What Is an Indexing Head?
The indexing head is a machine tool attachment installed on a milling machine to divide the workpiece into any equal parts. The indexing ring and vernier, positioning pins and indexing disks, and exchange gears are used to clamp the workpiece to be clamped between the center or the chuck Divided into any angle, the circle can be divided into any equal parts, and the auxiliary machine tool uses a variety of different shapes of tools to perform various grooves, spur gears, helical spur gears, Archimedes spiral cams, etc.
- use
- According to its transmission and indexing form, it can be divided into worm pair indexing head, dial indexing head, hole disk indexing head, slot disk indexing head, end tooth disk indexing head and other indexing heads (including inductance indexing) Head and grating indexing head). According to its function, it can be divided into universal indexing head, semi-universal indexing head, and equal division indexing head. According to its structure, there are vertical and horizontal indexing heads, tiltable indexing heads, and cantilever indexing heads. The indexing head is a universal machine tool accessory. Its structure is mainly composed of a clamping part, an indexing positioning part and a transmission part. [1]
- 1) Index the workpiece around its axis (equal or unequal). Such as hexagonal, gear, spline and so on. 2) Align the axis of the workpiece with the required angle (horizontal, vertical or inclined) relative to the table of the milling machine. Therefore, bevels with different angles can be processed. 3) When milling spiral grooves or cams, the workpiece can be continuously rotated in cooperation with the movement of the table. [1]
- For example, the division z = 35. The number of revolutions of the handle for each indexing is: n = 40 / z = 40/35 = 1 and 1/7, that is, for each indexing, the handle needs to be rotated 1 and 1/7. This 1/7 rotation is controlled by the indexing disk. Generally, the indexing head is equipped with two indexing disks. There are many circle holes on both sides of the indexing plate, and the number of holes in each circle is different, but the hole spacing on the same circle is equal. [1]
- Technical characteristics : high accuracy, high torque, small size, suitable for various milling and drilling operations, can be independently indexed, and can also be connected to CNC machines for 4- axis linkage
- Indexing head maximum speed: 40Rpm / min
- Maximum workpiece diameter: 120mm
- Maximum output torque: 240N.m
- Swing accuracy: 1
- Center height: 160 mm
- Reduction ratio: 1: 100
- Tailstock extension stroke: 50mm
- Drive motor: 750 servo and 86 stepper motor
- Dimensions: 280X230X260mm [1]
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