First, the spiral winding process
1.1 spiral winding specifications
Before we introduce the principle of spiral coil high-precision winding machine, we first explain the winding specifications of the spiral wire, because the winding specification directly determines the winding method of the winding machine.
The winding method of the high-precision winding machine is a single-layer one-way continuous spiral, and the winding mode is mainly divided into four types, namely, equal pitch winding, progressive pitch winding, jump pitch winding and mixed pitch. Winding.
Equal pitch: that is, the pitch of each turn is equal.
Gradient pitch: There are two main types, one is the equidistant pitch, and the other is the equal pitch.
Jump pitch: first wrap around a pitch and then change to another pitch.
Mixed pitch: firstly wound with a pitch and then wound with a gradient pitch; or a group fire of the above mode
The wound material is mostly an annealed tungsten or tantalum tungsten alloy. The figure below shows a schematic diagram of a spiral made. The shape and structure of the spiral are roughly explained.
Wrapped spiral diagram
1.2 winding process
The high-precision winding machine is to produce a single-spiral coil of the corresponding pitch size according to the customer's process requirements. Since the bandwidth B error of the high-purity tungsten tape or the aluminum tape itself is on the order of micrometers, the pitch A error of the winding must also be within a micron-order error band to meet the product requirements.
Therefore, winding the spiral coil will put more stringent requirements on the structure of the winding machine, mainly in the following aspects. One requires a reasonable winding machine structure, and the other is a high-precision equipment corresponding winding machine. Tolerance coordination is better, the third is to select the corresponding structural materials, and some structures need special processing to meet the requirements of use. In this way, it can ensure that the vibration caused by the mechanical transmission of the control system during operation can be small, that is, smooth and fast.
Winding machine structure diagram
Before introducing the winding machine, the winding process of the winding structure of the winding machine is roughly introduced. The structure of the winding machine is a kind of clamping between two ends, and the horizontal movement of the wire driving mechanism through the screw drive Line machine mechanism. When winding, it is required to have a good clamping on the core rod, and the relative movement of the core rod and the clamping mechanism is not allowed. Then, the strip is pre-wound on the core rod for several times and fixed, and the two fixed shaft motors are fixed. Rapid rotation at the same speed and in the opposite direction drives the clamped core rod to rotate rapidly, and the wire arranging mechanism moves the tungsten belt or the aluminum belt passively on the core rod at a corresponding speed in the horizontal direction, thereby completing the single spiral coil. Winding.
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The fixing seat is generally fixed to the base of the winding machine by the positioning pin, and the tailstock is generally a horizontally movable mechanism. The mounting on the parallel rail helps to clamp the core rods of different lengths, and the fixing seat and the tailstock are respectively installed. There is a set of clamping mechanism to achieve the clamping and locking of the core rod. And under the drive of the motor, synchronous start and stop, constant speed rotary motion, the difference is that the two directions of rotation are opposite.