An automatic transformer needle cutting device

Abstract

The application relates to an automatic transformer needle shearing device and relates to the technical field of intelligent manufacturing, which comprises an operation shell, a supporting block is fixedly connected to the inside of the operation shell, a cutting mechanism is fixedly connected to the inner wall of the operation shell, a replacement mechanism is fixedly connected to the top of the cutting mechanism, and two square sliding blocks are fixedly connected to the inside of the supporting block; the cutting mechanism comprises a fixed disc, the top of the fixed disc is fixedly connected to the inner wall of the operation shell, a plurality of transformer shells are arranged on the top of the fixed disc, a plurality of round needles are arranged in the plurality of transformer shells, and a cylinder is fixedly connected to the inside of the operation shell. The application has the effects that a plurality of needles on a plurality of transformer shells can be simultaneously sheared, manual shearing is not needed, the fixed disc is fixed, and a shearing plate is operated through mechanical driving, so that the error of manual measurement and shearing is reduced.

Description

Technical Field

[0001] This application relates to the field of intelligent manufacturing technology, and in particular to an automatic needle-cutting device for a current transformer. Background Technology

[0002] During the production of instrument transformers, the round needles on their housings need to be cut to meet installation and performance requirements. Traditional needle cutting operations rely heavily on manual labor, requiring operators to cut each round needle on the transformer housing one by one. This is not only inefficient and unsuitable for mass production, but also prone to inconsistent needle cutting lengths due to manual measurement errors and uneven cutting force, affecting product quality stability.

[0003] The current transformer uses a wire clamping assembly to position and clamp the coil lead head, a transfer assembly to tighten the lead to prevent bending, and a wire cutting assembly (including upper and lower blades, cylinders, motors, and other power components) to perform the cutting. The electronic control system controls the parameters of each stage to ensure precise cutting.

[0004] In existing technologies, some current transformer needle cutting requires manual cutting of multiple needles on the transformer housing one by one, which is extremely inefficient and difficult to meet the needs of mass production. Manual operation relies on manual measurement and control of cutting force, which is prone to inconsistent cutting lengths due to human error, resulting in large errors and affecting product quality stability. Furthermore, long-term operation can easily cause operator fatigue, further reducing cutting accuracy and efficiency, and may also cause safety hazards due to improper operation. Therefore, an automatic current transformer needle cutting device is proposed to solve the above problems. Utility Model Content

[0005] The purpose of this application is to provide an automatic needle cutting device for current transformers, which aims to improve the problems of low efficiency, large error, unstable quality, easy reduction in accuracy and efficiency due to human fatigue, and safety hazards in the existing manual cutting of current transformer pins, making it difficult to meet the needs of mass production.

[0006] The automatic needle trimming device for a current transformer provided in this application adopts the following technical solution: An automatic needle-cutting device for a current transformer includes an operating housing, a support block fixedly connected inside the operating housing, a cutting mechanism fixedly connected to the inner wall of the operating housing, a replacement mechanism fixedly connected to the top of the cutting mechanism, and two square sliders fixedly connected inside the support block. The cutting mechanism includes a fixed plate, the top of which is fixedly connected to the inner wall of the operating housing. Multiple current transformer housings are provided on the top of the fixed plate, and multiple circular needles are installed inside the multiple current transformer housings. A cylinder is fixedly connected inside the operating housing, and a sliding plate is fixedly connected to the driving end of the cylinder. A shearing plate is provided at the bottom of the sliding plate, and a fixing component is fixedly connected to the top of the fixed plate. The above technical solution involves fixing the transformer housing and the circular needle onto a fixed plate using a fixing assembly. A cylinder drives a sliding plate to move a shearing plate, which shears the circular needle. A replacement mechanism allows for the replacement of the shearing plate, and a square slider assists the sliding plate in stabilizing its movement, thereby completing the automatic shearing of the transformer's circular needle.

[0007] As a further description of the above technical solution: The fixing assembly includes multiple fixing plates. The bottom of the fixing plate is fixedly connected to the top of the fixing disk. Two lead screws are fixedly connected to the right side of the fixing plate. The lead screws are threaded with a pressing plate and a nut. The above technical solution involves a fixing component connected to a fixing plate via a fixing plate, with a pressing plate on the right side of the screw thread engaging with a nut to achieve the pressing and fixing function.

[0008] As a further description of the above technical solution: The replacement mechanism includes two connecting blocks. The bottom of the connecting block is fixedly connected to the top of the sliding plate. A bolt is threaded inside the connecting block. A rotating plate is threaded outside the bolt. An extrusion column is fixedly connected to the bottom of the rotating plate. An L-shaped plate is rotatably connected to the outside of the extrusion column. A limit assembly is rotatably connected to the outside of the L-shaped plate. The above technical solution involves a fixing component that supports a lead screw via a fixing plate. The lead screw rotates, causing the extrusion plate to extrude the transformer housing. A nut locks the position of the extrusion plate to fix the housing.

[0009] As a further description of the above technical solution: The limiting assembly includes a fixed shaft, the fixed shaft is rotatably connected to the outside of the L-shaped plate, a baffle is fixedly connected to the top of the L-shaped plate, and two bolts are threadedly connected to the outside of the sliding plate. The above technical solution involves a replacement mechanism that connects to a sliding plate via a connecting block, and a rotating plate that is fixed by bolts. The rotating plate drives the extrusion column to rotate the L-shaped plate around the limiting assembly, thereby limiting or releasing the shearing plate to complete the replacement.

[0010] As a further description of the above technical solution: The outer side of the circular needle is slidably connected to the inside of the fixed plate, and the right side of the extrusion plate is rotatably connected to the left side of the nut; The above technical solution involves the circular needle sliding within the fixed plate, the right side of the extrusion plate rotating and connecting with the left side of the nut, and adjusting the position of the extrusion plate by the nut to fix the transformer housing containing the circular needle.

[0011] As a further description of the above technical solution: The left side of the extrusion plate is in contact with the right side of the transformer housing, the top of the shear plate is slidably connected to the bottom of the fixed plate, and the top of the shear plate is slidably connected to the bottom of the circular needle. The above technical solution involves the extrusion plate contacting the transformer housing on the left side for fixation, and the shearing plate sliding at the bottom of the fixed plate and contacting the bottom of the circular needle to shear the circular needle.

[0012] As a further description of the above technical solution: The second bolt is externally slidably connected to the inside of the shear plate, and the bottom of the baffle is in contact with the top of the shear plate; Through the above technical solution: bolt two is inserted into the inside of the shearing plate for auxiliary positioning, and the bottom of the baffle contacts the top of the shearing plate, together achieving the fixation and limiting of the shearing plate.

[0013] As a further description of the above technical solution: The bottom of the fixed shaft is fixedly connected to the top of the sliding plate, and the top of the square slider is fixedly connected to the bottom of the sliding plate. The above technical solution provides rotational support for the L-shaped plate by connecting the bottom of the fixed shaft to the top of the sliding plate, and the top of the square slider is connected to the bottom of the sliding plate to assist its stable sliding, thus ensuring the stable operation of the sliding plate and related components.

[0014] In summary, this application includes at least one of the following beneficial technical effects: 1. In this utility model, a fixed plate is used to support the transformer housing and the round needle. During the cutting process, the cylinder provides power, the drive end drives the sliding plate, and the sliding plate transmits the power to the cutting plate to complete the needle cutting action. Multiple needles on multiple transformer housings can be cut at the same time without manual cutting one by one. By fixing the fixed plate and mechanically driving the cutting plate, the error of manual measurement and cutting is reduced.

[0015] 2. In this utility model, the connecting block connects to the sliding plate, the rotating plate drives the extrusion column, the extrusion column causes the L-shaped plate to rotate around the fixed axis, the baffle on the L-shaped plate contacts or separates from the shearing plate, and needs to be replaced regularly, reducing the downtime of equipment due to the replacement of parts, improving the overall production efficiency, and the quick replacement function can flexibly switch the appropriate shearing plate, enabling the device to quickly respond to diverse production needs and enhance the versatility and adaptability of the equipment. Attached Figure Description

[0016] Figure 1 This is a perspective view of an automatic needle-cutting device for a current transformer according to the present invention. Figure 2 This is a schematic diagram of the sliding plate of an automatic needle-cutting device for a current transformer proposed in this utility model; Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 This is a schematic diagram of the square slider of an automatic needle-cutting device for a current transformer proposed in this utility model. Figure 5 for Figure 4 Enlarged view of point B in the middle.

[0017] Legend: 1. Operating housing; 2. Support block; 3. Cutting mechanism; 31. Fixed plate; 32. Current transformer housing; 33. Round needle; 34. Cylinder; 35. Sliding plate; 36. Shearing plate; 37. Fixing assembly; 371. Fixing plate; 372. Lead screw; 373. Extrusion plate; 374. Nut; 4. Replacement mechanism; 41. Connecting block; 42. Bolt one; 43. Rotating plate; 44. Extrusion column; 45. L-shaped plate; 46. Limiting assembly; 461. Fixed shaft; 462. Baffle; 463. Bolt two; 5. Square slider. Detailed Implementation

[0018] The following is in conjunction with the appendix Figure 1 -Appendix Figure 5 This application will be described in further detail below.

[0019] Example: An automatic needle-cutting device for a current transformer, referring to... Figures 1 to 3 The device includes an operating housing 1, which ensures the overall structural stability of the device, supports and integrates the orderly operation of various mechanisms, and has a support block 2 fixedly connected inside the operating housing 1. The support block 2 disperses the force during the operation of the device and maintains the stability of the internal layout. A cutting mechanism 3 is fixedly connected to the inner wall of the operating housing 1. The cutting mechanism 3 realizes the fixing and cutting operations of the current transformer housing 32 and the round needle 33. It is the key execution module to complete the automatic needle cutting task. A replacement mechanism 4 is fixedly connected to the top of the cutting mechanism 3. Two square sliders 5 are fixedly connected inside the support block 2. The cutting mechanism 3 includes a fixed plate 31, the top of which is fixedly connected to the inner wall of the operating housing 1. The fixed plate 31 adapts to different types of components through a slot and other structures to ensure accurate positioning during cutting and serves as the basic support for the cutting operation. Multiple current transformer housings 32 are installed on the top of the fixed plate 31. These housings are used to install circular needles 33, which must remain stable during cutting to ensure the cutting accuracy of the circular needles 33. Multiple circular needles 33 are installed inside the multiple current transformer housings 32 to facilitate precise cutting by the shearing plate 36 and achieve standardized length adjustment. The external surface of the circular needles 33... The right side of the extrusion plate 373 is rotatably connected to the left side of the nut 374 inside the fixed plate 31. The cylinder 34 is fixedly connected inside the operating housing 1. The cylinder 34 provides power for the shearing action and determines the start and stop of the shearing operation and the power intensity. The drive end of the cylinder 34 is fixedly connected to the sliding plate 35. The bottom of the sliding plate 35 is provided with the shearing plate 36. The sliding plate 35 transmits the driving force of the cylinder 34 to the shearing plate 36 and provides the installation base for the replacement mechanism 4. It is a key component for power transmission and component connection. The top of the fixed plate 31 is fixedly connected to the fixing component 37.

[0020] Specifically, the device includes an operating housing 1, with a support block 2 inside to distribute the force, a cutting mechanism 3 as the core, a fixed plate 31 to adapt to different components, a transformer housing 32 to install a round needle 33, a cylinder 34 to drive a sliding plate 35 to drive a shearing plate 36 to cut, a fixing component 37 to assist in fixing, and a replacement mechanism 4 and a square slider 5.

[0021] The fixing assembly 37 includes multiple fixing plates 371. The bottom of the fixing plate 371 is fixedly connected to the top of the fixing disk 31. The fixing plate 371 positions the lead screw 372 to ensure the stability of the movement adjustment of the extrusion plate 373. Two lead screws 372 are fixedly connected to the right side of the fixing plate 371. The lead screws 372 adjust the clamping force of the transformer housing 32 and are the core of the fixing assembly 37's adjustment. The external threads of the lead screws 372 are connected to the extrusion plate 373. The extrusion plate 373 generates extrusion force by contacting the housing, fixing the housing to the fixing disk 31 and ensuring that the housing does not shift during shearing. The left side of the extrusion plate 373 is connected to... The right side of the transformer housing 32 is in contact with the shearing plate 36. The top of the shearing plate 36 is slidably connected to the bottom of the fixed plate 31. The shearing plate 36 uses its own cutting edge structure to shear the round needle 33. It is the direct execution component to complete the shearing action. The top of the shearing plate 36 is slidably connected to the bottom of the round needle 33. The screw 372 is externally threaded with a nut 374. The screw 372 converts the rotational motion into the linear movement of the pressing plate 373, thereby adjusting the clamping force on the transformer housing 32. The nut 374 locks the position of the pressing plate 373, maintaining the fixed clamping force on the transformer housing 32 and preventing the pressing plate 373 from loosening during shearing. Specifically, the fixing component 37 includes a fixing plate 371, on which a lead screw 372 is connected to a pressing plate 373. The pressing plate 373 contacts the transformer housing 32. The lead screw 372 adjusts the clamping force, and the nut 374 locks its position. The shearing plate 36 slides at the bottom of the fixing plate 31 to cut the circular needle 33 with its cutting edge.

[0022] Reference Figure 4 , Figure 5 The replacement mechanism 4 includes two connecting blocks 41. Connecting blocks 41 transmit power and movement to the sliding plate 35 and are key components connecting the replacement mechanism 4 to the sliding plate 35. The bottom of the connecting block 41 is fixedly connected to the top of the sliding plate 35. Bolt 42 is threaded inside the connecting block 41. Bolt 42, by tightening or loosening, fixes the position of the rotating plate 43 and provides constraint for the rotation of the rotating plate 43 around it. The rotating plate 43 is threaded outside the bolt 42. The rotating plate 43, through the cooperation of the pressing column 44 and the L-shaped plate 45, achieves the limiting or loosening of the shearing plate 36. A pressing column 44 is fixedly connected to the bottom of the rotating plate 43. The pressing column 44 converts the movement of the rotating plate 43 into the limiting action of the L-shaped plate 45. It is the power transmission component of the replacement mechanism 4. The L-shaped plate 45 is rotatably connected to the outside of the pressing column 44. The L-shaped plate 45 contacts or separates from the shearing plate 36 through the baffle 462 to realize the limiting fixation or loosening of the shearing plate 36. It is the limiting actuator of the replacement mechanism 4. The L-shaped plate 45 is rotatably connected to the outside of the limiting component 46. The limiting component 46 precisely controls the position of the shearing plate 36, ensuring the stability of the shearing plate 36 during shearing operations and facilitating quick disassembly and assembly during replacement.

[0023] Specifically, in the replacement mechanism 4, the connecting block 41 is connected to the sliding plate 35, and the bolt 42 fixes the rotating plate 43. The rotating plate 43 has a pressing column 44, which makes the L-shaped plate 45 rotate around the limiting component 46. The shearing plate 36 is limited or released through the baffle 462, which facilitates replacement.

[0024] The limiting component 46 includes a fixed shaft 461, which ensures the stable rotation of the L-shaped plate 45 under the action of the extrusion column 44 and is the basic rotating component of the limiting component 46. The bottom of the fixed shaft 461 is fixedly connected to the top of the sliding plate 35, and the top of the square slider 5 is fixedly connected to the bottom of the sliding plate 35. The inside of the fixed shaft 461 is rotatably connected to the outside of the L-shaped plate 45. A baffle 462 is fixedly connected to the top of the L-shaped plate 45. When the baffle 462 is separated, it is easy to remove and replace the shearing plate 36. It is the direct action component of the limiting component 46. The outside of the sliding plate 35 is threadedly connected to a bolt 463. The bolt 463 plays a preliminary positioning and auxiliary fixing role for the installation position of the shearing plate 36 on the sliding plate 35. Together with the baffle 462, it ensures the stability of the shearing plate 36. The outside of the bolt 463 is slidably connected to the inside of the shearing plate 36. The bottom of the baffle 462 is in contact with the top of the shearing plate 36.

[0025] Specifically, the limiting component 46 includes a fixed shaft 461, which is connected to a sliding plate 35 for the L-shaped plate 45 to rotate. A baffle 462 on the L-shaped plate 45 contacts the shearing plate 36, facilitating replacement during separation. Bolt 2 463 passes through the shearing plate 36 and the sliding plate 35, providing auxiliary positioning and fixation, and working with the baffle 462 to stabilize the shearing plate 36.

[0026] Working principle: The current transformer housing 32 and the round needle 33 are supported by the fixed plate 31. The fixed plate 371 positions the lead screw 372 through the fixed component 37. The rotation of the lead screw 372 drives the extrusion plate 373 to move. With the locking of the nut 374, the current transformer housing 32 is extruded and fixed. During shearing, the cylinder 34 provides power, and the drive end drives the sliding plate 35. The sliding plate 35 transmits power to the shearing plate 36. The shearing plate 36 slides along the bottom of the fixed plate 31 and uses the cutting edge to accurately cut the round needle 33, completing the needle cutting action. Multiple needles on multiple current transformer housings 32 can be cut at the same time without manual cutting one by one. The fixed plate 31 fixation and mechanical drive of the shearing plate 36 reduce the error of manual measurement and cutting.

[0027] When the replacement mechanism 4 is working, the connecting block 41 connects to the sliding plate 35, and the bolt 42 fixes the rotating plate 43 and serves as the rotation fulcrum. The rotating plate 43 drives the extrusion column 44, which causes the L-shaped plate 45 to rotate around the fixed shaft 461. The baffle 462 on the L-shaped plate 45 contacts or separates from the shearing plate 36 to achieve limit or release. The bolt 463 assists in positioning the shearing plate 36, and the square slider 5 ensures the stability of the sliding plate 35. All components work together to complete the quick replacement and stable installation of the shearing plate 36. After long-term use, the cutting edge of the shearing plate 36 is prone to wear and needs to be replaced regularly to reduce the downtime caused by replacing parts and improve overall production efficiency. The quick replacement function can flexibly switch between suitable shearing plates 36, enabling the device to quickly respond to diverse production needs and enhance the versatility and adaptability of the equipment.

[0028] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. An automatic needle-cutting device for a current transformer, comprising an operating housing (1), characterized in that: The operating housing (1) is fixedly connected to a support block (2), the inner wall of the operating housing (1) is fixedly connected to a cutting mechanism (3), the top of the cutting mechanism (3) is fixedly connected to a replacement mechanism (4), and the support block (2) is fixedly connected to two square sliders (5). The cutting mechanism (3) includes a fixed plate (31), the top of which is fixedly connected to the inner wall of the operating housing (1). The top of the fixed plate (31) is provided with a plurality of current transformer housings (32), and a plurality of circular needles (33) are installed inside the plurality of current transformer housings (32). A cylinder (34) is fixedly connected inside the operating housing (1). A sliding plate (35) is fixedly connected to the driving end of the cylinder (34). A shearing plate (36) is provided at the bottom of the sliding plate (35). A fixing component (37) is fixedly connected to the top of the fixed plate (31).

2. The automatic needle-cutting device for a current transformer according to claim 1, characterized in that: The fixing assembly (37) includes multiple fixing plates (371), the bottom of the fixing plate (371) is fixedly connected to the top of the fixing disk (31), and two lead screws (372) are fixedly connected to the right side of the fixing plate (371). The lead screws (372) are connected to a pressing plate (373) by external threads, and the lead screws (372) are connected to a nut (374) by external threads.

3. The automatic needle-cutting device for a current transformer according to claim 1, characterized in that: The replacement mechanism (4) includes two connecting blocks (41). The bottom of the connecting block (41) is fixedly connected to the top of the sliding plate (35). The connecting block (41) is internally threaded with a bolt (42). The bolt (42) is externally threaded with a rotating plate (43). The bottom of the rotating plate (43) is fixedly connected with an extrusion column (44). The extrusion column (44) is externally rotatably connected with an L-shaped plate (45). The L-shaped plate (45) is externally rotatably connected with a limit assembly (46).

4. The automatic needle-cutting device for a current transformer according to claim 3, characterized in that: The limiting component (46) includes a fixed shaft (461), the fixed shaft (461) is rotatably connected to the outside of the L-shaped plate (45), a baffle (462) is fixedly connected to the top of the L-shaped plate (45), and a bolt (463) is threadedly connected to the outside of the sliding plate (35).

5. The automatic needle-cutting device for a current transformer according to claim 2, characterized in that: The outside of the round needle (33) is slidably connected to the inside of the fixed plate (31), and the right side of the extrusion plate (373) is rotatably connected to the left side of the nut (374).

6. The automatic needle-cutting device for a current transformer according to claim 2, characterized in that: The left side of the extrusion plate (373) is in contact with the right side of the transformer housing (32), the top of the shear plate (36) is slidably connected to the bottom of the fixed plate (31), and the top of the shear plate (36) is slidably connected to the bottom of the round needle (33).

7. The automatic needle-cutting device for a current transformer according to claim 4, characterized in that: The bolt 2 (463) is externally slidably connected to the inside of the shear plate (36), and the bottom of the baffle (462) is in contact with the top of the shear plate (36).

8. The automatic needle-cutting device for a current transformer according to claim 4, characterized in that: The bottom of the fixed shaft (461) is fixedly connected to the top of the sliding plate (35), and the top of the square slider (5) is fixedly connected to the bottom of the sliding plate (35).

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