Flat coil stripping tool

Abstract

The utility model provides a kind of flat coil stripping tool, including tool shaft and tool head, tool head is connected with the first end of tool shaft, the second end of tool shaft is drivingly connected with rotary drive member, the material of tool head is abrasive and binder;Tool head is formed with annular groove, the width of annular groove is matched with the width of the front or side of flat coil, so that tool head can be mutually clamped with flat coil, annular groove covers the front or side of flat coil;The utility model is set through the tool head of carborundum material and annular groove, can better be matched with the corresponding surface of flat coil, the outer skin of flat coil is ground by high-speed rotation, improves operation stability, reliability, finally improves the quality of product.In addition, the various specifications of annular groove are set, and the front, side of flat coil is matched for different width dimensions, further improves the quality of flat coil stripping.

Description

Technical Field

[0001] This utility model relates to the field of electronic component processing technology, and in particular to a flat coil stripping tool. Background Technology

[0002] PFC inductors (Power Factor Correction inductors) are core components in power electronic devices such as charging piles. They are mainly used to optimize power utilization, reduce harmonic pollution, and improve system stability. A PFC inductor includes a magnetic core, winding posts, and coil (winding). Traditional designs typically use round coils, but these are gradually being replaced by flat coils. Flat coils offer advantages over round coils, including significantly reduced high-frequency losses, optimized heat dissipation and power density, enhanced mechanical stability and reliability, and reduced DC resistance. Therefore, they are better suited to the stringent efficiency and compactness requirements of infrastructure such as electric vehicle charging piles.

[0003] Flat coils are typically manufactured by the corresponding companies (also referred to as flat cables at the factory). For ease of storage and transportation, flat coils are covered with a soft outer sheath. Therefore, during the processing of PFC inductors, the outer sheath of the flat coil's connecting section needs to be removed. Traditionally, this is done manually, which is not only labor-intensive and inefficient, but also prone to excessive sheath removal, inconsistent work quality, and even damage to the internal copper foil. Therefore, specialized tools combined with mechanized equipment are needed to quickly and accurately remove the outer sheath. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of the aforementioned background technology by providing a tool suitable for peeling flat coils, which, when used with mechanized equipment, can fully and thoroughly peel the front and sides of flat coils.

[0005] To achieve the above objectives, this utility model provides a flat coil peeling tool, including a cutter shaft and a cutter head. The cutter head is connected to a first end of the cutter shaft, and the second end of the cutter shaft is connected to a rotary drive component. The material of the cutter head is an abrasive and a bonding agent.

[0006] The cutting head has an annular groove, the width of which matches the width of the front or side of the flat coil, so that the cutting head can engage with the flat coil, and the annular groove covers the front or side of the flat coil.

[0007] The annular groove has at least two specifications. In the first specification, the width of the annular groove matches the width of the front side of the flat coil, and in the second specification, the width of the annular groove matches the width of the side side of the flat coil.

[0008] Furthermore, the abrasive is diamond.

[0009] Furthermore, each of the cutting heads is provided with two annular grooves, one of which is the annular groove in normal use and the other is the spare annular groove.

[0010] Furthermore, the bends in the annular groove are all chamfered.

[0011] Furthermore, a keyway is provided at the second end of the cutter shaft, and the keyway is used to install a key.

[0012] Furthermore, the outer diameter of the cutter shaft is set to 4mm, the length of the entire cutter shaft is set to 40-50mm, and the length of the cutter head is set to 10-15mm.

[0013] The above-mentioned solution of this utility model has the following beneficial effects:

[0014] The flat coil stripping tool provided by this utility model, with its diamond-coated blade and annular groove, can better conform to the corresponding surfaces of the flat coil, including the front and sides. High-speed rotation removes the outer sheath of the flat coil, improving operational stability and reliability, and ultimately enhancing product quality. Furthermore, the various specifications of the annular groove facilitate matching to different widths of the front and sides of the flat coil, further improving the quality of flat coil stripping.

[0015] Other beneficial effects of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the cross-section of a flat coil.

[0018] [Explanation of Labels in the Attached Image]

[0019] 1-Cut shaft; 2-Cut head; 3-Flat coil; 4-Front side; 5-Side side; 6-Annular groove; 7-Keyway; Detailed Implementation

[0020] To make the technical problems, solutions, and advantages of this utility model clearer, a detailed description will be provided below with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0021] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a locking connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] like Figure 1 As shown, an embodiment of this utility model provides a flat coil peeling tool, including a cutter shaft 1 and a cutter head 2. The cutter head 2 is connected to a first end of the cutter shaft 1, and the second end of the cutter shaft 1 is used for transmission connection with a rotary drive component, such as a coupling keyed to the output shaft of a motor, so that the rotational output of the motor can drive the cutter shaft 1 and the cutter head 2 to rotate synchronously. Of course, a gear transmission structure or other configuration can be further incorporated to adjust the speed and torque.

[0024] In this embodiment, the cutter head 2 is formed using diamond abrasive and a binder and fixed to the first end of the cutter shaft 1. During the peeling operation of the flat coil 3, the entire cutter can move under the drive of the mechanized equipment, so that the cutter head 2 contacts the surface of the flat coil 3. Thus, the cutter head 2 rotates at high speed under the drive of the motor, and the diamond abrasive rubs against the outer skin at high speed to remove the outer skin. Finally, the copper foil at the corresponding position of the flat coil 3 is exposed, which facilitates electrical connection.

[0025] It should be noted that the method of molding the diamond abrasive and connecting it to the cutter shaft 1 is similar to the manufacturing method of a grinding wheel. In this case, the first end of the cutter shaft 1 serves as the base, and the diamond abrasive is firmly bonded to the first end of the cutter shaft 1 through a bonding agent, forming a cutter head 2 with a specific shape, size, and hardness. Of course, a mold with a preset shape needs to be prepared in advance, and it can be manufactured using a process similar to that of a grinding wheel. The process flow will not be elaborated here.

[0026] At the same time, such as Figure 2As shown, the cross-sectional profile of the flat coil 3 is rectangular, including two long sides (the width of the flat coil) and two short sides (the thickness of the flat coil), corresponding to the two front faces 4 and two side faces 5 of the area to be peeled from the flat coil 3. In this embodiment, the cutting head 2 has an annular groove 6, the width of which matches the width of the front or side face of the flat coil 3, so that the cutting head 2 can engage with the flat coil 3 through the annular groove 6. The annular groove 6 better covers the front or side face of the flat coil 3, achieving a more thorough peeling effect on the corresponding surface. This method also allows for better peeling at the transition between the front and side faces. In addition, based on the engagement of the annular groove 6 with the flat coil 3, the cutting head 2 can rotate more smoothly relative to the flat coil 3 at high speed, reducing the wobbling of the flat coil 3 relative to the cutting head 2.

[0027] Understandably, the width of the front side and the width of the side side of the flat coil 3 are significantly different. Therefore, the annular groove 6 should also have at least two specifications: the width of the annular groove 6 in the first specification matches the width of the front side of the flat coil 3, and the width of the annular groove 6 in the second specification matches the width of the side side of the flat coil 3. For the assembly line peeling process of the flat coil 3, the outer skin of the two front sides 4 of the flat coil 3 is usually peeled off first by the first mechanical device in front of the assembly line, and then the outer skin of the two side sides 5 of the flat coil 3 is peeled off by the second mechanical device behind the assembly line. Based on this, the specification of the cutter in the first mechanical device is that the annular groove 6 matches the width of the front side 4 of the flat coil 3, and the specification of the cutter in the second mechanical device is that the annular groove 6 matches the width of the side side 5 of the flat coil 3, so that the flat coil 3 can complete the peeling operation of (two) front sides 4 and (two) side sides 5 in sequence.

[0028] In a preferred embodiment, the edges of the annular groove 6 are all chamfered to accommodate the elasticity of the outer sheath of the flat coil 3, achieving a better fit. Additionally, this chamfering also better prevents wear and damage to the edges of the copper foil inside the flat coil 3.

[0029] It is worth mentioning that each cutter head 2 in the figure has two annular grooves 6, one of which is the normally used annular groove 6, and the other is usually reserved as a spare annular groove 6. When the normally used annular groove 6 is severely worn, which may affect the peeling effect, the installation position of the cutter or the actual processing position can be adjusted so that the spare annular groove 6 is aligned with the flat coil 3, thereby improving the service life of the cutter.

[0030] In this embodiment, a keyway 7 is provided at the second end of the cutter shaft 1, which is used to install a key and form a keyed connection with the coupling. In one specific embodiment, the cutter shaft 1 is set to an outer diameter of 4mm, the overall length of the cutter shaft 1 is set to 40-50mm, and the length of the cutter head is set to 10-15mm.

[0031] In summary, the flat coil stripping tool provided in this embodiment, through the use of a diamond-coated blade 2 and annular groove 6, can better conform to the corresponding surfaces of the flat coil 3, including the front and side surfaces. High-speed rotation removes the outer sheath of the flat coil 3, improving operational stability and reliability, and ultimately enhancing product quality. Furthermore, the various specifications of the annular groove 6 facilitate matching to different widths of the front 4 and side 5 surfaces of the flat coil 3, further improving the quality of stripping the flat coil 3.

[0032] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0033] The above embodiments are merely illustrative of several implementation methods of this application, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this application should be determined by the appended claims.

Claims

1. A flat coil peeling tool, characterized in that, It includes a cutter shaft and a cutter head, the cutter head being connected to a first end of the cutter shaft, and the second end of the cutter shaft being connected to a rotary drive component. The cutter head is made of abrasive and bonding agent. The cutting head has an annular groove, the width of which matches the width of the front or side of the flat coil, so that the cutting head can engage with the flat coil, and the annular groove covers the front or side of the flat coil. The annular groove has at least two specifications. In the first specification, the width of the annular groove matches the width of the front side of the flat coil, and in the second specification, the width of the annular groove matches the width of the side side of the flat coil.

2. The flat coil peeling tool according to claim 1, characterized in that, The abrasive is diamond.

3. The flat coil peeling tool according to claim 1, characterized in that, Each of the cutting heads is provided with two annular grooves, one of which is the annular groove in normal use and the other is the spare annular groove.

4. The flat coil peeling tool according to claim 1, characterized in that, The bends in the annular groove are all chamfered.

5. The flat coil peeling tool according to claim 1, characterized in that, The second end of the cutter shaft is provided with a keyway, which is used to install a key.

6. The flat coil peeling tool according to any one of claims 1-5, characterized in that, The outer diameter of the cutter shaft is set to 4mm, the length of the entire cutter shaft is set to 40-50mm, and the length of the cutter head is set to 10-15mm.

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