Circuit board welding device

Abstract

The utility model discloses a circuit board welding device which comprises a linear sliding table transversely arranged on a supporting frame body, a welding gun assembly and a wire feeding mechanism are arranged on a sliding base of the linear sliding table, and a linear driving mechanism capable of driving the welding gun assembly to vertically move is arranged on the sliding base. The welding gun assembly comprises a lifting plate, an adjusting plate is arranged on the end face of the front side of the lifting plate, a plurality of adjusting holes are formed in the adjusting plate, and the adjusting plate penetrates through the adjusting holes through bolts to be fixedly connected with the lifting plate. A limiting block is fixedly arranged on the adjusting plate and located on the lower side of the connecting end plate, a guide rod is fixedly arranged on the limiting block, a connecting plate is arranged on the guide rod, and a welding gun is fixedly arranged on the connecting plate; the connecting plate is connected with a fixing plate and movably connected with a first wire guide pipe through a connecting rod and a hinge piece. The welding gun assembly has the advantages that the positions and angles of the welding gun and the wire guide pipe are flexibly and conveniently adjusted, the welding gun assembly is stable and reliable in structure, and welding quality and welding efficiency are high; and the impact damage of the welding gun to the circuit board is small.

Description

Technical Field

[0001] The utility model relates to the technical field of welding, in particular to a circuit board welding device. Background Art

[0002] There are many types of unit indicators used in special vehicles, which can be divided into two types of structures: luminous disc and transparent disc, which are used to display different functions such as current, vehicle speed, temperature, pressure, etc. The circuit board assembly in the indicator is the core component, which plays an important role in product structure support and electrical function realization; welding processing is required during the assembly process of the circuit board assembly; the patent publication number CN207824130U discloses a circuit board assembly production line and a motor assembly production line, which specifically discloses a welding mechanism for welding the circuit board, including a welding gun assembly and a conveying assembly for conveying welding rods, and the conveying assembly includes a first conduit for inputting welding rods and a fifth driving element for driving the welding rods to move in the first conduit; however, there are problems such as the inconvenience of adjusting the angle between the welding gun and the wire guide tube, which affects the welding efficiency and welding quality, and the impact damage to the circuit board when the welding gun is pressed down is relatively large; the welding slag remaining after the welding gun welding process affects the quality of the next welding process. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the existing defects and provide a circuit board welding device, in which the position and angle of the wire guide tube and the welding gun can be flexibly and conveniently adjusted, and the welding gun assembly structure is stable and reliable, and the welding quality and welding efficiency are high; the welding gun causes little impact damage to the circuit board; the welding slag remaining after the welding process of the welding gun can be removed to avoid affecting the quality of the next welding process; and the problems in the background technology can be effectively solved.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a circuit board welding device, comprising a linear slide arranged horizontally on a support frame, a welding gun assembly being arranged on a slide seat of the linear slide, and a linear drive mechanism being arranged on the slide seat that can drive the welding gun assembly to move vertically; the welding gun assembly comprises a lifting plate connected to a driving end of the linear drive mechanism, an adjustment plate being arranged on the front end surface of the lifting plate, a connecting end plate with an arc structure being arranged on the adjusting plate, a plurality of adjustment holes being arranged on the connecting end plate along the contour direction thereof, and a The mounting hole is penetrated by bolts through the adjusting hole and the mounting hole and is fixedly connected to the lifting plate; a limit block is fixedly arranged on the adjusting plate at the lower side of the connecting end plate, a guide rod is fixedly arranged on the limit block, a connecting plate is arranged on the guide rod, and a welding gun is fixedly arranged on the connecting plate; a fixing plate is connected to the connecting plate, a connecting rod is arranged on the fixing plate, and the connecting rod is movably connected to a wire guide tube 1 through a hinge, and the wire outlet of the wire guide tube 1 is located at the upper end of the welding head of the welding gun; the wire feeding mechanism is used for feeding wire to the wire guide tube 1; the sliding seat is also provided with a wire feeding mechanism for feeding wire to the wire guide tube 1.

[0005] Furthermore, a wire guide tube head is provided at the end of the wire guide tube one, the wire inlet of the wire guide tube one is larger than the wire outlet of the wire guide tube head at the end thereof, and the wire outlet of the wire guide tube head is adapted to the outer diameter of the welding wire.

[0006] Furthermore, the connecting plate is slidably nested on the guide rod, a buffer spring is sleeved on the guide rod between the limit block and the connecting plate, and a limit shoulder is provided at the end of the guide rod.

[0007] Furthermore, a notch is provided at one end of the fixing plate connected to the connecting rod along the axial direction of the connecting rod, and a clamping hole matching the outer diameter of the connecting rod is provided at the inner end of the notch, and the connecting rod passes through and is nested in the clamping hole; a locking screw hole is provided at one end of the fixing plate connected to the connecting rod and is perpendicular to the notch, and a locking screw is provided in the locking screw hole, which can shrink the notch of the fixing plate and clamp the connecting rod.

[0008] Furthermore, the hinge is a rectangular ring structure, and hinge holes are provided at the bending parts at both ends of the hinge, the top surface of the hinge is provided with a notch two, and the top surface of the hinge is provided with locking screw holes two on both sides of the notch two; the connecting rod and the wire guide tube one are movably connected to the hinge hole of the hinge through a pin shaft, and the locking screw holes two are provided in the locking screw holes two, which can make the top surface of the hinge close to its bottom surface.

[0009] Furthermore, the wire feeding mechanism includes a wire storage drum and a wire feeding box provided on the slide seat, and the wire feeding box is located below the wire storage drum; a wire guide plate is provided at the top of the wire feeding box, and a wire guide channel is opened at the top of the wire guide plate; a wire guide tube 2 is provided at the bottom end of the wire feeding box; a traction roller group for pulling the welding wire is provided between the wire guide plate and the wire guide tube 2 in the wire feeding box, and the traction roller group includes a wire feeding wheel and a driven roller, and a driving motor that can drive the wire feeding wheel to rotate is provided on the wire feeding box.

[0010] Furthermore, it also includes a welding head cleaning assembly provided on one side of the supporting frame, the welding head cleaning assembly includes a bracket, a cleaning box is provided on the top of the bracket, an opening is provided between the right side of the top surface of the cleaning box and the top of the right side wall thereof; a support rod is fixedly provided on the right side wall of the cleaning box at the corresponding opening position, and a blowing nozzle is movably connected to the support rod.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows: the circuit board welding device can adjust the inclination angle of the welding gun by removing the bolt between the adjustment hole and the mounting hole, can adjust the wire feeding angle by swinging the wire guide tube, and can adjust the relative position of the wire guide tube and the welding head by removing the locking screw; the position and angle adjustment of the wire guide tube and the welding gun are flexible and convenient, and the structure of the wire guide tube and the welding gun is stable and reliable, thereby improving the welding quality and welding efficiency; when the welding head abuts against the circuit board, the buffer spring buffers the impact force of the welding gun on the circuit board, thereby reducing the impact damage caused by the welding gun to the circuit board; the air is blown to the welding head of the welding gun through the air nozzle, and the welding slag remaining on the welding head is blown into the cleaning box to avoid affecting the quality of the next welding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2 This is an axonometric view of the welding gun assembly and wire feeding box of the utility model;

[0014] Figure 3 This is a schematic diagram of the structure of the welding gun assembly of the utility model;

[0015] Figure 4 This is a partial enlarged view of the welding gun assembly of the utility model;

[0016] Figure 5 This is a schematic diagram of the structure of the hinge of the utility model;

[0017] Figure 6 This is a schematic diagram of the structure of the wire feeding box of the utility model;

[0018] Figure 7 This is a schematic diagram of the structure of the welding head cleaning component of the utility model.

[0019] In the figure: 1, support frame; 2, linear slide; 21, slide seat; 3, linear drive mechanism; 4, welding gun assembly; 41, lifting plate; 411, mounting hole; 42, adjustment plate; 421, adjustment hole; 422, limit block; 423, guide rod; 43, connecting plate; 44, welding gun; 45, wire guide tube 1; 451, wire guide tube head; 46, buffer spring; 47, fixing plate; 471, notch 1; 472, locking screw hole 1; 48. Connecting rod; 49. Hinge; 491. Hinge hole; 492. Locking screw hole 2; 493. Notch 2; 5. Wire feeding mechanism; 51. Wire storage drum; 52. Wire feeding box; 521. Wire feeding wheel; 522. Driven roller; 523. Wire guide tube 2; 524. Wire guide plate; 5241. Wire guide channel; 6. Welding head cleaning assembly; 61. Bracket; 62. Cleaning box; 621. Opening; 63. Air blowing nozzle; 64. Support rod. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example

[0021] See also Figure 1-7 The utility model provides a technical solution: a circuit board welding device, comprising a linear slide 2 disposed horizontally on a support frame 1, a welding gun assembly 4 is disposed on a slide seat 21 of the linear slide 2, and a linear drive mechanism 3 capable of driving the welding gun assembly 4 to move vertically is disposed on the slide seat 21; the linear drive mechanism 3 can be a motor screw slide mechanism or a telescopic cylinder;

[0022] The welding gun assembly 4 includes a lifting plate 41 connected to the driving end of the linear drive mechanism 3, an adjustment plate 42 is provided on the front end surface of the lifting plate 41, and a connecting end plate with an arc structure is provided on the adjusting plate 42, and a plurality of adjustment holes 421 are provided on the connecting end plate along the contour direction thereof, and a mounting hole 411 adapted to the adjustment hole 421 is opened on the lifting plate 41, and the adjustment plate 42 is fixedly connected to the lifting plate 41 by bolts penetrating the adjustment hole 421 and the mounting hole 411;

[0023] A limit block 422 is fixedly provided on the adjusting plate 42 at the lower side of the connecting end plate, a guide rod 423 is fixedly provided on the limit block 422, a connecting plate 43 is slidably nested on the guide rod 423, a buffer spring 46 is sleeved on the guide rod 423 between the limit block 422 and the connecting plate 43, and a limit shoulder is provided at the end of the guide rod 423, and a welding gun 44 is fixedly provided on the connecting plate 43; in this embodiment, the welding gun 44 and the guide rod 423 are both arranged to be tilted downward and parallel to each other;

[0024] The connecting plate 43 is connected to a fixing plate 47, and a connecting rod 48 is provided on the fixing plate 47. A notch 471 is provided at one end of the fixing plate 47 connected to the connecting rod 48 along the axial direction of the connecting rod 48, and a clamping hole adapted to the outer diameter of the connecting rod 48 is provided at the inner end of the notch 471, and the connecting rod 48 passes through and is nested in the clamping hole; a locking screw hole 472 is provided at one end of the fixing plate 47 connected to the connecting rod 48 and perpendicular to the notch 471, and a locking screw 1 is provided in the locking screw hole 472 for contracting and clamping the connecting rod 48 at the notch 471 of the fixing plate 47; the connecting rod 48 is movably connected to a wire guide tube 45 through a hinge 49, and the wire outlet of the wire guide tube 45 is located at the upper end of the welding head of the welding gun 44;

[0025] The slide 21 is also provided with a wire feeding mechanism 5 for feeding wire to the wire guide tube 45, the wire feeding mechanism 5 includes a wire storage barrel 51 and a wire feeding box 52 provided on the slide 21, the wire feeding box 52 is located below the wire storage barrel 51; a wire guide plate 524 is provided at the top end of the wire feeding box 52, and a wire guide channel 5241 is opened at the top end of the wire guide plate 524; a wire guide tube 523 is provided at the bottom end of the wire feeding box 52; a traction roller group for pulling the welding wire is provided between the wire guide plate 524 and the wire guide tube 523 in the wire feeding box 52, the traction roller group includes a wire feeding wheel 521 and a driven roller 522, and a driving motor that can drive the wire feeding wheel 521 to rotate is provided on the wire feeding box 52.

[0026] It also includes a welding head cleaning assembly 6 provided on one side of the support frame 1, and the welding head cleaning assembly 6 includes a bracket 61, a cleaning box 62 is provided on the top of the bracket 61, and an opening 621 is provided between the right side of the top surface of the cleaning box 62 and the top of the right side wall thereof; a support rod 64 is fixedly provided on the right side wall of the cleaning box 62 at a position corresponding to the opening 621, and a blowing nozzle 63 is movably connected to the support rod 64.

[0027] Working principle:

[0028] The linear slide 2 drives the slide 21 to move the welding gun assembly 4 and the wire feeding mechanism 5 to the top of the circuit board to be welded, and the linear driving mechanism 3 drives the welding gun assembly 4 to descend, so that the welding head of the welding gun 44 abuts against the welding part of the circuit board. When the welding head abuts against the circuit board, the buffer spring 46 buffers the impact force of the welding gun 44 on the circuit board; the welding wire on the wire storage barrel 51 is rotated and pulled by the wire feeding wheel 521, and the welding wire pulled between the wire feeding wheel 521 and the driven roller 522 is transported into the wire guide tube 1 45 through the wire guide tube 2 523 until the welding wire contacts the welding head of the welding gun 44, and the welding gun 44 welds the circuit board;

[0029] The inclination angle of the welding gun 44 can be adjusted by removing the bolt between the adjustment hole 421 and the mounting hole 411, and the wire feeding angle can be adjusted by swinging the wire guide tube 45. The notch 471 of the fixing plate 47 is opened by removing the locking screw, so that the connecting rod 48 is released from the clamping hole on the fixing plate 47. The relative position of the wire guide tube 45 and the welding head can be adjusted by axially moving the connecting rod 48. After the position of the wire guide tube 45 is adjusted, the locking screw is tightened again so that the clamping hole clamps the connecting rod 48. The position and angle of the wire guide tube 45 and the welding gun 44 can be adjusted flexibly and conveniently, thereby improving the welding quality and welding efficiency.

[0030] After the circuit board welding is completed, the welding gun 44 is moved to the opening 621 of the cleaning box 62 through the linear slide 2 and the linear drive mechanism 3, and the welding head of the welding gun 44 is blown through the blowing nozzle 63 to blow the welding slag remaining on the welding head into the cleaning box 62 to avoid affecting the quality of the next welding process.

[0031] Furthermore, the hinge 49 is a rectangular ring structure, and hinge holes 491 are provided at the bends at both ends of the hinge 49, a notch 493 is provided on the top surface of the hinge 49, and locking screw holes 492 are provided on both sides of the notch 493 on the top surface of the hinge 49; the connecting rod 48 and the wire guide tube 45 are movably connected to the hinge hole 491 of the hinge 49 through a pin shaft, and the locking screw holes 492 are provided with locking screws that can make the top surface of the hinge 49 close to its bottom surface. Screw No. 2, after the top surface of the hinge 49 is close to its bottom surface, the hinge hole 491 clamps the pin shaft; when the wire guide tube 45 is swung, the top surface of the hinge 49 is separated from its bottom surface by removing the locking screw No. 2 in the locking screw hole 492, so that the hinge hole 491 releases the pin shaft, and then the inclination angle of the wire guide tube 45 can be swung to adjust. After the inclination angle of the wire guide tube 45 is adjusted, the locking screw No. 2 is tightened again to clamp the hinge hole 491 to the pin shaft, and the angle adjustment of the wire guide tube 45 is stable and reliable.

[0032] Furthermore, a wire guide tube head 451 is provided at the end of the wire guide tube 45, the wire inlet of the wire guide tube 45 is larger than the wire outlet of the wire guide tube head 451 at its end, and the wire outlet of the wire guide tube head 451 is adapted to the outer diameter of the welding wire; the wire guide tube 45 has high wire feeding accuracy and is stable and reliable in wire feeding.

[0033] The circuit board welding device disclosed in the present embodiment can adjust the inclination angle of the welding gun 44 by removing the bolt between the adjustment hole 421 and the mounting hole 411, adjust the wire feeding angle by swinging the wire guide tube 45, and adjust the relative position of the wire guide tube 45 and the welding head by removing the locking screw 1; the position and angle adjustment of the wire guide tube 45 and the welding gun 44 are flexible and convenient, and the structure of the wire guide tube 45 and the welding gun 44 is stable and reliable, thereby improving the welding quality and welding efficiency; when the welding head abuts against the circuit board, the buffer spring 46 buffers the impact force of the welding gun 44 on the circuit board, thereby reducing the impact damage caused by the welding gun 44 to the circuit board; the welding head of the welding gun 44 is blown by the blowing nozzle 63 to blow the welding slag remaining on the welding head into the cleaning box 62, so as not to affect the quality of the next welding process.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A circuit board welding device, comprising a linear slide disposed transversely on a support frame, a welding gun assembly disposed on a slide seat of the linear slide, characterized in that: The slide seat is provided with a linear drive mechanism that can drive the welding gun assembly to move vertically; the welding gun assembly includes a lifting plate connected to the driving end of the linear drive mechanism, an adjusting plate is provided on the front side end surface of the lifting plate, and a connecting end plate is provided on the adjusting plate. The connecting end plate is provided with a plurality of adjusting holes, and the lifting plate is provided with mounting holes that match the adjusting holes, and the adjusting plate is fixedly connected to the lifting plate by bolts passing through the adjusting holes and the mounting holes; a limit block is fixedly provided on the adjusting plate at the lower side of the connecting end plate, a guide rod is fixedly provided on the limit block, a connecting plate is provided on the guide rod, and a welding gun is fixedly provided on the connecting plate; a fixing plate is connected to the connecting plate, and a connecting rod is provided on the fixing plate, and the connecting rod is movably connected to a wire guide tube 1 through a hinge, and the wire outlet of the wire guide tube 1 is located at the upper end of the welding head of the welding gun; the slide seat is also provided with a wire feeding mechanism for feeding wire to the wire guide tube 1.

2. A circuit board welding device according to claim 1, characterized in that: A wire guide tube head is provided at the end of the wire guide tube one, the wire inlet of the wire guide tube one is larger than the wire outlet of the wire guide tube head at the end thereof, and the wire outlet of the wire guide tube head is adapted to the outer diameter of the welding wire.

3. A circuit board welding device according to claim 1, characterized in that: The connecting plate is slidably nested on the guide rod, a buffer spring is sleeved on the guide rod between the limiting block and the connecting plate, and a limiting shaft shoulder is arranged at the end of the guide rod.

4. A circuit board welding device according to claim 1, characterized in that: The end of the fixing plate connected to the connecting rod is provided with a notch along the axial direction of the connecting rod, and the inner end of the notch is provided with a clamping hole adapted to the outer diameter of the connecting rod, and the connecting rod passes through and is nested in the clamping hole; the end of the fixing plate connected to the connecting rod is provided with a locking screw hole perpendicular to the notch, and a locking screw is provided in the locking screw hole, which can shrink the notch of the fixing plate and clamp the connecting rod.

5. A circuit board welding device according to claim 1, characterized in that: The hinge is a rectangular ring structure, and hinge holes are provided at the bending parts at both ends of the hinge, the top surface of the hinge is provided with two notches, and two locking screw holes are provided on both sides of the top surface of the hinge located on the two notches; the connecting rod and the wire guide tube are movably connected to the hinge hole of the hinge through a pin shaft, and the two locking screw holes are provided with two locking screws that can make the top surface of the hinge close to its bottom surface.

6. A circuit board welding device according to claim 1, characterized in that: The wire feeding mechanism includes a wire storage drum and a wire feeding box provided on a slide seat, the wire feeding box is located below the wire storage drum; a wire guide plate is provided at the top of the wire feeding box, and a wire guide channel is opened at the top of the wire guide plate; a second wire guide tube is provided at the bottom of the wire feeding box; a traction roller group for pulling the welding wire is provided between the wire guide plate and the second wire guide tube in the wire feeding box, the traction roller group includes a wire feeding wheel and a driven roller, and a driving motor that can drive the wire feeding wheel to rotate is provided on the wire feeding box.

7. A circuit board welding device according to claim 1, characterized in that: It also includes a welding head cleaning assembly provided on one side of the supporting frame, the welding head cleaning assembly includes a bracket, a cleaning box is provided on the top of the bracket, an opening is provided between the right side of the top surface of the cleaning box and the top of the right side wall; a support rod is fixedly provided on the right side wall of the cleaning box at the corresponding opening position, and a blowing nozzle is movably connected to the support rod.

8. A circuit board welding device according to claim 1, characterized in that: The connecting end plate of the adjustment plate is an arc structure, and the plurality of adjustment holes are arranged along the contour direction of the connecting end plate.

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