In the process of deep hole processing, problems such as dimension accuracy, surface quality and tool life often arise. How to reduce or even avoid these problems is an urgent problem to be solved at present.
Deep-hole processing process should pay attention to the problems - deep-hole processing manufacturers to talk to you:
1. Choosing the right tool
Tool life is closely related to cutting parameters. When determining cutting parameters, the reasonable tool life should be chosen first, and the reasonable tool life should be determined according to the optimized goal. Generally, there are two kinds of tool life: the highest productivity tool life and the lowest cost tool life. The former is determined according to the goal of minimum working hours per unit, and the latter is determined according to the goal of lowest process cost. Tool materials suitable for high speed cutting (such as high-speed steel, ultra-fine cemented carbide) and indexable blades are often used in machine tools.
What should we pay attention to in the processing of deep hole machine tools?
2. Choosing Reasonable Cutting Parameters
The economical and effective processing method is to select reasonable cutting conditions. Operators should select the cutting speed according to the material, hardness, cutting state, material type, feed, cutting depth and other aspects of deep hole processing. The most suitable processing conditions are selected on the basis of these factors. Regular and stable wear and tear to achieve life is the ideal condition - deep hole processing which is good
3. Choosing the appropriate fixture
(1) To ensure that the coordinate direction of the fixture is relatively fixed with the coordinate direction of the machine tool.
(2) To coordinate the dimension relationship between parts and machine tool coordinate system in order to reduce positioning error.
4. Determining the Processing Route of Deep Holes
Deep hole processing route refers to the movement track and direction of the tool relative to the parts in the process of deep hole processing of machine tools.
(1) The requirements of machining accuracy and surface roughness should be guaranteed;
(2) The processing route should be shortened as far as possible to reduce the idle travel time of the tool.
5. The Relation between Processing Route and Processing Allowance
At present, under the condition that NC lathe has not been widely used, it is generally necessary to arrange excessive allowance on the blank, especially the allowance containing forging and casting hard skin, to be processed on the ordinary lathe. If the NC lathe must be used for processing, the flexible arrangement of the program should be paid attention to.
6. Key Points of Fixture Installation
At present, the connection between hydraulic chuck and hydraulic clamping cylinder is realized by tie rod. The main points of hydraulic chuck clamping are as follows: first, remove the nuts on the hydraulic cylinder with a mover, remove the pull pipe, and pull it out from the back end of the spindle, then remove the fixed screw of the chuck with a mover, and then remove the chuck.
