The use accuracy of ink printing slotting machineThe main motion of the CNC pipe bender is expressed in a way that ADAPTS to the incremental tubular data obtained by vector theory. The CNC pipe bender needs three main motions, which can be expressed as follows: (1) The straight line Distance Between the two bending angles (DBB). This distance refers to the distance between the end point of the bending member and the straight pipe segment and the bending arc or the tangent point of the straight pipe segment and the two arcs on both sides. It represents the straight feed distance of the tail frame of the bending machine along the Y direction. Plane of Bend (POB), for spatial multi-bend pipe fittings, ink printing slotting machine indicates that when two bends are not on the same Plane, the Angle between the Plane where the Bend is and the Plane where the Bend is, which is also the Angle of rotation required by the collet of the pipe bending machine for clamping the blank. The collet can be rotated forward or backward about the feed axis Y. Degree of Bend (DOB). This Angle refers to the included Angle between two adjacent straight pipe segments, that is, the Angle that the clamping block fixed on the elbow of the pipe bender used to clamp the pipe blank in the beginning bend segment needs to be rotated.
Bending radius and bending Angle are important shape parameters and deformation conditions of plane bending pipe, as well as important process parameters of CNC bending pipe. However, for spatial multi-bend pipe fittings, shape and size parameters also include the straight pipe segment size between any two corners, the straight pipe segment size at the two ends of the bending section, and the included Angle between one bend and the plane where the other bend is located. Only after all these shape parameters are determined by ink printing slotting machine can a complete spatial geometric shape of pipe bending member be established. These data are the shape parameters of pipe bending determined before nc programming. Numerical control bending can be carried out by using the coordinate point program (X,y,Z) and the data program of incremental tubular data YBC, but because the position and shape of non-planar bending member in space are described only by the coordinates of several points, it is difficult to establish the three-dimensional sense of its shape. Therefore, it is necessary to use the computer to carry out vector operation on the sitting punctuation data, and then convert it into incremental tubular data used by CNC pipe bender. This paper briefly introduces the concept of incremental tubular data and the shape parameters to be determined. 3. The technical points of NUMERICAL control bend pipe for plastic bending processing opened up a new development direction of digital manufacturing technology in many machinery manufacturing industry have its wide application, the benefit of significant is the manufacturing industry.
Because the industry of pipe bend is difficult and of high accuracy requirement, and CNC pipe bending technique can change the aviation engine exhaust pipe model, replace artificial sampling, try bending, correction and YanGuan assembly and other traditional cumbersome process, not only shorten the engine exhaust pipe development cycle, and improve the quality of the pipe bend, reduces the development costs, However, due to the current CNC tube bending technology is in the stage of gradual improvement and development, it is inevitable that there are some technical aspects have not been successfully solved and the shortcomings appear. In order to better adapt to the requirements of the current CNC bending technology, the layout design of the bending components and pipelines should consider the following, and strive to simplify the shape of the tube. Considering the coordination between the bending mold manufacturing and the CNC bending machine, the shape of the tube should avoid arbitrary curves as far as possible: Current vector increment in the bend tube data programming, and pipe bending machine control precision, it is not suitable for bending with composite curved pipe fittings: bending tube of big circular arc, the need to manufacture large bending modulus, as well as expanding pipe bender mesa size: CNC pipe bending is not suitable for bending is greater than 180 ° corner, because this will make pipe bender can’t die.
Post time: Oct-18-2021