CN114867228B - Automatic welding device for diodes - Google Patents

Abstract

The invention discloses an automatic welding device for a diode, which belongs to the technical field of welding equipment and comprises a bending mechanism, a clamping jaw, a positioning mechanism, a workbench, an elevating mechanism, a moving mechanism, a welding head and a welding interface, wherein the bending mechanism is arranged at the upper side of the workbench and is connected with the elevating mechanism, the diode pin is bent by the bending mechanism, the diode tube shell is conveyed by the lifting mechanism, the side surface of the workbench is provided with a plurality of clamping jaws, the clamping jaws are provided with positioning mechanisms, the positioning mechanisms are provided with circuit boards, the circuit boards are provided with welding interfaces, the diode pin is positioned by the positioning mechanisms, therefore, the LED welding connector smoothly enters the welding interface, the moving mechanism is installed on the workbench, the diode pins are bent through the moving mechanism, the welding head is installed on the moving mechanism, and the welding process is completed through the welding head.

Description

Automatic welding device for diodes

Technical Field

The invention relates to the technical field of welding equipment, in particular to an automatic welding device for a diode.

Background

A diode is an electronic device made of semiconductor material (silicon, selenium, germanium, etc.). It has one-way conducting performance, that is, when positive voltage is applied to the anode of the diode, the diode is conducted. When a reverse voltage is applied to the anode and the cathode, the diode is turned off. Therefore, the on/off of the diode corresponds to the on/off of the switch, and the diode is one of the most recently produced semiconductor devices and is widely used. In particular, in various electronic circuits, diodes and components such as resistors, capacitors and inductors are reasonably connected to form circuits with different functions, so that various functions such as alternating current rectification, modulation signal detection, amplitude limiting and clamping, and power supply voltage stabilization can be realized. The diode traces can be found in common radio circuits, in other household appliances or in industrial control circuits.

Chinese patent application publication No. CN109951967A discloses a position accuracy auxiliary device for diode pin welding, and the technical scheme of the invention is as follows: the method comprises the following steps: a circuit board and a limiting ring; a pin jack is formed in the circuit board, and a pin of the diode is arranged in the pin jack; the inner wall of one end of the pin jack filled with the solder is provided with a first taper edge which inclines from inside to outside in the direction far away from the center of the hole; the limiting part is sleeved on the pin and clamped at one end of the pin jack, which is far away from the first taper edge, but the pin of the diode still needs to be manually bent when the diode is welded, and the tip of the pin of the diode is sharp, so that the hand of a welding worker can be injured by operation mistakes, and the automatic welding device for the diode is invented aiming at the defect.

Disclosure of Invention

Aiming at the technical problems, the technical scheme of the invention is as follows: an automatic diode welding device comprises a workbench, a welding head, a bending mechanism, an elevating mechanism and a moving mechanism, wherein the bending mechanism is provided with a lifting plate and a repelling assembly; the lifting mechanism is provided with a lifting frame and a grabbing component; the moving mechanism is provided with a lifting block, a folding rod and a connecting rod assembly, the lifting frame is slidably mounted on the inner side of the side plate, a sliding hole is formed in the side face of the lifting frame, and the lifting plate is slidably mounted on the inner side of the sliding hole; the subassembly that repulses is installed in lifting plate side, and the subassembly that repulses sets up two magnetism suction blocks that the magnetic pole is relative, and magnetism suction block installs on spacing subassembly, and after magnetism suction block breaks away from spacing subassembly, two magnetism suction block separation under the effect of magnetic force, the subassembly that repulses mutually with the splint of bending are connected, press from both sides tightly the diode pin through the splint of bending, bend the diode pin through the splint of bending when the lifting plate rises.

The diode tube shell lifting device comprises a lifting frame, a lifting plate, a diode tube shell and a lifting frame, wherein the lifting frame is provided with a lifting assembly, the diode tube shell is lifted by the lifting assembly, the side surface of the lifting assembly is provided with an upper inclined plane block, the lower side of the lifting assembly is provided with a lower inclined plane block, the lifting plate pushes the lower inclined plane block when lifted, and when the lower inclined plane block is contacted with the upper inclined plane block, the lower inclined plane block drives the lifting assembly to release the diode tube shell; the lifting piece is installed to lifting frame top, lifting piece slidable mounting is on the track frame, and leave the interval between the two, the lifting frame rises and promotes the lifting piece upward movement, the lifting piece all is connected with link assembly with a folding rod, the rising motion with the lifting piece through link assembly drives a folding rod horizontal motion, and then bend the diode pin off with the fingers and thumb, link assembly still is connected with the soldered connection, link assembly drives the soldered connection downstream with the rising motion of lifting piece, weld the diode pin on the circuit board, be provided with welding interface on the circuit board.

Further, the bending mechanism is further provided with a movable plate, an electric cylinder is fixedly mounted on the upper side of the movable plate, the extending end of the electric cylinder is fixedly mounted on the lower side of the lifting plate, the lower surface of the lifting plate is attached to the lower surface of the sliding hole in an initial state, when the lifting plate moves to the upper surface to be in contact with the upper surface of the sliding hole, the upper surface of the lifting plate is in contact with the lower surface of the lower inclined surface block, and the lower surface of the lower inclined surface block is parallel to the upper surface of the lifting plate.

Further, spacing subassembly be provided with sliding shaft and second connecting rod, sliding shaft fixed mounting at the movable plate upside, the sliding shaft is provided with two, every sliding shaft surface equal slidable mounting has a second connecting rod, every second connecting rod one end is inhaled the piece with a magnetism and is rotated and be connected, the second connecting rod other end is rotated and is installed on the fixed block, fixed block fixed mounting is in lifting board side, spacing subassembly and the subassembly that repels each other all are provided with two sets ofly.

Furthermore, the upper surface of the sliding shaft is level with the upper surface of the sliding hole; the side surface of the magnetic suction block is fixedly installed with one end of the first connecting rod, and the other end of the first connecting rod is fixedly installed with the bending clamping plate; the lifting frame is provided with an arc-shaped hole and a section of straight hole, when the second connecting rod slides on the outer surface of the sliding shaft, the first connecting rod is slidably mounted in the straight hole of the lifting frame, when the diode pin penetrates into the welding interface on the circuit board, the second connecting rod is separated from the outer surface of the sliding shaft, and when the second connecting rod is separated from the outer surface of the sliding shaft, the first connecting rod slides in the arc-shaped hole.

Furthermore, the grabbing assembly is provided with two third connecting rods, the two third connecting rods and the split clamping plates are both provided with straight holes, the two third connecting rods are installed in a crossed mode to form an X shape, sliding shafts are installed on the inner sides of the crossed parts of the straight holes on the two third connecting rods in a sliding mode, the side faces of the two third connecting rods are respectively and fixedly provided with a lower inclined plane block, one end of one third connecting rod is rotatably connected with the first sliding block, and the other end of the third connecting rod is rotatably connected with one split clamping plate; one end of the other third connecting rod is rotatably connected with the second sliding block, the other end of the other third connecting rod is rotatably connected with the other split clamping plate, the second sliding block is slidably mounted on the inner side of the first sliding block, the first sliding block and the second sliding block are slidably mounted on the inner side of the sliding groove, a fixing shaft is fixedly mounted on the lower side of the sliding groove, the fixing shaft is fixedly mounted on the upper side of the moving plate, and the lifting plate is slidably mounted on the outer surface of the fixing shaft.

Furthermore, the side face of the side plate is fixedly provided with two cantilever rods, one end of each cantilever rod, which is close to the diode tube shell, is fixedly provided with an upper slope block, the side face of each upper slope block is coincided with the side face of each lower slope block, the upper surface of each lower slope block is an inclined plane, the lower surface of each upper slope block is an inclined plane, the slopes of the upper slope block and the lower slope block are equal, after the upper slope block and the lower slope block are contacted, the lower slope block drives the inferior angle number clamped by the two third connecting rods to gradually increase along with the continuous rising of the lower slope block.

Further, components of a whole that can function independently splint be provided with two, every components of a whole that can function independently splint side all rotates and installs a C-shaped piece, and C-shaped piece slidable mounting snatchs the diode tube through components of a whole that can function independently splint to the lifting frame upside, increases gradually along with the inferior angle number that two third connecting rods pressed from both sides, the third connecting rod loosens the diode tube gradually.

Further, movable plate upside slidable mounting have the track frame, the inboard slidable mounting of track frame has the lifting piece, the lifting piece is located lifting frame top, the lifting piece is located the circuit board below, lifting frame and lifting piece overlap each other in the projection of lifting frame upside, the distance between lifting piece lower surface and the lifting frame upper surface is less than down the distance between inclined plane piece and the last inclined plane piece.

Furthermore, two cylindrical protrusions are arranged on the side face of the lifting block, two horizontal grooves and two vertical grooves are arranged on the track frame, the central lines of the two horizontal grooves are collinear, the widths and the lengths of the two horizontal grooves are equal, and the central lines of the two vertical grooves are parallel, and the widths and the lengths of the two vertical grooves are equal.

Further, link assembly be provided with fourth connecting rod and fifth connecting rod, link assembly is provided with two sets ofly, fourth connecting rod one end rotate and install the cylindrical surface at the lifting piece, the fourth connecting rod other end rotates and installs in fifth connecting rod one end, fifth connecting rod one end slidable mounting is in one section horizontal slot of track frame, fifth connecting rod other end slidable mounting is in one section vertical slot of track frame, fifth connecting rod side fixed mounting has the folding rod, the rising through the lifting piece drives the fifth connecting rod and slides along the horizontal slot, and then drives the folding rod and break the diode pin that passes the welding interface off with the fingers and thumb.

Compared with the prior art, the invention has the beneficial effects that: (1) the pins of the diode are automatically bent, so that the problem that the tips of the pins scratch the hands of welding personnel during manual bending is avoided; (2) the access ports of the diodes on the circuit board are automatically aligned, so that the damage to the circuit board caused by the askew insertion of the diodes is avoided; (3) the pins of the diode are automatically bent after the diode is inserted, so that the diode is prevented from falling to influence the welding process of the diode; (4) the upper welding saves the overturning process, and avoids the damage to the circuit board caused by the falling of the circuit board due to misoperation in the overturning process.

Drawings

Fig. 1 is a schematic view of the general structure of the present invention.

FIG. 2 is a schematic view of the connection relationship between the clamping jaw and the circuit board.

FIG. 3 is a schematic view of the connection between the elastic clamp and the split funnel.

Fig. 4 is a partially enlarged view of a portion a in fig. 3.

Fig. 5 is a schematic view of the connection between the bending mechanism and the lifting mechanism according to the present invention.

Fig. 6 is a partially enlarged view of the portion B in fig. 5.

Fig. 7 is a schematic view of the general structure of the bending mechanism of the present invention.

Fig. 8 is a schematic view of the overall structure of the grasping unit according to the present invention.

FIG. 9 is a schematic view of the connection between the upper bevel block and the suspension arm according to the present invention.

Fig. 10 is a partially enlarged view of C in fig. 9.

FIG. 11 is a schematic diagram showing the positional relationship between the lower and upper ramp blocks according to the present invention.

Fig. 12 is a schematic view of the position relationship between the fixed shaft and the sliding groove according to the present invention.

Fig. 13 is a schematic view of the overall structure of the moving mechanism of the present invention.

FIG. 14 is a schematic view of the general construction of the connecting rod assembly of the present invention.

Fig. 15 is a partially enlarged view of fig. 14 at D.

Reference numerals: 1-a bending mechanism; 2-a clamping jaw; 3-a positioning mechanism; 4-a workbench; 5-an elevator mechanism; 6-a moving mechanism; 7-welding a head; 8-welding an interface; 101-moving the plate; 102-self-locking casters; 103-side plate; 104-an electric cylinder; 105-diode package; 106-diode pin; 107-bending the clamping plate; 108-a first link; 109-lifting the plate; 110-fixed block; 111-sliding shaft; 112-a second link; 113-a magnetic block; 301-a circuit board; 302-a spring clip; 303-split funnel; 501-lifting frame; 502-sliding hole; 503-split splint; 504-arc shaped holes; 505-a stationary shaft; 506-lower slope piece; 507-upper bevel blocks; 508-a third link; 509-sliding shaft; 510-a C-block; 511-a first slider; 512-second slider; 513-sliding grooves; 514-cantilever bar; 601-a track frame; 602-a separator; 603-lifting block; 604-a fourth link; 605-a fifth link; 606-folding the rod; 607-L-shaped rod; 608-mounting block.

Detailed Description

The technical solution of the present invention is further described below by way of specific embodiments.

Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

As shown in fig. 1 and 5, the bending mechanism 1 is installed on the upper side of the workbench 4, the bending mechanism 1 is connected with the lifting mechanism 5, the diode pins 106 are bent by the bending mechanism 1, the diode tube shell 105 is conveyed by the lifting mechanism 5, four clamping jaws 2 are installed on the side surface of the workbench 4, the positioning mechanism 3 is installed on the clamping jaws 2, the positioning mechanism 3 is provided with a circuit board 301, a welding interface 8 is arranged on the circuit board 301, the diode pins 106 are positioned by the positioning mechanism 3 and smoothly enter the welding interface 8, the moving mechanism 6 is installed on the workbench 4, the diode pins 106 are bent by the moving mechanism 6, the welding head 7 is installed on the moving mechanism 6, and the welding process is completed by the welding head 7.

As shown in fig. 1, fig. 2, fig. 7, fig. 13 and fig. 14, the lifting frame 501 is slidably mounted inside the side plate 103, a sliding hole 502 is formed in the side surface of the lifting frame 501, and the lifting plate 109 is slidably mounted inside the sliding hole 502; the repelling component is arranged on the side surface of the lifting plate 109, the repelling component is provided with two magnetic attraction blocks 113 with opposite magnetic poles, the magnetic attraction blocks 113 are arranged on the limiting component, after the magnetic attraction blocks 113 are separated from the limiting component, the two magnetic attraction blocks 113 are separated under the action of magnetic force, the repelling component is connected with the bending clamp plate 107, the diode pin 106 is clamped through the bending clamp plate 107, the diode pin 106 is bent through the bending clamp plate 107 when the lifting plate 109 rises, the grabbing component is arranged on the upper side of the lifting frame 501 and grabs the diode tube shell 105 through the grabbing component, the upper inclined plane block 507 is arranged on the side surface of the grabbing component, the lower inclined plane block 506 is arranged on the lower side of the grabbing component, the lower inclined plane block 506 pushes the lower inclined plane block 506 when the lifting plate 109 rises, and when the lower inclined plane block 506 is in contact with the upper inclined plane block 507, the lower inclined plane block 506 drives the grabbing component to loosen the diode tube shell 105; the lifting block 603 is installed above the lifting frame 501, the lifting block 603 is slidably installed on the track frame 601, the partition plate 602 is fixedly installed on the inner side of the track frame 601, a gap is reserved between the lifting block 603 and the track frame 601, the lifting frame 501 ascends to push the lifting block 603 to move upwards, the lifting block 603 and the folding rod 606 are both connected with the connecting rod assembly, the ascending movement of the lifting block 603 drives the folding rod 606 to move horizontally through the connecting rod assembly, the diode pins 106 are bent, the connecting rod assembly is further connected with the welding head 7, the ascending movement of the lifting block 603 is driven by the connecting rod assembly to move the welding head 7 downwards, the diode pins 106 are welded on the circuit board 301, and the welding interface 8 is arranged on the circuit board 301.

As shown in fig. 1, 2, 6 to 8, the self-locking caster 102 is mounted on the lower side of the moving plate 101, the self-locking caster 102 rolls on the workbench 4, the self-locking caster 102 has a self-locking function, the electric cylinder 104 is fixedly mounted on the upper side of the moving plate 101, the extended end of the electric cylinder 104 is fixedly mounted on the lower side of the lifting plate 109, the lower surface of the lifting plate 109 is attached to the lower surface of the sliding hole 502 in an initial state, when the lifting plate 109 moves to the state that the upper surface of the lifting plate is in contact with the upper surface of the sliding hole 502, the upper surface of the lifting plate 109 is in contact with the lower surface of the lower inclined block 506, the lower surface of the lower inclined block 506 is parallel to the upper surface of the lifting plate 109, the limiting assembly is provided with the sliding shaft 111 and the second connecting rod 112, the sliding shaft 111 is fixedly mounted on the upper side of the moving plate 101, two sliding shafts 111, one second connecting rod 112 is slidably mounted on the outer surface of each sliding shaft 111, one end of each second connecting rod 112 is rotatably connected with one magnetic suction block 113, the other end of each second connecting rod 112 is rotatably arranged on the fixed block 110, the fixed block 110 is fixedly arranged on the side surface of the lifting plate 109, two groups of limiting components and two groups of repelling components are arranged, and the upper surface of the sliding shaft 111 is level with the upper surface of the sliding hole 502; the side surface of the magnetic suction block 113 is fixedly installed with one end of the first connecting rod 108, and the other end of the first connecting rod 108 is fixedly installed with the bending splint 107; the lifting frame 501 is provided with an arc-shaped hole 504 and a section of straight hole, when the second link 112 slides on the outer surface of the sliding shaft 111, the first link 108 is slidably mounted in the straight hole of the lifting frame 501, when the diode pin 106 penetrates into the soldering interface 8 on the circuit board 301, the second link 112 is separated from the outer surface of the sliding shaft 111, when the second link 112 is separated from the outer surface of the sliding shaft 111, the first link 108 slides in the arc-shaped hole 504, and the lower surface of the lifting plate 109 is in contact with the lower surface of the sliding hole 502 in an initial state.

As shown in fig. 7 to 12, the grabbing assembly is provided with three connecting rods 508, two third connecting rods 508 are provided, two straight holes are provided on two third connecting rods 508, the two third connecting rods 508 are installed in a crossed manner to form an X shape, a sliding shaft 509 is slidably installed at the inner side of the intersection part of the straight holes on the two third connecting rods 508, a lower inclined plane block 506 is fixedly installed on the side surfaces of the two third connecting rods 508 respectively, one end of one third connecting rod 508 is rotatably connected with the first sliding block 511, and the other end of the third connecting rod 508 is rotatably connected with the split clamp plate 503; one end of another third link 508 is rotatably connected with a second sliding block 512, the other end is rotatably connected with a split clamp plate 503, the second sliding block 512 is slidably mounted inside a first sliding block 511, the first sliding block 511 and the second sliding block 512 are slidably mounted inside a sliding groove 513, a fixed shaft 505 is fixedly mounted on the lower side of the sliding groove 513, the fixed shaft 505 is fixedly mounted on the upper side of the moving plate 101, the lifting plate 109 is slidably mounted on the outer surface of the fixed shaft 505, a cantilever rod 514 is fixedly mounted on the side surface of the side plate 103, two cantilever rods 514 are provided, one end of each cantilever rod 514, which is close to the diode package 105, is fixedly mounted with an upper bevel block 507, the side surface of the upper bevel block 507 is overlapped with the side surface of the lower bevel block 506, the upper surface of the lower bevel block 506 is an inclined surface, the lower surface of the upper bevel block 507 is an inclined surface, the slopes of the upper bevel block 507 and the slopes of the lower bevel block 506 are equal, and the upper bevel block 507 and the lower bevel block 506 continuously rise with the lower bevel block 506 after being contacted, the inferior angle number between the two third links 508 driven by the lower slope block 506 increases gradually.

As shown in fig. 6 to 13, two split clamping plates 503 are provided, a C-shaped block 510 is rotatably mounted on the side of each split clamping plate 503, the C-shaped block 510 is slidably mounted on the upper side of the lifting frame 501, the diode tube shell 105 is grabbed through the split clamp plate 503, the diode tube shell 105 is gradually loosened by gradually increasing the number of inferior angles clamped by the two third connecting rods 508, the track frame 601 is slidably mounted on the upper side of the moving plate 101, the lifting block 603 is slidably mounted on the inner side of the track frame 601, the lifting block 603 is located above the lifting frame 501, the lifting block 603 is located below the circuit board 301, projections of the lifting frame 501 and the lifting block 603 on the upper side of the lifting frame 501 are mutually overlapped, two cylindrical protrusions are arranged on the side face of the lifting block 603, the track frame 601 is provided with two sections of horizontal grooves and two sections of vertical grooves, the central lines of the two sections of horizontal grooves are collinear, the widths and the lengths of the two sections of vertical grooves are equal, and the central lines of the two sections of vertical grooves are parallel, and the widths and the lengths of the two sections of vertical grooves are equal; the distance between the lower surface of the lift block 603 and the upper surface of the lift frame 501 is less than the distance between the lower ramp block 506 and the ramp surface of the upper ramp block 507.

As shown in fig. 12 to 15, the connecting rod assembly is provided with a fourth connecting rod 604 and a fifth connecting rod 605, one end of the fourth connecting rod 604 is rotatably installed on the cylindrical outer surface of the lifting block 603, the other end of the fourth connecting rod 604 is rotatably installed on one end of the fifth connecting rod 605, one end of the fifth connecting rod 605 is slidably installed in a horizontal groove of the rail frame 601, the other end of the fifth connecting rod 605 is slidably installed in a vertical groove of the rail frame 601, a folding rod 606 is fixedly installed on the side surface of the fifth connecting rod 605, the fifth connecting rod 605 is driven to slide along the horizontal groove by the ascending of the lifting block 603, the folding rod 606 is driven to bend the diode pin 106 passing through the welding interface 8, an L-shaped rod 607 is further fixedly installed on the side surface of the fifth connecting rod 605, an installation block 608 is fixedly installed on the outer surface of the L-shaped rod 607, and a welding head 7 is installed on the installation block 608.

As shown in fig. 2 and fig. 3, the positioning mechanism 3 is further provided with an elastic clamp 302, the elastic clamp 302 has elasticity, the elastic clamp 302 is provided with a plurality of arc-shaped notches, a split funnel 303 is installed in the arc-shaped notch of the elastic clamp 302, the split funnel 303 is formed by splicing two parts, the two parts of the split funnel 303 are respectively installed in the arc-shaped notch inside the elastic clamp 302, the elastic clamp 302 can be opened, the two parts of the split funnel 303 are separated when the elastic clamp 302 is opened, the lower part of the split funnel 303 is cylindrical when the two parts are closed, the inner wall of the split funnel 303 is conical when the upper part is closed, the radius of the conical inlet is larger than the radius of the welding interface 8, the radius of the outer wall of the lower part of the split funnel 303 is smaller than the radius of the welding interface 8, the radius of the inner wall of the lower part of the split funnel 303 is larger than the radius of the diode pin 106, and the split funnel 303 is installed in the welding interface 8 during operation.

The working principle of the automatic diode welding device disclosed by the invention is as follows.

(1) In operation, diode package 105 is placed between two split clamps 503 and diode pin 106 is placed between bent clamps 107, while spring clamp 302 is manually clamped to close split funnel 303 and place the lower portion of split funnel 303 in solder joint 8, as shown in fig. 4.

(2) The electric cylinder 104 is started, the electric cylinder 104 drives the lifting plate 109 to slide along the sliding hole 502, the lifting plate 109 drives the fixing block 110 to ascend in the ascending process, the fixing block 110 drives the second connecting rod 112 to slide along the outer surface of the sliding shaft 111 in the ascending process, the magnetic attraction block 113 is driven to ascend through the sliding shaft 111, the magnetic attraction block 113 drives the first connecting rod 108 to slide on the lifting frame 501, the bending clamp plate 107 is driven to ascend when the first connecting rod 108 ascends, the diode tube shell 105 is fixed when the bending clamp plate 107 ascends, therefore, the diode pin 106 is bent, when the second connecting rod 112 is separated from the constraint of the outer surface of the sliding shaft 111, the magnetic attraction block 113 is separated under the action of magnetic force due to the fact that the magnetic poles of the magnetic attraction block 113 are opposite, the first connecting rod 108 slides along the arc-shaped hole 504 through the second connecting rod 112, and the first connecting rod 108 drives the bending clamp plate 107 to loosen the diode pin 106.

(3) The electric cylinder 104 continues to drive the lifting plate 109 to ascend, at the moment, the lifting plate 109 drives the lifting frame 501 to slide and ascend along the side plate 103, the diode pins 106 continue to ascend, when the tips of the diode pins 106 contact the inner wall of the upper portion of the split funnel 303, the tips of the diode pins 106 gradually slide into the welding interface 8 along the conical outer surface of the upper portion of the split funnel 303, after the diode pins 106 penetrate out of the welding interface 8, the split funnel 303 is taken out of the welding interface 8, and then the split funnel 303 and the elastic clamp 302 are placed on one side.

(4) The electric cylinder 104 continues to drive the lifting plate 109 to rise, at this time, as the lifting frame 501 continues to rise, the part of the diode pin 106 penetrating through the welding interface 8 is longer and longer, when the lifting frame 501 contacts the lifting block 603, the lifting frame 501 drives the lifting block 603 to rise, the lifting block 603 drives the fourth connecting rod 604 to swing in the rising process, the fourth connecting rod 604 drives the folding rod 606 to move along the horizontal groove direction of the track frame 601 in the swinging process, and the part of the diode pin 106 penetrating through the welding interface 8 is bent through the folding rod 606.

(5) The electric cylinder 104 continues to drive the lifting plate 109 to rise, when the lifting plate 109 pushes the lower slope block 506 to contact with the upper slope block 507, the inferior angle clamped by the two third connecting rods 508 is driven by the lower slope block 506 to gradually increase, and meanwhile, the two split clamping plates 503 are driven by the third connecting rods 508 to slide on the upper surface of the lifting frame 501, so that the diode tube shell 105 is loosened, and the split clamping plates 503 are prevented from continuing to rise to touch other circuit elements on the circuit board.

(6) Meanwhile, the fifth connecting rod 605 is driven to swing through the fourth connecting rod 604, when the fifth connecting rod 605 swings, the folding rod 606 slides downwards along the vertical groove on the track frame 601, then the folding rod 606 drives the L-shaped rod 607 to move downwards, when the L-shaped rod 607 moves downwards, the welding head 7 is driven to move downwards, and then the soldering tin wires are held to align with the positions of the welding head 7 and the welding interface 8 to weld the diode pins 106.

The present invention is not limited to the above-described embodiments, and those skilled in the art will be able to make various modifications without creative efforts from the above-described conception and fall within the scope of the present invention.

Claims (10)

1. The utility model provides a diode automatic welder, includes workstation (4) and soldered connection (7), its characterized in that: the device is characterized by also comprising a bending mechanism (1), a lifting mechanism (5) and a moving mechanism (6), wherein the bending mechanism (1) is provided with a lifting plate (109) and a repelling component; the lifting mechanism (5) is provided with a lifting frame (501) and a grabbing component; the moving mechanism (6) is provided with a lifting block (603), a folding rod (606) and a connecting rod assembly, a lifting frame (501) is slidably mounted on the inner side of the side plate (103), a sliding hole (502) is formed in the side face of the lifting frame (501), and a lifting plate (109) is slidably mounted on the inner side of the sliding hole (502); the repulsion component is arranged on the side face of the lifting plate (109), the repulsion component is provided with two magnetic attraction blocks (113) with opposite magnetic poles, the magnetic attraction blocks (113) are arranged on the limiting component, after the magnetic attraction blocks (113) are separated from the limiting component, the two magnetic attraction blocks (113) are separated under the action of magnetic force, the repulsion component is connected with a bending clamping plate (107), the diode pin (106) is clamped through the bending clamping plate (107), and the diode pin (106) is bent through the bending clamping plate (107) when the lifting plate (109) rises;

the diode tube shell (105) is grabbed by the grabbing component, an upper inclined plane block (507) is installed on the side face of the grabbing component, a lower inclined plane block (506) is arranged on the lower side of the grabbing component, and when the lower inclined plane block (506) is in contact with the upper inclined plane block (507), the lower inclined plane block (506) drives the grabbing component to loosen the diode tube shell (105); lifting piece (603) are installed to lifting frame (501) top, lifting piece (603) slidable mounting is on track frame (601), and leave the interval between the two, lifting frame (501) rise and promote lifting piece (603) upward movement, lifting piece (603) all are connected with link assembly with folding rod (606), the rising motion with lifting piece (603) through link assembly drives folding rod (606) horizontal motion, and then break bending off diode pin (106) with the fingers and thumb, link assembly still is connected with soldered connection (7), link assembly drives soldered connection (7) downstream with the rising motion of lifting piece (603), be provided with welding interface (8) on circuit board (301).

2. An automatic welding device for diode according to claim 1, characterized in that: the bending mechanism (1) is further provided with a moving plate (101), an electric cylinder (104) is fixedly mounted on the upper side of the moving plate (101), the extending end of the electric cylinder (104) is fixedly mounted on the lower side of the lifting plate (109), the lower surface of the lifting plate (109) is attached to the lower surface of the sliding hole (502) in an initial state, when the lifting plate (109) moves to the state that the upper surface of the lifting plate is in contact with the upper surface of the sliding hole (502), the upper surface of the lifting plate (109) is in contact with the lower surface of the lower inclined surface block (506), and the lower surface of the lower inclined surface block (506) is parallel to the upper surface of the lifting plate (109).

3. An automatic welding device for diode according to claim 2, characterized in that: spacing subassembly be provided with slide shaft (111) and second connecting rod (112), slide shaft (111) fixed mounting in movable plate (101) upside, slide shaft (111) are provided with two, equal slidable mounting of every slide shaft (111) surface has a second connecting rod (112), every second connecting rod (112) one end is connected with a magnetism piece (113) rotation, second connecting rod (112) other end is rotated and is installed on fixed block (110), fixed block (110) fixed mounting is in lifting board (109) side, spacing subassembly and the subassembly that repels each other all are provided with two sets ofly.

4. An automatic welding device for diode according to claim 3, characterized in that: the upper surface of the sliding shaft (111) is level with the upper surface of the sliding hole (502); the side surface of the magnetic suction block (113) is fixedly installed with one end of a first connecting rod (108), and the other end of the first connecting rod (108) is fixedly installed with a bending splint (107); the lifting frame (501) is provided with an arc-shaped hole (504) and a section of straight hole, when the second connecting rod (112) slides on the outer surface of the sliding shaft (111), the first connecting rod (108) is slidably mounted in the straight hole of the lifting frame (501), when the diode pin (106) penetrates into the welding interface (8) on the circuit board (301), the second connecting rod (112) is separated from the outer surface of the sliding shaft (111), and when the second connecting rod (112) is separated from the outer surface of the sliding shaft (111), the first connecting rod (108) slides in the arc-shaped hole (504).

5. An automatic welding device for diode according to claim 1, characterized in that: the grabbing component is provided with third connecting rods (508), the number of the third connecting rods (508) and the number of split clamping plates (503) are two, straight holes are formed in the two third connecting rods (508), the two third connecting rods (508) are installed in a crossed mode to form an X shape, sliding shafts (509) are installed on the inner sides of the crossed portions of the straight holes in the two third connecting rods (508) in a sliding mode, lower inclined surface blocks (506) are fixedly installed on the side faces of the two third connecting rods (508) respectively, one end of one third connecting rod (508) is rotatably connected with a first sliding block (511), and the other end of the third connecting rod (508) is rotatably connected with one split clamping plate (503); one end of the other third connecting rod (508) is rotatably connected with the second sliding block (512), the other end of the other third connecting rod is rotatably connected with the other split clamping plate (503), the second sliding block (512) is slidably mounted on the inner side of the first sliding block (511), the first sliding block (511) and the second sliding block (512) are both slidably mounted on the inner side of the sliding groove (513), a fixed shaft (505) is fixedly mounted on the lower side of the sliding groove (513), the fixed shaft (505) is fixedly mounted on the upper side of the moving plate (101), and the lifting plate (109) is slidably mounted on the outer surface of the fixed shaft (505).

6. An automatic welding device for diode according to claim 5, characterized in that: the diode tube shell structure is characterized in that cantilever rods (514) are fixedly mounted on the side faces of the side plates (103), two cantilever rods (514) are arranged, an upper inclined face block (507) is fixedly mounted at one end, close to the diode tube shell (105), of each cantilever rod (514), the side face of each upper inclined face block (507) is overlapped with the side face of each lower inclined face block (506), the upper surface of each lower inclined face block (506) is an inclined face, the lower surface of each upper inclined face block (507) is an inclined face, the slopes of the inclined faces of the upper inclined face blocks (507) and the lower inclined face blocks (506) are equal, after the upper inclined face blocks (507) and the lower inclined face blocks (506) are contacted, the number of angles clamped by the two third connecting rods (508) is gradually increased by the lower inclined face blocks (506).

7. An automatic welding device for diode according to claim 5, characterized in that: the diode tube shell lifting device is characterized in that a C-shaped block (510) is rotatably mounted on the side face of each split clamping plate (503), the C-shaped blocks (510) are slidably mounted on the upper side of the lifting frame (501), the diode tube shell (105) is grabbed through the split clamping plates (503), and the diode tube shell (105) is gradually loosened by the third connecting rods (508) along with the gradual increase of the number of inferior angles clamped by the two third connecting rods (508).

8. An automatic welding device for diode according to claim 7, characterized in that: moving plate (101) upside slidable mounting have track frame (601), track frame (601) inboard slidable mounting has lifting piece (603), lifting piece (603) are located lifting frame (501) top, lifting piece (603) are located circuit board (301) below, lifting frame (501) and lifting piece (603) overlap each other in the projection of lifting frame (501) upside, the distance between lifting piece (603) lower surface and lifting frame (501) upper surface is less than the distance between lower bevel piece (506) and the last bevel piece (507).

9. An automatic welding device for diode according to claim 8, characterized in that: the side surface of the lifting block (603) is provided with two cylindrical protrusions, the track frame (601) is provided with two sections of horizontal grooves and two sections of vertical grooves, the central lines of the two sections of horizontal grooves are collinear, the widths and the lengths of the two sections of horizontal grooves are equal, and the central lines of the two sections of vertical grooves are parallel, and the widths and the lengths of the two sections of vertical grooves are equal.

10. An automatic welding device for diodes according to claim 9, characterized in that: the connecting rod assembly is provided with a fourth connecting rod (604) and a fifth connecting rod (605), the connecting rod assembly is provided with two groups, one end of the fourth connecting rod (604) is rotatably installed on the cylindrical outer surface of the lifting block (603), the other end of the fourth connecting rod (604) is rotatably installed at one end of the fifth connecting rod (605), one end of the fifth connecting rod (605) is slidably installed in one section of horizontal groove of the track frame (601), the other end of the fifth connecting rod (605) is slidably installed in one section of vertical groove of the track frame (601), a folding rod (606) is fixedly installed on the side surface of the fifth connecting rod (605), the fifth connecting rod (605) is driven to slide along the horizontal groove by the lifting of the lifting block (603), and then the folding rod (603) is driven to bend the diode pin (106) penetrating through the welding interface (8).

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