A coil polishing device

Abstract

The utility model discloses a coil polishing device, including frame, set up driving assembly and two polishing head on the frame, two polishing head inclination setting, form the polishing gap between two polishing heads, driving assembly is used for driving two polishing head rotation. The utility model realizes the mechanization of coil polishing, and the polishing efficiency is low high, the consistency is good, and the polishing gap can be adjusted, and it is not easy to damage the wire base body and lead to broken line or recessive injury.

Description

Technical Field

[0001] This utility model relates to the field of brake manufacturing technology, and in particular to a coil polishing device. Background Technology

[0002] Brake coils (such as electromagnetic brakes and relay coils) are critical electromagnetic components in industrial and automotive fields. Their manufacturing process involves tightly winding copper or aluminum wire (i.e., enameled wire) covered with an insulating varnish film into coils. To ensure the reliability of the coil's electrical connections, the insulating varnish film must be removed from specific sections of the enameled wire at the start, end, or when tapping is required, to allow for welding or riveting. This process of removing the varnish film is commonly referred to as "varnish removal" or "varnish stripping."

[0003] Existing coating removal methods are mainly manual scraping: operators use blades, sandpaper, or special coating removal tools to manually scrape off the coating film. Although this method uses simple tools and is inexpensive, it has significant drawbacks, including low efficiency, poor consistency, easy damage to the wire substrate leading to wire breakage or hidden damage (thus affecting the long-term reliability of the coil), and high skill requirements for operators, making it difficult to meet the needs of modern mass production. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a coil polishing device that realizes mechanized coil polishing with high efficiency, good consistency, and adjustable polishing gap, making it less likely to damage the wire substrate and cause wire breakage or hidden damage.

[0005] The objective of this utility model is achieved through the following technical solution: A coil polishing device includes a frame, a drive assembly mounted on the frame, and two polishing heads. The two polishing heads are inclined and a polishing gap is formed between them. The drive assembly is used to drive the two polishing heads to rotate.

[0006] Furthermore, the drive assembly includes a drive motor, a rotating shaft, two main drive wheels, and two driven wheels. The rotating shaft is rotatably mounted on the frame and is drive-connected to the drive motor. The main drive wheels are mounted on the rotating shaft, and the driven wheels are connected to the grinding head. The main drive wheels are drive-connected to the driven wheels.

[0007] Furthermore, both the main drive wheel and the driven wheel are pulleys, and the main drive wheel and the driven wheel are connected by a drive belt.

[0008] Furthermore, the driven wheel is connected to a driven shaft, and a support cylinder is coaxially rotatably connected to the outside of the driven shaft. The support cylinder is connected to the frame, and the grinding head is connected to the driven shaft.

[0009] Furthermore, the driven shaft has a threaded hole at its end along the axial direction, and the grinding head has a screw at its end that is threadedly connected to the threaded hole.

[0010] Furthermore, the main drive wheel is composed of multiple pulleys with gradually changing diameters.

[0011] The beneficial effects of this utility model are: This invention enables mechanized coating of coils, resulting in high coating efficiency, good consistency, and adjustable grinding gap, thus reducing the risk of damaging the wire substrate and causing wire breakage or hidden damage. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of the coil polishing device in this embodiment of the present invention; Figure 2 This is a cross-sectional view of the grinding head; In the diagram, 1 is the frame; 2 is the grinding head; 3 is the drive motor; 4 is the shaft; 5 is the main drive wheel; 6 is the driven wheel; 7 is the support cylinder; and 8 is the screw. Detailed Implementation

[0013] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0014] See Figures 1-2 This utility model provides a technical solution: Example: like Figure 1 and Figure 2 As shown, a coil polishing device includes a frame 1, a drive assembly mounted on the frame 1, and two polishing heads 2. The two polishing heads 2 are inclined and a polishing gap is formed between them. The drive assembly is used to drive the two polishing heads 2 to rotate.

[0015] The drive assembly includes a drive motor 3, a rotating shaft 4, two main drive wheels 5 and two driven wheels 6. The rotating shaft 4 is rotatably mounted on the frame 1 and is connected to the drive motor 3. The main drive wheels 5 are mounted on the rotating shaft 4. The driven wheels 6 are connected to the grinding head 2 and are connected to the main drive wheels 5 and the driven wheels 6.

[0016] Both the main drive wheel 5 and the driven wheel 6 are pulleys, and they are connected by a drive belt.

[0017] The driven wheel 6 is connected to a driven shaft, and a support cylinder 7 is coaxially rotatably connected to the outside of the driven shaft. The support cylinder 7 is connected to the frame 1, and the grinding head 2 is connected to the driven shaft.

[0018] like Figure 2 As shown, the driven shaft has a threaded hole along its axial direction at its end, and the grinding head 2 has a screw 8 threadedly connected to the threaded hole at its end. This configuration allows control of the grinding gap by the depth to which the screw 8 is screwed into the threaded hole. If a larger grinding gap is needed, the screw 8 is screwed in deeper, facilitating adjustment of the amount of varnish applied to the coil. When the grinding gap is large, the amount of varnish applied is small, making the coil less prone to breakage.

[0019] The main drive wheel 5 consists of multiple pulleys with gradually varying diameters. This arrangement is to facilitate adjusting the rotational speed of the grinding head 2 when the drive belt is connected to pulleys of different diameters.

[0020] Among them, the grinding head 2 is existing technology. Its specific structure and working principle will not be described in detail here. It can be, but is not limited to, a cylinder with sandpaper wrapped around its exterior.

[0021] When in use, start the motor, and the motor drives the rotating shaft 4 to rotate. When the rotating shaft 4 rotates, it drives the driven shaft to rotate through the main drive wheel 5 and the driven wheel 6. The grinding head 2 on the driven shaft rotates synchronously. Then, when the coil enters the grinding gap, the grinding head 2 can grind the coil.

[0022] This invention enables mechanized coating of coils, resulting in high coating efficiency, good consistency, and adjustable grinding gap, thus reducing the risk of damaging the wire substrate and causing wire breakage or hidden damage.

[0023] The above description is merely a preferred embodiment of this utility model. It should be understood that this utility model is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the concept described herein through the above teachings or related technologies or knowledge. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of this utility model should be protected within the scope of the appended claims.

Claims

1. A coil polishing device, characterized in that: It includes a frame, a drive assembly mounted on the frame, and two grinding heads. The two grinding heads are inclined and a grinding gap is formed between them. The drive assembly is used to drive the two grinding heads to rotate.

2. The coil polishing device according to claim 1, characterized in that: The drive assembly includes a drive motor, a rotating shaft, two main drive wheels, and two driven wheels. The rotating shaft is rotatably mounted on the frame and is drive-connected to the drive motor. The main drive wheels are mounted on the rotating shaft, and the driven wheels are connected to the grinding head. The main drive wheels are drive-connected to the driven wheels.

3. The coil polishing device according to claim 2, characterized in that: Both the main drive wheel and the driven wheel are pulleys, and they are connected by a drive belt.

4. The coil polishing device according to claim 2, characterized in that: The driven wheel is connected to a driven shaft, and a support cylinder is coaxially rotatably connected to the outside of the driven shaft. The support cylinder is connected to the frame, and the grinding head is connected to the driven shaft.

5. The coil polishing device according to claim 4, characterized in that: The driven shaft has a threaded hole along its axial direction at its end, and the grinding head has a screw that is threadedly connected to the threaded hole at its end.

6. The coil polishing device according to claim 2, characterized in that: The main drive wheel consists of multiple pulleys with gradually changing diameters.

Images