Control system of tin soldering wire

Abstract

The invention discloses a control system of a tin soldering wire, and relates to the technical field of element tin soldering forming, and the control system comprises the following steps: step 1, element feeding; 2, welding a wire on the surface of the element; step 3, stripping detection; fourthly, conducting wire post-welding inspection is conducted; 5, assembling and bending the fuse; sixthly, the workpiece is overturned and soldered with the fuse; 7, workpiece overturning and fuse post-welding inspection are carried out; and eighthly, automatic discharging and stacking are conducted. According to the system, tin soldering can be carried out on elements in various size ranges, meanwhile, the supplement scheme that the range can be adjusted to 60 mm in the height direction is met, and the flexibility of automatic equipment is improved. The equipment is full-automatic equipment, has the main functions of automatic feeding, grabbing and overturning, assembling, welding, detecting and the like, and has intelligent integration. The equipment is high in OEE design efficiency, the target can reach 75%, and the target capacity is not smaller than 540 pieces per hour. The equipment can automatically discharge materials and can automatically give an alarm under abnormal conditions.

Description

Technical Field

[0001] The invention relates to the technical field of component soldering molding, and in particular to a control system for a soldering line. Background Art

[0002] Component soldering is an important electric fusion connection technology, which involves heating and melting low-melting-point metal solder, infiltrating and filling the gaps at the joints of metal parts to achieve electrical and mechanical connections between components. Soldering forming technology is widely used in the electronics industry, especially in scenarios where precision connections are required. It requires the solder to have good wettability and fluidity to ensure welding quality. At the same time, the heating time needs to be controlled during the welding process to avoid thermal damage to electronic components. In addition, the design of the solder joint is also key. Reasonable solder joint geometry can significantly improve the strength and reliability of welding.

[0003] In the control system of the soldering line, if some parameters of the soldering equipment and clamping mechanism relative to the component surface height cannot be adjusted in time according to the size range and height of the component, cold soldering and solder leakage will occur, further causing the component to fail to meet the welding requirements. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a control system for a soldering wire, and a method for using the control system for the soldering wire comprises the following steps:

[0005] Step 1: Component loading;

[0006] Step 2: solder the wires on the surface of the component;

[0007] Step 3: peeling detection;

[0008] Step 4: Check the wire after welding;

[0009] Step 5: Fuse assembly and bending;

[0010] Step 6: Turn the workpiece over and solder the fuse;

[0011] Step 7: Turn over the workpiece and check the fuse after welding;

[0012] Step 8: Automatic unloading and palletizing.

[0013] The size range of compatible components in step 1 is:

[0014] Diameter 40mm-60mm, height 76mm, tolerance: 0~+3mm

[0015] The height of the mandrel is 77mm, the tolerance is 0~+2m, the diameter of different specifications varies, and the time for the component to complete this loading step is 5s. The component size design is compatible and does not require manual adjustment of the mechanism. Step one includes parts such as blocking position, rising block, barcode scanner, interception cylinder, side baffle, technical sensor and component clamp.

[0016] In the step 2, the L-shaped workpiece clamping structure 43 places the L-shaped wire on the surface of the component for welding, and the time for the component to complete this welding step is 6s. When the component is transported to the soldering station, the L-shaped workpiece clamping mechanism clamps the L-shaped wire and places it on the surface of the component, and then welds the L-shaped wire. The displacement and force control of the L-shaped workpiece clamping mechanism meet the tolerance to avoid the wire being not placed in place, resulting in insufficient gap soldering strength or damage to the surface of the component. Among them, step 2 includes a monitoring camera, a flexible loading tray, a soldering device, a laser height detection sensor, a soldering head cleaning device, a smoke filtering mechanism, a cooling mechanism, a stripping mechanism, a soldering detection device, and an L-shaped workpiece clamping mechanism.

[0017] The stripping in step 3 is used to detect whether the wire is firmly welded. The time for the component to complete this stripping detection step is 3 seconds. The stripping is used to judge the strength of the welding.

[0018] The post-welding inspection in step 4 is used to detect whether the L-shaped wire welding is qualified, wherein the time required for the component to complete this post-welding inspection step is 5 seconds.

[0019] In step five, the fuse is inserted into the interior of the component, and then the fuse is pressed and bent. The time for the component to complete the fuse assembly and bending step is 5 seconds. The clamping claw clamps the fuse from the material taking position, inserts the fuse into the interior of the component through the funnel-shaped guide mechanism, and then presses and bends the fuse. Among them, step five includes a fuse feeding bin, a vibration plate, a fuse clamping module, a funnel-shaped guide mechanism, a fuse pressing mechanism, and a fuse bending mechanism.

[0020] In step six, the soldering flipping mechanism clamps the component and flips it 180°, and then the soldering mechanism solders the component. The number of soldering mechanisms is 1, and the number of soldering flipping mechanisms is 1. The time required for the component to complete this step is 6s.

[0021] In step 7, the visual inspection flipping mechanism flips the component, and the visual inspection mechanism performs visual inspection on the component, wherein the time required for the component to complete this step is 4 seconds. The number of visual inspection mechanisms in step 7 is 1, and the number of visual inspection flipping mechanisms is 1. Among them, steps 6 and 7 include a soldering mechanism, a soldering flipping mechanism, a visual inspection mechanism, and a visual inspection flipping mechanism.

[0022] In step eight, components are unloaded through visual scanning, unqualified products enter the waste bin next to it, and qualified products are picked up by the robot and stacked on the tray. The time required for the components to complete this step is 5 seconds.

[0023] When the pallet is almost full in step eight, the empty pallet gripper grabs the empty pallet and waits for new components to be put in. Step eight includes a six-axis robot, an NG component box, a multi-layer pallet transfer mechanism, an AGV, a transfer trolley, a palletizing area, a palletizing lifting mechanism, an empty pallet, an empty pallet storage area, and an empty pallet transfer mechanism.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] (1) The system can meet the soldering needs of components of various sizes, and can also meet the supplementary solution of adjusting the height range to 60mm, thereby increasing the flexibility of the automation equipment. At the same time, according to the detection data of the component height, some parameters of the soldering equipment, L-shaped workpiece clamping mechanism and the component surface height can be adjusted to avoid problems such as cold soldering, leaking soldering and welding requirements not being met.

[0026] (2) The equipment is a fully automatic device with main functions including automatic feeding, grabbing and flipping, assembly, welding, testing and other functions, and has intelligent integration.

[0027] (3) The equipment has a high OEE design efficiency, with a target of 75% and a target production capacity of no less than 540 units per hour.

[0028] (4) The equipment can automatically unload materials and automatically alarm under abnormal circumstances, which has safety functions. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a front view of the present invention;

[0030] Figure 2 is a cross-sectional view of the frame of the present invention;

[0031] Figure 3 It is a structural schematic diagram of the feeding mechanism of the present invention;

[0032] Figure 4 The present invention Figure 3 A schematic diagram of the enlarged structure at A in the middle;

[0033] Figure 5 It is a structural schematic diagram of the clamping mechanism of the present invention;

[0034] Figure 6 The present invention Figure 5 A schematic diagram of the enlarged structure at B in the middle;

[0035] Figure 7It is a structural schematic diagram of the welding mechanism of the present invention;

[0036] Figure 8 It is a schematic diagram of the enlarged structure of C in 7 of the present invention;

[0037] Fig. 9 It is a structural schematic diagram of the fuse processing mechanism of the present invention;

[0038] Fig.10 The present invention Fig. 9 Schematic diagram of the enlarged structure at C in the middle;

[0039] Fig.11 It is a structural schematic diagram of the vibration plate of the present invention;

[0040] Fig.12 The present invention Fig.11 Schematic diagram of the enlarged structure at E in the middle;

[0041] Fig.13 It is a structural schematic diagram of the turning mechanism of the present invention;

[0042] Fig.14 The present invention Fig.13 The enlarged structural diagram at F in the middle;

[0043] Fig.15 It is a structural schematic diagram of the automatic unloading mechanism of the present invention;

[0044] Fig.16 The present invention Fig.15 Schematic diagram of the enlarged structure at G in the middle.

[0045] In the figure: 1. frame; 2. feeding mechanism; 21. blocking position; 22. rising block; 23. barcode scanner; 24. interception cylinder; 25. technical sensor; 26. side baffle; 3. clamping mechanism; 31. slider; 32. connecting rod mechanism; 33. avoidance hole; 34. limit groove; 4. welding mechanism; 41. monitoring camera; 42. flexible feeding tray; 43. L-shaped workpiece clamping mechanism; 44. soldering equipment; 45. soldering head cleaning device; 46. stripping mechanism; 47. soldering detection equipment; 48. height sensor detection equipment; 5. fuse processing mechanism; 51. fuse Feeding bin; 52. Vibrating plate; 53. Clamping fuse module; 54. Funnel-shaped guiding mechanism; 55. Fuse pressing mechanism; 56. Fuse bending mechanism; 6. Turning mechanism; 61. Soldering mechanism; 62. Soldering turning mechanism; 63. Visual inspection mechanism; 64. Visual inspection turning mechanism; 7. Automatic unloading mechanism; 71. Six-axis robot; 72. NG component material box; 73. Multi-layer material tray transplanting mechanism; 74. AGV; 75. Transplanting trolley; 76. Palletizing area; 77. Palletizing lifting mechanism; 78. Empty material tray; 79. Empty material tray storage area; 701. Empty material tray transplanting mechanism. DETAILED DESCRIPTION

[0046] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0047] See also Figure 1-Figure 16 The present invention provides a control system for a soldering wire, and a method for using the control system for the soldering wire comprises the following steps:

[0048] Step 1: Component loading;

[0049] Step 2: solder the wires on the surface of the component;

[0050] Step 3: peeling detection;

[0051] Step 4: Check the wire after welding;

[0052] Step 5: Fuse assembly and bending;

[0053] Step 6: Turn the workpiece over and solder the fuse;

[0054] Step 7: Turn over the workpiece and check the fuse after welding;

[0055] Step 8: Automatic unloading and palletizing.

[0056] The size range of compatible components in step 1 is:

[0057] Diameter 40mm-60mm, height 76mm, tolerance: 0~+3mm

[0058] The height at the mandrel is 77mm, the tolerance is 0~+2mm, the diameter of different specifications varies, and the time for the component to complete this loading step is 5s. The component size design is compatible, and no manual adjustment mechanism is required. The loading mechanism 2 in step 1 includes a blocking position 21, a rising block 22, a barcode scanner 23, an intercepting cylinder 24, a side baffle 26, a technical sensor 25, and a component clamp.

[0059] In step 2, the L-shaped workpiece clamping structure 43 places the L-shaped wire on the surface of the component for welding, and the time for the component to complete this welding step is 6s. When the component is transported to the soldering station, the L-shaped workpiece clamping mechanism 43 clamps the L-shaped wire and places it on the surface of the component, and then welds the L-shaped wire. The displacement and force control of the L-shaped workpiece clamping mechanism 43 meet the tolerance, avoiding the wire from being placed in place, resulting in insufficient gap soldering strength or damaging the surface of the component. Among them, the welding mechanism 4 in step 2 includes a monitoring camera 41, a flexible loading tray 42, a soldering device 44, a laser height detection sensor, a soldering head cleaning device 45, a smoke filtering mechanism, a cooling mechanism, a stripping mechanism 46, a soldering detection device 47, and an L-shaped workpiece clamping mechanism 43. The laser height detection sensor 48 can detect the height of the component, and according to the detection height data, adjust the parameters such as the soldering equipment, the L-shaped workpiece clamping mechanism 43 and the height of the component surface to avoid no false soldering, leaking soldering, and meet the welding requirements. The soldering equipment has a temperature control system to monitor the temperature in real time. The soldering head cleaning tank is used to clean the soldering iron tip tin slag, the smoke filtering mechanism filters the soldering smoke, the cooling mechanism blows air to quickly cool the solder joint to ensure the soldering curing effect, the stripping mechanism 46 determines the welding strength, and the soldering detection equipment 47 is used to detect the welding quality.

[0060] In step 3, the stripping is used to detect whether the wire is firmly welded. The time for the component to complete this stripping detection step is 3s. The stripping is used to judge the strength of the welding.

[0061] The post-weld inspection in step 4 is used to detect whether the L-shaped wire welding is qualified, and the time required for the component to complete this post-weld inspection step is 5s.

[0062] In step five, the fuse is inserted into the interior of the component, and then the fuse is pressed and bent. The time for the component to complete the fuse assembly and bending step is 5s. The clamping claw clamps the fuse from the material taking position, inserts the fuse into the interior of the component through the funnel-shaped guide mechanism 54, and then presses and bends the fuse. The fuse processing mechanism 5 in step five includes a fuse feeding bin 51, a vibration plate 52, a fuse clamping module 53, a funnel-shaped guide mechanism 54, a fuse pressing mechanism 55, and a fuse bending mechanism 56.

[0063] In step six, the soldering flipping mechanism 62 clamps the component and flips it 180°, and then the soldering mechanism 61 solders the component. The number of soldering mechanisms 61 is 1, and the number of soldering flipping mechanisms 62 is 1. The time required for the component to complete this step is 6s.

[0064] In step 7, the visual inspection flipping mechanism 64 flips the component, and the visual inspection mechanism 63 performs visual inspection on the component, wherein the time required for the component to complete this step is 4 seconds. The number of visual inspection mechanisms 63 in step 7 is 1, and the number of visual inspection flipping mechanisms 64 is 1. Among them, the flipping mechanism 6 in step 6 and step 7 includes a soldering mechanism 61, a soldering flipping mechanism 62, a visual inspection mechanism 63, and a visual inspection flipping mechanism 64.

[0065] In step eight, components are unloaded through visual scanning, unqualified products go into the waste bin nearby, and qualified products are picked up by robots and stacked on pallets. It takes 5 seconds for the components to complete this step.

[0066] When the pallet is almost full in step eight, the empty pallet 78 is gripped by the clamp to wait for new components to be put in. The automatic unloading mechanism 7 in step eight includes a six-axis robot 71, an NG component box 72, a multi-layer pallet transfer mechanism 73, an AGV 74, a transfer trolley 75, a palletizing area 76, a palletizing lifting mechanism 77, an empty pallet 78, an empty pallet storage area 79, and an empty pallet transfer mechanism 701.

[0067] First, the components are loaded, that is, the cylinder opens to let the components flow in. When the number of components flowing in reaches the standard, that is, there is a risk of explosion, the cylinder closes and stops letting in components. Then the components are grabbed and rotated to identify the barcode, and then the components are grabbed and placed on the carrier platform. The process of the component completing this step takes 5 seconds.

[0068] The carrier platform in the clamping mechanism 3 includes a spring, a slider 31, a connecting rod mechanism 32, an avoidance hole 33, a limit groove 34, a cylinder and a positioning device. The function of the carrier platform is to clamp or release components and fix components; the connecting rod mechanism 32 makes the slider 31 move and displace in a consistent manner, so that components of different sizes can be in the center position without changing tooling. It can be compatible with components with a diameter of 40-60mm, or even larger and smaller specifications, and has a richer compatible size. Among them, a spring is arranged inside the slider 31, and the spring plays a reciprocating force effect. The slider 31 can be compatible with different sizes. The Z-direction limit of the connecting rod mechanism 32 pushes the V block to open or close, and the displacement of the two V blocks is equal, so that the components are centered. The function of the avoidance hole 33 is to avoid L-shaped copper wires, fuses, etc.; the function of the limit groove 34 is to cooperate with the positioning device. The cylinder can push the connecting rod mechanism 32 to move, and the positioning device plays the role of carrier positioning.

[0069] When the component needs to be welded, the height sensor detection device 48 detects the height of the component, and then the component is transported to the soldering station, and the L-shaped workpiece clamping mechanism 43 clamps the L-shaped wire and places it on the surface of the component, and then welds the L-shaped wire, peels and detects the strength after welding, and finally visually inspects the welding quality. The soldering of the component A side takes 5 seconds, the peeling detection takes 3 seconds, and the visual inspection takes 4 seconds.

[0070] The clamping claws clamp the fuse from the material taking position, then insert it into the interior of the component through the funnel-shaped guide mechanism 54, and finally bend the fuse.

[0071] The lifting device opens the carrier to facilitate the removal of the component, and then the flip mechanism 6 clamps the component and flips it 180 degrees, and then soldering and visual inspection are performed respectively.

[0072] When the components are automatically unloaded after soldering, they are unloaded by visual scanning. Unqualified products enter the waste box next to them, and qualified products are picked up by the robot and stacked on the tray. When the number of layers of qualified product stacking trays reaches the requirement, the robot will stop 1-2 component code beats, and the subsequent robot will speed up to add 1-2 beat time. The multi-layer tray transfer mechanism 73 will remove it and put it on the transfer trolley 75. After the multi-layer tray is removed, the stacking area 76 lifting mechanism will rise to the initial height , and a new tray is placed by the empty tray 78 clamp. When there is no tray in one area of ​​the empty tray 78, the empty tray storage area 79 can be opened manually to put in the corresponding number of empty trays 78; when qualified products are picked up by the robot and stacked on the tray, if the tray is almost full, the empty tray 78 clamp grabs the empty tray 78 and waits for it to be put in. After the empty tray 78 is full of components, it automatically descends by one tray height, and the empty tray transplanting mechanism 701 places a new tray on the full tray, and the robot continues to stack.

[0073] After the multi-layer tray transfer mechanism 73 moves the multi-layer tray to the transfer trolley 75, it can be transported away by AGV74 or removed manually. When the number of tray layers at the stacking lifting mechanism 77 reaches the specified number, the multi-layer tray transfer mechanism 73 will move to the stacking lifting mechanism 77 again for transportation.

[0074] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A control system for a soldering wire, characterized in that: The method for using the control system of the soldering wire comprises the following steps: Step 1: Component loading; Step 2: solder the wires on the surface of the component; Step 3: peeling detection; Step 4: Check the wire after welding; Step 5: Fuse assembly and bending; Step 6: Turn the workpiece over and solder the fuse; Step 7: Turn over the workpiece and check the fuse after welding; Step 8: Automatic unloading and palletizing.

2. The control system of the soldering wire according to claim 1, characterized in that: The size range of compatible components in step 1 is: Diameter 40mm-60mm, height 76mm, tolerance: 0~+3mm Height at the spindle: 77mm, tolerance: 0~+2mm.

3. The control system of the soldering wire according to claim 1, characterized in that: In the second step, the L-shaped workpiece clamping structure 43 places the L-shaped wire on the surface of the component for welding.

4. The control system of the soldering wire according to claim 1, characterized in that: The stripping in step 3 is used to detect whether the wire is firmly welded.

5. The control system of the soldering wire according to claim 1, characterized in that: The post-welding inspection in step 4 is used to detect whether the L-shaped wire welding is qualified.

6. The control system of the soldering wire according to claim 1, characterized in that: In the step five, the fuse is inserted into the interior of the component, and then the fuse is pressed and bent.

7. The control system of the soldering wire according to claim 1, characterized in that: In step six, the soldering turning mechanism (62) clamps the component and turns it 180°, and then the soldering mechanism (61) solders the component.

8. The control system of the soldering wire according to claim 1, characterized in that: In the step seven, the visual inspection flipping mechanism (64) flips the component, and the visual inspection mechanism (63) performs visual inspection on the component.

9. The control system of the soldering wire according to claim 1, characterized in that: In step eight, components are unloaded through visual scanning, unqualified products enter the waste bin next to it, and qualified products are picked up by robots and stacked on trays.

10. The control system of the soldering wire according to claim 1, characterized in that: When the pallet is almost full in step eight, the empty pallet (78) gripper grabs the empty pallet (78) and waits for new components to be put in.

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