Welding device and welding method for processing pin headers on intelligent automobile instrument circuit board

Abstract

The present application relates to the technical field of circuit board welding, and discloses a welding device for processing pins on a circuit board of an intelligent automobile instrument, which is mainly composed of a fixing mechanism, and the fixing mechanism is movably arranged on the workbench, and the fixing mechanism includes a soldering assembly for precise welding of workpieces. The present invention comprises a soldering assembly consisting of a guide wire assembly and a soldering iron assembly, a feeding assembly is arranged in the guide wire assembly, the feeding assembly is used to guide the movement of the tin wire, a moving assembly is arranged in the soldering iron assembly, and the moving assembly is used to cause the movable tube and the soldering iron head to rotate by themselves. When the moving assembly is started, the feeding assembly is started synchronously, causing one end of the tin wire to be pushed downward and contact the inner wall of the soldering iron head, effectively melting the end of the tin wire to form tin liquid, and moving downward along the inner wall of the soldering iron head. Due to the rotation of the soldering iron head, the tin liquid is caused to flow evenly to various parts of the jack, so that the soldering point is evenly full.

Description

Technical Field

[0001] The present application relates to the technical field of circuit board welding, and in particular to a welding device and a welding method for processing pin headers on a circuit board of an intelligent automobile instrument. Background Art

[0002] Pin headers are a type of PCB circuit board connector widely used in electronics, electrical appliances, and instruments. Their function is to act as a bridge between blocked or isolated circuits within a circuit, and to take on the task of transmitting current or signals. In the circuit board of smart car instruments, pin headers play a very important role. They are not only responsible for connecting various components, but also involve the transmission of current or signals. Existing circuit boards and pin headers are generally connected by soldering, and soldering requires a soldering machine. When soldering, first use a breadboard to fix the pin header, and insert the pin header into the jack of the circuit board, then use an electric soldering iron to melt the tin wire at the connection point between the two, and wait for the solder to solidify to complete the soldering operation of the circuit board pin header.

[0003] However, the existing welding devices still have some defects during use: first, since the pin header may protrude compared to the plane of the circuit board, it is difficult to place the tin wire on the socket, and it is difficult for the soldering iron tip to melt the tin wire, resulting in uneven solder joints on the circuit board, which not only reduces the welding quality but also affects the aesthetics; secondly, the breadboard is easily burned and melted due to excessive heat during use, resulting in material damage and inability to be reused. Summary of the invention

[0004] The present application proposes a welding device for processing pin headers of intelligent automobile instrument circuit boards, which has the advantages of effectively improving the quality of solder joints and effectively preventing overheating and damage of breadboards. It is used to solve the problems that tin wire and soldering iron tips are not easy to perform soldering operations on raised pin headers, resulting in poor welding quality and low aesthetics, and the breadboard is easily damaged by overheating during the welding process.

[0005] To achieve the above-mentioned purpose, the present application adopts the following technical solution: A welding device for processing pin headers of intelligent automobile instrument circuit boards, comprising: a working mechanism for placing workpieces and improving the welding stability of workpieces, the working mechanism consisting of a workbench and a breadboard, and a breadboard is placed on the top of the workbench;

[0006] The workpiece is a part to be processed, and the workpiece is composed of a circuit board and a pin header. The circuit board is provided with a plurality of plug holes, and the circuit board is movably connected with one end of the pin header through the plug holes. The diameter of the plug holes of the circuit board is larger than the diameter of the pin header.

[0007] A fixing mechanism, wherein the workbench is movably provided with a fixing mechanism, and the fixing mechanism comprises a soldering assembly, which is used for accurately welding workpieces, and the soldering assembly consists of a guide wire assembly and a soldering iron assembly;

[0008] A guide wire assembly, wherein the front end of the fixing mechanism is provided with a guide wire assembly, and a tin wire is movably provided inside the guide wire assembly for quantitatively conveying the tin wire;

[0009] A soldering iron assembly is provided on the outside of the guide wire assembly and is used to melt the tin wire and rotate it to achieve full welding of the workpiece insertion hole position.

[0010] Furthermore, the breadboard is provided with a plurality of small holes, and the breadboard is movably connected to the other end of the pin header through the small holes. The small holes of the breadboard are adapted to the size of the pin header, so as to improve the welding stability of the workpiece.

[0011] Furthermore, clamping mechanisms are provided on the top of the workbench on the left and right sides of the breadboard, and the two sides of the workpiece are respectively fitted with the two clamping mechanisms to further improve the welding stability of the workpiece.

[0012] Furthermore, the fixing mechanism further comprises:

[0013] A support column, a long groove is provided on the top of the workbench behind the breadboard, and the workbench is movably sleeved with the spiral shaft through the long groove, one end of the spiral shaft is movably connected with a rotating motor, the lower end of the support column is movably clamped with the long groove of the workbench, and the lower end of the support column is threadedly sleeved with the spiral shaft;

[0014] A support plate, wherein a groove is provided at the upper end of the support column, and the support column is movably connected to the support plate through the groove, and a plurality of fixing holes are provided on the wall surface of the support plate;

[0015] A fixing bolt is provided at the upper end of the support column with a through hole, and the fixing bolt passes through the through hole of the support column and is sleeved with a fixing hole of the support plate.

[0016] Further, the guidewire assembly comprises:

[0017] A wire guide tube, wherein a guide hole is provided inside the wire guide tube, and the wire guide tube is movably connected with the tin wire through the guide hole, the diameter of the guide hole is larger than the diameter of the tin wire, and the wire guide tube is made of a high temperature resistant heat insulating material;

[0018] Feeding assembly: two feeding assemblies are arranged inside the wire guide tube, and the two feeding assemblies are arranged opposite to each other, so as to provide power for the downward movement of the tin wire.

[0019] Furthermore, the feeding assembly comprises:

[0020] A feed ring, wherein a guide groove is provided on the inner wall of the guide hole of the wire guide tube, and the length of the guide groove is shorter than that of the guide hole, the wire guide tube is movably connected with the feed ring through the guide groove, the inner ring of the feed ring is movably connected with the tin wire, and there is an interference fit between the feed ring and the tin wire, and a vertical groove is provided inside the wire guide tube located above the guide groove, the wire guide tube is fixedly connected with one end of a vertical spring through the vertical groove, and the other end of the vertical spring is fixedly connected with the top end of the feed ring;

[0021] A feed rope, wherein a guide cavity is provided inside the wire guide tube, and the wire guide tube is movably connected with the feed rope through the guide cavity, and one end of the feed rope is fixedly connected to the bottom end of the feed ring;

[0022] A feeding member is fixedly clamped on the top edge of the wire guide tube, and a winding roller with a motor is arranged inside the feeding member, and the other end of the feeding rope is fixedly connected to the winding roller of the feeding member.

[0023] Furthermore, the soldering iron assembly comprises:

[0024] A fixing ring, the inner ring of which is fixedly sleeved with the wire guide tube;

[0025] A telescopic member, wherein the number of the telescopic members is two and the two telescopic members are arranged opposite to each other, and one end of the telescopic member is fixedly sleeved with the bottom end of the fixing ring;

[0026] A movable ring, wherein the other end of the telescopic member is fixedly connected to the top of the movable ring, and the inner ring of the movable ring is movably sleeved with the wire guide tube;

[0027] A movable tube, the inner ring of which is movably sleeved with the wire guide tube, and the top of the movable tube is fitted with the bottom of the movable ring, and the soldering iron tip is made of a high temperature resistant heat-insulating material;

[0028] A soldering iron tip, wherein the bottom end of the movable tube is fixedly connected to the soldering iron tip, a heating component is arranged in the soldering iron tip, and a U-shaped hole is opened on both side walls of the soldering iron tip, and the shape of the U-shaped hole is an inverted U shape;

[0029] A movable part, a movable hole is provided at the lower end of the movable tube, and the movable hole is located above the two U-shaped grooves, the movable tube is movably connected with the movable part through the movable hole, and the shape of the movable part is T-shaped, one end of the movable part located outside the movable tube is movably connected with the movable tube through a transverse spring, and the other end of the movable part located outside the movable tube is provided with an arc groove, and the movable part is connected with the tin wire through the arc groove, and the movable part is made of a high temperature resistant heat insulating material;

[0030] A movable assembly, wherein the movable ring is provided with a movable assembly inside, and the movable assembly is fixedly connected to the movable tube. The number of the movable assembly is two, and the two movable assemblies are arranged opposite to each other, so as to realize the self-rotation of the movable tube and the soldering iron tip, and improve the uniformity and aesthetics of the soldering point of the workpiece;

[0031] Auxiliary components: Auxiliary components are arranged inside the movable ring to cool the breadboard in time.

[0032] Furthermore, the mobile component includes:

[0033] A moving body, wherein a ring groove is provided at the bottom end of the movable ring, and the cross-sectional shape of the ring groove is a cross shape, the movable ring is movably engaged with the moving body through the ring groove, and the bottom end of the moving body is fixedly connected to the movable tube, and the cross-sectional shape of the moving body is a T shape;

[0034] A moving block, wherein the top of the moving body is fixedly connected with the moving block, and the top of the moving block is arc-shaped;

[0035] A moving part, wherein a moving groove is provided on one side of one of the moving bodies, and the moving body is movably connected to the moving part through the moving groove, a rotating motor is arranged at one end of the moving part, and the opening and closing of the rotating motor in the moving component is synchronized with the motor in the feeding component, a tooth groove is provided on the wall surface of the movable ring located at the outermost side of the ring groove, and the movable ring is meshed with the moving part through the tooth groove.

[0036] Furthermore, the auxiliary components include:

[0037] Deformation capsules, the top of the ring groove of the movable ring is fixedly connected with a deformation capsule, the number of the deformation capsules is several, and they are evenly arranged around the movable ring, and the deformation capsules are made of flexible rubber material;

[0038] An air intake pipe, wherein the movable ring is fixedly sleeved with the air intake pipe, one end of the air intake pipe is connected to the outside, and the other end of the air intake pipe is fixedly connected to the deformation bag, a one-way valve is arranged inside the air intake pipe, and the air flow direction of the one-way valve is from the outside to the deformation bag;

[0039] An air outlet pipe, the interior of the movable ring is fixedly sleeved with the air outlet pipe, and one end of the air outlet pipe is fixedly connected to the deformation bag, a one-way valve is arranged inside the air outlet pipe, and the air flow direction of the one-way valve is from the deformation bag to the ring pipe;

[0040] The ring tube is fixedly sleeved inside the movable ring, and the other end of the air outlet pipe is fixedly connected to the ring tube;

[0041] An exhaust pipe, one end of which is fixedly connected to the ring pipe, the wall of which is fitted with the support column via two stoppers, the exhaust pipe above the stoppers being made of a flexible material, and the exhaust pipe below the stoppers being made of a rigid material;

[0042] An exhaust head, the other end of the exhaust pipe is fixedly connected to the exhaust head, and the exhaust head faces the breadboard obliquely rearward.

[0043] Furthermore, a welding method of a welding device for processing pin headers of a smart automobile instrument circuit board comprises the following steps:

[0044] The first step is to install the workpiece above the working mechanism and fix it with the clamping mechanism, then adjust the position of the fixing mechanism, insert the tin wire into the wire guide assembly, and preheat the soldering iron tip by powering on;

[0045] The second step is to use the telescopic part to move the movable ring, the movable tube and the soldering iron tip downward so that the soldering iron tip covers the socket of the workpiece, and then start the feeding part so that the feeding ring drives the tin wire downward so that one end of the tin wire is restricted by the movable part and contacts and melts with the soldering iron tip, so that the molten tin liquid drips along the soldering iron tip into the socket of the workpiece;

[0046] The third step is to start the moving part at the same time, so that the moving part drives the movable tube and the soldering iron tip to rotate, so that the tin liquid is evenly flowed to various parts of the socket by the soldering iron tip, making the solder joint even and full;

[0047] Step 4: When the moving assembly rotates in the annular groove, the moving block effectively squeezes the deformation bag so that the exhaust pipe continuously discharges gas, thereby cooling the breadboard;

[0048] In the fifth step, after the welding of one socket is completed, the fixing mechanism moves horizontally so that the soldering iron tip covers the next socket, and this process is repeated until the welding is completed. Finally, the soldering iron tip is moved up using the telescopic member so that the soldering iron assembly is away from the workpiece.

[0049] This application has the following beneficial effects:

[0050] The soldering device for processing pin headers on a circuit board of an intelligent automobile instrument provided in the present application comprises a soldering assembly consisting of a wire guide assembly and a soldering iron assembly, a feeding assembly is arranged in the wire guide assembly, the feeding assembly is used to guide the movement of the tin wire, a moving assembly is arranged in the soldering iron assembly, the moving assembly is used to cause the movable tube and the soldering iron tip to self-rotate, when the moving assembly is started, the feeding assembly is started synchronously, causing one end of the tin wire moving downward to be pushed and contact the inner wall of the soldering iron tip, effectively melting the end of the tin wire to form tin liquid, and moving downward along the inner wall of the soldering iron tip, the rotation of the soldering iron tip causes the tin liquid to flow evenly to various parts of the socket, so that the soldering point is even and full, and at the same time, since the number of rotations of the soldering iron assembly and the amount of tin wire feeding are uniformly limited, the uniformity of the soldering points in each socket on the circuit board is effectively enhanced, which not only improves the welding quality, but also ensures the aesthetics of the soldering points.

[0051] By arranging an auxiliary component in the soldering iron component, when the moving component moves along the annular groove, the moving block continuously squeezes each deformation bag, effectively transferring the gas collected by the air inlet pipe to the air outlet pipe, and finally using the exhaust head to discharge it to the breadboard where the soldering operation has just ended, thereby effectively cooling the breadboard in time, preventing the breadboard from being damaged by excessive heat, and improving the utilization rate of the breadboard. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] The accompanying drawings, which constitute a part of the specification, illustrate embodiments disclosed in the present application and, together with the description, serve to explain the principles disclosed in the present application.

[0053] The present application can be more clearly understood from the following detailed description with reference to the accompanying drawings, in which:

[0054] Figure 1 It is the overall three-dimensional structure diagram of the present invention;

[0055] Figure 2 It is an overall three-dimensional structural diagram of the fixing mechanism section of the present invention;

[0056] Figure 3 For the present invention Figure 2 A magnified structural diagram;

[0057] Figure 4 It is a three-dimensional structural diagram of the working mechanism in the present invention;

[0058] Figure 5 It is a three-dimensional structural diagram of the workpiece and the clamping mechanism in the present invention;

[0059] Figure 6 It is a three-dimensional structural diagram of the fixing mechanism in the present invention;

[0060] Figure 7 It is a three-dimensional structural diagram of the soldering assembly in the present invention;

[0061] Figure 8 It is a three-dimensional structural diagram of the guide wire assembly in the present invention;

[0062] Fig. 9 It is a cross-sectional three-dimensional structural diagram of the guide wire assembly in the present invention;

[0063] Fig.10 For the present invention Fig. 9 The enlarged structure diagram at B;

[0064] Fig.11 It is a three-dimensional structural diagram of the soldering iron assembly in the present invention;

[0065] Fig.12 It is a cross-sectional three-dimensional structural diagram of the soldering iron assembly of the present invention;

[0066] Fig.13It is a three-dimensional structural diagram of the movable ring, the movable component and the auxiliary component in the present invention;

[0067] Fig.14 It is a three-dimensional structural diagram of the lower half of the movable ring and the movable assembly in the present invention in a top view;

[0068] Fig.15 It is a three-dimensional structural diagram of the upper half of the movable ring and the auxiliary components in the present invention in an upward-looking state;

[0069] Fig.16 It is a three-dimensional structural diagram of the auxiliary component located in the cross section of the movable ring in the present invention;

[0070] Fig.17 It is a three-dimensional structural diagram of the movable tube and the movable assembly in the present invention;

[0071] Fig.18 It is a cross-sectional three-dimensional structural diagram of a moving assembly with moving parts in the present invention.

[0072] In the figure: 1. working mechanism; 11. working table; 12. breadboard; 13. screw shaft; 2. workpiece; 21. circuit board; 22. pin header; 3. clamping mechanism; 31. clamping table; 32. screw rod; 33. clamping plate; 4. fixing mechanism; 41. support column; 42. support plate; 43. fixing bolt; 44. soldering assembly; 5. wire guide assembly; 51. wire guide tube; 50. tin wire; 6. soldering iron assembly; 61. fixing ring ; 62. telescopic part; 63. movable ring; 64. movable tube; 65. soldering iron tip; 66. movable part; 7. moving assembly; 71. moving body; 72. moving block; 73. moving part; 8. auxiliary assembly; 81. deformation bag; 82. air inlet pipe; 83. air outlet pipe; 84. ring pipe; 85. exhaust pipe; 86. exhaust head; 80. limit part; 9. feeding assembly; 91. feeding ring; 92. feeding rope; 93. feeding part. DETAILED DESCRIPTION

[0073] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application. Embodiment 1

[0074] The welding device for processing pin headers of intelligent automobile instrument circuit boards includes:

[0075] See also Figure 1-Figure 2 , Figure 4The working mechanism 1 is used for placing the workpiece 2 and improving the welding stability of the workpiece 2. The working mechanism 1 is composed of a workbench 11, a breadboard 12 and a spiral shaft 13. The breadboard 12 is placed on the top of the workbench 11. Specifically, four short columns are arranged on the top of the workbench 11, and short holes are opened at the four corners of the breadboard 12. The breadboard 12 is movably connected with the short columns of the workbench 11 through the short holes, so that the breadboard 12 can be stably fixed above the workbench 11. A long groove is opened on the top of the workbench 11 behind the breadboard 12, and the workbench 11 is movably connected with the spiral shaft 13 through the long groove. One end of the spiral shaft 13 is movably connected with a rotating motor, and the rotating motor can drive the spiral shaft 13 to rotate, thereby providing power for the subsequent horizontal movement of the fixing mechanism 4.

[0076] See also Figure 1-Figure 3 , Figure 5 The workpiece 2 is a part to be processed. The workpiece 2 is composed of a circuit board 21 and a pin header 22. The circuit board 21 is provided with a plurality of holes, and the circuit board 21 is movably connected with one end of the pin header 22 through the holes. The diameter of the hole of the circuit board 21 is larger than that of the pin header 22, which facilitates soldering operations on the circuit board 21 and the pin header 22. The breadboard 12 is provided with a plurality of small holes, and the breadboard 12 is movably connected with the other end of the pin header 22 through the small holes. Figure 1 The breadboard 12 has seven rows of small holes, and the small holes of the breadboard 12 are adapted to the size of the pin headers 22 , which can ensure that the pin headers 22 are stably and vertically arranged on the breadboard 12 , thereby improving the stability of the circuit board 21 and the pin headers 22 during welding.

[0077] See also Figure 1-Figure 2 , Figure 5 , clamping mechanism 3, the top of the workbench 11 located on the left and right sides of the breadboard 12 is provided with a clamping mechanism 3, and the two sides of the workpiece 2 are respectively fitted with the two clamping mechanisms 3, which are used to further improve the welding stability of the workpiece 2. Specifically, the clamping mechanism 3 is composed of a clamping platform 31, a spiral rod 32 and a clamping plate 33. The clamping platform 31 is fixedly connected to the workbench 11, and a threaded hole is opened inside the clamping platform 31. The clamping platform 31 is threadedly sleeved with the spiral rod 32 through the threaded hole. One end of the spiral rod 32 is movably engaged with the clamping plate 33, and the spiral rod 32 and the clamping plate 33 are both located above the breadboard 12, and the clamping plate 33 is fitted with one end of the circuit board 21, that is, the staff manually rotates the spiral rod 32 after completing the sleeve connection of the pin row 22 with the circuit board 21 and the breadboard 12, so that both sides of the circuit board 21 are fitted with the clamping plate 33, further ensuring the stability of the placement of the workpiece 2.

[0078] See also Figure 1-Figure 3 , Figure 6-Figure 12, a fixing mechanism 4 is movably provided in the long groove of the workbench 11, and the fixing mechanism 4 is composed of a support column 41, a support plate 42, a fixing bolt 43 and a soldering assembly 44, which is used for precise welding of the workpiece 2. The lower end of the support column 41 is movably engaged with the long groove of the workbench 11, and the lower end of the support column 41 is threadedly sleeved with the spiral shaft 13. When the spiral shaft 13 rotates, the fixing mechanism 4 can move horizontally in the long groove, thereby realizing continuous welding of the components in the socket of the workpiece 2 one by one. A groove is provided at the upper end of the support column 41, and the support column 41 is movably engaged with the support plate 42 through the groove. A plurality of fixing holes are provided on the wall surface of the support plate 42, and Figure 1 There are six fixing holes in the middle, and the welding position of the soldering assembly 44 on the workpiece 2 can be changed by moving the support plate 42 forward and backward. A through hole is opened at the upper end of the support column 41, and the fixing bolt 43 passes through the through hole of the support column 41 and is sleeved with a fixing hole of the support plate 42. The fixing bolt 43 is used to effectively achieve the stability of the connection between the support column 41 and the support plate 42. The soldering assembly 44 is fixedly sleeved on the front end of the support plate 42, and the soldering assembly 44 is composed of a guide wire assembly 5 and a soldering iron assembly 6.

[0079] See also Figure 1-Figure 3 , Figure 6-Figure 10 , a wire guide assembly 5, a front end of the fixing mechanism 4 is provided with a wire guide assembly 5, and a tin wire 50 is movably provided inside the wire guide assembly 5, for quantitatively conveying the tin wire 50, the wire guide assembly 5 is composed of a wire guide tube 51 and a feeding assembly 9, a guide hole is opened inside the wire guide tube 51, and the wire guide tube 51 is movably connected with the tin wire 50 through the guide hole, the diameter of the guide hole is larger than the diameter of the tin wire 50, so that the tin wire 50 can be conveniently installed in the wire guide tube 51, the wire guide tube 51 is made of high temperature resistant heat-insulating material, which can effectively reduce the temperature influence of the soldering iron assembly 6 on the tin wire 50 in the wire guide tube 51.

[0080] See also Figure 2-Figure 3 , Figure 7-10, feeding assembly 9, two feeding assemblies 9 are arranged inside the wire guide tube 51, and the two feeding assemblies 9 are arranged opposite to each other, and are used to provide power for the downward movement of the tin wire 50. The feeding assembly 9 is composed of a feeding ring 91, a feeding rope 92 and a feeding member 93. A guide groove is provided on the inner wall of the guide hole of the wire guide tube 51, and the length of the guide groove is shorter than that of the guide hole. The wire guide tube 51 is movably connected with the feeding ring 91 through the guide groove, so that the feeding ring 91 can only move in the guide groove, and the inner ring of the feeding ring 91 is movably connected with the tin wire 50, and the feeding ring 91 and the tin wire 50 are interference fit, which effectively clamps the section of the tin wire 50, so that the feeding ring 91 can drive the section of the tin wire 50 to move downward, and a vertical groove is provided inside the wire guide tube 51 above the guide groove, and the wire guide tube 51 is fixedly connected to one end of the vertical spring through the vertical groove, and the other end of the vertical spring is fixedly connected to the top of the feeding ring 91, and the vertical spring is fixedly connected to the top of the feeding ring 91. When 91 is at the highest point of the guide groove, it is in its original state. During the continuous downward movement of the feed ring 91, the vertical spring is stretched, which effectively provides power for the subsequent vertical spring to drive the feed ring 91 to move upward. A guide cavity is opened inside the wire guide tube 51, and the wire guide tube 51 is movably connected to the feed rope 92 through the guide cavity. One end of the feed rope 92 is fixedly connected to the bottom end of the feed ring 91, and the feed member 93 is fixedly clamped on the top edge of the wire guide tube 51, and a winding roller with a motor is provided inside the feed member 93. The other end of the feed rope 92 is fixedly connected to the winding roller of the feed member 93. The staff can effectively drive the feed rope 92 to be retracted and released by controlling the rotation direction of the winding roller in the feed member 93, thereby realizing the up and down movement of the feed ring 91. At the same time, the staff can effectively limit the feeding amount of the tin wire 50 by controlling the rotation speed and starting time of the winding roller in the feed member 93 to ensure that the workpiece 2 is fully welded.

[0081] See also Figure 1-Figure 3 , Figure 6-Figure 7 , Figure 11-Figure 16, a soldering iron assembly 6 is provided on the outside of the guide wire assembly 5, which is used to melt the tin wire 50 and rotate to achieve full welding of the jack position of the workpiece 2. The soldering iron assembly 6 is composed of a fixed ring 61, a telescopic member 62, a movable ring 63, a movable tube 64, a soldering iron head 65, a movable member 66 and a movable assembly 7. The inner ring of the fixed ring 61 is fixedly sleeved with the guide wire tube 51 to provide a support point for the stable movement of the movable ring 63 and other components. The number of the telescopic members 62 is two, and the two telescopic members 62 are arranged oppositely. One end of the telescopic member 62 is fixedly sleeved with the bottom end of the fixed ring 61, and the other end of the telescopic member 62 is fixedly connected with the top end of the movable ring 63, which can be controlled by controlling the telescopic member 62 to extend. The movable ring 63 can be retracted to realize the up and down movement of the movable ring 63, the inner ring of the movable ring 63 is movably connected with the wire guide tube 51, and an installation position is provided for the movable tube 64 and other components. The inner ring of the movable tube 64 is movably connected with the wire guide tube 51, and the top of the movable tube 64 is fitted with the bottom end of the movable ring 63. The soldering iron tip 65 is made of a high-temperature resistant heat-insulating material. When the soldering iron assembly 6 welds the workpiece 2, the lower end surface of the movable tube 64 is lower than the lower end surface of the wire guide tube 51, so that one end of the tin wire 50 extending out of the wire guide tube 51 can be effectively insulated by the movable tube 64, thereby ensuring that the tin wire 50 just extended out will not melt and is effectively restricted in shape by the soldering iron tip 65. The bottom end of the movable tube 64 is fixedly connected to the soldering iron tip 65, and the soldering iron tip A heating component is provided in 65, which can heat up and melt the tin wire 50. U-shaped holes are provided on the two side walls of the soldering iron head 65, and the shape of the U-shaped hole is an inverted U-shape, which can not only enable the wire guide tube 51 to continuously move horizontally without leaving the top surface of the workpiece 2 when encountering the raised pin header 22, but also effectively gather the molten tin liquid, ensuring that the tin liquid can accurately enter the jack of the circuit board 21 as the soldering iron head 65 rotates, so as to achieve full welding of the circuit board 21 and the pin header 22. A movable hole is provided at the lower end of the movable tube 64, and the movable hole is located above the two U-shaped grooves. The movable tube 64 is movably connected with the movable member 66 through the movable hole, and the shape of the movable member 66 is The shape is T-shaped, and one end of the movable part 66 located outside the movable tube 64 is movably connected to the movable tube 64 through a transverse spring. The other end of the movable part 66 located outside the movable tube 64 is provided with an arc groove, and the movable part 66 is clamped with the tin wire 50 through the arc groove. When the soldering iron assembly 6 welds the workpiece 2, the arc groove of the movable part 66 is away from the movable hole, thereby pushing the tin wire 50 to be bent, effectively making one end of the tin wire 50 fit with the inner wall of the soldering iron tip 65, thereby ensuring that the end of the tin wire 50 is melted and drips into the jack of the workpiece 2 through the downward movement of the soldering iron tip 65. The movable part 66 is made of high-temperature resistant heat-insulating material to prevent the movable part 66 from melting when in contact with the tin wire 50 and affecting the bending effect of the tin wire 50.

[0082] See also Figure 2-Figure 3 , Fig.12 , Fig.14 , Figure 17-Figure 18, moving component 7, the movable ring 63 is internally provided with a moving component 7, and the moving component 7 is fixedly connected to the movable tube 64, the number of the moving components 7 is two, and the two moving components 7 are arranged relatively to each other, which are used to realize the self-rotation of the movable tube 64 and the soldering iron head 65, and improve the uniformity and aesthetics of the soldering point of the workpiece 2. The moving component 7 is composed of a moving body 71 and a moving member 73. The bottom end of the movable ring 63 is provided with an annular groove, and the cross-sectional shape of the annular groove is a cross. The movable ring 63 is movably connected to the moving body 71 through the annular groove, and the bottom end of the moving body 71 is fixedly connected to the movable tube 64. The cross-sectional shape of the moving body 71 is T-shaped. The moving body 71 can rotate and move in the annular groove, thereby driving the movable tube 64 to rotate. One of the moving bodies 71 A moving groove is provided on one side, and the moving body 71 is movably connected with the moving member 73 through the moving groove. A rotating motor is provided at one end of the moving member 73, and the opening and closing of the rotating motor in the moving component 7 is synchronized with the motor in the feeding component 9, that is, when the moving member 73 starts and rotates, the feeding member 93 also starts and reels the feeding rope 92. A tooth groove is provided on the wall surface of the movable ring 63 located at the outermost side of the ring groove, and the movable ring 63 engages with the moving member 73 through the tooth groove. When the moving member 73 rotates, the moving member 73 is acted upon by the tooth groove to make the moving component 7 rotate in the ring groove of the movable ring 63, thereby driving the movable tube 64 and the components below it to rotate, thereby realizing uniform discharge of the tin liquid, that is, prompting the tin liquid to flow evenly to various parts of the jack, so that the solder joint is uniform and full. Embodiment 2

[0083] On the basis of the first embodiment, the mobile component 7 further includes:

[0084] See also Figure 2-Figure 3 , Fig.12 , Fig.14 , Figure 17-Figure 18 , a moving block 72 , a top of the moving body 71 is fixedly connected with the moving block 72 , and the top of the moving block 72 is arc-shaped. The moving block 72 is used to effectively squeeze the deformation capsule 81 to achieve reciprocating deformation of the deformation capsule 81 , thereby continuously supplying gas to the breadboard 12 .

[0085] The soldering iron assembly 6 also includes:

[0086] See also Figure 1-Figure 3 , Figure 10-13 , Figure 15-16 , Auxiliary component 8, an auxiliary component 8 is arranged inside the movable ring 63, which is used to cool down the breadboard 12 in time to prevent the breadboard 12 from being overheated and damaged. The auxiliary component 8 is composed of a deformation capsule 81, an air inlet pipe 82, an air outlet pipe 83, a ring pipe 84, an exhaust pipe 85 and an exhaust head 86. The top of the ring groove of the movable ring 63 is fixedly connected with a deformation capsule 81. There are several deformation capsules 81, which are evenly arranged around the movable ring 63. The number of deformation capsules 81 is related to the size of the soldering iron component 6. Fig.15The number of the deformation bags 81 is eighteen. The deformation bags 81 are made of flexible rubber material. When the deformation bags 81 are under pressure, they can be compressed to discharge the gas inside them. When the deformation bags 81 are not under pressure, they rebound due to the influence of their own material and the external gas is transported into the deformation bags 81. The movable ring 63 is internally fixedly sleeved with an air inlet pipe 82, and one end of the air inlet pipe 82 is connected to the outside, and the other end of the air inlet pipe 82 is fixedly connected to the deformation bag 81. A one-way valve is arranged inside the air inlet pipe 82, and the air flow direction of the one-way valve is from the outside to the deformation bag 81, which can effectively replenish gas after the deformation bag 81 is compressed. The movable ring 63 is internally fixedly sleeved with an air outlet pipe 83, and one end of the air outlet pipe 83 is fixedly connected to the deformation bag 81. A one-way valve is arranged inside the air outlet pipe 83, and the air flow direction of the one-way valve is from the deformation bag 81 to the ring pipe 84, which can compress the deformation bag 81 and discharge the gas inside it. The gas of the movable ring 63 is fixedly sleeved with a ring tube 84 inside, and the other end of the air outlet pipe 83 is fixedly connected to the ring tube 84, which can collect the gas discharged from each deformation bag 81 under pressure, and one end of the exhaust pipe 85 is fixedly connected to the ring tube 84. The wall of the exhaust pipe 85 is fitted with the support column 41 through two limit members 80, and the exhaust pipe 85 located above the limit member 80 is made of flexible material and can be deformed as the movable ring 63 moves up and down. The exhaust pipe 85 located below the limit member 80 is made of hard material. After limiting the direction of the exhaust pipe 85, its shape will no longer change, effectively ensuring the accuracy of the gas exhaust direction, and the other end of the exhaust pipe 85 is fixedly connected to the exhaust head 86, and the exhaust head 86 faces the breadboard 12 obliquely rearward, which effectively prompts the exhaust head 86 to cool down the breadboard 12 that has just completed the welding operation, thereby protecting the breadboard 12. Example

[0087] Based on Example 2, please refer to Figure 1-Figure 18 The welding method of the welding device for processing the pin header of the intelligent automobile instrument circuit board comprises the following steps:

[0088] In the first step, the workpiece 2 is installed above the working mechanism 1 and fixed by the clamping mechanism 3 to effectively ensure the stability of the workpiece 2 during welding. Then the position of the fixing mechanism 4 is adjusted, the tin wire 50 is inserted into the guide wire assembly 5, and the soldering iron tip 65 is powered on for preheating to prepare for subsequent precise welding.

[0089] In the second step, the movable ring 63, the movable tube 64 and the soldering iron tip 65 are moved downward by using the telescopic member 62, so that the soldering iron tip 65 covers the socket of the workpiece 2, effectively limiting the range of the tin liquid dripping, and then the feeding member 93 is started, so that the feeding ring 91 drives the tin wire 50 to move downward, so that one end of the tin wire 50 is restricted by the movable member 66 and contacts with the soldering iron tip 65 and melts, so that the molten tin liquid drips along the soldering iron tip 65 into the socket of the workpiece 2.

[0090] The third step is to start the moving part 73 at the same time, so that the moving component 7 drives the movable tube 64 and the soldering iron tip 65 to rotate, so that the tin liquid is evenly flowed to various parts of the socket by the soldering iron tip 65, making the soldering point even and full.

[0091] In the fourth step, when the moving assembly 7 rotates in the annular groove, the moving block 72 effectively squeezes the deformation capsule 81 so that the exhaust pipe 85 continuously discharges gas, thereby cooling the breadboard 12 to prevent the breadboard 12 from being damaged by excessive heat.

[0092] In the fifth step, after the welding of one socket is completed, the fixing mechanism 4 moves horizontally so that the soldering iron tip 65 covers the next socket, and this process is repeated until the welding is completed. Finally, the soldering iron tip 65 is moved upward by the telescopic member 62 so that the soldering iron assembly 6 is away from the workpiece 2.

[0093] The working principle of the method of the present invention is as follows:

[0094] When welding is required, the breadboard 12 is stably placed on the workbench 11, and the lower end of the pin header 22 is sleeved on the breadboard 12, and then the upper end of the pin header 22 is sleeved with the jack of the circuit board 21, and finally the circuit board 21 is clamped and fixed by the clamping mechanism 3, thereby ensuring the stability of the workpiece 2 during welding, and then the fixing mechanism 4 is adjusted to the initial position in the long groove, and the tin wire 50 of a suitable length is inserted into the guide hole of the wire guide tube 51, and is fixed and clamped by the feed ring 91, thereby ensuring that the tin wire 50 can move with the start of the feed component 9, and then the soldering iron tip 65 is powered on for preheating to prepare for the subsequent melting of the tin wire 50. After the preparatory operation is completed, the movable ring 63, the movable tube 64 and the soldering iron tip 65 are moved downward by the telescopic member 62 so that the soldering iron tip 65 covers The socket of the workpiece 2 is formed, thereby effectively limiting the range of tin liquid dripping and avoiding overflow of tin liquid. Then, the feeding member 93 is started, so that the feeding ring 91 drives the tin wire 50 to move downward, so that one end of the tin wire 50 is limited by the movable member 66 and contacts and melts with the inner wall of the soldering iron tip 65, effectively realizing that the molten tin liquid drips into the socket of the workpiece 2 along the soldering iron tip 65. At the same time, the moving member 73 is started, so that the moving component 7 drives the movable tube 64 and the soldering iron tip 65 to rotate, so that the tin liquid is uniformly flowed to various parts of the socket by the soldering iron tip 65, so that the soldering point is uniform and full, and because the number of rotations of the soldering iron component 6 and the feeding amount of the tin wire 50 are uniformly limited, the uniformity of the soldering points in each socket on the circuit board 21 is effectively enhanced, which not only improves the welding quality, but also ensures the beauty of the soldering points.

[0095] When the moving component 7 rotates in the annular groove, the moving block 72 will continuously contact each deformation bag 81, thereby effectively squeezing the deformation bag 81, so that the gas in the deformation bag 81 is finally discharged continuously from the exhaust pipe 85, thereby cooling the breadboard 12, preventing the breadboard 12 from being damaged by excessive heat, and improving the utilization rate of the breadboard 12.

[0096] After the welding of one socket is completed, the fixing mechanism 4 moves horizontally so that the soldering iron tip 65 covers the next socket, and this process is repeated until all the sockets are welded. Finally, the movable member 66 is moved outward and the soldering iron tip 65 is moved upward by using the telescopic member 62, so that the soldering iron assembly 6 is away from the workpiece 2, thereby realizing the welding operation of the workpiece 2.

Claims

1. A welding device for processing pin headers on a circuit board of an intelligent automobile instrument, characterized in that: include: A working mechanism (1) is used to place a workpiece (2) and improve the welding stability of the workpiece (2), the working mechanism (1) comprising a workbench (11) and a breadboard (12), the breadboard (12) being placed on the top of the workbench (11); The workpiece (2) is a part to be processed, the workpiece (2) being composed of a circuit board (21) and a pin header (22), the circuit board (21) being provided with a plurality of plug holes, and the circuit board (21) being movably connected to one end of the pin header (22) through the plug holes, and the diameter of the plug holes of the circuit board (21) being larger than the diameter of the pin header (22); A fixing mechanism (4), wherein the workbench (11) is movably provided with the fixing mechanism (4), and the fixing mechanism (4) comprises a soldering assembly (44) and a support plate (42), and is used for accurately welding the workpiece (2), wherein the soldering assembly (44) is fixedly sleeved on the front end of the support plate (42), and the soldering assembly (44) comprises a guide wire assembly (5) and a soldering iron assembly (6); A wire guide assembly (5), wherein a tin wire (50) is movably arranged inside the wire guide assembly (5) and is used for quantitatively conveying the tin wire (50), and the wire guide assembly (5) comprises a wire guide tube (51) and a feeding assembly (9); A soldering iron assembly (6), the soldering iron assembly (6) being arranged on the outer side of the guide wire assembly (5) and used for melting the tin wire (50) and rotating it to achieve sufficient welding at the insertion hole position of the workpiece (2); The soldering iron assembly (6) comprises: A fixing ring (61), the inner ring of which is fixedly sleeved with the wire guide tube (51); A telescopic member (62), wherein the number of the telescopic members (62) is two, and the two telescopic members (62) are arranged opposite to each other, and one end of the telescopic member (62) is fixedly sleeved with the bottom end of the fixing ring (61); A movable ring (63), wherein the other end of the telescopic member (62) is fixedly connected to the top end of the movable ring (63), and the inner ring of the movable ring (63) is movably sleeved with the wire guide tube (51); A movable tube (64), wherein the inner ring of the movable tube (64) is movably sleeved with the wire guide tube (51), and the top end of the movable tube (64) is in contact with the bottom end of the movable ring (63); A soldering iron tip (65), wherein the bottom end of the movable tube (64) is fixedly connected to the soldering iron tip (65), a heating component is arranged inside the soldering iron tip (65), and U-shaped holes are provided on the two side walls of the soldering iron tip (65), and the shape of the U-shaped holes is an inverted U shape; A movable part (66), wherein a movable hole is formed at the lower end of the movable tube (64), and the movable hole is located above the two U-shaped grooves, the movable tube (64) is movably connected to the movable part (66) through the movable hole, and the movable part (66) is in a T-shape, one end of the movable part (66) located outside the movable tube (64) is movably connected to the movable tube (64) through a transverse spring, and the other end of the movable part (66) located outside the movable tube (64) is formed with an arc groove, and the movable part (66) is connected to the tin wire (50) through the arc groove, and the movable part (66) is made of a heat-insulating material resistant to high temperatures; A movable assembly (7), wherein the movable ring (63) is internally movably provided with the movable assembly (7), and the movable assembly (7) is fixedly connected to the movable tube (64), the number of the movable assemblies (7) is two, and the two movable assemblies (7) are arranged opposite to each other, and are used to realize the self-rotation of the movable tube (64) and the soldering iron tip (65), thereby improving the uniformity and aesthetics of the soldering point of the workpiece (2); The moving component (7) comprises: A movable body (71), wherein a ring groove is formed at the bottom end of the movable ring (63), and the cross-sectional shape of the ring groove is a cross. The movable ring (63) is movably engaged with the movable body (71) via the ring groove, and the bottom end of the movable body (71) is fixedly connected to the movable tube (64), and the cross-sectional shape of the movable body (71) is a T-shaped. A moving block (72), wherein the top end of the moving body (71) is fixedly connected to the moving block (72), and the top end of the moving block (72) is arc-shaped; A moving member (73), wherein a moving groove is provided on one side of one of the moving bodies (71), and the moving body (71) is movably connected to the moving member (73) via the moving groove; a rotating motor is provided at one end of the moving member (73), and the opening and closing of the rotating motor in the moving assembly (7) is synchronized with the motor in the feeding assembly (9); a tooth groove is provided on the wall surface of the movable ring (63) located at the outermost side of the ring groove, and the movable ring (63) is meshed with the moving member (73) via the tooth groove.

2. The welding device for processing pin headers of intelligent automobile instrument circuit boards according to claim 1 is characterized in that: The breadboard (12) is provided with a plurality of small holes, and the breadboard (12) is movably connected to the other end of the header pin (22) through the small holes. The small holes of the breadboard (12) are adapted to the size of the header pin (22), and are used to improve the welding stability of the workpiece (2).

3. The welding device for processing pin headers of intelligent automobile instrument circuit boards according to claim 2 is characterized in that: The tops of the workbenches (11) located on the left and right sides of the breadboard (12) are both provided with clamping mechanisms (3), and the two sides of the workpiece (2) are respectively fitted with the two clamping mechanisms (3) to further improve the welding stability of the workpiece (2).

4. The welding device for processing pin headers of intelligent automobile instrument circuit boards according to claim 3 is characterized in that: The fixing mechanism (4) further comprises: A support column (41) is provided with a long groove at the top of the workbench (11) located behind the breadboard (12), and the workbench (11) is movably sleeved with a screw shaft (13) through the long groove, one end of the screw shaft (13) is movably connected to a rotating motor, the lower end of the support column (41) is movably clamped with the long groove of the workbench (11), and the lower end of the support column (41) is threadedly sleeved with the screw shaft (13); A support plate (42), wherein a groove is provided at the upper end of the support column (41), and the support column (41) is movably connected to the support plate (42) through the groove, and a wall surface of the support plate (42) is provided with a plurality of fixing holes; A fixing bolt (43), wherein a through hole is formed at the upper end of the support column (41), and the fixing bolt (43) passes through the through hole of the support column (41) and is sleeved with a fixing hole of the support plate (42).

5. The welding device for processing pin headers of intelligent automobile instrument circuit boards according to claim 4 is characterized in that: The guide wire assembly (5) comprises: A wire guide tube (51), wherein a guide hole is provided inside the wire guide tube (51), and the wire guide tube (51) is movably connected to the tin wire (50) through the guide hole, the diameter of the guide hole is larger than the diameter of the tin wire (50), and the wire guide tube (51) is made of a high-temperature resistant heat-insulating material; A feeding assembly (9), wherein two feeding assemblies (9) are arranged inside the wire guide tube (51), and the two feeding assemblies (9) are arranged opposite to each other, and are used to provide power for the downward movement of the tin wire (50).

6. The welding device for processing pin headers of intelligent automobile instrument circuit boards according to claim 5, characterized in that: The feeding assembly (9) comprises: A feed ring (91), wherein a guide groove is provided on the inner wall of the guide hole of the wire guide tube (51), and the length of the guide groove is shorter than that of the guide hole, the wire guide tube (51) is movably connected to the feed ring (91) through the guide groove, the inner ring of the feed ring (91) is movably connected to the tin wire (50), and there is an interference fit between the feed ring (91) and the tin wire (50), and a vertical groove is provided inside the wire guide tube (51) located above the guide groove, the wire guide tube (51) is fixedly connected to one end of a vertical spring through the vertical groove, and the other end of the vertical spring is fixedly connected to the top of the feed ring (91); A feed rope (92), wherein a guide cavity is provided inside the wire guide tube (51), and the wire guide tube (51) is movably sleeved with the feed rope (92) through the guide cavity, and one end of the feed rope (92) is fixedly connected to the bottom end of the feed ring (91); A feeding member (93) is fixedly clamped on the top edge of the wire guide tube (51), and a winding roller with a motor is arranged inside the feeding member (93), and the other end of the feeding rope (92) is fixedly connected to the winding roller of the feeding member (93).

7. The welding device for processing pin headers of intelligent automobile instrument circuit boards according to claim 6 is characterized in that: The soldering iron assembly (6) further comprises: An auxiliary component (8) is arranged inside the movable ring (63) and is used to cool the breadboard (12) in a timely manner.

8. The welding device for processing pin headers of intelligent automobile instrument circuit boards according to claim 7 is characterized in that: The auxiliary component (8) comprises: A deformation capsule (81), wherein the top end of the annular groove of the movable ring (63) is fixedly connected with the deformation capsule (81), the deformation capsule (81) is provided in a certain number and is evenly arranged around the movable ring (63), and the deformation capsule (81) is made of a flexible rubber material; An air intake pipe (82), the movable ring (63) is fixedly sleeved with the air intake pipe (82), one end of the air intake pipe (82) is in communication with the outside, the other end of the air intake pipe (82) is fixedly in communication with the deformation bag (81), a one-way valve is provided inside the air intake pipe (82), and the airflow direction of the one-way valve is from the outside to the deformation bag (81); An air outlet pipe (83), the movable ring (63) is fixedly sleeved with the air outlet pipe (83), one end of the air outlet pipe (83) is fixedly connected to the deformation bag (81), a one-way valve is arranged inside the air outlet pipe (83), and the air flow direction of the one-way valve is from the deformation bag (81) to the ring pipe (84); An annular tube (84), the interior of the movable ring (63) is fixedly sleeved with the annular tube (84), and the other end of the air outlet pipe (83) is fixedly connected to the annular tube (84); An exhaust pipe (85), one end of the exhaust pipe (85) being fixedly connected to the ring pipe (84), a wall surface of the exhaust pipe (85) being fitted to the support column (41) via two stoppers (80), the exhaust pipe (85) located above the stoppers (80) being made of a flexible material, and the exhaust pipe (85) located below the stoppers (80) being made of a hard material; An exhaust head (86), the other end of the exhaust pipe (85) is fixedly connected to the exhaust head (86), and the exhaust head (86) faces the breadboard (12) obliquely to the rear.

9. The welding method of the welding device for processing pin headers of intelligent automobile instrument circuit boards according to claim 8, characterized in that: The following steps are involved: The first step is to install the workpiece (2) above the working mechanism (1) and clamp it with the clamping mechanism (3), then adjust the position of the fixing mechanism (4), insert the tin wire (50) into the wire guide assembly (5), and energize the soldering iron tip (65) for preheating; In the second step, the movable ring (63), the movable tube (64) and the soldering iron tip (65) are moved downward by using the telescopic member (62) so that the soldering iron tip (65) covers the insertion hole of the workpiece (2), and then the feeding member (93) is started so that the feeding ring (91) drives the tin wire (50) to move downward, so that one end of the tin wire (50) is restricted by the movable member (66) and contacts and melts with the soldering iron tip (65), so that the molten tin liquid drips along the soldering iron tip (65) into the insertion hole of the workpiece (2); The third step is to start the moving part (73) at the same time, so that the moving component (7) drives the movable tube (64) and the soldering iron tip (65) to rotate, so that the tin liquid is evenly flowed to various parts of the socket by the soldering iron tip (65), so that the soldering point is evenly full; In the fourth step, when the moving assembly (7) rotates in the annular groove, the moving block (72) effectively squeezes the deformation capsule (81) so that the exhaust pipe (85) continuously discharges gas, thereby cooling the breadboard (12); In the fifth step, after the welding of one socket is completed, the fixing mechanism (4) moves horizontally so that the soldering iron tip (65) covers the next socket, and this process is repeated until the welding is completed. Finally, the soldering iron tip (65) is moved upward using the telescopic member (62) so that the soldering iron assembly (6) is away from the workpiece (2).

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