Positioning welding device for electronic equipment production

Abstract

The invention relates to the technical field of welding devices, and discloses a positioning welding device for electronic equipment production, which comprises a welding frame, a lifting frame and a rotating frame capable of periodically rotating by 60 degrees, and further comprises a directional transmission system, a feeding and discharging station, a pre-checking station, a welding station, a cooling station, a slag removing station and an overturning slag discharging station are sequentially arranged on the welding frame in the clockwise direction, the positioning system comprises an excitation generation component installed on the rotating frame, an excitation frame capable of vertically vibrating in a reciprocating mode is installed on the excitation generation component in a transmission mode, an overturning shaft is rotatably installed on the excitation frame, and the overturning shaft is connected with the rotating frame. A reset torsion spring is arranged at the rotating connection position of the overturning shaft and the vibration excitation frame. Through the innovatively designed directional transmission system, the core functions of 60-degree periodic rotation of the rotating stand, clamp action control, excitation oscillation, turnover deslagging and the like are integrated into a single driving source, and strict synchronization of the switching time sequence of all stations is ensured through meshing transmission of a notch gear, a synchronous toothed belt and a bevel gear.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of welding device, more particularly, the present application relates to a positioning welding device for electronic equipment production. BACKGROUND

[0002] In the prior art, a patent document with publication number CN118893415A discloses an electronic equipment welding tool, which includes two sets of support frames, the upper ends of the two sets of support frames are fixedly provided with workbenches, the inner sides of the two sets of support frames and the upper side of the workbench are provided with fixing mechanisms, the rear side of the workbench and the outer side of the fixing mechanism are provided with cleaning mechanisms, the front side of the workbench and the cleaning mechanism is provided with a cleaning mechanism, the fixing mechanism includes two sets of mounting frames fixedly arranged at the inner side positions of the two sets of workbenches, the above-mentioned device enables the welding device to sequentially weld several sets of fixed electronic equipment, realizes efficient welding, and the electronic equipment can be directly welded on the next piece after the welding work without being taken off from the tool clamp separately, but the above-mentioned device has the following technical problems when in use: The existing welding device relies on independent driving systems for each station switching and function execution, resulting in time sequence misalignment and complex transmission, and the welding residue removal relies on manual or simple mechanical action, with high residue rate and the need for repeated processing, and the preheating and cooling processes lack collaborative control, resulting in large local temperature gradient of the workpiece and easy deformation of the material or coarsening of the weld grain, reducing the mechanical properties; Based on this, the present application provides a positioning welding device for electronic equipment production to solve the technical problems raised in the background art. SUMMARY

[0003] In order to overcome the shortcomings of the prior art, the present application provides a positioning welding device for electronic equipment production, which integrates the core functions of 60° periodic rotation of the turret, clamp action control, excitation oscillation and turnover residue removal into a single driving source through the innovative design of the directional transmission system, and ensures strict synchronization of the switching time sequence of each station through the meshing transmission of the notch gear, synchronous toothed belt and bevel gear.

[0004] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a positioning welding device for electronic equipment production, which comprises a welding frame, a lifting frame and a 60° periodically rotatable turret, and further comprises a directional transmission system, six positioning systems are installed on the turret, and an unloading station, a pre-checking station, a welding station, a cooling station, a residue removal station and a turnover residue removal station are sequentially arranged on the welding frame in a clockwise direction. The positioning system includes a vibration generating component installed on a rotating frame, a vibration frame that can reciprocate up and down is installed on the vibration generating component, a flip shaft is rotatably installed on the vibration frame, a reset torsion spring is provided at the rotation connection between the flip shaft and the vibration frame, a flip frame is installed on the flip shaft, two symmetrically arranged clamping screws are rotatably installed on the flip frame, a clamping shaft is rotatably installed on the flip shaft, the two clamping screws are driven by the clamping shaft, an outer clamp is installed on each of the two clamping screws, the inner sides of the two outer clamps are connected to the inner clamp via an elastic pressure piece, an electric heating rod is integrated on the flip frame, and a semiconductor cooling plate is integrated on the inner clamp; The directional transmission system drives the inner clamp to clamp when it moves from the loading and unloading station to the pre-inspection station, and releases the clamp when it moves from the flipping and slag discharge station to the loading and unloading station; The directional transmission system drives the turning frame to turn 180 degrees at the turning and slag discharge station and drives the vibration frame to oscillate at the pre-inspection station and slag removal station; It also includes a temperature control system, a visual inspection system and an auxiliary system. The temperature control system drives the workpiece to be welded to be preheated at the pre-inspection station and cooled at the cooling station. The auxiliary system is used for auxiliary cleaning and auxiliary slag removal of the workpiece to be welded.

[0005] As a preferred technical solution of the present invention, a double-headed motor is installed on the welding frame, a stepping shaft is rotatably installed on the welding frame, a notched gear is installed on the stepping shaft, a transmission tooth surface is fixedly provided on the notched gear, a stepping shaft is installed at the bottom end of the rotating frame, a driven gear is installed on the stepping shaft, the transmission tooth surface is meshed with the driven gear, the central angle corresponding to the transmission tooth surface is 60°, the driven gear and the notched gear have the same radius, an output shaft end of the double-headed motor is transmission-connected with a first synchronous toothed belt, and the stepping shaft is transmission-connected with the first synchronous toothed belt.

[0006] As a preferred technical solution of the present invention, the positioning system also includes an outer transmission shaft rotatably connected to the excitation frame and an inner transmission shaft rotatably connected to the outer transmission shaft, the outer transmission shaft and the flip shaft are both equipped with a first bevel gear, the two first bevel gears are engaged with each other, the inner transmission shaft and the clamping shaft are both equipped with a second bevel gear, the two second bevel gears are engaged with each other, a transmission bevel gear is installed on the clamping shaft, and the tail ends of the two clamping shafts are both equipped with a passive bevel gear engaged with the transmission bevel gear, the lower part of the outer transmission shaft is equipped with an upper gear, and the lower part of the inner transmission shaft is equipped with a lower gear.

[0007] As a preferred technical solution of the present invention, the vibration generating component includes an excitation shaft rotatably connected to the rotating frame, the tail end of the excitation shaft is equipped with an excitation bevel gear that cooperates with the directional transmission system, an eccentric wheel is installed on the excitation shaft, and a follower wheel is rotatably installed on the excitation frame. The outer cylindrical surface of the eccentric wheel is in rolling contact with the outer peripheral surface of the follower wheel, the excitation frame is slidably connected to the rotating frame, and the top surface of the excitation frame is equipped with a limit spring that is limited by the rotating frame.

[0008] As a preferred technical solution of the present invention, the directional transmission system includes a notched inner gear ring arranged between the loading and unloading station and the pre-inspection station, and a notched outer gear ring arranged between the flipping and slag discharge station and the loading and unloading station. The notched inner gear ring and the notched outer gear ring are both adaptively connected to the lower gear, the notched inner gear ring is arranged on the inner side of the lower gear, and the notched outer gear ring is arranged on the outer side of the lower gear.

[0009] As a preferred technical solution of the present invention, the directional transmission system also includes a rotary sleeve rotatably mounted on the stepping shaft, the rotary sleeve is connected to the first synchronous toothed belt transmission, and a vibration transmission ring and a flip gear ring are respectively installed on the rotary sleeve, and a driving shaft is rotatably mounted on the welding frame and corresponding to the position of the flip slag remover, and a flip gear is installed on the driving shaft, and the flip gear is respectively meshed with the flip gear ring and the upper gear, and the flip gear is arranged between the flip gear ring and the upper gear, and the tooth height of the upper gear is 6 to 10 times the tooth height of the flip gear. A vibration transmission shaft is rotatably mounted on the welding frame and corresponding to the positions of the pre-inspection station, the slag cleaning station and the flip slag removal station, and a guide vibration gear meshed with the vibration transmission ring is fixedly mounted on the vibration transmission shaft, and a vibration transmission bevel gear meshed with the excitation bevel gear is fixedly mounted on the top of the vibration transmission shaft.

[0010] As an optimal technical solution of the present invention, the temperature control system includes a temperature control cylinder, a hot air blower and a cold air blower installed on a lifting frame, a preheating chamber is provided inside the temperature control cylinder and at a position corresponding to the pre-inspection station, the heat outlet port of the hot air blower is connected to the preheating chamber, the temperature control cylinder is provided with a cooling chamber and at a position corresponding to the cooling station, the air outlet port of the cold air blower is connected to the cooling chamber, a through hole is provided on the temperature control cylinder and at positions corresponding to the preheating chamber and the cooling chamber, a follower rotating cylinder is rotatably sleeved on the temperature control cylinder, a ventilation nozzle with openings at both ends is fixedly provided inside the clamping shaft, the tail end of the ventilation nozzle is rotatably connected to a corrugated connecting pipe, the other end of the corrugated connecting pipe is fixedly connected to the follower rotating cylinder, the heating temperature of the electric heating rod is 150°C to 250°C, the air outlet temperature of the hot air blower is 80°C to 120°C, the cooling temperature of the semiconductor refrigeration plate is 5°C to 15°C, and the air outlet temperature of the cold air blower is 10°C to 25°C.

[0011] As a preferred technical solution of the present invention, the auxiliary system includes a hexagonal shaft installed on the other output shaft end of the double-headed motor and a belt shaft rotatably connected to the lifting frame. The interior of the belt shaft is fixed with a hexagonal groove with openings at both ends and slidingly connected to the hexagonal shaft. The cross-sections of the hexagonal shaft and the hexagonal groove are both regular hexagons. A second synchronous toothed belt is installed on the belt shaft for transmission. A sweeping shaft is rotatably installed on the lifting frame at the positions corresponding to the pre-inspection station and the slag cleaning station. The two sweeping shafts are both connected to the second synchronous toothed belt for transmission. The bottom ends of the two sweeping shafts are installed with brush disks, and the bottom surfaces of the brush disks are covered with bristles.

[0012] As a preferred technical solution of the present invention, the visual inspection system includes two visual acquisition probes installed on a lifting frame, and the two visual acquisition probes correspond to the loading and unloading stations and the welding stations respectively. An ultrasonic flaw detector is installed on the lifting frame at a position corresponding to the cooling station. The ultrasonic flaw detector is used for ultrasonic detection of welds. A central control host is installed on the lifting frame, and the data ends of the visual acquisition probe and the ultrasonic flaw detector are both connected to the data of the central control host.

[0013] As a preferred technical solution of the present invention, a group of lifting push rods are installed between the welding frame and the lifting frame, and the elastic pressure member includes a group of T-shaped guide rods installed on the back of the inner clamp, each of the T-shaped guide rods is slidably connected to the outer clamp, and a pressure-relieving spring is provided on the T-shaped guide rod and corresponds to the position between the outer clamp and the inner clamp, and a silicone pad is installed on the inner clamp.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention integrates core functions such as 60° periodic rotation of the turret, clamp movement control, excitation oscillation, and flipping and slag removal into a single drive source through an innovatively designed directional transmission system. The meshing transmission of notched gears, synchronous belts, and bevel gears ensures strict synchronization of the switching timing of each workstation. Compared with the existing technology that relies on multiple independent drive systems and causes timing misalignment and transmission redundancy, the present invention solves the problem of difficult coordination of complex processes through integrated transmission path optimization, effectively improves equipment operating efficiency, and significantly enhances the positioning accuracy and process consistency of electronic equipment welding.

[0015] 2. The present invention combines the dual functions of high-frequency oscillation of the vibration frame and mechanical cleaning of the sweeping shaft brush disk to achieve pre-cleaning of impurities on the workpiece surface and deep removal of welding slag at the pre-inspection station and slag cleaning station respectively. The vibration frame generates high-frequency micro-vibration through the eccentric wheel and follower wheel structure, and cooperates with the rotation of the brush disk to effectively reduce the welding slag residue rate. The 180° flip design of the flip slag removal station cooperates with gravity slag removal to solve the problems of low efficiency and high dead corner residue in traditional manual slag cleaning. Moreover, the device does not require shutdown intervention when working, realizing full process automation.

[0016] 3. The present invention adopts a composite temperature control system with preheating by electric heating rods, uniform heating by hot air blowers and gradient cooling by semiconductor refrigeration plate cold air blowers, combined with the directional airflow design of ventilation nozzles and corrugated connecting pipes, so that the workpiece can be preheated to 100-120℃ before welding, and the cooling rate after welding is precisely controlled at 5-15℃ / s. This technology effectively reduces the local temperature gradient of the workpiece, and then effectively suppresses the thermal stress deformation of the material, and refines the grain size of the weld to below 10μm. At the same time, the temperature control system is linked with vibration cleaning, and the oxide layer is stripped off by air flow and oscillation during the preheating stage, further reducing the cold solder joint rate.

[0017] 4. The present invention integrates a closed-loop detection system consisting of a visual acquisition probe, an ultrasonic flaw detector, and a central control host, which realizes workpiece positioning monitoring, weld appearance quality inspection, and internal defect detection at the loading and unloading, welding, and cooling stations respectively. The central control host adjusts welding parameters and temperature control strategies in real time through data fusion analysis. Compared with traditional manual sampling, the detection efficiency is effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic structural diagram of a positioning welding device for electronic equipment production according to the present invention; Figure 2 This is a schematic structural diagram of the temperature control cylinder and the notched inner gear ring of the present invention; Figure 3 For the present invention Figure 2 Structural diagram from another perspective; Figure 4 This is a schematic structural diagram of the turning frame and upper gear of the present invention; Figure 5 For the present invention Figure 4 Schematic diagram of the local enlarged structure at A in the middle; Figure 6 It is a structural schematic diagram of the clamping screw and the rotating frame of the present invention; Figure 7 For the present invention Figure 6 Schematic diagram of the cross-section structure; Figure 8 For the present invention Figure 7 Schematic diagram of the local enlarged structure at B in the middle; Figure 9 This is a schematic structural diagram of the vibration transmission bevel gear and the driven gear of the present invention; Figure 10 It is a structural schematic diagram of the lifting frame and the air cooler of the present invention.

[0019] In the figure: 1. Welding frame; 2. Lifting frame; 3. Rotating frame; 4. Vibration frame; 5. Flip shaft; 6. Reset torsion spring; 7. Clamping screw; 8. Clamping shaft; 9. External clamp; 10. Elastic pressure member; 11. Internal clamp; 12. Double-head motor; 13. Stepping shaft; 14. Notched gear; 15. Driven gear; 16. External transmission shaft; 17. Internal transmission shaft; 18. Upper gear; 19. Lower gear; 20. Vibration shaft; 21. Vibration bevel gear; 22. Eccentric wheel; 23. Follower wheel; 24. Limit spring; 25. Notched inner gear ring; 26. Notched outer gear ring; 27 , rotating sleeve; 28. Vibration ring gear; 29. ​​Flip ring gear; 30. Drive shaft; 31. Flip gear; 32. Vibration shaft; 33. Vibration guide gear; 34. Vibration bevel gear; 35. Temperature control cylinder; 36. Hot air blower; 37. Cold air blower; 38. Through hole; 39. Follow-up rotary drum; 40. Ventilation nozzle; 41. Corrugated joint pipe; 42. Electric heating rod; 43. Semiconductor refrigeration plate; 44. Hexagonal shaft; 45. Belt shaft; 46. Rotary sweep shaft; 47. Visual acquisition probe; 48. Ultrasonic flaw detector; 49. Lifting push rod; 50. Flip frame; 51. Central control host. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] like Figures 1 to 10 As shown, the present invention provides a positioning welding device for electronic equipment production, comprising a welding frame 1, a lifting frame 2 and a rotating frame 3 capable of rotating at a period of 60°; A set of lifting push rods 49 is installed between the welding frame 1 and the lifting frame 2; A double-headed motor 12 is installed on the welding frame 1, and a stepping shaft 13 is rotatably installed on the welding frame 1. A notched gear 14 is installed on the stepping shaft 13, and a transmission tooth surface is fixedly provided on the notched gear 14. The bottom end of the rotating frame 3 is installed with a stepping shaft 13, and a driven gear 15 is installed on the stepping shaft 13. The transmission tooth surface is meshed with the driven gear 15. The central angle corresponding to the transmission tooth surface is 60°. The driven gear 15 has the same radius as the notched gear 14. An output shaft end of the double-headed motor 12 is transmission-connected with a first synchronous toothed belt, and the stepping shaft 13 is transmission-connected with the first synchronous toothed belt; The double-head motor 12 drives the stepping shaft 13 to rotate through the first synchronous toothed belt, the notch gear 14 on the stepping shaft 13 is engaged with the driven gear 15 on the stepping shaft 13 at the bottom end of the rotating frame 3, and the transmission tooth surface corresponds to a central angle of 60°, which enables the rotating frame 3 to realize accurate 60° period rotation. In the welding process of electronic equipment production, the stable rotation of the rotating frame 3 can drive the positioning system to pass through each station in turn, ensuring that the workpiece to be welded is sequentially subjected to operations such as feeding, pre-inspection, welding, cooling, slag removal and turnover slag removal. Compared with the problems of inaccurate positioning and unstable rotation that may exist in the prior art, the structure ensures the continuity and efficiency of the welding process, greatly improves the production efficiency, and the accurate positioning also helps to improve the welding quality; The rotating frame 3 is provided with six positioning systems, and the welding frame 1 is sequentially provided with a feeding station, a pre-inspection station, a welding station, a cooling station, a slag removal station and a turnover slag removal station in a clockwise direction; The feeding station is provided with a six-degree-of-freedom feeding manipulator for the workpiece to be welded; The welding station is provided with a six-degree-of-freedom welding robot for the workpiece to be welded, which is used to perform welding work on the workpiece to be welded; The positioning system comprises an excitation generating component mounted on the rotating frame 3, a reciprocating vibration excitation frame 4 is driven and mounted on the excitation generating component, a turnover shaft 5 is rotatably mounted on the excitation frame 4, a reset torsional spring 6 is arranged at the rotating connection between the excitation frame 4 and the turnover shaft 5, a turnover frame 50 is mounted on the turnover shaft 5, two symmetrically arranged clamping lead screws 7 are rotatably mounted on the turnover frame 50, and a clamping shaft 8 is rotatably mounted on the turnover shaft 5. Both clamping lead screws 7 are driven through the clamping shaft 8; A transmission bevel gear is mounted on the clamping shaft 8, and a driven bevel gear is mounted at the tail end of each clamping shaft 8 and engaged with the transmission bevel gear; An outer clamp 9 is drivingly mounted on each clamping lead screw 7, and an inner clamp 11 is connected to the inner side of each outer clamp 9 through an elastic pressure element 10; The elastic pressure element 10 comprises a group of T-shaped guide rods mounted on the back of the inner clamp 11, each T-shaped guide rod is in sliding connection with the outer clamp 9, a buffer spring is sleeved on the T-shaped guide rod and corresponds to the position between the outer clamp 9 and the inner clamp 11, and a silica gel pad is mounted on the inner clamp 11; The clamping shaft 8 drives the two symmetrically arranged clamping lead screws 7 to rotate, thereby driving the outer clamp 9 to move. The outer clamp 9 connects the inner clamp 11 through the elastic pressure element 10. When the outer clamp 9 moves, the inner clamp 11 can exert a stable and moderate clamping force on the workpiece under the action of the buffer spring. The silica gel pad can prevent the inner clamp 11 from damaging the surface of the workpiece. In actual work, when the positioning system is located at the feeding station, the inner clamp 11 is loosened to facilitate loading and unloading of the workpiece; When the machine moves to the pre-inspection station, the workpiece is clamped under the action of the directional transmission system to ensure that the workpiece maintains a stable position during the subsequent welding and cooling processes. This solves the problem of welding position deviation caused by loose workpiece clamping in the existing technology, and improves welding accuracy and product quality. The turning frame 50 is integrated with an electric heating rod 42, and the inner clamp 11 is integrated with a semiconductor cooling plate 43; The excitation generating component includes an excitation shaft 20 rotatably connected to the rotating frame 3. The tail end of the excitation shaft 20 is equipped with an excitation bevel gear 21 that cooperates with the directional transmission system. An eccentric wheel 22 is installed on the excitation shaft 20. A follower wheel 23 is rotatably installed on the excitation frame 4. The outer circumference of the eccentric wheel 22 is in rolling contact with the outer circumference of the follower wheel 23. The excitation frame 4 is slidably connected to the rotating frame 3. The top surface of the excitation frame 4 is equipped with a limit spring 24 that is limited by the rotating frame 3. When the exciting shaft 20 rotates, the eccentric wheel 22 rotates accordingly, and the outer contour of the eccentric wheel 22 rolls in contact with the follower wheel 23, causing the exciting frame 4 to vibrate up and down under the action of the limit spring 24, thereby driving the exciting frame 4 to vibrate; At the pre-inspection station and the slag removal station, the vibration of the vibration frame 4 can assist in removing impurities on the workpiece surface and improve the welding quality. At the same time, at the slag removal station, it helps to more thoroughly remove the slag generated by welding. This solves the drawbacks of the existing technology that incomplete cleaning of impurities on the workpiece surface affects the welding effect, and incomplete slag removal leads to product quality problems. Compared with traditional cleaning methods, this vibration-assisted cleaning method is more efficient and comprehensive. The positioning system also includes an outer shaft 16 rotatably connected to the excitation frame 4 and an inner shaft 17 rotatably connected to the outer shaft 16. A first bevel gear is mounted on the outer shaft 16 and the flip shaft 5, and the two first bevel gears are meshed with each other. A second bevel gear is mounted on the inner shaft 17 and the clamping shaft 8, and the two second bevel gears are meshed with each other. An upper gear 18 is mounted on the lower portion of the outer shaft 16, and a lower gear 19 is mounted on the lower portion of the inner shaft 17. The directional transmission system drives the inner clamp 11 to clamp when it moves from the loading and unloading station to the pre-inspection station, and the inner clamp 11 to release the clamp when it moves from the flipping and slag discharge station to the loading and unloading station; The outer transmission shaft 16 and the first bevel gear on the flip shaft 5 are meshed with each other, and the inner transmission shaft 17 and the second bevel gear on the clamping shaft 8 are meshed with each other. This transmission structure enables power to be transmitted effectively. When the directional transmission system is working, it can drive the clamping shaft 8 to rotate through cooperation with the lower gear 19 to achieve the clamping and loosening actions of the inner clamp 11. At the same time, it can also transmit power to the flip frame 50 to achieve operations such as flipping. This structural design is ingenious, ensuring the coordination and stability between various actions. Compared with complex and error-prone transmission methods, it simplifies the transmission path and improves the reliability of equipment operation. The directional transmission system drives the turning frame 50 to turn 180 degrees at the turning and slag removal station and drives the vibration frame 4 to oscillate at the pre-inspection station and the slag removal station; The directional transmission system includes a notched inner gear ring 25 provided between the loading and unloading station and the pre-inspection station, and a notched outer gear ring 26 provided between the flipping and slag discharge station and the loading and unloading station. Both the notched inner gear ring 25 and the notched outer gear ring 26 are adapted to be connected with the lower gear 19. The notched inner gear ring 25 is provided on the inner side of the lower gear 19, and the notched outer gear ring 26 is provided on the outer side of the lower gear 19. The directional transmission system also includes a rotary sleeve 27 rotatably mounted on the stepping shaft 13, the rotary sleeve 27 is connected to the first synchronous toothed belt transmission, and a vibration transmission ring gear 28 and a flip gear ring 29 are respectively installed on the rotary sleeve 27. A driving shaft 30 is rotatably mounted on the welding frame 1 and corresponds to the position of the flip slag remover. A flip gear 31 is installed on the driving shaft 30, and the flip gear 31 is meshed with the flip gear ring 29 and the upper gear 18 respectively. The flip gear 31 is arranged between the flip gear ring 29 and the upper gear 18. The tooth height of the upper gear 18 is 6 to 10 times the tooth height of the flip gear 31. A vibration transmission shaft 32 is rotatably mounted on the welding frame 1 and corresponds to the positions of the pre-inspection station, the slag cleaning station and the flip slag removal station. A guide vibration gear 33 meshing with the vibration transmission ring gear 28 is fixedly mounted on the vibration transmission shaft 32, and a vibration transmission bevel gear 34 meshing with the exciting bevel gear 21 is fixedly mounted on the top of the vibration transmission shaft 32; The notched inner gear ring 25 and the notched outer gear ring 26 are respectively adapted and connected to the lower gear 19. During the rotation of the turret 3, the lower gear 19 meshes with the gear rings at different positions, thereby realizing the action of the inner clamp 11 clamping when the loading and unloading station is transferred to the pre-inspection station and releasing the clamping when the flip slag removal station is transferred to the loading and unloading station, thereby completing the automatic clamping after the welding station is loaded and the automatic releasing of the clamping of the workpiece to be welded; The vibration transmission ring gear 28 and the flip ring gear 29 on the rotating sleeve 27 cooperate with the corresponding gears respectively to drive the flip frame 50 to flip 180 degrees at the flip slag discharge station and the vibration frame 4 to oscillate at the pre-inspection station and the slag cleaning station; Through the oscillation of the pre-inspection station and the slag cleaning station, the workpiece to be welded is brought into oscillating contact with the soft brush on the bottom of the brush plate. The oscillating contact can effectively improve the cleaning intensity of the soft brush on impurities or welding slag on the workpiece to be welded, and can also assist in the vibration shaking off of impurities and residues on the workpiece to be welded. By oscillating the slag removal station, the workpiece to be welded can be turned over to remove the cleanliness of the weld and reduce the residual rate of welding slag on the workpiece to be welded; The directional transmission system accurately controls the action sequence and timing of each component, making the operation of the equipment more intelligent and automated, solving the problem of difficult coordination of various actions in the existing technology, and improving the accuracy and efficiency of production; It also includes a temperature control system, a visual inspection system and an auxiliary system. The temperature control system drives the workpiece to be welded to preheat at the pre-inspection station and cool at the cooling station. The auxiliary system is used for auxiliary cleaning and auxiliary slag removal of the workpiece to be welded.

[0022] The temperature control system includes a temperature control cylinder 35, a hot air blower 36 and a cold air blower 37 installed on the lifting frame 2. A preheating chamber is provided inside the temperature control cylinder 35 at a position corresponding to the pre-inspection station. The heat outlet port of the hot air blower 36 is connected to the preheating chamber. A cooling chamber is provided inside the temperature control cylinder 35 at a position corresponding to the cooling station. The air outlet port of the cold air blower 37 is connected to the cooling chamber. A through hole 38 is provided on the temperature control cylinder 35 at positions corresponding to the preheating chamber and the cooling chamber. A follower rotating cylinder 39 is rotatably provided on the temperature control cylinder 35. A ventilation nozzle 40 with openings at both ends is fixedly provided inside the clamping shaft 8. The tail end of the ventilation nozzle 40 is rotatably connected to a corrugated connecting pipe 41, and the other end of the corrugated connecting pipe 41 is fixedly connected to the follower rotating cylinder 39.

[0023] At the pre-inspection station, the hot air blower 36 sends hot air into the preheating chamber of the temperature control cylinder 35, preheating the workpiece through the through hole 38 and the ventilation nozzle 40, which can reduce the thermal stress of the workpiece during welding and improve the welding quality; At the cooling station, the air cooler 37 sends cold air into the cooling chamber to cool the welded workpiece and prevent deformation of the workpiece due to uneven cooling. The arrangement of the follower drum 39 and the corrugated connecting pipe 41 ensures smooth ventilation, making the temperature control process more stable and effective. Compared with traditional temperature control methods, this system can more accurately control the temperature changes of the workpiece, reduce product defects caused by temperature problems, and improve the product yield rate. The heating temperature of the electric heating rod 42 is 180°C, the air outlet temperature of the hot air blower 36 is 100°C, the cooling temperature of the semiconductor refrigeration sheet 43 is 10°C, and the air outlet temperature of the cold air blower 37 is 10°C; At the pre-inspection station, the electric heating rod 42 and the hot air blower 36 cooperate to preheat the workpiece, reduce the temperature gradient during welding, reduce thermal stress, avoid material deformation or cracks, and thus improve the mechanical properties of the welded joint; In the cooling station, the semiconductor refrigeration plate 43 and the air cooler 37 deliver cold air through the ventilation nozzle 40. The rapid and uniform cooling inhibits the excessive growth of weld grains, reduces residual stress, prevents warping or micro cracks, and ensures the density of the weld.

[0024] The preheating chamber and cooling chamber of the temperature control cylinder 35 are combined with the through hole 38 and the follower rotating cylinder 39 to achieve uniform distribution of heat or cold, avoid local overheating or overcooling, reduce defects such as porosity and lack of fusion, and improve the surface smoothness and aesthetics of the weld.

[0025] In addition, the temperature control system cooperates with the vibration cleaning function of the vibration frame 4 to assist in removing the oxide layer or contaminants on the surface of the workpiece by high-pressure airflow combined with vibration during preheating and slag removal, thereby reducing the risk of false welding and slag inclusion. The system parameters are optimized to adapt to the low-temperature sensitivity of electronic components and the heat treatment requirements of metal materials. Precise temperature control reduces process fluctuations and significantly improves yield.

[0026] In summary, the temperature control system provides comprehensive protection for welding quality through multi-level thermal management and multi-module cooperation from preheating, cooling to cleaning, effectively improving weld strength, appearance consistency, and product reliability. The auxiliary system includes a six-sided shaft 44 mounted on the other output shaft end of the double-head motor 12 and a belt shaft 45 rotatably connected to the lifting frame 2. The belt shaft 45 has a six-sided slot with two open ends and is slidably connected to the six-sided shaft 44. The cross sections of the six-sided shaft 44 and the six-sided slot are regular hexagons. A second synchronous tooth belt is drivingly mounted on the belt shaft 45. A rotating sweep shaft 46 is rotatably mounted on the lifting frame 2 at positions corresponding to the pre-inspection station and the slag removal station. Both rotating sweep shafts 46 are drivingly connected to the second synchronous tooth belt. Both rotating sweep shafts 46 have brush discs mounted at their bottom ends. The bottom surfaces of the brush discs are evenly provided with bristles.

[0027] The six-sided shaft 44 at the other output shaft end of the double-head motor 12 is slidably connected to the six-sided slot of the belt shaft 45, driving the belt shaft 45 to rotate, which in turn drives the rotating sweep shaft 46 to rotate through the second synchronous tooth belt, causing the brush disc to rotate. At the pre-inspection station, the brush disc can clean the surface of the workpiece, removing dust, oil stains, and other impurities to improve the reliability of welding. At the slag removal station, the rotating brush disc can assist in removing welding residues. This auxiliary cleaning and slag removal method is simple, low-cost, and effective, solving the problem of imperfect auxiliary cleaning and slag removal in the prior art and improving product quality and production environment cleanliness. The visual detection system includes two visual acquisition probes 47 mounted on the lifting frame 2. The two visual acquisition probes 47 correspond to the loading and unloading stations and the welding station, respectively. An ultrasonic flaw detector 48 is mounted on the lifting frame 2 at a position corresponding to the cooling station. The ultrasonic flaw detector 48 is used for ultrasonic detection of the weld. A central control host 51 is mounted on the lifting frame 2. The data terminals of the visual acquisition probes 47 and the ultrasonic flaw detector 48 are data-connected to the central control host 51.

[0028] The visual acquisition probe 47 located at the loading and unloading station can monitor the loading and unloading of the workpiece to ensure the accuracy of the workpiece placement position. The visual acquisition probe 47 located at the welding station can monitor the welding process in real time and timely detect welding defects. The ultrasonic flaw detector 48 of the cooling station is used for ultrasonic detection of the weld, and whether there is a defect inside the weld is detected, the detection equipment transmits data to the central control host 51, the central control host 51 analyzes and processes the data, and if a problem is found, an alarm can be sent out in time or the equipment parameters are adjusted, compared with manual detection, the visual detection system has high detection precision and high speed, can timely find product quality problems, avoids unqualified products from flowing into the next process, and improves the stability and reliability of product quality; The working principle and use process of the present application are as follows: The positioning welding device realizes multi-station collaborative operation based on 60° periodic rotation of the rotating frame 3, after starting, the double-head motor 12 drives the stepping shaft 13 to rotate through the first synchronous toothed belt, the notch gear 14 is engaged with the driven gear 15 at the bottom of the rotating frame 3, the design of the transmission tooth surface with a 60° central angle makes the rotating frame 3 rotate accurately, and the six positioning systems are driven to enter the six stations on the welding frame 1 in turn.

[0029] The feeding and discharging station: the manipulator places the workpiece to be welded on the positioning system, at this time, the inner clamp 11 is in the loose clamping state; After the rotating frame 3 rotates 60° and enters the pre-detection station, the notch inner ring gear 25 of the directional transmission system is engaged with the lower gear 19, the clamping shaft 8 is driven to rotate, the outer clamp 9 is tightened through the clamping lead screw 7, the slow compression spring of the elastic pressure element 10 makes the inner clamp 11 clamp the workpiece, at the same time, the electric heating rod 42 and the air blower 36 preheat the workpiece through the ventilation spout 40, and the excitation frame 4 is high-frequency oscillated under the drive of the eccentric wheel 22, and surface impurities are removed; The welding station: the six-degree-of-freedom welding robot performs welding operation, and the visual acquisition probe 47 monitors the welding point position and quality in real time; The cooling station: the semiconductor refrigerating fin 43 and the air cooler 37 work cooperatively, the cold air uniformly cools the weld through the cooling cavity and the ventilation spout 40, and the thermal stress is inhibited; The slag removal station: the excitation frame 4 is oscillated again, and the rotating brush disc is combined to clean, so that the welding slag is completely removed; The turnover slag removal station: the notch outer ring gear 26 of the directional transmission system drives the lower gear 19, the turnover gear 31 is linked with the upper gear 18, the turnover frame 50 is turned over by 180°, the residual welding slag is discharged under the action of gravity and oscillation, and then the inner clamp 11 is loosened and clamped to prepare for the next cycle.

[0030] The temperature control system controls the preheating and cooling throughout the process, the visual detection system and the ultrasonic flaw detector 48 acquire the appearance and internal weld data respectively, and the central control host 51 analyzes and feeds back the adjustment parameters in real time; Each system realizes action cooperation through directional transmission, gear engagement and synchronous belt linkage, ensures that the welding process is efficient and accurate, and finally completes the full-automatic positioning welding and quality control of the electronic equipment workpiece.

[0031] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting; it is not intended to exclude myriad other embodiments of the present application that other inventors can develop based on the same general inventive concepts embodied by the described embodiments. That is, although the present application is described in terms of particular embodiments and illustrative figures, it should be apparent that the scope of the present application is not limited to these specific embodiments.

[0032] While the embodiments of the application have been shown and described herein, it will be understood by those skilled in the art that many changes, modifications, substitutions and alterations to these embodiments can be made without departing from the principles and spirits of the application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A positioning welding device for electronic equipment production, comprising a welding frame (1), a lifting frame (2) and a rotating frame (3) capable of rotating at a cycle of 60°, characterized in that: It also includes a directional transmission system, six positioning systems are installed on the rotating frame (3), and the welding frame (1) is provided with a loading and unloading station, a pre-inspection station, a welding station, a cooling station, a slag cleaning station and a flip slag removal station in a clockwise direction; The positioning system includes a vibration generating component installed on a rotating frame (3), a vibration frame (4) capable of reciprocating up and down vibration is installed on the vibration generating component, a flip shaft (5) is rotatably installed on the vibration frame (4), a reset torsion spring (6) is provided at the rotation connection between the flip shaft (5) and the vibration frame (4), a flip frame (50) is installed on the flip shaft (5), two symmetrically arranged clamping screws (7) are rotatably installed on the flip frame (50), a clamping shaft (8) is rotatably installed on the flip shaft (5), the two clamping screws (7) are both driven by the clamping shaft (8), an outer clamp (9) is installed on the two clamping screws (7), and the inner sides of the two outer clamps (9) are connected to the inner clamp (11) through an elastic pressure member (10); The directional transmission system drives the inner clamp (11) to clamp when the loading and unloading station is transferred to the pre-inspection station, and the inner clamp (11) is released when the turning and slag discharge station is transferred to the loading and unloading station; The directional transmission system drives the turning frame (50) to turn 180 degrees at the turning and slag removal station and drives the vibration frame (4) to oscillate at the pre-inspection station and the slag removal station; It also includes a temperature control system, a visual inspection system and an auxiliary system. The temperature control system drives the workpiece to be welded to be preheated at the pre-inspection station and cooled at the cooling station. The auxiliary system is used for auxiliary cleaning and auxiliary slag removal of the workpiece to be welded.

2. The positioning welding device for electronic equipment production according to claim 1, characterized in that: A double-headed motor (12) is mounted on the welding frame (1), a stepping shaft (13) is rotatably mounted on the welding frame (1), a notch gear (14) is mounted on the stepping shaft (13), a transmission tooth surface is fixedly provided on the notch gear (14), a stepping shaft (13) is mounted on the bottom end of the rotating frame (3), a driven gear (15) is mounted on the stepping shaft (13), the transmission tooth surface is meshed with the driven gear (15), the central angle corresponding to the transmission tooth surface is 60°, the driven gear (15) and the notch gear (14) have the same radius, an output shaft end of the double-headed motor (12) is transmission-connected with a first synchronous toothed belt, and the stepping shaft (13) is transmission-connected with the first synchronous toothed belt.

3. The positioning welding device for electronic equipment production according to claim 1, characterized in that: The positioning system further comprises an outer transmission shaft (16) rotatably connected to the excitation frame (4) and an inner transmission shaft (17) rotatably connected to the outer transmission shaft (16), wherein the outer transmission shaft (16) and the flip shaft (5) are both provided with a first bevel gear, and the two first bevel gears are meshed with each other, the inner transmission shaft (17) and the clamping shaft (8) are both provided with a second bevel gear, and the two second bevel gears are meshed with each other, a transmission bevel gear is provided on the clamping shaft (8), and the tail ends of the two clamping shafts (8) are both provided with a passive bevel gear meshed with the transmission bevel gear, an upper gear (18) is provided at the lower portion of the outer transmission shaft (16), and a lower gear (19) is provided at the lower portion of the inner transmission shaft (17).

4. The positioning welding device for electronic equipment production according to claim 1, characterized in that: The excitation generating component includes an excitation shaft (20) rotatably connected to the rotating frame (3), the tail end of the excitation shaft (20) is equipped with an excitation bevel gear (21) that cooperates with the directional transmission system, the excitation shaft (20) is equipped with an eccentric wheel (22), and a follower wheel (23) is rotatably installed on the excitation frame (4), the outer cylindrical surface of the eccentric wheel (22) is in rolling contact with the outer peripheral surface of the follower wheel (23), the excitation frame (4) is slidably connected to the rotating frame (3), and the top surface of the excitation frame (4) is equipped with a limit spring (24) that is limited by the rotating frame (3).

5. The positioning welding device for electronic equipment production according to claim 1, characterized in that: The directional transmission system comprises a notched inner gear ring (25) arranged between the loading and unloading station and the pre-inspection station, and a notched outer gear ring (26) arranged between the flipping and slag discharge station and the loading and unloading station. The notched inner gear ring (25) and the notched outer gear ring (26) are both adapted to be connected with the lower gear (19). The notched inner gear ring (25) is arranged on the inner side of the lower gear (19), and the notched outer gear ring (26) is arranged on the outer side of the lower gear (19).

6. The positioning welding device for electronic equipment production according to claim 5, characterized in that: The directional transmission system further comprises a rotary sleeve (27) rotatably mounted on the stepping shaft (13), the rotary sleeve (27) being connected to the first synchronous toothed belt transmission, the rotary sleeve (27) being respectively mounted with a vibration transmission ring gear (28) and a flip ring gear (29), a driving shaft (30) being rotatably mounted on the welding frame (1) and corresponding to the position of the flip slag remover, the driving shaft (30) being mounted with a flip gear (31), the flip gear (31) being respectively meshed with the flip ring gear (29) and the upper gear (18 ...8) and the upper gear (18), the flip gear (31) being respectively meshed with the flip ring gear (28) and the upper gear (18), the flip gear (31) being respectively meshed with the flip ring gear (28) and the upper gear (18), the flip gear (31) being respectively meshed with the flip ring gear (28) and the upper gear (18), the flip gear (31) being respectively meshed with the flip ring gear (28) and the upper gear (18), the flip gear (31) being respectively meshed with the flip ring gear (28) and 1) is arranged between the flip gear ring (29) and the upper gear (18), the tooth height of the upper gear (18) is 6 to 10 times the tooth height of the flip gear (31), and a vibration transmission shaft (32) is rotatably installed on the welding frame (1) and corresponding to the pre-inspection station, slag cleaning station and flip slag removal station. A guide vibration gear (33) meshing with the vibration transmission ring (28) is fixedly installed on the vibration transmission shaft (32), and a vibration transmission bevel gear (34) meshing with the exciting bevel gear (21) is fixedly installed on the top end of the vibration transmission shaft (32).

7. The positioning welding device for electronic equipment production according to claim 5, characterized in that: The temperature control system comprises a temperature control cylinder (35), a hot air blower (36) and a cold air blower (37) mounted on the lifting frame (2); a preheating chamber is provided inside the temperature control cylinder (35) and at a position corresponding to the pre-inspection station; a heat outlet port of the hot air blower (36) is communicated with the preheating chamber; a cooling chamber is provided inside the temperature control cylinder (35) and at a position corresponding to the cooling station; an air outlet port of the cold air blower (37) is communicated with the cooling chamber; a through hole (38) is provided on the temperature control cylinder (35) and at positions corresponding to the preheating chamber and the cooling chamber; a follower rotating cylinder (39) is provided on the rotation sleeve of the temperature control cylinder (35); the clamping shaft (8) is provided with a plurality of holes. A ventilation nozzle (40) with openings at both ends is fixedly provided inside, the tail end of the ventilation nozzle (40) is rotatably connected to a corrugated connecting pipe (41), the other end of the corrugated connecting pipe (41) is fixedly connected to the follower rotating drum (39), an electric heating rod (42) is integrated on the turning frame (50), and a semiconductor refrigeration plate (43) is integrated on the inner clamp (11), the heating temperature of the electric heating rod (42) is 150°C to 250°C, the air outlet temperature of the hot air blower (36) is 80°C to 120°C, the cooling temperature of the semiconductor refrigeration plate (43) is 5°C to 15°C, and the air outlet temperature of the cold air blower (37) is 10°C to 25°C.

8. The positioning welding device for electronic equipment production according to claim 5, characterized in that: The auxiliary system comprises a hexagonal shaft (44) mounted on the other output shaft end of the double-headed motor (12) and a belt shaft (45) rotatably connected to the lifting frame (2), wherein the interior of the belt shaft (45) is fixedly provided with a hexagonal groove with two ends opened and slidably connected to the hexagonal shaft (44), and the cross sections of the hexagonal shaft (44) and the hexagonal groove are both regular hexagons, and a second synchronous toothed belt is installed on the belt shaft (45), and a rotary sweeping shaft (46) is rotatably installed on the lifting frame (2) at positions corresponding to the pre-inspection station and the slag cleaning station, and the two rotary sweeping shafts (46) are both connected to the second synchronous toothed belt, and the bottom ends of the two rotary sweeping shafts (46) are both installed with brush discs, and the bottom surfaces of the brush discs are covered with bristles.

9. The positioning welding device for electronic equipment production according to claim 5, characterized in that: The visual inspection system includes two visual acquisition probes (47) installed on a lifting frame (2), the two visual acquisition probes (47) corresponding to the loading and unloading stations and the welding station respectively, an ultrasonic flaw detector (48) is installed on the lifting frame (2) at a position corresponding to the cooling station, the ultrasonic flaw detector (48) is used for ultrasonic detection of welds, a central control host (51) is installed on the lifting frame (2), and the data ends of the visual acquisition probes (47) and the ultrasonic flaw detector (48) are both data-connected to the central control host (51).

10. The positioning welding device for electronic equipment production according to claim 1, characterized in that: A group of lifting push rods (49) are installed between the welding frame (1) and the lifting frame (2), and the elastic pressure member (10) includes a group of T-shaped guide rods installed on the back of the inner clamp (11), each of the T-shaped guide rods is slidably connected to the outer clamp (9), and a pressure-relieving spring is sleeved on the T-shaped guide rod and corresponds to the position between the outer clamp (9) and the inner clamp (11), and a silicone pad is installed on the inner clamp (11).

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