A current transformer assembly processing device

Abstract

This invention provides a current transformer assembly and processing equipment, belonging to the technical field of current transformer processing equipment. It includes a machine body and a loading platform. An indexing plate is mounted on the top of the machine body, and multiple fixtures are equidistantly mounted above the indexing plate. A frame is fixedly connected to the top of the loading platform, and a fixed frame is provided on one side of the frame. A connecting frame is fixedly connected to the bottom of the fixed frame. A clamping mechanism is installed below the connecting frame, used to clamp and transfer the magnetic core assembly on the upper part of the loading platform. This invention, by setting a guide sleeve with a flared opening and a tapered cylindrical body, and linking it with the clamping mechanism, can automatically capture and constrain the wire during the downward movement of the magnetic core assembly. Simultaneously, the conical structure of the guide part generates a lateral guiding force upon contact with the housing, which helps to correct the housing position and ultimately accurately guides the wire into the threading hole. This achieves synchronous and aligned assembly of the wire and the magnetic core assembly, significantly improving the threading success rate and assembly accuracy.

Description

Technical Field

[0001] This invention relates to the field of current transformer processing equipment, and in particular to a current transformer assembly and processing equipment. Background Technology

[0002] As a key measurement and protection component in power systems, the assembly quality of current transformers directly affects the operational stability and measurement accuracy of electrical equipment. Current transformer assembly and processing equipment is mainly used to realize key processes such as automated alignment, pressing, and wire threading between the magnetic core assembly and the housing.

[0003] Currently, the common assembly methods for current transformers still largely rely on manual or semi-automatic equipment. When operating manually, workers need to manually pick up the magnetic core assembly and align it with the housing cavity. This method is not only inefficient, but also depends on the operator's skill level, making it difficult to guarantee the consistency of product assembly quality.

[0004] While existing automated equipment achieves automatic gripping and transfer of magnetic cores, it mainly focuses on the positional transfer of components. It lacks effective sorting and guidance for the free and loose wires led out from the magnetic core. After the equipment places the magnetic core in place, it cannot ensure that the wires are aligned with the corresponding wire holes on the housing. This leads to situations where the wires are squeezed out of the holes and bent, or stuck or broken due to positional misalignment during subsequent processes or final pressing. Therefore, this application provides a current transformer assembly and processing equipment to meet the requirements. Summary of the Invention

[0005] The purpose of this invention is to provide a current transformer assembly and processing equipment to solve the above-mentioned problems. By setting a guide sleeve with a flared mouth and a tapered cylinder, the equipment can automatically capture and constrain the wires during the downward movement of the magnetic core assembly, so as to realize the synchronous and centered assembly of the wires and the magnetic core assembly. This solves the problem mentioned in the background art that for the wires that are in a free and loose state led out from the magnetic core, there is a lack of effective sorting and guidance, and the equipment cannot ensure that the wires are aligned with the corresponding wire holes on the housing after the magnetic core is placed in place.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0007] A current transformer assembly and processing equipment includes a machine body and a loading platform. A dividing plate is mounted on the top of the machine body, and multiple fixtures are equidistantly mounted above the dividing plate. A frame is fixedly connected to the top of the loading platform, and a fixed frame is provided on one side of the frame. A connecting frame is fixedly connected to the bottom of the fixed frame. A clamping mechanism is installed below the connecting frame, used to clamp and transfer the magnetic core assembly on the upper part of the loading platform. A fixed bracket is fixedly connected to one side of the frame, and a crossbeam is slidably arranged within the fixed bracket. Guide sleeves are symmetrically slidably connected to the side of the crossbeam near the clamping mechanism. The guide sleeves are used to capture the wires on the magnetic core assembly and guide the wires into the wire-passing holes on the housing. The crossbeam and guide sleeves allow the equipment to actively organize the attached wires while transferring the magnetic core assembly, preparing for the synchronous assembly of the magnetic core assembly and wires.

[0008] Based on the above, the guide sleeve includes a tapered cylinder with a flared opening at the top to expand the range of wire collection. A guide portion is provided at the bottom of the tapered cylinder to guide the bottom of the tapered cylinder into the wire hole. The flared opening can efficiently gather scattered wires, while the guide portion can automatically guide and insert into the wire hole. It can also finely adjust the position of the housing upon contact to achieve alignment and initial fixation of the housing.

[0009] Furthermore, the tapered cylinder has a hollow structure, and an opening is provided on the side wall of the tapered cylinder, with the opening facing the connecting frame. The opening is tapered from top to bottom, and the opening facing the magnetic core can ensure that the wire can slide naturally into the cylinder. The tapered opening can continuously bind the wire during the downward movement, prevent it from coming out, and constrain and guide it to the wire hole at the bottom.

[0010] Furthermore, the crossbeam is provided with a groove, and a sliding plate is fixedly connected to one side of the guide sleeve. The sliding plate slides inside the groove, and a fastening screw is connected to the internal thread of the sliding plate. This structure allows for horizontal adjustment of the guide sleeve position, so that the guide sleeve can adapt to the threading position of different wires.

[0011] It is worth mentioning that the end of the fixed bracket is provided with a movable groove, and the end of the crossbeam slides inside the movable groove. A fixed column is fixedly connected inside the movable groove, and a spring is sleeved on the outside of the fixed column between the crossbeam and the bottom wall of the movable groove. This gives the crossbeam and guide sleeve vertical elasticity, and the spring provides upward support force to ensure its initial position.

[0012] Based on the above, a beam plate is fixedly connected to one side of the connecting frame, and a movable frame is slidably connected inside the beam plate. A metal elastic element is fixedly connected between the movable frame and the beam plate, and the elastic force of the metal elastic element is greater than the elastic force of the spring.

[0013] Compared with the prior art, the present invention has at least the following beneficial effects:

[0014] In the above solution, the current transformer assembly and processing equipment provided in this application, by setting a guide sleeve with a flared mouth and a tapered cylinder, and linking it with the clamping mechanism, can automatically capture and constrain the wire during the downward movement of the magnetic core assembly. At the same time, the conical structure of the guide part generates a lateral guiding force when it contacts the housing, which can help correct the position of the housing and finally accurately guide the wire into the wire hole, realizing the synchronous and centered assembly of the wire and the magnetic core assembly, which greatly improves the wire threading success rate and assembly accuracy.

[0015] The two-stage elastic displacement mechanism, consisting of springs and metal elastic elements, provides flexible stopping and pre-compression after the guide sleeve contacts the housing. The second stage, with stronger elastic displacement, allows the clamping mechanism to carry the magnetic core assembly and wires to complete the final pressing, avoiding damage to the magnetic core or housing from rigid impacts. Attached Figure Description

[0016] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the invention and, together with the specification, further serve to explain the principles of the invention and enable those skilled in the art to practice and use the invention.

[0017] Figure 1 This is an overall schematic diagram of the current transformer assembly and processing equipment of the present invention;

[0018] Figure 2 This is a three-dimensional schematic diagram of the indexing plate and fixture of the present invention;

[0019] Figure 3 This is a schematic diagram of the clamping mechanism of the present invention clamping the magnetic core assembly;

[0020] Figure 4 This is a schematic diagram showing the connection between the fixed bracket and the crossbeam of the present invention;

[0021] Figure 5 This is a three-dimensional schematic diagram of the crossbeam of the present invention;

[0022] Figure 6 This is a schematic diagram showing the connection between the crossbeam and the guide sleeve of the present invention;

[0023] Figure 7 This is a schematic diagram showing the position of the magnetic core assembly of the present invention during its first downward movement;

[0024] Figure 8 For the present invention Figure 7 Enlarged view of point A in the middle;

[0025] Figure 9 This is a schematic diagram showing the position of the magnetic core assembly of the present invention during its second downward movement;

[0026] Figure 10 For the present invention Figure 9 A magnified view of point B in the middle.

[0027] Figure label:

[0028] 1. Machine body; 101. Loading platform; 2. Indexing plate; 201. Fixture; 3. Frame; 4. Longitudinal linear module; 5. Vertical linear module; 6. Fixed frame; 7. Connecting frame; 8. Clamping mechanism; 9. Beam plate; 10. Movable frame; 11. Metal elastic component; 12. Fixed bracket; 121. Fixed column; 122. Spring; 13. Crossbeam; 131. Stop bar; 14. Guide sleeve; 141. Gradually narrowing cylinder; 1411. Opening; 142. Trumpet mouth; 143. Guide part; 144. Sliding plate; 145. Fastening screw.

[0029] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiments of the present invention. However, this is only for illustrative purposes and is not intended to limit the present invention to this specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs. Detailed Implementation

[0030] The following is a detailed description of a current transformer assembly and processing equipment provided by the present invention, in conjunction with the accompanying drawings and specific embodiments. It should be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments; those skilled in the art can also use other alternative methods to implement some known technologies; and the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present invention.

[0031] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.

[0032] Generally, terms can be understood at least partly from their use in context. For example, depending at least partly on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood not necessarily to convey an exclusive set of factors, but rather, alternatively, depending at least partly on the context, to allow for the presence of other factors that are not necessarily explicitly described.

[0033] It is understood that the meanings of “on”, “above”, and “above” in this invention should be interpreted in the broadest manner, such that “on” means not only “directly on” something, but also includes the meaning of being “on” something with an intervening feature or layer, and that “above” or “above” means not only “on” something, but also includes the meaning of being “on” something without an intervening feature or layer.

[0034] Furthermore, spatially related terms such as “below,” “under,” “lower,” “above,” and “upper” are used herein for convenience to describe the relationship of one element or feature to one or more other elements or features, as illustrated in the accompanying drawings. Spatially related terms are intended to cover different orientations in the use or operation of the device other than those depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially related descriptive terms used herein can be interpreted similarly.

[0035] like Figure 1 and Figure 2 As shown, an embodiment of the present invention provides a current transformer assembly and processing equipment, including a machine body 1 and a loading platform 101. A dividing plate 2 is mounted on the top of the machine body 1. The dividing plate 2 is driven by an intermittent divider (not shown in the figure) at its bottom to achieve precise intermittent rotation of the dividing plate 2, ensuring the accuracy of the actions at each station. Four fixtures 201 are equidistantly mounted above the dividing plate 2. Each fixture 201 has a groove with an open top for placing the housing (such as a lower cover), and a through groove (not shown in the figure) for accommodating wires is also provided within the groove. (As shown), the through groove can make way for the wire in the wire hole, so that its end can pass into the fixture 201, preventing the wire end from being crowded in the lower cover and unable to move down. The top of the loading platform 101 is fixedly connected to the frame 3. A fixed frame 6 is provided on one side of the frame 3. A longitudinal straight module 4 is fixedly connected to one side of the frame 3. A vertical straight module 5 is provided on one side of the longitudinal straight module 4. The fixed frame 6 slides on one side of the vertical straight module 5, and the moving end of the vertical straight module 5 is fixedly connected to the fixed frame 6. A connecting frame 7 is fixedly connected to the bottom of the fixed frame 6.

[0036] In this embodiment, as Figure 3As shown, a clamping mechanism 8 is installed below the connecting frame 7. The clamping mechanism 8 is used to clamp the magnetic core assembly (the iron core with the coil wound) on the upper part of the transfer loading platform 101. The clamping mechanism 8 includes jaws that are symmetrically slidably arranged inside the connecting frame 7. A bidirectional lead screw is rotatably connected inside the connecting frame 7. Both jaws are threadedly connected to the bidirectional lead screw. A stepper motor that drives the bidirectional lead screw to rotate is fixedly connected to the outside of the connecting frame 7. By driving the bidirectional lead screw to rotate through the stepper motor, the two jaws can be precisely controlled to move synchronously towards or away from each other, thereby clamping or releasing the magnetic core assembly to complete the clamping or assembly.

[0037] In this embodiment, as Figure 2 and Figure 4 As shown, a fixed bracket 12 is fixedly connected to one side of the frame 3. A crossbeam 13 is slidably arranged inside the fixed bracket 12. A movable groove is provided at the end of the fixed bracket 12, and the end of the crossbeam 13 slides inside the movable groove. A fixed column 121 is fixedly connected inside the movable groove. A spring 122 is sleeved on the outside of the fixed column 121 and between the crossbeam 13 and the bottom wall of the movable groove. This structure enables the crossbeam 13 and the guide sleeve 14 installed on it to have elastic sliding ability in the vertical direction. The elastic force of the spring 122 causes the crossbeam 13 to be pushed upward in its natural state and always in a preset position.

[0038] In this embodiment, as Figure 3 and Figure 4 As shown, a beam plate 9 is fixedly connected to one side of the connecting frame 7. A movable frame 10 is slidably connected inside the beam plate 9. A metal elastic element 11 is fixedly connected between the movable frame 10 and the beam plate 9. The elastic force of the metal elastic element 11 is greater than that of the spring 122. A stop rod 131 is fixedly connected to the top of the crossbeam 13. The top of the stop rod 131 is always in contact with the bottom of the movable frame 10. This structure, combined with the elastically floating crossbeam 13, forms a two-stage elastic displacement effect. The first stage is the spring 122 between the crossbeam 13 and the fixed support 12, and the second stage is the metal elastic element between the movable frame 10 and the beam plate 9. 11. Due to the greater elastic force of the metal elastic element 11, during the initial downward phase, the clamping mechanism 8 pushes the stop rod 131 through the connecting frame 7, beam plate 9, metal elastic element 11 and movable frame 10, thereby driving the entire crossbeam 13 to move downward against the elastic force of the spring 122. When the guide sleeve 14 is blocked by the housing and cannot continue to move downward, the crossbeam 13 stops moving. At this time, the downward force provided by the vertical linear module 5 will squeeze the metal elastic element 11, causing the connecting frame 7 to drive the clamping mechanism 8 and beam plate 9 to continue to move downward. At the same time, the magnetic core assembly and the wire on one side move downward again with the clamping mechanism 8 and enter the assembly position.

[0039] In this embodiment, as Figure 6As shown, a guide sleeve 14 is symmetrically slidably connected to one side of the crossbeam 13 near the clamping mechanism 8. A groove is provided inside the crossbeam 13. A sliding plate 144 is fixedly connected to one side of the guide sleeve 14. The sliding plate 144 slides inside the groove, and a fastening screw 145 is threaded inside the sliding plate 144. The guide sleeve 14 is used to capture the wires on the magnetic core assembly and guide the wires into the wire hole on the housing. Loosening the fastening screw 145 allows the horizontal position of the guide sleeve 14 to be adjusted along the groove of the crossbeam 13. Tightening the fastening screw 145 locks the sliding plate 144 onto the crossbeam 13. This design allows the guide sleeve 14 to flexibly adapt to different models of magnetic core assemblies or wires with different exit positions, thereby improving the versatility of the equipment.

[0040] In this embodiment, as Figure 5 As shown, the guide sleeve 14 includes a tapered cylindrical body 141. A flared opening 142 is provided at the top of the tapered cylindrical body 141. The wide opening of the flared opening 142 can expand the range for collecting the wire, ensuring smooth entry even if the wire's initial position is slightly off or loose. A guide portion 143 is provided at the bottom of the tapered cylindrical body 141. The guide portion 143 is a smooth conical or rounded structure, used to preferentially contact the housing during descent. When there is a horizontal position deviation, its inclined surface can generate a lateral guiding force, thereby assisting in alignment and ensuring the relative position of the tapered cylindrical body 141 and the wire-passing hole of the housing. This guide portion guides the bottom end of the tapered cylindrical body 141 into the wire-passing hole and can apply a certain compressive force to the housing during the downward pressing process. Under the action of the compressive force, the lower cover can be repositioned. Positioning and pressing fixation can improve the accuracy of the alignment and assembly of the magnetic core assembly and the lower cover. The tapered cylinder 141 is a hollow structure with an opening 1411 on its side wall, which faces the connecting frame 7 (i.e., the central area where the magnetic core assembly is clamped). The opening 1411 tapes down from top to bottom. This design allows the wires led out from the side of the magnetic core assembly to slide into the internal channel of the tapered cylinder 141 when it is clamped and moved down, and to continue moving down along the opening 1411. Under the constraint of the opening 1411, the wires can be moved from inside the tapered cylinder 141 into the wire hole. When the magnetic core assembly is installed inside the lower cover, the wires on one side are inserted into the wire hole, thus completing the synchronous assembly of the magnetic core assembly and the wires.

[0041] Working principle of the invention:

[0042] The housing is placed into the slot of a fixture 201 on the indexing plate 2 and positioned. The magnetic core assembly is placed on the loading platform 101. The indexing plate 2 rotates to send the fixture 201 carrying the housing to the assembly station. At this time, the clamping mechanism 8 is positioned above the loading platform 101. The clamping mechanism 8 is driven to descend by the vertical linear module 5. After the jaws close and clamp the magnetic core assembly, it rises. The vertical linear module 4 then drives the entire moving unit (including the fixed frame 6, connecting frame 7, clamping mechanism 8, etc.) to move horizontally, accurately transferring the magnetic core assembly to the housing directly above the assembly station.

[0043] The vertical linear module 5 drives the entire moving unit to begin a slow descent, as follows: Figure 7 and Figure 8 As shown, since the elastic force of the metal elastic element 11 is greater than that of the spring 122, the initial downward force is completely transmitted to the crossbeam 13 through the movable frame 10 and the stop bar 131, pushing the crossbeam 13 and the guide sleeve 14 to overcome the elastic force of the spring 122 and move downward. When the guide part 143 at the bottom of the guide sleeve 14 first contacts the inner wall of the wire hole on the housing, if there is a horizontal deviation, the lateral guiding force generated by its conical surface can make the housing produce a small adaptive slip, assisting the guide sleeve 14 to align with the wire hole of the housing and apply a preliminary pre-pressure to the housing. Since the wire is in a drooping state in the free state, after the magnetic core assembly is clamped and moved down, the end of the wire is guided into the tapered cylinder 141 through the flared mouth 142 and slides into the internal channel of the tapered cylinder 141 along the opening 1411 on the side of the guide sleeve 14.

[0044] like Figure 9 and Figure 10 As shown, when the guide sleeve 14 is blocked by the housing and cannot continue to descend, the crossbeam 13 stops. At this time, the downward force continuously provided by the vertical linear module 5 is blocked by the crossbeam 13, and its downward pressure begins to compress the metal elastic element 11 with greater elasticity. The metal elastic element 11 is compressed, causing the connecting frame 7 to drive the clamping mechanism 8, the magnetic core assembly, and the wire to continue to move downward a distance, so that the magnetic core assembly enters the assembly position of the housing. During this process, the wire in the tapered cylinder 141 moves downward with the magnetic core assembly in the opening 1411, passes through the guide part 143, and is accurately guided into the wire hole of the housing. At the same time, the magnetic core assembly body descends and is completely pressed against the housing mounting surface to complete the final assembly.

[0045] After assembly, the clamping mechanism 8 releases the magnetic core assembly. The vertical linear module 5 drives the connecting frame 7 to rise, and the metal elastic element 11 first rebounds to reset the clamping mechanism 8. Then, the stop rod 131 drives the crossbeam 13 and guide sleeve 14 to rise as a whole, with the spring 122 assisting in the reset. Finally, the longitudinal linear module 4 moves the clamping mechanism 8 back above the loading table 101, and the indexing plate 2 rotates to switch workpieces, entering the next cycle.

[0046] This invention encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this invention. To provide the public with a thorough understanding of this invention, specific details are described in detail in the following preferred embodiments; however, those skilled in the art will fully understand the invention even without these details. Furthermore, to avoid unnecessary misunderstanding of the essence of this invention, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0047] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A current transformer assembly and processing equipment, comprising a machine body (1) and a loading platform (101), wherein a dividing plate (2) is installed on the top of the machine body (1), and a plurality of jigs (201) are equidistantly installed above the dividing plate (2), and a frame (3) is fixedly connected to the top of the loading platform (101), characterized in that, A fixing frame (6) is provided on one side of the frame (3), and a connecting frame (7) is fixedly connected to the bottom of the fixing frame (6). A clamping mechanism (8) is installed below the connecting frame (7). The clamping mechanism (8) is used to clamp the magnetic core assembly on the upper part of the transfer loading platform (101). A fixed bracket (12) is fixedly connected to one side of the frame (3). A crossbeam (13) is slidably arranged inside the fixed bracket (12). A guide sleeve (14) is symmetrically slidably connected to the side of the crossbeam (13) near the clamping mechanism (8). The guide sleeve (14) is used to capture the wires on the magnetic core assembly and guide the wires into the wire hole on the housing. The guide sleeve (14) includes a tapered cylinder (141), the top of which is provided with a flared mouth (142) to expand the range of collecting wires, and the bottom of which is provided with a guide part (143) to guide the bottom of the tapered cylinder (141) into the wire hole. The tapered cylinder (141) is a hollow structure. An opening (1411) is provided on the side wall of the tapered cylinder (141), and the opening (1411) is directly opposite the connecting frame (7). The opening (1411) is tapered from top to bottom. The fixed bracket (12) has a movable groove at its end, and the end of the crossbeam (13) slides inside the movable groove. A fixed column (121) is fixedly connected inside the movable groove, and a spring (122) is sleeved on the outside of the fixed column (121) and between the crossbeam (13) and the bottom wall of the movable groove. A beam plate (9) is fixedly connected to one side of the connecting frame (7), and a movable frame (10) is slidably connected inside the beam plate (9). A metal elastic element (11) is fixedly connected between the movable frame (10) and the beam plate (9), and the elastic force of the metal elastic element (11) is greater than that of the spring (122). The top of the crossbeam (13) is fixedly connected to a stop bar (131), and the top of the stop bar (131) is always in contact with the bottom of the movable frame (10).

2. The current transformer assembly and processing equipment according to claim 1, characterized in that, The crossbeam (13) has a groove inside, and a sliding plate (144) is fixedly connected to one side of the guide sleeve (14). The sliding plate (144) slides inside the groove, and a fastening screw (145) is threaded inside the sliding plate (144).

3. The current transformer assembly and processing equipment according to claim 1, characterized in that, A longitudinal linear module (4) is fixedly connected to one side of the frame (3), and a vertical linear module (5) is provided on one side of the longitudinal linear module (4). The fixed frame (6) slides on one side of the vertical linear module (5), and the moving end of the vertical linear module (5) is fixedly connected to the fixed frame (6).

4. The current transformer assembly and processing equipment according to claim 1, characterized in that, The clamping mechanism (8) includes symmetrically sliding jaws inside the connecting frame (7), a bidirectional lead screw is rotatably connected inside the connecting frame (7), both jaws are threadedly connected to the bidirectional lead screw, and a stepper motor that drives the bidirectional lead screw to rotate is fixedly connected to the outside of the connecting frame (7).

5. The current transformer assembly and processing equipment according to claim 1, characterized in that, The fixture (201) has a groove with an open top for placing the housing, and a through groove for accommodating wires is provided inside the groove.

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