Automatic assembly line and assembly process of ship-shaped overload protection switch

Abstract

The invention provides an automatic assembly line and assembly process for a ship-shaped overload protection switch, and the assembly line comprises a bimetallic terminal riveting device, an elastic sheet assembling and bending device, a terminal assembling device, a spring lamp button assembling device, a lifting sheet assembling device, and a cover plate assembling device, bimetal riveting, elastic piece bending assembly, terminal assembly, spring lamp button assembly, lifting piece assembly and cover plate assembly are integrated on one production line according to a reasonable process sequence, a cover plate serves as a carrier and sequentially flows through all stations, assembly of all components is automatically completed, and compared with the prior art, the production efficiency is greatly improved, and the production cost is reduced. And the production cost is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of switch assembly, in particular to an automatic assembly line and process for a boat-shaped overload protection switch. BACKGROUND

[0002] In the prior art, the assembly of a boat-shaped overload protection switch relies on manual operation. The operator usually needs to manually pick up, align and press into the housing base a plurality of small and precise components such as button spring, terminal, button, spring sheet, etc. This process is not only tedious and inefficient, but also requires high proficiency and concentration of the operator. Due to the small size and compact structure of the components, manual assembly is prone to quality defects such as missing, misplacing or improper installation, which makes it difficult to guarantee the product qualification rate. At the same time, the increasing labor cost also brings great pressure to production. SUMMARY

[0003] Therefore, the technical problem to be solved by the present application is to overcome the defects of high production cost in the prior art by providing an automatic assembly line and process for a boat-shaped overload protection switch, which is fast and convenient to assemble and has low production cost.

[0004] To this end, the present application provides an automatic assembly line for a boat-shaped overload protection switch, comprising a double-gold terminal riveting device, a spring sheet assembly and bending device, a terminal assembly device, a spring lamp button assembly device, a pull-tab assembly device and a cover plate assembly device arranged in sequence. The double-gold terminal riveting device rivets and fixes one end of a bimetallic sheet and a first terminal to form a double-gold terminal assembly. The spring sheet assembly and bending device inserts and fixes the other end of the bimetallic sheet with a spring sheet, so that the spring sheet, bimetallic sheet and first terminal form a first terminal assembly. After the bimetallic sheet is bent by a certain angle, the first terminal assembly is assembled with the base. The terminal assembly device assembles two second terminals with the base. The spring lamp button assembly device assembles two conductive springs, button springs, lamp assemblies, buttons and the base. The pull-tab assembly device assembles a pull-tab with the base. The cover plate assembly device assembles a cover plate with the base.

[0005] The double-gold terminal riveting device comprises a first turntable, a first terminal feeding mechanism, a terminal pressing mechanism, a bimetallic sheet feeding mechanism, a riveting mechanism and a first material moving mechanism.

[0006] The first rotary disc is rotatably installed on the first frame and has a plurality of first clamps distributed along the circumference thereof; a first terminal feeding mechanism, a terminal pressing mechanism, a bimetallic sheet feeding mechanism, a riveting mechanism and a first material moving mechanism are sequentially distributed at the periphery of the first rotary disc, the first terminal feeding mechanism moves the first terminal to the first clamps, the terminal pressing mechanism presses the first terminal, the bimetallic sheet feeding mechanism moves the bimetallic sheet to the first clamps, one end of the bimetallic sheet abuts against the first terminal, the riveting mechanism rivets and fixes one end of the bimetallic sheet to the first terminal, and the first material moving mechanism moves the riveted bimetallic terminal assembly to a spring assembly bending device; the first terminal feeding mechanism comprises a first vibrating disc, a first vibrating track, a first cylinder assembly and a first manipulator, the first vibrating disc moves the first terminal to the first vibrating track, the first cylinder assembly moves the first terminal at the end of the first vibrating track to a clamping position, and the first manipulator clamps the first terminal and moves it into a first installation groove of the first clamps. The terminal pressing mechanism comprises a sixth cylinder and a first pressing rod driven by the sixth cylinder, the first pressing rod presses the first terminal and the first clamps in place.

[0007] The bimetallic sheet feeding mechanism comprises a second vibrating disc, a second vibrating track, a second cylinder assembly, a third cylinder assembly and a first material suction assembly, the second vibrating disc moves the bimetallic sheet to the second vibrating track, the second cylinder assembly comprises a first rotating plate and a second cylinder for driving the first rotating plate to rotate, the first rotating plate is formed with a bimetallic material moving groove corresponding to the end of the second vibrating track, the first rotating plate moves the bimetallic sheet on the second vibrating track to a first material moving position, the third cylinder assembly moves the bimetallic sheet at the first material moving position to a suction position, and the first material suction assembly sucks the bimetallic sheet and moves it into a second installation groove of the first clamps.

[0008] The first material moving mechanism comprises a second mechanical arm, a third vibrating track, a fourth cylinder assembly and a fifth cylinder assembly. The second mechanical arm clamps the double-gold terminal assembly on the first clamp to the third vibrating track. The fourth cylinder assembly comprises a fourth cylinder and a fourth push plate driven by the fourth cylinder. The fourth push plate is shaped with a material moving groove matched with the double-gold terminal assembly. The fourth push plate moves the double-gold terminal assembly on the third vibrating track to a second material moving position. The fifth cylinder assembly comprises a fifth cylinder and a fifth push rod driven by the fifth cylinder. The fifth push rod moves the double-gold terminal assembly on the second material moving position to the second clamp of the elastic sheet assembly and bending device. The moving direction of the fifth push rod is perpendicular to the moving direction of the fourth push plate.

[0009] The elastic sheet assembly and bending device comprises a second rotating disc, an elastic sheet assembly mechanism, a double-gold bending mechanism and a terminal screw base assembly device distributed in sequence around the second rotating disc. The second rotating disc is rotatably installed on the first rack and has a plurality of second clamps distributed in intervals along the circumference thereof. The elastic sheet assembly mechanism inserts and fixes an elastic sheet with the other end of the double-metal sheet to form a first terminal assembly with the elastic sheet, the double-metal sheet and the first terminal. The double-gold bending mechanism bends the double-metal sheet by a certain angle. The terminal screw base assembly device assembles an adjusting screw with a base and then assembles the assembled first terminal assembly.

[0010] The elastic sheet assembly mechanism comprises an elastic sheet feeding mechanism and a double-gold pre-pressing mechanism. The elastic sheet feeding mechanism moves the elastic sheet to the second clamp. The double-gold pre-pressing mechanism is arranged above the second clamp and comprises a seventh cylinder and a seventh push rod driven by the seventh cylinder. The seventh push rod is arranged opposite to the end of the double-metal sheet away from the riveting position and has an initial position and a pre-pressing position. Before the elastic sheet is loaded into the second clamp, the seventh push rod is in the pre-pressing position and drives the block part of the double-metal sheet away from the riveting position to deform downward. After the elastic sheet is loaded into the second clamp, the seventh push rod moves to the initial position, the double-metal sheet restores the deformation, and the block part is inserted into the insertion hole of the elastic sheet.

[0011] The sheet feeding mechanism comprises a sheet material strip disc, a first material strip conveying assembly, a first sheet cutting mechanism and a second material strip moving mechanism. The sheet material strip disc is adapted to store and externally convey a sheet material strip. The sheet material strip comprises a first connecting sheet and a plurality of sheet pieces distributed along the length direction of the first connecting sheet. A plurality of first perforations are formed on the first connecting sheet and correspond to the plurality of sheet pieces. The first material strip conveying assembly comprises an eighth cylinder assembly and a first material strip driving claw. The eighth cylinder assembly comprises an eighth cylinder and an eighth push plate driven by the eighth cylinder. The first material strip driving claw is rotatably installed on the eighth push plate by a first spring and is provided with a first claw-shaped part matched with the first connecting sheet. When the first material strip driving claw moves in one direction along with the eighth push plate, the first claw-shaped part of the first material strip driving claw is inserted into the first perforation of the first connecting sheet under the elastic force of the first spring to drive the sheet material strip to move synchronously. When the first material strip driving claw moves in the opposite direction along with the eighth push plate, the first material strip driving claw moves relative to the sheet material strip. The first sheet cutting mechanism comprises a ninth cylinder assembly, a first lever, a first pressing block and a first cutter. One end of the first lever is provided with the first pressing block and the other end is driven by the ninth cylinder assembly. The first cutter is movably installed on the first frame by a second spring and is driven by the first pressing block to cut the first connecting sheet. The second material strip moving mechanism comprises a tenth cylinder assembly, an eleventh cylinder assembly, a twelfth cylinder assembly and a thirteenth cylinder assembly. The tenth cylinder assembly comprises a tenth cylinder and a tenth push rod. The tenth push rod moves the sheet pieces cut by the first sheet cutting mechanism to a third material moving position. The eleventh cylinder assembly comprises an eleventh rotary cylinder and a second rotary plate driven by the eleventh rotary cylinder. The twelfth push rod of the twelfth cylinder assembly moves the sheet pieces to a material moving groove of the second rotary plate under the drive of the twelfth cylinder. The second rotary plate moves the sheet pieces to a fourth material moving position. The thirteenth cylinder assembly comprises a thirteenth cylinder and a thirteenth push rod. The thirteenth push rod moves the sheet pieces at the fourth material moving position to the second clamp. The moving directions of the thirteenth push rod and the twelfth push rod are perpendicular to the moving direction of the tenth push rod.

[0012] The second clamp is provided with a first stopper above the bimetallic sheet. The bimetallic sheet bending mechanism comprises a fourteenth cylinder assembly and a fifteenth cylinder assembly. The fourteenth cylinder assembly comprises a fourteenth cylinder installed on a first support and a fourteenth push rod driven by the fourteenth cylinder. The fourteenth push rod is inserted into the second clamp in the horizontal direction and moves below the bimetallic sheet. The fifteenth cylinder assembly comprises a fifteenth cylinder and a fifteenth push rod. The fifteenth push rod is connected with the first support to drive the first support to move up and down.

[0013] The terminal screw base assembling device comprises a base feeding mechanism, a screwing mechanism, a turnover mechanism, a terminal base assembling mechanism arranged in sequence, and a third material moving mechanism for switching the base among the mechanisms; the base feeding mechanism comprises a third vibration disc, a third vibration track and a fifteenth cylinder assembly, the third vibration disc feeds the base to the third vibration track, and the fifteenth cylinder assembly feeds the base at the end of the third vibration track to the next station; the screwing mechanism assembles the adjusting screw with the base; the turnover mechanism comprises a sixteenth rotating cylinder and a turnover piece driven by the sixteenth rotating cylinder, the turnover piece turns the base by 180°; the terminal base assembling mechanism assembles the first terminal assembly with the base; The third material moving mechanism switches the base among the mechanisms, and comprises a first sliding rail, a plurality of first clamping plates, a first supporting plate, a seventeenth cylinder assembly, a second supporting plate and an eighteenth cylinder assembly, the first sliding rail is used for sliding of the base, the first clamping plates are distributed along the length direction of the first supporting plate, and the first clamping plates are shaped with clamping grooves matched with the base, the seventeenth cylinder assembly is arranged on the second supporting plate and used for driving the first supporting plate to move along the left-right direction of the first rack, and the eighteenth cylinder assembly is used for driving the second supporting plate to move along the front-back direction of the first rack.

[0014] The terminal base assembling mechanism comprises a sliding block push rod assembly and an eighteenth cylinder assembly, the sliding block push rod assembly is arranged on the second rotating disc and corresponds to the second clamp, the sliding block push rod assembly comprises a second sliding rail, a sliding block and a terminal push rod, the second sliding rail is arranged along the radial direction of the second rotating disc, the sliding block is slidingly installed on the second sliding rail, and the first terminal assembly is driven by the terminal push rod to be assembled into the base, the top of the sliding block is provided with a first protruding column and a second protruding column arranged oppositely; the eighteenth cylinder assembly comprises an eighteenth cylinder and an eighteenth push plate, the eighteenth push plate is provided with a driving block inserted between the first protruding column and the second protruding column, the driving block cooperates with the first protruding column and the second protruding column, and is used for driving the sliding block to move.

[0015] The terminal screw base assembling device further comprises a screw height detecting mechanism and an unqualified product discharging mechanism arranged between the screwing mechanism and the turnover mechanism; The screw height detecting mechanism comprises a nineteenth cylinder assembly, a detection rod assembly and a sensor, the nineteenth cylinder assembly comprises a nineteenth cylinder and a nineteenth push rod, the detection rod assembly comprises a detection block fixed with the nineteenth push rod and a detection rod movably installed on the detection block, the bottom of the detection rod can abut against the adjusting screw, and the sensor is arranged above the detection rod and used for detecting the distance between the top of the detection rod and the sensor. The unqualified product discharging mechanism comprises a twentieth cylinder assembly and an L-shaped lifting block, the L-shaped lifting block has a conveying position flush with the first sliding rail and an upwardly lifted waste discharging position.

[0016] The terminal assembling device comprises two fourth vibrating plates, two twenty-first cylinder assemblies, a twenty-second cylinder assembly and a fourth material moving mechanism, the two fourth vibrating plates move the second terminals to corresponding fourth vibrating tracks, the two fourth vibrating tracks are arranged in parallel; the two twenty-first cylinder assemblies each comprise a twenty-first cylinder and a twenty-first push rod, the twenty-first push rod is formed with a terminal material moving groove matched with the second terminal, and is used to move the second terminal to a waiting assembling position; the twenty-second cylinder assembly comprises a twenty-second cylinder and two twenty-second push rods driven by the twenty-second cylinder, and the two twenty-second push rods move the two second terminals into the base; and the fourth material moving mechanism switches the base between various stations.

[0017] The spring lamp button assembling device comprises a third turntable rotatably installed on a second rack and having a plurality of third clamps distributed along the circumference thereof in intervals; a third mechanical hand, a conductive spring assembling mechanism, a button spring assembling mechanism, a circuit board feeding mechanism, a lampshade feeding mechanism, a fourth material suction mechanical hand, a button assembling mechanism and a fifth mechanical hand are distributed in sequence at the periphery of the third turntable; the third mechanical hand moves the base assembled by the terminal assembling device to the third clamps; the conductive spring assembling mechanism installs two conductive springs on the base; the button spring assembling mechanism installs the button spring on the base; the circuit board feeding mechanism and the lampshade feeding mechanism respectively place a circuit board and a lampshade on the third clamps, and the circuit board and the lampshade form a lamp assembly; the fourth material suction mechanical hand installs the lamp assembly on the base; the button assembling mechanism assembles the button with the base; and the fifth mechanical hand moves the assembled base from the third turntable to a next station.

[0018] The conductive spring assembly mechanism comprises a fifth vibrating disc, a second support, and a third support. The fifth vibrating disc sends two conductive springs outward through two first connecting pipes. The second support is provided with a twenty-third cylinder assembly and a third sliding rail. The twenty-third cylinder assembly comprises a twenty-third cylinder and a twenty-third push rod. The twenty-third push rod is slidingly installed on the third sliding rail and is formed with two first accommodating holes for accommodating the conductive springs. The third sliding rail is formed with a first material guiding hole. The twenty-third push rod has a material falling position and a material moving position. When the twenty-third push rod is in the material falling position, the first accommodating holes are correspondingly arranged at the bottom outlet holes of the first connecting pipes. When the twenty-third push rod is in the material moving position, the first accommodating holes are correspondingly arranged at the first material guiding hole. The third support is provided with a second material guiding block, a twenty-fourth cylinder assembly, a third material guiding block, and a twenty-fifth cylinder assembly. The second material guiding block is connected with the first material guiding hole through a second connecting pipe and is formed with a second material guiding hole. The twenty-fourth cylinder assembly comprises a twenty-fourth cylinder and a twenty-fourth push rod. The twenty-fourth push rod is formed with a second accommodating hole. The third material guiding block is located above the third clamp and is formed with a third material guiding hole corresponding to the base. The twenty-fourth push rod has a material falling position and a material moving position. When the twenty-fourth push rod is in the material falling position, the second accommodating hole is correspondingly arranged at the second material guiding hole. When the twenty-fourth push rod is in the material moving position, the second accommodating hole is correspondingly arranged at the third material guiding hole. The twenty-fifth cylinder assembly comprises a twenty-fifth cylinder and a twenty-fifth push rod. The twenty-fifth push rod is arranged above the third material guiding block and is used for pressing the conductive spring in the third material guiding hole into the base.

[0019] The button spring assembly mechanism comprises a sixth vibrating disc, a twenty-sixth cylinder assembly, a fourth sliding rail, and a twenty-seventh cylinder assembly. The sixth vibrating disc sends a button spring outward through a third connecting pipe. The fourth support is provided with the twenty-sixth cylinder assembly, the fourth sliding rail, and the twenty-seventh cylinder assembly. The twenty-sixth cylinder assembly comprises a twenty-sixth cylinder and a twenty-sixth push rod. The twenty-sixth push rod is slidingly installed on the fourth sliding rail and is formed with a third accommodating hole for accommodating the button spring. The fourth sliding rail is formed with a fourth material guiding hole. The twenty-sixth push rod has a material falling position and a material moving position. When the twenty-sixth push rod is in the material falling position, the third accommodating hole is correspondingly arranged at the bottom outlet hole of the third connecting pipe. When the twenty-sixth push rod is in the material moving position, the third accommodating hole is correspondingly arranged at the fourth material guiding hole. The twenty-seventh cylinder assembly comprises a twenty-seventh cylinder and a twenty-seventh push rod. The twenty-seventh push rod presses the button spring in the fourth material guiding hole into the base.

[0020] The circuit board feeding mechanism comprises a seventh vibrating disc, a seventh vibrating track and a sixth suction manipulator, the seventh vibrating disc moves the circuit board towards the seventh vibrating track, and the sixth suction manipulator sucks the circuit board and places it on the third clamp; the lampshade feeding mechanism comprises an eighth vibrating disc, an eighth vibrating track and a seventh suction manipulator, the eighth vibrating disc moves the lampshade towards the eighth vibrating track, and the seventh suction manipulator sucks the lampshade and places it on the circuit board of the third clamp. The button assembling mechanism comprises a ninth vibrating disc, a ninth vibrating track, a twenty-eighth cylinder assembly and an eighth manipulator, the ninth vibrating disc moves the button towards the ninth vibrating track, the twenty-eighth cylinder assembly comprises a twenty-eighth rotary cylinder and a third rotating plate, the third rotating plate moves the button on the ninth vibrating track to a clamping position, and the eighth manipulator assembles the button and the base.

[0021] The pull-tab assembling device comprises a pull-tab material strip disc, a second material strip conveying assembly, a second cutting mechanism and a fifth material moving mechanism, the pull-tab material strip disc is adapted to store and outwardly convey a pull-tab material strip, the pull-tab material strip comprises a second connecting piece and a plurality of pull tabs which are spaced apart along the length direction of the second connecting piece, the second material strip conveying assembly moves the pull-tab material strip to a cutting position, the second cutting mechanism cuts the connecting part between the pull tab and the second connecting piece, and the fifth material moving mechanism moves and assembles the pull tab into the base.

[0022] The second connecting piece is formed with a second perforation corresponding to the plurality of pull tabs, the second material strip conveying assembly comprises a twenty-ninth cylinder assembly and a second material strip driving claw, the twenty-ninth cylinder assembly comprises a twenty-ninth cylinder and a twenty-ninth push plate driven by the twenty-ninth cylinder, and the second material strip driving claw is rotatably installed on the twenty-ninth push plate through a third spring and is provided with a second claw-shaped part matched with the second connecting piece, wherein when the second material strip driving claw moves in one direction along with the twenty-ninth push plate, the second claw-shaped part of the second material strip driving claw extends into the second perforation of the second connecting piece under the elastic force of the third spring to drive the pull-tab material strip to move synchronously, and when the second material strip driving claw moves in the opposite direction along with the twenty-ninth push plate, the second material strip driving claw moves relative to the pull-tab material strip.

[0023] The second cutting mechanism comprises a thirtieth cylinder assembly, a second lever, a second pressing block and a second cutter, one end of the second lever is provided with the second pressing block, the other end is driven by the thirtieth cylinder assembly, the second cutter is movably installed on a fifth support through a fourth spring and cuts the second connecting piece under the driving of the second pressing block.

[0024] The fifth material moving mechanism comprises a pull tab positioning mechanism, a thirty-first cylinder assembly, a material moving rod, a thirty-second cylinder assembly and a material moving cylinder assembly. The pull tab positioning mechanism comprises a second stop block, a third pressing block and a fifth spring. The third pressing block is oppositely arranged with the second stop block. The third pressing block is pressed against the second stop block under the elastic force of the fifth spring. The thirty-first cylinder assembly is arranged below the pull tab and comprises a thirty-first cylinder and a thirty-first push rod. The thirty-first push rod pushes the completed pull tab into the material moving rod. The material moving rod and the thirty-second cylinder assembly are arranged on the sixth support and above the pull tab. The material moving rod is formed with a clamping hole for clamping the pull tab. The thirty-second cylinder assembly comprises a thirty-second cylinder and a thirty-second push rod. The thirty-second push rod extends into the clamping hole and presses the pull tab into the base. The material moving cylinder assembly is connected with the sixth support and moves the pull tab from the slicing position to the assembling position.

[0025] The cover plate assembling device comprises a cover plate feeding mechanism, a cover plate pressing mechanism and a sixth material moving mechanism. The cover plate feeding mechanism moves the cover plate to the base and comprises a tenth vibration disc, a tenth vibration track and a ninth mechanical hand. The tenth vibration disc feeds the cover plate to the tenth vibration track. The ninth mechanical hand clamps and moves the cover plate from the tenth vibration track to the base. The cover plate pressing mechanism presses the cover plate and the base and comprises a thirty-third cylinder and a thirty-third push rod. The thirty-third push rod tightly connects the cover plate and the base. The sixth material moving mechanism switches the base between various stations and comprises a sixth sliding rail, a plurality of third clamping plates, a third support plate, a thirty-fourth cylinder assembly, a fourth support plate and a thirty-fifth cylinder assembly. The sixth sliding rail is used for sliding of the base. The third clamping plates are distributed along the length direction of the third support plate and are formed with clamping grooves matched with the base. The thirty-fourth cylinder assembly is arranged on the fourth support plate and is used for driving the third support plate to move along the left-right direction of the third rack. The thirty-fifth cylinder assembly is used for driving the fourth support plate to move along the front-back direction of the third rack.

[0026] The application further provides an assembling process of the ship type overload protection switch, which comprises the following steps: S1, riveting and fixing one end of the bimetallic sheet to the first terminal; S2, inserting and fixing the other end of the bimetallic sheet to the spring sheet, so that the spring sheet, the bimetallic sheet and the first terminal form a first terminal assembly; S3, bending the bimetallic sheet by a certain angle and assembling the first terminal assembly with the base; S4, assembling two second terminals with the base; S5, assemble two conductive springs and one button spring with the base; S6, Assemble the light assembly and button onto the base in sequence; S7. Assemble the lifting plate and cover plate with the base in sequence.

[0027] It also includes assembling the adjusting screw with the base before assembling the first terminal assembly with the base.

[0028] The technical solution of this invention has the following advantages: 1. The automatic assembly line provided by this invention integrates double metal riveting, spring sheet bending assembly, terminal assembly, spring light button assembly, lifting sheet assembly, and cover plate assembly into a production line according to a reasonable process sequence. The cover plate, as a carrier, flows through each workstation in sequence, automatically completing the assembly of all components. Compared with the prior art, this greatly improves production efficiency and reduces production costs.

[0029] 2. The automatic assembly line provided by the present invention includes a bimetallic terminal riveting device comprising a first turntable, a first terminal feeding mechanism, a terminal clamping mechanism, a bimetallic sheet feeding mechanism, a riveting mechanism, and a first material transfer mechanism. Before riveting, the first terminal is clamped onto the fixture to prevent it from shifting or bouncing during subsequent feeding or riveting, thus ensuring the accuracy of the riveting position.

[0030] 3. The automated assembly line provided by this invention includes a spring assembly mechanism comprising a spring feeding mechanism and a bimetallic pre-pressing mechanism. Utilizing the elastic deformation characteristics of the bimetallic strip, the pre-pressing mechanism temporarily deforms it to create space for the spring insertion. Then, the pressure is released to allow it to spring back, and the insert portion of the bimetallic strip automatically inserts into the spring's insertion hole. This design avoids complex mechanical forced engagement, featuring an ingenious structure and smooth operation, effectively protecting parts from damage and improving the success rate and consistency of insertion.

[0031] 4. The automatic assembly line provided by the present invention includes a spring sheet feeding mechanism comprising a spring sheet material tray, a first material tray conveying assembly, and a first slicing mechanism. A first material tray driving claw is rotatably mounted on an eighth push plate via a first spring. The first claw-shaped portion of the first material tray is provided to cooperate with a first connecting piece. When the first material tray driving claw moves in one direction with the eighth push plate, under the elastic force of the first spring, the first claw-shaped portion of the first material tray driving claw extends into the first through hole of the first connecting piece, driving the spring sheet material tray to move synchronously. When the first material tray driving claw moves in the opposite direction with the eighth push plate, the first material tray driving claw moves relative to the spring sheet material tray. The design of the first material tray driving claw and the first slicing mechanism realizes the intermittent and precise feeding of the material tray and the precise cutting and separation of individual spring sheets.

[0032] 5. The automatic assembly line provided by the present application, the second turntable is provided with a plurality of slider push rod assemblies corresponding to the second clamps, the slider push rod assembly comprises a second sliding rail, a slider and a terminal push rod, the second sliding rail is arranged along the radial direction of the second turntable, the slider is slidingly installed on the second sliding rail, and a first protruding column and a second protruding column are arranged on the top of the slider, when the second turntable drives the second clamp to rotate to the corresponding assembly position, the driving block of the eighteenth cylinder assembly is inserted between the first protruding column and the second protruding column, so that the slider is driven to move, and the first terminal assembly is smoothly pushed into the base, and the automatic assembly line has the advantages of simple structure.

[0033] 6. The automatic assembly line provided by the present application, two fourth vibration tracks are arranged in parallel to convey corresponding second terminals, and then the two terminals are moved to the assembly position by the twenty-first cylinder assembly, the two push rods driven by the twenty-second cylinder assembly can simultaneously press the two second terminals into the base, so that the production efficiency is improved, and the relative position accuracy of the two terminals in the base is ensured.

[0034] 7. The automatic assembly line provided by the present application, the conductive spring sequentially passes through a fifth vibration disc, a first connecting pipe, a first containing hole of a twenty-third push rod, a first material guide hole, a second connecting pipe, a second material guide block, a second containing hole of a twenty-fourth push rod, a third material guide hole of a third material guide block, and then the conductive spring is pressed into the base by the twenty-fifth cylinder assembly, so that the conductive spring which is small and difficult to handle is accurately and reliably conveyed from the vibration disc to the final assembly position.

[0035] 8. The automatic assembly line provided by the present application, the pull-tab positioning mechanism can immediately fix the cut pull-tab under the action of the fifth spring through the cooperation of the second stop block and the third pressing block, so that the subsequent push-in is prepared, and when the material moving rod is moved above the base, the pull-tab is pressed into the base by the third twenty-second push rod extending into the clamping hole of the material moving rod. BRIEF DESCRIPTION OF DRAWINGS

[0036] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or prior art description. Obviously, the drawings described below are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0037] Figure 1 It is a structural schematic view of the automatic assembly line of the present application. Figure 2 It is a structural schematic view of the automatic assembly line (terminal assembly part). Figure 3 It is a perspective view of the double-gold terminal riveting device. Figure 4 is a perspective view of the first terminal feeding mechanism and the first turntable; Figure 5 is a partial enlarged structural schematic view of Figure 4 ; Figure 6 is a partial perspective view of the terminal pressing mechanism; Figure 7 is a perspective view of the bimetallic strip feeding mechanism; Figure 8 is a first partial enlarged structural schematic view of the bimetallic strip feeding mechanism; Figure 9 is a second partial enlarged structural schematic view of the bimetallic strip feeding mechanism; Figure 10 is a perspective view of the first turntable, the first material moving mechanism and the second turntable; Figure 11 is a partial enlarged structural schematic view of Figure 10 ; Figure 12 is a perspective view of the spring assembling and bending device; Figure 13 is a perspective view of the spring assembling mechanism and the second turntable; Figure 14 is a schematic view of the assembly of the bimetallic strip and the spring in the second clamp; Figure 15 is a first perspective view of the spring assembling mechanism; Figure 16 is a second perspective view of the spring assembling mechanism; Figure 17 is a partial sectional view of the first material tape conveying assembly; Figure 18 is a schematic view of the cooperation between the first material tape driving claw and the spring material tape; Figure 19 is a partial perspective view of the spring feeding mechanism; Figure 20 is a perspective view of the bimetallic strip bending mechanism and the second turntable; Figure 21 is a partial enlarged structural schematic view of Figure 20 ; Figure 22 is a perspective view of the terminal base assembling mechanism and the second turntable; Figure 23 is a partial enlarged structural schematic view of Figure 22 ; Figure 24 is a perspective view of the terminal screw base assembling device; Figure 25 is a partial enlarged structural schematic view of Figure 24 ; Figure 26 is a perspective view of an automatic assembly line (terminal spring lamp assembly part); Figure 27 is a perspective view of a terminal assembly device; Figure 28 is a partial enlarged structural schematic view of Figure 27 ; Figure 29 is a partial enlarged top view of Figure 27 ; Figure 30 is a structural schematic view of a spring lamp button assembly device; Figure 31 is a perspective view of a conductive spring assembly mechanism; Figure 32 is a first partial enlarged structural schematic view of Figure 31 ; Figure 33 is a second partial enlarged structural schematic view of Figure 31 ; Figure 34 is a perspective view of a twenty-fourth push rod and a third material guide block; Figure 35 is a perspective view of a button spring assembly mechanism; Figure 36 is a perspective view of a circuit board feeding mechanism; Figure 37 is a perspective view of a lampshade feeding mechanism; Figure 38 is a perspective view of a third clamp; Figure 39 is a perspective view of a button assembly mechanism; Figure 40 is a perspective view of an automatic assembly line (pull-tab cover plate assembly part); Figure 41 is a perspective view of a pull-tab assembly device (after removing the material belt disc); Figure 42 is a side view of Figure 41 ; Figure 43 is a partial enlarged structural schematic view of Figure 41 ; Figure 44 is a perspective view of a material moving rod and a thirty-second cylinder assembly; Figure 45 is a partial sectional view of a second material belt conveying assembly; Figure 46 is a perspective view of a pull-tab material belt; Figure 47 is a perspective view of a cover plate assembly device; Figure 48Figure 6 is a perspective view of the sixth material moving mechanism; Figure 49 Figure 7 is a schematic view of the structure of a boat-shaped overload protection switch; Figure 50 Figure 8 is an exploded schematic view of the boat-shaped overload protection switch; Figure 51 Figure 9 is a perspective view of the sheet, bimetallic sheet and first terminal.

[0038] Reference signs: 1, base; 2, cover plate; 3, bimetallic sheet; 4, first terminal; 5, bimetallic terminal assembly; 6, sheet; 7, first terminal assembly; 8, adjusting screw; 9, plug block part; 10, insertion hole; 11, lamp assembly; 12, second terminal; 13, button spring; 14, button; 15, conductive spring; 16, circuit board; 17, lamp shade; 18, SMD LED lamp; 19, pin part; 20, pull tab; 31, double gold terminal riveting device; 32, spring piece assembly bending device; 33, first rotary table; 34, first rack; 35, first clamp; 36, first terminal feeding mechanism; 37, double metal piece feeding mechanism; 38, riveting mechanism; 39, first material moving mechanism; 40, first vibration disc; 41, first vibration track; 42, first cylinder assembly; 43, first manipulator; 44, second vibration disc; 45, second vibration track; 46, second cylinder assembly; 47, third cylinder assembly; 48, first material suction assembly; 49, first rotary plate; 50, second cylinder; 51, double gold material moving groove; 52, second manipulator; 53, third vibration track; 54, fourth cylinder assembly; 55, fifth cylinder assembly; 56, fourth cylinder; 57, fourth push plate; 58, fifth cylinder; 59, fifth push rod; 60, second clamp; 61, terminal pressing mechanism; 62, sixth cylinder; 63, first pressing rod; 64, second rotary table; 65, spring piece assembly mechanism; 66, double gold bending mechanism; 67, terminal screw base assembly device; 68, spring piece feeding mechanism; 69, double gold pre-pressing mechanism; 70, seventh push rod; 71, spring piece material tape disc; 72, spring piece material tape; 73, first connecting piece; 74, first perforation; 75, first material tape conveying assembly; 76, eighth cylinder assembly; 77, first material tape driving claw; 78, eighth cylinder; 79, eighth push plate; 80, first spring; 81, first claw-shaped part; 82, first slicing mechanism; 83, ninth cylinder assembly; 84, first lever; 85, first pressing block; 86, first cutting knife; 87, second material moving mechanism; 88, tenth cylinder assembly; 89, eleventh cylinder assembly; 90, twelfth cylinder assembly; 91, thirteenth cylinder assembly; 92, tenth cylinder; 93, tenth push rod; 95, second rotary plate; 96, twelfth cylinder; 97, twelfth push rod; 98, thirteenth cylinder; 99, thirteenth push rod; 100, first stop block; 101, fourteenth cylinder assembly; 102, first support; 103, fourteenth cylinder; 104, fourteenth push rod; 105, fifteenth cylinder assembly; 106, fifteenth cylinder; 107, fifteenth push rod; 108, base feeding mechanism; 109, screw driving mechanism; 110, overturning mechanism; 111, terminal base assembly mechanism; 112, third material moving mechanism; 113, third vibration disc; 114, eleventh vibration track; 115, fifteenth cylinder assembly; 116, first sliding rail; 117, first clamping plate; 118, first support plate; 119, seventeenth cylinder assembly; 120, second support plate; 121, eighteenth cylinder assembly; 122, sliding block push rod assembly; 123, second sliding rail; 124, sliding block; 125, terminal push rod; 126, first protruding column; 127, second protruding column; 128, eighteenth cylinder assembly; 129, eighteenth cylinder; 130, eighteenth push plate; 131, driving block; 132, screw height detection mechanism; 133, unqualified product discharging mechanism; 134, nineteenth cylinder assembly;135. Detector rod assembly; 136. Sensor; 137. Nineteenth cylinder; 138. Nineteenth push rod; 139. Detector block; 140. Detector rod; 141. Twentieth cylinder assembly; 142. L-shaped lifting block; 143. Sixteenth rotary cylinder; 144. Tilting component; 200. Terminal assembly device; 201. Spring-loaded light button assembly device; 202. Fourth vibratory feeder; 203. Fourth vibratory track; 204. Twenty-first cylinder assembly; 205. Twenty-first cylinder; 206. Twenty-first push rod; 207. Terminal transfer slot; 208. Twenty-second cylinder assembly; 209. Twenty-second cylinder; 210. Twenty-second push rod; 211. Fourth transfer mechanism; 212. Second frame; 213. Third turntable; 214. Third clamp; 215. Third robotic arm; 216. Conductive spring assembly mechanism; 217. Button 218. Spring assembly mechanism; 219. Circuit board feeding mechanism; 220. Lampshade feeding mechanism; 221. Fourth suction robot; 222. Button assembly mechanism; 223. Fifth robot; 224. Fifth vibratory feeder; 225. First connecting pipe; 226. Second bracket; 227. Twenty-third cylinder assembly; 228. Third slide rail; 229. Twenty-third cylinder; 231. Twenty-third push rod; 232. First receiving hole; 233. First guide hole; 234. Third bracket; 235. Second guide block; 236. Twenty-fourth cylinder assembly; 237. Third... 237. Guide block; 238. Twenty-fifth cylinder assembly; 239. Second guide hole; 240. Twenty-fourth cylinder; 241. Twenty-fourth push rod; 242. Fourth bracket; 243. Second receiving hole; 244. Third guide hole; 245. Twenty-fifth cylinder; 246. Twenty-fifth push rod; 247. Sixth vibratory feeder; 248. Third connecting pipe; 249. Twenty-sixth cylinder assembly; 250. Fourth slide rail; 251. Twenty-sixth cylinder; 252. Twenty-sixth push rod; 253. Third receiving hole; 254. Second 17th cylinder; 255. 27th push rod; 256. 7th vibratory plate; 257. 7th vibratory track; 258. 6th suction robot; 259. 8th vibratory plate; 260. 8th vibratory track; 261. 7th suction robot; 262. 9th vibratory plate; 263. 9th vibratory track; 264. 28th cylinder assembly; 265. 8th robot; 266. 28th rotary cylinder; 267. 3rd rotating plate; 268. 2nd clamping plate; 269. 36th cylinder assembly; 270. 37th cylinder assembly; 271. 5th slide rail; 300, pull piece assembly device; 301, pull piece material tape disc; 302, second material tape conveying assembly; 303, second slicing mechanism; 304, fifth material moving mechanism; 305, pull piece material tape; 306, second connecting piece; 307, cover plate assembly device; 308, second perforation; 309, twenty-ninth cylinder assembly; 310, second material tape driving claw; 311, twenty-ninth cylinder; 312, twenty-ninth push plate; 313, third spring; 314, second claw-shaped part; 315, thirtieth cylinder assembly; 316, second lever; 317, second pressing block; 318, second cutter; 319, pull piece positioning mechanism; 320, second stop block; 321, third pressing block; 322, thirty-first cylinder assembly; 323, thirty-first cylinder; 324, thirty-first push rod; 325, material moving rod; 326, thirty-second cylinder assembly; 327, sixth support; 328, thirty-second push rod; 329, material moving cylinder assembly; 330, 331, cover plate feeding mechanism; 332, cover plate pressing mechanism; 333, sixth material moving mechanism; 334, tenth vibration disc; 335, tenth vibration track; 336, ninth mechanical hand; 337, thirty-third cylinder; 338, thirty-third push rod; 339, sixth slide rail; 340, third clamping plate; 341, third support plate; 342, thirty-fourth cylinder assembly; 343, fourth support plate; 344, thirty-fifth cylinder assembly; 345, thirty-fifth cylinder assembly; 347, third rack; 348, thirty-second cylinder. DETAILED DESCRIPTION

[0039] The technical solutions of the present application will be described clearly and completely below in combination with the drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0040] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0041] In the description of the present application, it is necessary to point out that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integrally connected; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0042] In addition, the technical features involved in the different embodiments of the application described below can be combined with each other as long as there is no conflict between them.

[0043] Embodiment The present embodiment provides an automatic assembly line of a boat-shaped overload protection switch, which is suitable for assembling a boat-shaped overload protection switch, such as Figure 49 and 50 The boat-shaped overload protection switch comprises a base 1, a cover plate 2, a bimetallic strip 3, a first terminal 4, a spring 6, an adjusting screw 8, a second terminal 12, a button spring 13, a button 14, a conductive spring 15, a circuit board 16, a lampshade 17, and a pull-tab 20. The lamp assembly 11 comprises the circuit board 16 and the lampshade 17. The circuit board 16 is provided with a patch LED lamp 18 and two contact portions. The two second terminals 12 are provided with pin portions 19 corresponding to the two contact portions. The two conductive springs 15 are respectively installed between the two contact portions and the corresponding pin portions 19, so as to electrically connect the contact portions and the corresponding pin portions 19. As shown in Figure 51 The spring 6 is provided with a insertion hole 10, and the end of the bimetallic strip 3 is provided with an insertion block portion 9 which is adapted to be inserted into the insertion hole 10. As shown in Figure 1 The automatic assembly line comprises a bimetallic terminal riveting device 31, a spring assembly bending device 32, a terminal assembly device 200, a spring lamp button assembly device 201, a pull-tab assembly device 300, and a cover plate assembly device 307.

[0044] The bimetallic terminal riveting device 31 rivets and fixes one end of the bimetallic strip 3 and the first terminal 4 to form a bimetallic terminal assembly 5, and delivers it to the spring assembly bending device 32. As shown in Figure 1 、 Figure 2 and Figure 3 The bimetallic terminal riveting device 31 rivets and fixes one end of the bimetallic strip 3 and the first terminal 4 to form a bimetallic terminal assembly 5, and delivers it to the spring assembly bending device 32. As shown in

[0045] The first rotating disc 33 is rotatably installed on the first machine frame 34, and has a plurality of first clamps 35 which are spaced apart along the circumference thereof.

[0046] The first terminal feeding mechanism 36 feeds the first terminal 4 to the first clamp 35, as shown in Figure 3 and Figure 4 The first terminal feeding mechanism 36 feeds the first terminal 4 to the first clamp 35, as shown in

[0047] The terminal pressing mechanism 61 is arranged between the first terminal feeding mechanism 36 and the bimetallic strip feeding mechanism 37, as shown in Figure 6 The terminal pressing mechanism 61 is arranged between the first terminal feeding mechanism 36 and the bimetallic strip feeding mechanism 37, as shown in

[0048] The bimetallic strip feeding mechanism 37 feeds the bimetallic strip 3 to the first clamp 35, and one end of the bimetallic strip 3 abuts against the first terminal 4, as shown in Figure 7 , Figure 8 and Figure 9 The bimetallic strip feeding mechanism 37 feeds the bimetallic strip 3 to the first clamp 35, and one end of the bimetallic strip 3 abuts against the first terminal 4, as shown in Figure 8 and Figure 9 The bimetallic strip feeding mechanism 37 feeds the bimetallic strip 3 to the first clamp 35, and one end of the bimetallic strip 3 abuts against the first terminal 4, as shown in

[0049] The riveting mechanism 38 rivets and fixes one end of the bimetallic strip 3 to the first terminal 4. It should be noted that the riveting mechanism 38 is a mature technology, and therefore its specific structure and working principle will not be described in detail.

[0050] The first material feeding mechanism 39 feeds the riveted bimetallic terminal assembly 5 to the spring assembly bending device 32, as shown in Figure 10 ​As shown, it includes a second robotic arm 52, a third vibration track 53, a fourth cylinder assembly 54, and a fifth cylinder assembly 55. The second robotic arm 52 grips the bimetallic terminal assembly 5 on the first clamp 35 onto the third vibration track 53, as shown. Figure 10 and Figure 11 As shown, the fourth cylinder assembly 54 includes a fourth cylinder 56 and a fourth push plate 57 driven by the fourth cylinder 56. The fourth push plate 57 is formed with a transfer groove adapted to the bimetallic terminal assembly 5. The fourth push plate 57 moves forward under the drive of the fourth cylinder 56 to transfer the bimetallic terminal assembly 5 on the third vibration track 53 to the second transfer position. The fifth cylinder assembly 55 includes a fifth cylinder 58 and a fifth push rod 59 driven by the fifth cylinder 58. The fifth push rod 59 moves to the right under the drive of the fifth cylinder 58 to transfer the bimetallic terminal assembly 5 at the second transfer position into the second clamp 60 of the transfer to the spring assembly bending device 32. The moving direction of the fifth push rod 59 is perpendicular to the moving direction of the fourth push plate 57.

[0051] The spring-loaded bending device 32 inserts and fixes the other end of the bimetallic strip 3 to the spring 6, so that the spring 6, the bimetallic strip 3, and the first terminal 4 form a first terminal assembly 7. After bending the bimetallic strip 3 at a certain angle, the first terminal assembly 7 is assembled with the base 1. Figure 2 and Figure 12 As shown, the spring sheet assembly and bending device 32 includes a second turntable 64, and spring sheet assembly mechanism 65, double metal bending mechanism 66 and terminal screw base assembly device 67 sequentially distributed around the second turntable 64.

[0052] The second turntable 64 is rotatably mounted on the first frame 34, such as Figure 13 As shown, it has a plurality of second clamps 60 distributed at intervals along its circumference, and a slider push rod assembly 122 disposed corresponding to the second clamps 60.

[0053] The spring assembly mechanism 65 inserts and fixes the spring 6 to the other end of the bimetallic strip 3, such as... Figure 12 As shown, it includes a spring feeding mechanism 68 and a double metal pre-compression mechanism 69.

[0054] Spring feeding mechanism 68, such as Figure 2 and Figure 15 As shown, it includes a spring strip reel 71, a first strip conveying assembly 75, a first slicing mechanism 82, and a second transfer mechanism 87. The spring strip reel 71 is adapted to store and convey spring strips 72 outwards, such as... Figure 18As shown, the elastic sheet strip 72 comprises a first connecting sheet 73, and a plurality of elastic sheets 6 distributed along the length of the first connecting sheet 73, and a first perforation 74 corresponding to the plurality of elastic sheets 6 is formed on the first connecting sheet 73; as Figure 15 and Figure 16 As shown, the first strip conveying assembly 75 comprises an eighth cylinder assembly 76 and a first strip driving claw 77, the eighth cylinder assembly 76 comprises an eighth cylinder 78 and an eighth push plate 79 driven by the eighth cylinder 78, as Figure 17 and Figure 18 As shown, the first strip driving claw 77 is rotatably installed on the eighth push plate 79 by a first spring 80, and is provided with a first claw-shaped part 81 matched with the first connecting sheet 73, and the first strip driving claw 77 has a vertical driving surface and an inclined surface respectively arranged on two sides thereof, wherein, as Figure 17 and Figure 18 As shown, when the eighth push plate 79 moves to the right side, the first claw-shaped part 81 of the first strip driving claw 77 extends into the first perforation 74 of the first connecting sheet 73 under the elastic force of the first spring 80, the vertical driving surface abuts against the inner wall of the first perforation 74, and the elastic sheet strip 72 is driven to move synchronously; when the eighth push plate 79 moves to the left side, the inclined surface of the first strip driving claw 77 is in sliding contact with the first connecting sheet 73, and moves relative to the elastic sheet strip 72.

[0055] As shown, Figure 14 and Figure 15 The first slicing mechanism 82 comprises a ninth cylinder assembly 83, a first lever 84, a first pressing block 85 and a first cutter 86, one end of the first lever 84 is provided with the first pressing block 85, the other end is driven by the ninth cylinder assembly 83, the first cutter 86 is movably installed on the first rack 34 by a second spring, and cuts off the first connecting sheet 73 under the driving of the first pressing block 85; as Figure 15 and Figure 16 As shown, the second strip conveying assembly 87 comprises a tenth cylinder assembly 88, an eleventh cylinder assembly 89, a twelfth cylinder assembly 90 and a thirteenth cylinder assembly 91, as Figure 18 As shown, the tenth cylinder assembly 88 comprises a tenth cylinder 92 and a tenth push rod 93, the eleventh cylinder assembly 89 comprises an eleventh rotary cylinder (not shown in the figure) and a second rotating plate 95 driven by the eleventh rotary cylinder, the thirteenth cylinder assembly 91 comprises a thirteenth cylinder 98 and a thirteenth push rod 99, as Figure 19As shown, the tenth push rod 93 first moves the sliced ​​spring piece 6 horizontally to the right to the third transfer position. Then, the twelfth push rod 97 of the twelfth cylinder assembly 90, driven by the twelfth cylinder 96, moves the spring piece 6 into the transfer groove of the second rotating plate 95. The second rotating plate 95 moves the spring piece 6 to the fourth transfer position. The thirteenth push rod 99 moves the spring piece 6 at the fourth transfer position into the second clamp 60. The moving directions of the thirteenth push rod 99 and the twelfth push rod 97 are both perpendicular to the moving direction of the tenth push rod 93.

[0056] The double-metal pre-compression mechanism 69 is positioned above the second clamp 60, as follows: Figure 13 As shown, it includes a seventh cylinder (not shown in the figure) and a seventh push rod 70 driven by the seventh cylinder. The seventh push rod 70 is positioned opposite the end of the bimetallic strip 3 away from its riveting point. It has an initial position and a pre-compression position. Before the spring 6 is inserted into the second clamp 60, the seventh push rod 70 is in the pre-compression position. The seventh push rod 70 drives the insert portion 9 of the bimetallic strip 3 away from the riveting point to deform downwards. After the spring 6 is inserted into the second clamp 60, the seventh push rod 70 moves to the initial position, the bimetallic strip 3 returns to its original deformation, and the insert portion 9 slides upwards along the surface of the spring 6 and automatically inserts into the insertion hole 10 of the spring 6 (e.g., ...). Figure 14 (As shown).

[0057] The bimetallic bending mechanism 66 bends the bimetallic sheet 3 at a certain angle, such as... Figure 20 and 21 As shown, the second clamp 60 has a first stop 100 located above the bimetallic sheet 3. The bimetallic bending mechanism 66 includes: a fourteenth cylinder assembly 101, including a fourteenth cylinder 103 mounted on the first bracket 102, and a fourteenth push rod 104 driven by the fourteenth cylinder 103. The fourteenth push rod 104 is inserted into the second clamp 60 in a horizontal direction and moves to below the bimetallic sheet 3; and a fifteenth cylinder assembly 105, including a fifteenth cylinder 106 and a fifteenth push rod 107. The fifteenth push rod 107 is connected to the first bracket 102 and is used to drive the first bracket 102 to move up and down.

[0058] The terminal screw base assembly device 67 assembles the adjusting screw 8 with the base 1, and then assembles it with the assembled first terminal assembly 7. For example... Figure 24As shown, the terminal screw base assembling device 67 comprises, in sequence, a base feeding mechanism 108, a screwing mechanism 109, a screw height detecting mechanism 132, an unqualified product discharging mechanism 133, a turnover mechanism 110, a terminal base assembling mechanism 111, and a third material moving mechanism 112 for driving the base 1 to switch between the mechanisms.

[0059] The base feeding mechanism 108, as shown in Figure 24 comprises a third vibration disc 113, an eleventh vibration track 114, and a fifteenth cylinder assembly 115. The third vibration disc 113 feeds the base 1 to the eleventh vibration track 114, and the fifteenth cylinder assembly 115 feeds the base 1 at the end of the eleventh vibration track 114 to the next station.

[0060] The screwing mechanism 109 assembles the adjusting screw 8 with the base 1. It is to be noted that the screwing mechanism is a mature technology, and thus its specific structure and working principle are not described in detail.

[0061] The screw height detecting mechanism 132, as shown in Figure 25 comprises a nineteenth cylinder assembly 134, a probe rod assembly 135, and a sensor 136. The nineteenth cylinder assembly 134 comprises a nineteenth cylinder 137 and a nineteenth push rod 138. The probe rod assembly 135 comprises a probe block 139 fixed with the nineteenth push rod 138, and a probe rod 140 movably installed on the probe block 139 by a spring. The bottom of the probe rod 140 can abut against the adjusting screw 8. The sensor 136 is arranged above the probe rod 140 to detect the distance between the top of the probe rod 140 and the sensor 136. It is to be noted that the probe rod and the sensor 136 are mature technologies, and thus their specific structure and working principle are not described in detail.

[0062] The unqualified product discharging mechanism 133, as shown in Figure 25 comprises a twentieth cylinder assembly 141 and an L-shaped lifting block 142. The L-shaped lifting block 142 has a conveying position flush with the second sliding track 123, and a discharging position lifted upward.

[0063] The turnover mechanism 110, as shown in Figure 25 comprises a sixteenth rotary cylinder 143, and a turnover piece 144 driven by the sixteenth rotary cylinder 143. The turnover piece 144 turns the base 1 by 180°, thereby facilitating the assembly of the subsequent button spring 13, button 14, and other components.

[0064] The terminal base assembling mechanism 111 assembles the first terminal assembly 7 with the base 1, as shown in Figure 22 and Figure 23As shown, it comprises a slider push rod assembly 122 arranged on the second turntable 64 and corresponding to the second clamp 60, the slider push rod assembly 122 comprises a second slide rail 123 arranged along the radial direction of the second turntable 64, a slider 124 slidingly installed on the second slide rail 123, and a terminal push rod 125 driving the first terminal assembly 7 to be loaded into the base 1, the top of the slider 124 is provided with a first protruding column 126 and a second protruding column 127 arranged oppositely; an eighteenth cylinder assembly 128 comprising an eighteenth cylinder 129 and an eighteenth push plate 130, the eighteenth push plate 130 is provided with a driving block 131 inserted between the first protruding column 126 and the second protruding column 127, the driving block 131 cooperates with the first protruding column 126 and the second protruding column 127 for driving the slider 124 to move.

[0065] A third material moving mechanism 112 switches the base 1 between each mechanism, such as Figure 24 As shown, it comprises a first slide rail 116, a plurality of first clamping plates 117, a first supporting plate 118, a seventeenth cylinder assembly 119, a second supporting plate 120 and an eighteenth cylinder assembly 121, the first slide rail 116 is for the base 1 to slide thereon, a plurality of the first clamping plates 117 are distributed along the length direction of the first supporting plate 118, and the first clamping plates 117 are shaped with clamping grooves adapted to the base 1, the seventeenth cylinder assembly 119 is arranged on the second supporting plate 120 for driving the first supporting plate 118 to move along the left and right direction of the first rack 34, and the eighteenth cylinder assembly 121 is for driving the second supporting plate 120 to move along the front and back direction of the first rack 34.

[0066] A terminal assembly device 200 assembles two second terminals 12 with the base 1, such as Figure 26 and Figure 27 As shown, it comprises two fourth vibratory feeders 202, two twenty-first cylinder assemblies 204, a twenty-second cylinder assembly 208 and a fourth material moving mechanism 211. Two fourth vibratory feeders 202 transfer the second terminal 12 to the corresponding fourth vibration track 203, and the two fourth vibration tracks 203 are arranged in parallel; as shown, Figure 29 Two twenty-first cylinder assemblies 204 each comprise a twenty-first cylinder 205 and a twenty-first push rod 206, the twenty-first push rod 206 is shaped with a terminal material moving groove 207 adapted to the second terminal 12 for transferring the second terminal 12 to the position to be assembled; as shown, Figure 28 and Figure 29As shown, the twenty-second cylinder assembly 208 is arranged between the two fourth vibration tracks 203, which comprises a twenty-second cylinder 209 and two twenty-second push rods 210 driven by the twenty-second cylinder 209, and the two twenty-second push rods 210 move the two second terminals 12 into the base 1; the fourth material moving mechanism 211 switches the base 1 between each station, which comprises a second clamping plate 268, a thirty-sixth cylinder assembly 269, a thirty-seventh cylinder assembly 270, and a fifth slide rail 271, the second clamping plate 268 is shaped with clamping grooves matched with the base 1, the thirty-sixth cylinder assembly 269 is used to drive the second clamping plate 268 to move left and right, the thirty-seventh cylinder assembly 270 is used to drive the second clamping plate 268 to move forward and backward, and the fifth slide rail 271 is used for the base 1 to slide thereon.

[0067] The spring lamp button assembly device 201 assembles the two conductive springs 15, the button spring 13, the lamp assembly 11, the button 14, and the base 1. As shown, Figure 30 The spring lamp button assembly device 201 comprises a third turntable 213, a third mechanical hand 215, a conductive spring assembly mechanism 216, a button spring assembly mechanism 217, a circuit board feeding mechanism 218, a lampshade feeding mechanism 219, a fourth material suction mechanical hand 220, a button assembly mechanism 221, and a fifth mechanical hand 222 distributed in sequence on the periphery of the third turntable 213.

[0068] The third turntable 213 is rotatably installed on the second rack 212 and has a plurality of third clamps 214 distributed in sequence along the circumference thereof.

[0069] The third mechanical hand 215 moves the base 1 assembled by the terminal assembly device 200 to the third clamp 214.

[0070] The conductive spring assembly mechanism 216 installs the two conductive springs 15 on the base 1, as shown, Figure 31 The conductive spring assembly mechanism 216 comprises a fifth vibration disc 223, which sends the two conductive springs 15 outward through two first connecting pipes 224; as Figure 32As shown, the second support 225 is provided with a twenty-third cylinder assembly 226 and a third slide rail 227, the twenty-third cylinder assembly 226 comprising a twenty-third cylinder 228 and a twenty-third push rod 229, the twenty-third push rod 229 being slidingly installed on the third slide rail 227 and being formed with two first accommodating holes 231 for accommodating the conductive springs 15, the third slide rail 227 being formed with a first material guiding hole 232, the twenty-third push rod 229 having a material dropping position and a material moving position, wherein, in the material dropping position, the first accommodating holes 231 are correspondingly arranged with the bottom outlet holes of the first connecting pipe 224, and in the material moving position, the first accommodating holes 231 are correspondingly arranged with the first material guiding hole 232. Figure 33 As shown, the third support 233 is provided with a second material guiding block 234, a twenty-fourth cylinder assembly 235, a third material guiding block 236 and a twenty-fifth cylinder assembly 237, the second material guiding block 234 being connected with the first material guiding hole 232 through a second connecting pipe and being formed with a second material guiding hole 238, the twenty-fourth cylinder assembly 235 comprising a twenty-fourth cylinder 239 and a twenty-fourth push rod 240, the twenty-fourth push rod 240 being formed with a second accommodating hole 242, as shown, Figure 34 As shown, the third material guiding block 236 is located above the third clamp 214 and is formed with a third material guiding hole 243 correspondingly arranged with the base 1, the twenty-fourth push rod 240 having a material dropping position and a material moving position, wherein, in the material dropping position, the second accommodating hole 242 is correspondingly arranged with the second material guiding hole 238, and in the material moving position, the second accommodating hole 242 is correspondingly arranged with the third material guiding hole 243, the twenty-fifth cylinder assembly 237 comprising a twenty-fifth cylinder 244 and a twenty-fifth push rod 245, the twenty-fifth push rod 245 being arranged above the third material guiding block 236 and being used for pressing the conductive springs 15 in the third material guiding hole 243 into the base 1.

[0071] The button spring assembling mechanism 217 is used for installing the button spring 13 on the base 1. As shown, Figure 35As shown, the button spring assembling mechanism 217 comprises a sixth vibrating disc 246, a fourth support 241 provided with a twenty-sixth cylinder assembly 248, a fourth slide rail 249 and a twenty-seventh cylinder assembly 250, the twenty-sixth cylinder assembly 248 comprises a twenty-sixth cylinder 251 and a twenty-sixth push rod 252, the twenty-sixth push rod 252 is slidingly installed on the fourth slide rail 249, and is formed with a third accommodating hole 253 for accommodating the button spring 13, the fourth slide rail 249 is formed with a fourth material guiding hole (not shown in the figure), the twenty-sixth push rod 252 has a material dropping position and a material moving position, wherein, in the material dropping position, the third accommodating hole 253 is correspondingly arranged with the bottom hole of the third connecting pipe 247, in the material moving position, the third accommodating hole 253 is correspondingly arranged with the fourth material guiding hole, the twenty-seventh cylinder assembly 250 comprises a twenty-seventh cylinder 254 and a twenty-seventh push rod 255, the twenty-seventh push rod 255 presses the button spring 13 in the fourth material guiding hole into the base 1.

[0072] The circuit board feeding mechanism 218 and the lampshade feeding mechanism 219 respectively place the circuit board 16 and the lampshade 17 on the third clamp 214, and the circuit board 16 and the lampshade 17 form a lamp assembly 11. As shown, Figure 36 As shown, the circuit board feeding mechanism 218 comprises a seventh vibrating disc 256, a seventh vibrating track 257 and a sixth material suction manipulator 258, the seventh vibrating disc 256 moves the circuit board 16 to the seventh vibrating track 257, and the sixth material suction manipulator 258 sucks and places the circuit board 16 on the third clamp 214; as shown, Figure 37 As shown, the lampshade feeding mechanism 219 comprises an eighth vibrating disc 259, an eighth vibrating track 260 and a seventh material suction manipulator 261, the eighth vibrating disc 259 moves the lampshade 17 to the eighth vibrating track 260, and the seventh material suction manipulator 261 sucks and places the lampshade 17 on the circuit board 16 of the third clamp 214. A fourth material suction manipulator 220 sucks and installs the lamp assembly 11 on the base 1, and the lampshade 17 is assembled with the base 1 by a hook. It should be noted that each manipulator is a mature technology, and therefore the specific structure and working principle thereof will not be described in detail. Figure 38 As shown,

[0073] A button assembling mechanism 221 assembles the button 14 with the base 1. As shown, Figure 39As shown, the button assembly mechanism 221 includes a ninth vibratory plate 262, a ninth vibratory track 263, a twenty-eighth cylinder assembly 264, and an eighth robotic arm 265. The ninth vibratory plate 262 moves the button 14 toward the ninth vibratory track 263. The twenty-eighth cylinder assembly 264 includes a twenty-eighth rotary cylinder 266 and a third rotating plate 267. The third rotating plate 267 moves the button 14 on the ninth vibratory track 263 to the clamping position. The eighth robotic arm 265 assembles the button 14 with the base 1.

[0074] Lifting plate assembly device 300, such as Figure 40 and Figure 41 The device includes a lifting sheet material reel 301, a second material conveying assembly 302, a second slicing mechanism 303, and a fifth material transfer mechanism 304.

[0075] Lifting sheet reel 301, suitable for storing and conveying lifting sheet 305, such as Figure 46 As shown, the lifting strip 305 includes a second connecting piece 306 and a plurality of lifting pieces 20 spaced apart along the length of the second connecting piece 306. The second connecting piece 306 is formed with second perforations 308 corresponding to the plurality of lifting pieces 20.

[0076] The second conveyor assembly 302 moves the lifting strip 305 to the position to be cut, such as... Figure 41 and Figure 45 As shown, it includes the second material conveying assembly 302, which includes a 29th cylinder assembly 309 and a second material conveying drive claw 310. The 29th cylinder assembly 309 includes a 29th cylinder 311 and a 29th push plate 312 driven by the 29th cylinder 311. The second material conveying drive claw 310 is rotatably mounted on the 29th push plate 312 by a third spring 313. It has a second claw-shaped portion 314 that cooperates with the second connecting piece 306. The second claw-shaped portion 314 has a vertical driving surface and an inclined surface respectively disposed on its two sides. When the second material strip driving claw 310 moves in one direction following the 29th push plate 312, under the elastic force of the third spring 313, its second claw-shaped portion 314 extends into the second through hole 308 of the second connecting piece 306, and the vertical driving surface abuts against the inner wall of the second through hole 308, driving the lifting piece material strip 305 to move synchronously; when the second material strip driving claw 310 moves in the opposite direction following the 29th push plate 312, the inclined surface of the second material strip driving claw 310 slides into contact with the second connecting piece 306, and moves relative to the lifting piece material strip 305.

[0077] The second slicing mechanism 303 cuts the connecting part between the pulling sheet 20 and the second connecting sheet 306, as shown in Figure 41 and Figure 42 The second slicing mechanism 303 includes a thirtieth cylinder assembly 315, a second lever 316, a second pressing block 317 and a second cutter 318. One end of the second lever 316 is provided with the second pressing block 317, and the other end is driven by the thirtieth cylinder assembly 315. The second cutter 318 is movably installed on a fifth support by a fourth spring, and cuts the second connecting sheet 306 under the drive of the second pressing block 317.

[0078] The fifth material moving mechanism 304 moves and assembles the pulling sheet 20 into the base 1, as shown in Figure 41 、 Figure 42 、 Figure 43 and Figure 44 The fifth material moving mechanism 304 includes a pulling sheet positioning mechanism 319, which includes a second stop block 320, a third pressing block 321 and a fifth spring (not shown in the figure). The third pressing block 321 is oppositely arranged with the second stop block 320. The third pressing block 321 presses the pulling sheet 20 tightly on the second stop block 320 under the elastic force of the fifth spring. As shown in Figure 4 a thirty-first cylinder assembly 322 is arranged below the pulling sheet 20, which includes a thirty-first cylinder 323 and a thirty-first push rod 324. The thirty-first push rod 324 pushes the pulling sheet 20 after slicing into a material moving rod 325. The material moving rod 325 and a thirty-second cylinder assembly 326 are arranged on a sixth support 327 and above the pulling sheet 20. The material moving rod 325 is shaped with a clamping hole for clamping the pulling sheet 20. The thirty-second cylinder assembly 326 includes a thirty-second cylinder 348 and a thirty-second push rod 328. As shown in Figure 5 the thirty-second push rod 328 extends into the clamping hole of the material moving rod 325, and presses the pulling sheet 20 into the base 1. A material moving cylinder assembly 329 is connected with the sixth support 327, and moves the pulling sheet 20 from the slicing position to the assembling position.

[0079] The cover plate assembling device 307 includes a cover plate feeding mechanism 331, a cover plate pressing mechanism 332 and a sixth material moving mechanism 333, as shown in Figure 47 .

[0080] The cover plate feeding mechanism 331 moves the cover plate 2 to the base 1, as shown in Figure 40 and Figure 47As shown, it comprises a tenth vibrating disc 334, a tenth vibrating track 335 and a ninth manipulator 336, the tenth vibrating disc 334 conveying the cover plate 2 to the tenth vibrating track 335, and the ninth manipulator 336 clamping and transferring the cover plate 2 from the tenth vibrating track 335 to the base 1.

[0081] It should be noted that the material moving cylinder assembly 329 and the ninth manipulator 336 are mature technologies, and thus the specific structure and working principle thereof will not be described in detail.

[0082] The cover plate pressing mechanism 332 presses the cover plate 2 and the base 1, which comprises a thirty-third cylinder 337 and a thirty-third push rod 338, and the thirty-third push rod 338 tightly connects the cover plate 2 and the base 1.

[0083] The sixth material moving mechanism 333 switches the base 1 between various stations, such as Figure 48 As shown, it comprises a sixth sliding rail 339, a plurality of third clamping plates 340, a third supporting plate 341, a thirty-fourth cylinder assembly 342, a fourth supporting plate 343 and a thirty-fifth cylinder assembly 344, the sixth sliding rail 339 is used for the base 1 to slide thereon, the third clamping plates 340 are distributed along the length direction of the third supporting plate 341, and the third clamping plates 340 are shaped with clamping grooves matched with the base 1, the thirty-fourth cylinder assembly 342 is arranged on the fourth supporting plate 343 and used for driving the third supporting plate 341 to move along the left-right direction of the third rack 347, and the thirty-fifth cylinder assembly 345 is used for driving the fourth supporting plate 343 to move along the front-back direction of the third rack 347.

[0084] The application further provides an assembling process of the boat-shaped overload protection switch, which comprises the following steps: S1, riveting and fixing one end of the bimetallic strip 3 and the first terminal 4; S2, inserting and fixing the other end of the bimetallic strip 3 and the spring 6, so that the spring 6, the bimetallic strip 3 and the first terminal 4 form a first terminal assembly 7; S3, bending the bimetallic strip 3 by a certain angle, and assembling the first terminal assembly 7 and the base 1; S4, assembling two second terminals 12 and the base 1; S5, assembling two conductive springs 15 and a button spring 13 and the base 1; S6, sequentially assembling a lamp assembly 11 and a button 14 and the base 1; S7, sequentially assembling a pull-tab 20 and a cover plate 2 and the base 1.

[0085] Before the first terminal assembly 7 is assembled with the base 1, a regulating screw 8 is assembled with the base 1.

[0086] The automatic assembly line integrates double gold riveting, spring bending assembly, terminal assembly, spring lamp button assembly, pull-tab assembly and cover plate assembly according to a reasonable process sequence, and the cover plate is used as a carrier and sequentially flows through each station to automatically complete assembly of all components, thereby greatly improving production efficiency and reducing production cost compared with the prior art.

[0087] Obviously, the above examples are only illustrative and not limiting. Based on the above description, other different forms of changes or variations can be made by those skilled in the art. Here, all embodiments cannot be exhaustively listed. The obvious changes or variations derived therefrom are still within the protection scope of the present application.

Claims

1. An automatic assembly line for boat-type overload protection switches, characterized in that, The device comprises a double-gold terminal riveting device (31), a spring assembly bending device (32), a terminal assembly device (200), a spring lamp button assembly device (201), a pull-tab assembly device (300) and a cover plate assembly device (307) arranged in sequence, The double-gold terminal riveting device (31) is used for riveting and fixing one end of the bimetallic strip (3) and the first terminal (4) to form a double-gold terminal assembly (5); The spring assembly bending device (32) is used for inserting and fixing the other end of the bimetallic strip (3) and the spring (6), so that the spring (6), the bimetallic strip (3) and the first terminal (4) form a first terminal assembly (7), and the bimetallic strip (3) is bent at a certain angle, and the first terminal assembly (7) is assembled with the base (1); The terminal assembly device (200) is used for assembling two second terminals (12) with the base (1); The spring lamp button assembly device (201) is used for assembling two conductive springs (15), a button spring (13), a lamp assembly (11) and a button (14) with the base (1); The pull-tab assembly device (300) is used for assembling a pull-tab (20) with the base (1); The cover plate assembly device (307) is used for assembling a cover plate (2) with the base (1).

2. An automatic assembly line for boat-type overload protection switches according to claim 1, characterized in that, The double-gold terminal riveting device (31) comprises: A first rotary disc (33) is rotatably installed on a first rack (34) and has a plurality of first clamps (35) distributed at intervals along the periphery thereof; A first terminal feeding mechanism (36), a terminal pressing mechanism (61), a bimetallic strip feeding mechanism (37), a riveting mechanism (38) and a first material moving mechanism (39) are sequentially distributed on the periphery of the first rotary disc (33), the first terminal feeding mechanism (36) moves and delivers the first terminal (4) to the first clamps (35), the terminal pressing mechanism (61) presses the first terminal (4), the bimetallic strip feeding mechanism (37) moves and delivers the bimetallic strip (3) to the first clamps (35), and one end of the bimetallic strip (3) abuts against the first terminal (4), the riveting mechanism (38) rivets and fixes one end of the bimetallic strip (3) and the first terminal (4), and the first material moving mechanism (39) moves and delivers the riveted double-gold terminal assembly (5) to the spring assembly bending device (32); The first terminal feeding mechanism (36) comprises a first vibrating disc (40), a first vibrating track (41), a first cylinder assembly (42) and a first mechanical hand (43), the first vibrating disc (40) moves and delivers the first terminal (4) to the first vibrating track (41), the first cylinder assembly (42) moves and delivers the first terminal (4) at the end of the first vibrating track (41) to a clamping position, and the first mechanical hand (43) clamps the first terminal (4) and moves it into a first installation groove of the first clamps (35). The terminal pressing mechanism (61) comprises a sixth cylinder (62) and a first pressing rod (63) driven by the sixth cylinder (62), the first pressing rod (63) presses the first terminal (4) and the first clamp (35) in place; The bimetallic strip feeding mechanism (37) comprises a second vibration disc (44), a second vibration track (45), a second cylinder assembly (46), a third cylinder assembly (47) and a first material suction assembly (48), the second vibration disc (44) moves the bimetallic strip (3) to the second vibration track (45), the second cylinder assembly (46) comprises a first rotating plate (49) and a second cylinder (50) for driving the first rotating plate (49) to rotate, the first rotating plate (49) is formed with a bimetallic strip moving groove (51) corresponding to the end of the second vibration track (45), the first rotating plate (49) moves the bimetallic strip (3) on the second vibration track (45) to a first moving position, the third cylinder assembly (47) moves the bimetallic strip (3) at the first moving position to a position to be sucked, the first material suction assembly (48) sucks the bimetallic strip (3) and moves it into a second installation groove of the first clamp (35); The first moving mechanism (39) comprises a second mechanical hand (52), a third vibration track (53), a fourth cylinder assembly (54) and a fifth cylinder assembly (55), the second mechanical hand (52) clamps the bimetallic terminal assembly (5) on the first clamp (35) to the third vibration track (53), the fourth cylinder assembly (54) comprises a fourth cylinder (56) and a fourth push plate (57) driven by the fourth cylinder (56), the fourth push plate (57) is formed with a moving groove matched with the bimetallic terminal assembly (5), the fourth push plate (57) moves the bimetallic terminal assembly (5) on the third vibration track (53) to a second moving position, the fifth cylinder assembly (55) comprises a fifth cylinder (58) and a fifth push rod (59) driven by the fifth cylinder (58), the fifth push rod (59) moves the bimetallic terminal assembly (5) at the second moving position to the second clamp (60) of the elastic piece assembly and bending device (32), the moving direction of the fifth push rod (59) is perpendicular to the moving direction of the fourth push plate (57).

3. An automatic assembly line for boat-type overload protection switches according to claim 1, characterized in that, The elastic sheet assembly and bending device (32) comprises a second rotary disc (64), an elastic sheet assembly mechanism (65), a double-metal sheet bending mechanism (66) and a terminal screw base assembly device (67) distributed in sequence on the periphery of the second rotary disc (64), the second rotary disc (64) is rotatably installed on the first rack (34) and has a plurality of second clamps (60) distributed in sequence on the periphery thereof; the elastic sheet assembly mechanism (65) is used for inserting and fixing an elastic sheet (6) with the other end of the double-metal sheet (3), so that the elastic sheet (6), the double-metal sheet (3) and the first terminal (4) form a first terminal assembly (7); the double-metal sheet bending mechanism (66) is used for bending the double-metal sheet (3) by a certain angle; and the terminal screw base assembly device (67) is used for assembling the adjusting screw (8) with the base (1) and then assembling the first terminal assembly (7) which is assembled.

4. An automatic assembly line for boat-type overload protection switches according to claim 3, characterized in that, The elastic sheet assembly mechanism (65) comprises: an elastic sheet feeding mechanism (68) which is used for moving and transferring the elastic sheet (6) into the second clamp (60); a double-metal sheet pre-pressing mechanism (69) which is arranged above the second clamp (60) and comprises a seventh cylinder and a seventh push rod (70) driven by the seventh cylinder, the seventh push rod (70) is arranged opposite to the end of the double-metal sheet (3) away from the riveting position, and has an initial position and a pre-pressing position, wherein, before the elastic sheet (6) is loaded into the second clamp (60), the seventh push rod (70) is in the pre-pressing position, the seventh push rod (70) drives the double-metal sheet (3) to deform downward away from the insertion block part (9) of the riveting position, and after the elastic sheet (6) is loaded into the second clamp (60), the seventh push rod (70) moves to the initial position, the double-metal sheet (3) restores the deformation, and the insertion block part (9) is inserted into the insertion hole (10) of the elastic sheet (6).

5. An automatic assembly line for boat-type overload protection switches according to claim 4, characterized in that, The elastic sheet feeding mechanism (68) comprises: an elastic sheet strip disc (71) which is suitable for storing and outwardly conveying an elastic sheet strip (72), the elastic sheet strip (72) comprises a first connecting sheet (73) and a plurality of elastic sheets (6) distributed in sequence along the length direction of the first connecting sheet (73), and a first perforation (74) corresponding to the plurality of elastic sheets (6) is formed on the first connecting sheet (73); The first material belt conveying assembly (75) comprises an eighth cylinder assembly (76) and a first material belt driving claw (77), the eighth cylinder assembly (76) comprises an eighth cylinder (78) and an eighth push plate (79) driven by the eighth cylinder (78), the first material belt driving claw (77) is rotatably installed on the eighth push plate (79) through a first spring (80) and is provided with a first claw-shaped part (81) matched with the first connecting piece (73), wherein when the first material belt driving claw (77) moves along with the eighth push plate (79) in one direction, the first claw-shaped part (81) of the first material belt driving claw (77) extends into the first perforation (74) of the first connecting piece (73) under the elastic force of the first spring (80) to drive the sheet material belt (72) to move synchronously; when the first material belt driving claw (77) moves along with the eighth push plate (79) in the opposite direction, the first material belt driving claw (77) moves relative to the sheet material belt (72); The first slicing mechanism (82) comprises a ninth cylinder assembly (83), a first lever (84), a first pressing block (85) and a first cutter (86), one end of the first lever (84) is provided with the first pressing block (85), the other end is driven by the ninth cylinder assembly (83), the first cutter (86) is movably installed on the first rack (34) through a second spring and cuts off the first connecting piece (73) under the drive of the first pressing block (85); The second material moving mechanism (87) comprises a tenth cylinder assembly (88), an eleventh cylinder assembly (89), a twelfth cylinder assembly (90) and a thirteenth cylinder assembly (91), the tenth cylinder assembly (88) comprises a tenth cylinder (92) and a tenth push rod (93), the tenth push rod (93) moves the sheet (6) after slicing to a third material moving position, the eleventh cylinder assembly (89) comprises an eleventh rotary cylinder and a second rotating plate (95) driven by the eleventh rotary cylinder, a twelfth push rod (97) of the twelfth cylinder assembly (90) moves the sheet (6) to a material moving groove of the second rotating plate (95) under the drive of a twelfth cylinder (96), the second rotating plate (95) moves the sheet (6) to a fourth material moving position, the thirteenth cylinder assembly (91) comprises a thirteenth cylinder (98) and a thirteenth push rod (99), the thirteenth push rod (99) moves the sheet (6) in the fourth material moving position to the second clamp (60), wherein the moving directions of the thirteenth push rod (99) and the twelfth push rod (97) are perpendicular to the moving direction of the tenth push rod (93).

6. An automatic assembly line for boat-type overload protection switches according to claim 3, characterized in that, The second clamp (60) has a first stop block (100) above the bimetallic strip (3), and the bimetallic strip bending mechanism (66) comprises: The fourteenth cylinder assembly (101) comprises a fourteenth cylinder (103) mounted on the first support (102), and a fourteenth push rod (104) driven by the fourteenth cylinder (103), which is inserted into the second clamp (60) in a horizontal direction and moves to the lower side of the bimetallic strip (3); The fifteenth cylinder assembly (105) comprises a fifteenth cylinder (106) and a fifteenth push rod (107) connected with the first support (102) for driving the first support (102) to move up and down.

7. An automatic assembly line for boat-type overload protection switches according to claim 3, characterized in that, The terminal screw base assembling device (67) comprises a base feeding mechanism (108), a screw driving mechanism (109), a turnover mechanism (110), a terminal base assembling mechanism (111) arranged in sequence, and a third material moving mechanism (112) for switching the base (1) between the mechanisms; The base feeding mechanism (108) comprises a third vibration disc (113), an eleventh vibration track (114) and a fifteenth cylinder assembly (115), the third vibration disc (113) moves the base (1) to the eleventh vibration track (114), and the fifteenth cylinder assembly (115) moves the base (1) at the end of the eleventh vibration track (114) to the next station; The screw driving mechanism (109) assembles the adjusting screw (8) with the base (1); The turnover mechanism (110) comprises a sixteenth rotating cylinder (143) and a turnover piece (144) driven by the sixteenth rotating cylinder (143), the turnover piece (144) turns the base (1) by 180°; The terminal base assembling mechanism (111) assembles the first terminal assembly (7) with the base (1); The third material moving mechanism (112) switches the base (1) between the mechanisms, which comprises a first sliding rail (116), a plurality of first clamping plates (117), a first support plate (118), a seventeenth cylinder assembly (119), a second support plate (120) and an eighteenth cylinder assembly (121), the first sliding rail (116) is used for sliding of the base (1), the first clamping plates (117) are distributed along the length direction of the first support plate (118) and are formed with clamping grooves matched with the base (1), the seventeenth cylinder assembly (119) is arranged on the second support plate (120) and is used for driving the first support plate (118) to move along the left-right direction of the first rack (34), and the eighteenth cylinder assembly (121) is used for driving the second support plate (120) to move along the front-rear direction of the first rack (34).

8. An automatic assembly line for boat-type overload protection switches according to claim 7, characterized in that, The terminal base assembling mechanism (111) comprises: A slider push rod assembly (122) is arranged on the second rotary disc (64) and corresponds to the second clamp (60), the slider push rod assembly (122) comprises a second sliding rail (123), a slider (124) and a terminal push rod (125), the second sliding rail (123) is arranged along the radial direction of the second rotary disc (64), the slider (124) is slidingly installed on the second sliding rail (123), and the first terminal assembly (7) is driven to be loaded into the base (1) by the terminal push rod (125), the top of the slider (124) is provided with a first protruding column (126) and a second protruding column (127) arranged oppositely; An eighteenth cylinder assembly (128) comprises an eighteenth cylinder (129) and an eighteenth push plate (130), the eighteenth push plate (130) is provided with a driving block (131) inserted between the first protruding column (126) and the second protruding column (127), and the driving block (131) cooperates with the first protruding column (126) and the second protruding column (127) to drive the slider (124) to move.

9. An automatic assembly line for boat-type overload protection switches according to claim 7 or 8, characterized in that, The terminal screw base assembling device (67) further comprises a screw height detection mechanism (132) and an unqualified product discharge mechanism (133) arranged between the screw driving mechanism (109) and the turnover mechanism (110); The screw height detection mechanism (132) comprises a nineteenth cylinder assembly (134), a detection rod assembly (135) and a sensor (136), the nineteenth cylinder assembly (134) comprises a nineteenth cylinder (137) and a nineteenth push rod (138), the detection rod assembly (135) comprises a detection block (139) fixed with the nineteenth push rod (138) and a detection rod (140) movably installed on the detection block (139), the bottom of the detection rod (140) can abut against the adjusting screw (8), and the sensor (136) is arranged above the detection rod (140) and is used for detecting the distance between the top of the detection rod (140) and the sensor (136); The unqualified product discharge mechanism (133) comprises a twentieth cylinder assembly (141) and an L-shaped lifting block (142), the L-shaped lifting block (142) has a conveying position flush with the first sliding rail (116) and an unqualified product discharge position lifted upward.

10. An automatic assembly line for boat-type overload protection switches according to claim 1, characterized in that, The terminal assembling device (200) comprises: Two fourth vibration discs (202) are used for conveying the second terminal (12) to corresponding fourth vibration tracks (203), and the two fourth vibration tracks (203) are arranged in parallel; Two twenty-first cylinder assemblies (204) each comprise a twenty-first cylinder (205) and a twenty-first push rod (206), the twenty-first push rod (206) is formed with a terminal conveying groove (207) matched with the second terminal (12), and the second terminal (12) is conveyed to a position to be assembled; The twenty-second cylinder assembly (208) comprises a twenty-second cylinder (209), and two twenty-second push rods (210) driven by the twenty-second cylinder (209), and the two twenty-second push rods (210) move the two second terminals (12) into the base (1); The fourth material moving mechanism (211) switches the base (1) between various stations.

11. An automatic assembly line for boat-type overload protection switches according to claim 1, characterized in that, The spring lamp button assembly device (201) comprises: A third turntable (213) is rotationally installed on the second rack (212) and has a plurality of third clamps (214) distributed along the circumference thereof; A third mechanical hand (215), a conductive spring assembly mechanism (216), a button spring assembly mechanism (217), a circuit board feeding mechanism (218), a lampshade feeding mechanism (219), a fourth material suction mechanical hand (220), a button assembly mechanism (221), and a fifth mechanical hand (222) are sequentially distributed on the periphery of the third turntable (213); The third mechanical hand (215) moves the base (1) assembled by the terminal assembly device (200) to the third clamp (214); The conductive spring assembly mechanism (216) installs two conductive springs (15) on the base (1); The button spring assembly mechanism (217) installs the button spring (13) on the base (1); The circuit board feeding mechanism (218) and the lampshade feeding mechanism (219) respectively place a circuit board (16) and a lampshade (17) on the third clamp (214), and the circuit board (16) and the lampshade (17) form a lamp assembly (11); The fourth material suction mechanical hand (220) installs the lamp assembly (11) on the base (1); The button assembly mechanism (221) assembles the button (14) with the base (1); The fifth mechanical hand (222) moves the assembled base (1) from the third turntable (213) to the next station.

12. An automatic assembly line for boat-type overload protection switches according to claim 11, characterized in that, The conductive spring assembly mechanism (216) comprises: A fifth vibration disc (223) outwardly feeds two conductive springs (15) through two first connecting pipes (224); A second support (225) is provided with a twenty-third cylinder assembly (226) and a third sliding rail (227), the twenty-third cylinder assembly (226) comprises a twenty-third cylinder (228) and a twenty-third push rod (229), the twenty-third push rod (229) is slidingly installed on the third sliding rail (227), and the twenty-third push rod (229) is formed with two first accommodating holes (231) for accommodating the conductive springs (15), the third sliding rail (227) is formed with a first material guiding hole (232), and the twenty-third push rod (229) has a material falling position and a material moving position, wherein, in the material falling position, the first accommodating hole (231) is correspondingly arranged with the bottom outlet hole of the first connecting pipe (224), and in the material moving position, the first accommodating hole (231) is correspondingly arranged with the first material guiding hole (232). The third support (233) is provided with a second material guide block (234), a twenty-fourth cylinder assembly (235), a third material guide block (236) and a twenty-fifth cylinder assembly (237). The second material guide block (234) is connected with the first material guide hole (232) through a second connecting pipe, and is formed with a second material guide hole (238). The twenty-fourth cylinder assembly (235) comprises a twenty-fourth cylinder (239) and a twenty-fourth push rod (240), and the twenty-fourth push rod (240) is formed with a second containing hole (242). The third material guide block (236) is located above the third clamp (214) and is formed with a third material guide hole (243) corresponding to the base (1). The twenty-fourth push rod (240) has a blanking position and a material moving position. When the twenty-fourth push rod (240) is at the blanking position, the second containing hole (242) is correspondingly arranged with the second material guide hole (238). When the twenty-fourth push rod (240) is at the material moving position, the second containing hole (242) is correspondingly arranged with the third material guide hole (243). The twenty-fifth cylinder assembly (237) comprises a twenty-fifth cylinder (244) and a twenty-fifth push rod (245). The twenty-fifth push rod (245) is arranged above the third material guide block (236) and is used for pressing the conductive spring (15) in the third material guide hole (243) into the base (1).

13. An automatic assembly line for boat-type overload protection switches according to claim 11, characterized in that, The button spring assembly mechanism (217) comprises: A sixth vibrating disc (246) is used for conveying the button spring (13) outward through a third connecting pipe (247); A fourth support (241) is provided with a twenty-sixth cylinder assembly (248), a fourth sliding rail (249) and a twenty-seventh cylinder assembly (250). The twenty-sixth cylinder assembly (248) comprises a twenty-sixth cylinder (251) and a twenty-sixth push rod (252). The twenty-sixth push rod (252) is slidingly installed on the fourth sliding rail (249) and is formed with a third containing hole (253) for containing the button spring (13). The fourth sliding rail (249) is formed with a fourth material guide hole. The twenty-sixth push rod (252) has a blanking position and a material moving position. When the twenty-sixth push rod (252) is at the blanking position, the third containing hole (253) is correspondingly arranged with a bottom outlet hole of the third connecting pipe (247). When the twenty-sixth push rod (252) is at the material moving position, the third containing hole (253) is correspondingly arranged with the fourth material guide hole. The twenty-seventh cylinder assembly (250) comprises a twenty-seventh cylinder (254) and a twenty-seventh push rod (255). The twenty-seventh push rod (255) is used for pressing the button spring (13) in the fourth material guide hole into the base (1).

14. An automatic assembly line for boat-type overload protection switches according to claim 11, characterized in that, The circuit board feeding mechanism (218) comprises a seventh vibration disc (256), a seventh vibration track (257) and a sixth suction manipulator (258), the seventh vibration disc (256) moves the circuit board (16) to the seventh vibration track (257), and the sixth suction manipulator (258) sucks the circuit board (16) and places it on the third clamp (214); The lampshade feeding mechanism (219) comprises an eighth vibration disc (259), an eighth vibration track (260) and a seventh suction manipulator (261), the eighth vibration disc (259) moves the lampshade (17) to the eighth vibration track (260), and the seventh suction manipulator (261) sucks the lampshade (17) and places it on the circuit board (16) of the third clamp (214); The button assembling mechanism (221) comprises a ninth vibration disc (262), a ninth vibration track (263), a twenty-eighth cylinder assembly (264) and an eighth manipulator (265), the ninth vibration disc (262) moves the button (14) to the ninth vibration track (263), the twenty-eighth cylinder assembly (264) comprises a twenty-eighth rotary cylinder (266) and a third rotating plate (267), the third rotating plate (267) moves the button (14) on the ninth vibration track (263) to a clamping position, and the eighth manipulator (265) assembles the button (14) and the base (1).

15. An automatic assembly line for boat-type overload protection switches according to claim 1, characterized in that, The pull-tab assembling device (300) comprises a pull-tab tape reel (301), a second tape conveying assembly (302), a second cutting mechanism (303) and a fifth material moving mechanism (304), the pull-tab tape reel (301) is suitable for storing and conveying outward a pull-tab tape (305), the pull-tab tape (305) comprises a second connecting piece (306) and a plurality of pull tabs (20) distributed along the length direction of the second connecting piece (306) at intervals, the second tape conveying assembly (302) moves the pull-tab tape (305) to a cutting position, the second cutting mechanism (303) cuts the connecting part between the pull tab (20) and the second connecting piece (306), and the fifth material moving mechanism (304) moves and assembles the pull tab (20) into the base (1).

16. An automatic assembly line for boat-type overload protection switches according to claim 15, characterized in that, The second connecting piece (306) is formed with second through holes (308) corresponding to the plurality of pulling pieces (20), the second material belt conveying assembly (302) comprises a second twenty-ninth cylinder assembly (309) and a second material belt driving claw (310), the second twenty-ninth cylinder assembly (309) comprises a second twenty-ninth cylinder (311) and a second twenty-ninth push plate (312) driven by the second twenty-ninth cylinder (311), the second material belt driving claw (310) is rotatably installed on the second twenty-ninth push plate (312) by a third spring (313) and is provided with a second claw-shaped portion (314) matched with the second connecting piece (306), when the second material belt driving claw (310) moves in one direction along with the second twenty-ninth push plate (312), the second claw-shaped portion (314) of the second material belt driving claw (310) extends into the second through hole (308) of the second connecting piece (306) under the elastic force of the third spring (313) to drive the pulling piece material belt (305) to move synchronously, and when the second material belt driving claw (310) moves in the opposite direction along with the second twenty-ninth push plate (312), the second material belt driving claw (310) moves relative to the pulling piece material belt (305).

17. An automatic assembly line for boat-type overload protection switches according to claim 15, characterized in that, The second slicing mechanism (303) comprises a third thirty cylinder assembly (315), a second lever (316), a second pressing block (317) and a second cutter (318), one end of the second lever (316) is provided with the second pressing block (317), the other end is driven by the third thirty cylinder assembly (315), the second cutter (318) is movably installed on a fifth support by a fourth spring and cuts off the second connecting piece (306) under the driving of the second pressing block (317).

18. An automatic assembly line for boat-type overload protection switches according to claim 15, characterized in that, The fifth material moving mechanism (304) comprises: A pulling piece positioning mechanism (319) comprising a second stop block (320), a third pressing block (321) and a fifth spring, the third pressing block (321) is oppositely arranged with the second stop block (320), and the third pressing block (321) presses the pulling piece (20) tightly on the second stop block (320) under the elastic force of the fifth spring; A third thirty-one cylinder assembly (322) arranged below the pulling piece (20) and comprising a third thirty-one cylinder (323) and a third thirty-one push rod (324), the third thirty-one push rod (324) pushes the pulling piece (20) after slicing into a material moving rod (325); The material moving rod (325) and a third thirty-two cylinder assembly (326) are arranged on a sixth support (327) and above the pulling piece (20), the material moving rod (325) is formed with a clamping hole for clamping the pulling piece (20), the third thirty-two cylinder assembly (326) comprises a third thirty-two cylinder (348) and a third thirty-two push rod (328), and the third thirty-two push rod (328) extends into the clamping hole to press the pulling piece (20) into the base (1); A material moving cylinder assembly (329) is connected with the sixth support (327) to move the pulling piece (20) from the cutting position to the assembling position.

19. An automatic assembly line for boat-type overload protection switches according to claim 1, characterized in that, The cover plate assembling device (307) comprises: A cover plate feeding mechanism (331) for moving the cover plate (2) to the base (1), which comprises a tenth vibration disc (334), a tenth vibration track (335) and a ninth mechanical arm (336), the tenth vibration disc (334) feeds the cover plate (2) to the tenth vibration track (335), and the ninth mechanical arm (336) clamps and moves the cover plate (2) from the tenth vibration track (335) to the base (1); A cover plate pressing mechanism (332) for pressing the cover plate (2) and the base (1), which comprises a thirty-third cylinder (337) and a thirty-third push rod (338), the thirty-third push rod (338) buckles the cover plate (2) and the base (1); A sixth material moving mechanism (333) for switching the base (1) between various stations, which comprises a sixth sliding rail (339), a plurality of third clamping plates (340), a third support plate (341), a thirty-fourth cylinder assembly (342), a fourth support plate (343) and a thirty-fifth cylinder assembly (344), the sixth sliding rail (339) is used for sliding of the base (1), the third clamping plates (340) are distributed along the length direction of the third support plate (341), the third clamping plates (340) are formed with clamping grooves matched with the base (1), the thirty-fourth cylinder assembly (342) is arranged on the fourth support plate (343) and used for driving the third support plate (341) to move along the left-right direction of a third rack (347), and the thirty-fifth cylinder assembly (345) is used for driving the fourth support plate (343) to move along the front-back direction of the third rack (347).

20. An assembly process for a boat-type overload protection switch, characterized by, The method comprises the following steps: S1, riveting and fixing one end of the bimetallic strip (3) and the first terminal (4); S2, inserting and fixing the other end of the bimetallic strip (3) and the spring (6), so that the spring (6), the bimetallic strip (3) and the first terminal (4) form a first terminal assembly (7); S3, bending the bimetallic strip (3) by a certain angle, and assembling the first terminal assembly (7) and the base (1); S4, assembling two second terminals (12) and the base (1); S5, assembling two conductive springs (15) and a button spring (13) and the base (1); S6, sequentially assembling a lamp assembly (11) and a button (14) and the base (1); S7, sequentially assembling a pulling piece (20) and a cover plate (2) and the base (1).

21. An assembly process for a boat-type overload protection switch according to claim 20, characterized in that, Further comprising: Assembling an adjusting screw (8) and the base (1) before assembling the first terminal assembly (7) and the base (1).

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