Transformer pin shearing device

Abstract

The invention provides a transformer pin shearing device, and belongs to the technical field of pin shearing. Comprising an upper seat and a lower seat, the upper seat is fixed at the top of the lower seat, a positioning mechanism is arranged at the top of the upper seat, and the positioning mechanism comprises a strip-shaped positioning seat and two L-shaped positioning strips which are fixed at the top of the upper seat. Through the arrangement of the strip-shaped positioning seat and the L-shaped positioning strip, a plurality of transformer bodies are sequentially placed in the strip-shaped positioning seat and are positioned through the elastic abutting assemblies, pin bodies of the transformer bodies slide into the strip-shaped gaps between the strip-shaped positioning seat and the L-shaped positioning strip from the end parts of the strip-shaped positioning seat, and after the transformer bodies are positioned, the pin bodies of the transformer bodies are positioned through the elastic abutting assemblies. The pin cutting mechanism moves to cut off pin bodies of a plurality of transformer bodies at the same time, operation is easy and convenient, the pin bodies do not need to be inserted into small holes, skew pin bodies can be cut after being automatically corrected, and therefore the shearing efficiency of the pin bodies is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of pin shearing, and particularly relates to a transformer pin shearing device. Background Art

[0002] The transformer on the circuit board has functions such as voltage conversion, isolation, and power transmission. After the production of the transformer is completed, pin shearing is carried out to meet the installation requirements, facilitate soldering, ensure that the transformer can be correctly installed on the circuit board, and ensure the soldering quality. When shearing the pins of the transformer, a pin shearing device is required. The pin shearing device mainly consists of a hole plate, a cylinder, and a cutter. The pins of the transformer are inserted into the small holes of the hole plate, and the small holes are used to position the pins of the transformer. At this time, the pins protrude from below the hole plate, and then the cylinder is started to move the cutter to cut off the pins protruding from below the hole plate. After cutting, the transformer can be removed from the hole plate.

[0003] When the common transformer pin shearing device is in use, the pins of the transformer are aligned with the small holes on the hole plate. After the pins pass through the small holes of the hole plate, the cylinder is started to make the cutter cut off the pins protruding from below the hole plate. However, in the actual use process, affected by the relatively thin pins and the small diameter of the small holes on the hole plate, the pins of the transformer are usually difficult to insert into the small holes of the hole plate. And when the pins of the transformer are skewed, manual correction of the pins is required to accurately insert them into the corresponding small holes, which is inconvenient for the positioning operation of the transformer pins, thus affecting the shearing efficiency of the transformer pins. Therefore, the present application provides a transformer pin shearing device to meet the requirements. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a transformer pin shearing device to solve the problems that it is difficult to insert the transformer pins into the small holes due to the relatively thin pins and the small diameter of the small holes on the hole plate, and at the same time, when the pins are skewed, manual correction is required, which is inconvenient for the positioning operation of the transformer pins, thus affecting the shearing efficiency of the transformer pins.

[0005] To solve the above technical problems, the present invention provides the following technical solutions: A transformer pin shearing device includes an upper seat and a lower seat. The upper seat is fixed on the top of the lower seat. A positioning mechanism is arranged on the top of the upper seat. The positioning mechanism includes a strip-shaped positioning seat fixed on the top of the upper seat and two L-shaped positioning strips. The strip-shaped positioning seat is located between the two L-shaped positioning strips. A plurality of transformer bodies are sequentially placed in the strip-shaped positioning seat. The pin bodies of the transformer bodies are located in the strip-shaped gap between the strip-shaped positioning seat and the L-shaped positioning strips. A pin cutting mechanism is arranged inside the upper seat; During operation, several transformer bodies are sequentially placed in the strip-shaped positioning seat. The pin bodies of the transformer bodies slide into the strip-shaped gap between the strip-shaped positioning seat and the L-shaped positioning strip from the end of the strip-shaped positioning seat. After the positioning of the transformer bodies is completed, the cutting mechanism moves to simultaneously cut off the pin bodies of several transformer bodies.

[0006] Preferably, an elastic pressing assembly is fixed to the inner wall of the strip-shaped positioning seat. The elastic pressing assembly includes a housing disposed in the strip-shaped positioning seat and a fixed block fixed in the strip-shaped positioning seat. The housing is installed in the strip-shaped positioning seat through a bracket. A movable rod is slidably connected to the inner wall of the housing. A first spring and a pressing block are respectively fixed at both ends of the movable rod. The end of the first spring is fixed to the inner wall of the housing on the side away from the pressing block. The side of the transformer body away from the fixed block is in contact with the side of the pressing block, and the side of the transformer body away from the pressing block is in contact with the side of the fixed block.

[0007] Preferably, an inclined guiding surface I is provided on the inner wall of the strip-shaped positioning seat for guiding the transformer body to slide into the strip-shaped positioning seat. Guiding surfaces II are provided on the outer wall of the strip-shaped positioning seat and the side surface of the L-shaped positioning strip for guiding the pin body to slide into the strip-shaped gap between the strip-shaped positioning seat and the L-shaped positioning strip.

[0008] Preferably, the cutting mechanism includes two bending plates disposed in the upper seat. A driving member is fixed to the top of the lower seat. The telescopic end of the driving member movably penetrates through the upper seat and is fixedly connected to the side surface of the bending plate. The bending plate is located below the strip-shaped positioning seat, and a tool holder is fixed to the top of the bending plate. A cutting tool is fixed in the tool holder. A plurality of V-shaped grooves corresponding to the positions of the pin bodies are formed on the side of the bending plate away from the driving member. A strip-shaped pressing groove is formed on the top of the bending plate, and the strip-shaped pressing groove communicates with the V-shaped grooves.

[0009] Preferably, a curved surface is provided at the bottom of the inner wall of the strip-shaped pressing groove, which bends downward.

[0010] Preferably, the side of the bending plate away from the driving member is an inclined surface for increasing the opening size of the V-shaped groove.

[0011] Preferably, an upper positioning assembly is provided on the top of the bending plate. The upper positioning assembly includes a plurality of square boxes disposed above the bending plate. The number of square boxes is twice the number of transformer bodies. A positioning frame is fixed to the bottom of the square box and is fixed to the top of the bending plate. A notch is formed on the top of the L-shaped positioning strip corresponding to the position of the square box. The square box is located in the notch. An upper positioning plate is slidably connected to the inner wall of the square box. A second spring is fixed to the side of the upper positioning plate away from the transformer body, and the end of the second spring away from the upper positioning plate is fixed to the side of the inner wall of the square box away from the transformer body. An arc-shaped groove is formed on the side surface of the upper positioning plate corresponding to the position of the pin body. A notch is formed on the top of the L-shaped positioning strip corresponding to the position of the upper positioning plate.

[0012] Preferably, a lower abutting component is arranged at the bottom of the bending plate. The lower abutting component includes a plurality of boxes fixed to the bottom of the bending plate. The number of boxes is twice the number of transformer bodies. A third spring is fixed to the bottom of the inner wall of the box. A square groove is formed in the bottom of the bending plate corresponding to the position of the box. A movable plate is slidably connected to the inner wall of the square groove. The bottom of the movable plate is fixedly connected to the top of the third spring. Two abutting blocks are fixed to the top of the movable plate. The number of abutting blocks corresponds to the number of pin bodies. A through groove is formed in the top of the inner wall of the square groove. The through groove communicates with the strip-shaped pressing groove. The abutting block is slidably connected in the through groove, and the upper surface of the abutting block is flush with the upper surface of the bending plate. The abutting block is located between the V-shaped groove and the cutting knife.

[0013] Preferably, an abutting groove is formed in the top of the abutting block. The bottom of the inner wall of the abutting groove is a downwardly curved arc surface, and the bottom of the inner wall of the abutting groove is located above the bottom of the inner wall of the strip-shaped pressing groove.

[0014] Preferably, a collection box is placed at the bottom of the lower seat. A handle is fixed to the side of the collection box.

[0015] Compared with the prior art, the present invention has at least the following beneficial effects: In the above solution, through the arrangement of the strip-shaped positioning seat and the L-shaped positioning strip, a plurality of transformer bodies are sequentially placed in the strip-shaped positioning seat and positioned by the elastic pressing component. The pin bodies of the transformer bodies slide into the strip-shaped gap between the strip-shaped positioning seat and the L-shaped positioning strip from the end of the strip-shaped positioning seat. After the positioning of the transformer bodies is completed, the pin cutting mechanism moves to cut the pin bodies of several transformer bodies at the same time. The operation is simple and convenient. There is no need to insert the pin bodies into small holes, and the skew pin bodies can also be automatically corrected before shearing, thereby improving the shearing efficiency of the pin bodies.

[0016] Through the arrangement of the bending plate, the V-shaped groove and the strip-shaped pressing groove, after the pin bodies are slid into the strip-shaped gap, the strip-shaped gap positions the pins in the front-back direction. Then when the pin bodies are sheared, the driving member drives the bending plate to move. The V-shaped groove on the bending plate can straighten the pin bodies that are inclined in the left-right direction. Then the bending plate continues to move to bend the vertically-shaped pin bodies into an L shape. Then the horizontal section of the L-shaped pin body enters the strip-shaped pressing groove. Under the action of the friction between the strip-shaped pressing groove and the horizontal section of the L-shaped pin body, the strip-shaped pressing groove pulls the L-shaped pin body, and pulls the vertical section of the L-shaped pin body into a vertical state, realizing the correction of the pin bodies that are inclined in the left-right direction. Through the cooperation of the strip-shaped gap and the strip-shaped pressing groove, it is ensured that the inclined pin bodies are straightened before shearing, thereby ensuring the height consistency of the shearing of the pin bodies at the bottom of multiple transformer bodies.

[0017] Through the setting of the upper positioning component, before the horizontal section of the L-shaped pin body contacts the lower abutting component, the upper positioning plate of the upper positioning component is driven by the bending plate, and the upper positioning plate presses on the upper half of the vertical section of the L-shaped pin body, realizing the positioning of the vertical section of the L-shaped pin body, preventing the horizontal section of the L-shaped pin body from being pulled by the strip-shaped pressing groove and causing the insulation paint layer at the connection between the pin body and the transformer body coil to crack, and ensuring the insulation integrity at the transformer body coil.

[0018] Through the setting of the lower abutting component, after the horizontal section of the L-shaped pin body enters the strip-shaped pressing groove, it starts to contact the abutting block of the lower abutting component. The abutting block presses against the horizontal section of the L-shaped pin body under the elastic force of the spring three, thereby increasing the friction between the strip-shaped pressing groove and the horizontal section of the L-shaped pin body, realizing the stable pulling of the vertical section of the pin body, increasing the pulling force acting on the vertical section of the L-shaped pin body, thereby improving the correction stability of the strip-shaped pressing groove for the vertical section of the L-shaped pin body, preventing the pin body from tilting again under its own elastic force after the subsequent separation of the lower abutting component from the pin body, and thus ensuring the neatness of multiple pin bodies after being cut again. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a front cross-sectional view of the transformer body of the present invention; Figure 3 is a right cross-sectional view of the bending plate of the present invention; Figure 4 is of the present invention Figure 3 enlarged view of the structure at A in; Figure 5 is a three-dimensional structure diagram of the bending plate of the present invention; Figure 6 is a three-dimensional structure diagram of the square box of the present invention; Figure 7 is a front cross-sectional view of the box body of the present invention; Figure 8 is a three-dimensional structure diagram of the square groove of the present invention; Figure 9 is a three-dimensional structure diagram of the strip-shaped pressing groove of the present invention; Figure 10 is a three-dimensional structure diagram of the abutting block of the present invention.

[0020] In the figure: 1, lower seat; 2, upper seat; 3, positioning mechanism; 4, strip-shaped positioning seat; 5, L-shaped positioning strip; 6, elastic pressing assembly; 7, housing; 8, movable rod; 9, pressing block; 10, fixed block; 11, first spring; 12, lead cutting mechanism; 13, driving member; 14, bending plate; 15, V-shaped groove; 16, strip-shaped pressing groove; 17, upper positioning assembly; 18, square box; 19, upper positioning plate; 20, second spring; 21, notch; 22, gap; 23, cutter; 24, tool holder; 25, lower abutting assembly; 26, box body; 27, movable plate; 28, abutting block; 29, abutting groove; 30, third spring; 31, square groove; 32, collection box; 33, transformer body; 34, lead pin body.

[0021] As shown in the figure, in order to clearly show the structure of the embodiments of the present invention, specific structures and devices are marked in the figure. However, this is only for illustrative purposes and is not intended to limit the present invention to this specific structure, device and environment. According to specific needs, those of ordinary skill in the art can adjust or modify these devices and environments, and such adjustments or modifications are still included within the scope of the appended claims. Detailed implementation manners

[0022] The following will describe in detail a transformer lead pin shearing device provided by the present invention with reference to the accompanying drawings and specific embodiments. At the same time, it should be noted here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments. For some well-known technologies, those skilled in the art can also adopt other alternative methods for implementation; moreover, the accompanying drawings are only for more specifically describing the embodiments and are not intended to specifically limit the present invention.

[0023] It should be noted that in the specification, references to "one embodiment", "embodiment", "exemplary embodiment", "some embodiments", etc. indicate that the described embodiments may include specific features, structures or characteristics, but not every embodiment necessarily includes such specific features, structures or characteristics. Additionally, when combining embodiments to describe specific features, structures or characteristics, implementing such features, structures or characteristics in combination with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the relevant art.

[0024] Generally, terms can be understood at least in part from their use in context. For example, at least in part depending 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 can be used to describe a combination of features, structures or characteristics in a plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey a set of exclusive factors, but rather, at least in part depending on the context, can allow for the existence of other factors that may not be explicitly described.

[0025] AsFigures 1 - 10 As shown in the figure, an embodiment of the present invention provides a transformer pin shearing device, which includes an upper seat 2 and a lower seat 1. The upper seat 2 is fixed on the top of the lower seat 1. A positioning mechanism 3 is arranged on the top of the upper seat 2. The positioning mechanism 3 includes a strip-shaped positioning seat 4 fixed on the top of the upper seat 2 and two L-shaped positioning strips 5. The strip-shaped positioning seat 4 is located between the two L-shaped positioning strips 5. A plurality of transformer bodies 33 are sequentially placed in the strip-shaped positioning seat 4. The pin bodies 34 of the transformer bodies 33 are located in the strip-shaped gap between the strip-shaped positioning seat 4 and the L-shaped positioning strips 5. A pin cutting mechanism 12 is arranged inside the upper seat 2; During operation, a plurality of transformer bodies 33 are sequentially placed in the strip-shaped positioning seat 4. The pin bodies 34 of the transformer bodies 33 slide into the strip-shaped gap between the strip-shaped positioning seat 4 and the L-shaped positioning strips 5 from the right end of the strip-shaped positioning seat 4. After the positioning of the transformer bodies 33 is completed, the pin cutting mechanism 12 moves to cut off the pin bodies 34 of the plurality of transformer bodies 33 at the same time. The strip-shaped positioning seat 4 and the L-shaped positioning strips 5 in the positioning mechanism 3 cooperate to quickly and conveniently position a plurality of transformer bodies 33, without the need to laboriously align the pin bodies 34 with small holes. The skewed pin bodies 34 can also be automatically corrected before shearing, greatly improving the positioning efficiency of the transformer bodies 33, and thus enhancing the shearing efficiency of the pin bodies 34. The pin cutting mechanism 12 can cut off the pin bodies 34 of a plurality of transformer bodies 33 at the same time, without separately shearing one by one, reducing the operation steps and improving the overall efficiency of the shearing process.

[0026] As Figure 1 and Figure 2 shown in the figure, in this embodiment, an elastic pressing assembly 6 is fixed on the inner wall of the strip-shaped positioning seat 4. The elastic pressing assembly 6 includes a housing 7 arranged in the strip-shaped positioning seat 4 and a fixing block 10 fixed in the strip-shaped positioning seat 4. The housing 7 is installed in the strip-shaped positioning seat 4 through a bracket. A movable rod 8 is slidably connected to the inner wall of the housing 7. Springs 11 and pressing blocks 9 are respectively fixed at both ends of the movable rod 8. The end of the spring 11 is fixed on the side of the inner wall of the housing 7 away from the pressing block 9. The side of the transformer body 33 away from the fixing block 10 is in contact with the side of the pressing block 9, and the side of the transformer body 33 away from the pressing block 9 is in contact with the side of the fixing block 10. The elastic pressing assembly 6 can use the elastic force of the spring 11 to firmly clamp a plurality of transformer bodies 33 between the pressing block 9 and the fixing block 10, ensuring that the transformer bodies 33 will not shake or displace in the strip-shaped positioning seat 4, and guaranteeing the stability and reliability of the positioning of the transformer bodies 33.

[0027] As Figure 5 and Figure 6As shown, in this embodiment, the inner wall of the strip-shaped positioning seat 4 is provided with an inclined guiding surface I, which is used to guide the transformer body 33 to slide into the strip-shaped positioning seat 4. The outer wall of the strip-shaped positioning seat 4 and the side surface of the L-shaped positioning strip 5 are provided with a guiding surface II, which is used to guide the pin body 34 to slide into the strip-shaped gap between the strip-shaped positioning seat 4 and the L-shaped positioning strip 5. The setting of the guiding surface I enables the transformer body 33 to slide into the strip-shaped positioning seat 4 more smoothly, reduces the obstruction during the placement process, and improves the placement efficiency. The guiding surface II increases the opening size of the feeding end of the strip-shaped gap. Even if the pin body 34 is greatly inclined in the front-back direction, it can still smoothly enter the strip-shaped gap under its guidance, avoiding the problem of inaccurate placement caused by the skew of the pin body 34, and further improving the stability and efficiency of the positioning of the transformer body 33 and the pin body 34.

[0028] As Figure 3 , Figure 4 and Figure 9 As shown, in this embodiment, the lead cutting mechanism 12 includes two bending plates 14 arranged in the upper seat 2. A driving member 13 is fixed to the top of the lower seat 1. The driving member 13 is a cylinder or an electric push rod. The telescopic end of the driving member 13 movably penetrates through the upper seat 2 and is fixedly connected to the side surface of the bending plate 14. The bending plate 14 is located below the strip-shaped positioning seat 4, and a tool holder 24 is fixed to the top of the bending plate 14. A cutting tool 23 is fixed in the tool holder 24. A number of V-shaped grooves 15 corresponding to the positions of the pin bodies 34 are formed on the side of the bending plate 14 away from the driving member 13. A strip-shaped pressing groove 16 is formed on the top of the bending plate 14, and the strip-shaped pressing groove 16 communicates with the V-shaped grooves 15. The driving member 13 drives the bending plate 14 to move. The V-shaped grooves 15 on the bending plate 14 can straighten the pin bodies 34 that are inclined in the left-right direction, making them in a vertical form. Then, the vertically formed pin bodies 34 are bent into an L shape, and at the same time, the pin bodies 34 that are originally in a vertical state can also be bent into an L shape. Then, using the friction force between the strip-shaped pressing groove 16 and the horizontal section of the L-shaped pin body 34, the vertical section of the L-shaped pin body 34 is pulled into a vertical state to realize the correction of the pin body 34. Finally, the pin body 34 is cut off by the cutting tool 23 in the tool holder 24 to ensure the height consistency of the cutting of the bottom pin bodies 34 of multiple transformer bodies 33, improve the cutting accuracy and quality of the pin bodies 34, and ensure the neatness of the pin bodies 34 after cutting.

[0029] As Figure 9As shown, in this embodiment, a curved surface is provided at the bottom of the inner wall of the strip-shaped groove 16, and the curved surface bends downward. The design of the curved surface at the bottom of the inner wall of the strip-shaped groove 16 that bends downward increases the contact area between the inner wall of the strip-shaped groove 16 and the horizontal section of the L-shaped pin body 34 when the horizontal section of the L-shaped pin body 34 contacts the strip-shaped groove 16, so as to generate a greater frictional force, and thus form a more effective pulling force on the vertical section of the L-shaped pin body 34. This curved surface can pull the vertical section that was originally tilted in the front-back and left-right directions into a vertical state, enhancing the correction effect on the tilt of the pin body 34, further ensuring that the pin body 34 is in an accurate position before shearing, and ensuring the accuracy and consistency of the shearing of the pin body 34.

[0030] As Figure 4 and Figure 9 shown, in this embodiment, the side of the bending plate 14 away from the driving member 13 is an inclined surface, and the inclined surface is used to increase the opening size of the V-shaped groove 15. The inclined surface on the side of the bending plate 14 away from the driving member 13 increases the opening size of the V-shaped groove 15, so that the pin body 34 that is tilted greatly in the left-right direction can smoothly enter the V-shaped groove 15. This design expands the adaptation range for the tilted pin body 34, improves the success rate of straightening the pin body 34, ensures that the subsequent bending and shearing operations can proceed smoothly, and guarantees the accuracy and reliability of the shearing of the pin body 34.

[0031] As Figure 4 and Figure 6As shown, in this embodiment, an upper positioning component 17 is provided at the top of the bending plate 14. The upper positioning component 17 includes a plurality of square boxes 18 arranged above the bending plate 14. The number of square boxes 18 is twice the number of transformer bodies 33. A positioning frame is fixed at the bottom of the square box 18. The positioning frame is fixed to the top of the bending plate 14. The positioning frame is composed of a positioning block and a support plate. The support plate is fixed on the positioning block. The positioning block is fixed on the bending plate 14. The support plate is fixed to the bottom of the square box 18, thereby realizing the installation and fixation of the square box 18. A notch 21 is provided at the top of the L-shaped positioning strip 5 corresponding to the position of the square box 18. The square box 18 is located within the notch 21. An upper positioning plate 19 is slidably connected to the inner wall of the square box 18. A second spring 20 is fixed to the side of the upper positioning plate 19 away from the transformer body 33. One end of the second spring 20 away from the upper positioning plate 19 is fixedly connected to the side of the inner wall of the square box 18 away from the transformer body 33. A groove is provided on the side surface of the upper positioning plate 19 corresponding to the position of the pin body 34. The groove is arc-shaped. A notch 22 is provided at the top of the L-shaped positioning strip 5 corresponding to the position of the upper positioning plate 19. Under the elastic force of the second spring 20, before the horizontal section of the L-shaped pin body 34 contacts the lower abutting component 25, the upper positioning plate 19 presses on the upper half of the vertical section of the L-shaped pin body 34. Through the arc-shaped groove provided on the side surface of the upper positioning plate 19 corresponding to the position of the pin body 34, precise positioning of the vertical section of the L-shaped pin body 34 is achieved, preventing the horizontal section of the L-shaped pin body 34 from being subjected to excessive pulling force from the strip-shaped pressing groove 16, resulting in cracking of the insulating paint layer at the connection between the pin body 34 and the coil of the transformer body 33, thereby ensuring the insulation integrity of the coil of the transformer body 33 and avoiding affecting the performance and safety of the transformer body 33 due to damage to the insulating layer. At the same time, when the square box 18 moves along with the bending plate 14, the second spring 20 is subjected to an increasing extrusion force from the square box 18, so that the pressure exerted by the upper positioning plate 19 on the vertical section of the L-shaped pin body 34 becomes greater and greater. Through the gradually increasing pressure, the vertical section of the L-shaped pin body 34 is also corrected, thereby ensuring the verticality of the vertical section of the L-shaped pin body 34.

[0032] As Figure 4 , Figure 5 , Figure 7 , Figure 8 and Figure 10As shown, in this embodiment, a lower abutting component 25 is provided at the bottom of the bending plate 14. The lower abutting component 25 includes a plurality of boxes 26 fixed to the bottom of the bending plate 14. The number of boxes 26 is twice the number of transformer bodies 33. A third spring 30 is fixed to the bottom of the inner wall of the box 26. A square groove 31 is formed in the bottom of the bending plate 14 corresponding to the position of the box 26. A movable plate 27 is slidably connected to the inner wall of the square groove 31. The bottom of the movable plate 27 is fixedly connected to the top of the third spring 30. Two abutting blocks 28 are fixed to the top of the movable plate 27. The number of abutting blocks 28 corresponds to the number of pin bodies 34. A through groove is formed in the top of the inner wall of the square groove 31, and the through groove communicates with the strip-shaped pressing groove 16. The abutting block 28 is slidably connected in the through groove, and the upper surface of the abutting block 28 is flush with the upper surface of the bending plate 14. The abutting block 28 is located between the V-shaped groove 15 and the cutting knife 23. Under the elastic force of the third spring 30 of the lower abutting component 25, when the horizontal section of the L-shaped pin body 34 enters the strip-shaped pressing groove 16, the horizontal section of the L-shaped pin body 34 can be tightly abutted, thereby increasing the friction between the strip-shaped pressing groove 16 and the horizontal section of the L-shaped pin body 34, realizing the stable pulling of the vertical section of the pin body 34, enhancing the pulling force acting on the vertical section of the L-shaped pin body 34, eliminating the residual stress generated by the skew in the vertical section of the L-shaped pin body 34, improving the correction stability of the strip-shaped pressing groove 16 for the vertical section of the L-shaped pin body 34, effectively preventing the pin body 34 from skewing again under its own elastic characteristics after the subsequent separation of the lower abutting component 25 from the pin body 34, ensuring the neatness of the cut multiple pin bodies 34, and improving the quality and consistency of the shearing of the pin body 34.

[0033] As Figure 7 and Figure 10 shown, in this embodiment, an abutting groove 29 is formed in the top of the abutting block 28. The bottom of the inner wall of the abutting groove 29 is a downwardly curved arc surface, and the bottom of the inner wall of the abutting groove 29 is located above the bottom of the inner wall of the strip-shaped pressing groove 16. The design of the downwardly curved arc surface of the inner wall of the abutting groove 29 at the top of the abutting block 28 can better fit the horizontal section of the L-shaped pin body 34, further increasing the contact area with the horizontal section of the L-shaped pin body 34, thereby increasing the friction. At the same time, the design that the bottom of the inner wall of the abutting groove 29 is located above the bottom of the inner wall of the strip-shaped pressing groove 16 can ensure the stable generation of the friction between the abutting groove 29 and the horizontal section of the L-shaped pin body 34, so as to more effectively cooperate with the strip-shaped pressing groove 16 to pull and correct the vertical section of the pin body 34, further improving the correction effect on the inclined pin body 34, ensuring that the pin body 34 is in an accurate position before shearing, and improving the precision and quality of the shearing of the pin body 34.

[0034] As Figure 1As shown, in this embodiment, a collection box 32 is placed at the bottom of the lower seat 1, and a handle is fixed on the side of the collection box 32. The collection box 32 placed at the bottom of the lower seat 1 is used to receive the cut pin bodies 34, so as to prevent the pin bodies 34 from being scattered in the workplace and keep the working environment clean. The handle on the side of the collection box 32 makes it convenient for the staff to carry the collection box 32, thereby facilitating the cleaning of the pin bodies 34 in the collection box 32.

[0035] Working principle: multiple transformer bodies 33 are placed in the strip positioning seat 4 in sequence, and the inclined guide surface 1 of the inner wall of the strip positioning seat 4 can guide the transformer body 33 to slide smoothly from the fixed block 10 into the strip positioning seat 4. At the same time, in the process of placing multiple transformer bodies 33 in the strip positioning seat 4 in sequence, since the number of transformer bodies 33 placed in the strip positioning seat 4 is fixed, when the last transformer body 33 is to be placed, it is affected by the elastic force of the elastic pressing component 6. At this time, half of the last transformer body 33 is suspended and the other half is located on the fixed block 10. The last transformer body 33 needs to be moved to squeeze the multiple transformer bodies 33 that have been placed, so that the pressing block 9 is squeezed by the transformer body 33 and drives the movable rod 8 to move along the inner wall of the shell 7 and squeeze the spring 11. The spring 11 is compressed and deformed. When the last transformer body 33 is separated from the fixed block 10, the transformer body 33 is pressed downward. The second guide surface 34 of the transformer body 33 is used to smoothly enter the strip gap between the strip positioning seat 4 and the L-shaped positioning strip 5, thereby realizing the preliminary positioning of the pin body 34 in the front-to-back direction. The design of the second guide surface increases the opening size of the feeding end of the strip gap, so that even if the pin body 34 is greatly tilted in the front-to-back direction, it can smoothly enter the strip gap through the guidance of the second guide surface. After the transformer body 33 is positioned, the driving member 13 at the top of the lower seat 1 starts, and its telescopic end drives the bending plate 14 to move. The inclined surface on the side of the bending plate 14 away from the driving member 13 increases the opening of the V-shaped groove 15, enabling the pin body 34 with a large inclination in the left-right direction to smoothly enter the V-shaped groove 15. The inclined inner wall of the V-shaped groove 15 can straighten the inclined pin body 34 to make it in a vertical form. As the bending plate 14 continues to move, the bending plate 14 bends the vertically formed pin body 34 into an L shape. The horizontal section of the L-shaped pin body 34 enters the strip-shaped pressing groove 16 at the top of the bending plate 14. At this time, the top of the horizontal section of the L-shaped pin body 34 is in contact with the bottom of the strip-shaped positioning seat 4. After the contact, it prevents the horizontal section of the L-shaped pin body 34 from warping upwards, ensuring that the friction force between the horizontal section of the L-shaped pin body 34 and the inner wall of the strip-shaped pressing groove 16 is stably generated. Due to the curved surface at the bottom of the inner wall of the strip-shaped pressing groove 16 that bends downwards, when the horizontal section of the L-shaped pin body 34 contacts the strip-shaped pressing groove 16, the friction force generated by the curved surface can pull the vertical section of the L-shaped pin body 34, pulling the vertical sections that may be inclined in the front, rear, left, and right directions into a vertical state, realizing the correction of the inclination of the pin body 34 in the front, rear, left, and right directions, and ensuring that the pin body 34 is in an accurate position before shearing; Before the horizontal section of the L-shaped pin body 34 enters the strip-shaped pressing groove 16 and contacts the lower abutting component 25, the upper positioning component 17 at the top of the bending plate 14 comes into play. During the movement of the bending plate 14, the positioning frame drives the square box 18 to move. The square box 18 drives the upper positioning plate 19 to move through the elastic force of the second spring 20 and passes through the notch 22. When the upper positioning plate 19 contacts the vertical section of the L-shaped pin body 34, the upper positioning plate 19 is pressed on the upper half of the vertical section of the L-shaped pin body 34 under the elastic force of the second spring 20. Through the arc-shaped groove opened on the side surface of the upper positioning plate 19 corresponding to the position of the pin body 34, the positioning of the vertical section of the L-shaped pin body 34 is realized, preventing the horizontal section of the L-shaped pin body 34 from being pulled too hard by the strip-shaped pressing groove 16, resulting in the cracking of the insulating paint layer at the connection between the pin body 34 and the coil of the transformer body 33, thereby ensuring the insulation integrity at the coil of the transformer body 33; After the horizontal section of the L-shaped pin body 34 enters the strip-shaped pressing groove 16, it begins to contact the abutting block 28 of the lower abutting assembly 25. The arc surface in the inner wall of the abutting groove 29 at the top of the abutting block 28 fits with the horizontal section of the L-shaped pin body 34. Under the reaction force of the horizontal section, the abutting block 28 moves downward until the arc surface at the top of the abutting block 28 coincides with the curved surface at the bottom of the inner wall of the strip-shaped pressing groove 16. When the abutting block 28 moves downward, it drives the movable plate 27 to move downward along the inner wall of the square groove 31 and squeezes the third spring 30. The abutting block 28 moves upward under the elastic force of the third spring 30 and abuts against the bottom of the horizontal section of the L-shaped pin body 34, realizing stable pulling of the vertical section of the pin body 34, enhancing the pulling force acting on the vertical section of the L-shaped pin body 34, eliminating the residual stress generated by skew in the vertical section of the L-shaped pin body 34, improving the correction stability of the strip-shaped pressing groove 16 for the vertical section of the L-shaped pin body 34, effectively preventing the pin body 34 from skewing again under its own elastic characteristics after the subsequent separation of the lower abutting assembly 25 and the pin body 34, and ensuring the neatness of multiple pin bodies 34 after cutting; When the pin body 34 is completed in positioning, straightening, bending and correction, the cutter 23 in the tool holder 24 moves under the drive of the bending plate 14 and contacts the vertical section of the L-shaped pin body 34. The lower half of the vertical section of the L-shaped pin body 34 is cut off by the cutter 23. After cutting, the telescopic end of the driving member 13 contracts to drive the bending plate 14 to move in the reverse direction. The bending plate 14 drives the upper positioning assembly 17 and the lower abutting assembly 25 to move in the reverse direction. During the reverse movement of the upper positioning assembly 17, the square box 18 no longer squeezes the second spring 20 until the second spring 20 returns to its initial uncompressed state. Then the square box 18 drives the upper positioning plate 19 to move in the reverse direction through the second spring 20 and separates from the pin body 34. During the reverse movement of the lower abutting assembly 25, after the pin body 34 to be cut off separates from the bottom of the strip-shaped positioning seat 4, the movable plate 27 drives the abutting block 28 to move upward under the elastic force of the third spring 30. When the abutting block 28 moves upward, it jacks up one end of the cut-off pin body 34, causing the pin body 34 to slide downward along the inner wall of the strip-shaped pressing groove 16 into the collection box 32. By the way of the abutting block 28 moving upward to jack up the cut-off pin body 34, it is ensured that the cut-off pin body 34 smoothly falls into the collection box 32, preventing the cut-off pin body 34 from remaining in the bending plate 14 or the strip-shaped pressing groove 16 and affecting subsequent re-shearing. When the bending plate 14 moves back to its initial non-moved position, the transformer body 33 after the shearing process is pulled up in sequence, and taken off from the strip-shaped positioning seat 4. After taking off, the pressing block 9 is no longer squeezed by the transformer body 33. At this time, the movable rod 8 drives the pressing block 9 to move in the reverse direction to its initial non-moved position under the elastic force of the first spring 11 and waits for reuse.

[0036] The present invention covers any alternatives, modifications, equivalent methods and solutions made within the spirit and scope of the present invention. For the public to have a thorough understanding of the present invention, specific details are described in detail in the above preferred embodiments of the present invention, and those skilled in the art can fully understand the present invention without the description of these details.

[0037] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A transformer pin shearing device, characterized in that, It includes an upper seat (2) and a lower seat (1). The upper seat (2) is fixed on the top of the lower seat (1). A positioning mechanism (3) is arranged on the top of the upper seat (2). The positioning mechanism (3) includes a strip-shaped positioning seat (4) fixed on the top of the upper seat (2) and two L-shaped positioning strips (5). The strip-shaped positioning seat (4) is located between the two L-shaped positioning strips (5). A number of transformer bodies (33) are sequentially placed in the strip-shaped positioning seat (4). The pin bodies (34) of the transformer bodies (33) are located in the strip-shaped gap between the strip-shaped positioning seat (4) and the L-shaped positioning strips (5). A pin-cutting mechanism (12) is arranged inside the upper seat (2). During operation, a number of transformer bodies (33) are sequentially placed in the strip-shaped positioning seat (4). The pin bodies (34) of the transformer bodies (33) slide into the strip-shaped gap between the strip-shaped positioning seat (4) and the L-shaped positioning strips (5) from the end of the strip-shaped positioning seat (4). After the positioning of the transformer bodies (33) is completed, the pin-cutting mechanism (12) moves to cut off the pin bodies (34) of a number of transformer bodies (33) simultaneously.

2. The transformer pin shearing device according to claim 1, wherein, An elastic pressing component (6) is fixed on the inner wall of the strip-shaped positioning seat (4). The elastic pressing component (6) includes a housing (7) arranged in the strip-shaped positioning seat (4) and a fixing block (10) fixed in the strip-shaped positioning seat (4). The housing (7) is installed in the strip-shaped positioning seat (4) through a bracket. A movable rod (8) is slidably connected to the inner wall of the housing (7). A first spring (11) and a pressing block (9) are respectively fixed at both ends of the movable rod (8). The end of the first spring (11) is fixed on the side of the inner wall of the housing (7) away from the pressing block (9). The side of the transformer body (33) away from the pressing block (9) is in contact with the side of the pressing block (9), and the side of the transformer body (33) away from the pressing block (9) is in contact with the side of the fixing block (10).

3. The transformer pin shearing device according to claim 1, characterized in that, An inclined guiding surface one is arranged on the inner wall of the strip-shaped positioning seat (4). The guiding surface one is used to guide the transformer body (33) to slide into the strip-shaped positioning seat (4). A guiding surface two is arranged on the outer wall of the strip-shaped positioning seat (4) and the side surface of the L-shaped positioning strip (5). The guiding surface two is used to guide the pin body (34) to slide into the strip-shaped gap between the strip-shaped positioning seat (4) and the L-shaped positioning strips (5).

4. The transformer pin shearing device according to claim 1, wherein, The pin-cutting mechanism (12) includes two bending plates (14) arranged inside the upper seat (2). A driving member (13) is fixed on the top of the lower seat (1). The telescopic end of the driving member (13) movably penetrates through the upper seat (2) and is fixedly connected to the side surface of the bending plate (14). The bending plate (14) is located below the strip-shaped positioning seat (4), and a tool holder (24) is fixed on the top of the bending plate (14). A cutting tool (23) is fixed in the tool holder (24). A number of V-shaped grooves (15) corresponding to the positions of the pin bodies (34) are opened on the side of the bending plate (14) away from the driving member (13). A strip-shaped pressing groove (16) is opened on the top of the bending plate (14). The strip-shaped pressing groove (16) is communicated with the V-shaped grooves (15).

5. The transformer pin shearing device according to claim 4, characterized in that A curved surface is arranged at the bottom of the inner wall of the strip-shaped pressing groove (16), and the curved surface bends downward.

6. The transformer pin shearing device according to claim 4, characterized in that, One side of the bending plate (14) away from the driving member (13) is an inclined surface, and the inclined surface is used to increase the opening size of the V-shaped groove (15).

7. The transformer pin shearing device according to claim 4, wherein, An upper positioning assembly (17) is arranged at the top of the bending plate (14). The upper positioning assembly (17) includes a plurality of square boxes (18) arranged above the bending plate (14). The number of the square boxes (18) is twice the number of the transformer bodies (33). A positioning frame is fixed at the bottom of the square box (18), and the positioning frame is fixed at the top of the bending plate (14). A notch (21) is formed at the top of the L-shaped positioning strip (5) corresponding to the position of the square box (18). The square box (18) is located in the notch (21). An upper positioning plate (19) is slidably connected to the inner wall of the square box (18). A second spring (20) is fixed to one side of the upper positioning plate (19) away from the transformer body (33). One end of the second spring (20) away from the upper positioning plate (19) is fixedly connected to one side of the inner wall of the square box (18) away from the transformer body (33). A groove is formed in the side surface of the upper positioning plate (19) corresponding to the position of the pin body (34). The groove is arc-shaped. A notch (22) is formed at the top of the L-shaped positioning strip (5) corresponding to the position of the upper positioning plate (19).

8. The transformer pin shearing device according to claim 4, wherein, A lower abutting assembly (25) is arranged at the bottom of the bending plate (14). The lower abutting assembly (25) includes a plurality of boxes (26) fixed at the bottom of the bending plate (14). The number of the boxes (26) is twice the number of the transformer bodies (33). A third spring (30) is fixed to the bottom of the inner wall of the box (26). A square groove (31) is formed at the bottom of the bending plate (14) corresponding to the position of the box (26). A movable plate (27) is slidably connected to the inner wall of the square groove (31). The bottom of the movable plate (27) is fixedly connected to the top of the third spring (30). Two abutting blocks (28) are fixed to the top of the movable plate (27). The number of the abutting blocks (28) corresponds to the number of the pin bodies (34). A through groove is formed at the top of the inner wall of the square groove (31), and the through groove is communicated with the strip-shaped pressing groove (16). The abutting block (28) is slidably connected in the through groove, and the upper surface of the abutting block (28) is flush with the upper surface of the bending plate (14). The abutting block (28) is located between the V-shaped groove (15) and the cutter (23).

9. The transformer pin shearing device according to claim 8, wherein, An abutting groove (29) is formed at the top of the abutting block (28). The bottom of the inner wall of the abutting groove (29) is a downwardly curved arc surface, and the bottom of the inner wall of the abutting groove (29) is located above the bottom of the inner wall of the strip-shaped pressing groove (16).

10. The transformer pin shearing device according to claim 1, wherein, A collection box (32) is placed at the bottom of the lower seat (1). A handle is fixed to the side surface of the collection box (32).

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