Automatic brazing machine for mounting plate and moving connecting plate of magnetic latching relay

Abstract

The invention relates to the technical field of welding equipment, and in particular to an automatic brazing machine for a magnetic latching relay mounting plate and a moving connecting plate, comprising a frame, a spot welding machine and an electric control box, wherein a left table plate and a right table plate are welded inside the frame, a spot welding machine is installed on the upper end of the left table plate, a mounting plate and a vibration plate support plate are respectively fixed to the upper end of the right table plate through columns, a turntable mechanism, a moving connecting plate feeding mechanism, an amorphous solder plate cutting mechanism and a blanking mechanism are installed on the mounting plate, a blanking track is also provided below the discharge port of the blanking mechanism, a feeding vibration plate is installed on the upper end of the vibration plate support plate, and a direct vibration feeder is also installed at the discharge port of the feeding vibration plate; the invention improves the production welding efficiency through structural optimization design, reduces the cumbersome procedures and difficulty of operators, achieves high efficiency, and is easy to operate; optical fiber can also be used for material shortage detection, and when there is material shortage, it will automatically identify and give a non-welding signal, so that the invention is more intelligent during use.

Description

Technical Field

[0001] The invention relates to the technical field of welding equipment, in particular to an automatic brazing machine for a mounting plate and a moving connecting plate of a magnetic latching relay. Background Art

[0002] In recent years, with the rapid development of the electronic information industry, relays as basic components have been widely used in the fields of automation control such as home appliances, communications, automobiles, instruments and meters, machinery and equipment, and aerospace. Recent statistics show that among electronic component products, relays have become the largest product in terms of annual sales. Magnetic latching relays are a new type of relay developed in recent years and are also an automatic switch. Like other electromagnetic relays, they automatically connect and disconnect the circuit. The difference is that the normally closed or normally open state of the magnetic latching relay is completely dependent on the role of permanent magnets, and the conversion of its switch state is completed by triggering a pulse electrical signal of a certain width; magnetic latching relays are widely used in remote control, telemetry, communication, automatic control, mechatronics and power electronic equipment, and are one of the most important control components.

[0003] In the production and processing of magnetic latching relays, it is usually necessary to weld the mounting plate and the moving connecting plate in the magnetic latching relay. However, the moving connecting plate and the mounting plate are currently manually loaded, which is very inefficient, about once every 3 to 5 seconds, and the efficiency is low; the brazing plates are also cut manually, cut into pieces and placed in a container, and then manually clamped with tweezers when used. The welding plates are very thin and difficult to clamp, and the efficiency is very low; in addition, the welding plates are very thin, usually with a thickness of 0.05mm, and there are burrs after cutting and punching, which is not easy to remove and position, and the material is very light and easy to shift, and the material is carried after punching, and the efficiency of manual welding is also very low. Summary of the invention

[0004] In view of the problems raised by the background technology, the present invention designs an automatic brazing machine for a mounting plate and a moving connecting plate of a magnetic latching relay.

[0005] The present invention is achieved through the following technical solutions:

[0006] A magnetic holding relay mounting plate and dynamic connecting plate automatic brazing machine, comprising a frame, a spot welding machine and an electric control box, wherein a caster is fixed at the bottom end of the frame, a left table plate and a right table plate are welded inside the frame, the spot welding machine is installed at the upper end of the left table plate, a mounting plate and a vibration plate support plate are respectively fixed at the upper end of the right table plate through columns, a turntable mechanism, a dynamic connecting plate feeding mechanism, an amorphous solder plate cutting mechanism and a blanking mechanism are installed on the mounting plate, the dynamic connecting plate feeding mechanism is located at the right front end of the turntable mechanism, the amorphous solder plate cutting mechanism is located at the right rear end of the turntable mechanism, the blanking mechanism is located directly behind the turntable mechanism, a blanking track is also provided below the discharge port of the blanking mechanism, and a blanking groove is provided on the upper end surface of the blanking track; a feeding vibration plate is installed at the upper end of the vibration plate support plate, and a direct vibration feeder is also installed at the discharge port of the feeding vibration plate;

[0007] Wherein, the turntable mechanism includes an intermittent divider, a dividing plate, a stepper motor, a motor support frame and a clamp assembly, the top output shaft of the intermittent divider is fixedly mounted with the dividing plate, the upper end surface of the dividing plate is evenly fixedly mounted with the clamp assembly of six stations along the circumference, the left end of the input shaft running through the inside of the intermittent divider is fixed with a first synchronous pulley, the stepper motor is mounted on the lower end of the mounting plate through the motor support frame, the output end of the stepper motor is fixed with a second synchronous pulley, the second synchronous pulley is meshed with the outer wall of the first synchronous pulley and is installed with a groove on the inner circumference surface A closed ring tape with teeth at equal intervals, the dynamic connecting piece feeding mechanism includes a feeding rack, an electric cylinder, a feeding track and a feeding block, the feeding track and the electric cylinder are fixedly installed on the top of the feeding rack, the feeding block is slidably installed inside the feeding track, and the feeding block is fixed to the telescopic rod of the electric cylinder; the unloading mechanism includes a unloading bracket, a first three-column cylinder and an air claw, the first three-column cylinder is fixedly installed on the top of the unloading bracket, the telescopic end of the first three-column cylinder is fixed with a connecting piece, the air claw is fixedly installed on the connecting piece, and a pair of unloading claws are installed at the front end of the air claw.

[0008] As a further improvement of the above scheme, a clamp mold opening cylinder seat is also fixed at the center position of the upper end surface of the dividing plate, and a pair of second three-column cylinders are installed on the upper end surface of the clamp mold opening cylinder seat, and the telescopic ends of the pair of second three-column cylinders are fixed with a clamp mold opening push plate, and the outer walls of the clamp mold opening push plates are fixed with clamp mold opening push blocks.

[0009] As a further improvement of the above scheme, the clamp assembly includes a clamp base, a clamp claw, a spring seat and a guide column, the upper end of the clamp base is fixedly installed with a clamp cover through a positioning fixing block, a pair of the clamp claws are hinged to the front end of the clamp base through a hinge shaft, a pair of the guide columns are fixedly installed at the rear end of the clamp base, the outer walls of the pair of guide columns are jointly fixed with the spring seat through a sleeve, and the outer ends of the pair of guide columns are also fixed with limiting caps, and clamp springs are installed between the two limiting caps and the spring seats.

[0010] As a further improvement of the above scheme, a proximity switch rack is fixedly mounted on the mounting plate, and two proximity switches are mounted on the proximity switch rack. The two proximity switches are electrically connected to two start detection rings respectively, and the two start detection rings are fixed to the outer wall of the input shaft that passes through the inside of the intermittent divider.

[0011] As a further improvement of the above solution, the blanking track is fixedly mounted on the right table plate through a track bracket, and the bottom end of the blanking track passes through the upper surface of the right table plate and the right side wall of the frame in sequence.

[0012] As a further improvement of the above scheme, a pair of slide rails are fixed on the upper end surface of the left table plate, a mobile bracket is slidably installed on the pair of slide rails, the spot welding machine is fixedly installed on the upper end of the mobile bracket, a plurality of fixing holes are opened on the mobile bracket and the pair of slide rails, and the mobile bracket and the pair of slide rails are fixed with fixing bolts.

[0013] As a further improvement of the above solution, the movable connecting piece feeding mechanism also includes a fiber optic detection head, which is fixedly mounted on the inner wall of the feeding track, and the top of the fiber optic detection head is electrically connected to the signal processor.

[0014] As a further improvement of the above solution, a manual auxiliary loading support plate is fixedly installed inside the frame, and the manual auxiliary loading support plate is arranged on the left side of the amorphous solder sheet cutting mechanism.

[0015] As a further improvement of the above scheme, a material shortage detection station is further provided between the manual assisted loading pallet and the spot welding machine, and the material shortage detection station includes a material shortage detection frame and a material shortage detection head, and the material shortage detection head is fixedly mounted on the material shortage detection frame, and the material shortage detection frame is fixed to the upper end surface of the left table plate.

[0016] As a further improvement of the above solution, the electric control box is fixed to the left front corner inside the frame, a central controller is provided inside the electric control box, and a working status indicator light is provided on the front side wall of the electric control box.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] In the present invention, firstly, a feeding vibration plate is used to sort the moving connecting pieces, a direct vibration feeder is used to automatically feed the materials, an optical fiber detects the incoming materials, and the products are positioned for a second time. After positioning, an electric cylinder pushes the moving connecting pieces, and the moving connecting pieces are fed into a six-position clamp assembly on a dividing plate, thereby replacing manual feeding and improving work efficiency. Then, a disc-shaped strip amorphous solder piece is mounted on a solder piece cutting mechanism, and the cutting of the amorphous solder piece is completed by feeding, punching, stripping, floating, unloading, and positioning. After the cutting is completed, the solder piece is fed into the moving connecting piece by automatic suction feeding, and the moving The two convex points on the connecting piece are used to lift the pins to remove the material until the welding piece is removed and positioned on the moving connecting piece; after the welding piece is cut and fed, it is rotated to the manual feeding station, and the moving connecting piece and the welding piece are manually confirmed to be loaded, and then the installation piece is put on the six-station fixture assembly of the indexing plate, and a signal is given manually, and it is rotated to enter the material shortage detection station. If the optical fiber detects that there is no shortage of material, it will operate normally, and the parts will enter the welding station and be welded by the spot welding machine. After the welding is completed, a completion signal is given, and it is rotated to the unloading station for automatic unloading; the optical fiber detects the shortage of material, gives a non-welding signal, and directly unloads. In summary, the present invention improves the production welding efficiency through structural optimization design, and the welding efficiency is increased to 1200-1500 pieces / hour, which reduces the fatigue of people, reduces the cumbersome procedures and difficulty of operators, and achieves high efficiency and is easy to operate; it also solves the problems of welding piece shearing band material, displacement, burrs, and inaccurate positioning; at the same time, optical fiber can be used for material shortage detection, and it will automatically identify and give a non-welding signal when there is a shortage of material, making the present invention more intelligent during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure from a first viewing angle of the present invention;

[0021] Figure 2 is a schematic diagram of a second viewing angle stereoscopic structure of the present invention;

[0022] Figure 3 It is a schematic diagram of the three-dimensional structure from a third viewing angle of the present invention;

[0023] Figure 4 It is a schematic diagram of a first partial three-dimensional structure of the present invention;

[0024] Figure 5 It is a schematic diagram of a second partial three-dimensional structure of the present invention;

[0025] Figure 6 It is a schematic structural diagram of the turntable mechanism of the present invention from a first viewing angle;

[0026] Figure 7 It is a schematic structural diagram of the turntable mechanism of the present invention from a second viewing angle;

[0027] Figure 8 It is a schematic structural diagram of the turntable mechanism of the present invention from a third viewing angle;

[0028] Fig. 9 It is a three-dimensional structural schematic diagram of the clamp assembly in the present invention;

[0029] Fig.10 It is a three-dimensional structural schematic diagram of the dynamic connecting piece feeding mechanism of the present invention;

[0030] Fig.11 It is a three-dimensional structural schematic diagram of the feeding mechanism in the present invention;

[0031] Fig.12 It is a schematic diagram of the installation of the material discharge mechanism and the material discharge track in the present invention;

[0032] Fig.13 It is a schematic diagram of the installation of the spot welding machine and the left table in the present invention.

[0033] Among them, 1-frame, 2-spot welding machine, 3-electric control box, 4-castor, 5-turntable mechanism, 501-intermittent divider, 502-dividing plate, 503-stepping motor, 504-motor support frame, 505-clamp assembly, 5051-clamp base, 5052-clamp claw, 5053-spring seat, 5054-guide column, 5055-positioning fixed block, 5056-clamp cover, 5057-limiting cap, 5058-clamp spring, 506-first synchronous pulley, 507-second synchronous pulley, 508-closed ring tape, 509-clamp mold opening cylinder seat, 510-second three-column cylinder, 511-clamp mold opening push plate, 512-clamp mold opening push block, 6-moving connecting piece feeding mechanism, 601-feeding Rack, 602-electric cylinder, 603-stepping motor, 604-feeding block, 605-optical fiber detection head, 606-signal processor, 7-amorphous solder sheet cutting mechanism, 8-unloading mechanism, 801-unloading bracket, 802-first three-column cylinder, 803-air claw, 804-connecting piece, 805-unloading claw, 9-left table, 10-right table, 11-mounting plate, 12-vibration plate support plate, 13-unloading track, 14-feeding vibration plate, 15-straight vibration feeder, 16-proximity switch rack, 17-proximity switch, 18-start detection ring, 19-track bracket, 20-slide rail, 21-movable bracket, 22-fixed hole, 23-manually assisted feeding bracket, 24-lack of material detection rack, 25-lack of material detection head. DETAILED DESCRIPTION

[0034] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0035] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0036] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present invention and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0037] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those skilled in the art, the specific meanings of these terms in the present invention can be understood according to specific circumstances.

[0038] In addition, the terms "installed", "set", "provided with", "connected", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] The present invention is further described below in conjunction with the accompanying drawings.

[0040] An automatic brazing machine for mounting plates and moving connecting plates of a magnetic latching relay, such as Figures 1 to 5 As shown, it includes a frame 1, a spot welder 2 and an electric control box 3. The electric control box 3 is fixed at the left front corner inside the frame 1. A central controller is arranged inside the electric control box 3. The central controller is used to control all electrical devices. A working status indicator light is arranged on the front wall of the electric control box 3. A caster 4 is fixed to the bottom end of the frame 1. A left table 9 and a right table 10 are welded inside the frame 1. The spot welder 2 is installed on the upper end of the left table 9. A mounting plate 11 and a vibration plate support plate 12 are fixed to the upper end of the right table 10 through columns. A turntable mechanism 5, a moving connecting piece feeding mechanism 6, an amorphous solder piece cutting mechanism 7 and a blanking mechanism 8 are installed on the mounting plate 11. The moving connecting piece feeding mechanism 6 is located at the right front end of the turntable mechanism 5, the amorphous solder piece cutting mechanism 7 is located at the right rear end of the turntable mechanism 5, and the blanking mechanism 8 is located at the right rear end of the turntable mechanism 5. Directly behind the turntable mechanism 5, a blanking track 13 is also provided below the discharge port of the blanking mechanism 8, and a blanking trough is provided on the upper end surface of the blanking track 13; a feeding vibration plate 14 is installed on the upper end of the vibration plate support plate 12, and a direct vibration feeder 15 is also installed at the discharge port of the feeding vibration plate 14; the principle of the feeding vibration plate 14 is as follows: there is a pulse electromagnet under the hopper inside the feeding vibration plate 14, which can make the hopper vibrate up and down in the vertical direction, so that the hopper can perform torsional vibration around its vertical axis, and the parts in the hopper rise along the spiral track due to this vibration until they are sent to the next process; the direct vibration feeder 15 is a linear track and a direct vibration drive electromagnetic device is installed on its lower end surface, so that the linear track vibrates up and down, so that the parts flow from the top of the linear track to the bottom.

[0041] Among them, Figures 6 to 8As shown, the turntable mechanism 5 includes an intermittent divider 501, a dividing plate 502, a stepper motor 503, a motor support frame 504 and a fixture assembly 505. The top output shaft of the intermittent divider 501 is fixedly mounted with the dividing plate 502. The upper end surface of the dividing plate 502 is evenly fixedly mounted with six station fixture assemblies 505 along the circumference. The left end of the input shaft penetrating the inside of the intermittent divider 501 is fixed with a first synchronous pulley 506. The stepper motor 503 is mounted on the lower end of the mounting plate 11 through the motor support frame 504. The output end of the stepper motor 503 is fixed with a second synchronous pulley 507. The second synchronous pulley 507 is meshed with the outer wall of the first synchronous pulley 506 and is installed with a closed annular adhesive belt 507 having teeth with equal spacing on the inner circumferential surface. 8. Therefore, the stepper motor 503 can drive the dividing plate 502 to rotate intermittently after being energized; a clamp mold opening cylinder seat 509 is also fixed at the center position of the upper end surface of the dividing plate 502, and a pair of second three-column cylinders 510 are installed on the upper end surface of the clamp mold opening cylinder seat 509, and the telescopic ends of the pair of second three-column cylinders 510 are fixed with clamp mold opening push plates 511, and the outer walls of the clamp mold opening push plates 511 are fixed with clamp mold opening push blocks 512. The second three-column cylinders 510 can be telescopic when energized, and can further drive the clamp mold opening push block 512 to move left and right. The mold opening push block 512 can push the clamp assembly 505, so as to adjust the position of the clamp assembly 505 on the moving connecting piece feeding station and the finished product unloading station, so as to facilitate the adjustment of the moving connecting piece feeding and finished product unloading positions.

[0042] like Fig. 9 As shown, the clamp assembly 505 includes a clamp base 5051, a clamp claw 5052, a spring seat 5053 and a guide column 5054. The upper end of the clamp base 5051 is fixedly installed with a clamp cover 5056 through a positioning fixing block 5055. A pair of clamp claws 5052 are hinged to the front end of the clamp base 5051 through a hinge shaft. A pair of guide columns 5054 are fixedly installed at the rear end of the clamp base 5051. The outer walls of the pair of guide columns 5054 are fixed with the spring seat 5053 through a sleeve. The outer ends of the pair of guide columns 5054 are also fixed with limiting caps 5057. Clamp springs 5058 are installed between the two limiting caps 5057 and the spring seat 5053. The clamp claws 5052 are used to fix the moving connecting plate, the welding plate and the mounting plate.

[0043] like Fig.10As shown, the moving connecting piece feeding mechanism 6 includes a feeding rack 601, an electric cylinder 602, a feeding track 603 and a feeding block 604. The feeding track 603 and the electric cylinder 602 are fixedly installed on the top of the feeding rack 601. The feeding block 604 is slidably installed inside the feeding track 603. The feeding block 604 is fixed to the telescopic rod of the electric cylinder 602. The electric cylinder 602 can be retracted when powered on, and then the feeding block 604 can be driven to move left and right along the inner wall of the feeding track 603; the moving connecting piece feeding mechanism 6 also includes a fiber optic detection head 605, which is fixedly installed on the inner wall of the feeding track 603. The top of the fiber optic detection head 605 is electrically connected to the signal processor 606. When the fiber optic detection head 605 detects that a moving connecting piece has fallen into the feeding track 603, the electric cylinder 602 will be powered on and extended until the moving connecting piece is fed into the fixture assembly 505.

[0044] like Fig.11 As shown, the unloading mechanism 8 includes an unloading bracket 801, a first three-column cylinder 802 and an air claw 803. The first three-column cylinder 802 is fixedly installed on the top of the unloading bracket 801. A connecting piece 804 is fixedly installed at the telescopic end of the first three-column cylinder 802. The air claw 803 is fixedly installed on the connecting piece 804. A pair of unloading claws 805 are installed at the front end of the air claw 803. When the air claw 803 is energized, it can drive the unloading claw 805 to open and close, and then cooperate with the extension and shortening of the first three-column cylinder 802 to clamp the welded finished product into the unloading track 13.

[0045] like Figure 8 As shown, a proximity switch frame 16 is also fixedly mounted on the mounting plate 11, and two proximity switches 17 are mounted on the proximity switch frame 16. The two proximity switches 17 are electrically connected to two start detection rings 18 respectively. The two start detection rings 18 are fixed to the outer wall of the input shaft that passes through the inside of the intermittent divider 501. The start detection ring 18 can be used to control whether the stepper motor 503 is working or not, and the intermittent divider 501 can control the stepper motor 503 to drive the dividing plate 502 to rotate 60° each time.

[0046] like Figure 2 and Figure 5 As shown, a manual-assisted loading pallet 23 is also fixedly installed inside the frame 1, and the manual-assisted loading pallet 23 is arranged on the left side of the amorphous solder sheet cutting mechanism 7. Many mounting plates can be placed above the manual-assisted loading pallet 23, so as to facilitate the operator to take the mounting plates; a lack of material detection station is also provided between the manual-assisted loading pallet 23 and the spot welding machine 2, and the lack of material detection station includes a lack of material detection frame 24 and a lack of material detection head 25, and the lack of material detection head 25 is fixedly installed on the lack of material detection frame 24, and the lack of material detection frame 24 is fixed on the upper end surface of the left table plate 9; a manual-assisted loading pallet 23 is also fixedly installed inside the frame 1, and the manual-assisted loading pallet 23 is arranged on the left side of the amorphous solder sheet cutting mechanism 7.

[0047] like Fig.12 As shown, the blanking track 13 is fixedly mounted on the right table 10 through a track bracket 19 , and the bottom end of the blanking track 13 passes through the upper surface of the right table 10 and the right side wall of the frame 1 in sequence.

[0048] like Fig.13 As shown, a pair of slide rails 20 are fixed to the upper end surface of the left table 9, and a mobile bracket 21 is slidably installed on the pair of slide rails 20. A spot welder 2 is fixedly installed on the upper end of the mobile bracket 21. A plurality of fixing holes 22 are provided on the mobile bracket 21 and the pair of slide rails 20. The mobile bracket 21 and the pair of slide rails 20 are fixed with fixing bolts. The mobile bracket 21 can move back and forth on the pair of slide rails 20, and the mobile bracket 21 can be fixed with the fixing bolts, so that the installation position of the spot welder 2 can be adjusted, and the installation and use are more flexible.

[0049] The workflow of the present invention is:

[0050] (1) First, the movable connecting pieces are manually placed in a disorderly manner into the feeding vibration plate 14. The movable connecting pieces are sorted and arranged by the feeding vibration plate 14, and then sent to the direct vibration feeder 15 after arrangement. Then, the direct vibration feeder 15 works to send the movable connecting pieces into the movable connecting piece feeding mechanism 6. After the optical fiber detection head 605 detects that a movable connecting piece has fallen into the feeding track 603, the electric cylinder 602 will be energized and extended until the movable connecting piece is sent into the fixture assembly 505.

[0051] (2) After the moving connecting piece enters the interior of the fixture assembly 505, the stepper motor 50 drives the indexing plate 502 to rotate counterclockwise by one station, that is, 60° counterclockwise. At this time, the fixture assembly 505 enters the soldering sheet loading station;

[0052] (3) Manually install the disc-shaped strip amorphous solder sheet on the solder sheet cutting mechanism, and complete the cutting by feeding, punching, stripping, floating, unloading, and positioning. After the cutting is completed, the solder sheet is placed at the specified position, and the solder sheet feeding mechanism sucks the cut solder sheet. The suction cup head has a floating positioning pin and a suction hole. The floating pin is inserted into two small holes pre-punched on the solder sheet for positioning. The solder sheet is sucked by vacuum, rotated 180 degrees, and sent to the moving connecting piece. The two protrusions on the moving connecting piece push the floating pin to strip the material, and then the vacuum is broken for blowing to ensure that the solder sheet is stripped and positioned on the moving connecting piece. After the solder sheet cutting and feeding is completed, the stepper motor 50 drives the indexing plate 502 to rotate counterclockwise by one station again, that is, enters the manual loading station;

[0053] (4) After manual confirmation that the moving connecting piece and the welding piece are loaded, the mounting piece is placed on the six-station fixture assembly of the indexing plate, and a signal is given manually, and the assembly is rotated to enter the material shortage detection station. If the optical fiber detects that there is no material shortage, the assembly operates normally. The parts enter the welding station and are welded by the spot welding machine. After welding is completed, a completion signal is given, and the assembly is rotated to the unloading station for automatic unloading. If the optical fiber detects that there is no material shortage, a signal of not welding is given, and the unloading is performed directly.

[0054] In summary, the present invention improves the production welding efficiency through structural optimization design, and the welding efficiency is increased to 1200-1500 pieces / hour, which reduces the fatigue of people, reduces the cumbersome procedures and difficulty of operators, and achieves high efficiency and easy operation; it also solves the problems of welding piece shearing band material, displacement, burrs, and inaccurate positioning; at the same time, optical fiber can be used for material shortage detection. When there is a shortage of material, it will automatically identify and give a non-welding signal, making the present invention more intelligent during use.

[0055] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An automatic brazing machine for mounting plates and moving connecting plates of a magnetic latching relay, comprising a frame (1), a spot welding machine (2) and an electric control box (3), characterized in that: A caster (4) is fixed to the bottom end of the frame (1); a left tabletop (9) and a right tabletop (10) are welded inside the frame (1); the spot welding machine (2) is mounted on the upper end of the left tabletop (9); a mounting plate (11) and a vibration plate support plate (12) are respectively fixed to the upper end of the right tabletop (10) through columns; a turntable mechanism (5), a moving connecting piece feeding mechanism (6), an amorphous solder sheet cutting mechanism (7) and a feeding mechanism (8) are mounted on the mounting plate (11); the moving connecting piece feeding mechanism (6) ) is located at the right front end of the turntable mechanism (5), the amorphous solder sheet cutting mechanism (7) is located at the right rear end of the turntable mechanism (5), the unloading mechanism (8) is located directly behind the turntable mechanism (5), a unloading track (13) is also provided below the discharge port of the unloading mechanism (8), and a unloading groove is provided on the upper end surface of the unloading track (13); a feeding vibration plate (14) is installed at the upper end of the vibration plate support plate (12), and a direct vibration feeder (15) is also installed at the discharge port of the feeding vibration plate (14); The turntable mechanism (5) comprises an intermittent divider (501), a dividing plate (502), a stepper motor (503), a motor support frame (504) and a fixture assembly (505); the dividing plate (502) is fixedly mounted on the top output shaft of the intermittent divider (501); the dividing plate (502) is evenly and fixedly mounted on the upper end surface of the dividing plate (502) with six workstations of the fixture assembly (505) along the circumference; a first synchronous pulley (506) is fixedly mounted on the left end of an input shaft penetrating the inside of the intermittent divider (501); the stepper motor (503) is mounted on the lower end of the mounting plate (11) via the motor support frame (504); a second synchronous pulley (507) is fixedly mounted on the output end of the stepper motor (503); the second synchronous pulley (507) and the outer wall of the first synchronous pulley (506) are meshed with each other and a closed annular rubber belt (507) having teeth with equal spacing on the inner circumferential surface is installed thereon. 08), the movable connecting piece feeding mechanism (6) comprises a feeding rack (601), an electric cylinder (602), a feeding track (603) and a feeding block (604), wherein the feeding track (603) and the electric cylinder (602) are fixedly mounted on the top of the feeding rack (601), the feeding block (604) is slidably mounted inside the feeding track (603), and the feeding block (604) is fixed to the telescopic rod of the electric cylinder (602); The material unloading mechanism (8) comprises a material unloading bracket (801), a first three-column cylinder (802) and an air claw (803); the first three-column cylinder (802) is fixedly mounted on the top of the material unloading bracket (801); a connecting piece (804) is fixedly mounted on the telescopic end of the first three-column cylinder (802); the air claw (803) is fixedly mounted on the connecting piece (804); and a pair of material unloading claws (805) are mounted on the front end of the air claw (803); A clamp mold opening cylinder seat (509) is also fixed at the center position of the upper end surface of the indexing plate (502), a pair of second three-column cylinders (510) are installed on the upper end surface of the clamp mold opening cylinder seat (509), a clamp mold opening push plate (511) is fixed to the telescopic end of the pair of second three-column cylinders (510), and a clamp mold opening push block (512) is fixed to the outer wall of the clamp mold opening push plate (511); The blanking track (13) is fixedly mounted on the right table (10) via a track bracket (19), and the bottom end of the blanking track (13) passes through the upper surface of the right table (10) and the right side wall of the frame (1) in sequence.

2. The automatic brazing machine for the mounting plate and the moving connecting plate of a magnetic latching relay according to claim 1, characterized in that: The clamp assembly (505) comprises a clamp base (5051), a clamp claw (5052), a spring seat (5053) and a guide column (5054); the upper end of the clamp base (5051) is fixedly mounted with a clamp cover (5056) via a positioning fixing block (5055); a pair of the clamp claws (5052) are hinged to the front end of the clamp base (5051) via a hinge shaft; a pair of the guide columns (5054) are fixedly mounted on the rear end of the clamp base (5051); the outer walls of the pair of the guide columns (5054) are fixedly mounted with the spring seat (5053) via a jacket; the outer ends of the pair of the guide columns (5054) are also fixed with a limiting cap (5057); and a clamp spring (5058) is installed between the two limiting caps (5057) and the spring seat (5053).

3. The automatic brazing machine for the mounting plate and the moving connecting plate of a magnetic latching relay according to claim 1, characterized in that: A proximity switch frame (16) is also fixedly mounted on the mounting plate (11), and two proximity switches (17) are mounted on the proximity switch frame (16). The two proximity switches (17) are electrically connected to two start detection rings (18) respectively, and the two start detection rings (18) are fixed to the outer wall of the input shaft that passes through the interior of the intermittent divider (501).

4. The automatic brazing machine for the mounting plate and the moving connecting plate of a magnetic latching relay according to claim 1, characterized in that: A pair of slide rails (20) are fixed to the upper end surface of the left table plate (9), a movable bracket (21) is slidably mounted on the pair of slide rails (20), the spot welding machine (2) is fixedly mounted on the upper end of the movable bracket (21), a plurality of fixing holes (22) are provided on the movable bracket (21) and the pair of slide rails (20), and the movable bracket (21) and the pair of slide rails (20) are fixed by fixing bolts.

5. The automatic brazing machine for the mounting plate and the moving connecting plate of a magnetic latching relay according to claim 1, characterized in that: The movable connecting piece feeding mechanism (6) further comprises an optical fiber detection head (605), wherein the optical fiber detection head (605) is fixedly mounted on the inner wall of the feeding track (603), and the top of the optical fiber detection head (605) is electrically connected to a signal processor (606).

6. The automatic brazing machine for the mounting plate and the moving connecting plate of a magnetic latching relay according to claim 1, characterized in that: A manual auxiliary loading support plate (23) is also fixedly mounted inside the frame (1), and the manual auxiliary loading support plate (23) is arranged on the left side of the amorphous solder sheet cutting mechanism (7).

7. The automatic brazing machine for the mounting plate and the moving connecting plate of a magnetic latching relay according to claim 6, characterized in that: A material shortage detection station is also provided between the manual auxiliary loading support plate (23) and the spot welding machine (2), the material shortage detection station comprising a material shortage detection frame (24) and a material shortage detection head (25), the material shortage detection head (25) being fixedly mounted on the material shortage detection frame (24), and the material shortage detection frame (24) being fixed to the upper end surface of the left table plate (9).

8. The automatic brazing machine for the mounting plate and the moving connecting plate of a magnetic latching relay according to claim 1, characterized in that: The electric control box (3) is fixed to the left front corner inside the frame (1), a central controller is provided inside the electric control box (3), and a working status indicator light is provided on the front side wall of the electric control box (3).

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