Five advantages and disadvantages of CNC lathe machining

1. Higher procurement costs
Of course, cnc machine shop indicate that they have certain disadvantages in terms of procurement costs and single-piece production costs. The price of CNC lathes of the same specifications is more than 1.5 times that of ordinary lathes.

2. Single piece machining cost is currently high
It is an indisputable fact that the current CNC lathe processing has a higher production cost than ordinary lathe single-piece processing. But if it is improved, CNC lathe processing will also be better than ordinary lathes in the cost and efficiency of single-piece production.

3. Precision advantage
Ordinary lathe processing is driven by gears and ordinary screw nuts. Due to the gaps between the motion pairs and the inaccurate manual operation, the repeat accuracy is low. The ordinary lathe needs to measure manually after stopping when measuring, and the measurement error is large.

4. Pass rate advantage
Because ordinary lathe processing is manual operation, the human impact is very large. Once the operator's physical condition is poor or the mind is not concentrated, the product reject rate will rise sharply. CNC lathe machining basically relies on equipment to ensure machining accuracy, and the operator basically only plays the role of loading and unloading workpieces and switches, with little human influence, so the product qualification rate is relatively high.

5. Mass production efficiency advantage
The processing of a common lathe requires a skilled operator. Due to the use of a manual three-jaw chuck and manual measurement after stopping, the processing efficiency is low. Under the premise of mass production, using hydraulic chucks or collets to clamp workpieces, a worker who does not know any technology can operate at least two CNC lathes at the same time. Production efficiency is more than 4 times that of ordinary lathes.

Lathe cnc machining relies on a drive motor to drive the ball screw drive. After the ball screw is pre-stretched and installed, there is an interference amount, and there is no gap in the transmission. The accuracy is mainly guaranteed by the machine tool and the program. During the machining process, the position can be measured by the encoder, which can compensate the tool wear and other errors. Therefore, the processing quality is good and the accuracy is stable. Have you learned it?

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