Inductance coil welding equipment and welding process thereof

Abstract

The invention relates to inductance coil welding equipment. The inductance coil welding equipment comprises a feeding system, a solid-state welding device and a laser welding device; the laser welding device is arranged behind the solid-state welding device, the feeding system is used for sequentially conveying an inductance coil and a guide piece to the solid-state welding device and the laser welding device, and the solid-state welding device is used for pre-welding and fixing the inductance coil to the guide piece to form a welded inductance guide piece; the laser welding is used for conducting repair welding on the welding position of the inductance coil and the guide piece.

Description

Technical Field

[0001] The present application relates to the field of welding equipment, and in particular to an induction coil welding equipment and a welding process thereof. Background Art

[0002] Inductors are widely used in electronic devices. As electronic products develop towards smaller, lighter and more integrated, higher requirements are placed on the production of inductors.

[0003] In the production process of inductor coils, solid-state welding or laser welding technology is currently mainly used. Solid-state welding has the significant advantages of fast welding speed and high efficiency; however, solid-state welding has certain difficulties in welding quality inspection, because solid-state welding does not require the two welding surfaces to be strictly in contact, and welding can be achieved by being close, which may lead to welding defects, such as excessive heat and easy deformation of metal at the welding point. Laser welding has attracted much attention for its high precision, high quality and low heat-affected zone, but laser welding also faces challenges, including high equipment costs and high technical operation requirements. In particular, the pin diameter of the inductor coil is small, and the positioning accuracy requirements are extremely high. A slight deviation may cause the welding surface to be unable to contact.

[0004] Although solid-state welding is highly efficient, its welding quality and joint strength are insufficient, and there is a risk of welding defects, such as metal deformation caused by high temperature. Although laser welding has excellent welding quality, it has high equipment costs, high technical barriers, and a certain possibility of welding defects. At the same time, the alignment accuracy of the inductor coil pins is extremely high, which increases the difficulty of operation. Summary of the invention

[0005] In order to improve the welding quality and reliability of the inductor coil, the present application provides an inductor coil welding device and a welding process thereof, which adopts the following technical solutions: The present application discloses an inductor coil welding device, comprising a feeding system, a solid-state welding device and a laser welding device; the laser welding device is arranged behind the solid-state welding device, the feeding system is used to sequentially deliver the inductor coil and the guide plate to the solid-state welding device and the laser welding device, the solid-state welding device is used to pre-weld and fix the inductor coil to the guide plate to form a welded inductor guide plate; the laser welding is used to repair the welding point between the inductor coil and the guide plate.

[0006] With the above scheme, solid-state welding in related technologies will have welding defects, such as extremely high heat generation and easy deformation of metal at the welding point; the premise for laser welding to achieve welding is that the two welding surfaces must be in contact. Since the pin diameter of the inductor coil is very thin, the positioning accuracy requirements are particularly high. If there is a slight deviation in positioning, the two welding surfaces will not be in contact; this application realizes an integrated fully automatic processing flow from wire feeding to the final product, improving production efficiency and ensuring product quality; through the initial welding of solid-state welding and the secondary welding of laser welding, the advantages of the two welding technologies are combined, which not only overcomes the welding defects that may exist in solid-state welding, but also gives full play to the advantages of high precision and high quality of laser welding. Solid-state welding ensures that welding can be achieved even if there is a slight deviation in positioning, while laser welding further improves the accuracy and quality of welding, achieving high-quality welding of the inductor coil.

[0007] Optionally, the solid-state welding device includes a solid-state welding mechanism, a transporting mechanism and a pressing mechanism, wherein the transporting mechanism is used to transport the guide plate to the solid-state welding mechanism; the pressing mechanism is used to fix the guide plate and the inductor coil during the solid-state welding process to ensure that their relative positions are stable and prevent movement or dislocation during welding; the solid-state welding mechanism is used to pre-weld and fix the two pins of the inductor coil to the corresponding positions on the guide plate by resistance heating.

[0008] With the above solution, the guide piece is accurately transported to the working area of ​​the solid-state welding mechanism by the transport mechanism. Then the pressing mechanism is activated to fix the guide piece and the inductor coil to ensure that their relative positions are stable during the welding process and prevent poor welding caused by movement or misalignment. Then, the solid-state welding mechanism pre-welds and fixes the two pins of the inductor coil to the corresponding positions on the guide piece by means of resistance heating to complete the welding process.

[0009] Optionally, the solid-state welding mechanism includes a first base and a plurality of solid-state welding components, the solid-state welding components include a welding lifting component, a second lifting drive component, a first clamping component and an electric welding needle, the welding lifting component slidingly cooperates with the first base; the second lifting drive component is arranged on the first base, and is used to drive the welding lifting component to rise and fall; the first clamping component is arranged on the welding lifting component, and is used to clamp the electric welding needle, and the electric welding needle serves as a direct contact component in the welding process, thereby realizing the welding of the two pins of the inductor coil to the guide plate.

[0010] The above solution achieves precise clamping and welding of the inductor coil pins, ensuring a stable connection through solid-state welding even if there is a slight deviation in positioning, providing a reliable foundation for subsequent high-precision laser welding processing.

[0011] Optionally, the conveying mechanism includes a first feeding seat, a transverse cylinder, a lifting cylinder and a first lifting seat, the first feeding seat is fixed on the chassis, the first feeding seat is provided with a first feeding trough for conveying the guide plate, the transverse cylinder is arranged on the first feeding seat, the transverse cylinder is located below the first feeding trough, the transverse cylinder is used to drive the lifting cylinder to move in a first direction, the lifting cylinder is used to drive the first lifting seat to rise and fall, and two first pins are fixed on the top of the third lifting seat.

[0012] By adopting the above scheme, the automatic transmission and precise positioning of the guide piece are realized. At the same time, the guide piece is firmly clamped by the first pin, which improves the degree of automation and positioning accuracy in the welding process of the inductor coil, thereby improving the overall welding efficiency and product quality.

[0013] Optionally, the pressing mechanism includes a pressing cylinder and a pressing plate, the pressing cylinder is arranged on the first feeding seat, the piston rod of the pressing cylinder is fixedly connected to the pressing plate, and two first positioning pins for positioning the guide plate are fixedly arranged on the pressing plate.

[0014] By adopting the above scheme, the cooperation of the pressing cylinder and the pressing plate can effectively fix the guide piece before welding to prevent it from shifting or moving during the welding process, thereby ensuring that the welding position between the inductor coil and the guide piece is stable and accurate, further improving the welding quality and product consistency.

[0015] Optionally, the laser welding device also includes a first mounting seat, a first lifting drive mechanism, a second lifting seat and a laser welding mechanism, wherein the first lifting drive mechanism is arranged on the first mounting seat and is used to drive the second lifting seat to lift and lower, and the laser welding mechanism is arranged on the second lifting seat.

[0016] By adopting the above scheme, the entire device is firmly supported by the first mounting seat, and the first lifting drive mechanism drives the second lifting seat and the laser welding mechanism thereon to perform lifting and adjustment to ensure that the laser welding mechanism and the workpiece maintain the best welding position and angle, thereby realizing accurate and efficient laser welding operations. At the same time, safety protection, parameter adjustment and maintenance measures are used to ensure welding quality and stable operation of the equipment.

[0017] Optionally, a visual detection mechanism is also provided on the second lifting seat, and the visual detection mechanism is used to detect the position of the welded inductor guide plate; the laser welding mechanism includes a galvanometer assembly, a field lens and at least two groups of red light assemblies; the red light assembly and the field lens are arranged on the same side of the galvanometer assembly; the field lens is arranged on the outer wall of the galvanometer assembly and is detachably connected to the galvanometer assembly; the overlapping point of the light emitted by the at least two groups of red light assemblies coincides with the focal length of the field lens.

[0018] With the above solution, during the laser welding process, the galvanometer assembly accurately adjusts the direction and angle of the laser beam according to the position information of the inductor plate provided by the visual detection mechanism to ensure that the laser beam can accurately irradiate the welding part of the inductor plate. At the same time, the field lens focuses the laser beam to make its energy more concentrated, thereby achieving efficient and accurate welding.

[0019] Optionally, a paint stripping device is also included, which includes a sliding mechanism, a paint stripping mechanism and a dust suction mechanism, the sliding mechanism is used to drive the paint stripping mechanism and the dust suction mechanism to slide, the paint stripping mechanism is used to strip the wire, and the dust suction mechanism is used to collect waste generated during the stripping process.

[0020] By adopting the above scheme, the sliding drive mechanism can adjust the positions of the paint stripping mechanism and the dust suction mechanism in the horizontal direction. The paint stripping device can move flexibly in the horizontal direction to accurately strip the wire and effectively remove the insulation layer on the surface of the wire. At the same time, the dust suction mechanism collects the waste generated during the stripping process, keeps the working environment clean, and improves the efficiency and quality of wire processing.

[0021] Optionally, a winding device is also included, and the winding device includes: The upper die mechanism is used to wind the paint-stripped wire into an inductor coil; A lower die mechanism, cooperating with the upper die mechanism, is used to support the wire and form the shape of the inductor coil; A cutting mechanism for cutting the wire between the wire inductor coils; The bending mechanism is used to further bend the pins of the inductor coil.

[0022] By adopting the above scheme, the winding device can efficiently wind the paint-stripped wire into the shape of an inductor coil, and automatically cut the wire after winding is completed, and further bend the pins of the inductor coil, thereby improving production efficiency and coil forming quality.

[0023] The present application also provides a welding process using an induction coil welding device, comprising: S1: The unwinding device winds and releases the wire; S2: The paint stripping device strips the wire and removes the insulation layer of the wire at a set distance for subsequent winding and welding; S3: The winding device winds the peeled wire of a set distance into the shape of an inductor coil, and after the winding is completed, the cutting mechanism cuts the wire, and the bending mechanism further bends the pins of the inductor coil; S4: Winding and conveying the guide sheet to a predetermined position through a guide sheet feeding device; S5: The receiving device receives and transmits the inductor coil to the solid-state welding station, and accurately transmits the inductor coil to the bottom of the guide plate; S6: Visually inspect the coil position to ensure that the inductor coil is docked under the guide: S7: welding two pins of the inductor coil to the guide plate by a solid-state welding device to form a welded inductor guide plate; S8: Perform secondary welding on the welded inductor lead sheet by using a laser welding device; S9: The redundant pins of the inductor coil are cut off by the pin cutting device, and the welded inductor guide piece is transferred to the visual inspection station; S10: The detection device detects the size of the inductor coil. If the size is determined to be OK, the next step is directly performed; if the size is determined to be NG, the dotting device marks the welded inductor conductor that does not meet the standard; S11: When the size is judged as NG, the dotting device punches holes or performs other markings on the welded inductor conductor with dot marks for subsequent distinction and processing; S12: The final welded inductor conductors are collected by the reeling device, and both good products and marked defective products are collected uniformly.

[0024] With the above solution, the insulation layer is first removed by stripping the wire for a set distance to facilitate subsequent welding; the wire is then wound into an inductor coil and bent to increase structural stability; the visual system is then used for accurate positioning to ensure accurate docking of the inductor coil and reduce quality problems caused by misalignment; solid-state welding is then used for initial welding, and laser welding is used for secondary welding to improve welding strength and reliability; finally, product size consistency is ensured through foot cutting and visual inspection, and unqualified products are distinguished through dot marking, which greatly improves production efficiency and pass rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the induction coil welding equipment of the present application.

[0026] Figure 2 It is a schematic diagram of the paint stripping device of the present application.

[0027] Figure 3 It is a schematic diagram of the winding device of the present application.

[0028] Figure 4 It is a schematic diagram of the guiding mechanism of this application.

[0029] Figure 5 It is a schematic diagram of the lower mold mechanism of this application.

[0030] Figure 6 It is a schematic diagram of the material receiving device of the present application.

[0031] Figure 7 It is a schematic diagram of the guide film of this application.

[0032] Figure 8 It is a schematic diagram of the solid-state welding mechanism of the present application.

[0033] Fig. 9 It is a schematic diagram of the handling mechanism of this application.

[0034] Fig.10 It is a schematic diagram of the laser welding device of the present application.

[0035] Fig.11 It is a schematic diagram of the foot cutting device of the present application.

[0036] Fig.12 It is a schematic diagram of the first buffer lifting member of the present application.

[0037] Fig.13 It is a schematic diagram of the detection device of the present application.

[0038] Fig.14 It is a schematic diagram of the management mechanism of this application.

[0039] Description of reference numerals: 1. Unwinding device; 11. Unwinding mechanism; 12. Wire straightening mechanism; 121. Tensioner; 122. Wire straightening device; 2. Paint stripping device; 21. Sliding mechanism; 211. First support seat; 212. Sliding seat; 213. Screw rod; 214. Hand wheel; 22. Paint stripping mechanism; 23. Dust suction mechanism; 3. Winding device; 31. Upper mold mechanism; 311. First lifting assembly; 3111. First support seat; 3112. Third lifting seat; 3113. First lifting drive member; 312. Rotating drive member; 313. Spindle member; 314. Core pulling drive member; 315. Second clamping member; 32. Lower mold mechanism; 321. Second support seat; 322. Buffer assembly; 323. Second lifting assembly; 324. Lower mold core; 33. Cutting mechanism; 331, third cylinder; 332, cutting knife; 34, bending mechanism; 341, fourth cylinder; 342, bending block; 35, guiding mechanism; 351, horizontal driving assembly; 352, fifth lifting assembly; 353, guiding assembly; 4, guide plate feeding device; 41, support frame; 42, turntable; 43, rotating driving mechanism; 5, material receiving device; 51, horizontal driving mechanism; 52, longitudinal driving mechanism; 53, second lifting driving mechanism; 531, fourth lifting assembly; 532, lifting frame; 54, material receiving mechanism; 55, pushing foot mechanism; 6, solid welding device; 61, solid welding mechanism; 611, first base; 612, welding assembly; 6121, welding lifting member; 6122, second lifting member Driving member; 6123, first clamping member; 6124, welding needle; 62, conveying mechanism; 621, first feeding seat; 6211, first feeding trough; 622, lateral cylinder; 623, lifting cylinder; 624, first lifting seat; 625, first pin; 63, pressing mechanism; 631, pressing cylinder; 632, pressing plate; 633, first positioning pin; 7, laser welding device; 71, first mounting seat; 72, first lifting driving mechanism; 73, second lifting seat; 74, visual inspection mechanism; 75, laser welding mechanism; 751, galvanometer assembly; 752, field lens; 76, first light source mechanism; 8, cutting foot device; 81, cutting foot mechanism; 811, second base; 812, third support seat; 813, first Three lifting components; 814, first buffer lifting component; 815, foot cutting component; 8151, second positioning needle; 8152, foot cutting knife; 82, first feeding mechanism; 821, second feeding seat; 8211, second feeding trough; 822, second mounting seat; 823, sliding member; 824, feeding cylinder; 825, lifting cylinder; 826, fourth lifting seat; 827, second insertion pin; 9, dotting device; 91, dotting mechanism; 911, sixth support seat; 912, sixth lifting component; 913, second buffer lifting component; 914, dotting needle; 92, third feeding mechanism; 93, second pressing mechanism; 10, detection device; 101, second feeding mechanism; 102, first pressing mechanism; 103, fifth support seat;104, lifting mechanism; 105, size detection mechanism; 106, second light source mechanism; 13, positioning device; 14, winding device; 15, chassis; 16, guide plate; 161, through slot; 162, connecting part; 163, socket. ; DETAILED DESCRIPTION

[0040] The following is combined with Figure 1-14 Describe this application in detail.

[0041] In this embodiment, the conveying direction of the guide blade is defined as a first direction, and the width direction of the chassis is defined as a second direction.

[0042] Example 1 An induction coil welding device provided in an embodiment of the present application, referring to Figure 1 , including a chassis 15, one side of the chassis 15 is provided with a reeling device 1, and the chassis 15 is sequentially provided with a paint stripping device 2, a winding device 3, a guide plate feeding device 4, a material receiving device 5, a solid-state welding device 6, a laser welding device 7, a foot cutting device 8, a detection device 10, a dotting device 9 and a reeling device 14.

[0043] Reference Figure 1 The unwinding device 1 includes an unwinding mechanism 11 for installing a bobbin and a wire straightening mechanism 12. The wire straightening mechanism 12 includes a tensioner 121 and a wire straightener 122. The tensioner 121 can monitor the tension state of the wire in real time. The wire straightener 122 includes a plurality of guide wheels for unwinding the wire along a predetermined path.

[0044] Reference Figure 1 and Figure 2 The paint stripping device 2 includes a sliding mechanism 21, a paint stripping mechanism 22 and a dust suction mechanism 23. The sliding mechanism 21 includes a first support seat 211, a sliding seat 212, a screw 213 and a hand wheel 214. The first support seat 211 is fixed on the chassis 15, the sliding seat 212 is slidably matched with the first support seat 211, and the paint stripping mechanism 22 is arranged on the sliding seat 212. The screw 213 extends along the first direction, the end of the screw 213 is rotatably connected to the first support seat 211, and the hand wheel 214 is fixed on the screw 213. Specifically, the paint stripping mechanism 22 is a three-claw pneumatic peeling machine. The dust suction mechanism 23 is arranged on the paint stripping mechanism 22, and the dust suction mechanism 23 is used to extract the waste in the paint stripping mechanism 22.

[0045] Reference Figure 3 and Figure 4The winding device 3 includes an upper mold mechanism 31, a lower mold mechanism 32, a cutting mechanism 33 and a bending mechanism 34. The upper mold mechanism 31 includes a first lifting assembly 311, a rotating drive member 312, a main shaft member 313, a core-pulling drive member 314 and a second clamping member 315. The first lifting assembly 311 includes a first support 3111, a third lifting seat 3112 and a first lifting drive member 3113. The first support 3111 is fixed on the chassis 15, and the third lifting seat 3112 is slidably matched with the first support 3111. The first lifting drive member 3113 is arranged on the first support 3111 to drive the third lifting seat 3112 to rise and fall. The main shaft member 313 is rotatably connected to the third lifting seat 3112, and the rotating drive member 312 is arranged on the third lifting seat 3112 to drive the main shaft member 313 to rotate. The core-pulling driving member 314 is disposed on the third lifting seat 3112, and the core-pulling driving member 314 is used to drive the main shaft member 313 to rise and fall. The second clamping member 315 is disposed on the third lifting seat 3112, and the second clamping member 315 is used to automatically clamp the wire.

[0046] Reference Figure 3 and Figure 4 A guide mechanism 35 is provided on the first support 3111, and the guide mechanism 35 includes a horizontal driving component 351, a fifth lifting component 352 and a guide component 353. The horizontal driving component 351 is arranged on the third lifting seat 3112 to drive the fifth lifting component 352 to move along the first direction. The fifth lifting component 352 is used to drive the guide component 353 to rise and fall. The guide component 353 is provided with a guide hole for the wire to pass through.

[0047] Reference Figure 1 , Figure 4 and Figure 5 The lower mold mechanism 32 includes a second support 321, a buffer assembly 322, a second lifting assembly 323 and a hollow lower mold core 324. The second support 321 is fixed inside the chassis 15, the buffer assembly 322 and the second lifting assembly 323 are arranged on the second support 321, and the second lifting assembly 323 is used to drive the buffer assembly 322 to rise and fall. The lower mold core 324 is arranged on the buffer assembly 322 and is located below the main shaft 313, and the axis of the lower mold core 324 coincides with the axis of the main shaft 313.

[0048] Reference Figure 3 The cutting mechanism 33 includes a third cylinder 331 and a cutting knife 332. The third cylinder 331 is fixed to the second support 321 on the chassis 15. The piston rod of the third cylinder 331 is fixedly connected to the cutting knife 332 for cutting the copper wire.

[0049] Two bending mechanisms 34 are provided, each of which includes a fourth cylinder 341 and a bending block 342. The fourth cylinder 341 is provided on the chassis 15, and the piston rod of the fourth cylinder 341 is fixedly connected to the bending block 342. The bending mechanism 34 is used to further bend the inductor coil.

[0050] Reference Figure 1 and Figure 6 The receiving device 5 includes a transverse driving mechanism 51, a longitudinal driving mechanism 52, a second lifting driving mechanism 53, a receiving mechanism 54 and a foot pushing mechanism 55. The transverse driving mechanism 51 is arranged at one end of the chassis 15. The transverse driving mechanism 51 is used to drive the longitudinal driving mechanism 52 to move along the second direction. The longitudinal driving mechanism 52 is used to drive the second lifting driving mechanism 53 to move along the first direction. The second lifting driving mechanism 53 is used to drive the receiving mechanism 54 to move up and down. The receiving mechanism 54 is provided with a positioning groove for loading the inductor coil. The foot pushing mechanism 55 is arranged on the receiving mechanism 54 to push the pins of the inductor coil to the fixed side.

[0051] Reference Figure 6 The second lifting drive mechanism 53 includes a lifting frame 532 and a fourth lifting component 531 arranged on the longitudinal drive mechanism 52, and the fourth lifting component 531 is used to drive the lifting frame 532 to move up and down.

[0052] Reference Figure 1 The guide sheet feeding device 4 includes a support frame 41, a rotation drive mechanism 43 and two turntables 42. The support frame 41 is fixed to the end of the chassis 15, and the two turntables 42 are rotatably connected to the support frame 41. The rotation drive mechanism 43 is arranged on the support frame 41, and is used to drive the two turntables 42 to rotate simultaneously.

[0053] Reference Figure 7 The guide piece 16 is provided with a plurality of through slots 161 along its length direction, and both sides of each through slot 161 are integrally formed with connecting portions 162 for connecting pins.

[0054] Reference Figure 8 and Fig. 9, the solid-state welding device 6 can specifically implement resistance welding, friction welding, diffusion welding and compression welding, etc. In this embodiment, the solid-state welding device 6 includes a solid-state welding mechanism 61 and a transport mechanism 62. The solid-state welding mechanism 61 includes a first base 611 and four mutually symmetrical welding components 612. Each welding component 612 includes a welding lifting member 6121, a second lifting drive member 6122, a first clamping member 6123 and an electric welding needle 6124. The welding lifting member 6121 is slidably matched with the first base 611. The first lifting drive member 3113 is arranged on the first base 611 to drive the welding lifting member 6121 to rise and fall. The first clamping member 6123 is arranged on the welding lifting member 6121, and is used to clamp the electric welding needle 6124. The electric welding needle 6124 is used to weld the two pins of the inductor coil to the corresponding two connecting parts 162.

[0055] Reference Figure 8 and Fig. 9 The transport mechanism 62 extends through the solid welding mechanism 61 below the solid welding mechanism, and the transport mechanism 62 includes a first feeding seat 621, a traverse cylinder 622, a lifting cylinder 623 and a first lifting seat 624. The first feeding seat 621 is fixed on the chassis 15 and is provided with a first feeding trough 6211 for conveying the guide plate 16, and the first feeding trough 6211 extends along a first direction. The traverse cylinder 622 is arranged on the first feeding seat 621 below the first feeding trough 6211, and the traverse cylinder 622 is used to drive the lifting cylinder 623 to move along the first direction, and the lifting cylinder 623 is used to drive the first lifting seat 624 to move up and down, and two first pins 625 are fixed on the top of the first lifting seat 624. Two insertion holes 163 are correspondingly opened on both sides of each through slot 161 of the guide piece 16. The distance between the two insertion holes 163 is equal to the distance between the two first insertion pins 625 on the first lifting seat 624, ensuring that the insertion pins can be accurately inserted into the insertion holes 163 of the guide piece 16.

[0056] The solid-state welding device 6 also includes a pressing mechanism 63, which includes a pressing cylinder 631 and a pressing plate 632. The pressing cylinder 631 is arranged on the first feeding seat 621, and the piston rod of the pressing cylinder 631 is fixedly connected to the pressing plate 632. Two first positioning needles 633 for positioning the guide plate 16 are fixedly arranged on the pressing plate 632.

[0057] Reference Fig.10The laser welding device 7 includes a first mounting seat 71, a first lifting drive mechanism 72 and a second lifting seat 73. The first mounting seat 71 is fixed on the chassis 15. The first lifting drive mechanism 72 is arranged on the first mounting seat 71 to drive the second lifting seat 73 to lift and lower. The second lifting seat 73 is provided with a visual detection mechanism 74 for detecting the position of the welded inductor guide piece 16 and a laser welding mechanism 75 for performing secondary welding on the welded inductor guide piece 16. The laser welding mechanism includes a galvanometer assembly 751, a field lens 752 and at least two groups of red light assemblies; the red light assembly and the field lens are arranged on the same side of the galvanometer assembly 751; the field lens 752 is arranged on the outer wall of the galvanometer assembly 751, and the field lens 752 is detachably connected to the galvanometer assembly 751; the coincidence point of the light emitted by at least two groups of red light assemblies coincides with the focal length of the field lens 752. The galvanometer assembly 751 is mainly used for scanning and positioning the laser beam, and the field lens 752 is mainly used to adjust the laser focal length and control the size of the laser beam.

[0058] Reference Fig.11 The pin cutting device 8 includes a first feeding mechanism 82, and the first feeding mechanism 82 includes a second feeding seat 821 fixed on the chassis 15. The second feeding seat 821 is provided with a second feeding slot 8211 for conveying the welded inductor guide.

[0059] The first feeding mechanism 82 also includes a second mounting seat 822, a sliding member 823, a feeding cylinder 824, a lifting cylinder 825 and a fourth lifting seat 826. The second mounting seat 822 is fixed on the chassis 15, and the sliding member 823 is slidably matched with the second mounting seat 822. The feeding cylinder 824 is arranged on the second mounting seat 822, and the feeding cylinder 824 is used to drive the sliding member 823 to slide along the first direction. The lifting cylinder 825 is arranged on the sliding member 823, and the lifting cylinder 825 is used to drive the fourth lifting seat 826 to rise and fall. Two second pins 827 are fixed on the fourth lifting seat 826. The distance between the two jacks 163 is equal to the distance between the two second pins 827 on the third lifting seat 3112, ensuring that the pins can be inserted into the jacks 163 of the guide plate 16.

[0060] The pin cutting device 8 also includes a pin cutting mechanism 81, which includes a second base 811, a third support base 812, a third lifting assembly 813, a first buffer lifting member 814 and a pin cutting assembly 815. The second base 811 is arranged on the chassis 15, and the third support base 812 is connected to the second base 811 for supporting and positioning other components. The first buffer lifting member 814 is slidably matched with the third support base 812, and the third lifting assembly 813 is arranged on the third support base 812 for driving the first buffer lifting member 814 to rise and fall. The pin cutting assembly 815 is used to position the guide plate 16 and to cut off the pins on the inductor coil.

[0061] The pin cutting assembly 815 includes a second positioning pin 8151 and a pin cutting knife 8152. The second positioning pin 8151 is disposed on the first buffer lifting member 814. When the first buffer lifting member 814 descends, the second positioning pin 8151 will first contact the guide piece 16 to achieve accurate positioning of the guide piece 16. As the lifting action continues, the pin cutting knife 8152 will pass through the sliding hole of the third lifting block 8143, contact the pin on the inductor coil and cut it off.

[0062] Reference Fig.13 The detection device 10 includes a second feeding mechanism 101, and the working principle of the second feeding mechanism 101 is the same as that of the first feeding mechanism 82. The detection device 10 also includes a first pressing mechanism 102, and the first pressing mechanism 102 is used to increase the stability of the guide sheet transmission.

[0063] The detection device 10 also includes a fifth support base 103, a lifting mechanism 104, a size detection mechanism 105 and a second light source mechanism 106. The fifth support base 103 is fixed on the chassis 15, and the lifting mechanism 104 is arranged on the fifth support base 103. The lifting mechanism 104 is used to drive the size detection mechanism 105 to rise and fall so as to adjust the size detection mechanism 105 to the optimal detection position.

[0064] The dotting device 9 includes a third feeding mechanism 92, a second pressing mechanism 93 and a dotting mechanism 91. The third feeding mechanism 92 is used to accurately convey the inductor coil product to be dotted to the working area of ​​the dotting mechanism 91, and the second pressing mechanism 93 is used to increase the stability of the guide sheet transmission.

[0065] The dotting mechanism 91 includes a sixth support seat 911, a sixth lifting assembly 912, a second buffer lifting member 913 and a dotting needle 914. The sixth support seat 911 is arranged on the third feeding mechanism 92 to ensure the stable operation of the entire dotting mechanism 91. The sixth lifting assembly 912 is arranged on the sixth support seat 911 to drive the second buffer lifting member 913 to rise and fall, thereby driving the dotting needle 914 to rise and fall.

[0066] Reference Figure 1 The winding device 14 is arranged at one end of the chassis 15 away from the guide plate feeding device 4, and the structure of the winding device 14 is symmetrical to that of the guide plate feeding device 4.

[0067] Example 2 This embodiment discloses a welding process of an inductor coil, comprising: S1: winding and releasing the wire through the unwinding device 1; S2: the paint stripping device 2 performs a paint stripping process on the wire to remove the insulation layer on the wire; S3: The winding device 3 winds the peeled wire of a set distance into the shape of an inductor coil, and after the winding is completed, the cutting mechanism 33 cuts the wire, and the bending mechanism 34 further bends the pins of the inductor coil; S4: The guide sheet feeding device 4 winds and conveys the guide sheet 16 to a predetermined position; S5: The receiving device 5 receives and transmits the inductor coil to the solid-state welding station, and accurately transmits the inductor coil to the bottom of the guide plate 16. At this time, the guide plate 16 has been wound and transmitted to the predetermined position by the guide plate feeding device 4; S6: Visually inspect the coil position to ensure that the inductor coil is docked under the guide piece 16: S7: The solid-state welding device 6 welds two pins of the inductor coil to the guide plate 16 to form a welded inductor guide plate; S8: performing secondary welding on the welded inductor lead sheet using the laser welding device 7 to enhance welding strength and reliability; S9: the pin cutting device 8 cuts off the redundant pins of the inductor coil and transfers the welded inductor guide to the visual inspection station; S10: The detection device 10 detects the size of the inductor coil. If the size is determined to be OK, the next step is directly performed; if the size is determined to be NG, the dotting device 9 marks the welded inductor conductor that does not meet the standard; S11: When the size is judged as NG, the welded inductor conductor with dot marks is punched or otherwise marked for subsequent distinction and processing; S12: The winding device 14 winds up all the welded inductor sheets after the previous processing steps.

[0068] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An induction coil welding device, characterized in that: The invention comprises a feeding system, a solid-state welding device (6) and a laser welding device (7); the laser welding device (7) is arranged behind the solid-state welding device (6); the feeding system is used to sequentially deliver the inductor coil and the guide plate (16) to the solid-state welding device (6) and the laser welding device (7); the solid-state welding device (6) is used to pre-weld and fix the inductor coil to the guide plate (16) to form a welded inductor guide plate (16); and the laser welding is used to repair the welding point between the inductor coil and the guide plate (16).

2. The induction coil welding device according to claim 1, characterized in that: The solid-state welding device (6) comprises a solid-state welding mechanism (61), a transport mechanism (62) and a pressing mechanism (63); the transport mechanism (62) is used to transport the guide piece (16) to the solid-state welding mechanism (61); the pressing mechanism (63) is used to fix the guide piece (16) and the inductor coil during the solid-state welding process to ensure that the relative position between them is stable and prevent movement or misalignment during welding; the solid-state welding mechanism (61) is used to pre-weld and fix the two pins of the inductor coil to the corresponding positions on the guide piece (16) by means of resistance heating.

3. The induction coil welding device according to claim 2, characterized in that: The solid-state welding mechanism (61) comprises a first base (611) and a plurality of solid-state welding components (612); the solid-state welding components (612) comprise a welding lifting member (6121), a second lifting drive member (6122), a first clamping member (6123) and an electric welding needle (6124); the welding lifting member (6121) is slidably matched with the first base (611); the second lifting drive member (6122) is arranged on the first base (611) and is used to drive the welding lifting member (6121) to rise and fall; the first clamping member (6123) is arranged on the welding lifting member (6121) and is used to clamp the electric welding needle (6124); the electric welding needle (6124) is used as a direct contact component in the welding process and is used to weld two pins of the inductor coil to the guide plate (16).

4. The induction coil welding device according to claim 2, characterized in that: The transport mechanism (62) comprises a first feeding seat (621), a transverse cylinder (622), a lifting cylinder (623) and a first lifting seat (624); the first feeding seat (621) is fixed on the chassis (15); a first feeding trough (6211) for conveying the guide plate (16) is provided on the first feeding seat (621); the transverse cylinder (622) is arranged on the first feeding seat (621); the transverse cylinder (622) is located below the first feeding trough (6211); the transverse cylinder (622) is used to drive the lifting cylinder (623) to move along a first direction; the lifting cylinder (623) is used to drive the first lifting seat (624) to move up and down; two first pins (625) are fixed on the top of the first lifting seat (624).

5. The induction coil welding device according to claim 4, characterized in that: The pressing mechanism (63) comprises a pressing cylinder (631) and a pressing plate (632); the pressing cylinder (631) is arranged on the first feeding seat (621); the piston rod of the pressing cylinder (631) is fixedly connected to the pressing plate (632); and two first positioning needles (633) for positioning the guide plate (16) are fixedly arranged on the pressing plate (632).

6. The induction coil welding device according to claim 1, characterized in that: The laser welding device (7) further comprises a first mounting seat (71), a first lifting drive mechanism (72), a second lifting seat (73) and a laser welding mechanism (75); the first lifting drive mechanism (72) is arranged on the first mounting seat (71) and is used to drive the second lifting seat (73) to move up and down; and the laser welding mechanism (75) is arranged on the second lifting seat (73).

7. The induction coil welding device according to claim 6, characterized in that: The second lifting seat (73) is also provided with a visual detection mechanism (74), and the visual detection mechanism (74) is used to detect the position of the welded inductor guide plate (16); the laser welding mechanism (75) comprises a galvanometer assembly (751), a field lens and at least two groups of red light assemblies; the red light assembly and the field lens are arranged on the same side of the galvanometer assembly (751); the field lens is arranged on the outer wall of the galvanometer assembly (751) and is detachably connected to the galvanometer assembly (751); and the overlapping point of the light emitted by the at least two groups of red light assemblies coincides with the focal length of the field lens.

8. The induction coil welding device according to claim 1, characterized in that: The invention also comprises a paint stripping device (2), wherein the paint stripping device (2) comprises a sliding mechanism (21), a paint stripping mechanism (22) and a dust suction mechanism (23), wherein the sliding mechanism (21) is used to drive the paint stripping mechanism (22) and the dust suction mechanism (23) to slide, the paint stripping mechanism (22) is used to strip the wire, and the dust suction mechanism (23) is used to collect waste generated during the stripping process.

9. The induction coil welding device according to claim 1, characterized in that: It also includes a winding device (3), the winding device (3) comprising: An upper mold mechanism (31) is used to wind the paint-stripped wire into an inductor coil; A lower mold mechanism (32) cooperates with the upper mold mechanism (31) to support the wire and form the shape of the inductor coil; A cutting mechanism (33) for cutting the wire between the wire inductor coils; The bending mechanism (34) is used to further bend the pins of the inductor coil.

10. A welding process using an induction coil welding device according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1: unwinding device (1) winds and releases the wire; S2: The paint stripping device (2) performs a paint stripping process on the wire to remove a set distance of the insulation layer on the wire for subsequent winding and welding; S3: The winding device (3) winds the peeled wire of a set distance into the shape of an inductor coil, and after the winding is completed, the cutting mechanism (33) cuts the wire, and the bending mechanism (34) further bends the pins of the inductor coil; S4: Winding and conveying the guide sheet (16) to a predetermined position through the guide sheet feeding device (4); S5: The receiving device (5) receives and transmits the inductor coil to the solid-state welding station, and accurately transmits the inductor coil to the bottom of the guide plate (16); S6: Visually inspect the coil position to ensure that the inductor coil is docked under the guide (16): S7: welding two pins of the inductor coil to the guide plate (16) by a solid-state welding device (6) to form a welded inductor guide plate; S8: performing secondary welding on the welded inductor conductors using a laser welding device (7); S9: cutting off the redundant pins of the inductor coil by the pin cutting device (8), and transferring the welded inductor guide piece to the visual inspection station; S10: The detection device (10) detects the size of the inductor coil. If the size is determined to be OK, the next step is directly performed; if the size is determined to be NG, the dotting device (9) marks the welded inductor conductor that does not meet the standard; S11: When the size is determined to be NG, the dotting device (9) performs punching or other marking processing on the welded inductor conductor with dot marks, so as to facilitate subsequent distinction and processing; S12: The final welded inductor conductors are collected by the reeling device (14), and both good products and marked defective products are collected uniformly.

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