Wire harness welding equipment

Abstract

The invention relates to the technical field of wire harness welding, in particular to wire harness welding equipment which comprises a machine table. The conveying mechanism is used for conveying the wire harness and the terminal; the welding mechanism is used for welding the wire harness and the terminal; the pretreatment mechanism is used for pretreating the wire harness; the pretreatment mechanism comprises a conveying belt mounted on the machine table; the limiting frame is mounted in the conveying direction of the conveying belt; and the electromagnet is fixedly mounted on the limiting frame. According to the wire harness straightening device, a first motor is started to drive a two-way screw to rotate and drive two moving plates to get close to each other, so that two straightening plates are driven to get close to each other, a straightening groove is driven to clamp a copper wire of a wire harness, the copper wire is collected into the straightening groove, at the moment, an air cylinder is started to drive a mounting box to be away from the wire harness, and therefore the straightening plates are away from the wire harness; through relative movement between the straightening groove and the copper wire, the bent copper wire can be straightened, and straightening of the wire harness is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of wire harness welding, in particular to a wire harness welding device. BACKGROUND

[0002] Wire harness refers to a structure composed of a group of wires or cables, which are usually bundled or wrapped together to provide convenience and protection when transmitting power or signals. According to different classification standards, wire harness can be divided into various types, such as power wire harness, signal wire harness, data wire harness, etc.

[0003] In the field of modern electrical and electronic equipment manufacturing, wire harness is a key component that connects various electrical components, and its quality and reliability directly affect the performance of the entire device. Wire harness is usually composed of multiple wires connected with corresponding terminals, and terminal welding is an important process link to realize reliable connection of wires and terminals.

[0004] Currently, after the copper wire of the wire harness is stripped, the copper wire is prone to bending, which greatly affects the docking accuracy of the copper wire and the terminal contact.

[0005] Therefore, it is necessary to provide a new technical solution to overcome the above-mentioned defects. SUMMARY

[0006] The purpose of the present application is to provide a wire harness welding device that can effectively solve the above technical problems.

[0007] To achieve the purpose of the present application, the following technical solutions are adopted:

[0008] A wire harness welding device, comprising: a machine table; a conveying mechanism for conveying wire harness and terminals; a welding mechanism for welding wire harness and terminals; a pretreatment mechanism for pretreating wire harness;

[0009] The pretreatment mechanism comprises: a conveying belt mounted on the machine table; a limiting frame mounted along the conveying direction of the conveying belt; an electromagnet fixedly mounted on the limiting frame; a placement plate for placing wire harness; a fixing member for fixing the placed wire harness; a mounting box; a moving assembly for moving the mounting box; a straightening assembly for straightening the core of the wire harness;

[0010] The straightening assembly comprises: a straightening plate; a fixed box fixedly installed in the mounting box; a bidirectional screw rod rotatably installed on the fixed box; a motor one for driving the bidirectional screw rod to rotate; a moving plate in threaded connection with the bidirectional screw rod; a fixed rod for limiting the movement of the moving plate; and the straightening plate is fixedly connected with the moving plate.

[0011] Further, the straightening plate is provided with two straightening plates, and the side close to each other of the two straightening plates is provided with a straightening groove.

[0012] Further, the fixing member comprises: an extrusion block hingedly mounted on the placing plate; and a pulling rod fixedly mounted on the extrusion block.

[0013] Further, the moving assembly comprises: a mounting frame; a gas cylinder fixedly mounted on the mounting frame; and a limiting rod penetratingly mounted on the mounting frame; the movable end of the gas cylinder is fixedly connected with the mounting box, and the end of the limiting rod is fixedly connected with the mounting box.

[0014] Further, the pretreatment mechanism further comprises: a smearing assembly for smearing the wire harness with flux.

[0015] The smearing assembly comprises: an adsorbing smearing body fixedly mounted in the straightening groove; a liquid storage tank fixedly mounted on the mounting box; a liquid outlet pipe fixedly mounted on the liquid storage tank; a gas pump fixedly mounted in the mounting box; an air inlet pipe in communication with the gas pump and the mounting box; a fixed pipe fixedly mounted on the mounting box; a sliding block slidingly mounted in the fixed pipe; a threaded pipe fixedly mounted on the sliding block; an air passage formed in the sliding block; an air outlet pipe in communication with the gas pump and the air passage; a gas guide pipe one in communication with the fixed pipe and the liquid storage tank; and a fan blade rotatably mounted in the liquid storage tank.

[0016] Further, the smearing assembly further comprises: a porous plate fixedly mounted in the liquid outlet pipe; a sliding rod penetratingly mounted on the porous plate; a sealing block fixedly mounted on the end of the sliding rod; and a reset spring for driving the sealing block to reset.

[0017] Further, the pretreatment mechanism further comprises: a cleaning assembly for cleaning the wire harness.

[0018] The cleaning assembly comprises: an annular pipe fixedly mounted in the mounting box; a gas guide pipe two in communication with the annular pipe and the fixed pipe; a spray head in communication with the annular pipe; a collecting plate hingedly mounted in the mounting box; a rotating roller rotatably mounted in the mounting box; a second motor for driving the rotating roller to rotate; two collecting plates, and a linkage spring fixedly mounted between the two collecting plates; and a groove formed in the rotating roller.

[0019] Further, the cleaning assembly further comprises: a filter screen fixedly mounted on the air inlet end of the air inlet pipe; a fixed plate fixedly mounted in the mounting box; a linkage rod penetratingly mounted on the fixed plate; a linkage block fixedly mounted on one end of the linkage rod; a brush fixedly mounted on the other end of the linkage rod; and a connecting spring for driving the linkage block to reset.

[0020] Further, the conveying mechanism comprises a moving module one fixedly installed on the machine table; and a conveying mechanical arm installed on the moving module one.

[0021] Further, the welding mechanism comprises a moving module two fixedly installed on the machine table; a welding mechanical arm installed on the moving module two; and a clamping mechanical arm installed on the moving module two.

[0022] Compared with the prior art, the present application has the following beneficial effects:

[0023] The wire harness welding equipment of the present application drives the two moving plates to approach each other by driving the motor one to rotate the bidirectional screw rod, thereby driving the two straightening plates to approach each other, thereby driving the straightening groove to clamp the copper wire of the wire harness, so that the copper wire is gathered into the straightening groove; at this time, the installation box is driven away from the wire harness by the cylinder, thereby driving the straightening plates away from the wire harness, and the relative movement between the straightening groove and the copper wire occurs, thereby straightening the bent copper wire, and realizing the straightening of the wire harness. BRIEF DESCRIPTION OF DRAWINGS

[0024] The accompanying drawings are included to provide a further understanding of the present application, and constitute a part of the specification, illustrate the present application together with the embodiments thereof, and explain the present application, but do not limit the present application.

[0025] Figure 1 Fig. 1 is a perspective view of the wire harness welding equipment of the present application;

[0026] Figure 2 Fig. 2 is a cross-sectional view of the machine table of the wire harness welding equipment of the present application;

[0027] Figure 3 Fig. 3 is a perspective view of the moving module one of the wire harness welding equipment of the present application;

[0028] Figure 4 Fig. 4 is a perspective view of the placing plate of the wire harness welding equipment of the present application;

[0029] Figure 5 Fig. 5 is a perspective view of the Figure 4 Fig. 6 is an enlarged view of A in Fig. 5;

[0030] Figure 6 Fig. 7 is a cross-sectional view of the installation box of the wire harness welding equipment of the present application;

[0031] Figure 7 Fig. 8 is a perspective view of the Figure 6 Fig. 9 is an enlarged view of B in Fig. 8;

[0032] Figure 8 Fig. 10 is a cross-sectional view of the fixed box of the wire harness welding equipment of the present application;

[0033] Figure 9 Figure 8 is a sectional view of a fixed tube of a wiring harness welding device according to the present application;

[0034] Figure 10 Figure 9 is a sectional view of a liquid outlet tube of a wiring harness welding device according to the present application;

[0035] Figure 11 Figure 10 is a perspective view of a brush of a wiring harness welding device according to the present application.

[0036] In the drawings:

[0037] 1, machine table; 2, conveying mechanism; 21, moving module one; 22, conveying manipulator; 3, welding mechanism; 31, moving module two; 32, welding manipulator; 33, clamping manipulator; 4, pretreatment mechanism; 41, conveying belt; 42, limiting frame; 43, placement plate; 431, fixing piece; 4311, extrusion block; 4312, pulling rod; 44, electromagnet; 45, mounting box; 46, moving assembly; 461, air cylinder; 462, limiting rod; 463, mounting bracket; 47, straightening assembly; 471, straightening plate; 472, driving unit; 4721, fixed box; 4722, bidirectional screw rod; 4723, motor one; 4724, moving plate; 4725, fixed rod; 4726, straightening groove; 48, smearing assembly; 481, adsorbing smearing body; 482, liquid storage tank; 483, liquid supply unit; 4831, liquid outlet tube; 4832, air pump; 4833, air inlet tube; 4834, fixed tube; 4835, sliding block; 4836, threaded tube; 4837, air cavity; 4838, air outlet tube; 4839, air guide tube one; 484, fan blade; 485, control unit; 4851, perforated plate; 4852, sliding rod; 4853, sealing block; 4854, return spring; 49, cleaning assembly; 491, air guide tube two; 492, annular tube; 493, spray head; 494, collection plate; 495, linkage spring; 496, rotating roller; 497, motor two; 498, filter screen; 499, cleaning unit; 4991, linkage block; 4992, linkage rod; 4993, connecting spring; 4994, brush. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the following will combine the technical solutions in the embodiments of the present application to make a clear and complete description. Obviously, the described embodiments are part of the embodiments of the present application, not all the embodiments.

[0039] In the description of the present application, it needs to be understood that the terms "center", "transverse", "longitudinal", "front", "back", "left", "right", "up", "down", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the scope of protection of the present application. When a component is referred to as "fixed to" another component, it can be directly on the other component or there can be a middle component. When a component is referred to as "connected to" another component, it can be directly connected to the other component or there can be a middle component. When a component is referred to as "disposed on" another component, it can be directly disposed on the other component or there can be a middle component. The terms "vertical", "horizontal", "left", "right" and the like used herein are only for illustrative purposes.

[0040] As shown in the figure, the present application is a wiring harness welding device, comprising: a machine table 1; a conveying mechanism 2 for conveying the wiring harness and the terminal; a welding mechanism 3 for welding the wiring harness and the terminal; a pretreatment mechanism 4 for pretreating the wiring harness. Figures 1 to 11

[0041] The wiring harness used in the present application has been stripped at the welding end, so that the copper wires are exposed.

[0042] The pretreatment mechanism 4 comprises: a conveying belt 41 mounted on the machine table 1; a limiting frame 42 mounted along the conveying direction of the conveying belt 41; an electromagnet 44 fixedly mounted on the limiting frame 42; a placement plate 43 for placing the wiring harness; a fixing piece 431 for fixing the placed wiring harness; a mounting box 45, a plurality of circular openings are formed on the mounting box 45, and the plurality of circular openings correspond to the plurality of wiring harnesses respectively; a moving assembly 46 for moving the mounting box 45; a straightening assembly 47 for straightening the core of the wiring harness.

[0043] A plurality of placement grooves are formed on the placement plate 43, so that a plurality of wiring harnesses can be placed at the same time, and the plurality of wiring harnesses are placed in the corresponding placement grooves respectively, and the wiring harnesses are fixed by the fixing piece 431; the fixing piece 431 is provided with a plurality of fixing pieces, so that a plurality of wiring harnesses can be fixed by extrusion.

[0044] The fixing piece 431 comprises: an extrusion block 4311 hingedly mounted on the placement plate 43; a torsional spring mounted at the hinge of the extrusion block 4311 and the placement plate 43, so as to drive the extrusion block 4311 to reset; a pulling rod 4312 fixedly mounted on the extrusion block 4311.

[0045] ​When the wire harness is fixed, first pull the pull rod 4312, so that the extrusion block 4311 rotates along its hinge, at this time the wire harness can be placed in the corresponding placing groove, the rotation of the extrusion block 4311 can drive the torsional spring to deform, after the wire harness is placed, release the pull rod 4312, and through the elastic force of the torsional spring, drive the extrusion block 4311 to reset, so that the multiple wire harnesses can be extruded and fixed, and the wire harnesses are placed to move during welding, which affects the welding effect.

[0046] It is supplemented here that the torsional spring used in the application has large elastic force, so that the extrusion block 4311 can press the multiple wire harnesses, and the extrusion side of the extrusion block 4311 can be fixedly installed with a rubber layer, so that the friction with the wire harness outer skin is increased, thereby improving the fixing effect of the wire harness.

[0047] When the wire harnesses on the placing plate 43 are all fixed, the conveying belt 41 drives the wire harnesses to move towards the direction of the electromagnet 44, and through the setting of the limiting frame 42, the movement of the placing plate 43 can be limited, so that the placing plate 43 is prevented from deviating on the conveying belt 41, when one side of the placing plate 43 abuts against the electromagnet 44, the conveying belt 41 stops running, at this time the electromagnet is energized, and the placing plate 43 is made of iron, so that the electromagnet 44 can adsorb the placing plate 43, and cooperates with the limiting frame 42 to improve the stability of the placing plate 43 on the conveying belt 41.

[0048] At present, the copper wire of the wire harness is prone to bending after being stripped, and the bent copper wire greatly affects the docking accuracy of the copper wire and the terminal contact, therefore, when the placing plate 43 is adsorbed by the electromagnet 44, the straightening assembly 47 is started to straighten the copper wire of the wire harness.

[0049] The straightening assembly 47 comprises: a straightening plate 471; a driving unit 472 for driving the straightening plate 471 to move; the driving unit 472 comprises: a fixed box 4721 fixedly installed in the mounting box 45; a bidirectional screw rod 4722 rotatably installed on the fixed box 4721; a motor one 4723 for driving the bidirectional screw rod 4722 to rotate, the motor one 4723 being fixedly installed on the fixed box 4721; a moving plate 4724 in threaded connection with the bidirectional screw rod 4722; a fixed rod 4725 for limiting the movement of the moving plate 4724, the fixed rod 4725 being fixedly installed in the fixed box 4721; the straightening plate 471 is fixedly connected with the moving plate 4724; the straightening plate 471 is provided with two straightening grooves 4726 on the side close to each other; the moving assembly 46 comprises: a mounting frame 463 fixedly installed on the machine table 1; a cylinder 461 fixedly installed on the mounting frame 463; a limiting rod 462 penetratingly installed on the mounting frame 463; the movable end of the cylinder 461 is fixedly connected with the mounting box 45, and the end of the limiting rod 462 is fixedly connected with the mounting box 45.

[0050] The starting air cylinder 461 drives the installation box 45 to approach the wire harness, and the copper wire of the wire harness passes through the circular opening into the straightening groove 4726, at this time, the starting motor 4723 drives the bidirectional screw rod 4722 to rotate, under the limiting action of the fixed rod 4725, the two moving plates 4724 approach each other, thereby driving the two straightening plates 471 to approach each other, thereby driving the straightening groove 4726 to clamp the copper wire of the wire harness, so that the copper wire is folded into the straightening groove 4726, at this time, the starting air cylinder 461 drives the installation box 45 to move away from the wire harness, thereby driving the straightening plates 471 to move away from the wire harness, and the relative movement between the straightening groove 4726 and the copper wire can be realized, so that the bent copper wire can be straightened, and the straightening of the wire harness is realized.

[0051] The pre-treatment mechanism 4 further comprises a smearing assembly 48 for smearing the wire harness with a flux; the smearing assembly 48 comprises an adsorbing smearing body 481 fixedly installed in the straightening groove 4726; a liquid supply unit 483 for supplying the flux into the adsorbing smearing body 481; the straightening plate 471 is provided with a cavity, and the cavity is communicated with the straightening groove 4726; when the liquid supply unit 483 supplies the flux into the cavity, the flux enters the adsorbing smearing body 481 through the communication part of the straightening groove 4726, and is adsorbed by the adsorbing smearing body 481.

[0052] The flux used in the present application is preferably a liquid flux.

[0053] The liquid supply unit 483 comprises a liquid storage tank 482 fixedly installed on the installation box 45; a liquid outlet pipe 4831 fixedly installed on the liquid storage tank 482; an air pump 4832 fixedly installed in the installation box 45; an air inlet pipe 4833 communicated with the installation box 45 and the air pump 4832; a fixed pipe 4834 fixedly installed on the fixed box 4721; a sliding block 4835 slidingly installed in the fixed pipe 4834; a threaded pipe 4836 fixedly installed on the sliding block 4835; an air passage 4837 formed in the sliding block 4835; an air outlet pipe 4838 communicated with the air pump 4832 and the air passage 4837; a gas guide pipe 4839 communicated with the fixed pipe 4834 and the liquid storage tank 482; a fan blade 484 rotatably installed in the liquid storage tank 482; and a threaded section formed on the outer side of the bidirectional screw rod 4722, and the threaded pipe 4836 is engaged with the bidirectional screw rod 4722 through the threaded section.

[0054] When the bidirectional screw rod 4722 rotates, the threaded pipe 4836 can be driven to move, since the sliding block 4835 is a rectangular block and matches the inner cavity of the fixed pipe 4834, the sliding block 4835 can be driven to slide upward in the fixed pipe 4834, when the two straightening plates 471 abut against each other, the air passage 4837 on the sliding block 4835 is communicated with the gas guide pipe 4839.

[0055] At this time, the air pump 4832 is started to deliver high-pressure gas, which enters the liquid storage tank 482 through the air outlet pipe 4838, the air cavity 4837 and the air guide pipe 4839 in sequence, so that the liquid storage tank 482 can be pressurized. When the air pressure in the liquid storage tank 482 increases, the flux in the liquid storage tank 482 is affected by the air pressure and is delivered to the cavity through the liquid outlet pipe 4831. The flux enters the adsorbing and smearing body 481 through the communication part of the straightening groove 4726, and is adsorbed by the adsorbing and smearing body 481.

[0056] When the air cylinder 461 drives the mounting box 45 away from the wire harness, so that the straightening plate 471 is away from the wire harness, and the adsorbing and smearing body 481 is driven away from the wire harness, the flux can be smeared on the surface of the copper wire of the wire harness through the movement of the adsorbing and smearing body 481. Since the copper wire surface is easy to form an oxide film, which hinders the wetting of the solder, the active ingredients (such as organic acid and halide) in the flux can dissolve the oxide film to expose the metal surface, ensuring that the solder and the wire core are well combined, and the surface tension of the molten solder is high, which is easy to form a ball rather than uniform spreading. The flux can reduce the surface tension of the solder and improve the wettability, so that the solder can fully fill the gap between the wire cores to form a dense welding point and improve the welding quality.

[0057] When the high-pressure gas enters the liquid storage tank 482, the fan blade 484 can be rotated to stir the flux, avoiding the problem of stratification of the flux due to the difference in the density of the components (such as the precipitation of active agents) during storage or transportation. The stirring can restore the uniformity of the flux, ensure the uniform distribution of active ingredients during welding, and further improve the welding quality.

[0058] The smearing assembly 48 further comprises a control unit 485 for controlling the liquid outlet of the liquid outlet pipe 4831. The control unit 485 comprises a perforated plate 4851 fixedly installed in the liquid outlet pipe 4831, a sliding rod 4852 penetratingly installed on the perforated plate 4851, a sealing block 4853 fixedly installed at the end of the sliding rod 4852, and a return spring 4854 for driving the sealing block 4853 to return, one end of the return spring 4854 being fixedly connected with the perforated plate 4851, and the other end of the return spring 4854 being fixedly connected with the sealing block 4853.

[0059] Under normal conditions, the sealing block 4853 seals the liquid outlet pipe 4831 by the elastic force of the return spring 4854, so as to prevent the flux from flowing out of the liquid outlet pipe 4831 automatically.

[0060] When the flux in the liquid storage tank 482 is affected by the air pressure and flows into the liquid outlet pipe 4831, the flux pushes the sealing block 4853 to move and drives the return spring 4854 to compress, and at this time the flux flows out of the liquid outlet pipe 4831.

[0061] Through the arrangement of the porous plate 4851, the flux flow can be dispersed, and the uniformity of the flux is further improved.

[0062] When the copper wire is coated, the air pump 4832 stops running, the one-way valve is installed on the air duct 4839, which ensures the one-way flow of the gas into the liquid tank 482, and prevents the flux in the liquid tank 482 from flowing into the air duct 4839. When the air pump 4832 stops running, the gas pressure inside and outside the liquid tank 482 is balanced, and the elastic force of the reset spring 4854 makes the sealing block 4853 seal the liquid outlet pipe 4831, thereby preventing the flux from flowing out automatically through the liquid outlet pipe 4831.

[0063] When the installation box 45 is reset, the motor 4723 drives the bidirectional screw 4722 to rotate, so that the two straightening plates 471 move away from each other, and the sliding block 4835 moves downward. When the two straightening plates 471 are reset, the air passage 4837 on the sliding block 4835 is connected with the air duct 491.

[0064] The pre-treatment mechanism 4 further comprises a cleaning assembly 49 for cleaning the wire harness; the cleaning assembly 49 comprises: a plurality of annular pipes 492 fixedly installed in the installation box 45; an air duct 491 connecting the annular pipes 492 and the fixed pipe 4834; a plurality of nozzles 493 connected with the annular pipes 492; a collection plate 494 hingedly installed in the installation box 45, a torsional spring being installed at the hinge of the collection plate 494 and the installation box 45, so as to drive the collection plate 494 to reset; a rotating roller 496 rotatably installed in the installation box 45; a motor 497 driving the rotating roller 496 to rotate, the motor 497 being fixedly installed on the installation box 45; the collection plate 494 is provided with two collection plates 494, and a linkage spring 495 is fixedly installed between the two collection plates 494; the rotating roller 496 is provided with a groove.

[0065] During the process of driving the installation box 45 to approach the wire harness and making the copper wire of the wire harness pass through the circular opening into the straightening groove 4726, the air pump 4832 is started, at this time the air passage 4837 on the sliding block 4835 is connected with the air duct 491, so that the high-pressure gas generated by the air pump 4832 passes through the air outlet pipe 4838, the air passage 4837, the air duct 491, the annular pipe 492 in turn, and is sprayed out through the nozzles 493, and cooperates with the movement of the installation box 45 to clean the dust on the surface of the copper wire, so as to ensure the cleanliness of the copper wire and make the flux better contact with the copper wire.

[0066] At the same time, the air inlet pipe 4833 of the air pump 4832 can suck out the air at the bottom of the inner cavity of the mounting box 45, so that a negative pressure is formed at the bottom of the inner cavity of the mounting box 45, the dust blown off by the nozzle 493 flows downward along the air flow and enters the bottom of the inner cavity of the mounting box 45 through the two collecting plates 494 to be stored.

[0067] The two collecting plates 494 are staggered with each other at the side close to each other, so that the dust is not easy to float upward, thereby better collecting the dust.

[0068] At the same time, the rotation of the rotating roller 496 driven by the starting motor 497, because the rotating roller 496 is provided with grooves, the protrusions on the surface of the rotating roller 496 can knock the adjacent collecting plate 494 and drive the connecting spring 495 to deform, the connecting spring 495 drives the other collecting plate 494 to vibrate, so that the two collecting plates 494 vibrate, thereby quickly shaking off the dust attached to the collecting plate 494, improving the collection efficiency of the dust.

[0069] Here, it is supplemented that the mounting box 45 is provided with a sealing door, when the dust in the mounting box 45 is cleaned, the sealing door is opened to clean.

[0070] The liquid supply unit 483 further comprises: a filter screen 498 fixedly installed at the air inlet end of the air inlet pipe 4833; a cleaning unit 499 for cleaning the filter screen 498; the cleaning unit 499 comprises: a fixed plate fixedly installed in the mounting box 45; a connecting rod 4992 penetratingly installed on the fixed plate; a connecting block 4991 fixedly installed at one end of the connecting rod 4992; a brush 4994 fixedly installed at the other end of the connecting rod 4992; a connecting spring 4993 for driving the connecting block 4991 to reset, one end of the connecting spring 4993 is fixedly connected with the connecting block 4991, and the other end of the connecting spring 4993 is fixedly connected with the fixed plate.

[0071] By the setting of the filter screen 498, the dust collected at the bottom of the inner cavity of the mounting box 45 can be prevented from entering the air inlet pipe 4833, so that the gas discharged by the air pump 4832 is clean gas, so that the flux is not polluted when the flux is pressurized and stirred.

[0072] By the rotation of the rotating roller 496 and the elastic force of the connecting spring 4993, the connecting block 4991 can move along the protrusions and grooves on the surface of the rotating roller 496, so that the brush 4994 can move up and down reciprocally, and the movement of the brush 4994 can clean the filter screen 498, thereby avoiding the blockage of the filter screen 498 and ensuring the filtering effect of the filter screen 498.

[0073] In the application, through the rotation of the rotating roller 496, on the one hand, the two collecting plates 494 are vibrated, so that the dust attached to the collecting plates 494 can be quickly shaken off, and the dust collection efficiency is improved, and on the other hand, the brush 499 is driven to move up and down reciprocatingly, and the filter screen 498 is cleaned, so that the filter screen 498 is prevented from being blocked, and the filtering effect of the filter screen 498 is ensured.

[0074] The conveying mechanism 2 comprises a moving module one 21 fixedly installed on the machine table 1 and a conveying manipulator 22 installed on the moving module one 21.

[0075] The conveying manipulator 22 can be used to feed the terminals and the pretreated wire harness and discharge the terminals and the wire harness after welding by moving the moving module one 21 to drive the conveying manipulator 22 to move.

[0076] The welding mechanism 3 comprises a moving module two 31 fixedly installed on the machine table 1, a welding manipulator 32 installed on the moving module two 31 and a clamping manipulator 33 installed on the moving module two 31.

[0077] The welding manipulator 32 can be used to weld the terminals and the wire harness by moving the moving module two 31 to drive the welding manipulator 32 to move, and the clamping manipulator 33 can be used to fix the placement plate 43 of the terminals and the wire harness, so that the terminals and the wire harness are accurately connected, and the terminals and the wire harness are prevented from being deviated during welding, and the welding quality is affected.

[0078] The standard parts used in the application can be purchased from the market, and the special-shaped parts can be ordered according to the description and the drawings, the specific connection mode of each part adopts the conventional means such as bolts, rivets and welding in the prior art, the mechanical parts and equipment adopt conventional types in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, which will not be described in detail here, and the contents not described in detail in the specification belong to the prior art known to those skilled in the art.

[0079] It should be understood that those skilled in the art can make improvements or changes according to the above description, and all these improvements and changes shall belong to the protection scope of the appended claims of the application.

Claims

1. A wire harness welding device, characterized in that: include: Machine; A conveying mechanism for conveying the wire harness and terminals; A welding mechanism for welding the wiring harness and the terminal; A pre-processing mechanism for pre-processing the wiring harness; The pre-processing mechanism includes: a conveyor belt installed on the machine; a limit frame installed along the conveying direction of the conveyor belt; an electromagnet fixedly installed on the limit frame; a placement plate for placing the wire harness; a fixing member for fixing the placed wire harness; an installation box; a moving component for driving the installation box to move; and a straightening component for straightening the wire core of the wire harness. The straightening assembly includes: a straightening plate; a fixed box fixedly installed in the installation box; a bidirectional screw rotatably installed on the fixed box; a motor that drives the bidirectional screw to rotate; a movable plate threadedly connected to the bidirectional screw; a fixed rod that limits the movable plate; the straightening plate is fixedly connected to the movable plate.

2. A wire harness welding device according to claim 1, characterized in that: Two straightening plates are provided, and straightening grooves are provided on the adjacent sides of the two straightening plates.

3. The wire harness welding device according to claim 1, characterized in that: The fixing member includes: an extrusion block hingedly mounted on the placement plate; and a pulling rod fixedly mounted on the extrusion block.

4. The wire harness welding device according to claim 1, wherein: The moving assembly includes: a mounting frame; a cylinder fixedly mounted on the mounting frame; a limiting rod installed through the mounting frame; the movable end of the cylinder is fixedly connected to the mounting box, and the end of the limiting rod is fixedly connected to the mounting box.

5. The wire harness welding device according to claim 2, characterized in that: The pre-treatment mechanism further comprises: a coating component for coating the wiring harness with flux; The coating assembly includes: an adsorption coating body fixedly installed in the straightening groove; a liquid storage tank fixedly installed on the mounting box; a liquid outlet pipe fixedly installed on the liquid storage tank; an air pump fixedly installed in the mounting box; an air inlet pipe connecting the air pump and the mounting box; a fixed pipe fixedly installed on the fixed box; a sliding block slidably installed in the fixed pipe; a threaded pipe fixedly installed on the sliding block; a ventilation cavity opened on the sliding block; an outlet pipe connecting the air pump and the ventilation cavity; an air guide pipe connecting the fixed pipe and the liquid storage tank; and a fan blade rotatably installed in the liquid storage tank.

6. A wire harness welding device according to claim 5, characterized in that: The smear assembly further includes: a porous plate fixedly mounted in the liquid outlet pipe; a sliding rod penetrating the porous plate; a sealing block fixedly mounted at the end of the sliding rod; and a reset spring for driving the sealing block to reset.

7. A wire harness welding device according to claim 6, characterized in that: The pre-treatment mechanism further comprises: a cleaning component for cleaning the wiring harness; The cleaning assembly includes: an annular tube fixedly installed in the installation box; two air guide tubes connecting the annular tube and the fixed tube; a nozzle connected to the annular tube; a collecting plate hingedly installed in the installation box; a rotating roller rotatably installed in the installation box; two motors that drive the rotating roller to rotate; two collecting plates are provided, and a linkage spring is fixedly installed between the two collecting plates; and a groove is provided on the rotating roller.

8. The wire harness welding device according to claim 7, characterized in that: The cleaning assembly also includes: a filter fixedly mounted on the air inlet end of the air inlet pipe; a fixed plate fixedly mounted in the mounting box; a connecting rod installed through the fixed plate; a connecting block fixedly mounted on one end of the connecting rod; a brush fixedly mounted on the other end of the connecting rod; and a connecting spring that drives the connecting block to return to its original position.

9. The wire harness welding device according to claim 1, wherein: The conveying mechanism includes: a moving module 1 fixedly installed on the machine platform; and a conveying robot installed on the moving module 1.

10. The wire harness welding device according to claim 1, characterized in that: The welding mechanism includes: a second mobile module fixedly mounted on the machine platform; a welding robot mounted on the second mobile module; and a clamping robot mounted on the second mobile module.

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