CN111276372A

CN111276372A - Electromagnetic relay and assembling method and equipment thereof

Info

Publication number: CN111276372A
Application number: CN202010091356.6A
Authority: CN
Inventors: 陈如会; 沈华; 张良华
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-02-13
Filing date: 2020-02-13
Publication date: 2020-06-12

Abstract

The invention relates to the technical field of relays. An automatic assembling device for an electromagnetic relay comprises a rack, and a yoke iron feeding device, a movable jig device, a coil feeding device, an iron core feeding device, a press riveting device and a blanking device which are arranged on the rack; the yoke iron feeding device is positioned at the feeding end of the movable jig device, the press riveting device is positioned at the discharging end of the movable jig device, and the blanking device is connected with the press riveting device; the iron core feeding device is arranged on one side of the movable jig device, and the coil feeding device is arranged on the other side of the movable jig device; along the process direction of relay assembly, yoke loading attachment, coil loading attachment, iron core loading attachment and pressure are riveted the device and are set gradually. The invention has the advantages of high circulation efficiency, high precision, good coil form retention and high riveting quality.

Description

Electromagnetic relay and assembling method and equipment thereof

Technical Field

The invention relates to the technical field of relays, in particular to automatic assembling equipment and an assembling method for an electromagnetic relay.

Background

The relay is a novel relay developed in recent years, and is also an automatic switch, and plays a role in automatically switching on and off a circuit. What is different is that the normally closed or open state of the relay is completely dependent on the action of permanent magnetic steel, and the switching state of the relay is completed by triggering pulse electric signals with certain width. In the production and manufacturing process of the relay, in order to improve the production efficiency of the relay, the relay is often split into a plurality of independent unit assemblies, and the unit assemblies are assembled together after the independent unit assemblies are produced.

The patent that the national intellectual property office disclosed the publication number is CN106493539B, and the patent name is an automatic kludge of electromagnetic relay, and it includes the support body, installs in first manipulator, decollator mechanism and the second manipulator of support body, and first manipulator is equipped with two first picks up the piece, and first picks up the piece including installing in the first support of layer board, installing in the second driving piece of first support, sliding connection in the first slide of first support, install in the first cylinder clamp of first slide. The invention realizes the operation of the relay through the dividing device, and the equipment structure is large.

The patent that the national intellectual property office disclosed the publication number is CN109048343B, and the patent name is a relay assembly device, and it includes first workstation, be equipped with transmission device on the first workstation, the transmission device both sides be equipped with casing feeding mechanism, regulation cam feeding mechanism, push pedal feeding mechanism, plectrum feeding mechanism, adjustment button feeding mechanism, compensation lever feeding mechanism, manual and automatic button feeding mechanism, compensation subassembly feeding mechanism, front shroud feeding mechanism and spring and stop button feeding mechanism on the first workstation respectively, spring and stop button feeding mechanism are connected with unloading mechanism simultaneously. The transmission device of the patent is driven by a belt, and the rigidity is lower.

In summary, the existing electromagnetic relay has the following disadvantages: 1. the chain conveying is easy to shake, the rigidity is low, and the precise processing is difficult; 2. the coil conveying efficiency is low, the clamping is easy to deform, and the assembling precision is low; 3. the riveting quality of the relay is not high, and time sequence waiting and position limitation exist between the riveting and the conveying procedures.

Disclosure of Invention

The purpose of the invention is: aiming at the problems that a jig in the existing electromagnetic relay production is low in conveying efficiency and rigidity, a coil is easy to deform during assembly, and riveting quality is difficult to guarantee, the automatic assembly equipment and the automatic assembly method for the electromagnetic relay are provided, wherein the automatic assembly equipment and the automatic assembly method are high in circulation efficiency and high in precision, good in coil form keeping and high in riveting quality.

For the purpose of the invention, the following technical scheme is adopted for realizing the purpose: an automatic assembling device for an electromagnetic relay comprises a rack, and a yoke iron feeding device, a movable jig device, a coil feeding device, an iron core feeding device, a press riveting device and a blanking device which are arranged on the rack; the yoke iron feeding device is positioned at the feeding end of the movable jig device, the press riveting device is positioned at the discharging end of the movable jig device, and the blanking device is connected with the press riveting device; the iron core feeding device is arranged on one side of the movable jig device, and the coil feeding device is arranged on the other side of the movable jig device; the yoke iron feeding device, the coil feeding device, the iron core feeding device and the press riveting device are sequentially arranged along the process direction of relay assembly;

the yoke feeding device is used for separating the yoke and then transporting the yoke to the movable jig device, and the movable jig device is used for driving the jig to move and fastening the jig during processing; the coil feeding device is used for conveying the coil to the jig and assembling the coil on the yoke; the iron core feeding device is used for assembling the iron core into the coil, and the press riveting device is used for press riveting the iron core to realize riveting of the assembling parts; the blanking device is used for blanking the assembled product.

Preferably, the yoke iron feeding device comprises a material turning mechanism, a vibrating material rail, a material distributing mechanism and a yoke iron conveying mechanism; the material turning mechanism is positioned at the feeding end of the vibrating material rail, the material distributing mechanism is positioned at the discharging end of the vibrating material rail, two groups of yoke carrying mechanisms are arranged, and the yoke carrying mechanisms correspond to the material distributing mechanisms; the material turning mechanism is used for turning the yokes at a certain angle, the vibrating material rail is used for conveying the yokes, the material distributing mechanism is used for separating the two yokes from two sides, and the yoke carrying mechanism is used for carrying the yokes.

Preferably, the material distribution mechanism comprises a fixed seat, a material distribution cylinder, a material distribution block and an optical fiber sensor; the distributing cylinder is installed on the fixed seat, the distributing block is movably connected to the fixed seat, the telescopic end of the distributing cylinder is connected with the distributing block, the distributing block is provided with two distributing blocks, the two distributing blocks are arranged side by side, and a cavity for placing a yoke is arranged on the side of the distributing block; the optical fiber sensor is arranged on the fixed seat and corresponds to the yoke iron in the distributing block; the material turning mechanism comprises a material turning seat, a material turning block, a material turning cylinder, a material pushing cylinder and a material pushing block; the material turning seat is fixedly arranged on the rack, the material turning block is rotationally connected to the material turning seat, an L-shaped through groove is formed in the material turning block, the material turning cylinder is hinged to the rack, the telescopic end of the material turning cylinder is connected with the material turning block, the material pushing cylinder is horizontally arranged on the material turning seat, the material pushing block is installed at the telescopic end of the material pushing cylinder, two flat plates are arranged on the material pushing block, and the flat plates are movably matched in the material turning seat; the material turning seat is provided with a feed chute and a discharge chute, and the through groove on the material turning block is matched with the feed chute and the discharge chute in shape.

Preferably, the movable jig device comprises a base, a driving motor, a belt wheel assembly, a driving chain wheel, a driven chain wheel, a chain, an upper pressing plate, a jig unit and a positioning assembly; the base is fixedly arranged on the rack, the driving motor is arranged on the side of the base, the driving chain wheel and the driven chain wheel are rotatably connected to the base, and the belt wheel assembly is connected with an output shaft of the driving motor and a main shaft of the driving chain wheel; the belt wheel assembly comprises a driving synchronous wheel, a driven synchronous wheel and a synchronous belt; the driving chain wheel and the driven chain wheel are duplex chain wheels, and two chain wheels with the same phase angle are arranged on the main shaft; the chain is matched on the driving chain wheel and the driven chain wheel, the outer chain plate of the chain is provided with a connecting lug, and the jig unit is arranged on the connecting lug; the two symmetrical upper pressing plates are arranged on two sides of the base, and the upper pressing plates are right-angle folded plates; the positioning assembly is arranged on the base and is positioned in the middle of the chain; the positioning assembly comprises a positioning cylinder, a lifting plate, a positioning column and a guide seat; the positioning cylinder is fixedly arranged on the base, the lifting plate is arranged at the telescopic end of the positioning cylinder, the telescopic end positioning column is arranged on the lifting plate, and the upper end of the positioning column is provided with a conical surface; the guide seat is arranged on the lifting plate, and a guide hole is formed in the center of the guide seat; the inside guide post that is provided with of base, foretell guiding hole and guide post cooperate.

Preferably, the jig unit comprises a connecting block, a jig body, a positioning hole seat and a tension spring; the connecting block is fixedly arranged on the connecting lug of the chain, and a convex column is arranged on the side of the connecting block; the upper end of the jig body is provided with two sinking grooves, the assembled relay is arranged in the sinking grooves, a convex column is also arranged on the side of the jig body, the lower end of the tension spring is connected with the convex column of the connecting block, and the other end of the tension spring is connected with the convex column of the jig body; the positioning hole seat is fixedly arranged in the middle of the fixture body, and positioning holes are arranged at two ends of the positioning hole seat and correspond to the positioning columns.

Preferably, the coil loading device comprises a material tray frame, a belt conveying assembly, a coil overturning assembly, a first coil carrying assembly and a second coil carrying assembly; the coil conveying assembly is arranged on the side of the belt conveying assembly, and the first coil conveying assembly is connected with the coil rack and the belt conveying assembly; the coil overturning assembly is located at the discharge end of the belt conveying assembly, and the second coil carrying assembly is connected with the coil overturning assembly.

Preferably, the belt conveying assembly comprises a support, a driving motor, belt wheels, a conveying belt and limiting rails, the limiting rails are arranged on the support, the conveying belt is wound on the belt wheels, the belt wheels are driven by the driving motor, and the working section of the conveying belt is a horizontal section and is positioned between the limiting rails; the coil overturning assembly comprises a base, a rotating seat, an overturning cylinder, a coil overturning block, a gear and a rack; the base is arranged on the rack, and the rotating seat is fixedly arranged on the base; the coil overturning block is fan-shaped, a pin shaft is arranged in the middle of the coil overturning block and hinged with the rotating seat, a long groove is radially arranged on the coil overturning block, and the coil is positioned in the long groove; the gear is arranged at the axis position of the coil overturning block; the rack is vertically connected to the base, the bottom of the rack is connected with the telescopic end of the turnover cylinder, and the rack is meshed with the gear; the first coil carrying assembly comprises a moving module, a longitudinal cylinder, a moving mounting plate, a clamping cylinder, a pressing plate, a rotating frame, a clamping piece and a fixed clamping plate; the longitudinal cylinder is vertically arranged on the moving part of the moving module, the moving mounting plate is movably connected to the moving part of the moving module through a slide rail, and the telescopic end of the longitudinal cylinder is connected with the moving mounting plate; the middle part of the compression plate is hinged on the movable mounting plate, the fixed end of the clamping cylinder is hinged on the movable mounting plate, and the telescopic end of the clamping cylinder is hinged with the upper end of the compression plate; the fixed clamping plates are fixedly arranged at the lower ends of the movable mounting plates, the rotating frame is arranged on the side of the fixed clamping plates, a plurality of clamping pieces are arranged, and the middle parts of the clamping pieces are hinged to the rotating frame through pin shafts; the clamping piece upper end be provided with the blind hole, be provided with the spring that is pressed between the blind hole of clamping piece and the splint.

Preferably, the press riveting device comprises an installation table, a carrying mechanism, a dislocation mechanism and a spin riveting mechanism; the mounting table is fixedly arranged on the rack and comprises an upper flat plate, a middle flat plate and a lower flat plate; the carrying mechanism is arranged at the bottom of the upper flat plate, and the dislocation mechanism is arranged at the upper end of the middle flat plate; the rotary riveting mechanisms are arranged at the upper end part and the lower end part of the mounting table; the rotary riveting mechanism corresponds to the dislocation mechanism; the carrying mechanism is used for carrying the assembled relay to the dislocation mechanism, blanking carrying of the riveted relay is achieved, the dislocation mechanism is used for moving the relay laterally to rivet, and the rotary riveting mechanism is used for performing rotary riveting on iron nails to achieve fastening of the relay.

Preferably, the carrying mechanism comprises a horizontal cylinder, a vertical cylinder, a sliding plate and a finger cylinder; the sliding plate is connected to the mounting table through two groups of sliding rails, the movement of the sliding plate is driven by a horizontal cylinder and a vertical cylinder, the finger cylinders are arranged at four corners of the sliding plate, and the number of the finger cylinders is four; the dislocation mechanism comprises a sliding groove seat and positioning mechanisms arranged on two sides of the sliding groove seat, and each positioning mechanism comprises a dislocation cylinder, a moving plate, a positioning seat, a clamping seat and a clamping cylinder; the sliding groove seat is arranged on the mounting table, a round hole is formed in the bottom of the sliding groove seat, the moving plate is movably matched in the sliding groove seat, the dislocation cylinder is arranged at the end of the sliding groove seat, and the telescopic end of the dislocation cylinder is connected with the moving plate; the positioning seat is arranged on the movable plate, a notch is formed in the positioning seat, a relay to be riveted is arranged in the notch, the bottom of the positioning seat is hollowed, a guide pillar is arranged on the side of the positioning seat, a spring is arranged outside the guide pillar, the clamping seat is matched on the guide pillar, and the spring is abutted to the clamping seat; the clamping cylinder is fixedly arranged on the moving plate, and the telescopic end of the clamping cylinder is connected with the clamping seat; the rotary riveting mechanism comprises a riveting cylinder, a lifting frame, a riveting needle mounting seat, a riveting needle, a pressing plate and a rotary riveting machine; the riveting cylinder is fixedly arranged on the mounting table, the lifting frame is movably connected to the mounting table, and the telescopic end of the riveting cylinder is connected with the lifting frame; the lower end of the riveting needle mounting seat is provided with a rectangular groove, and the riveting needle is arranged in the rectangular groove of the riveting needle mounting seat; the riveting needle mounting seat is fixedly arranged at the bottom of the lifting frame through the pressing plate; the spin riveting machine is arranged at the bottom of the sliding groove seat, and a conical tip is arranged at the top end of the spin riveting machine; the top of the spin riveting machine is positioned in the round hole and corresponds to the riveting needle.

An automatic assembling method of an electromagnetic relay comprises the following steps of processing in sequence:

feeding the yoke iron: the yoke is sent out from the material vibrator and reaches a material turning block through groove of the material turning mechanism, then the material turning cylinder drives the material turning block to turn, the material pushing cylinder stretches out a material pushing block, the yoke is pushed into a vibration material rail and conveyed into two superposed material distributing blocks of the material distributing mechanism by the vibration material rail, then the material distributing blocks are respectively pulled out outwards by the two material distributing cylinders and then are conveyed to a movable jig device by two groups of yoke conveying mechanisms, the movable jig device carries the yoke to move step by step, and corresponding processing is carried out at corresponding stations;

(II) coil feeding: a charging tray provided with coils is placed on a charging tray frame, then a first coil carrying assembly carries the coils in a whole row onto a belt conveying assembly, a clamping piece is moved to a designated position by a moving module and a longitudinal cylinder, then a clamping cylinder contracts to drive a pressing plate to rotate, the clamping piece is pressed to expand the distance between the clamping piece and a fixed clamping plate, then the clamping cylinder extends, and the clamping piece clamps the coils under the action of a spring; carrying out carrying, carrying into a belt conveying assembly, conveying the coil into a coil overturning block by the belt conveying assembly, then enabling the coil overturning block to rotate ninety degrees through gear and rack transmission by an overturning cylinder, enabling the coil to stand up, and finally clamping and carrying the standing coil into a jig by a second coil carrying assembly;

(III) iron core feeding: the iron core reaches the iron core separating mechanism under the action of the material vibrator, the separating mechanism separates out a single iron nail, the iron nail falls into the hose and reaches the iron nail feeding mechanism, and the iron nail is assembled inside the coil by the iron nail feeding mechanism;

(IV) riveting the iron core: when the press riveting device works, firstly, the assembled relay is conveyed into the positioning seat by the conveying mechanism, and then the clamping cylinder drives the clamping seat to be close to the positioning seat to clamp the relay; then the dislocation cylinder drives the moving plate to move laterally, the riveting needle mounting seat descends under the action of the riveting cylinder, the riveting needle presses the iron core from above, then the spin riveting machine works, the top of the spin riveting machine rotates and ascends at the same time, and the lower end of the iron core is riveted to realize connection; after riveting is finished, blanking and carrying are realized through a carrying mechanism;

(V) blanking: and the carrying mechanism carries the riveted product to a blanking device for blanking.

The automatic electromagnetic relay assembling equipment adopting the technical scheme has the beneficial effects that:

1. the movable jig device is connected to the chain through the jig unit, so that the circular conveying can be realized, and the production efficiency is improved; the tool unit is connected with the chain through a tension spring, and the positioning assembly is arranged to lift and position the tool unit, so that the tool unit can be fixed, and the rigidity is improved; set up location hole seat and reference column, inject the specific position of treating, improve the accurate nature of relay production.

2. The coil feeding device solves the problems of low coil conveying efficiency, easy deformation during clamping and low assembly precision, and can clamp a plurality of coils simultaneously through the fixed clamping plate and the clamping pieces, so that the feeding efficiency is improved; the spring is clamped and carried by the clamping device, the spring is clamped by the elastic force of the spring, and the cylinder is opened, so that the clamping force can be controlled, the coil is protected, and the damage is avoided; the coils in the transportation process are turned over through the fan-shaped coil turning blocks, the coils are accommodated in the radial grooves of the coil turning blocks, the shape and the size of each groove are matched with those of a single coil, the outer edges of the fan-shaped coil turning blocks can block the coils which are continuously fed, and blockage in the coil conveying process is avoided.

3. The press riveting device is riveted by arranging the spin riveting machine, so that the problem of directly punching and riveting a burst iron nail is avoided, and the riveting quality is improved by a spin riveting mode; the dislocation mechanism is arranged to move the workpiece to the side for riveting, so that the position of the carrying mechanism and the position of the spin riveting mechanism are not interfered, and the workpiece is reset after riveting, so that the working efficiency is improved; the positioning seat and the clamping seat are improved to position and clamp the workpiece, the position precision is improved, and the accuracy of subsequent riveting is improved.

Drawings

Fig. 1 is an exploded view of an embodiment of the present invention.

Fig. 2 is an exploded view of an electromagnetic relay.

Fig. 3 is an exploded view of the yoke charging device.

Fig. 4 is an exploded view of the upender mechanism.

Fig. 5 is an exploded view of the mobile jig device.

Fig. 6 is an exploded view of the jig unit.

Fig. 7 is an exploded view of the coil loading device.

Fig. 8 is an exploded view of the coil flipping assembly.

Fig. 9 is an exploded view of the first coil handling assembly.

Fig. 10 is an exploded view of the core loading apparatus.

Fig. 11 is an exploded view of the clincher device.

Fig. 12 is an exploded view of the misalignment mechanism.

Detailed Description

As shown in fig. 1, an automatic assembling device for an electromagnetic relay includes a frame 1, and a yoke iron feeding device 2, a moving jig device 3, a coil feeding device 4, an iron core feeding device 5, a press-riveting device 6, and a blanking device 7 which are mounted on the frame 1; the yoke iron feeding device 2 is positioned at the feeding end of the movable jig device 3, the press riveting device 6 is positioned at the discharging end of the movable jig device 3, and the blanking device 7 is connected with the press riveting device 6; the iron core feeding device 5 is arranged on one side of the movable jig device 3, and the coil feeding device 4 is arranged on the other side of the movable jig device 3; along the process direction of relay assembly, yoke loading attachment 2, coil loading attachment 4, iron core loading attachment 5 and rivet pressing device 6 set gradually.

The yoke feeding device 2 is used for separating the yoke and then transporting the yoke to the movable jig device 3, and the movable jig device 3 is used for driving the jig to move and fastening the jig during processing; the coil feeding device 4 is used for conveying the coil to the jig and assembling the coil on the yoke; the iron core feeding device 5 is used for assembling the iron core into the coil, and the press riveting device 6 is used for press riveting the iron core to realize riveting of the assembling parts; the blanking device 7 is used for blanking the assembled product.

As shown in fig. 2, the assembled relay is composed of a yoke 100, a coil 200 and an iron core 300, wherein the iron core 300 is arranged in the coil 200, and the lower end of the iron core 300 is riveted with the yoke 100, so that the fixed connection of the three assemblies is realized.

As shown in fig. 3, the yoke loading device 2 includes a material turning mechanism 21, a vibrating material rail 22, a material separating mechanism 23 and a yoke carrying mechanism 24; the material turning mechanism 21 is positioned at the feeding end of the vibrating material rail 22, the material distributing mechanism 23 is positioned at the discharging end of the vibrating material rail 22, two groups of yoke carrying mechanisms 24 are arranged, and the yoke carrying mechanisms 24 correspond to the material distributing mechanism 23; the material turning mechanism 21 is used for turning the yokes at a certain angle, the vibrating material rail 22 is used for conveying the yokes, the material separating mechanism 23 is used for separating two yokes from two sides, and the yoke conveying mechanism 24 is used for conveying the yokes.

The material distributing mechanism 23 comprises a fixed seat 230, a material distributing cylinder 231, a material distributing block 232 and an optical fiber sensor 233; the material distributing cylinder 231 is installed on the fixing seat 230, the material distributing block 232 is movably connected on the fixing seat 230, the telescopic end of the material distributing cylinder 231 is connected with the material distributing block 232, two material distributing blocks 232 are arranged in parallel, and a cavity for placing the yoke is arranged on the side of the material distributing block 232; the optical fiber sensor 233 is installed on the fixing base 230, and the optical fiber sensor 233 corresponds to the yoke in the distributing block 232.

As shown in fig. 4, the material turning mechanism 21 includes a material turning seat 211, a material turning block 212, a material turning cylinder 213, a material pushing cylinder 214 and a material pushing block 215; the material turning seat 211 is fixedly arranged on the frame, the material turning block 212 is rotatably connected to the material turning seat 211, an L-shaped through groove is formed in the material turning block 212, the material turning cylinder 213 is hinged to the frame, the telescopic end of the material turning cylinder 213 is connected with the material turning block 212, the material pushing cylinder 214 is horizontally arranged on the material turning seat 211, the material pushing block 215 is arranged at the telescopic end of the material pushing cylinder 214, two flat plates 2151 are arranged on the material pushing block 215, and the flat plates 2151 are movably matched in the material turning seat 211; the material turning seat 211 is provided with a feed chute 2111 and a discharge chute 2112, and the through chute on the material turning block 212 is matched with the feed chute 2111 and the discharge chute 2112 in shape.

The yoke carrying mechanism 24 comprises two moving degrees of freedom, namely horizontal and vertical, and a clamping action of a moving tail end, and the yoke carrying mechanism 24 is provided with two groups which are arranged in a mirror image mode.

When the yoke feeding device 2 works, the yokes are sent out from the material vibrator and reach the through grooves of the material turning block 212 of the material turning mechanism 21, then the material turning cylinder 213 drives the material turning block 212 to turn, the material pushing cylinder 214 extends the material pushing block 215 out, the yokes are pushed into the vibrating material rail 22 and are conveyed to two superposed material distributing blocks 232 of the material distributing mechanism 23 through the vibrating material rail 22, then the material distributing blocks 232 are respectively pulled out outwards by the two material distributing cylinders 231, and then the yokes are conveyed through the two groups of yoke conveying mechanisms 24.

As shown in fig. 5, the movable jig device 3 includes a base 31, a driving motor 32, a pulley assembly 33, a driving sprocket 34, a driven sprocket 35, a chain 36, an upper press plate 37, a jig unit 38 and a positioning assembly 39; the base 31 is fixedly arranged on the frame, the driving motor 32 is arranged on the side of the base 31, the driving chain wheel 34 and the driven chain wheel 35 are rotationally connected on the base 31, and the belt wheel assembly 33 is connected with the output shaft of the driving motor 32 and the main shaft of the driving chain wheel 34; the belt wheel assembly 33 comprises a driving synchronous wheel, a driven synchronous wheel and a synchronous belt; the driving chain wheel 34 and the driven chain wheel 35 are duplex chain wheels, and two chain wheels with the same phase angle are arranged on the main shaft; the chain 36 is matched on the driving chain wheel 34 and the driven chain wheel 35, the outer chain plate of the chain 36 is provided with a connecting lug, and the jig unit 38 is arranged on the connecting lug; the two upper pressing plates 37 are symmetrical, the upper pressing plates 37 are arranged on two sides of the base 31, and the upper pressing plates 37 are right-angle folded plates; the positioning assembly 39 is arranged on the base 31, and the positioning assembly 39 is positioned in the middle of the chain 36; the positioning assembly 39 comprises a positioning cylinder 391, a lifting plate 392, a positioning column 393 and a guide seat 394; the positioning cylinder 391 is fixedly arranged on the base 31, the lifting plate 392 is arranged at the telescopic end of the positioning cylinder 391, the positioning column 393 at the telescopic end is arranged on the lifting plate 392, and the upper end of the positioning column 393 is provided with a conical surface; the guide seat 394 is arranged on the lifting plate 392, and a guide hole is formed in the center of the guide seat 394; the base 31 is provided with a guide post inside, and the guide hole is matched with the guide post.

As shown in fig. 6, the jig unit 38 includes a connection block 381, a jig body 382, a positioning hole seat 383, and a tension spring 384; the connecting block 381 is fixedly arranged on a connecting lug of the chain, and a convex column is arranged on the side of the connecting block 381; the upper end of the jig body 382 is provided with two sinking grooves 3821, the assembled relay is arranged in the sinking grooves 3821, a convex column is also arranged on the side of the jig body 382, the lower end of the tension spring 384 is connected with the convex column of the connecting block 381, and the other end of the tension spring 384 is connected with the convex column of the jig body 382; the positioning hole seat 383 is fixedly arranged in the middle of the jig body 382, and positioning holes are formed in two ends of the positioning hole seat 383 and correspond to the positioning columns 393.

When the movable jig device 3 works, the driving motor 32 drives the chain 36 to intermittently rotate, so that the jig unit 38 is rotated, when the jig unit 38 stops, the positioning component 39 is used for positioning, the positioning cylinder 391 lifts the positioning column 393 and inserts the positioning column 393 into the positioning hole seat 383, then the whole jig body 382 is lifted upwards, leaves the connecting block 381 and presses the upper pressing plate 37 to realize fixation, and at the moment, a workpiece in the jig body 382 is processed; then the positioning cylinder 391 descends, and the tightening spring 384 returns the jig body 382 to the connecting block 381, and the rotation is continued.

The movable jig device 3 solves the problems that chain conveying is easy to shake, rigidity is low, and accurate machining is difficult; the jig unit 38 is connected to the chain, so that circular conveying can be realized, and the production efficiency is improved; a tensioning spring 384 is arranged between the jig unit 38 and the chain 36 for connection, and a positioning component 39 is arranged for lifting and positioning the jig unit 38, so that the jig unit 38 can be fixed, and the rigidity is improved; set up location hole seat 383 and reference column 393, inject the specific position of treating, improve the accurate nature of relay production.

As shown in fig. 7, the coil loading device 4 includes a tray 41, a belt feeding assembly 42, a coil overturning assembly 43, a first coil handling assembly 44 and a second coil handling assembly 45; the tray frame 41 is arranged on the side of the belt conveying component 42, and the first coil handling component 44 is connected with the tray frame 41 and the belt conveying component 42; the coil turning assembly 43 is positioned at the discharge end of the belt conveying assembly 42, and the second coil carrying assembly 45 is connected with the coil turning assembly 43.

The belt conveying assembly 42 comprises a support, a driving motor, a belt wheel, a conveying belt and limiting rails, the limiting rails are arranged on the support, the conveying belt is wound on the belt wheel, the belt wheel is driven by the driving motor, and the working section of the conveying belt is a horizontal section and is located between the limiting rails.

As shown in fig. 8, the coil overturning assembly 43 comprises a base 431, a rotating base 432, an overturning cylinder 433, a coil overturning block 434, a gear 435 and a rack 436; the base 431 is arranged on the frame, and the rotating seat 432 is fixedly arranged on the base 431; the coil overturning block 434 is fan-shaped, a pin shaft is arranged in the middle of the coil overturning block 434 and hinged with the rotating seat 432, a long groove is radially arranged on the coil overturning block 434, and the coil is positioned in the long groove; the gear 435 is arranged at the axis position of the coil overturning block 434; the rack 436 is vertically connected to the base 431, the bottom of the rack 436 is connected with the telescopic end of the turnover cylinder 433, and the rack 436 is meshed with the gear 435.

As shown in fig. 9, the first coil handling assembly 44 includes a moving module 441, a longitudinal cylinder 442, a moving mounting plate 443, a clamping cylinder 444, a pressing plate 445, a rotating frame 446, a clamping plate 447 and a fixing clamping plate 448; the longitudinal cylinder 442 is vertically installed on the moving part of the moving module 441, the moving installation plate 443 is movably connected to the moving part of the moving module 441 through a sliding rail, and the telescopic end of the longitudinal cylinder 442 is connected with the moving installation plate 443; the middle part of the pressing plate 445 is hinged on the movable mounting plate 443, the fixed end of the clamping cylinder 444 is hinged on the movable mounting plate 443, and the telescopic end of the clamping cylinder 444 is hinged with the upper end of the pressing plate 445; the fixed clamping plate 448 is fixedly arranged at the lower end of the movable mounting plate 443, the rotating frame 446 is arranged on the side of the fixed clamping plate 448, a plurality of clamping plates 447 are arranged, and the middle parts of the clamping plates 447 are hinged on the rotating frame 446 through pin shafts; the upper end of the clamping piece 447 is provided with a blind hole, and a compressed spring is arranged between the blind hole of the clamping piece 447 and the clamping plate 448.

The second coil handling assembly 45 includes two degrees of freedom, horizontal and vertical, to move and perform the clamping movement of the end, and the second coil handling assembly 45 can clamp two coils.

When the coil feeding device 4 works, a coil tray provided with coils is placed on the coil tray frame 41, then the first coil conveying assembly 44 conveys the coils in a whole row to the belt conveying assembly 42, the clamping piece 447 is moved to a specified position by the moving module 441 and the longitudinal cylinder 442, then the clamping cylinder 444 contracts to drive the pressing plate 445 to rotate, the clamping piece 447 is pressed to expand the distance between the clamping piece 447 and the fixed clamping plate 448, then the clamping cylinder 444 extends, and the clamping piece 447 clamps the coils under the action of the spring; and (3) carrying, namely carrying into the belt conveying assembly 42, conveying the coil into the coil overturning block 434 by the belt conveying assembly 42, then enabling the coil overturning block 434 to rotate by ninety degrees through gear and rack transmission by the overturning air cylinder 433, erecting the coil, and finally clamping and carrying the erected coil into a jig by the second coil carrying assembly 45.

The coil feeding device 4 solves the problems of low coil conveying efficiency, easy deformation during clamping and low assembly precision, and can clamp a plurality of coils at the same time through the fixed clamping plate 448 and the clamping plates 447, so that the feeding efficiency is improved; the spring is clamped and carried by the clamping device, the spring is clamped by the elastic force of the spring, and the cylinder is opened, so that the clamping force can be controlled, the coil is protected, and the damage is avoided; the coil in the transportation process is turned over through the fan-shaped coil turning block 434, the coil is accommodated in the radial groove of the coil turning block 434, the shape and the size of the groove are matched with those of a single coil, the coil which is continuously fed into the coil can be blocked by the outer edge of the fan-shaped coil turning block 434, and blockage in the coil conveying process is avoided.

As shown in fig. 10, the core loading device 5 includes a core separating mechanism 51, a nail feeding mechanism 52 and hoses of the two.

As shown in fig. 11, the rivet pressing device 6 includes an installation table 61, a carrying mechanism 62, a displacement mechanism 63 and a spin riveting mechanism 64; the mounting table 61 is fixedly arranged on the rack, and the mounting table 61 comprises an upper flat plate 611, a middle flat plate 612 and a lower flat plate 613; the conveying mechanism 62 is arranged at the bottom of the upper flat plate 611, and the dislocation mechanism 63 is arranged at the upper end of the middle flat plate 612; the spin riveting mechanisms 64 are arranged at the upper end part and the lower end part of the mounting table 61; the riveting mechanism 64 corresponds to the dislocation mechanism 63; the carrying mechanism 62 is used for carrying the assembled relay to the dislocation mechanism 63 and carrying the riveted relay in a blanking mode, the dislocation mechanism 63 is used for moving the relay laterally to rivet the relay, and the riveting mechanism 64 is used for riveting iron nails in a screwing mode to achieve fastening of the relay.

The carrying mechanism 62 comprises a horizontal cylinder 621, a vertical cylinder 622, a sliding plate 623 and a finger cylinder 624; the sliding plate 623 is connected to the mounting table 61 through two groups of sliding rails, the movement of the sliding plate 623 is driven by a horizontal cylinder 621 and a vertical cylinder 622, the finger cylinders 624 are arranged at four corners of the sliding plate 623, and the number of the finger cylinders 624 is four; the conveying mechanism 62 can convey two rows of relays simultaneously, and can realize synchronous conveying of the dislocation mechanism 63 and the conveying dislocation mechanism 63.

As shown in fig. 12, the shifting mechanism 63 includes a chute seat 631 and positioning mechanisms disposed at two sides of the chute seat 631, and the positioning mechanisms include a shifting cylinder 632, a moving plate 633, a positioning seat 634, a clamping seat 635 and a clamping cylinder 636; the sliding groove seat 631 is arranged on the mounting table 61, a round hole 6311 is arranged at the bottom of the sliding groove seat 631, the moving plate 633 is movably matched in the sliding groove seat 631, the dislocation cylinder 632 is arranged at the end of the sliding groove seat 631, and the telescopic end of the dislocation cylinder 632 is connected with the moving plate 633; the positioning seat 634 is arranged on the moving plate 633, a notch is arranged on the positioning seat 634, a relay to be riveted is arranged in the notch, the bottom of the positioning seat 634 is hollowed, a guide pillar is arranged on the side of the positioning seat 634, a spring is arranged outside the guide pillar, the clamping seat 635 is matched on the guide pillar, and the spring is abutted to the clamping seat 635; the clamping cylinder 636 is fixedly arranged on the moving plate 633, and the telescopic end of the clamping cylinder 636 is connected with the clamping seat 635. In order to keep the directions of the relays processed in the positioning mechanisms at the two ends consistent, the clamping seat 635 at the other side is connected with the telescopic end of the clamping cylinder 636 through a connecting piece 637.

The riveting mechanism 64 comprises a riveting cylinder 641, a lifting frame 642, a riveting needle mounting seat 643, a riveting needle 644, a pressing plate 645 and a riveting machine 646; the riveting cylinder 641 is fixedly arranged on the installation table 61, the lifting frame 642 is movably connected to the installation table 61, and the telescopic end of the riveting cylinder 641 is connected with the lifting frame 642; a rectangular groove is formed in the lower end of the riveting needle mounting seat 643, and the riveting needle 644 is arranged in the rectangular groove of the riveting needle mounting seat 643; the riveting needle installation seat 643 is fixedly arranged at the bottom of the lifting frame 642 through the pressing plate 645; the spin riveting machine 646 is arranged at the bottom of the sliding groove seat 631, and a conical tip is arranged at the top end of the spin riveting machine 646; the top of riveter 646 is located in circular hole 6311, corresponding to rivet 644.

When the rivet pressing device 6 works, firstly the conveying mechanism 62 conveys the assembled relay to the positioning seat 634, and then the clamping cylinder 636 drives the clamping seat 635 to be close to the positioning seat 634 to clamp the relay; then the dislocation cylinder 632 drives the moving plate 633 to move laterally, the riveting needle mounting seat 643 descends under the action of the riveting cylinder 641, the riveting needle 644 presses the iron core from above, then the spin riveting machine 646 works, the top of the spin riveting machine 646 rotates while ascending, the lower end of the iron core is riveted, and connection is achieved; and the blanking is carried through the carrying mechanism 62 after the riveting is finished.

The press riveting device 6 solves the problems that the relay riveting quality is low, and time sequence waiting and position limitation exist between the riveting and carrying processes; the riveting machine is arranged for riveting, so that the problem of direct punching riveting and expanding of broken iron nails is avoided, and the riveting quality is improved by the riveting mode; the dislocation mechanism 63 is arranged to move the workpiece to the side for riveting, so that the positions of the conveying mechanism 62 and the spin riveting mechanism 64 are not interfered, and the workpiece is reset after riveting, thereby improving the working efficiency; the positioning seat 634 and the clamping seat 635 are improved to position and clamp the workpiece, so that the position precision is improved, and the accuracy of subsequent riveting is improved.

The electromagnetic relay is obtained by the automatic assembling method through the automatic assembling equipment of the electromagnetic relay, and is specifically processed through the following steps in sequence:

feeding the yoke iron: the yoke is sent out from the vibrator and reaches a through groove of a material turning block 212 of the material turning mechanism 21, then a material turning cylinder 213 drives the material turning block 212 to turn, a material pushing cylinder 214 extends a material pushing block 215, the yoke is pushed into a vibrating material rail 22 and conveyed into two superposed material distributing blocks 232 of a material distributing mechanism 23 by the vibrating material rail 22, then the material distributing blocks 232 are respectively pulled out outwards by two material distributing cylinders 231 and then conveyed to the movable jig device 3 through two groups of yoke conveying mechanisms 24, the movable jig device 3 carries the yoke to move step by step, and corresponding processing is carried out at corresponding stations;

(II) coil feeding: the coil tray with coils is placed on the coil tray frame 41, then the first coil conveying assembly 44 conveys the coils in a whole row to the belt conveying assembly 42, the clamping piece 447 is moved to a specified position by the moving module 441 and the longitudinal cylinder 442, then the clamping cylinder 444 contracts to drive the pressing plate 445 to rotate, the clamping piece 447 is pressed, the distance between the clamping piece 447 and the fixed clamping plate 448 is expanded, then the clamping cylinder 444 extends, and the clamping piece 447 clamps the coils under the action of the spring; the coil is conveyed to the belt conveying assembly 42, the belt conveying assembly 42 conveys the coil to the coil overturning block 434, then the overturning cylinder 433 rotates through gear and rack transmission to enable the coil overturning block 434 to rotate ninety degrees, so that the coil is erected, and finally the erected coil is clamped and conveyed to the jig by the second coil conveying assembly 45;

(III) iron core feeding: the iron core reaches the iron core separating mechanism 51 under the action of the material vibrator, the separating mechanism 51 separates a single iron nail, the iron nail falls into a hose and reaches the iron nail feeding mechanism 52, and the iron nail is assembled inside the coil by the iron nail feeding mechanism 52;

(IV) riveting the iron core: when the rivet pressing device 6 works, firstly the conveying mechanism 62 conveys the assembled relay to the positioning seat 634, and then the clamping cylinder 636 drives the clamping seat 635 to be close to the positioning seat 634 to clamp the relay; then the dislocation cylinder 632 drives the moving plate 633 to move laterally, the riveting needle mounting seat 643 descends under the action of the riveting cylinder 641, the riveting needle 644 presses the iron core from above, then the spin riveting machine 646 works, the top of the spin riveting machine 646 rotates while ascending, the lower end of the iron core is riveted, and connection is achieved; after riveting is finished, blanking and carrying are realized through the carrying mechanism 62;

(V) blanking: the conveying mechanism 62 conveys the caulked product to the blanking device 7 for blanking.

Claims

1. The automatic assembling equipment for the electromagnetic relay is characterized by comprising a rack (1), a yoke iron feeding device (2), a movable jig device (3), a coil feeding device (4), an iron core feeding device (5), a press riveting device (6) and a blanking device (7), wherein the yoke iron feeding device (2), the movable jig device, the coil feeding device (4), the iron core feeding device and the blanking device are mounted on the rack (1); the yoke iron feeding device (2) is positioned at the feeding end of the movable jig device (3), the press riveting device (6) is positioned at the discharging end of the movable jig device (3), and the blanking device (7) is connected with the press riveting device (6); the iron core feeding device (5) is arranged on one side of the movable jig device (3), and the coil feeding device (4) is arranged on the other side of the movable jig device (3); the yoke iron feeding device (2), the coil feeding device (4), the iron core feeding device (5) and the press riveting device (6) are sequentially arranged along the process direction of relay assembly;

the yoke feeding device (2) is used for separating the yoke and then transporting the yoke to the movable jig device (3), and the movable jig device (3) is used for driving the jig to move and fastening the jig during processing; the coil feeding device (4) is used for conveying the coil to the jig and assembling the coil on the yoke; the iron core feeding device (5) is used for assembling the iron core into the coil, and the press riveting device (6) is used for press riveting the iron core to realize riveting of the assembling parts; and the blanking device (7) is used for blanking the assembled product.

2. The automatic assembling equipment of the electromagnetic relay according to claim 1, characterized in that the yoke loading device (2) comprises a material turning mechanism (21), a vibrating material rail (22), a material distributing mechanism (23) and a yoke carrying mechanism (24); the material turning mechanism (21) is positioned at the feeding end of the vibrating material rail (22), the material distributing mechanism (23) is positioned at the discharging end of the vibrating material rail (22), two groups of yoke carrying mechanisms (24) are arranged, and the yoke carrying mechanisms (24) correspond to the material distributing mechanism (23); the material turning mechanism (21) is used for turning the yokes at a certain angle, the vibrating material rail (22) is used for conveying the yokes, the material distributing mechanism (23) is used for separating two yokes from two sides, and the yoke conveying mechanism (24) is used for conveying the yokes.

3. The automatic assembling equipment of the electromagnetic relay as claimed in claim 1, wherein the material separating mechanism (23) comprises a fixed seat (230), a material separating cylinder (231), a material separating block (232) and an optical fiber sensor (233); the distribution cylinder (231) is installed on the fixed seat (230), the distribution blocks (232) are movably connected to the fixed seat (230), the telescopic end of the distribution cylinder (231) is connected with the distribution blocks (232), two distribution blocks (232) are arranged, the two distribution blocks (232) are arranged side by side, and cavities for placing yokes are formed in the lateral side of the distribution blocks (232); the optical fiber sensor (233) is arranged on the fixed seat (230), and the optical fiber sensor (233) corresponds to the yoke iron in the distributing block (232); the material turning mechanism (21) comprises a material turning seat (211), a material turning block (212), a material turning cylinder (213), a material pushing cylinder (214) and a material pushing block (215); the material turning seat (211) is fixedly arranged on the rack, the material turning block (212) is rotatably connected to the material turning seat (211), an L-shaped through groove is formed in the material turning block (212), the material turning cylinder (213) is hinged to the rack, the telescopic end of the material turning cylinder (213) is connected with the material turning block (212), the material pushing cylinder (214) is horizontally arranged on the material turning seat (211), the material pushing block (215) is arranged at the telescopic end of the material pushing cylinder (214), two flat plates (2151) are arranged on the material pushing block (215), and the flat plates (2151) are movably matched in the material turning seat (211); the material turning seat (211) is provided with a feed chute (2111) and a discharge chute (2112), and the through chute on the material turning block (212) is matched with the feed chute (2111) and the discharge chute (2112) in shape.

4. The automatic assembling equipment of the electromagnetic relay as claimed in claim 1, wherein the moving jig device (3) comprises a base (31), a driving motor (32), a pulley assembly (33), a driving sprocket (34), a driven sprocket (35), a chain (36), an upper pressing plate (37), a jig unit (38) and a positioning assembly (39); the base (31) is fixedly arranged on the rack, the driving motor (32) is arranged on the side of the base (31), the driving chain wheel (34) and the driven chain wheel (35) are rotationally connected to the base (31), and the belt wheel assembly (33) is connected with an output shaft of the driving motor (32) and a main shaft of the driving chain wheel (34); the belt wheel assembly (33) comprises a driving synchronous wheel, a driven synchronous wheel and a synchronous belt; the driving chain wheel (34) and the driven chain wheel (35) are duplex chain wheels, and two chain wheels with the same phase angle are arranged on the main shaft; the chain (36) is matched on the driving chain wheel (34) and the driven chain wheel (35), the outer chain plate of the chain (36) is provided with a connecting lug, and the jig unit (38) is arranged on the connecting lug; the two symmetrical upper pressing plates (37) are arranged, the upper pressing plates (37) are arranged on two sides of the base (31), and the upper pressing plates (37) are right-angle folded plates; the positioning assembly (39) is arranged on the base (31), and the positioning assembly (39) is positioned in the middle of the chain (36); the positioning assembly (39) comprises a positioning cylinder (391), a lifting plate (392), a positioning column (393) and a guide seat (394); the positioning cylinder (391) is fixedly arranged on the base (31), the lifting plate (392) is arranged at the telescopic end of the positioning cylinder (391), the telescopic end positioning column (393) is arranged on the lifting plate (392), and the upper end of the positioning column (393) is provided with a conical surface; the guide seat (394) is arranged on the lifting plate (392), and a guide hole is formed in the center of the guide seat (394); the base (31) is internally provided with a guide post, and the guide hole is matched with the guide post.

5. The automatic assembling equipment of the electromagnetic relay as claimed in claim 1, wherein the jig unit (38) comprises a connecting block (381), a jig body (382), a positioning hole seat (383) and a tension spring (384); the connecting block (381) is fixedly arranged on a connecting lug of the chain, and a convex column is arranged on the side of the connecting block (381); the upper end of the jig body (382) is provided with two sinking grooves (3821), the assembled relay is arranged in the sinking grooves (3821), a convex column is also arranged on the side of the jig body (382), the lower end of the tension spring (384) is connected with the convex column of the connecting block (381), and the other end of the tension spring is connected with the convex column of the jig body (382); the positioning hole seat (383) is fixedly arranged in the middle of the jig body (382), and positioning holes are formed in the two ends of the positioning hole seat (383) and correspond to the positioning columns (393).

6. An electromagnetic relay automatic assembly apparatus according to claim 1, characterized in that the coil loading device (4) comprises a material tray frame (41), a belt conveying assembly (42), a coil overturning assembly (43), a first coil handling assembly (44) and a second coil handling assembly (45); the material tray frame (41) is arranged on the side of the belt conveying assembly (42), and the first coil conveying assembly (44) is connected with the material tray frame (41) and the belt conveying assembly (42); the coil overturning assembly (43) is positioned at the discharge end of the belt conveying assembly (42), and the second coil carrying assembly (45) is connected with the coil overturning assembly (43).

7. The automatic assembling device for the electromagnetic relay, as claimed in claim 1, wherein the belt conveying assembly (42) comprises a support, a driving motor, a belt wheel, a conveying belt and limit rails, the limit rails are arranged on the support, the conveying belt is wound on the belt wheel, the belt wheel is driven by the driving motor, the working section of the conveying belt is a horizontal section and is positioned between the limit rails; the coil overturning assembly (43) comprises a base (431), a rotating seat (432), an overturning air cylinder (433), a coil overturning block (434), a gear (435) and a rack (436); the base (431) is arranged on the frame, and the rotating seat (432) is fixedly arranged on the base (431); the coil overturning block (434) is fan-shaped, a pin shaft is arranged in the middle of the coil overturning block (434) and hinged with the rotating seat (432), a long groove is radially arranged on the coil overturning block (434), and the coil is positioned in the long groove; the gear (435) is arranged at the axis position of the coil overturning block (434); the rack (436) is vertically connected to the base (431), the bottom of the rack (436) is connected with the telescopic end of the turnover cylinder (433), and the rack (436) is meshed with the gear (435); the first coil handling assembly (44) comprises a moving module (441), a longitudinal air cylinder (442), a moving mounting plate (443), a clamping air cylinder (444), a pressing plate (445), a rotating frame (446), a clamping plate (447) and a fixing clamping plate (448); the longitudinal cylinder (442) is vertically arranged on a moving part of the moving module (441), the moving mounting plate (443) is movably connected to the moving part of the moving module (441) through a sliding rail, and the telescopic end of the longitudinal cylinder (442) is connected with the moving mounting plate (443); the middle part of the pressing plate (445) is hinged on the movable mounting plate (443), the fixed end of the clamping cylinder (444) is hinged on the movable mounting plate (443), and the telescopic end of the clamping cylinder (444) is hinged with the upper end of the pressing plate (445); the fixed clamping plate (448) is fixedly arranged at the lower end of the movable mounting plate (443), the rotating frame (446) is arranged on the side of the fixed clamping plate (448), a plurality of clamping plates (447) are arranged, and the middle parts of the clamping plates (447) are hinged on the rotating frame (446) through pin shafts; the upper end of the clamping piece (447) is provided with a blind hole, and a compressed spring is arranged between the blind hole of the clamping piece (447) and the clamping plate (448).

8. The automatic assembling equipment of the electromagnetic relay according to claim 1, characterized in that the riveting device (6) comprises a mounting table (61), a carrying mechanism (62), a dislocation mechanism (63) and a spin riveting mechanism (64); the mounting table (61) is fixedly arranged on the rack, and the mounting table (61) comprises an upper flat plate (611), a middle flat plate (612) and a lower flat plate (613); the conveying mechanism (62) is arranged at the bottom of the upper flat plate (611), and the dislocation mechanism (63) is arranged at the upper end of the middle flat plate (612); the rotary riveting mechanisms (64) are arranged at the upper end part and the lower end part of the mounting table (61); the rotary riveting mechanism (64) corresponds to the dislocation mechanism (63); the conveying mechanism (62) is used for conveying the assembled relay to the dislocation mechanism (63) and conveying the riveted relay to realize blanking, the dislocation mechanism (63) is used for moving the relay laterally to rivet, and the spin riveting mechanism (64) is used for spin riveting iron nails to realize fastening of the relay; the carrying mechanism (62) comprises a horizontal cylinder (621), a vertical cylinder (622), a sliding plate (623) and a finger cylinder (624); the sliding plate (623) is connected to the mounting table (61) through two groups of sliding rails, the movement of the sliding plate (623) is driven by a horizontal cylinder (621) and a vertical cylinder (622), the finger cylinders (624) are arranged at four corners of the sliding plate (623), and the number of the finger cylinders (624) is four; the dislocation mechanism (63) comprises a sliding groove seat (631) and positioning mechanisms arranged on two sides of the sliding groove seat (631), and the positioning mechanisms comprise a dislocation cylinder (632), a moving plate (633), a positioning seat (634), a clamping seat (635) and a clamping cylinder (636); the sliding groove seat (631) is arranged on the mounting table (61), a round hole (6311) is formed in the bottom of the sliding groove seat (631), the moving plate (633) is movably matched in the sliding groove seat (631), the dislocation cylinder (632) is arranged at the end of the sliding groove seat (631), and the telescopic end of the dislocation cylinder (632) is connected with the moving plate (633); the positioning seat (634) is arranged on the moving plate (633), a notch is formed in the positioning seat (634), a relay to be riveted is arranged in the notch, the bottom of the positioning seat (634) is hollowed, a guide pillar is arranged on the side of the positioning seat (634), a spring is arranged outside the guide pillar, the clamping seat (635) is matched on the guide pillar, and the spring abuts against the clamping seat (635); the clamping cylinder (636) is fixedly arranged on the moving plate (633), and the telescopic end of the clamping cylinder (636) is connected with the clamping seat (635); the spin riveting mechanism (64) comprises a riveting cylinder (641), a lifting frame (642), a riveting needle mounting seat (643), a riveting needle (644), a pressing plate (645) and a spin riveting machine (646); the riveting cylinder (641) is fixedly arranged on the mounting table (61), the lifting frame (642) is movably connected to the mounting table (61), and the telescopic end of the riveting cylinder (641) is connected with the lifting frame (642); the lower end of the riveting needle mounting seat (643) is provided with a rectangular groove, and the riveting needle (644) is arranged in the rectangular groove of the riveting needle mounting seat (643); the riveting needle mounting seat (643) is fixedly arranged at the bottom of the lifting frame (642) through the pressing plate (645); the spin riveting machine (646) is arranged at the bottom of the sliding groove seat (631), and the top end of the spin riveting machine (646) is provided with a conical tip; the top of the spin riveting machine (646) is positioned in a round hole (6311) and corresponds to the riveting needle (644).

9. An automatic assembling method of an electromagnetic relay is characterized by comprising the following steps of processing in sequence:

feeding the yoke iron: the yokes are sent out from the vibrator and reach a through groove of an overturning block (212) of the overturning mechanism (21), then the overturning block (212) is driven to overturn by an overturning cylinder (213), a pushing block (215) is extended out by a pushing cylinder (214), the yokes are pushed into a vibrating material rail (22) and conveyed into two overlapped distributing blocks (232) of the distributing mechanism (23) by the vibrating material rail (22), then the distributing blocks (232) are respectively pulled out outwards by the two distributing cylinders (231), then the yokes are conveyed to the movable jig device (3) through the two groups of yoke conveying mechanisms (24), the movable jig device (3) carries the yokes to move in a stepping mode, and corresponding processing is carried out at corresponding stations;

coil feeding: the coil loading tray is placed on the tray frame (41), then the first coil carrying assembly (44) carries the coils in a whole row onto the belt conveying assembly (42), firstly, the clamping piece (447) is moved to a specified position by the moving module (441) and the longitudinal cylinder (442), then the clamping cylinder (444) contracts to drive the pressing plate (445) to rotate, the clamping piece (447) is pressed to expand the distance between the clamping piece (447) and the fixed clamping plate (448), then the clamping cylinder (444) extends, and the clamping piece (447) clamps the coils under the action of the spring; the coil overturning machine is used for carrying out conveying, conveying the coil to a belt conveying assembly (42), conveying the coil to a coil overturning block (434) by the belt conveying assembly (42), enabling the coil overturning block (434) to rotate ninety degrees through gear and rack transmission by an overturning cylinder (433), erecting the coil, and finally clamping and conveying the erected coil to a jig by a second coil conveying assembly (45);

iron core feeding: the iron core reaches the iron core separating mechanism (51) under the action of the material vibrator, the separating mechanism (51) separates a single iron nail, the iron nail falls into the hose and reaches the iron nail feeding mechanism (52), and the iron nail is assembled inside the coil by the iron nail feeding mechanism (52);

riveting the iron core: when the rivet pressing device (6) works, firstly, the assembled relay is conveyed to the positioning seat (634) by the conveying mechanism (62), and then the clamping cylinder (636) drives the clamping seat (635) to be close to the positioning seat (634) to clamp the relay; then the dislocation cylinder (632) drives the moving plate (633) to move laterally, the riveting needle mounting seat (643) descends under the action of the riveting cylinder (641), the riveting needle (644) presses the iron core from the upper part, then the spin riveting machine (646) works, the top of the spin riveting machine (646) rotates and ascends, the lower end of the iron core is riveted, and connection is achieved; after riveting is finished, blanking and carrying are realized through a carrying mechanism (62);

blanking: the conveying mechanism (62) conveys the riveted products to a blanking device (7) for blanking.

10. An electromagnetic relay characterized by being obtained by the automatic assembling method according to claim 9.