Cake type coil fixture

Abstract

The invention relates to a cake type coil fixture and particularly relates to process equipment for winding a transformer coil, belonging to the technical field of winding and manufacturing of transformer coils. The invention adopts the technical scheme that the cake type coil fixture comprises a handle (1), a screw rod (2), a sliding clamping plate (3), a basic body (4) and a thermoplastic rubber sleeve (5), wherein the handle is connected with the screw rod; the screw rod is arranged in the basic body; a rail groove (6) parallel to the screw rod is arranged in the lateral surface of the basic body; a screw rod nut (7) in the basic body is connected with the sliding clamping plate; the sliding clamping plate is perpendicular to the screw rod and extends out of the rail groove; a substrate (8) is arranged at the bottom of the basic body and is perpendicular to the basic body; a plane of the substrate is parallel to a clamping surface of the sliding clamping plate; and the thermoplastic rubber sleeve is arranged on the sliding clamping plate. According to the cake type coil fixture disclosed by the invention, the protection for an insulating layer of a lead is facilitated; the coilis enabled to become attractive; the phenomenon that a rivet or a screw is easy to fall off during use is completely eliminated; and quality problems and potential safety hazards generated by fallingof scrap iron are eliminated. The cake type coil fixture disclosed by the invention has the advantages of long service life, low manufacturing cost and stable and reliable clamping force.

Description

technical field [0001] The invention relates to a pie-shaped coil fixture, in particular to a transformer coil winding process equipment, and belongs to the technical field of transformer coil winding manufacturing. Background technique [0002] At present, the structure of the common cake-type coil fixture is three layers, and the middle layer is a metal rivet riveted phenolic plate structure. The metal rivet is easy to fall off and be lost. If the rivet falls into the coil and is not found, it will cause the coil between the cake and the turn. short circuit. The middle layer is always in a shaking state, and the parallelism of the two clamping surfaces cannot be guaranteed when the clamping coil is stressed, causing the screw to rotate in a skewed state, and the thread wears too fast, which directly affects the service life of the fixture. At the same time, the thread grinding Most of the fallen iron filings fall on the coil, which affects the product quality and has pote...

AI Technical Summary

Problems solved by technology

[0002] At present, the structure of the common cake-type coil fixture is three layers, and the middle layer is a metal rivet riveted phenolic plate structure. The metal rivets are easy to fall off and be lost. If the rivet falls into the coil and is not found, it will cause the coil between cakes and turns. short circuit

The middle layer is always in a shaking state, and the parallelism of the two clamping surfaces cannot be guaranteed when the clamping coil is stressed, causing the screw to rotate in a skewed state, and the thread wears too fast, which directly affects the service life of the fixture. At the same time, the thread grinding Most of the dropped iron filings fall on the coil, which affects the product quality and poses a safety hazard

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