An assembly device for a circuit breaker thermal system component

Abstract

The present invention discloses an assembly device for a circuit breaker thermal system component, which includes a movement core assembly unit, a bimetal sheet assembly unit, an attitude transformation unit, a wiring board component assembly unit, and a three-in-one welding unit. The movement core assembly unit includes an annular movement device, a plurality of seats installed on the annular movement device, and a lever one assembly mechanism, a lever two assembly mechanism, a spring assembly mechanism, a fitting assembly mechanism, a contact support assembly mechanism, and a torsion spring assembly mechanism arranged in sequence along the movement direction of the annular movement device. The bimetal sheet assembly unit includes a moving contact assembly mechanism, a flexible connection piece assembly mechanism, a flexible connection piece connection mechanism, a bimetal sheet assembly mechanism, and a bimetal sheet connection mechanism. The attitude transformation unit includes an attitude transformation mechanism and a conveying mechanism. The structure of the present invention is reasonably designed, capable of automatically assembling the thermal system components with high assembly efficiency and good assembly quality.

Description

Technical Field

[0001] The present invention relates to the technical field of circuit breaker assembly, and more specifically, to an assembly device for a thermal system component of a circuit breaker. Background Art

[0002] The thermal system components of a circuit breaker, such as Figure 1 and Figure 2 as shown, generally include a first lever, a second lever, a fitting, a contact support, a spring, a torsion spring, a moving contact, a bimetal strip, an arcing piece, a connecting piece, a terminal block, and a terminal frame. Among them, the moving contact and the bimetal strip are connected by a flexible connecting piece (not shown in the figure). However, the existing assembly equipment for thermal system components usually adopts the method of assembling single parts one by one, with complex assembly processes and procedures, low assembly efficiency, poor assembly quality, and low assembly accuracy. Summary of the Invention

[0003] The present invention overcomes the deficiencies of the prior art and provides an assembly device for a thermal system component of a circuit breaker, which has a reasonable structural design, can perform automatic assembly on the thermal system component, and has high assembly efficiency and good assembly quality.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] An assembly device for a thermal system component of a circuit breaker includes a core assembly unit, a bimetal strip assembly unit, an attitude transformation unit, a terminal block component assembly unit, and a three-in-one welding unit. The core assembly unit includes an annular moving device, a plurality of seats installed on the annular moving device, and a first lever assembly mechanism, a second lever assembly mechanism, a spring assembly mechanism, a fitting assembly mechanism, a contact support assembly mechanism, and a torsion spring assembly mechanism arranged in sequence along the moving direction of the annular moving device. The bimetal strip assembly unit includes a moving contact assembly mechanism, a flexible connecting piece assembly mechanism, a flexible connecting piece connecting mechanism, a bimetal strip assembly mechanism, and a bimetal strip connecting mechanism. The attitude transformation unit includes an attitude transformation mechanism and a conveying mechanism. The terminal block component assembly unit includes a terminal block assembly mechanism, a connecting piece assembly mechanism, a terminal block connecting mechanism, a terminal frame assembly mechanism, and a terminal frame connecting mechanism. The three-in-one welding unit includes a core transfer mechanism, a terminal frame component assembly mechanism, an arcing piece assembly mechanism, and a three-in-one welding mechanism.

[0006] Preferably, the torsion spring assembly mechanism includes a fixed seat with a limit block, a rotating rod rotatably passing through the fixed seat and capable of positioning the torsion spring, a stop block linked with the rotating rod, and a sleeve sleeved on the rotating rod and capable of moving. The limit block and the stop block respectively abut against both ends of the torsion spring. After the torsion spring is positioned by the rotating rod and rotates and stores energy with the stop block, it drives the sleeve to move close to the torsion spring to push the torsion spring into a compatible component for assembly.

[0007] Preferably, the kit is connected with a connecting plate. A guide post passing through the fixed seat is arranged on the connecting plate. A matching guide sleeve is arranged in the fixed seat. The guide post is connected with a push plate, and the push plate is connected with the first pushing cylinder; the rotating rod is connected with a hinge block, the hinge block is hinged with a hinge seat, and the hinge seat is connected with a push-rotating cylinder; a torsion spring is sleeved on the rotating rod and positioned by the rotating rod; the fixed seat is movably arranged in the horizontal and vertical directions.

[0008] Preferably, the attitude transformation mechanism includes a support block that can be translated and rotated. First and second limit posts for limiting the rotation position of the support block are arranged on both sides of the support block. A pressure rod is arranged above the support block, and a clamping component is arranged on one side of the support block.

[0009] Preferably, the clamping component includes a translatable clamping mounting frame. A clamping block is rotatably arranged on the clamping mounting frame, and a clamping jaw is arranged on the clamping block; a second pushing cylinder is arranged on one side of the mounting frame. The second pushing cylinder is rotatably connected with a rotating block through a cylinder joint. A rotating rod connected with the rotating block is rotatably arranged through the mounting frame. The rotating rod is connected with a first mounting block, and the clamping block is arranged on the first mounting block; the support block is connected with a rotating shaft, the rotating shaft is rotatably arranged on the mounting seat, the first and second limit posts are arranged on the mounting seat, and a cylinder and a rack and pinion mechanism are arranged on one side of the mounting seat; a pressure block is arranged on the support block, and the pressure rod is telescopically movably arranged through the pressure block.

[0010] Preferably, the three-in-one welding mechanism includes a fixture for positioning and supporting an arc starting piece, a bimetal piece, and a wiring board. An installation table is arranged on one side of the fixture. A sliding seat that can move closer to or away from the fixture is arranged on the installation table. Two positioning rods that can move relatively or away from each other are arranged at one end of the sliding seat close to the fixture. The two positioning rods form clamping jaws for positioning the end parts of the joints of the arc starting piece, the bimetal piece, and the wiring board. After the two positioning rods clamp and position the arc starting piece, the bimetal piece, and the wiring board, there is a gap between the two positioning rods. A welding rod that can move closer to or away from the fixture is arranged on the sliding seat, and the welding rod has a welding head that can pass through and is located in the gap.

[0011] Preferably, a sliding block is arranged on the sliding seat. The sliding block is connected with a second mounting block for installing the positioning rod. An inclined slot is arranged on the second mounting block. A roller located in the inclined slot is arranged on the sliding block. The second mounting block moves in a direction perpendicular to the movement of the sliding block through a guide rail and slider structure; the positioning rod is obliquely arranged on the second mounting block, and an installation slot for supporting the positioning rod is arranged on the second mounting block; a side positioning rod is arranged above the side of the fixture, and a positioning top block is arranged below the fixture.

[0012] Advantages of the present invention:

[0013] The structure of the present invention is reasonably designed, can perform automatic assembly on heat system components, has high assembly efficiency and good assembly quality. Description of the Drawings

[0014] Figure 1 Schematic diagram of the structure of an existing thermal system component Figure 1 ;

[0015] Figure 2 Schematic diagram of the structure of an existing thermal system component Figure 2 ;

[0016] Figure 3 Schematic diagram of the structure of a specific embodiment of the present invention;

[0017] Figure 4 Schematic diagram of the structure of the movement assembly unit reflected in a specific embodiment of the present invention;

[0018] Figure 5 Schematic diagram of the structure of the bimetal sheet assembly unit reflected in a specific embodiment of the present invention;

[0019] Figure 6 Schematic diagram of the structure of the attitude transformation unit reflected in a specific embodiment of the present invention;

[0020] Figure 7 Schematic diagram of a part of the structure of the terminal block component assembly unit reflected in a specific embodiment of the present invention;

[0021] Figure 8 Schematic diagram of another part of the structure of the terminal block component assembly unit reflected in a specific embodiment of the present invention;

[0022] Figure 9 Schematic diagram of the structure of the three-in-one welding unit reflected in a specific embodiment of the present invention;

[0023] Figure 10 Schematic diagram of the structure of the torsion spring assembly mechanism reflected in a specific embodiment of the present invention;

[0024] Figure 11 is Figure 10 The enlarged view at X in;

[0025] Figure 12 Schematic diagram of the partial structure of a specific embodiment of the present invention;

[0026] Figure 13 is Figure 12 The enlarged view at Y in;

[0027] Figure 14 Schematic diagram of the structure of the attitude transformation mechanism reflected in a specific embodiment of the present invention;

[0028] Figure 15 Schematic diagram of the partial structure of the attitude transformation mechanism of a specific embodiment of the present invention;

[0029] Figure 16Schematic structural diagram of the material clamping component reflected by a specific embodiment of the present invention Figure 1 ;

[0030] Figure 17 Schematic structural diagram of the material clamping component reflected by a specific embodiment of the present invention Figure 2 ;

[0031] Figure 18 Schematic structural diagram of the three-in-one welding mechanism reflected by a specific embodiment of the present invention;

[0032] Figure 19 Schematic structural diagram of the positioning rod reflected by a specific embodiment of the present invention;

[0033] Figure 20 Figure 19 Enlarged view at position Z in

[0034] Figure 21 Schematic structural diagram of the mounting table reflected by a specific embodiment of the present invention;

[0035] Figure 22 Schematic structural diagram of the side positioning rod and the positioning top block reflected by a specific embodiment of the present invention.

[0036] In the figure: a, the first lever; b, the second lever; c, the fitting; d, the contact support; e, the spring; f, the torsion spring; g, the moving contact; h, the bimetallic strip; i, the arcing piece; j, the connecting piece; k, the terminal block; l, the terminal frame; A, the movement core assembly unit; A1, the annular movement device; A2, the bearing seat; A3, the first lever assembly mechanism; A4, the second lever assembly mechanism; A5, the spring assembly mechanism; A6, the fitting assembly mechanism; A7, the contact support assembly mechanism; A8, the torsion spring assembly mechanism; A81, the fixed seat; A811, the limit block; A82, the rotating rod; A83, the stop block; A84, the kit; A85, the connecting plate; A851, the guide post; A852, the guide sleeve; A853, the push plate; A854, the first push cylinder; A86, the hinge block; A861, the hinge seat; A862, the push-rotation cylinder; B, the bimetallic strip assembly unit; B1, the moving contact assembly mechanism; B2, the flexible connecting piece assembly mechanism; B3, the bimetallic strip assembly mechanism; B4, the bimetallic strip connecting mechanism; C, the attitude transformation unit; C1, the attitude transformation mechanism; C11, the support block; C111, the rotating shaft; C112, the mounting seat; C113, the cylinder; C114, the gear-rack mechanism; C12, the first limit post; C121, the second limit post; C13, the pressure rod; C131, the pressure block; C14, the clamping component; C141, the clamping mounting frame; C142, the clamping block; C143, the clamping jaw; C144, the second push cylinder; C145, the rotating block; C146, the rotating rod; C147, the first mounting block; C2, the conveying mechanism; D, the terminal block component assembly unit; D1, the terminal block assembly mechanism; D2, the connecting piece assembly mechanism; D3, the terminal block connecting mechanism; D4, the terminal frame assembly mechanism; D5, the terminal frame connecting mechanism; E, the three-in-one welding unit; E1, the movement core transfer mechanism; E2, the terminal frame component assembly mechanism; E3, the arcing piece assembly mechanism; E4, the three-in-one welding mechanism; E41, the fixture; E411, the side positioning rod; E412, the positioning top block; E42, the mounting table; E43, the sliding seat; E44, the positioning rod; E441, the gap; E45, the welding rod; E451, the welding head; E46, the sliding block; E461, the roller; E47, the second mounting block; E471, the inclined slot; E472, the mounting slot. Embodiment

[0037] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0038] As Figure 1 - 22As shown, a circuit breaker thermal system component assembly device includes a movement assembly unit A, a bimetal assembly unit B, a posture change unit C, a terminal block component assembly unit D and a three-in-one welding unit E. The movement assembly unit A includes an annular moving device A1, a plurality of seats A2 installed on the annular moving device A1, and a lever first assembly mechanism A3, a lever second assembly mechanism A4, a spring assembly mechanism A5, an assembly part assembly mechanism A6, a contact support assembly mechanism A7, and a torsion spring assembly mechanism A8 arranged in sequence along the moving direction of the annular moving device A1. The bimetal assembly unit B includes a moving contact assembly mechanism B1, a soft connector assembly mechanism B2, a soft connector connection mechanism, a bimetal assembly mechanism The torsion spring assembly mechanism A8 comprises a fixing seat A81 with a limit block A811, a rotating rod A82 which is rotatably arranged on the fixing seat A81 and can position the torsion spring f, a stopper A83 which is arranged in linkage with the rotating rod A82, and a sleeve. A kit A84 is movably arranged on the rotating rod A82, and the limit block A811 and the stop block A83 are respectively in contact with the two ends of the torsion spring f. After the torsion spring f is positioned by the rotating rod A82 and rotates with the stop block A83 to accumulate force, the driving kit A84 moves close to the torsion spring f to push the torsion spring f to be assembled into the corresponding component; the kit A84 is connected to the connecting plate A85, and the connecting plate A85 is provided with a guide column A851 passing through the fixed seat A81, and the fixed seat A81 is provided with a matching guide sleeve A852, and the guide column A851 is connected to the push plate A853, and the push plate A853 is connected to the first push cylinder A854; the rotating rod A82 is connected to the hinge block A86, and the hinge block A86 is hinged to the hinge seat A861, and the hinge seat A861 is connected to the hinge seat A862. 61 is connected with a push-rotating cylinder A862; a torsion spring f is sleeved on the rotating rod A82 and positioned by the rotating rod A82; a fixed seat A81 can be moved in the horizontal and vertical directions; the posture change mechanism C1 includes a support block C11 that can be translated and rotated, and a first limiting column C12 and a second limiting column C121 that can limit the rotation position of the support block C11 are arranged on both sides of the support block C11, a pressing rod C13 is arranged above the support block C11, and a clamping assembly C14 is arranged on one side of the support block C11; the clamping assembly C14 includes a clamping mounting frame C141 that can be translated, a clamping block C142 is rotatably arranged on the clamping mounting frame C141, and a clamping claw C143 is arranged on the clamping block C142;On one side of the mounting bracket, there is a second pushing cylinder C144. The second pushing cylinder C144 is rotatably connected to a rotating block C145 through a cylinder joint. A rotating rod C146 connected to the rotating block C145 is rotatably passed through the mounting bracket. The rotating rod C146 is connected to a first mounting block C147, and a clamping block C142 is arranged on the first mounting block C147; A support block C11 is connected to a rotating shaft C111, and the rotating shaft C111 is rotatably arranged on a mounting seat C112. A first limiting post C12 and a second limiting post C121 are arranged on the mounting seat C112. On one side of the mounting seat C112, there is a cylinder C113 and a rack and pinion mechanism C114; A pressing block C131 is arranged on the support block C11, and a pressing rod C13 is telescopically movably passed through the pressing block C131; The three-in-one welding mechanism E4 includes a fixture E41 for positioning and supporting the arc striking piece i, the bimetallic piece h, and the wiring board k. On one side of the fixture E41, there is an installation table E42. On the installation table E42, there is a sliding seat E43 that can move closer to or away from the fixture E41. At one end of the sliding seat E43 close to the fixture E41, there are two positioning rods E44 that can move relative to or away from each other. The two positioning rods E44 form a clamping jaw C143 that can position the ends of the joints of the arc striking piece i, the bimetallic piece h, and the wiring board k. After the two positioning rods E44 clamp and position the arc striking piece i, the bimetallic piece h, and the wiring board k, there is a gap E441 between the two positioning rods E44. On the sliding seat E43, there is a welding rod E45 that can move closer to or away from the fixture E41. The welding rod E45 has a welding head E451 that can pass through and is located in the gap E441; There is a sliding block E46 on the sliding seat E43. The sliding block E46 is connected to a second mounting block E47 for installing the positioning rod E44. There is an inclined groove E471 on the second mounting block E47. There is a roller E461 on the sliding block E46 located in the inclined groove E471. The second mounting block E47 moves in a direction perpendicular to the movement of the sliding block E46 through a guide rail and slider structure; The positioning rod E44 is obliquely arranged on the second mounting block E47. There is an installation groove E472 for supporting the positioning rod E44 on the second mounting block E47; There is a side positioning rod E411 above the side of the fixture E41, and a positioning top block E412 is arranged below the fixture E41.;

[0039] By adopting the above technical solutions, in the specific implementation of the present invention, the movement assembly unit A can assemble the lever a, the lever b, the fitting c, the contact support d, the spring e, and the torsion spring f. Among them, in the torsion spring f assembly mechanism, the limiting block A811 is stationary, and the stop block A83 can rotate. Thus, when the pushing cylinder A862 pushes the rotating rod A82 to rotate, the stop block A83 rotates accordingly and compresses the torsion spring f to store energy. Then, the guide post A851 is driven to move by the first pushing cylinder A854, so that the kit A84 moves downward, thereby pushing the torsion spring f away from the rotating rod A82 and enabling the torsion spring f to be assembled into the matching component.

[0040] Then, in the bimetal assembly unit B, first, the moving contact g and the flexible connecting piece are assembled, and then the two are connected, specifically by hot riveting. Then, the bimetal h is assembled, and then the bimetal h is connected to the above two, which can also be hot riveting. In the attitude transformation mechanism C1, the support block C11 is used to position and support the component, and the clamping component C14 can clamp and position one end of the component, and the clamping jaw C143 can swing within a certain range. The support block C11 is rotatably arranged, specifically realized by the cylinder C113, the rack and pinion mechanism C114, and the rotating shaft C111 for the rotation of the support block C11. The first limit block A811 and the second limit block A811 can limit the rotation position of the support block C11. The pressure rod C13 is telescopically arranged, and extends out when pressing is required for pressing and positioning. In this way, the rotation and movement of the component on the support block C11 can be realized. Combining with the swing and movement of the clamping component C14, the attitude transformation adjustment of the component can be realized to meet the assembly positioning of the next process. Then, in the terminal block component assembly unit D, mainly the terminal block k and the connecting piece j are connected, and then the terminal frame l is connected to the terminal block k.

[0041] In the three-in-one welding mechanism E4, the arc striking piece i, the bimetal h, and the terminal block k are supported and positioned by the fixture E41. Then, the connection parts of the above three are clamped and positioned by the positioning rod E44. After that, the above three are welded together by the welding head E451. By setting the second mounting block E47, the sliding block E46, the inclined groove E471, the roller E461, and the guide rail slider structure, the movement of the positioning rod E44 can be realized by moving the sliding block E46, that is, the relative or opposite movement of the two positioning rods E44 can be realized. Through the gap E441 formed between the two positioning rods E44, the welding head E451 can pass through smoothly for welding operations. The setting of the side positioning rod E411 and the positioning top block E412 can also realize the positioning of the arc striking piece i, the bimetal h, and the terminal block k, making the positioning effect better and the welding quality better.

[0042] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. An assembly device for a circuit breaker thermal system component, characterized in that, It includes a movement assembly unit, a bimetal assembly unit, an attitude transformation unit, a terminal block component assembly unit, and a three-in-one welding unit. The movement assembly unit includes an annular moving device, a plurality of seats mounted on the annular moving device, and a lever one assembly mechanism, a lever two assembly mechanism, a spring assembly mechanism, a fitting assembly mechanism, a contact support assembly mechanism, and a torsion spring assembly mechanism arranged in sequence along the moving direction of the annular moving device. The bimetal assembly unit includes a moving contact assembly mechanism, a flexible connection assembly mechanism, a flexible connection mechanism, a bimetal assembly mechanism, and a bimetal connection mechanism. The attitude transformation unit includes an attitude transformation mechanism and a conveying mechanism. The terminal block component assembly unit includes a terminal block assembly mechanism, a connecting piece assembly mechanism, a terminal block connection mechanism, a terminal frame assembly mechanism, and a terminal frame connection mechanism. The three-in-one welding unit includes a movement transfer mechanism for the movement, a terminal frame assembly mechanism, an arc striking piece assembly mechanism, and a three-in-one welding mechanism; The torsion spring assembly mechanism includes a fixed seat with a limit block, a rotating rod rotatably passing through the fixed seat and capable of positioning the torsion spring, a stop block linked with the rotating rod, and a sleeve sleeved on the rotating rod and capable of moving. The limit block and the stop block respectively abut against both ends of the torsion spring. After the torsion spring is positioned by the rotating rod and rotates and stores energy with the stop block, it drives the sleeve to move close to the torsion spring to push the torsion spring to be assembled into a matching component; The sleeve is connected with a connecting plate. A guide post passing through the fixed seat is arranged on the connecting plate. A matching guide sleeve is arranged in the fixed seat. The guide post is connected with a push plate, and the push plate is connected with a first push cylinder; the rotating rod is connected with a hinge block, the hinge block is hinged with a hinge seat, and the hinge seat is connected with a push-rotate cylinder; the torsion spring is sleeved on the rotating rod and positioned by the rotating rod; the fixed seat can be moved horizontally and vertically; The three-in-one welding mechanism includes a fixture for positioning and supporting the arc striking piece, the bimetal, and the terminal block. An installation table is arranged on one side of the fixture. A sliding seat capable of moving close to or away from the fixture is arranged on the installation table. Two positioning rods capable of moving relatively or away from each other are arranged at one end of the sliding seat close to the fixture. The two positioning rods form a clamping jaw capable of positioning the ends of the connection parts of the arc striking piece, the bimetal, and the terminal block. After the two positioning rods clamp and position the arc striking piece, the bimetal, and the terminal block, there is a gap between the two positioning rods. A welding rod capable of moving close to or away from the fixture is arranged on the sliding seat. The welding rod has a welding head capable of passing through and located in the gap.

2. The assembly device for a circuit breaker thermal system component according to claim 1, wherein The attitude transformation mechanism includes a support block capable of translating and rotating. A first limit post and a second limit post capable of limiting the rotating position of the support block are arranged on both sides of the support block. A pressing rod is arranged above the support block. A clamping component is arranged on one side of the support block.

3. The assembly device of a circuit breaker thermal system component according to claim 2, characterized in that, The material clamping assembly includes a material clamping mounting bracket capable of translation. A material clamping block is rotatably arranged on the material clamping mounting bracket, and clamping jaws are provided on the material clamping block. A pushing cylinder is arranged on one side of the mounting bracket. The second pushing cylinder is rotatably connected to a rotating block through a cylinder joint. A rotating rod connected to the rotating block is rotatably penetrated through the mounting bracket. The rotating rod is connected to a first mounting block, and the material clamping block is arranged on the mounting block. The support block is connected with a rotating shaft, and the rotating shaft is rotatably arranged on the mounting seat. The first limiting column and the second limiting column are arranged on the mounting seat. A cylinder and a rack and pinion mechanism are arranged on one side of the mounting seat. A pressure material block is arranged on the support block, and a pressure material rod is telescopically movably penetrated through the pressure material block.

4. The assembly device for a circuit breaker thermal system component according to claim 1, characterized in that, A sliding block is arranged on the sliding seat. The sliding block is connected with a second mounting block for mounting a positioning rod. An inclined slot is provided on the second mounting block. A roller located in the inclined slot is provided on the sliding block. The second mounting block moves in a direction perpendicular to the movement direction of the sliding block through a guide rail and slider structure. The positioning rod is obliquely arranged on the second mounting block. An installation slot for supporting the positioning rod is provided on the second mounting block. A side positioning rod is arranged above the side of the fixture, and a positioning top block is arranged below the fixture.

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