Steel Black Leather Chicago Screw

fay@pride-cnc.com
Block D, Dianlian Science Park, Matian St., Guangming District, Shenzhen 518106, China

+8613477665385

 13477665385

Ha Ting CNC bed spindle design structure features

The owner's shaft is divided into mechanical spindle and electric spindle. Among them, the mechanical spindle is a patented product of Harting, and its design structure is very distinctive. There are five main structures of the mechanical spindle used in the Haring CNC car, namely, the spring chuck (the work piece is fully inclusive, the shortest clamp length), the fast-changing chuck (mass production, between the spring chucks, all filled with rubber mats, so that Impurities do not enter the adapter and are suitable for a variety of shape spring chuck structures, step chucks (suitable for large diameter part clips), internal rise structures (mainly used for thin-walled parts, or parts with inner holes as positioning references), and three-paw chucks. For quEST series CNC lathes, more use of built-in spring chucks, more use of tallent series of three-claw chucks. With a maximum speed of 6000r/min, The built-in spring chuck with an inner cone structure, as shown in Figure 1, has the following significant advantages over the common general-purpose mechanical spindle structure:

(1) The structure is simple and easy to change quickly

    From the comparison between the two figures, it can be seen that the main shaft of the harness lathe can be installed directly without the need for a transition of the frenchland due to the internal conical structure. The chuck change chuck can be implemented in minutes for a quick work part conversion.

(2) Good rigidity

    The spindle structure design makes the work piece clamp very close to the spindle bearing, because the clamping length is shortened, the work piece is rigid, which improves the precision of part processing and surface roughness.

(3) The support point is reasonably designed and the heat dissipation number

    The Harting machine changes the support point of the spindle and places the support point on the center line of the spindle, so that the spindle is balanced in the upper and lower heat, so that the heat spreads as little as possible to the bed body, so as to achieve the most effective spindle heat release.

(4) Maintenance-free is good

    Harting spindle for maintenance-free spindle, it is a whole structure, using solid lubrication form, front three-row roller bearings, rear two-row ball bearings, further increase the rigidity of the spindle, Harting spindle with blowing device, each clip has a gas blow-hole action, to prevent chips or impurities into the spindle.

(5) The accuracy is high

    The spindle radial run-out accuracy and end-face run-out accuracy error are less than 1 m, the full-stroke positioning accuracy is ±0.005mm, the full-stroke repeated positioning accuracy is ±0.0025mm, the round accuracy accuracy error is less than 0.75 m, and the surface roughness can reach 0.2 sm. For ultra-high precision CNC crib, the radial run-out accuracy of the spindle and the end-face run-out accuracy error can reach up to 0.4 m

    It is precisely because of the high precision with high rigidity characteristics of the Khating spindle structure, in 2005, at the Beijing International Machine Tool Show, the use of the Harting CNC crib cutting a blank diameter of 25 mm aluminum alloy rod material, in the case of machine tool speed of 5000 to 6000r/min, the use of a once The cutter will be the car for 0.3mm, length of 70 to 80 mm work piece, in the case of high-speed rotation of the spindle, one-way cut depth of 12.35 mm, and the work part in the processing process did not appear bending, breaking the situation, fully illustrates the high precision of the shaft of the Harding machine tool with high rigidity characteristics.

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