Tool for cutting off redundant terminal enameled wire of motor iron core

Abstract

The utility model provides a tool for cutting off redundant terminal enameled wires of a motor iron core. The tool comprises a lower die; the upper die is arranged above the lower die and is connected with the lower die through a floating assembly; the sleeve column body is arranged at the top of the upper die and is used for positioning the motor iron core; the plurality of plug-in positioning bodies are arranged at the top of the upper die and distributed around the sleeve cylinder, and the plug-in positioning bodies are used for plug-in positioning of the head ends of the wiring terminals on the motor iron core; the cutters are arranged on the lower die and can penetrate through the upper die, the cutters correspond to the insertion positioning bodies one to one, cutting edges of the cutters are attached to the insertion positioning bodies, and in the initial state, the highest points of the cutters do not exceed the height of the tops of the insertion positioning bodies. According to the utility model, the motor iron core and the upper die move downwards together, and in the process of approaching the lower die, the cutter and the plug-in positioning body are staggered up and down, so that the cutting action of redundant enameled wires on the terminal is realized, the working efficiency is high, the processing quality is good, and the production efficiency is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of motor technology, specifically, it demonstrates a tooling for cutting off the enameled wire of excess terminals in a motor core. Background Technology

[0002] The stator core is an indispensable part of a motor. Multiple sets of enameled wire windings are wound on the frequency converter stator core. The ends of the enameled wires need to be connected to terminals, which are then fixed to the core insulation frame. During the process of accurately embedding the terminals into the core insulation frame, excess enameled wire at the terminal end may protrude, affecting insulation performance. Therefore, the excess enameled wire needs to be removed. Currently, the common method is to manually cut off this excess enameled wire. However, manual operation is inefficient, and inconsistent processing quality affects later use. Utility Model Content

[0003] The purpose of this invention is to provide a tooling for cutting off excess enameled wire from motor core terminals. It has a simple and practical structure, high consistency, and can remove excess enameled wire from multiple terminals at once.

[0004] The technical solution is as follows:

[0005] A tooling for cutting off excess enameled wire from motor core terminals, comprising:

[0006] Lower mold;

[0007] The upper mold is located above the lower mold and is connected to the lower mold by a floating component.

[0008] A cylindrical sleeve, located at the top of the upper mold, is used to position the motor core;

[0009] Several plug-in positioning bodies are located on the top of the upper mold and distributed around the sleeve column. The plug-in positioning bodies are used for the head end plug-in positioning of the wiring terminals on the iron core of the power supply.

[0010] Several cutters are located in the lower mold and can pass through the upper mold. Each cutter corresponds to a corresponding insertion positioning body, and the blade of the cutter is close to the insertion positioning body. In the initial state, the highest point of the cutter does not exceed the top height of the insertion positioning body.

[0011] Optionally, the insertion positioning body includes a base, a slot formed on the top surface of the base, and a support protruding from the top of the base. After the motor core is stamped, it can move downward relative to the sleeve column, and the head end of each terminal on the motor core can be inserted into the corresponding slot. The core insulation frame on it will also contact the support, indicating that the motor core has reached its lowest position.

[0012] One side of the base is provided with a guide groove that allows the cutter to pass vertically through. When the upper and lower molds are closed, the cutter can intersect with the insertion positioning body along the direction of the guide groove. The guide groove can ensure the stability of the cutter's position when cutting and avoid displacement deviation between the cutter and the insertion positioning body.

[0013] Optionally, the floating assembly includes a spring member disposed between the upper and lower molds and several guide shafts disposed on the lower mold, the guide shafts being movably inserted into and engaged with the upper mold. The main function of the guide shafts is to guide the movement direction of the upper mold and provide a guiding function, while the spring member provides compressive force and rebound force, so that the upper mold can automatically reset after closing with the lower mold.

[0014] Optionally, the top of the sleeve is formed with a contraction opening, and the lower part of the sleeve is formed into a conformal support that fits onto the motor core. The contraction opening is designed to facilitate the quick fitting of the motor core onto the sleeve, while the conformal support is designed to ensure that the motor core is stably fitted onto the sleeve, thus ensuring stability during the stamping process.

[0015] Optionally, there are four insertion positioning bodies, two of which are distributed on both sides of the sleeve column, and the other two are spaced apart and located on one side of the sleeve column. The number and position of the insertion positioning bodies correspond one-to-one with the number and position of the terminals on the motor core, so as to realize the cutting of excess enameled wire on all terminals.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: Based on the stamping principle, the motor core is positioned and fixed on the sleeve column, and the head end of the terminal on the motor core is inserted into the insertion positioning body. The stamping of the motor core continues, so that the motor core and the upper die move downward together until the upper die and the lower die are closed. During this process, the cutter and the insertion positioning body are staggered, thereby realizing the cutting action of excess enameled wire on the terminal. Compared with the traditional manual cutting method, this utility model has high working efficiency, good processing quality, and greatly improves production efficiency. Attached Figure Description

[0017] Figure 1 This is a front view schematic diagram of a tooling for cutting off excess enameled wire from motor core terminals according to an embodiment of the present invention;

[0018] Figure 2 This is a top view schematic diagram of a tooling for cutting off the enameled wire of excess terminals on a motor core, according to an embodiment of the present invention.

[0019] Figure 3 This is a top view of the insertion positioning body according to an embodiment of the present invention;

[0020] The relevant markings in the attached diagram are: 1-lower mold, 2-upper mold, 3-floating component, 4-sleeve column, 5-insertion positioning body, 6-cutting blade, 31-spring component, 32-guide shaft, 41-shrinkage opening, 42-contouring support, 51-base, 52-slot, 53-support body, 54-guide groove. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] This utility model provides a tooling for cutting off excess enameled wire from motor core terminals, to solve the technical problems mentioned in the background art. For example... Figure 1 , Figure 2 and Figure 3 As shown, specifically, it mainly includes a lower mold 1, an upper mold 2, a sleeve 4, several insertable positioning bodies 5, and several cutters 6. The upper mold 2 is located above the lower mold 1 and is connected to the lower mold 1 by a floating component 3, meaning that the upper mold 2 and the lower mold 1 can be closed and separated. The sleeve 4 is vertically positioned at the middle of the top of the upper mold 2, and is mainly used to position the motor core. That is, the motor core can be fitted onto the sleeve 4 under external force, and the motor core and the sleeve 4 can only slide relative to each other in the vertical direction, but cannot rotate relative to each other in the horizontal direction. Several insertable positioning bodies 5 are located together on the top of the upper mold 2, and these insertable positioning bodies 5 are distributed around the sleeve 4. 4. The four sides are arranged according to the position of the upper terminal of the motor core. The function of the plug-in positioning body 5 is to use for the head end plug-in positioning of the upper terminal of the motor core. Several cutters 6 are set vertically on the lower mold 1. These cutters can freely pass through the upper mold 2. The number and position of the cutters 6 correspond one-to-one with the number and position of the plug-in positioning body 5. The blade of the cutter 6 is close to the plug-in positioning body 5. The cutter 6 can complete the up-and-down interlacing action with the plug-in positioning body 5. It is worth noting that in the initial state, the highest point of the cutter 6 will not exceed the top height of the plug-in positioning body 5.

[0023] In this embodiment, the insertion positioning body 5 includes a base 51, a slot 52 formed on the top surface of the base 51, and a support body 53 protruding from the top of the base 51. After the motor core is stamped, it can move downward relative to the sleeve column, and the head end of each terminal on the motor core can be inserted into the slot accordingly. The core insulation frame on it will also contact the support body, indicating that the motor core has reached the lowest position.

[0024] There are four insertion positioning bodies 5. Two insertion positioning bodies 5 are distributed on both sides of the sleeve column 4, and the other two insertion positioning bodies 5 are spaced apart and located on one side of the sleeve column 4. From a top view, these four insertion positioning bodies 5 are arranged vertically and horizontally on the top side of the upper mold 2. The number and position of the insertion positioning bodies correspond one-to-one with the number and position of the terminals on the motor core, so as to realize the cutting of excess enameled wire on all terminals.

[0025] A guide groove 54 is provided on one side of the base 51, allowing one side of the cutter 6 to pass vertically. Part of the cutter 6 is located in the guide groove 54. When the upper and lower molds are closed, the cutter can intersect with the insertion positioning body along the setting direction of the guide groove. The guide groove can ensure the stability of the cutter's position during cutting and prevent displacement deviation between the cutter and the insertion positioning body, which would affect the enameled wire cutting action.

[0026] In this embodiment, the floating component 3 includes a spring 31 disposed between the upper mold 2 and the lower mold 1, and several guide shafts 32 disposed on the lower mold 1. The guide shafts 32 are movably inserted and engaged with the upper mold 2. The spring 31 is located at the middle position between the upper mold 2 and the lower mold 1. In the initial state, the spring 31 is in a naturally extended state. The guide shafts 32 are conventionally designed to be four in number, and the four guide shafts 32 are respectively disposed at the four corners of the lower mold 1. The main function of the guide shafts is to guide the movement direction of the upper mold and provide a guiding function, while the spring provides compressive force and rebound force, so that the upper mold can automatically reset after closing with the lower mold.

[0027] In this embodiment, a contraction opening 41 is formed at the top of the sleeve 4, and a contoured support 42 is formed below the middle of the sleeve 4 to engage with the motor core. The contraction opening is designed to facilitate the quick engagement of the motor core onto the sleeve, while the contoured support is designed to ensure that the motor core is stably fitted onto the sleeve, ensuring stability during the stamping process. This ensures that the motor core and the sleeve can only slide relative to each other in the vertical direction, and cannot rotate relative to each other in the horizontal direction.

[0028] When using the cutting fixture proposed in this embodiment: First, the motor core is correctly positioned and fitted onto the contraction opening 41 of the sleeve 4. The press applies a downward force to the motor core, causing it to be fitted downward onto the conformal support 42 of the sleeve 4. Simultaneously, the terminal ends on the motor core are inserted into the slots 52 of the insertion positioning body 5, and the insulating frame of the motor core contacts the support 53 of the insertion positioning body 5. The press continues to apply a downward force to the motor core, causing the motor core and the upper die 2 to move downward toward the lower die 1 together. At the same time, the cutter 6 forms an alternating vertical movement with the insertion positioning body 5. During this alternation, the cutting edge of the cutter 6 cuts off the excess enameled wire on the terminal. Afterward, the press stops applying force to the motor core, and the upper die 2 returns to its initial position under the action of the floating component 3. Finally, the processed motor core is removed from the sleeve 4. The above process is repeated.

[0029] The above descriptions are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and all such modifications and improvements fall within the protection scope of this utility model.

Claims

1. A cutting tool for cutting off excess terminal enameled wire of a motor core, characterized by, include: Lower mold (1); The upper mold (2) is located above the lower mold (1) and is connected to the lower mold (1) by a floating component (3); A sleeve column (4) is located on the top of the upper mold (2) and is used to position the motor core; Several plug-in positioning bodies (5) are set on the top of the upper mold (2) and distributed around the sleeve column (4). The plug-in positioning bodies (5) are used for plug-in positioning of the head end of the wiring terminal on the iron core of the power supply. Several cutters (6) are located on the lower mold (1) and can pass through the upper mold (2). Each cutter (6) corresponds to a plug-in positioning body (5), and the blade of the cutter (6) is close to the plug-in positioning body (5). In the initial state, the highest point of the cutter (6) does not exceed the top height of the plug-in positioning body (5).

2. The cutting tool for the excess terminal enameled wire of the motor core according to claim 1, characterized in that, The insertion positioning body (5) includes a base (51), a slot (52) opened on the top surface of the base (51), and a support (53) protruding from the top of the base (51).

3. The cutting tool for the excess terminal enameled wire of the motor core according to claim 2, characterized in that, A guide groove (54) is provided on one side of the substrate (51) so that one side of the cutter (6) can pass vertically.

4. The cutting tool for the excess terminal enameled wire of the motor core according to claim 1, characterized in that, The floating component (3) includes a spring (31) disposed between the upper mold (2) and the lower mold (1) and several guide shafts (32) disposed on the lower mold (1), with the several guide shafts (32) being movably inserted and engaged with the upper mold (2).

5. The cutting tool for the excess terminal enameled wire of the motor core according to claim 1, characterized in that, The top of the sleeve (4) forms a contraction opening (41), and the lower part of the sleeve (4) forms a conformal support (42) that is sleeved with the motor core.

6. The cutting tool for the excess terminal enameled wire of the motor core according to claim 1, characterized in that, There are four insertion positioning bodies (5), two of which are distributed on both sides of the sleeve column (4), and the other two insertion positioning bodies (5) are spaced apart on one side of the sleeve column (4).

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