A jig for processing circuit breakers

Abstract

This utility model discloses a fixture for circuit breaker processing, belonging to the field of circuit breaker processing technology. It aims to solve the problems of existing technologies that are difficult to adapt to circuit breakers of different sizes and cannot flexibly adjust the processing surface during clamping. These fixtures often employ fixed-size structures, which either cause wobbling due to excessive gaps or damage to the casing due to excessive tightness when dealing with circuit breakers of varying widths and thicknesses. Furthermore, the fixed clamping angle and position design prevent the processing surface from being adjusted as needed after the circuit breaker is clamped. If the operator needs to change the processing position, they must disassemble, reposition, and clamp again, which not only increases repetitive operation time and reduces work efficiency but also easily leads to positioning errors due to repeated clamping, thus affecting processing accuracy. The fixture includes a base frame, with a lifting processing table installed in the middle and above of the base frame, and alignment adjustment mechanisms provided on both sides and above the base frame. The alignment adjustment mechanism includes a pair of processing racks.

Description

Technical Field

[0001] This utility model belongs to the field of circuit breaker processing technology, specifically relating to a fixture for circuit breaker processing. Background Technology

[0002] A molded case circuit breaker is a device that can automatically cut off the current when the current exceeds the trip setting. Molded case refers to the use of plastic insulators as the outer shell of the device. During the production and processing of molded case circuit breakers, the workpiece needs to be clamped by a fixture to prevent the workpiece from deviating during processing. A fixture is a tool used to fix the workpiece during the mechanical manufacturing process.

[0003] Current circuit breaker machining fixtures are difficult to adapt to circuit breakers of different sizes and cannot flexibly adjust the machining surface during clamping. These fixtures mostly adopt a fixed size structure, which either causes clamping wobbling due to excessive gaps or damage to the housing due to excessive tightness when facing circuit breakers of different widths and thicknesses. At the same time, the fixed clamping angle and position design means that the machining surface cannot be adjusted as needed after the circuit breaker is clamped. If the operator needs to change the machining position, they must disassemble, reposition, and clamp again. This not only increases the repetitive operation time and reduces the work efficiency, but also easily causes positioning errors due to multiple clamping, which in turn affects the machining accuracy. Utility Model Content

[0004] (1) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a fixture for circuit breaker processing. This fixture aims to solve the problems of existing technologies, which are difficult to adapt to circuit breakers of different sizes and cannot flexibly adjust the processing surface during clamping. These fixtures often employ fixed-size structures, which, when faced with circuit breakers of varying widths and thicknesses, either cause wobbling due to excessive gaps or damage to the housing due to excessive tightness. Furthermore, the fixed clamping angle and position design prevent the processing surface from being adjusted as needed after the circuit breaker is clamped. If the operator needs to change the processing position, they must disassemble, reposition, and clamp again. This not only increases repetitive operation time and reduces work efficiency but also easily leads to positioning errors due to repeated clamping, thus affecting processing accuracy.

[0006] (2) Technical solution

[0007] To solve the above-mentioned technical problems, this utility model provides a fixture for processing circuit breakers, including a base frame. A lifting processing table is installed in the middle and above of the base frame, and alignment adjustment mechanisms are provided on both sides and above the base frame. The alignment adjustment mechanism includes a pair of processing racks, and an adapter clamping mechanism is installed at the inner end of the two processing racks. The adapter clamping mechanism includes an inner rack, and an adjustment component is assembled in the middle and inner side of the inner rack. The adjustment component includes a rotating shaft frame, and a clamping frame is fixed at the inner end of the rotating shaft frame. The clamping component is installed in the middle and inner side of the clamping frame.

[0008] Furthermore, the adjustment assembly includes a first mounting bracket, which is fixedly disposed on one side above the inner mounting bracket. A first drive motor is disposed in the middle of the first mounting bracket, and the output end of the first drive motor is connected to a worm gear. A worm wheel is engaged on one side of the worm gear, and a rotating shaft bracket is fixedly disposed in the middle of the worm wheel.

[0009] Furthermore, the rotating shaft frame utilizes a worm gear and worm wheel to form a meshing transmission connection.

[0010] Furthermore, the clamping assembly includes a second mounting bracket, which is fixedly disposed in the middle section of the clamping frame. A second drive motor is mounted in the middle of the second mounting bracket, and a gear is fitted around the output end of the second drive motor. The gear meshes with rack guides on its upper and lower sides. A first guide groove is provided on the upper and lower sides of the interior of the clamping frame, and a second guide groove is provided on different sides of the upper and lower front ends of the two clamping frames. A connecting frame is fixedly disposed in front of the opposite ends of the two rack guides, and an anti-slip clamp is fixedly disposed at the front end of the two connecting frames.

[0011] Furthermore, there are two rack guides, and the two rack guides are staggered and opposite to each other along the upper and lower parts of the gear.

[0012] Furthermore, the alignment adjustment mechanism includes two preset side grooves, which are respectively located on both sides of the base frame. A double-headed motor is installed in the middle of one of the preset side grooves, and a transmission screw is connected to both ends of the double-headed motor. Screw sleeves are screwed around the opposite sections of the two transmission screws, and a processing bracket is fixed around the two screw sleeves. A sliding rod is fixed in the middle of the other preset side groove.

[0013] Furthermore, the slide bar is horizontally guided to the machining frame.

[0014] (3) Beneficial effects

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] This invention allows personnel to start the second drive motor, causing the gear fixed at the output end to rotate. This allows the rack guides, which are offset and positioned above and below the gear, to mesh and drive the guide frames and anti-slip plates at their opposite ends, along with the first and second guide grooves, to move relative to each other. This achieves stable clamping of the circuit breaker's four sides. When the processing requires adjustment of the circuit breaker's surface, the operator can pre-control the lowering of the lifting processing table to provide space for the subsequent rotation of the circuit breaker. Then, the first drive motor above one of the internal mounting frames is started to rotate the worm gear. At this time, the worm wheel meshing with the worm gear rotates the rotating shaft, providing a rotational force to one of the clamping frames and corresponding clamping components. Combined with the mobility of the single rotating shaft at the rear of the other clamping frame, the rotational adjustment of the clamped circuit breaker's surface can be achieved. After adjustment, the lifting processing table is raised to assist in supporting the lower end of the circuit breaker.

[0017] The operator can first place the circuit breaker to be clamped stably on the upper center of the lifting processing table (the lifting processing table is a commercially available lifting technology, which can be supported by one or more sets of electric telescopic rods). Then, the operator can adjust the height of the lifting processing table according to the height of the circuit breaker to ensure that the two sides of the circuit breaker can match the center of the two clamping frames. In this state, the operator can start the double-head motor to rotate the transmission screws at both ends. As a result, the screw sleeves that interact with the two transmission screws can move relative to each other with their respective fixed processing frames and guide the sliding rods. At this time, the matching clamping mechanisms located at the inner ends of the relative processing frames will move synchronously to ensure that the relative component clamping frames can be tightly attached to the two sides of the circuit breaker. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of a partial structure of the alignment adjustment mechanism;

[0021] Figure 3 This is a schematic diagram of a three-dimensional partial structure;

[0022] Figure 4 This is a schematic diagram of the internal structure of the internal frame.

[0023] The labels in the attached diagram are as follows: 1. Base frame; 2. Lifting processing table; 3. Alignment adjustment mechanism; 31. Preset side groove; 32. Double-headed motor; 33. Transmission screw; 34. Screw sleeve; 35. Processing rack; 36. Slide rod; 4. Adaptive clamping mechanism; 41. Inner rack; 42. Adjustment component; 421. First rack; 422. First drive motor; 423. Worm gear; 424. Worm wheel; 425. Rotating shaft frame; 43. Clamping frame; 44. Clamping component; 441. Second rack; 442. Second drive motor; 443. Gear; 444. Rack guide; 445. First guide groove; 446. Guide frame; 447. Second guide groove; 448. Anti-slip clamp. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] This specific embodiment is a fixture for processing circuit breakers, and its structural schematic diagram is shown below. Figures 1 to 4As shown, the system includes a base frame 1. A lifting processing table 2 is installed in the middle and above of the base frame 1. Alignment adjustment mechanisms 3 are provided on both sides and above the base frame 1. Each alignment adjustment mechanism 3 includes a pair of processing racks 35, and an adapter clamping mechanism 4 is installed at the inner end of each processing rack 35. The alignment adjustment mechanism 3 includes two preset side grooves 31, which are located on both sides of the base frame 1. A double-headed motor 32 is installed in the middle of one of the preset side grooves 31, and transmission screws 33 are connected to both ends of the double-headed motor 32. Screw sleeves 34 are screwed around the opposite sections of the two transmission screws 33, and processing racks 35 are fixed around the periphery of the two screw sleeves 34. A sliding rod 36 is fixed in the middle of the other preset side groove 31, and the sliding rod 36 is connected to the processing rack 35. The connection between 5 is a horizontal guide. The operator can place the circuit breaker to be clamped stably on the upper center of the lifting processing table 2 (the lifting processing table 2 is a commercially available lifting technology, which can be supported by one or more sets of electric telescopic rods). Then, the operator can adjust the height of the lifting processing table 2 according to the height of the circuit breaker to ensure that the two sides of the circuit breaker can match the center of the two clamping frames 43. In this state, the operator can start the double-head motor 32 to rotate the transmission screws 33 at both ends. As a result, the screw sleeves 34 that interact with the two transmission screws 33 can move relative to each other with their respective fixed processing frames 35 and guide the sliding rods 36. At this time, the matching clamping mechanisms 4 located at the inner ends of the relative processing frames 35 will move synchronously to ensure that the relative component clamping frames 43 can be tightly attached to the two sides of the circuit breaker.

[0026] The adapter clamping mechanism 4 includes an inner frame 41, and an adjustment component 42 is assembled in the middle and on the inner side of the inner frame 41. The adjustment component 42 includes a first frame 421, which is fixedly mounted on the upper side of the inner frame 41. A first drive motor 422 is arranged in the middle of the first frame 421, and a worm gear 423 is connected to the output end of the first drive motor 422. A worm wheel 424 is meshed on one side of the worm gear 423, and a rotating shaft frame 425 is fixedly mounted in the middle of the worm wheel 424. The rotating shaft frame 425 is connected by the worm gear 423 and the worm wheel 424 to form a meshing transmission connection, and a clamping frame 4 is fixedly mounted on the inner end of the rotating shaft frame 425. 3. A clamping assembly 44 is installed in the middle and inner side of the clamping frame 43. The clamping assembly 44 includes a second mounting frame 441, which is fixedly installed in the middle section of the clamping frame 43. A second drive motor 442 is installed in the middle of the second mounting frame 441, and a gear 443 is fitted around the output end of the second drive motor 442. The gear 443 meshes with a rack guide 444 on its upper and lower sides. A first guide groove 445 is opened on the upper and lower sides of the interior of the clamping frame 43, and a second guide groove 447 is opened on different sides of the upper and lower front ends of the two clamping frames 43. A connecting frame 446 is fixedly installed in front of the opposite ends of the two rack guides 444. The front ends of the two guide brackets 446 are fixed with anti-slip clamps 448. Two rack guide brackets 444 are provided, and the two rack guide brackets 444 are staggered and oppositely arranged along the upper and lower parts of the gear 443. When the second drive motor 442 is started, the gear 443 fixed at the output end rotates. Thus, the rack guide brackets 444 staggered and oppositely arranged above and below the gear 443 can be meshed and driven by them, and the guide brackets 446 and anti-slip clamps 448 at their opposite ends are relatively displaced in conjunction with the multiple guides of the first guide groove 445 and the second guide groove 447, thereby achieving stable clamping of the four sides of the other two sides of the circuit breaker; when the processing operation requires the involvement of When adjusting the machining surface of the circuit breaker, the operator can pre-control the lifting machining table 2 to descend, providing space for the subsequent flipping of the circuit breaker. Then, the first drive motor 422 above one of the inner mounting frames 41 is started to rotate the worm gear 423. At this time, the worm wheel 424 meshing with the worm gear 423 can rotate the rotating shaft frame 425, thereby providing a flipping force to one of the clamping frames 43 and the corresponding clamping components 44. In combination with the mobility of the single rotating shaft frame 425 at the rear end of the other clamping frame 43, the machining surface of the clamped circuit breaker can be flipped and adjusted. After the adjustment is completed, the lifting machining table 2 is controlled to rise to assist in supporting the lower end face of the circuit breaker.

[0027] Working principle: The operator can first place the circuit breaker to be clamped stably on the upper center of the lifting processing table 2 (where the lifting processing table 2 uses existing lifting technology and can be supported by one or more sets of electric telescopic rods). Then, the operator adjusts the height of the lifting processing table 2 according to the height of the circuit breaker to ensure that the two sides of the circuit breaker can match the center of the two clamping frames 43. In this state, the operator can start the double-head motor 32 to rotate the transmission screws 33 at both ends. As a result, the screw sleeves 34 that interact with the two transmission screws 33 can move relative to each other with their respective fixed processing frames 35 and guide the sliding rods 36. At this time, the matching clamping mechanisms 4 located at the inner ends of the relative processing frames 35 will move synchronously to ensure that the relative component clamping frames 43 can be tightly attached to the two sides of the circuit breaker. Next, the operator starts the second drive motor 442 to rotate the gear 443 fixed at the output end. As a result, the rack guides that are relatively staggered and located above and below the gear 443 will rotate. 444 can be driven by its meshing to move the guide frame 446 and anti-slip clamp 448 at the front of the opposite end in conjunction with the first guide groove 445 and the second guide groove 447 to achieve relative displacement, thereby achieving stable clamping of the four sides of the other two sides of the circuit breaker. When the processing operation requires adjustment of the processing surface of the circuit breaker, the operator can control the lifting processing table 2 to descend in advance to provide space for the subsequent flipping of the circuit breaker. Then, the first drive motor 422 above one of the inner frame 41 is started to rotate the worm gear 423. At this time, the worm wheel 424 meshing with the worm gear 423 can rotate the rotating shaft frame 425, thereby providing a flipping force to one of the clamping frames 43 and the corresponding clamping components 44. In combination with the mobility of the single rotating shaft frame 425 at the rear end of the other clamping frame 43, the processing surface of the clamped circuit breaker can be flipped and adjusted. After the adjustment is completed, the lifting processing table 2 is controlled to rise to assist in supporting the lower end face of the circuit breaker.

[0028] All technical features in this embodiment can be freely combined according to actual needs.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A jig for processing a circuit breaker comprising a base frame (1), characterized in that, The base frame (1) is provided with a lifting processing table (2) in the middle and above, and the base frame (1) is provided with a positioning adjustment mechanism (3) on both sides and above. The positioning adjustment mechanism (3) includes a pair of processing racks (35), and the inner ends of the two processing racks (35) are provided with an adapter clamping mechanism (4). The adapter clamping mechanism (4) includes an inner rack (41), and the middle and inner side of the inner rack (41) are equipped with an adjustment component (42). The adjustment component (42) includes a rotating shaft frame (425), and the inner end of the rotating shaft frame (425) is fixed with a clamping frame (43). The middle and inner side of the clamping frame (43) are equipped with a clamping component (44).

2. The clamp for processing of a circuit breaker according to claim 1, characterized in that The adjustment assembly (42) includes a first mounting bracket (421), which is fixed on the upper side of the inner mounting bracket (41). A first drive motor (422) is provided in the middle of the first mounting bracket (421), and a worm gear (423) is connected to the output end of the first drive motor (422). A worm wheel (424) is engaged on one side of the worm gear (423), and a rotating shaft bracket (425) is fixed in the middle of the worm wheel (424).

3. A fixture for processing circuit breakers according to claim 2, characterized in that, The rotating shaft bracket (425) is connected by a worm (423) and a worm wheel (424) to form a meshing transmission connection.

4. A fixture for processing circuit breakers according to claim 1, characterized in that, The clamping assembly (44) includes a second mounting bracket (441), which is fixed in the middle section of the clamping frame (43). A second drive motor (442) is mounted in the middle of the second mounting bracket (441), and a gear (443) is fitted around the output end of the second drive motor (442). A rack guide (444) meshes with the upper and lower sides of the gear (443). A first guide groove (445) is opened in the upper and lower sides of the interior of the clamping frame (43), and a second guide groove (447) is opened on different sides of the upper and lower front ends of the two clamping frames (43). A guide frame (446) is fixed in front of the opposite ends of the two rack guides (444), and an anti-slip clamp (448) is fixed in front of the two guide frames (446).

5. A fixture for processing circuit breakers according to claim 4, characterized in that, Two rack guides (444) are provided, and the two rack guides (444) are staggered and opposite to each other along the upper and lower parts of the gear (443).

6. A fixture for processing circuit breakers according to claim 1, characterized in that, The alignment adjustment mechanism (3) includes two preset side grooves (31), which are respectively located on both sides of the base frame (1). A double-headed motor (32) is installed in the middle of one of the preset side grooves (31), and the two ends of the double-headed motor (32) are connected to the transmission screws (33). Screw sleeves (34) are screwed around the opposite sections of the two transmission screws (33), and processing racks (35) are fixed around the two screw sleeves (34). A slide rod (36) is fixed in the middle of the other preset side groove (31).

7. A fixture for processing circuit breakers according to claim 6, characterized in that, The slide bar (36) is horizontally connected to the machining frame (35).

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