In today's life, it is inseparable from the existence of pipe benders, which are suitable for all walks of life. For example: transportation industry-exhaust pipes, bumpers, seats, steering gears, bicycle frames, handlebars, etc. Furniture industry categories include: office desks and chairs, indoor and outdoor tables and chairs, shelves, beds, etc. The leisure fitness industry includes: fitness equipment, strollers, strollers, amusement facilities, etc. Today we will talk about the programming technology of pipe bender equipment:

Because the position of the tube shape in space is more complicated, it is difficult for people to deduce the true shape of the tube shape with the coordinates of several points. Moreover, the data used by the pipe bender is not coordinate point data, but "incremental pipe bending data". Therefore, the coordinate point data stored in the computer memory must also be calculated through a series of vector operations to calculate the "incremental tube shape data" required by the bend.

The feeding distance between two pipes is the distance from the end point to the tangent point of a straight line and an arc or the distance between a straight line and the tangent point of two arcs. For the pipe bender, it is the straight forward distance before each bend. Space corner. It is the angle between the two bends that are not on the same plane, and the plane where the second bend is located and the plane where the first bend is located. For the pipe bending machine, it is the rotation angle of the chuck holding the pipe. The chuck can be used for forward rotation or reverse rotation. Bend angle. It is the angle between the centerline of the second straight line segment and the centerline of the first straight line segment. For a pipe bender, it is the angle of the bending arm.

Each bend of the tube has these three data. The data of a certain bend is generated based on the data of the previous bend, so it is called "incremental tube data". After this data is generated, it needs to be corrected by the rebound data before it becomes a pipe bending program, which is used to control the vector and perform pipe bending.

Vector bending technology: Use a measuring machine to measure the shape of the tube, and after obtaining the necessary data, the tube must be bent out. Therefore, the tube bending machine is also matched with the tube shape measuring machine, which is used to bend the tube according to the measured data. So the whole process of vector bending technology is:

Use the tube shape measuring machine to measure (or input according to the drawing) tube shape data according to the tube standard sample, edit and modify the tube shape data; measure the rebound data, compile the tube bending program; use the tube bender to bend the tube; use the shape measurement The machine performs automatic inspection, compares with the tube shape data of the standard sample, calculates the difference, and uses the "difference" to automatically correct the pipe bending program; then use the pipe bender to bend the qualified pipe.

This process is all controlled by computer. That is to use computer numerical control (CNC). Of course, the first step in this process is to measure the tube shape data. According to the design drawings, the data of the intersections and end points of each straight section of the tube can be directly input into the computer to determine the shape of the tube.

Vector bending technology is a breakthrough in bending technology.

It is of great significance to use vector bending technology to manufacture pipes. Quickly measure tube shape data and program according to tube shape standard samples.

As mentioned earlier, the shape of the ducts of aircraft and their engines is very complicated, and it is difficult or even impossible to express it in design drawings. Therefore, in the processing of catheters, many catheters are not produced in accordance with the drawings, but are manufactured in accordance with the standard samples of the catheter (or tube), and the inspection is performed on the surface inspection fixture. If you simply use CNC pipe bending, considering that it is difficult to measure pipe shape data by usual methods, the data will not be accurate even if it is measured. In addition, there are many factors that affect springback, such as pipe material, diameter, wall thickness, and bending. There is no certain rule for the radius and the size of the corners, etc. A series of process problems make it quite difficult to compile a pipe bending program. This can only be edited by the method of "test bends one by one-initial data-test bend the entire tube shape-correct data-finalize the data".

However, with the use of a tube shape measuring machine, this problem is easily solved. It obtains the tube shape data by measuring the tube shape standard sample, and after the rebound correction, it automatically compiles the tube bending program required by the tube bending machine. This is a "profiling" method, which is very useful in actual production. Especially for tubes with complex shapes, a large number of complicated calculations are done by computers, which solves the general problem of measuring tube data, so that computer programming of tube shapes is possible, and greatly Reduce the computational workload of programmers.