Automatic welding equipment for electronic instrument manufacturing

Abstract

The invention discloses automatic welding equipment for electronic instrument manufacturing, and belongs to the technical field of automatic welding, the automatic welding equipment comprises a welding table used for placing a handheld metal detector and an intermittent conveyor belt used for conveying a copper coil, and the top end of the welding table is fixedly connected with an end arc limiting plate; side limiting assemblies used for limiting and positioning the two sides of the handheld metal detector are arranged on the left side and the right side of the end arc limiting plate correspondingly. Through the arrangement of the steering assembly and the oval grabbing frame, the induction copper coil to be welded can be synchronously moved to the position over the handheld metal detector, position limiting of two parts before welding is rapidly completed, the overall efficiency of the welding process is effectively improved, meanwhile, through the arrangement of the wire holding assembly and the twisting gear ring, the welding quality is improved, and the welding quality is improved. The two half-table-shaped columns and the two electromagnetic pressing plates can be used for straightening and limiting a copper wire, then the copper wire is driven by the twisting gear ring to rotate, a certain twist degree is applied to the end of the copper wire, and the thin copper wire is prevented from bending and deviating in the welding process.

Description

Technical Field

[0001] The invention relates to the technical field of automatic welding, and in particular to automatic welding equipment for manufacturing electronic instruments. Background Art

[0002] Handheld metal detectors are a type of metal detector, named for the way they are used, and are mainly used for security checks at venues and to prevent cheating in examination rooms. Compared with security doors, handheld metal detectors are more accurate. They alarm through electromagnetic induction of metal objects, and the main alarm methods are sound, light, and vibration.

[0003] The handheld metal detector includes an induction copper coil. During manufacturing, a welding worker is required to weld two copper wires on the induction copper coil to the circuit board respectively. However, during welding, the welding worker is usually required to straighten the connection terminal of the coil first, and then place it on the welding point of the circuit board for welding, which makes the welding efficiency low. In addition, since the coil used in the handheld metal detector is generally a thinner copper wire, it is easy to have a slight jitter polarization when welding with a handheld soldering iron. When jittering, if the welding end of the soldering iron touches the thin copper wire of the connection terminal of the coil, it is easy to cause the thin copper wire to bend and deviate, or even melt the copper wire, resulting in low welding quality. Therefore, an automatic welding device for electronic instrument manufacturing is proposed. Summary of the invention

[0004] The purpose of the present invention is to solve the problem that in the prior art, the welding worker straightens the wiring terminal of the coil first and then places it on the welding point of the circuit board for welding, which makes the welding efficiency low. In addition, since the coil used in the handheld metal detector is generally a thinner copper wire, it is easy to have a slight jitter polarization when the handheld electric soldering iron is welding, and the copper wire is easy to bend and deviate when touching the wiring terminal of the coil, or even melt the copper wire, resulting in low welding quality. An automatic welding device for electronic instrument manufacturing is proposed.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: An automatic welding device for electronic instrument manufacturing, comprising a welding table for placing a handheld metal detector and an intermittent conveyor belt for conveying copper coils, wherein an end arc limiting plate is fixedly connected to the top of the welding table, and side limit components for limiting and positioning the handheld metal detector on both sides are arranged on the left and right sides of the end arc limiting plate, and an electric control guide rail is arranged above the intermittent conveyor belt, and the electric control guide rail is connected to an elliptical grabbing frame through a steering assembly to facilitate the grabbing and placement of the copper coil, and a plurality of grabbing grooves are opened on the inner side wall of the elliptical grabbing frame, and the inner side wall of the grabbing groove is connected to a mechanical gripper through a control seat; A cavity is provided on the inner wall of the elliptical grabbing frame on the side away from the electric control guide rail, and a wire separator assembly for separating the two welding copper wires of the copper coil is provided on the outer side of the cavity, two opposite wire suction buckets are provided below the wire separator assembly, and a wire reeling tube is connected to the narrow end of the wire suction bucket, and two opposite guide grooves are provided on the inner wall of the wire reeling tube, and a wire holding assembly is connected to the inner wall of the guide groove, and a twisting double-sided rack is provided between the two wire reeling tubes, and twisting tooth rings for increasing the twist of the welding copper wire are provided on both sides of the twisting double-sided rack.

[0006] Preferably, the side limit assembly consists of a right-angle pressure plate and a curved pressure plate, the end of the right-angle pressure plate is connected to the side wall of the curved pressure plate through a universal telescopic joint, the top of the welding platform is fixedly connected to the side wall of the right-angle pressure plate through a hydraulic push rod, and two mutually symmetrical inclined slide grooves are provided on the top of the welding platform, and the bottom end of the curved pressure plate is slidably connected to the inner wall of the inclined slide groove through a sliding ball.

[0007] Preferably, the steering assembly consists of a steering gear and a retaining rack, the top of the welding table is fixedly connected to the end of the electric control guide rail through a fixed plate, the bottom of the welding table is fixedly connected to a plurality of supports, the inner side wall of the electric control guide rail is slidably connected to a sliding seat, and the bottom end of the sliding seat is rotatably connected to the top of the steering gear through a rotating shaft.

[0008] Preferably, the steering gear is meshed with the retaining rack, the side wall of the retaining rack is fixedly connected to the outer side wall of the electric control guide rail through a fixing rod, and the bottom end of the steering gear is fixedly connected to the outer side wall of the elliptical grabbing frame close to the electric control guide rail through an adapter plate.

[0009] Preferably, the inner side wall of the grabbing groove of the elliptical grabbing frame is connected to the mechanical gripper through a control seat, a micro air pump is arranged in the cavity of the elliptical grabbing frame, an inverted U fixing plate is arranged on one side of the cavity of the elliptical grabbing frame, and the bottom end of the inverted U fixing plate is connected to an electric soldering iron through an automated mechanical arm.

[0010] Preferably, the wire separator assembly comprises a clamp-shaped frame arranged on the inner side of an elliptical grabbing frame, the inner side wall of the cavity of the elliptical grabbing frame is fixedly connected to a barrier cover, the outward side wall of the barrier cover is respectively connected to two electromagnetic beads through two symmetrical right-angle guide rods, both ends of the clamp-shaped frame are fixedly connected to permanent magnetic beads, and a torsion spring is arranged on the pin shaft for rotation in the clamp-shaped frame.

[0011] Preferably, the elliptical grabbing frame is fixedly connected to a hanging plate on the outer wall on one side of the cavity, the hanging plate is interconnected with the micro air pump in the cavity, the bottom end of the hanging plate is fixedly connected to a forked limit seat through an adjustment mechanical arm, and the forked limit seat is rotatably connected to the outer walls of the two winding tubes through two sleeves.

[0012] Preferably, the wire holding assembly consists of two semi-trapezoidal columns and two electromagnetic pressure plates, the outer wall of the semi-trapezoidal column is slidably connected to the inner wall of the guide groove on the inner wall of the wire reel through a sliding guide rod, a half hole for threading the wire is opened at the axis of the semi-trapezoidal column, and the end of the semi-trapezoidal column is slidably connected to the electromagnetic pressure plate through two limiting sliding columns.

[0013] Preferably, the outer wall of the wire winding tube is fixedly connected to the inner wall of the twisting tooth ring, the bottom end of the forked limit seat is fixedly connected to an adjusting push rod through a mounting plate, the output end of the adjusting push rod is fixedly connected to the bottom end of the twisting double-sided rack, and the two sides of the twisting double-sided rack are respectively meshed with two twisting tooth rings.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. This solution can quickly complete the positioning and limiting of the handheld metal detector by setting the end arc limit plate and the side limit assembly, using the successive movement of the right-angle pressure plate and the arc pressure plate, so that the welding point can be directly and stably welded during automatic welding, which is convenient for the subsequent completion of the welding between the induction copper coil and the circuit board.

[0015] 2. Through the setting of the steering assembly and the elliptical grab frame, this solution can synchronously move the induction copper coil to be welded to the top of the handheld metal detector, quickly complete the position limitation of the two components before welding, shorten the limiting time before welding, and effectively improve the overall efficiency of the welding process.

[0016] 3. Through the setting of the wire holding assembly and the twisting tooth ring, this scheme can use two semi-cone-shaped columns and two electromagnetic pressure plates to straighten and limit the copper wire, and then use the twisting tooth ring to drive the rotation of the copper wire to apply a certain twist to the end of the copper wire, so as to avoid the bending and deviation of the thinner copper wire during welding, thereby ensuring the subsequent welding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional structural schematic diagram of an automatic welding device for electronic instrument manufacturing proposed by the present invention; Figure 2 An assembly diagram of an automatic welding device for electronic instrument manufacturing proposed by the present invention; Figure 3 for Figure 2 The enlarged view of point A in the middle; Figure 4 for Figure 2 The enlarged view of point B in the middle; Figure 5 This is a schematic diagram of the structure of a side limit assembly in an automatic welding device for electronic instrument manufacturing proposed by the present invention; Figure 6 This is a structural schematic diagram of the position of the retaining rack in an automatic welding device for electronic instrument manufacturing proposed by the present invention; Figure 7 for Figure 6 Enlarged view of point C in the middle; Figure 8 This is a structural schematic diagram of a steering assembly in an automatic welding device for electronic instrument manufacturing proposed by the present invention; Fig. 9 This is a structural schematic diagram of the positions of the clamp frame and two electromagnetic beads in an automatic welding device for electronic instrument manufacturing proposed by the present invention; Fig.10 This is a structural schematic diagram of the initial position of a wire holding component in an automatic welding device for electronic instrument manufacturing proposed by the present invention; Fig.11 This is a structural schematic diagram of the position of the wire holding assembly after the copper wire is straightened in an automatic welding device for electronic instrument manufacturing proposed by the present invention; Fig.12 for Fig.11 Enlarged view of point D in the middle.

[0018] In the figure: 1. welding table; 2. intermittent conveyor belt; 3. hand-held metal detector; 4. end arc limit plate; 5. hydraulic push rod; 6. right-angle pressure plate; 7. universal telescopic joint; 8. arc pressure plate; 9. electric control guide rail; 10. sliding seat; 11. steering gear; 12. retaining rack; 13. adapter plate; 14. elliptical grab frame; 15. control seat; 16. mechanical gripper; 17. barrier cover; 18. electromagnetic bead; 19. clamp frame; 20. permanent magnetic bead; 21. hanging plate; 22. adjustment robot arm; 23. forked limit seat; 24. sleeve; 25. wire reel; 26. wire suction bucket; 27. adjustment push rod; 28. twisting double-sided rack; 29. ​​twisting gear ring; 30. sliding guide rod; 31. semi-table column; 32. limit sliding column; 33. electromagnetic pressure plate; 34. electric soldering iron. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0020] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "mounted / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] Example, see Figures 1 to 12 , an automatic welding device for electronic instrument manufacturing, comprising a welding table 1 for placing a handheld metal detector 3 and an intermittent conveyor belt 2 for conveying copper coils, an end arc limiting plate 4 is fixedly connected to the top of the welding table 1, and side limit components for limiting and positioning the two sides of the handheld metal detector 3 are arranged on the left and right sides of the end arc limiting plate 4, wherein when the copper coils on the intermittent conveyor belt 2 are placed, the copper wire end for welding is placed in the direction of the welding table 1, and the connection terminals of the two copper wires are separated; Furthermore, the side limit assembly is composed of a right-angle pressure plate 6 and a curved pressure plate 8. The end of the right-angle pressure plate 6 is connected to the side wall of the curved pressure plate 8 through a universal telescopic joint 7. The top of the welding platform 1 is fixedly connected to the side wall of the right-angle pressure plate 6 through a hydraulic push rod 5. Two mutually symmetrical inclined slide grooves are provided on the top of the welding platform 1. The bottom end of the curved pressure plate 8 is slidably connected to the inner side wall of the inclined slide groove through a sliding ball. The curved pressure plate 8 is closer to the handheld metal detector 3 than the right-angle pressure plate 6. It should be noted that: the handheld metal detector 3 in the unsealed state is placed horizontally on the welding table 1, and the detection end of the handheld metal detector 3 is made to contact the arc surface of the end arc limiting plate 4, and then the hydraulic push rods 5 on both sides are started to push the right-angle pressure plate 6. The movement of the right-angle pressure plate 6 will drive the arc surface pressure plate 8 to slide in the inclined slide groove through the universal telescopic joint 7. The universal telescopic joint 7 is used for distance compensation and angle compensation of the oblique movement of the arc surface pressure plate 8. During the movement, the arc surface pressure plate 8 will first contact the inner arc surface connecting the handle end and the detection end of the handheld metal detector 3, and complete the positioning of the handheld metal detector 3 by the end arc limiting plate 4 and the two arc surface pressure plates 8, and then the two right-angle pressure plates 6 are pressed and clamped to complete the stable limit of the handheld metal detector 3. Based on the above advantages, the right-angle pressing plate 6 and the arc pressing plate 8 can be used to quickly position and limit the handheld metal detector 3, so that the welding point can be directly welded stably during automatic welding, which is convenient for subsequent welding between the induction copper coil and the circuit board; An electric control guide rail 9 is arranged above the intermittent conveyor belt 2, and the electric control guide rail 9 is connected to an elliptical grabbing frame 14 through a steering assembly, so as to facilitate the grabbing and placement of the copper coil. A plurality of grabbing grooves are provided on the inner side wall of the elliptical grabbing frame 14, and a mechanical gripper 16 is connected to the inner side wall of the grabbing groove through a control seat 15; Furthermore, the steering assembly is composed of a steering gear 11 and a retaining rack 12. The top of the welding table 1 is fixedly connected to the end of the electric control rail 9 through a fixed plate. The bottom of the welding table 1 is fixedly connected to a plurality of supports. The inner wall of the electric control rail 9 is slidably connected to a sliding seat 10. The bottom end of the sliding seat 10 is rotatably connected to the top of the steering gear 11 through a rotating shaft. The steering gear 11 is meshed with the retaining rack 12. The side wall of the retaining rack 12 is fixedly connected to the outer wall of the electric control rail 9 through a fixing rod. The steering gear 1 The bottom end is fixedly connected to the outer side wall of the elliptical grabbing frame 14 near the electric control guide rail 9 through the adapter plate 13, the inner side wall of the grabbing groove of the elliptical grabbing frame 14 is connected to the mechanical gripper 16 through the control seat 15, a micro air pump is arranged in the cavity of the elliptical grabbing frame 14, an inverted U fixing plate is arranged on one side of the cavity of the elliptical grabbing frame 14, and the bottom end of the inverted U fixing plate is connected to the electric soldering iron 34 through an automatic mechanical arm, and the automatic mechanical arm is a prior art and can control the automatic welding of the electric soldering iron 34; It should be noted that: in the process of fixing the handheld metal detector 3, the electric control guide rail 9 is synchronously started to allow the sliding seat 10 to move outward along the direction of the retaining rack 12. The movement of the sliding seat 10 will synchronously drive the steering gear 11 and the elliptical grabbing frame 14 to move together. The steering gear 11 will rotate while traveling on the meshing retaining rack 12, thereby driving the elliptical grabbing frame 14 to rotate outward, and the elliptical grabbing frame 14 is rotated to the top of the intermittent conveyor belt 2. At this time, the intermittent conveyor belt 2 is controlled to stop just right, and the limited induction copper coil to be assembled is transported to the bottom of the elliptical grabbing frame 14. Then, the multiple mechanical grippers 16 in the elliptical grabbing frame 14 are started to grab and clamp the multiple positions of the induction copper coil. Then, the sliding seat 10 is slid and reset on the electric control guide rail 9, so that the elliptical grabbing frame 14 drives the grabbed induction copper coil to move back to the top of the handheld metal detector 3. The above benefits are as follows: the induction copper coil to be welded can be synchronously moved to the top of the handheld metal detector 3, and the position limitation of the two parts before welding can be quickly completed, which shortens the limiting time before welding and effectively improves the overall efficiency of the welding process; A cavity is provided on the inner side wall of the elliptical grabbing frame 14 away from the electric control guide rail 9, and a wire separator assembly for separating two welding copper wires of the copper coil is provided on the outer side of the cavity, and two opposite wire suction buckets 26 are provided below the wire separator assembly, and a wire drawing tube 25 is connected to the narrow end of the wire suction bucket 26, and two opposite guide chutes are provided on the inner side wall of the wire drawing tube 25, and a wire holding assembly is connected to the inner side wall of the guide chutes, and a twisting double-sided rack 28 is provided between the two wire drawing tubes 25, and twisting tooth rings 29 for increasing the twist of the welding copper wire are provided on both sides of the twisting double-sided rack 28; Furthermore, the wire separator assembly includes a clamp frame 19 arranged on the inner side of the elliptical grabbing frame 14, the inner side wall of the cavity of the elliptical grabbing frame 14 is fixedly connected to a barrier cover 17, the outward side wall of the barrier cover 17 is respectively connected to two electromagnetic beads 18 through two symmetrical right-angle guide rods, both ends of the clamp frame 19 are fixedly connected to permanent magnetic beads 20, and a torsion spring is arranged on the pin shaft for rotation in the clamp frame 19, and the outer side wall of the elliptical grabbing frame 14 on one side of the cavity is fixedly connected to a hanging plate 21, the hanging plate 21 is connected to the micro air pump in the cavity, and the bottom end of the hanging plate 21 is fixedly connected to a forked limit seat 23 through an adjustment mechanical arm 22, and the forked limit seat 23 is respectively connected to the two through two sleeves 24. The outer wall of the wire drawing tube 25 is rotatably connected, and the wire holding assembly is composed of two semi-trapezoidal columns 31 and two electromagnetic pressure plates 33. The outer wall of the semi-trapezoidal column 31 is slidably connected to the inner wall of the guide slide groove on the inner wall of the wire drawing tube 25 through a sliding guide rod 30. The axis of the semi-trapezoidal column 31 is provided with a threading half hole. The end of the semi-trapezoidal column 31 is slidably connected to the electromagnetic pressure plate 33 through two limiting sliding columns 32. The outer wall of the wire drawing tube 25 is fixedly connected to the inner wall of the twisting tooth ring 29. The bottom end of the forked limiting seat 23 is fixedly connected with an adjusting push rod 27 through a mounting plate. The output end of the adjusting push rod 27 is fixedly connected to the bottom end of the twisting double-sided rack 28. The two sides of the twisting double-sided rack 28 are respectively meshed with the two twisting tooth rings 29. It should be noted that: the micro air pump in the cavity of the elliptical grabbing frame 14 is then started, so that an inhaled airflow is generated at the barrier cover 17, and the two copper wires on the induction copper coil are moved to the barrier cover 17 with the airflow, and then the two electromagnetic beads 18 are energized, and the two permanent magnetic beads 20 on the clamp frame 19 are magnetically attracted to each other, so that the clamp frame 19 is unfolded and the electromagnetic beads 18 and the permanent magnetic beads 20 are magnetically attracted together, wherein the wiring terminals of the copper wires will be in a horizontal state separated from the left and right under the action of the airflow only, thereby separating the two copper wire wiring terminals in a horizontal state with the airflow movement in the annular structure composed of the right-angle guide rods on the left and right sides and the unfolded clamp frame 19, and limiting the wiring terminals of the two copper wires; Then, the wire suction bucket 26 is moved to the annular structure composed of the right-angle guide rod and the unfolding clamp frame 19 by adjusting the mechanical arm 22. After the movement is completed, the airflow suction at the barrier cover 17 is stopped, and the micro air pump is used to make the wire suction bucket 26 generate suction airflow through the hanging plate 21 and the hose, and the copper wire staying in the annular structure composed of the right-angle guide rod and the unfolding clamp frame 19 is sucked into the wire winding tube 25. Then, the power supply of the electromagnetic bead 18 is disconnected, and the annular structure is opened, so that the copper wire is continuously sucked in, and the guide slide is The structure of the electric control guide groove can control the side wall of the sliding guide rod 30 to slide on the inner wall of the guide groove. After the copper wire is sucked in, the sliding guide rod 30 is used to control the semi-trapezoidal column 31 to slide in the guide groove, so that the two semi-trapezoidal columns 31 fit each other. The soft rubber material in the semi-trapezoidal column 31 will compress the copper wire, and the copper wire will be straightened in the wire straightening tube 25 during the movement. The length of the copper wire used for welding on the mass-produced copper coils is controlled to be consistent. When the semi-trapezoidal column 31 moves to the straightening tube 25, the copper wire will be straightened. After the end of the wire tube 25 is connected, the end of the copper wire used for welding will be exposed outside. At this time, the two electromagnetic pressure plates 33 are energized to allow the electromagnetic pressure plates 33 to press and limit the end of the straightened copper wire, and then the adjusting push rod 27 is started. The adjusting push rod 27 is a hydraulically driven push rod structure. The adjusting push rod 27 pushes the twisting double-sided rack 28 to rotate the twisting tooth rings 29 engaged on both sides. The rotation of the twisting tooth ring 29 will drive the wire straightening tube 25 to rotate in the sleeve 24, and the rotation of the wire straightening tube 25 will drive the two The semi-cone-shaped column 31 and the two electromagnetic pressure plates 33 slightly twist the copper wire so that the end of the copper wire has a certain twist, thereby improving the strength of the end of the copper wire and making it difficult to bend. Before welding, the adjacent magnetic poles of the two electromagnetic pressure plates 33 are controlled to be the same, and the two electromagnetic pressure plates 33 are mutually repelled and separated to expose the end of the copper wire. Then, the twisted copper wire is led to the welding contact point on the circuit board in the handheld metal detector 3 by adjusting the mechanical arm 22, and the electric soldering iron 34 is used to perform precise welding; The above advantages are as follows: the two semi-cone-shaped columns 31 and the two electromagnetic pressure plates 33 can be used to straighten and limit the copper wire, and then the twisting tooth ring 29 can be driven to rotate to apply a certain twist to the end of the copper wire, thereby preventing the thinner copper wire from bending and deflecting during welding, thereby ensuring the subsequent welding quality; When the present invention is in use, the handheld metal detector 3 in an unsealed state is placed horizontally on the welding table 1, and the detection end of the handheld metal detector 3 is made to contact the arc surface of the end arc limiting plate 4, and then the hydraulic push rods 5 on both sides are started to push the right-angle pressure plate 6. The movement of the right-angle pressure plate 6 will drive the arc surface pressure plate 8 to limit and slide in the inclined slide groove through the universal expansion joint 7. The universal expansion joint 7 is used for distance compensation and angle compensation of the oblique movement of the arc surface pressure plate 8. During the movement, the arc surface pressure plate 8 will first contact the inner arc surface connecting the handle end and the detection end of the handheld metal detector 3 to complete the position positioning of the handheld metal detector 3 by the end arc limiting plate 4 and the two arc surface pressure plates 8, and then the two right-angle pressure plates 6 are pressed and clamped to complete the stable limiting of the handheld metal detector 3. In this way, the right-angle pressure plate 6 and the arc surface pressure plate 8 can be used to quickly complete the positioning and limiting of the handheld metal detector 3, so that the welding point can be directly and stably welded during automatic welding, which is convenient for subsequent completion of welding between the induction copper coil and the circuit board; In the process of fixing the hand-held metal detector 3, the electric control guide rail 9 is synchronously started to allow the sliding seat 10 to move outward along the direction of the retaining rack 12. The movement of the sliding seat 10 will synchronously drive the steering gear 11 and the elliptical grabbing frame 14 to move together. The steering gear 11 will rotate while moving on the meshing retaining rack 12, thereby driving the elliptical grabbing frame 14 to rotate outward, and the elliptical grabbing frame 14 is rotated to the top of the intermittent conveyor belt 2. At this time, the intermittent conveyor belt 2 is controlled to stop just in time, and the limited induction copper coil to be assembled is transported to the elliptical grabbing frame 14, and then the multiple mechanical grippers 16 in the elliptical gripping frame 14 are started to grab and clamp the multiple positions of the induction copper coil, and then the sliding seat 10 is slid and reset on the electric control guide rail 9, so that the elliptical gripping frame 14 drives the grabbed induction copper coil to move and recover to the top of the handheld metal detector 3, so that the induction copper coil to be welded can be moved to the top of the handheld metal detector 3 synchronously, and the position limitation of the two parts before welding is quickly completed, which shortens the limiting time before welding and effectively improves the overall efficiency of the welding process; Then, the micro air pump in the cavity of the elliptical grabbing frame 14 is started to generate an inhaled airflow at the barrier cover 17, so that the two copper wires on the induction copper coil move to the barrier cover 17 with the airflow, and then the two electromagnetic beads 18 are energized to attract the two permanent magnetic beads 20 on the clamp frame 19 to each other, so that the clamp frame 19 is unfolded and the electromagnetic beads 18 and the permanent magnetic beads 20 are magnetically attracted together, wherein the wiring terminals of the copper wires will be in a horizontal state separated from the left and right under the action of the airflow only, thereby separating the two copper wire wiring terminals in a horizontal state moving with the airflow into a ring structure composed of the right-angle guide rods on the left and right sides and the unfolded clamp frame 19, and limiting the wiring terminals of the two copper wires; Then, the wire suction bucket 26 is moved to the annular structure composed of the right-angle guide rod and the unfolding clamp frame 19 by adjusting the mechanical arm 22. After the movement is completed, the airflow suction at the barrier cover 17 is stopped, and the micro air pump is used to make the wire suction bucket 26 generate suction airflow through the hanging plate 21 and the hose, and the copper wire staying in the annular structure composed of the right-angle guide rod and the unfolding clamp frame 19 is sucked into the wire reel 25. Then, the power supply of the electromagnetic bead 18 is disconnected, and the annular structure is opened to allow the copper wire to be continuously sucked in. The guide groove is an electrically controlled guide groove structure, which can control the side wall of the sliding guide rod 30 to slide on the inner wall of the guide groove. After the wire is sucked in, the sliding guide rod 30 is used to control the semi-cone-shaped column 31 to slide in the guide slot, so that the two semi-cone-shaped columns 31 fit each other, and the soft rubber material in the semi-cone-shaped column 31 will press the copper wire, and the copper wire will be straightened in the wire-straightening tube 25 during the movement. The length of the copper wire used for welding on the mass-produced copper coils is controlled to be consistent. After the semi-cone-shaped column 31 moves to the end of the wire-straightening tube 25, the end of the copper wire used for welding will be exposed outside. At this time, the two electromagnetic pressure plates 33 are energized, so that the electromagnetic pressure plates 33 can press and limit the straightened ends of the copper wires. Then, the adjusting push rod 27 is started again. The adjusting push rod 27 is a hydraulically driven push rod structure. The adjusting push rod 27 pushes the twisting double-sided rack 28 to rotate the twisting tooth rings 29 on both sides. The rotation of the twisting tooth rings 29 drives the wire drawing tube 25 to rotate in the sleeve 24. The rotation of the wire drawing tube 25 drives the two semi-cone-shaped columns 31 and the two electromagnetic pressure plates 33 to slightly twist the copper wire, so that the end of the copper wire has a certain twist, thereby improving the strength of the end of the copper wire, making it not easy to bend. Before welding, control the two electric The adjacent ends of the magnetic pressure plates 33 have the same magnetic poles, which repel and separate from each other to expose the ends of the copper wires. Subsequently, the twisted copper wires are led to the soldering contacts on the circuit board inside the handheld metal detector 3 by adjusting the mechanical arm 22, and precise soldering is performed by an electric soldering iron 34. In this way, the two semi-conical columns 31 and the two electromagnetic pressure plates 33 can be used to straighten and limit the copper wires, and then the twisting tooth ring 29 is used to drive the copper wires to rotate, so as to apply a certain twist to the ends of the copper wires, thereby preventing the thinner copper wires from bending and deviating during welding, thereby ensuring the subsequent welding quality.

[0023] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An automatic welding device for electronic instrument manufacturing, comprising a welding table (1) for placing a handheld metal detector (3) and an intermittent conveyor belt (2) for conveying copper coils, characterized in that: The top of the welding table (1) is fixedly connected to an end arc limiting plate (4), and the left and right sides of the end arc limiting plate (4) are provided with side limiting components for limiting and positioning the two sides of the handheld metal detector (3). An electric control guide rail (9) is provided above the intermittent conveyor belt (2), and the electric control guide rail (9) is connected to an elliptical grabbing frame (14) through a steering component to facilitate grabbing and placing the copper coil. The inner side wall of the elliptical grabbing frame (14) is provided with a plurality of grabbing grooves, and the inner side wall of the grabbing groove is connected to a mechanical gripper (16) through a control seat (15); The inner wall of the elliptical grabbing frame (14) away from the electric control guide rail (9) is provided with a cavity, and the outer side of the cavity is provided with a wire separator assembly for separating the two welding copper wires of the copper coil, and two opposite wire suction buckets (26) are provided below the wire separator assembly, and the narrow end of the wire suction bucket (26) is connected to a wire reeling tube (25), and the inner wall of the wire reeling tube (25) is provided with two opposite guide grooves, and the inner wall of the guide groove is connected to a wire holding assembly, and a twisting double-sided rack (28) is provided between the two wire reeling tubes (25), and twisting tooth rings (29) for increasing the twist of the welding copper wire are provided on both sides of the twisting double-sided rack (28).

2. The automatic welding equipment for electronic instrument manufacturing according to claim 1, characterized in that: The side limit assembly is composed of a right-angle pressure plate (6) and a curved pressure plate (8), the end of the right-angle pressure plate (6) is connected to the side wall of the curved pressure plate (8) through a universal telescopic joint (7), the top of the welding platform (1) is fixedly connected to the side wall of the right-angle pressure plate (6) through a hydraulic push rod (5), and two mutually symmetrical inclined slide grooves are provided on the top of the welding platform (1), and the bottom of the curved pressure plate (8) is slidably connected to the inner wall of the inclined slide groove through a sliding ball.

3. The automatic welding equipment for electronic instrument manufacturing according to claim 1, characterized in that: The steering assembly is composed of a steering gear (11) and a retaining rack (12); the top of the welding platform (1) is fixedly connected to the end of the electric control guide rail (9) via a fixing plate; the bottom of the welding platform (1) is fixedly connected to a plurality of supports; the inner side wall of the electric control guide rail (9) is slidably connected to a sliding seat (10); the bottom of the sliding seat (10) is rotatably connected to the top of the steering gear (11) via a rotating shaft.

4. The automatic welding equipment for electronic instrument manufacturing according to claim 3, characterized in that: The steering gear (11) is meshed with the retaining rack (12); the side wall of the retaining rack (12) is fixedly connected to the outer side wall of the electric control guide rail (9) via a fixing rod; the bottom end of the steering gear (11) is fixedly connected to the outer side wall of the elliptical grabbing frame (14) close to the electric control guide rail (9) via an adapter plate (13).

5. The automatic welding equipment for electronic instrument manufacturing according to claim 1, characterized in that: The inner wall of the grabbing groove of the elliptical grabbing frame (14) is connected to the mechanical gripper (16) via a control seat (15); a micro air pump is arranged in the cavity of the elliptical grabbing frame (14); an inverted U-shaped fixing plate is arranged on one side of the cavity of the elliptical grabbing frame (14); and the bottom end of the inverted U-shaped fixing plate is connected to an electric soldering iron (34) via an automated mechanical arm.

6. The automatic welding equipment for electronic instrument manufacturing according to claim 1, characterized in that: The wire separator assembly comprises a clamp-shaped frame (19) arranged inside an elliptical grabbing frame (14); the inner wall of the cavity of the elliptical grabbing frame (14) is fixedly connected to a barrier cover (17); the outward side wall of the barrier cover (17) is respectively connected to two electromagnetic beads (18) via two symmetrical right-angle guide rods; both ends of the clamp-shaped frame (19) are fixedly connected to permanent magnetic beads (20); and a torsion spring is arranged on a pin shaft for rotation in the clamp-shaped frame (19).

7. The automatic welding equipment for electronic instrument manufacturing according to claim 5, characterized in that: The elliptical grabbing frame (14) is fixedly connected to a hanging plate (21) on the outer wall of one side of the cavity, the hanging plate (21) is in communication with the micro air pump in the cavity, the bottom end of the hanging plate (21) is fixedly connected to a forked limit seat (23) via an adjustment mechanical arm (22), and the forked limit seat (23) is rotatably connected to the outer walls of two wire drawing tubes (25) via two sleeves (24).

8. The automatic welding equipment for electronic instrument manufacturing according to claim 1, characterized in that: The wire holding assembly is composed of two semi-trapezoidal columns (31) and two electromagnetic pressure plates (33); the outer wall of the semi-trapezoidal column (31) is slidably connected to the inner wall of the guide slide groove on the inner wall of the wire reeling tube (25) via a sliding guide rod (30); a threading half hole is provided at the axis of the semi-trapezoidal column (31); and the end of the semi-trapezoidal column (31) is slidably connected to the electromagnetic pressure plate (33) via two limit sliding columns (32).

9. The automatic welding equipment for electronic instrument manufacturing according to claim 7, characterized in that: The outer wall of the wire winding tube (25) is fixedly connected to the inner wall of the twisting tooth ring (29); the bottom end of the forked limit seat (23) is fixedly connected to an adjusting push rod (27) via a mounting plate; the output end of the adjusting push rod (27) is fixedly connected to the bottom end of the twisting double-sided rack (28); and the two sides of the twisting double-sided rack (28) are respectively meshed with two twisting tooth rings (29).

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