Electronic component welding device

Abstract

The invention discloses an electronic component welding device, and particularly relates to the technical field of welding device.The electronic component welding device comprises a base, a control table is fixedly mounted at the upper end of the base, a conveying structure is fixedly mounted in the middle of the upper end of the base, a supporting table is fixedly connected to the middle of the upper end of the base, and wire feeding structures are fixedly connected to the upper end of the supporting table in a bilateral symmetry mode; the upper ends of the two wire feeding structures are jointly provided with a welding structure. According to the electronic element welding device, the control table is matched with the conveying structure and the supporting table to feed a plate into the range of the welding structure and the wire feeding structure, and the welding structure is driven to act under the action of a sensor arranged in a check block to weld a wire and the electronic element plate together; and through the action of the wire feeding structure in the reset process of the welding structure, a new wire is fed into a to-be-welded area, subsequent continuous welding machining of other elements is facilitated, manual wire arrangement and placement are not needed, continuous machining is achieved, and the welding efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of welding devices, and particularly relates to a welding device for electronic components. Background Art

[0002] With the rapid development of electronic technology, electronic devices are becoming increasingly complex and precise. As the basic components of electronic devices, the welding quality of electronic components is directly related to the performance and reliability of the entire device. During the manufacturing process of electronic devices, electronic components usually need to be welded onto circuit boards to achieve electrical connection and signal transmission. As an important carrier for connecting electronic components to circuit boards or other components, the welding method and quality of wires are equally crucial.

[0003] Chinese Patent Publication No. CN214518329U discloses a welding device for electronic components, including a housing. A motor housing is fixedly connected to the upper end surface of the housing. Rotating motors are fixedly connected to the top ends of the left and right sides inside the motor housing. A transmission shaft is rotatably connected to the front end of the rotating motor. An electric telescopic rod is fixedly connected to the top end of the middle inside the motor housing. A welding gun is fixedly connected to the top end of the electric telescopic rod. A threaded rod is fixedly connected to the top end of the transmission shaft.

[0004] There are obvious defects in the welding method of existing welding devices for wires and components. Since basically the method of manually arranging and aligning wires for welding is adopted, the efficiency is relatively low. The speed of manual operation is difficult to match that of automated equipment. In large-scale production, this method will become a bottleneck in the entire production process, restricting the improvement of the overall production efficiency. At the same time, the error tolerance rate of manual welding is relatively low. During the process of wire alignment and welding by operators, once situations such as hand shaking and inaccurate alignment occur, it may lead to welding defects such as false soldering and short circuit. Summary of the Invention

[0005] The main purpose of the present invention is to provide a welding device for electronic components, which can effectively solve the problems that the existing welding device has relatively low efficiency, error tolerance rate and high defective product rate in the welding method of basically manually arranging and aligning wires for welding of wires and components.

[0006] To achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0007] A welding device for electronic components, including a base. A console is fixedly installed on the upper end of the base. A conveying structure is fixedly installed in the middle of the upper end of the base. A support platform is fixedly connected to the middle of the upper end of the base. Wire feeding structures are symmetrically and fixedly connected to the left and right sides of the upper end of the support platform. A welding structure is jointly arranged above the two wire feeding structures.

[0008] Preferably, the conveying structure includes four bearing brackets fixedly connected to the upper end of the base in a rectangular distribution. A pulley is rotatably connected to the inner surfaces of two bearing brackets on the same side. One end of the bearing bracket away from the pulley is fixedly connected to a first motor that is drivingly connected to the pulley. The outer surfaces of the two pulleys are both wound and connected with conveyor belts symmetrically left and right. A number of baffles are fixedly connected to the outer surfaces of the two conveyor belts in a curved distribution.

[0009] Preferably, a damping groove is formed in the part of the upper end of the support table between the two conveyor belts. A first spring is fixedly connected to the bottom wall of the inner surface of the damping groove. The upper end of the first spring is fixedly connected to a damping block that is slidably connected to the inner surface of the damping groove. The upper end of the damping block is fixedly connected to a blocking block that penetrates the top wall of the inner surface of the damping groove and extends to the upper end of the support table.

[0010] Preferably, the wire feeding structure includes a wire storage box fixedly connected to the upper end of the support table. A solder storage box is fixedly connected to the rear end of the wire storage box. A wire reel is fixedly installed on one side of the inner surface of the wire storage box away from the blocking block. A wire handling assembly fixedly connected to the welding structure is arranged on one side of the inner surface of the wire storage box close to the blocking block. Friction wheels are rotatably connected to the bottom wall of the inner surface of the wire storage box symmetrically left and right. A second motor that is drivingly connected to the friction wheel on the side away from the blocking block is fixedly installed on the bottom wall of the inner surface of the wire storage box.

[0011] Preferably, the welding structure includes electric telescopic rods fixedly connected to the upper ends of the wire storage boxes on both sides. The upper ends of the piston rods of the output ends of the two electric telescopic rods are fixedly connected together with a top plate. A spring buffer rod is fixedly connected to the middle of the lower end of the top plate. A rubber pressing block is fixedly connected to the lower end of the spring buffer rod. An L-shaped linkage rod corresponding to the position of the blocking block is fixedly connected to the front part of the outer surface of the piston rod of the output end of the spring buffer rod.

[0012] Preferably, connection blocks are fixedly connected to the left and right of the lower end of the top plate. U-shaped blocks are fixedly connected to the lower ends of the two connection blocks. Soldering iron heads are fixedly connected to the lower ends of the two U-shaped blocks on the side close to each other. The lower ends of the two U-shaped blocks on the side away from each other are fixedly connected to the adjacent wire handling assemblies.

[0013] Preferably, the wire handling assembly includes a sliding plate fixedly connected to the adjacent U-shaped block and slidably connected to the inner surface of the wire storage box. Four spring rods are fixedly connected to the lower end of the sliding plate in a rectangular distribution. The piston rods of the output ends of the four spring rods are fixedly connected together with a fixing plate fixedly connected to the inner surface of the wire storage box. Four buffer springs are fixedly connected to the lower end of the sliding plate in a rectangular distribution. Comb-shaped plates are fixedly connected to the lower ends of two buffer springs on the same side. The lower ends of the two comb-shaped plates both penetrate the upper end of the fixing plate and extend to the lower end of the fixing plate.

[0014] Preferably, a relay spring is fixedly connected to the middle of the upper end of the fixed plate. The upper end of the relay spring is fixedly connected to a U-shaped cutting knife. The lower end of the U-shaped cutting knife penetrates through the upper end of the fixed plate and extends to the lower end of the fixed plate. A through communication port is opened on the bottom wall of the inner surface of the wire storage box corresponding to the position of the fixed plate. A plurality of wire stripping grooves are opened on the lower side of the U-shaped cutting knife close to the winding shaft.

[0015] Preferably, a tin winding shaft is rotatably connected to the inner surface of the tin storage box. The tin storage box is L-shaped, and a cross-shaped sliding groove is opened at the lower end of its horizontal part. A tin feeding component is slidably connected to the inner surface of the cross-shaped sliding groove. One end of the wire storage box close to the stopper is fixedly connected to a guiding bracket corresponding to the height of the cross-shaped sliding groove. A return spring fixedly connected to the tin feeding component is fixedly connected to the rear part of the inner surface of the cross-shaped sliding groove.

[0016] Preferably, the tin feeding component includes a slider one slidably connected to the inner surface of the cross-shaped sliding groove. The upper end of the slider one is fixedly connected to an arc-shaped supporting block. A plurality of squamous rubber blocks are fixedly connected in a circular distribution on the inner surface of the arc-shaped supporting block. A spring two is fixedly connected to the top wall of the inner surface of the slider one. The lower end of the spring two is fixedly connected to a slider two slidably connected to the inner surface of the slider one. A wedge-shaped block is fixedly connected to the front part of the inner surface of the cross-shaped sliding groove. A communication groove communicating with the rear end and corresponding to the position of the wedge-shaped block is opened at the front end of the slider two.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention cooperates the console with the conveying structure and the supporting table to send the plate into the range of the welding structure and the wire feeding structure, and drives the welding structure to act through the sensor arranged in the stopper to weld the wire and the electronic component plate together. And through the action of the wire feeding structure, during the reset process of the welding structure, a new wire is sent into the area to be welded, which is convenient for the continuous welding processing of other components in the follow-up, without manual wire arranging and placing, realizing continuous processing and improving the welding efficiency.

[0019] 2. Through the action of the welding structure arranged at the upper ends of the wire feeding structures on both sides, after the electronic component plate is blocked by the stopper, the console controls the electric telescopic rod to retract, and thus drives the spring buffer rod to descend through the interaction between the electric telescopic rod and the top plate. Therefore, the electronic component plate is pressed and fixed in the relative position by the cooperation of the spring buffer rod and the rubber pressing block. Synchronously, the soldering tin, the wire and the electronic component plate are welded together by the soldering iron head installed under the connecting block and the U-shaped block, realizing automatic welding and improving the processing efficiency.

[0020] 3. Through the cooperation of the U-shaped block and the wire processing component, the present invention drives the sliding plate and the comb-shaped plate to descend during the welding process, and presses and fixes the wire through the action of the comb-shaped plate. At the same time, the pressing of the sliding plate on the U-shaped cutting knife drives the two cutting edges of the U-shaped cutting knife to descend. One cutting edge cuts the wire, which facilitates the electronic component to continue to be transported backward along with the conveyor belt and the baffle after welding. The skin of the subsequent cable is peeled off through the wire stripping groove opened by the other cutting edge. At the same time, through the cooperation of the second motor and the friction wheel, a new wire is fed into the welding area during the backward transportation of the electronic component, realizing continuous processing.

[0021] 4. By the action of the solder feeding component, when the electronic component board passes by, the solder wire wound on the solder spool is fed under the soldering iron head. Through the interaction between the communication groove opened on the second slider and the wedge block, it is separated from the board, and the first slider is driven to reset through the cooperation of the scaly rubber block provided on the arc-shaped support block and the return spring, realizing automatic solder feeding, simplifying the welding process, and thus improving the welding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is the schematic diagram of the overall structure of the present invention;

[0023] Figure 2 is the schematic diagram of the structure of the conveying structure of the present invention;

[0024] Figure 3 is the schematic diagram of the cross-sectional structure of the support platform of the present invention;

[0025] Figure 4 is the schematic diagram of the positional relationship between the L-shaped linkage rod and the stopper of the present invention;

[0026] Figure 5 is the schematic diagram of the structure of the welding structure of the present invention;

[0027] Figure 6 is the schematic diagram of the cross-sectional structure of the wire storage box of the present invention;

[0028] Figure 7 is the schematic diagram of the structure of the wire processing component of the present invention;

[0029] Figure 8 is the schematic diagram of the top view structure of the wire processing component of the present invention;

[0030] Figure 9 is the schematic diagram of the cross-sectional structure of the solder storage box of the present invention;

[0031] Figure 10 is the schematic diagram of the structure of the solder feeding component of the present invention.

[0032] In the figure: 1. Base; 2. Console; 3. Conveyor structure; 31. Bearing bracket; 32. Conveyor belt; 33. Motor 1; 34. Pulley; 35. Baffle; 4. Support platform; 41. Damping groove; 42. Spring 1; 43. Damping block; 44. Stop block; 5. Wire feeding structure; 51. Wire storage box; 52. Solder storage box; 521. Solder reel shaft; 522. Cross chute; 523. Return spring; 524. Solder feeding component; 5241. Wedge block; 5242. Slide block 1; 5243. Scaly rubber block; 5244. Arc-shaped support block; 5245. Spring 2; 5246. Slide block 2; 5247. Connecting groove; 525. Guide bracket; 53. Wire processing component; 531. Slide plate; 532. Spring rod; 533. Fixed plate; 534. Comb-shaped plate; 535. U-shaped cutting knife; 536. Buffer spring; 537. Stripping groove; 538. Relay spring; 54. Wire reel; 55. Motor 2; 56. Friction wheel; 6. Welding structure; 61. Top plate; 62. Connecting block; 63. Electric telescopic rod; 64. U-shaped block; 65. Soldering iron tip; 66. Spring buffer rod; 67. L-shaped linkage rod; 68. Rubber pressing block. Detailed implementation mode

[0033] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with the specific implementation mode.

[0034] Example 1, as Figure 1 shown, an electronic component welding device includes a base 1, a console 2 is fixedly installed at the upper end of the base 1, a conveyor structure 3 is fixedly installed in the middle of the upper end of the base 1, a support platform 4 is fixedly connected to the middle of the upper end of the base 1, wire feeding structures 5 are symmetrically and fixedly connected to the left and right sides of the upper end of the support platform 4, and a welding structure 6 is arranged on the upper ends of the two wire feeding structures 5 together.

[0035] It should be particularly noted that the above console 2 is a conventional controller, and this structure has been widely used in the prior art. In the present invention, only its functions of starting and stopping the control element device and heating are utilized, and its internal structure, operating principle, wiring and control method will not be elaborated further.

[0036] Furthermore, in order to realize the transportation of electronic components, refer to Figure 2 , the conveyor structure 3 includes four bearing brackets 31 fixedly connected to the upper end of the base 1 in a rectangular distribution. The inner surfaces of the two bearing brackets 31 on the same side are jointly rotatably connected with a pulley 34. One end of one bearing bracket 31 far from the pulley 34 is fixedly connected with a motor 1 33 drivingly connected to the pulley 34. The outer surfaces of the two pulleys 34 are both wound and connected with conveyor belts 32 symmetrically left and right. A number of baffles 35 are fixedly connected to the outer surfaces of the two conveyor belts 32 in a curved distribution.

[0037] The motor 1 drives the pulley 34 to rotate, and the cooperation between the pulley 34 and the conveyor belt 32 drives the baffle 35 to move along a curved path on the conveyor belt 32, thereby pushing the electronic component board above the conveyor belt 32 to move, and then realizing the conveying of the electronic component board.

[0038] Furthermore, to achieve the positioning of the electronic components, refer to Figure 3 , a damping groove 41 is provided in the upper part of the support table 4 located between the two conveyor belts 32. A first spring 42 is fixedly connected to the bottom wall of the inner surface of the damping groove 41. The upper end of the first spring 42 is fixedly connected to a damping block 43 that is slidably connected to the inner surface of the damping groove 41. The upper end of the damping block 43 is fixedly connected to a stop block 44 that penetrates the top wall of the inner surface of the damping groove 41 and extends to the upper end of the support table 4.

[0039] When the electronic component board reaches the position of the stop block 44 under the push of the baffle 35, it will be blocked by the stop block 44. A contact sensor connected to the control console 2 is also installed on the stop block 44, which is used to control the start and stop of the motor 1, so as to avoid damage to the electronic component board above the conveyor belt 32 caused by the collision between the baffle 35 and the stop block 44. Synchronously, this sensor is also used to drive the welding structure 6 and the wire feeding structure 5 to act sequentially to weld the wire and the electronic component board.

[0040] During the operation of this embodiment, the control console 2 cooperates with the conveying structure 3 and the support table 4 to send the board into the range of the welding structure 6 and the wire feeding structure 5. The sensor set in the stop block 44 drives the welding structure 6 to act to weld the wire and the electronic component board together. During the reset process of the welding structure 6, the wire feeding structure 5 sends a new wire into the area to be welded, which is convenient for the continuous welding processing of other components in the future. There is no need for manual wire arrangement and placement, realizing continuous processing and improving the welding efficiency.

[0041] Embodiment 2: Based on Embodiment 1, through the action of the welding structure 6 provided at the upper ends of the wire feeding structures 5 on both sides, after the electronic component board is blocked by the stop block 44, the control console 2 controls the electric telescopic rod 63 to retract, and thus drives the spring buffer rod 66 to descend through the interaction between the electric telescopic rod 63 and the top plate 61. Therefore, the spring buffer rod 66 and the rubber pressing block 68 cooperate to press and fix the electronic component board in a relative position. Synchronously, the soldering iron head 65 installed below the connecting block 62 and the U-shaped block 64 welds the solder, wire and the electronic component board together, realizing automatic welding and improving the processing efficiency;

[0042] Synchronized. Through the cooperation of the U-shaped block 64 and the wire processing component 53, during the welding process, the sliding plate 531 and the comb-shaped plate 534 are driven to descend. Through the action of the comb-shaped plate 534, the wire is pressed and fixed. At the same time, the U-shaped cutting knife 535 is driven to descend by the pressure of the sliding plate 531 on both sides of the U-shaped cutting knife 535. The wire is cut off by one side edge, which facilitates the electronic components to continue to be transported backward along with the conveyor belt 32 and the baffle 35 after welding. The skin of the subsequent cable is stripped by the wire stripping groove 537 opened by the other side edge. At the same time, through the cooperation of the second motor 55 and the friction wheel 56, a new wire is fed into the welding area during the backward transportation of the electronic components, realizing continuous processing.

[0043] Specifically, to achieve the limiting and welding of electronic components, refer to Figure 4 and Figure 5 , the welding structure 6 includes electric telescopic rods 63 fixedly connected to the upper ends of the two wire storage boxes 51 on both sides. The upper ends of the piston rods of the output ends of the two electric telescopic rods 63 are fixedly connected together with a top plate 61. The middle part of the lower end of the top plate 61 is fixedly connected with a spring buffer rod 66. The lower end of the spring buffer rod 66 is fixedly connected with a rubber pressing block 68. The front part of the outer surface of the piston rod of the output end of the spring buffer rod 66 is fixedly connected with an L-shaped linkage rod 67 corresponding to the position of the block 44.

[0044] Furthermore, to achieve the welding of electronic components, refer to Figure 4 and Figure 5 , the left and right sides of the lower end of the top plate 61 are symmetrically and fixedly connected with connecting blocks 62. The lower ends of the two connecting blocks 62 are both fixedly connected with U-shaped blocks 64. The lower ends of the two U-shaped blocks 64 on the side close to each other are both fixedly connected with soldering iron heads 65. The lower ends of the two U-shaped blocks 64 on the side far from each other are both fixedly connected with the adjacent wire processing component 53.

[0045] The electric telescopic rod 63 is a traditional motor-driven telescopic rod that can drive other components installed on its piston rod to move up and down. By the action of the electric telescopic rod 63, the top plate 61 is driven to move up and down, and then the spring buffer rod 66 and the rubber pressing block 68 are driven to move up and down. During the downward movement of the spring buffer rod 66 and the rubber pressing block 68, the rubber pressing block 68 first contacts the electronic component board and presses above the board. The board is fixed in the welding area through the interaction of the support table 4, the conveyor belt 32, and the rubber pressing block 68;

[0046] The connecting block 62 and the U-shaped block 64 will synchronously follow the top plate 61 to descend and press the soldering iron tip 65 so that it presses the solder provided by the tin storage box 52 and the wire provided by the wire storage box 51 to gradually contact the electronic component board, and thereby utilize the high temperature of the soldering iron tip 65 to melt the solder and attach it to the corresponding pin through the tension of the molten solder, so that after the soldering iron tip 65 rises and detaches, the solder solidifies and fixes the wire on the electronic component board.

[0047] Furthermore, the block 44 is pressed into the damping groove 41 by the action of the L-shaped linkage rod 67, and the block 44 is used to limit the plate. When the welding is completed and the L-shaped linkage rod 67 rises, due to the resistance of the damping groove 41 and the damping block 43, the block 44 will not be reset quickly, but will rise slowly. At this time, the electronic component can move backward under the action of the motor 33 and the conveyor belt 32, and the wires cut by the wire processing assembly 53 can be pulled out from the wire storage box 51 to enter the next processing step.

[0048] Further, for welding and conveying connecting wires for electronic components, see Figure 6 The wire feeding structure 5 includes a wire storage box 51 fixedly connected to the upper end of the support platform 4, a tin storage box 52 fixedly connected to the rear end of the wire storage box 51, a winding shaft 54 ​​is fixedly installed on the side of the inner surface of the wire storage box 51 away from the block 44, a wire processing component 53 fixedly connected to the welding structure 6 is provided on the side of the inner surface of the wire storage box 51 close to the block 44, a friction wheel 56 is fixedly connected to the bottom wall of the inner surface of the wire storage box 51 for symmetrical rotation, and a motor 2 55 is fixedly installed on the bottom wall of the inner surface of the wire storage box 51 for transmission connection with the friction wheel 56 on the side away from the block 44.

[0049] The wire to be welded is wound on the winding shaft 54. Through the guiding effect of the wire processing assembly 53 and the friction wheel 56, when the motor 2 55 is started, the friction wheel 56 rotates to drive the wire to move in the direction of the soldering iron head 65, and enters the bottom of the soldering iron head 65 through the wire storage box 51;

[0050] The number and arrangement spacing of the winding shafts 54 are determined according to actual production requirements, and the specific numerical values ​​of the specific number, spacing, and size are not described in detail in the present invention.

[0051] Further, in order to cooperate with the action of the U-shaped block 64, the connecting wire is now sent to the welding position, see Figure 7 and Figure 8, the wire processing component 53 includes a sliding plate 531 fixedly connected to the adjacent U-shaped block 64 and slidably connected to the inner surface of the wire storage box 51. Four spring rods 532 are fixedly connected to the lower end of the sliding plate 531 in a rectangular distribution. The piston rods at the output ends of the four spring rods 532 are jointly fixedly connected to a fixing plate 533 fixedly connected to the inner surface of the wire storage box 51. Four buffer springs 536 are fixedly connected to the lower end of the sliding plate 531 in a rectangular distribution. The lower ends of two buffer springs 536 on the same side are jointly fixedly connected to a comb-shaped plate 534. The lower ends of the two comb-shaped plates 534 both penetrate through the upper end of the fixing plate 533 and extend to the lower end of the fixing plate 533.

[0052] Furthermore, to achieve the cutting and stripping of the connecting wire, refer to Figure 7 and Figure 8 , a relay spring 538 is fixedly connected to the middle of the upper end of the fixing plate 533. The upper end of the relay spring 538 is fixedly connected to a U-shaped cutting tool 535. The lower end of the U-shaped cutting tool 535 penetrates through the upper end of the fixing plate 533 and extends to the lower end of the fixing plate 533. A through communication port is opened on the bottom wall of the inner surface of the wire storage box 51 corresponding to the position of the fixing plate 533. A plurality of wire stripping grooves 537 are opened on the lower side of the U-shaped cutting tool 535 near the winding shaft 54.

[0053] When the U-shaped block 64 is pressed down, the sliding plate 531 slides downward in the wire storage box 51, and the comb-shaped plate 534 is pressed to move downward through the buffer spring 536 and is pressed above the wire. The comb-shaped plate 534 corresponds to the friction wheel 56 in the vertical direction to clamp and fix the wire. The U-shaped cutting tool 535 located between the two comb-shaped plates 534 moves downward under the pressure of the sliding plate 531. Its shape is similar to an inverted U shape. Both vertical parts are cutting tools with sharp edges. The side close to the soldering iron head 65 is the cutting part, which can cut the wire. The relative length of the side far from the soldering iron head 65 is shorter and is provided with wire stripping grooves 537, which is the wire stripping part. It can strip the cable skin and send it into the support table 4 during the downward movement;

[0054] When the sliding plate 531 rises, the second motor 55 is started. The skinned cable moves in the direction of the soldering iron head 65 under the action of the friction wheel 56 and finally enters below the soldering iron head 65, waiting for the next welding, reducing manual sorting and placement, and thus improving the welding processing efficiency.

[0055] Embodiment 3: On the basis of Embodiment 2, this embodiment further utilizes the function of the solder feeding component 524 to feed the solder wire wound on the solder spool 521 below the soldering iron head 65 when the electronic component board passes by. Through the interaction between the communication groove 5247 opened on the slider 5246 and the wedge block 5241, it is separated from the board and drives the slider 5242 to reset through the cooperation of the scaly rubber block 5243 provided on the arc-shaped support block 5244 and the return spring 523, realizing automatic solder feeding, simplifying the welding process, and thus improving the welding efficiency.

[0056] Specifically, to achieve the conveyance of solder to the welding position, refer to Figure 9 , a reel shaft 521 is rotatably connected to the inner surface of the solder storage box 52. The solder storage box 52 is L-shaped, and a cross-shaped chute 522 is opened at the lower end of its horizontal part. A solder feeding component 524 is slidably connected to the inner surface of the cross-shaped chute 522. One end of the wire storage box 51 close to the stopper 44 is fixedly connected to a guiding bracket 525 corresponding to the height of the cross-shaped chute 522. A return spring 523 fixedly connected to the solder feeding component 524 is fixedly connected to the rear part of the inner surface of the cross-shaped chute 522.

[0057] When the electronic component board passes through the solder feeding component 524 below the wire storage box 51, it will drive the solder feeding component 524 to slide in the cross-shaped chute 522, and thereby drive the solder wire to move forward through the action of the solder feeding component 524. Synchronously, the solder wire is guided under the soldering iron head 65 through the action of the guiding bracket 525 and waits for welding;

[0058] The main function of the return spring 523 is to drive the solder feeding component 524 to reset after the electronic component is separated from the solder feeding component 524.

[0059] Further, to achieve the conveyance of the solder wire, refer to Figure 10 , the solder feeding component 524 includes a first slider 5242 slidably connected to the inner surface of the cross-shaped chute 522. An arc-shaped support block 5244 is fixedly connected to the upper end of the first slider 5242. A number of scale-shaped rubber blocks 5243 are fixedly connected to the inner surface of the arc-shaped support block 5244 in a circular distribution. A second spring 5245 is fixedly connected to the top wall of the inner surface of the first slider 5242. The lower end of the second spring 5245 is fixedly connected to a second slider 5246 slidably connected to the inner surface of the first slider 5242. A wedge-shaped block 5241 is fixedly connected to the front part of the inner surface of the cross-shaped chute 522. A communication groove 5247 communicating with the rear end and corresponding to the position of the wedge-shaped block 5241 is opened at the front end of the second slider 5246.

[0060] The above-mentioned scale-shaped rubber blocks 5243 are fish-scale-shaped friction blocks with one end fixed and the other end floating. When they are reversely stressed, the friction force is large, which can drive the solder wire to move in the cross-shaped chute 522 and gradually convey it in the direction of the soldering iron head 65;

[0061] However, when the first slider 5242 moves to the front part of the cross-shaped chute 522, due to the action of the wedge-shaped block 5241 and the communication groove 5247, the second slider 5246 floats up. At this time, the second slider 5246 is separated from the electronic component board. Under the traction of the return spring 523, the first slider 5242 will move towards the rear part of the cross-shaped chute 522. At this time, the scale-shaped rubber blocks 5243 are forwardly stressed and the friction force is very small, and they will not drive the solder wire to move backward.

[0062] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and what is described in the above embodiments and the specification is only to illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will also have various changes and improvements, and these changes and improvements fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. An electronic component welding device, comprising a base (1), a control console (2) being fixedly mounted on the upper end of the base (1), characterized in that: A conveying structure (3) is fixedly installed in the middle of the upper end of the base (1), a support platform (4) is fixedly connected to the middle of the upper end of the base (1), a wire feeding structure (5) is symmetrically fixedly connected to the upper end of the support platform (4), and a welding structure (6) is commonly provided at the upper ends of the two wire feeding structures (5).

2. An electronic component welding device according to claim 1, characterized in that: The conveying structure (3) comprises four bearing brackets (31) which are rectangularly distributed and fixedly connected to the upper end of the base (1); the inner surfaces of two bearing brackets (31) on the same side are connected to a pulley (34) for common rotation; one end of one of the bearing brackets (31) away from the pulley (34) is fixedly connected to a motor (33) which is transmission-connected to the pulley (34); the outer surfaces of the two pulleys (34) are both connected to conveying belts (32) which are symmetrically wound around them; and the outer surfaces of the two conveying belts (32) are both fixedly connected to a plurality of baffles (35) which are distributed in a curve.

3. An electronic component welding device according to claim 2, characterized in that: A damping groove (41) is provided at the upper end of the support platform (4) between the two conveyor belts (32); a spring (42) is fixedly connected to the bottom wall of the inner surface of the damping groove (41); a damping block (43) slidably connected to the inner surface of the damping groove (41) is fixedly connected to the upper end of the spring (42); and a stopper (44) is fixedly connected to the upper end of the damping block (43) and passes through the top wall of the inner surface of the damping groove (41) and extends to the upper end of the support platform (4).

4. An electronic component welding device according to claim 3, characterized in that: The wire feeding structure (5) comprises a wire storage box (51) fixedly connected to the upper end of the support platform (4), a tin storage box (52) fixedly connected to the rear end of the wire storage box (51), a wire winding shaft (54) fixedly installed on the side of the inner surface of the wire storage box (51) away from the stopper (44), a wire processing assembly (53) fixedly connected to the welding structure (6) is arranged on the side of the inner surface of the wire storage box (51) close to the stopper (44), a friction wheel (56) fixedly connected to the bottom wall of the inner surface of the wire storage box (51) for symmetrical rotation, and a second motor (55) drivingly connected to the friction wheel (56) on the side away from the stopper (44) is fixedly installed on the bottom wall of the inner surface of the wire storage box (51).

5. The electronic component welding device according to claim 4, characterized in that: The welding structure (6) comprises an electric telescopic rod (63) fixedly connected to the upper ends of the wire storage boxes (51) on both sides; the upper ends of the piston rods at the output ends of the two electric telescopic rods (63) are fixedly connected to a top plate (61); the middle part of the lower end of the top plate (61) is fixedly connected to a spring buffer rod (66); the lower end of the spring buffer rod (66) is fixedly connected to a rubber compression block (68); and the front of the outer surface of the piston rod at the output end of the spring buffer rod (66) is fixedly connected to an L-shaped linkage rod (67) corresponding to the position of the stopper (44).

6. An electronic component welding device according to claim 5, characterized in that: The lower end of the top plate (61) is symmetrically fixedly connected to a connecting block (62), the lower ends of the two connecting blocks (62) are both fixedly connected to a U-shaped block (64), the lower ends of the two U-shaped blocks (64) on the sides close to each other are both fixedly connected to a soldering iron head (65), and the lower ends of the two U-shaped blocks (64) on the sides away from each other are both fixedly connected to an adjacent wire processing assembly (53).

7. An electronic component welding device according to claim 6, characterized in that: The wire processing assembly (53) comprises a sliding plate (531) fixedly connected to an adjacent U-shaped block (64) and slidably connected to the inner surface of the wire storage box (51); four spring rods (532) are fixedly connected to the lower end of the sliding plate (531) in a rectangular distribution; piston rods at the output ends of the four spring rods (532) are commonly fixedly connected to a fixed plate (533) fixedly connected to the inner surface of the wire storage box (51); four buffer springs (536) are fixedly connected to the lower end of the sliding plate (531) in a rectangular distribution; the lower ends of two buffer springs (536) on the same side are commonly fixedly connected to a comb-shaped plate (534); the lower ends of the two comb-shaped plates (534) both penetrate the upper end of the fixed plate (533) and extend to the lower end of the fixed plate (533).

8. An electronic component welding device according to claim 7, characterized in that: A relay spring (538) is fixedly connected to the middle of the upper end of the fixed plate (533), and a U-shaped cutting knife (535) is fixedly connected to the upper end of the relay spring (538). The lower end of the U-shaped cutting knife (535) penetrates the upper end of the fixed plate (533) and extends to the lower end of the fixed plate (533). A through communication opening is provided at a position of the bottom wall of the inner surface of the wire storage box (51) corresponding to the fixed plate (533), and a plurality of wire stripping grooves (537) are provided at the lower end of the U-shaped cutting knife (535) on a side close to the winding shaft (54).

9. The electronic component welding device according to claim 4, characterized in that: The inner surface of the tin storage box (52) is rotatably connected to a tin winding shaft (521); the tin storage box (52) is L-shaped and a cross slide groove (522) is provided at the lower end of its horizontal part; a tin delivery component (524) is slidably connected to the inner surface of the cross slide groove (522); a guide bracket (525) corresponding to the height of the cross slide groove (522) is fixedly connected to one end of the wire storage box (51) close to the stopper (44); a return spring (523) fixedly connected to the rear of the inner surface of the cross slide groove (522) is fixedly connected to the tin delivery component (524).

10. An electronic component welding device according to claim 9, characterized in that: The tin delivery component (524) includes a slider 1 (5242) slidably connected to the inner surface of the cross slide (522); the upper end of the slider 1 (5242) is fixedly connected to an arc-shaped support block (5244); the inner surface of the arc-shaped support block (5244) is annularly distributed and fixedly connected to a plurality of scaly rubber blocks (5243); the top wall of the inner surface of the slider 1 (5242) is fixedly connected to a spring 2 (5245); the lower end of the spring 2 (5245) is fixedly connected to a slider 2 (5246) slidably connected to the inner surface of the slider 1 (5242); the front part of the inner surface of the cross slide (522) is fixedly connected to a wedge block (5241); the front end of the slider 2 (5246) is provided with a connecting groove (5247) which is connected to the rear end and whose position corresponds to the wedge block (5241).

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