A multi-station high-precision molded case circuit breaker production method

Abstract

The present invention discloses a multi-station high-precision molded case circuit breaker production method, including assembly equipment, the assembly equipment includes a support table, and a plurality of stations are arranged on the support table, each of the stations is respectively provided with a limited conveying mechanism, a limiting mechanism, a pushing mechanism and a feeding mechanism, a conveyor belt is arranged between the limiting mechanism and the pushing mechanism, and the pushing mechanism includes an extended gas rod; the limiting conveying mechanism includes an upper limit frame and a lower limit frame, the lower limit frame is fixed on the support table, the outer walls of the upper limit frame on both sides facing each other are respectively fixedly connected with slide rails, and each slide rail is movably connected with a slider, and the outer walls of the two sliders on the opposite sides are respectively fixedly connected with side support rods. The multi-station high-precision molded case circuit breaker production method disclosed by the present invention has the advantages that the alignment of the upper and lower workpieces can be completed by a simple structure, which can effectively improve the work efficiency while avoiding the effect of the upper and lower workpiece alignment errors reducing the quality of the finished product.

Description

Technical Field

[0001] The invention relates to the technical field of molded case circuit breaker production, and in particular to a multi-station high-precision molded case circuit breaker production method. Background Art

[0002] Molded case circuit breakers are also called device-type circuit breakers. All parts are sealed in a plastic shell. Auxiliary contacts, undervoltage releases, and shunt releases are mostly modular. Due to the very compact structure, molded case circuit breakers are basically impossible to repair. They are mostly manually operated, and large capacity can be selected for electric opening and closing.

[0003] In small-scale factories with limited costs and unable to support fully automatic production lines for molded case circuit breakers, when assembling molded case circuit breakers, the upper and lower workpieces are mostly aligned manually before screwing them in. In this assembly process, while efficiency is not improved, the upper and lower workpieces may also shift, affecting the quality of the finished product. Summary of the invention

[0004] The invention discloses a multi-station high-precision molded case circuit breaker production method, which aims to solve the technical problem that in the process of manually aligning upper and lower workpieces and then assembling screws, the efficiency cannot be improved and the displacement of the upper and lower workpieces may be caused, thereby affecting the quality of the finished product.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A multi-station high-precision molded case circuit breaker production method includes assembly equipment, the assembly equipment includes a support table, and a plurality of stations are arranged on the support table, each of the stations is respectively provided with a limited conveying mechanism, a limiting mechanism, a pushing mechanism and a feeding mechanism, a conveyor belt is arranged between the limiting mechanism and the pushing mechanism, and the pushing mechanism includes an extended gas rod; the limited conveying mechanism includes an upper limit frame and a lower limit frame, the lower limit frame is fixed on the support table, the outer walls of the upper limit frame on both sides facing each other are respectively fixedly connected with slide rails, and each slide rail is movably connected with a slider, the outer walls of the two sliders on the opposite sides are respectively fixedly connected with side support rods, and the two side support rods are connected through a support shaft, one end of the support shaft is movably connected in a first bearing seat, and is connected to a servo motor, and the support shafts of two adjacent stations are connected to each other. The locking plate is connected to the bottom surface of the locking plate, and the locking plate is fixedly secured to the bottom surface of the locking plate, wherein the locking plate is secured on a slitting pad to the left of the locking plate and the locking cam.

[0007] By setting up a limited conveying mechanism, the upper and lower workpieces can be pushed into the upper limit frame and the lower limit frame respectively by the extended gas rod in the pushing mechanism, and the positions of the upper and lower workpieces are limited by the two. When the servo motor rotates, the upper limit frame can be driven to move downward, so that the upper limit frame and the lower limit frame are stacked, and the first bottom plate becomes a vertical state under the movement of the upper limit frame, thereby realizing the limit in another direction. Therefore, during the transmission of the upper and lower workpieces, the alignment of the upper and lower workpieces can be completed through a simple structure, which can effectively improve the work efficiency while avoiding the alignment errors of the upper and lower workpieces that reduce the quality of the finished product.

[0008] In a preferred solution, the inner diameters of the upper guide groove and the lower guide groove are arranged to decrease from front to back, and side brackets are fixedly connected to both sides of the upper guide groove and the lower guide groove, and the side brackets are fixed on the support table; the limiting mechanism also includes a first support and a second support, the first support is provided with a guide slide groove, and the inner diameter of the guide slide groove is arranged to increase from top to bottom, and a longitudinal slider is provided on the outer wall of one side of the second support, the longitudinal slider is movably connected in the guide slide groove, and its outer diameter is equal to the inner diameter of the guide slide groove.

[0009] By setting a limit mechanism, in which the upper guide groove and the lower guide groove are set, the workpiece can be pushed into the upper limit frame and the lower limit frame smoothly and accurately. At the same time, under the action of the guide groove, the accuracy of the upper limit frame reset position can be further guaranteed to ensure that the workpiece can be smoothly fitted with the upper limit frame during the pushing process.

[0010] In a preferred solution, a storage box is provided under each of the workstations, the unloading mechanism comprises a plurality of second bottom plates, the second bottom plates are connected to the top inner wall of the support table by hinges, and the second bottom plates are attached to the bottom end of the lower limit frame, the bottom outer wall of the second bottom plates is connected to a second gas rod by a first hinge seat, and one end of the second gas rod is connected to one side of the support table by a second hinge seat, and one side of the second gas rod is connected to a foot switch by an electric wire;

[0011] A multi-station high-precision molded case circuit breaker production method comprises the following specific steps:

[0012] S1: conveying the upper and lower workpieces of the molded case circuit breaker at intervals on the conveyor belt;

[0013] S2: When the number of workpieces on the conveyor belt reaches the number that matches the workstation, the upper and lower workpieces are pushed into the upper limit frame and the lower limit frame respectively through the pushing mechanism;

[0014] S3: The servo motor rotates to drive the upper limit frame and the lower limit frame to merge, limit the positions of the upper and lower workpieces, and the upper workpiece is stacked on top of the lower workpiece;

[0015] S4: assembly screw;

[0016] S5: Step on the foot switch to complete unloading.

[0017] By providing a unloading mechanism, when the assembly of the screws is completed, the bottom unloading position of the lower limit frame is reserved by stepping on the foot switch, and the assembled workpiece can be directly dropped into the storage box through the unloading position for storage. Under this structure, unloading can be assisted to avoid the workers' re-turnover, thereby reducing the difficulty of operation and optimizing the operation steps.

[0018] From the above, it can be seen that a multi-station high-precision molded case circuit breaker production method includes assembly equipment, the assembly equipment includes a support table, and a plurality of stations are arranged on the support table, each of the stations is respectively provided with a limited conveying mechanism, a limiting mechanism, a pushing mechanism and a feeding mechanism, a conveyor belt is arranged between the limiting mechanism and the pushing mechanism, and the pushing mechanism includes an extended gas rod; the limiting conveying mechanism includes an upper limit frame and a lower limit frame, the lower limit frame is fixed on the support table, the outer walls of the upper limit frame on both sides facing each other are respectively fixedly connected with slide rails, and each slide rail is movably connected with a slider, and the outer walls of the two sliders on the opposite sides are respectively fixedly connected with side The support rod is provided with a support shaft, and the two side support rods are connected by a support shaft, one end of the support shaft is movably connected in the first bearing seat and is connected to the servo motor, the support shafts of the two adjacent workstations are connected to each other, and the connection between the two is movably connected with the second bearing seat; the limit mechanism includes an upper guide groove and a lower guide groove, and the upper guide groove and the lower guide groove are respectively fitted with the upper limit frame and the lower limit frame, the bottom outer wall of the upper guide groove is connected with the first bottom plate through a rebound hinge, and the first bottom plate is fitted with the bottom end of the upper limit frame; the outer walls on both sides of the upper limit frame facing each other are respectively fixed with limit plug plates, and the limit plug plates are movably inserted with limit plug rods, and the limit plug rods are fixed to the top of the support table. The multi-station high-precision molded case circuit breaker production method provided by the present invention has the technical effect that the alignment of the upper and lower workpieces can be completed by a simple structure, which can effectively improve the work efficiency while avoiding the technical effect of reducing the quality of the finished product due to the misalignment of the upper and lower workpieces. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the assembly equipment structure of a multi-station high-precision molded case circuit breaker production method proposed by the present invention.

[0020] Figure 2 The present invention provides a schematic diagram of the disassembled structure of a limit conveying mechanism in an assembly device for a multi-station high-precision molded case circuit breaker production method proposed by the present invention.

[0021] Figure 3 A schematic diagram of the structure of a pushing mechanism in an assembly device for a multi-station high-precision molded case circuit breaker production method proposed by the present invention.

[0022] Figure 4 The present invention provides a schematic diagram of the structure of a limiting mechanism in an assembly device for a multi-station high-precision molded case circuit breaker production method.

[0023] Figure 5 The present invention provides a schematic structural diagram of a material removal mechanism in an assembly device for a multi-station high-precision molded case circuit breaker production method.

[0024] Figure 6 The present invention provides a schematic diagram of the overall structure of a multi-station high-precision molded case circuit breaker production method.

[0025] In the figure: 1, limit conveying mechanism; 2, limit mechanism; 3, conveyor belt; 4, pushing mechanism; 5, support table; 6, unloading mechanism; 7, storage box; 101, first bottom plate; 102, servo motor; 103, first bearing seat; 104, side support rod; 105, limit plug rod; 106, slide rail; 107, limit plug plate; 108, upper limit frame; 109, lower limit frame; 110, second bearing seat; 111, support shaft; 201, upper guide groove ; 202, lower guide groove; 203, side bracket; 204, first support; 205, guide slide groove; 206, longitudinal slider; 207, second support; 401, support frame; 402, extended gas rod; 403, limit frame; 404, piston rod; 405, push plate; 406, limit support rod; 601, second bottom plate; 602, first hinged seat; 603, second gas rod; 604, second hinged seat; 605, electric wire; 606, foot switch. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0027] A multi-station high-precision molded case circuit breaker production method disclosed in the present invention is mainly used in the scenario of molded case circuit breaker production.

[0028] Reference Figure 1 and Figure 2A multi-station high-precision molded case circuit breaker production method includes an assembly device, the assembly device includes a support table 5, and a plurality of stations are arranged on the support table 5, each station is respectively provided with a limited conveying mechanism 1, a limiting mechanism 2, a pushing mechanism 4 and a feeding mechanism 6, a conveyor belt 3 is arranged between the limiting mechanism 2 and the pushing mechanism 4, and the pushing mechanism 4 includes an extended gas rod 402; the limiting conveying mechanism 1 includes an upper limit frame 108 and a lower limit frame 109, the lower limit frame 109 is fixed on the support table 5, the outer walls of the upper limit frame 108 on both sides facing each other are respectively fixedly connected with slide rails 106, and each slide rail 106 is movably connected with a slider, the outer walls of the two sliders on the opposite sides are respectively fixedly connected with side support rods 104, and the two side support rods 104 are connected by a support shaft 111 One end of the support shaft 111 is movably connected in the first bearing seat 103 and is connected to the servo motor 102. The support shafts 111 of two adjacent workstations are connected to each other, and the connection between the two is movably connected with the second bearing seat 110; the limiting mechanism 2 includes an upper guide groove 201 and a lower guide groove 202, and the upper guide groove 201 and the lower guide groove 202 are respectively arranged to fit the upper limit frame 108 and the lower limit frame 109, and the bottom outer wall of the upper guide groove 201 is connected to the first bottom plate 101 through a rebound hinge, and the first bottom plate 101 is fitted to the bottom end of the upper limit frame 108; the outer walls on both sides of the upper limit frame 108 are respectively fixed with limiting plug plates 107, and the limiting plug plate 107 is movably inserted with the limiting plug rod 105, and the limiting plug rod 105 is fixed to the top of the supporting table 5.

[0029] Reference Figure 3 In a preferred embodiment, the pushing mechanism 4 includes a support frame 401, and the extended gas rod 402 is fixed on the support frame 401, and a plurality of limit frames 403 are arranged on the same side of the support frame 401.

[0030] Reference Figure 3 In a preferred embodiment, the extended gas rod 402 includes a piston rod 404, and the piston rod 404 passes through the limit frame 403 and is connected to a push plate 405. The outer wall on the same side of the push plate 405 is fixedly connected to a limit support rod 406, and the limit support rod 406 is movably inserted into multiple limit frames 403. The push mechanism 4 drives the push plate 405 to push the workpiece into the limit conveying mechanism 1 through the extension and retraction of the extended gas rod 402. During the process, the stability of the push is ensured by the limit support rod 406 movably inserted into the limit frame 403.

[0031] Reference Figure 4 In a preferred embodiment, the inner diameters of the upper guide groove 201 and the lower guide groove 202 are arranged to decrease from front to back, and the side brackets 203 are fixedly connected to both sides of the upper guide groove 201 and the lower guide groove 202, and the side brackets 203 are fixed on the supporting table 5; the limiting mechanism 2 also includes a first support 204 and a second support 207.

[0032] Reference Figure 4 In a preferred embodiment, a guide slot 205 is provided on the first support 204, and the inner diameter of the guide slot 205 is gradually increased from top to bottom. A longitudinal slider 206 is provided on the outer wall of one side of the second support 207. The longitudinal slider 206 is movably connected to the guide slot 205, and its outer diameter is equal to the inner diameter of the guide slot 205. In the limiting mechanism 2, through the setting of the upper guide slot 201 and the lower guide slot 202, the workpiece can be pushed into the upper limit frame 108 and the lower limit frame 109 smoothly and accurately when pushed by the pushing mechanism 4, even if there is an inclination. At the same time, under the action of the guide slot 205, when the upper limit frame 108 moves up and returns to its position, the longitudinal slider 206 can move in the guide slot 205 to assist in the positioning of the upper limit frame 108, thereby ensuring the accuracy of the position of the upper limit frame 108 and further ensuring that the workpiece can be smoothly fitted with the upper limit frame 108 during the pushing process.

[0033] Reference Figure 1 and Figure 5 In a preferred embodiment, a storage box 7 is provided under each workstation, and the unloading mechanism 6 includes a plurality of second bottom plates 601, which are connected to the top inner wall of the supporting table 5 through hinges, and the second bottom plates 601 are attached to the bottom end of the lower limit frame 109.

[0034] Reference Figure 5 In a preferred embodiment, the outer wall of the bottom end of the second base plate 601 is connected to the second gas rod 603 through the first hinge seat 602, and one end of the second gas rod 603 is connected to one side of the support table 5 through the second hinge seat 604, and one side of the second gas rod 603 is connected to the foot switch 606 through the wire 605. When the assembly of the screws is completed, the foot switch 606 is stepped on to control the retraction of the second gas rod 603 through the wire 605, and drive the second base plate 601 to be perpendicular to the support table 5, leaving the bottom unloading position of the lower limit frame 109, and the assembled workpiece can be directly dropped into the storage box 7 for storage through the unloading position. Under this structure, unloading can be assisted to avoid the workers' turnover again, thereby reducing the difficulty of operation and optimizing the operation steps.

[0035] Reference Figure 6 In a preferred embodiment, the method comprises the following specific steps:

[0036] S1: conveying the upper and lower workpieces of the molded case circuit breaker at intervals on the conveyor belt 3;

[0037] S2: When the number of workpieces on the conveyor belt 3 reaches the number that matches the workstation, the upper and lower workpieces are pushed into the upper limit frame 108 and the lower limit frame 109 respectively through the pushing mechanism 4;

[0038] S3: The servo motor 102 rotates to drive the upper limit frame 108 and the lower limit frame 109 to merge, so as to limit the positions of the upper and lower workpieces, and the upper workpiece is stacked on the lower workpiece;

[0039] S4: assembly screw;

[0040] S5: Step on the foot switch 606 to complete unloading.

[0041] Working principle: The upper and lower workpieces of the molded case circuit breaker are transported at equal distances on the conveyor belt 3. When a certain amount is reached, the upper and lower workpieces can be pushed into the upper limit frame 108 and the lower limit frame 109 respectively through the extended gas rod 402 in the pushing mechanism 4, and the positions of the upper and lower workpieces are limited by the two. When the servo motor 102 rotates, it drives the side support rod 104 to rotate, and the slider moves on the slide rail 106, and the limit rod 105 is inserted in the limit plate 107 to provide a limiting effect, so that the upper limit frame 108 and the lower limit frame 109 can be moved. The upper limit frame 109 is stacked, and the first base plate 101 is in a vertical state under the movement of the upper limit frame 108, so as to realize the limitation in another direction. Therefore, under the stacking of the upper limit frame 108 and the lower limit frame 109, the upper and lower workpieces can also be limited to complete the alignment and stacking. At this time, the screws can be directly assembled. Under this structure, the alignment of the upper and lower workpieces can be completed through a simple structure during the transmission of the upper and lower workpieces, which can effectively improve the work efficiency and avoid the alignment errors of the upper and lower workpieces that reduce the quality of the finished product.

[0042] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A multi-station high-precision molded case circuit breaker production method, including assembly equipment, characterized in that: The assembly equipment comprises a support table (5), and a plurality of workstations are arranged on the support table (5), each of the workstations is respectively provided with a limited conveying mechanism (1), a limited mechanism (2), a pushing mechanism (4) and a material discharge mechanism (6), a conveyor belt (3) is arranged between the limited mechanism (2) and the pushing mechanism (4), and the pushing mechanism (4) comprises an extended gas rod (402); The position-limiting conveying mechanism (1) comprises an upper position frame (108) and a lower position limit frame (109), the lower position limit frame (109) being fixed on the supporting table (5), the outer walls on the two opposite sides of the upper position frame (108) being fixedly connected to slide rails (106), and each slide rail (106) being movably connected to a slider, the outer walls on the opposite sides of the two sliders being fixedly connected to side support rods (104), and the two side support rods (104) being connected via a support shaft (111), one end of the support shaft (111) being movably connected to the first bearing seat (103) and connected to the servo motor (102), the support shafts (111) of two adjacent workstations being connected to each other, and the connection between the two being movably connected to a second bearing seat (110); The limiting mechanism (2) comprises an upper guide groove (201) and a lower guide groove (202), and the upper guide groove (201) and the lower guide groove (202) are respectively arranged to fit with the upper limit frame (108) and the lower limit frame (109), and the outer wall at the bottom end of the upper guide groove (201) is connected to the first bottom plate (101) via a rebound hinge, and the first bottom plate (101) fits with the bottom end of the upper limit frame (108); The upper limit frame (108) has two outer walls facing each other on both sides respectively fixed with limit plug plates (107), and the limit plug plates (107) are movably inserted with limit plug rods (105), and the limit plug rods (105) are fixed on the top of the support table (5); The extended gas rod (402) comprises a piston rod (404), and the piston rod (404) passes through the limiting frame (403) and is connected to a push plate (405), and the outer wall on the same side of the push plate (405) is fixedly connected to a limiting support rod (406), and the limiting support rod (406) is movably inserted into the plurality of limiting frames (403); The inner diameters of the upper guide groove (201) and the lower guide groove (202) are arranged to decrease from front to back, and side brackets (203) are fixedly connected to both sides of the upper guide groove (201) and the lower guide groove (202), and the side brackets (203) are fixed on the support table (5); The limiting mechanism (2) further comprises a first support (204) and a second support (207); The first support (204) is provided with a guide slot (205), and the inner diameter of the guide slot (205) is arranged to increase from top to bottom. A longitudinal slider (206) is provided on an outer wall of one side of the second support (207), and the longitudinal slider (206) is movably connected in the guide slot (205), and its outer diameter is equal to the inner diameter of the guide slot (205).

2. A multi-station high-precision molded case circuit breaker production method according to claim 1, characterized in that: The pushing mechanism (4) comprises a support frame (401), and the extended gas rod (402) is fixed on the support frame (401), and a plurality of limit frames (403) are arranged on the same side of the support frame (401).

3. A multi-station high-precision molded case circuit breaker production method according to claim 1, characterized in that: A storage box (7) is provided below each of the workstations. The unloading mechanism (6) comprises a plurality of second bottom plates (601). The second bottom plates (601) are connected to the top inner wall of the support table (5) via hinges, and the second bottom plates (601) are attached to the bottom end of the lower limit frame (109).

4. A multi-station high-precision molded case circuit breaker production method according to claim 3, characterized in that: The outer wall of the bottom end of the second bottom plate (601) is connected to a second gas rod (603) via a first hinge seat (602), and one end of the second gas rod (603) is connected to one side of the support table (5) via a second hinge seat (604), and one side of the second gas rod (603) is connected to a foot switch (606) via an electric wire (605).

5. A multi-station high-precision molded case circuit breaker production method according to claim 4, characterized in that: The specific steps include: S1: conveying the upper and lower workpieces of the molded case circuit breaker at intervals on the conveyor belt (3); S2: When the number of workpieces on the conveyor belt (3) reaches the number that matches the workstation, the upper and lower workpieces are pushed into the upper limit frame (108) and the lower limit frame (109) respectively through the pushing mechanism (4); S3: The servo motor (102) rotates to drive the upper limit frame (108) and the lower limit frame (109) to merge, thereby limiting the positions of the upper and lower workpieces, and the upper workpiece is stacked on the lower workpiece; S4: assembly screw; S5: Step on the foot switch (606) to complete unloading.

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