A circuit breaker chassis assembly station

Abstract

The application discloses a circuit breaker chassis assembling table in the technical field of power distribution electrical circuit breaker manufacturing equipment, and relates to the technical field of circuit breaker chassis assembling tables.

Description

Technical Field

[0001] This application relates to the technical field of circuit breaker manufacturing equipment, specifically a circuit breaker base assembly platform. Background Technology

[0002] For frame-type circuit breakers with high rated current, modular base frames are often used. These frames consist of two base frames arranged horizontally side-by-side. When each base frame only has fixing holes on both sides, even with crossbeam assembly slots designed on the frame, the dimensional and positional errors in these slots are still significant due to manufacturing processes. This makes it difficult to align the middle assembly section, resulting in inaccurate assembly positions of the two side base frames. Consequently, after assembly, the circuit breaker drawer base cannot be installed. Furthermore, assembling the busbars on the back of the base frame requires manual flipping, which is labor-intensive and inefficient. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this application provides a circuit breaker base frame assembly platform to solve the problems of difficulty in aligning spliced ​​base frames and the need for manual flipping of the base frames in the prior art.

[0004] To achieve the above objectives, this application provides the following technical solution:

[0005] A circuit breaker base frame assembly platform for assembling modular base frames includes a base frame positioning device, a crossbeam clamping device, a plate rotating device, a plate, a control device, and an assembly platform cabinet. The base frame positioning device is used to position the base frame and includes a positioning block fixed to the plate and a T-shaped handle. The positioning block is fixed around the perimeter of the base frame. The T-shaped handle includes a gripping rod and a fixing rod. The end of the fixing rod is vertically fixed to the center of the gripping rod. The T-shaped handle is detachably fixed to both ends of the base frame in the splicing direction to secure the base frame to the plate. The crossbeam clamping device is evenly distributed on both sides of the base frame in the splicing direction to clamp the crossbeams on both sides of the base frame. Clamped on the base frame, the plate rotation device includes a rotating block, a rotating shaft, a rotating bearing, and a plate rotation power device. The ends of the two coaxial rotating shafts are fixedly installed on the edge of the plate outside the T-shaped handle through the rotating block. The rotating shafts are fixedly installed on the assembly table cabinet through the rotating bearing. The rotating shafts rotate the plate under the drive of the plate rotation power device. The plate has a busbar hole at the position corresponding to the circuit breaker busbar. The beam clamping device and the plate rotation power device are connected to the control device on the assembly table cabinet. The control device is used to control the beam clamping device and the plate rotation power device to perform beam clamping and plate rotation actions respectively.

[0006] Preferably, the positioning block includes an L-shaped positioning block and a straight positioning block. The L-shaped positioning block is fixed at the outermost corner of the base frame at the splice, and the straight positioning block is fixed at the outer side of the base frame splice.

[0007] Preferably, the beam clamping device includes a clamping block, a fixing ring, and a clamping rotation device. The clamping block is provided with a cam feature parallel to the plate. The clamping block is fixed to the shaft of the clamping rotation device by the fixing ring. The shaft of the clamping rotation device is vertically fixed to the plate. When the clamping rotation device rotates, the cam feature of the clamping block rotates in a plane parallel to the plate and uses this feature to press the beam against the base frame.

[0008] Preferably, the clamping rotation device uses a clamping rotation cylinder.

[0009] Preferably, the plate rotation power device uses a plate rotation mechanism connected to the rotating shaft of the plate rotation device via a belt drive structure. The belt drive structure includes two synchronous pulleys and a synchronous belt that meshes with and drives the two synchronous pulleys in parallel. One synchronous pulley is fixed on the rotating shaft, and the other synchronous pulley is fixed on the shaft of the plate rotation mechanism. The plate rotation mechanism is fixed inside the assembly table cabinet.

[0010] Preferably, the plate rotation mechanism uses a plate rotation cylinder.

[0011] Preferably, the plate rotation device further includes a buffer device, which is evenly arranged below the edges of the plate on both sides of the base frame splicing direction.

[0012] Preferably, the buffer device uses a hydraulic buffer.

[0013] Preferably, the control device uses a pneumatic solenoid valve.

[0014] Preferably, the rotating block and the plate are positioned using a fixing pin that runs vertically through both.

[0015] Compared to existing technologies, this solution offers the following advantages: The circuit breaker base frame assembly platform of this application adopts modular components. The entire equipment is composed of several independent functional modules, shortening the research and development assembly time, improving functional reliability, and reducing costs. During assembly, the base frame is fixed with T-shaped handles with positioning features. The upper and lower crossbeams are fixed to the base frame by four rotating mechanisms. After assembly, the base frame is flipped by a pneumatic tilting cylinder to install the bottom copper busbar. Different positioning block hole positions also allow for compatibility with various modular base frame assemblies, ensuring accurate positioning of the base frame and crossbeams to be assembled, improving assembly precision, ensuring product quality, increasing work efficiency, and reducing labor intensity. This solution has been put into production and is being used on the production line with good results and positive employee feedback. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the circuit breaker base frame that needs to be assembled in one embodiment of this solution;

[0017] Figure 2 A three-dimensional structural diagram showing the hidden two side cabinet doors and a top crossbeam of the circuit breaker base frame before rotation, in order to place the circuit breaker base frame onto the platform of one embodiment of this solution.

[0018] Figure 3 A three-dimensional structural diagram showing the circuit breaker base frame after being rotated onto the platform of one embodiment of this solution;

[0019] Figure 4 This is a three-dimensional structural diagram of the peripheral structure of the flat plate in one embodiment of the present solution before rotation;

[0020] Among them, 1-base frame positioning device, 11-positioning block, 111-L-shaped positioning block, 112-linear positioning block, 12-T-shaped handle, 2-crossbeam clamping device, 21-clamping rotary cylinder, 22-fixing ring, 23-clamping block, 3-flat plate rotating device, 31-rotating block, 32-rotating bearing, 331-synchronous belt, 332-synchronous pulley, 34-flat plate rotary cylinder, 35-hydraulic buffer, 36-fixing pin, 4-flat plate, 41-busbar hole, 5-pneumatic solenoid valve, 61-first crossbeam, 62-second crossbeam, 63-first base frame, 64-second base frame, 65-busbar, 66-fixing hole. Detailed Implementation

[0021] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0022] The circuit breaker base frame assembly platform of this embodiment is used to assemble a modular base frame, which includes a first base frame 63 and a second base frame 64 that need to be assembled side by side laterally, and a first crossbeam 61 and a second crossbeam 62 that need to be assembled on top of the two. Busbars 65 need to be installed on the outer back of the first base frame 63 and the second base frame 64. The first base frame 63 and the second base frame 64 each only have three fixing holes 66 on both sides, making it difficult to align the two base frames when splicing them using existing technology. The circuit breaker base frame assembly platform of this embodiment includes a base frame positioning device 1, a crossbeam clamping device 2, a plate rotating device 3, a plate 4, a control device, and an assembly platform cabinet. The assembly platform cabinet is constructed from a frame of main profiles, with casters installed at the bottom of the frame and cabinet doors installed on the frame. The base frame positioning device is used for positioning the base frame, including a positioning block 11 and a T-shaped handle 12 fixed on the plate 4. The positioning block 11 is fixed around the perimeter of the base frame. In this embodiment, the positioning block 11 includes an L-shaped positioning block 111 and a straight positioning block 112. The L-shaped positioning block 111 is fixed at the outermost corner of the base frame at the splicing point, and the straight positioning block 112 is fixed at the outer side of the base frame splicing point. The two types of positioning blocks 11 form a precise positioning system. The design of the L-shaped positioning block 111 ensures that the first base frame 63 and the second base frame 64 can be accurately positioned during horizontal assembly, avoiding misalignment. The straight positioning block 112 ensures that at the base frame splicing point, the straight parts of the first base frame 63 and the second base frame 64 can fit tightly against the edge of the straight positioning block 112, further improving the assembly accuracy. This design not only simplifies the assembly process but also greatly improves assembly efficiency, making the assembly of the circuit breaker base frame more efficient and accurate.

[0023] The T-shaped handle 12 includes a gripping rod and a fixing rod. The end of the fixing rod is vertically fixed to the center of the gripping rod. The gripping rod of the T-shaped handle 12 can be made of bakelite for easy gripping and operation. The bottom of the fixing rod is threaded for screwing into the plate 4, and a step is provided above the thread for fixing the base frame. In this way, the T-shaped handle 12 can be detachably fixed to both ends of the base frame in the splicing direction using the fixing rod to fix the base frame to the plate 4. The T-shaped handle 12 can be quickly positioned and quickly disassembled, enabling the base frame to be quickly fixed to the plate 4 and facilitating the disassembly and replacement of base frames of different sizes. By cleverly combining the T-shaped handle 12 and the positioning block 11, the positioning function of the base frame is achieved in a relatively simple way.

[0024] The crossbeam clamping devices 2 are evenly arranged on the flat plates 4 on both sides of the base frame splicing direction, and are used to clamp the crossbeams on both sides of the base frame onto the base frame. In this embodiment, a rotary clamping method is used to clamp the crossbeams, with two on each side of the base frame splicing direction, for a total of four crossbeam clamping devices 2. In addition to the rotary clamping method, a linear clamping method can also be used for clamping. When using a rotary clamping method, the beam clamping device 2 includes a clamping block 23, a fixing ring 22, and a clamping rotary device. The clamping block 23 is provided with a cam feature parallel to the plate 4. The upper and lower surfaces of the clamping plate positioning beam are also fixed above and below the cam feature. The clamping block 23 is fixed to the shaft of the clamping rotary device by the fixing ring 22. The back of the cam feature of the clamping block 23 is fixed to the shaft of the clamping rotary device using a key connection. The upper and lower fixing rings 22 are semi-circular, clamping and fixing the shaft of the clamping rotary device and the clamping block 23 from the back. The shaft of the clamping rotary device is vertically fixed to the plate 4. When the clamping rotary device rotates, the cam feature of the clamping block 23 rotates in a plane parallel to the plate 4 and uses this feature to press the beam onto the base frame. This beam clamping device is specially designed for the crossbeam of the circuit breaker product base frame, ensuring a stable connection between the beam and the base frame and improving assembly accuracy. In this embodiment, in order to achieve greater torque, the clamping rotation device uses a clamping rotation cylinder 21. In addition to using a clamping rotation cylinder 21, a motor-type clamping rotation device can also be used to achieve better control.

[0025] The plate rotation device 3 includes a rotating block 31, a rotating shaft, a rotating bearing 32, and a plate rotation power device. The ends of the two coaxial rotating shafts are fixedly installed on the edge of the plate 4 outside the T-shaped handle 12 via the rotating block 31. In this embodiment, each rotating block 31 is precisely positioned with two vertically penetrating fixing pins 36 between them, and then bolts are inserted into the plate 4 from above and below the rotating block 31 for threaded fixation. The use of fixing pins 36 ensures that the rotation center of the rotating block 31 coincides with the rotation center of the plate 4, guaranteeing a stable connection between the rotating block 31 and the plate 4, and improving the stability and reliability of the equipment. The rotating shaft is fixedly installed on the assembly table cabinet via the rotating bearing 32. In this embodiment, the rotating bearing 32 is a vertical spherical bearing with a seat, which is fixed on the longitudinal beam of the assembly table cabinet and has a certain degree of adjustability. The rotating shaft rotates the plate 4 under the drive of the plate rotation power device.

[0026] To better match the plate rotation power unit, improve speed control, and simplify tabletop components, the plate rotation power unit uses a plate rotation mechanism connected to the rotating shaft of the plate rotation device 3 via a belt drive structure. The belt drive structure includes two synchronous pulleys 332 and a synchronous belt 331 that meshes with and drives the two synchronous pulleys 332 in parallel. One synchronous pulley 332 is fixed to the rotating shaft, and the other synchronous pulley 332 is fixed to the shaft of the plate rotation mechanism. The plate rotation mechanism is fixed inside the assembly cabinet; alternatively, it can be directly mounted on the tabletop to drive the rotating shaft. The plate rotation device 3, through the cooperation of the rotating block 31, rotating shaft, rotating bearing 32, and plate rotation power unit, enables the plate 4 to flip, facilitating the installation of the busbar 65 on the back of the base frame and reducing labor intensity.

[0027] To achieve a smooth and reliable flipping action and greater torque, the plate rotation mechanism uses a plate rotation cylinder 34. In addition to using a plate rotation cylinder 34, a motor-driven plate rotation device can also be used to achieve more precise control.

[0028] To buffer the positioning impact after the plate 4 is flipped into place, the plate rotation device also includes a buffer device, which is evenly distributed below the edges of the plate 4 on both sides of the base frame splicing direction. The buffer device can use cushioning materials such as sponge. In this embodiment, the buffer device uses two hydraulic buffers 35 on each side of the base frame splicing direction. The hydraulic buffers 35 are fixed to the main profile of the assembly table cabinet using brackets. To avoid obstructing the flipping, a clearance hole is provided on one side of the plate 4 corresponding to the position of the hydraulic buffer 35. The hydraulic buffers 35 disperse and dissipate impact energy through internal hydraulic oil, making the flipping process of the plate 4 smoother and ensuring operational safety and stability.

[0029] To facilitate the installation of the busbar 65 on the back of the base frame, a busbar hole 41 is provided on the plate 4 at the position corresponding to the circuit breaker busbar 65.

[0030] The beam clamping device 2 and the plate rotation power device are connected to a control device on the assembly table cabinet. The control device controls the beam clamping device 2 and the plate rotation power device to perform beam clamping and plate flipping actions, respectively. In this embodiment, since a pneumatic rotary cylinder is used, the control device uses a pneumatic solenoid valve 5, which controls the rotation. The control connection is pneumatic. When using a motor, the control connection is electrical, and the control device can use a push-button switch or a touch screen, or other control devices. In this embodiment, there are two pneumatic solenoid valves 5: one controls the beam clamping device 2, and the other controls the plate rotation power device. The use of the control device achieves automated control, improving work efficiency and accuracy.

[0031] In this embodiment, the circuit breaker base frame assembly platform is used by first installing the positioning block 11 corresponding to the product base frame in the positioning part, then placing the first base frame 63 and the second base frame 64 to be installed, and fixing them with T-shaped handles 12. Then, the first crossbeam 61 and the second crossbeam 62 of the base frame are placed in, and the upper and lower crossbeams and the base frame are fixed with screws. Pulling the pneumatic solenoid valve 5 of the clamping part causes the four clamping rotary cylinders 21 to quickly clamp the upper and lower crossbeams. Then, pulling the pneumatic solenoid valve 5 of the rotating part causes the mounting plate 4 to flip, allowing the assembly of the base frame's back busbar 65. This embodiment of the circuit breaker base frame assembly platform can be used not only for the horizontal side-by-side assembly of two base frames, but also for the horizontal side-by-side assembly of more than two base frames, exhibiting high assembly adaptability.

[0032] In this specification, the schematic diagrams in the accompanying drawings highlight the main features and key parts, and details are appropriately simplified or omitted. Therefore, they do not represent actual scale and size relationships. The terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0033] The above description is only a preferred embodiment of the present solution, but the scope of protection claimed by the present solution is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and inventive concept of this application, should be included within the scope of protection of this application.

Claims

1. A circuit breaker base frame assembly platform for assembling modular base frames, characterized in that: The system includes a base frame positioning device (1), a crossbeam clamping device (2), a plate rotating device (3), a plate (4), a control device, and an assembly cabinet. The base frame positioning device is used to position the base frame and includes a positioning block (11) fixed on the plate (4) and a T-shaped handle (12). The positioning block (11) is fixed around the base frame. The T-shaped handle (12) includes a gripping rod and a fixing rod. The end of the fixing rod is vertically fixed to the center of the gripping rod. The T-shaped handle (12) is detachably fixed to both ends of the base frame in the splicing direction to fix the base frame to the plate (4). The crossbeam clamping device (2) is evenly arranged on both sides of the base frame splicing direction to clamp the crossbeams on both sides of the base frame to the base frame. The plate rotating device... The device (3) includes a rotating block (31), a rotating shaft, a rotating bearing (32), and a plate rotating power device. The ends of the two coaxial rotating shafts are fixedly installed on the edge of the plate (4) outside the T-shaped handle (12) through the rotating block (31). The rotating shaft is fixedly installed on the assembly table cabinet through the rotating bearing (32). The rotating shaft flips the plate (4) under the drive of the plate rotating power device. The plate (4) has a busbar hole (41) at the position corresponding to the circuit breaker busbar (65). The beam clamping device (2) and the plate rotating power device are connected to the control device on the assembly table cabinet. The control device is used to control the beam clamping device (2) and the plate rotating power device to perform beam clamping and plate flipping actions respectively.

2. The circuit breaker base assembly platform according to claim 1, characterized in that: The positioning block (11) includes an L-shaped positioning block (111) and a straight positioning block (112). The L-shaped positioning block (111) is fixed at the outermost corner of the base frame at the outermost part of the splice, and the straight positioning block (112) is fixed at the outer side of the base frame splice.

3. The circuit breaker base assembly platform according to claim 1, characterized in that: The beam clamping device (2) includes a clamping block (23), a fixing ring (22), and a clamping rotation device. The clamping block (23) is provided with a cam feature parallel to the plate (4). The clamping block (23) is fixed on the shaft of the clamping rotation device by the fixing ring (22). The shaft of the clamping rotation device is vertically fixed on the plate (4). When the clamping rotation device rotates, the cam feature of the clamping block (23) rotates in a plane parallel to the plate (4) and uses this feature to press the beam onto the base frame.

4. The circuit breaker base assembly platform according to claim 3, characterized in that: The clamping and rotating device uses a clamping and rotating cylinder (21).

5. The circuit breaker base assembly platform according to claim 1, characterized in that: The plate rotation power device uses a plate rotation mechanism to connect the rotating shaft of the plate rotation device (3) through a belt drive structure. The belt drive structure includes two synchronous pulleys (332) and a synchronous belt (331) that meshes with the two synchronous pulleys (332) and drives in parallel. One synchronous pulley (332) is fixed on the rotating shaft, and the other synchronous pulley (332) is fixed on the shaft of the plate rotation mechanism. The plate rotation mechanism is fixed in the assembly table cabinet.

6. The circuit breaker base assembly platform according to claim 5, characterized in that: The plate rotation mechanism uses a plate rotation cylinder (34).

7. The circuit breaker base assembly platform according to claim 1, characterized in that: The plate rotation device also includes a buffer device, which is evenly arranged below the edges of the plate (4) on both sides of the base frame splicing direction.

8. The circuit breaker base assembly platform according to claim 7, characterized in that: The buffer device uses a hydraulic buffer (35).

9. The circuit breaker base assembly platform according to claim 4 or 6, characterized in that: The control device uses a pneumatic solenoid valve (5).

10. The circuit breaker base assembly platform according to claim 1, characterized in that: The rotating block (31) and the plate (4) are positioned by a fixing pin (36) that runs vertically through both.

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