Cutter-axis vector smoothing method based on AB-type five-axis numerical control machine tool ball-end cutter machining

A tool axis vector and CNC machine tool technology, applied in the direction of digital control, program control, computer control, etc., can solve the problem of sudden change and large fluctuation of the tool axis vector on the curved surface, achieve stable and smooth motion, avoid sudden change, reduce angular velocity and angle The effect of acceleration
CN107065769AActive Publication Date: 2017-08-18SHANDONG UNIV OF TECH
9 Cites 7 Cited by

Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
SHANDONG UNIV OF TECH
Publication Date
2017-08-18

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a cutter-axis vector smoothing method based on AB-type five-axis numerical control machine tool ball-end cutter machining. The method comprises the following steps: establishing a relation equation between ball-end cutter cutter-axis vectors and cutter-location design variables; establishing a motion transformation equation between the ball-end cutter cutter-axis vectors and five-axis numerical control machine tool rotation shafts A and B; establishing a relation equation between the ball-end cutter cutter-location design variables and the five-axis numerical control machine tool rotation shafts A and B; determining a design variable, an objective function and constraint conditions of ball-end cutter cutter-axis vector smoothing, and establishing a cutter-axis vector smoothing mathematical model based on the AB-type five-axis numerical control machine tool ball-end cutter machining; and determining a solving method of the cutter-axis vector smoothing mathematical model. The method can prevent dramatic changes of the machine tool rotation shafts to enable the machine tool rotation shafts to be able to operate more smoothly and stably, and angular velocity and angular acceleration of the machine tool rotation shafts are greatly reduced, so that machining quality and machining efficiency of a curved surface are improved; and the method has a higher practical application value.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a method for smoothing the vector of a tool axis of a five-axis numerically controlled machine tool, in particular to a method for smoothing the vector of a tool axis based on an AB-type five-axis numerically controlled machine tool ball head cutter, and belongs to the technical field of five-axis numerically controlled machining. Background technique

[0002] When using a ball-end cutter for five-axis machining of complex surfaces, due to the poor geometric properties of the surface, such as the surface's normal vector, main direction, curvature, etc., it is easy to cause sudden changes and large fluctuations in the generated ball-end cutter tool axis vector. Even if the simplest tool positioning method (such as the Sturz method) is used to process the above-mentioned curved surface area five-axis, it will cause a drastic change in the tool axis vector, which will affect the stability of the five-axis machine tool motion, the s...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More