Automatic assembly equipment for miniature circuit breakers

Abstract

An automatic assembly equipment for miniature circuit breaker. The existing automatic assembly equipment for miniature circuit breaker can only realize the assembly of the machine core, the movable contact, the wire and the double gold through different machines and equipment. The automatic assembly equipment for miniature circuit breaker comprises a workbench, a rotating disc, a clamp, a machine core feeding device, a movable contact feeding device, a wire feeding and welding device, a double gold feeding device, a welding device and a hot riveting device for hot riveting the machine core, the movable contact and the wire. The machine core feeding device, the movable contact feeding device, the wire feeding and welding device, the double gold feeding device, the welding device and the hot riveting device are sequentially arranged. The automatic assembly equipment for miniature circuit breaker can realize the one-time assembly of the machine core, the movable contact, the wire and the double gold, and has the advantages of convenient processing, simple structure, small product size, reliable action, long service life and the like.

Description

Technical Field

[0001] This invention relates to a miniature circuit breaker processing equipment, and more specifically to an automatic assembly equipment for miniature circuit breakers. Background Technology

[0002] A miniature circuit breaker (MCB), also known as a microcircuit breaker, is suitable for overload and short-circuit protection of low-voltage lines. It can also be used for infrequent switching of circuits under normal conditions. Miniature circuit breakers are mainly used in various locations including industrial, commercial, high-rise, and residential buildings. A miniature circuit breaker typically includes a housing, operating mechanism, tripping system, contact system, and arc-extinguishing system. The operating handle moves the moving contact in the contact system via the operating mechanism, thus connecting and disconnecting the circuit and controlling the electrical circuit. In actual production, the moving contact is usually mounted on a contact frame, which is typically equipped with latches and other fasteners. The contact frame, latches, and other fasteners can be understood as the mechanism. During actual assembly, the moving contact is usually mounted on the contact frame, and a wire needs to be welded to it. This wire then needs to be welded to a bimetallic strip (a composite material made of two or more metals or other materials with suitable properties; also known as a thermal bimetallic strip, where the active layer deforms more than the passive layer due to different coefficients of thermal expansion, causing the bimetallic strip to bend towards the passive layer, thus changing the curvature of the composite material and causing deformation).

[0003] In automated assembly equipment for miniature circuit breakers, each step is typically processed individually, and then manually transported before proceeding to the next process. Generally, the moving contact feeding and connection to the core, as well as the wire and bimetallic welding, are usually produced and assembled separately by individual equipment. This is time-consuming, labor-intensive, and results in large equipment size and low automation. Since the moving contact is located in the slot of the contact holder (core), it can detach during the clamping process due to product size, precision, and centrifugal force during clamping rotation, affecting subsequent processing. Because the wires are typically copper, multiple copper wires are usually twisted together and welded to the moving contact for circuit continuity. However, existing copper wire connections to the moving contact and copper wire-to-bimetallic welding are unreliable. Furthermore, existing clamping structures are simple, only able to accommodate the core for the connection between the core and the moving contact, but unable to perform subsequent processing such as clamping wires or accommodating bimetallic welding, resulting in limited product compatibility and the inability to perform connection processing. Summary of the Invention

[0004] To address the problem that existing automated assembly setups for miniature circuit breakers can only achieve the assembly of the core, moving contact, wires, and double metal parts through different machines, this invention provides an automated assembly device for miniature circuit breakers.

[0005] The technical solution of this invention is: an automatic assembly device for miniature circuit breakers, including a workbench, and further comprising: A turntable is mounted on a worktable and rotates relative to the circumference of the worktable. A fixture is used to receive a workpiece to be processed and / or to drive the workpiece to be processed to rotate; the fixture is mounted on a turntable and is driven to rotate circumferentially by the turntable. The movement feeding device is located on the workbench and on the outside of the turntable, and is used for feeding the movement. The moving contact feeding device is located on the workbench and on the outside of the turntable, and is used for feeding moving contacts. The wire feeding and welding device is located on the workbench and outside the turntable. It is used for feeding wires and welding them before feeding. The double metal feeding device is located on the workbench and on the outside of the turntable, and is used for double metal feeding. A welding device, located on the workbench and outside the turntable, is used to weld bimetallic metal to wires. The hot riveting device is located on the workbench and on the outside of the turntable, and is used to perform hot riveting on the mechanism, moving contact and wire; the mechanism feeding device, moving contact feeding device, wire feeding and welding device, double metal feeding device, welding device and hot riveting device are arranged in sequence.

[0006] As a further improvement of the present invention, it also includes a dotting device, which is disposed between the moving contact feeding device and the wire feeding and welding device, for dotting the movement of the mechanism so that the moving contact is disposed on the mechanism and tightly fitted to the mechanism.

[0007] As a further improvement of the present invention, the dotting device includes: The dot rack is set up on the workbench; The dotting pusher, located on the dotting frame, is used to horizontally push the contact from the turntable in a radial direction so that the moving contact moves toward the mechanism and limits the moving contact. A dot-marking limiter, located on the dot-marking frame, is used to press down from above the driven contact to limit the moving contact. The dotting component, located on the dotting frame, is used to press down on the connection between the moving contact and the mechanism, causing the mechanism to deform and form an interference fit with the moving contact.

[0008] As a further improvement of the present invention, it also includes a glue-applying device, disposed between the dotting device and the wire feeding and welding device; the glue-applying device includes a glue-applying mechanism for applying glue to the moving contact disposed on the movement mechanism, the glue-applying mechanism having a first position during installation and a second position for applying glue to the moving contact to facilitate the connection between the wire and the moving contact; the dotting push member and the dotting limit member act synchronously and both act before the dotting member, the dotting limit member is obliquely disposed on the dotting frame and presses down obliquely above the moving contact to limit the moving contact.

[0009] As a further improvement of the present invention, the clamp includes: The fixture base is mounted on the turntable and is linked to the turntable; A movement base is provided on a fixture base, and the movement base is provided with a movement slot for accommodating a continuing movement; The clamp has a first position that is open to facilitate the placement and removal of the wire and a second position that clamps the wire. A clamping plate drive unit passes through the clamping seat and is linked with the clamping seat. The clamping plate drive unit is connected to the clamping plate and is used to drive the clamping plate to move. The double metal base is mounted on the clamp base and is used to support the double metal pieces and drive their movement. The double metal base and the clamp base are detachably connected.

[0010] As a further improvement of the present invention, the double gold base is provided with a double gold groove for accommodating the double gold, and a double gold positioning member for limiting the double gold is provided in the double gold groove. The double gold base is provided with a double gold clamping mechanism, which includes a double gold clamping rod. The double gold clamping rod has a first position for opening to facilitate the taking and putting of the double gold and a second position for clamping the double gold.

[0011] As a further improvement of the present invention, the double-metal clamping mechanism includes a double-metal elastic element and a double-metal top for facilitating the pushing of the double-metal clamping rod. The double-metal elastic element is sleeved on the double-metal clamping rod and abuts against the double-metal top. The double-metal elastic element has a tendency to drive the double-metal clamping rod to its second position. The double-metal clamping rod is provided with a double-metal clamping part that cooperates with the double-metal positioning element for horizontally clamping the double metal. The double-metal clamping rod is L-shaped or T-shaped.

[0012] As a further improvement to the present invention, it also includes: The fixed plate, wherein the turntable is coaxially arranged with the fixed plate and rotates relative to the fixed plate; The moving contact drive is located on the fixed plate and is used to press the moving contact from above when the moving contact is placed on the movement. The dual-metal drive unit, located on the fixed plate, is used to push the dual-metal top head or the dual-metal clamping rod to unlock the dual-metal clamping rod and facilitate dual-metal feeding. An air blowing mechanism, located on a fixed plate, is used to blow air to cool the fixture during the hot riveting process in the hot riveting device. The double metal discharge drive unit is located on the fixed plate and is used to push the double metal top head or the double metal clamping rod to unlock the double metal clamping rod.

[0013] As a further improvement of the present invention, the wire feeding and welding device includes: A wire guide frame is used to hold the wires to be fed in. Cable tray, used for cable entry; A wire welding mechanism is used to weld knots onto wires. A wire cutting mechanism includes a wire seat and a cutter; the wire seat is provided with a cutter drive component, which is connected to the cutter and is used to drive the cutter to cut the wire. A wire clamping mechanism is used to clamp the wire and pull it forward. The wire feeding mechanism is used to clamp the cut wire and place it above the moving contact plate.

[0014] As a further improvement of the present invention, the wire seat is provided with a guide plate, the guide plate is provided with a wire pressing plate for pressing the wire, and the guide plate is provided with a wire groove for the wire to pass through; there are two cutting drive components, and the two cutting drive components are connected by a connecting plate, the connecting plate is hinged to the wire seat, and the two cutting drive components are located in the wire seat and are limited by the wire seat to realize their vertical movement relative to the wire seat.

[0015] The beneficial effects of this invention are that it includes a movement feeding device, a moving contact feeding device, a wire feeding and welding device, a double metal feeding device, a welding device, and a hot riveting device, which can realize one-time assembly and processing of the movement, moving contact, wire and double metal. It has the advantages of convenient processing, simple structure, small product size, reliable operation and long service life. Attached Figure Description

[0016] Appendix Figure 1 This is a schematic diagram of the structure of an embodiment of the present invention.

[0017] Appendix Figure 2 This is a schematic diagram of the structure of the platen in an embodiment of the present invention.

[0018] Appendix Figure 3 This is a schematic diagram of the fixture in an embodiment of the present invention.

[0019] Appendix Figure 4 For the appendix Figure 3 A schematic diagram of the explosion structure.

[0020] Appendix Figure 5This is a schematic diagram of the mechanism feeding device in an embodiment of the present invention.

[0021] Appendix Figure 6 This is a schematic diagram of the moving contact feeding device in an embodiment of the present invention.

[0022] Appendix Figure 7 This is an exploded structural diagram of the wire feeding and welding device in an embodiment of the present invention.

[0023] Appendix Figure 8 This is an exploded structural diagram of the wire cutting mechanism in an embodiment of the present invention.

[0024] Appendix Figure 9 This is a schematic diagram of the structure of the double gold feeding device in an embodiment of the present invention.

[0025] Appendix Figure 10 This is a schematic diagram of the welding device in an embodiment of the present invention.

[0026] Appendix Figure 11 This is a schematic diagram of the structure of the hot riveting device in an embodiment of the present invention.

[0027] Appendix Figure 12 This is a schematic diagram of the dotting device in an embodiment of the present invention.

[0028] Appendix Figure 13 This is a schematic diagram of the glue applicator in an embodiment of the present invention.

[0029] Appendix Figure 14 This is a schematic diagram of the discharge device in an embodiment of the present invention.

[0030] In the diagram, 1. Workbench; 11. Turntable; 12. Fixed plate; 13. Moving contact drive; 14. Double metal drive; 15. Air blowing mechanism; 16. Double metal discharge drive; 17. Discharge device; 2. Fixture; 21. Fixture base; 22. Mechanism base; 221. Mechanism slot; 23. Clamping plate; 24. Clamping plate drive; 25. Double metal base; 251. Double metal slot; 252. Double metal positioning component; 26. Double metal clamping mechanism; 261. Double metal clamping rod; 2611. Double metal clamping part; 262. Double metal elastic component; 263. Double metal top head; 3. Mechanism feeding device; 4. Moving contact feeding device; 5. Wire feeding and welding device; 51. Wire frame; 52. Wire inlet frame; 53. Wire welding Mechanisms; 54. Wire cutting mechanism; 541. Wire seat; 542. Cutter; 543. Cutter transmission component; 544. Guide plate; 5441. Wire groove; 545. Wire pressure plate; 546. Connecting plate; 55. Wire clamping mechanism; 56. Wire feeding mechanism; 6. Double metal feeding device; 7. Welding device; 8. Hot riveting device; 9. Dotting device; 91. Dotting frame; 92. Dotting push component; 93. Dotting limit component; 94. Dotting component; 95. Glue application device; 951. Glue application mechanism; 101. Mechanism; 102. Moving contact; 103. Wire; 104. Double metal; A. Dots made by the dotting component on the mechanism; B. Glue application points on the moving contact; C. Imprints on the wire. Detailed Implementation

[0031] The embodiments of the present invention will be further described below with reference to the accompanying drawings: Depend on Figure 1 Combination Figure 2-14 As shown, an automated assembly device for miniature circuit breakers includes a workbench 1, and further includes: Turntable 11 is mounted on worktable 1 and rotates circumferentially relative to worktable 1; The fixture 2 is used to receive the workpiece to be processed and / or to drive the workpiece to be processed to rotate; the fixture 2 is mounted on the turntable 11 and is driven by the turntable 11 to rotate circumferentially. The movement feeding device 3 is located on the workbench 1 and on the outside of the turntable 11, and is used for feeding the movement 101. The moving contact feeding device 4 is located on the workbench 1 and on the outside of the turntable 11, and is used for feeding the moving contact 102. The wire feeding and welding device 5 is located on the workbench 1 and outside the turntable 11. It is used for feeding the wire 103 and welding the wire before feeding it. The double metal feeding device 6 is located on the workbench 1 and on the outside of the turntable 11, and is used for feeding double metal 104. Welding device 7, located on workbench 1 and outside turntable 11, is used to weld double metal to wires. A hot riveting device 8, located on the workbench 1 and outside the turntable 11, is used for hot riveting the movement, moving contact, and wire. The movement feeding device 3, moving contact feeding device 4, wire feeding and welding device 5, double-metal feeding device 6, welding device 7, and hot riveting device 8 are arranged sequentially. The beneficial effects of this invention are that by including the movement feeding device, moving contact feeding device, wire feeding and welding device, double-metal feeding device, welding device, and hot riveting device, a one-time assembly of the movement, moving contact, wire, and double-metal can be achieved. This offers advantages such as convenient processing, simple structure, small product size, reliable operation, and long service life. In practice, detection equipment can also be installed on the workbench or fixed plate, such as checking whether the movement or moving contact is set on the fixture after feeding. Of course, after automated processing, the unloading device 17 usually ensures reliable unloading of the finished product, and a unloading channel or receiving frame is typically provided. In this invention, the movement feeding device, moving contact feeding device, double metal feeding device, welding device, hot riveting device, and discharge device can all be implemented using existing technologies, and will not be elaborated here.

[0032] The present invention also includes a dotting device 9, disposed between the moving contact feeding device 4 and the wire feeding and welding device 5, for dotting the movement of the mechanism so that the moving contact is disposed on the mechanism and tightly fitted to the mechanism. Specifically, the dotting device 9 includes: The dotting device 91 is located on the workbench 1; The dotting pusher 92 is mounted on the dotting frame 91 and is used to radially and horizontally push the contact from the turntable 11 so that the moving contact moves toward the mechanism and limits the moving contact. The dot-marking limiter 93 is provided on the dot-marking frame 91 and is used to press down from above the driven contact to limit the moving contact. The dotting element 94, mounted on the dotting frame 91, is used to press down on the connection between the moving contact and the mechanism from above, causing the mechanism to deform and form an interference fit with the moving contact. In actual automated production, because the moving contact is placed in the groove of the mechanism (i.e., in the groove of the contact bracket), due to product size and processing accuracy, as well as the centrifugal force generated during turntable rotation, the moving contact is prone to slipping out of the groove, affecting subsequent product processing. When the fixture rotates to this step, the dotting device of this invention uses the dotting pusher to horizontally push the contact closer to the upper edge of the groove of the mechanism and horizontally limit it, and uses the dotting limiter to vertically limit it. The dotting element does not directly act on the moving contact to avoid affecting the performance of the moving contact. At this point, the dotting element hits point A (the dotting point on the movement) of the movement. The edge of the movement groove will be deformed by the pressure of the dotting element and squeezed into the groove of the movement to form an interference fit with the moving contact, thereby making the moving contact reliably connected to the movement.

[0033] The invention also includes a glue-applying device 95, disposed between the dotting device 9 and the wire feeding and welding device 5. The glue-applying device 95 includes a glue-applying mechanism 951 for applying glue to the moving contact on the mechanism. The glue-applying mechanism 951 has a first position during installation and a second position for applying glue to the moving contact to facilitate connection between the wire and the moving contact. The dotting pusher 92 and the dotting limiter 93 operate synchronously and both act before the dotting member 94. The dotting limiter 93 is obliquely disposed on the dotting frame 91 and presses down obliquely above the moving contact to limit its position. The glue-applying device allows glue to be applied to the protruding position (B) of the moving contact, facilitating adhesion between the wire and the feed wire. This ensures the wire reliably moves with the moving contact and the clamp. During welding between the wire and the moving contact, it avoids the need for high current to ensure reliable welding between the guide and the moving contact, preventing deformation or performance differences in other components under high temperature and high current conditions, thus making the product connection convenient and reliable.

[0034] The clamp 2 includes: The fixture base 21 is mounted on the turntable 11 and is linked to the turntable 11; The movement base 22 is disposed on the clamp base 21, and the movement base 22 is provided with a movement groove 221 for accommodating the continuing movement; The clamp 23 has a first position for opening to facilitate the placement and removal of wires and a second position for clamping wires. The clamping plate drive component 24 passes through the clamping seat 21 and is linked with the clamping seat 21. The clamping plate drive component 24 is connected to the clamping plate 23 and is used to drive the clamping plate 23 to move. A double-metal holder 25, mounted on a clamping base 21, is used to receive and move the double metal parts. The double-metal holder 25 and the clamping base 21 are detachably connected. The detachable double-metal holder can be configured with different product models as needed, resulting in a wide range of product compatibility. The movement of the clamping plates reliably holds the wires, allowing for simultaneous welding of the moving contact, wires, and double metal parts.

[0035] The dual-metal holder 25 is provided with a dual-metal groove 251 for accommodating dual-metal components. A dual-metal positioning element 252 for limiting the position of the dual-metal components is disposed within the dual-metal groove 251. The dual-metal holder 25 is provided with a dual-metal clamping mechanism 26, which includes a dual-metal clamping rod 261. The dual-metal clamping rod 261 has a first position for easy placement and removal of the dual-metal components and a second position for clamping the dual-metal components. The dual-metal positioning element can position the dual-metal components to enter, thereby facilitating reliable soldering between the wire and the dual-metal components. Of course, different products or different designs require the housing to adjust the dual-metal entry position by adjusting or replacing the dual-metal positioning piece, thus adjusting the soldering position between the dual-metal components and the wire.

[0036] The dual-gold clamping mechanism 26 includes a dual-gold elastic element 262 and a dual-gold top 263 for facilitating the pushing of the dual-gold clamping rod 261. The dual-gold elastic element 262 is sleeved on the dual-gold clamping rod 261 and abuts against the dual-gold top 263. The dual-gold elastic element 262 has a tendency to drive the dual-gold clamping rod 261 towards its second position. The dual-gold clamping rod 261 is provided with a dual-gold clamping part 2611 that cooperates with the dual-gold positioning element 252 for horizontally clamping the dual-gold components. The dual-gold clamping rod 261 is L-shaped or T-shaped. The structure of the dual-gold clamping rod can reliably clamp the dual-gold sheets, and the structure is simple, convenient, and reliable in limiting the position.

[0037] The present invention also includes: Fixed plate 12, wherein the turntable 11 is coaxially arranged with the fixed plate 12 and rotates relative to the fixed plate 12; The moving contact drive 13 is disposed on the fixed plate 12 and is used to press the moving contact from above when the moving contact is placed on the mechanism. The dual-metal drive component 14 is located on the fixed plate 12 and is used to push the dual-metal top head 263 or the dual-metal clamping rod 261 to unlock the dual-metal clamping rod 261 to facilitate dual-metal feeding. An air blowing mechanism 15 is mounted on a fixed plate 12 and is used to blow air to cool the fixture of the hot riveting process when the hot riveting device 8 is performing hot riveting. The dual-metal ejection drive unit 16, mounted on the fixed platen 12, is used to push the dual-metal mandrel 263 or the dual-metal clamping rod 261 to unlock the dual-metal clamping rod 261. This structure makes efficient use of the space on the worktable, allowing the moving contact drive unit, dual-metal drive unit, air blowing mechanism, and dual-metal ejection drive unit to operate without rotating with the turntable, thus reducing energy consumption. In practice, the moving contact drive unit is mainly pressed down during moving contact feeding (when placed in the slot of the mechanism), avoiding the problem of the moving contact not being able to fall into the slot of the mechanism due to its large processing size or small slot size. The dual-metal drive unit and the dual-metal ejection drive unit push the dual-metal mandrel (dual-metal clamping rod) to unlock during dual-metal loading and after processing, respectively, facilitating reliable loading and unloading. The air blowing mechanism usually blows air into the clamps at the hot riveting device to reduce the temperature of the parts. This ensures that the moving contacts, mechanism and wires can be reliably hot riveted, while avoiding product deformation due to excessive temperature or current, which would affect product performance.

[0038] The wire feeding and welding device 5 includes: The wire guide frame 51 is used to hold the wire to be fed. Cable tray 52 is used for cable entry; The wire welding mechanism 53 is used to weld knots onto the wires; The wire cutting mechanism 54 includes a wire seat 541 and a cutter 542; the wire seat 541 is provided with a cutter drive member 543, which is connected to the cutter 542 and is used to drive the cutter 542 to cut the wire. The conductor clamping mechanism 55 is used to clamp the conductor and pull the conductor forward. The wire feeding mechanism 56 is used to clamp the cut wire and place it above the moving contact plate. The C-shaped joints on the wire can reliably weld multiple twisted C-shaped joints together, preventing the wire from scattering after being cut. This structure ensures reliable wire feeding. Specifically, the wire frame, wire feeder, wire welding mechanism, wire cutting mechanism, and wire clamping mechanism can be arranged in a long strip, with the wire feeding mechanism clamping and feeding the wire, making efficient use of the space on the workbench.

[0039] The wire holder 541 is equipped with a guide plate 544, within which a wire clamping plate 545 is provided for holding the wire. The guide plate 544 also has a wire groove 5441 for the wire to pass through. There are two cutting drive components 543, connected by a connecting plate 546 hinged to the wire holder 541. The two cutting drive components 543 are located within the wire holder 541 and are limited by it, thus achieving vertical movement relative to the wire holder 541. This structure allows the cutting drive components to reliably drive the cutting blade vertically, facilitating rapid wire cutting, continuous product processing, and features a simple structure and convenient and reliable transmission. The wire groove facilitates rapid and continuous wire feeding. Typically, the wire can be clamped by the wire clamping mechanism and pulled out of the wire groove for easy cutting by the cutting blade.

[0040] In the description of this invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0041] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. Furthermore, in the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0042] Please note to all technical personnel: Although the present invention has been described according to the specific embodiments above, the inventive concept of the present invention is not limited to this invention. Any modifications that utilize the inventive concept will be included within the scope of protection of the patent rights of the present invention.

Claims

1. An automatic assembly device for miniature circuit breakers, comprising a workbench (1), characterized in that: Also includes: A turntable (11) is mounted on a workbench (1) and rotates circumferentially relative to the workbench (1); The fixture (2) is used to receive the workpiece to be processed and / or to drive the workpiece to be processed to rotate; the fixture (2) is mounted on the turntable (11) and is driven to rotate by the turntable (11) in a circumferential direction. The mechanism feeding device (3) is located on the workbench (1) and on the outside of the turntable (11) for feeding the mechanism; The moving contact feeding device (4) is located on the workbench (1) and on the outside of the turntable (11) for feeding moving contacts; The wire feeding and welding device (5) is located on the workbench (1) and outside the turntable (11). It is used for feeding wires and welding wires before feeding them. The double metal feeding device (6) is located on the workbench (1) and on the outside of the turntable (11) for feeding double metal. Welding device (7), located on workbench (1) and outside turntable (11), is used to weld double metal to wire; The hot riveting device (8) is set on the workbench (1) and on the outside of the turntable (11) for hot riveting the mechanism, moving contact and wire; the mechanism feeding device (3), moving contact feeding device (4), wire feeding and welding device (5), double metal feeding device (6), welding device (7) and hot riveting device (8) are set in sequence. The clamp (2) includes: The fixture base (21) is located on the turntable (11) and is linked to the turntable (11); The movement base (22) is provided on the clamp base (21), and the movement base (22) is provided with a movement groove (221) for accommodating the continuing movement. The clamp (23) has a first position for opening to facilitate the placement and removal of wires and a second position for clamping wires; The clamping plate drive (24) passes through the clamping seat (21) and is linked with the clamping seat (21). The clamping plate drive (24) is connected to the clamping plate (23) and is used to drive the clamping plate (23) to move. A double gold base (25) is provided on a clamp base (21) for receiving double gold and driving the double gold to move. The double gold base (25) and the clamp base (21) are detachably connected. The double gold base (25) is provided with a double gold groove (251) for accommodating the double gold. A double gold positioning member (252) for limiting the double gold is provided in the double gold groove (251). The double gold base (25) is provided with a double gold clamping mechanism (26). The double gold clamping mechanism (26) includes a double gold clamping rod (261). The double gold clamping rod (261) has a first position for opening to facilitate the picking and placing of double gold and a second position for clamping double gold. The double metal clamping mechanism (26) includes a double metal elastic element (262) and a double metal head (263) for facilitating the pushing of the double metal clamping rod (261). The double metal elastic element (262) is sleeved on the double metal clamping rod (261) and abuts against the double metal head (263). The double metal elastic element (262) has a tendency to drive the double metal clamping rod (261) to its second position. The double metal clamping rod (261) is provided with a double metal clamping part (2611) that cooperates with the double metal positioning element (252) for horizontally clamping the double metal. The double metal clamping rod (261) is L-shaped or T-shaped.

2. The automatic assembly equipment for a miniature circuit breaker according to claim 1, characterized in that... It also includes a dotting device (9), which is located between the moving contact feeding device (4) and the wire feeding and welding device (5) for dotting the mechanism so that the moving contact is located on the mechanism and fits tightly with the mechanism.

3. The automatic assembly equipment for a miniature circuit breaker according to claim 2, characterized in that... The dotting device (9) includes: A dotting rack (91) is placed on a workbench (1); The dotting pusher (92) is provided on the dotting frame (91) and is used to push the contact radially and horizontally from the turntable (11) so that the moving contact moves toward the mechanism and limits the moving contact; A dotting limiter (93) is provided on the dotting frame (91) and is used to press down above the driven contact to limit the moving contact; The dotting component (94) is located on the dotting frame (91) and is used to press down on the connection between the moving contact and the moving contact from above, so that the deformation of the moving contact and the moving contact form an interference fit.

4. The automatic assembly equipment for a miniature circuit breaker according to claim 3, characterized in that... It also includes a glue applicator (95), which is located between the dotting device (9) and the wire feeding and welding device (5); the glue applicator (95) includes a glue applicator mechanism (951) for applying glue to the moving contact on the mechanism, the glue applicator mechanism (951) has a first position during installation and a second position for applying glue to the moving contact to facilitate the connection between the wire and the moving contact; the dotting pusher (92) and the dotting limiter (93) move synchronously and both move before the dotting device (94), the dotting limiter (93) is obliquely arranged on the dotting frame (91) and presses down obliquely above the moving contact to limit the moving contact.

5. The automatic assembly equipment for a miniature circuit breaker according to claim 1, characterized in that... Also includes: The fixed plate (12) is coaxially arranged with the turntable (11) and the fixed plate (12) and rotates relative to the fixed plate (12); The moving contact drive (13) is provided on the fixed plate (12) and is used to press the moving contact from above when the moving contact is placed on the mechanism; The dual-metal drive unit (14) is located on the fixed plate (12) and is used to push the dual-metal top head (263) or the dual-metal clamping rod (261) to unlock the dual-metal clamping rod (261) for easy dual-metal feeding. An air blowing mechanism (15) is provided on a fixed plate (12) for blowing air to cool the fixture of the hot riveting process during the hot riveting process performed by the hot riveting device (8); The double metal discharge drive (16) is located on the fixed plate (12) and is used to push the double metal top head (263) or the double metal clamping rod (261) to unlock the double metal clamping rod (261).

6. The automatic assembly equipment for a miniature circuit breaker according to claim 1, characterized in that... The wire feeding and welding device (5) includes: A wire guide frame (51) is used to hold the wire to be fed; Cable tray (52) is used for cable entry; A wire welding mechanism (53) is used to weld knots onto wires; The wire cutting mechanism (54) includes a wire seat (541) and a cutter (542); the wire seat (541) is provided with a cutter drive (543), which is connected to the cutter (542) and is used to drive the cutter (542) to cut the wire; The conductor clamping mechanism (55) is used to clamp the conductor and pull the conductor forward; The wire feeding mechanism (56) is used to clamp the cut wire and place it above the moving contact plate.

7. The automatic assembly equipment for a miniature circuit breaker according to claim 6, characterized in that... The wire seat (541) is provided with a guide plate (544), and the guide plate (544) is provided with a wire pressing plate (545) for pressing the wire. The guide plate (544) is provided with a wire groove (5441) for the wire to pass through. There are two cutting drive members (543), and the two cutting drive members (543) are connected by a connecting plate (546). The connecting plate (546) is hinged to the wire seat (541). The two cutting drive members (543) are located in the wire seat (541) and are limited by the wire seat (541) to realize their vertical movement relative to the wire seat (541).

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