Rectangular enameled wire head flexible brush scraping rotary milling stripping system

Abstract

The invention relates to a flexible brushing and helical milling stripping system for a rectangular enameled wire head, and relates to a manufacturing technology of coils for a motor, a transformer, a converter and the like. Mainly aiming at technological updating of a common mechanical paint stripping technology in the motor and electric appliance coil production process, the system comprises two flexible brushing and helical milling heads and a wire positioning and clamping mechanism, wherein the two flexible brushing and helical milling heads have a rotating function, a playing function, an angle adjusting function, a limiting function and a speed change function; the flexible brushing and helical milling stripping system is characterized in that working tooth parts of the two flexible brushing and helical milling heads carry out flexible free stripping on the surface of the enameled wire head with appropriate hardness, appropriate flexibility, appropriate surface coarseness, appropriate angle and appropriate pressure and rotating speed at the specific position in contact with the enameled wire head; a flexible tool keeps flexible contact with the stripped part of the wire; the flexible contact pressure and helical milling speed are adjustable; when the flexible tool displaces in the direction of the wire, flexible extrusion scraping and stripping can be carried out on the enameled wire.

Description

technical field [0001] The invention relates to a method for stripping the paint skin of wire ends of enameled wires by flexible brush scraping and rotary milling. It is related to the coil manufacturing technology for motors, transformers, converters, etc. It is mainly aimed at the technical update of the mechanical paint stripping process commonly used in the production process of motors and electrical coils. The method of floating and self-centering paint peeling is adopted to achieve fast paint scraping and high efficiency. , Simple operation, convenient installation and debugging, low production cost and simple structure. Background technique [0002] The rectangular wire section (1.8~4.5×0.8~3.0mm) enameled wire used in the production process of various coils such as motors, transformers, and converters needs to be stripped (scraped) on the wire head to ensure welding. The smooth progress of the crimping process and the normal conduction of the current; at present, th...

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Problems solved by technology

[0003] 1. Manual scraping and paint burning process is a relatively common manual process. This method is to remove the paint skin by manual scraping or burning the paint skin with a slight fire. The process looks simple, but it is actually very complicated; the paint layer is extremely difficult to completely scrape off. , and it is easy to produce oxide layer and pollutants, which will affect the soldering quality; and it is also easy to cause mechanical damage to the enameled wire copper, leaving stress scars, reducing the strength of the wire, and making the product quality fluctuate due to human factors

[0004] 2. The chemical peeling process has been greatly improved compared with the process of manual scraping and burning the paint, and the efficiency and quality have been improved; but there are still the following disadvantages: since the paint peeling is completed by chemical reaction, strict cleaning must be carried out procedures to remove residues and avoid disconnection caused by corrosion; moreover, the paint remover is harmful to the human body, so it must be prevented from intruding into the eyes and skin when using it, and chemical wastewater will also pollute the environment.

[0005] 3. Mechanical paint stripping process. At present, it is more common to use a mechanical paint peeling machine to remove the paint. The most common is to use a gantry type paint peeling mechanism to scrape and peel off the paint. This kind of mechanical equipment has high production efficiency and quality; but from the structure There are still deficiencies in terms of methods and methods, for example: long-term working stability is poor, and the adjustment of equipment and tools is extremely inconvenient

[0006] In order to improve the efficiency and quality of paint stripping in coil production, during the research, we found that it is difficult to structurally improve the efficiency and quality of paint stripping with the existing gantry-type paint stripping equipment; because its stripping Patent leather knives rely on a rigid mechanical mechanism to realize the overall peeling of the paint. The blade moves up and down, forcing the sharp knife to cut into the paint and wire to perform hard scraping. In principle, it is difficult to ensure that the wire substrate is not damaged, because the overall peeling of the paint The blade directly cuts into the paint leather and wire, so it is difficult to control the cutting depth of the blade. The cutting depth is shallow, and the cleanliness of peeling off the paint is poor. After wear and tear, the depth of the cutting blade changes and it is difficult to guarantee the quality of the peeling. In addition, when the peeling blade is peeling, it needs to scrape in the direction of the length of the wire, which has a stretching effect on the wire as a whole, resulting in tensile deformation of the wire, which affects the peeling. Length Dimension Accuracy

Since the rigid contact is a hard contact, the peeling tool must be ground or replaced frequently to ensure that the quality and efficiency of the peeling are prevented from being cut into the wire by one side of the tool.

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