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CNC lathe selection and installation introduction

Article source: Clicks: Pubdate:2017-11-05

      Introduction and selection of CNC lathes

      CNC lathe, turning center, is a kind of high precision and high efficiency automatic machine tool. It has a wide range of processing performance, Machinable linear cylinder, slash cylinder, arc and a variety of threads. With linear interpolation, circular interpolation various compensation functions, and complex parts in mass production has played a good economic results. Reasonable selection of CNC lathes, should follow the following principles:

1. Selection principle

(1) pre-preparation
Determine the typical parts of the process requirements, the processing of the workpiece batch, the proposed CNC lathe should have the function is a good preparation, reasonable selection of CNC lathes prerequisites

  (2) meet the typical parts of the process requirements

Typical parts of the process requirements are mainly parts of the structure size, processing range and accuracy requirements. According to the accuracy requirements, that is, the workpiece dimensional accuracy, positioning accuracy and surface roughness to choose CNC lathe control accuracy.

  (3) Choose from reliability

Reliability is to improve product quality and production efficiency guarantee. CNC machine tool reliability refers to the machine under the conditions specified in the implementation of its functions, long-term stable operation without failure. That is, mean time to failure-free, even if a failure, a short period of time to resume, re-put into use. Select a reasonable structure, well-made, and has been mass-produced machine tools. In general, the more users, the higher the reliability of CNC system.

(4) machine tool accessories and purchase

Machine tool accessories, spare parts and their supply capacity, tools, has been put into operation CNC lathe, turning center is very important. Select the machine tool, need to carefully consider the supporting tool and accessories.

(5) focus on the identity of the control system

Manufacturers generally choose the same manufacturer's products, at least the same manufacturer's control system should be purchased, which brings great convenience to the maintenance work. Teaching units, due to the need for students knowledgeable, use different systems, equipped with a variety of simulation software is a wise choice.

(6) According to the cost performance to choose

        do the function, accuracy is not idle, do not waste, do not choose and have their own needs irrelevant features.

(7) Machine Protection

When needed, the machine can be equipped with fully enclosed or semi-closed guard, automatic chip removal device.

In the choice of CNC lathes, turning centers, should take into account the above principles.

2. Installation method

(1) Lifting and shipping

The lifting of the machine tool and its place of use, should use the special lifting tools provided by the manufacturer, not allowed to use other methods. Do not need special lifting tools, rope should be used in accordance with the provisions of the instructions lifting and positioning of the site.

(2) Foundation and location

Machine should be installed on a solid foundation, the location should be far away from the vibration source; avoid sunlight and heat radiation; placed in a dry place, to avoid the impact of moisture and airflow. If vibration source is near the machine tool, anti-vibration groove must be set around the foundation.

(3) machine tool installation

Placed on the basis of the machine, should be leveled in a free state, and then the anchor bolts evenly locked. For ordinary machine tools, the level readings do not exceed 0.04 / 1000mm, for high-precision machine tools, the level of more than 0.02 / 1000mm. In the measurement of installation accuracy, should be carried out at a constant temperature, measurement tools need to be used after a fixed temperature time. When installing the machine, you should try its best to avoid the forced deformation of the machine. Some parts of the machine tool should not be disassembled when the machine is installed. The disassembly of the parts may lead to important new distribution of stress in the machine and affect the machine accuracy.

(4) preparation before commissioning

Machine geometry precision test after passing the need to clean up the machine. With a cotton cloth or silk cloth soaked in detergent, shall not use cotton yarn or gauze. Rinse off the machine tool to protect the rail surface and the processing of the surface and coated with anti-rust oil or anti-rust paint. Clean the dust on the outer surface of the machine. In the sliding surface and the work surface coated with machine tools to make oil.

Carefully check whether all parts of the machine plus oil on request, whether to add enough cooling tank coolant. Machine hydraulic station, automatic lubrication device oil is to the oil level device specified parts.

        Check the electrical control box of the switches and components are normal, the interposer integrated circuit board is in place.

Power start centralized lubrication equipment Xuan, so that the lubrication parts and lubricants Road is full of lubricating oil. Do all the parts of the machine before the action of all preparations.