NEWS CENTER
News Center

Hot line

Phone: 17701565566

E-mail: lasoco@163.com

Fax: 86-512-58608699

/
/
Experts interpret the important technical features of the pipe bending machine

Experts interpret the important technical features of the pipe bending machine

  • Categories:company news
  • Author:
  • Origin:
  • Time of issue:1555897980000
  • Views:9

(Summary description)Experts interpret the important technical features of the pipe bending machine

Experts interpret the important technical features of the pipe bending machine

(Summary description)Experts interpret the important technical features of the pipe bending machine

  • Categories:company news
  • Author:
  • Origin:
  • Time of issue:2019-04-22 09:53
  • Views:9

  The pipe bending machine is mainly used for electric power construction, public railway construction, boiler laying and repairing of boilers, bridges, ships, furniture, decoration, etc. It has many advantages such as multi-function, reasonable structure and simple operation. The basic working principle of the pipe bending machine is to plastically deform the steel pipe by applying a bending moment through a reasonable fulcrum and a force point, thereby achieving the purpose of cold bending of the steel pipe. The lower die is located at the front of the pipe bending machine, and is suspended by a hydraulic cylinder. The rack is in a floating state, and the steel pipe is introduced into the lower mold from the rear of the bending machine through the clamp and the upper mold by the spreader, and the inner tube is placed in the steel pipe and placed in the center position of the upper mold to support the inner wall of the steel pipe, thereby making the inner wall of the steel pipe The steel pipe avoids abnormal deformation during bending. The following Taiwan and experts will give several technical features to the enterprises that use the bending machine:

  1. Tube type regularization

  Avoid excessive arcs, arbitrary curves, compound bends, and greater than 180 when designing and piping. The arc. Excessive arc not only makes the tooling heavy, but also limited by the size of the machine of the pipe bending machine; the arbitrary curve and compound bending design is unreasonable, which greatly hinders the mechanization and automatic production, making it difficult for the operator to get rid of the heavy physical labor; More than 180. The arc makes the bender unable to unload the mold.

  2. Bending radius standardization

  The bending radius should be as far as possible to achieve "one tube and one mold" and "multiple tubes and one mold". For a pipe, no matter how many bends, the bending angle can only have one bend radius, because the bender does not replace the module during the bending process, which is "one tube and one mold". The "multi-tube and one-module" means that the same diameter pipe should use the same bending radius as much as possible, that is, the same set of modules can be used to bend different shapes of the pipe shape, which is beneficial to reduce the number of modules.

  3. Appropriate bending radius value

  The size of the bend radius of the catheter determines the amount of resistance the catheter is subjected to during bending. Generally speaking, the large diameter of the pipe diameter is small, and the wrinkles and slippage are likely to occur during bending. The bending quality is difficult to ensure, so the R value of the pipe bending die is generally selected to be 23 times the diameter of the pipe.

  4. Moderate bending speed

  The main influence of the bending forming speed on the forming quality is that the speed is too fast, the flatness of the curved part of the duct is easy to be formed, the roundness is not required, and the duct is pulled and broken; the speed is too slow, and the wrinkling of the duct is easy to occur. The compacting block slips, and the large diameter pipe tends to form a depression of the curved portion of the conduit. For a large number of tests on these two CNC pipe bending machines, it is advisable to determine the bending speed of the pipe to be 20% - 40% of the maximum bending speed of the machine.

  5. Suitable mandrel and its position

  The mandrel mainly plays the role of supporting the inner wall of the bending radius of the conduit during the bending process to prevent deformation thereof. At present, the domestically produced pipe is bent on the machine tool. If the mandrel is not used, the quality is difficult to guarantee. There are many types of mandrel rods, such as column core rods, universal single, double, triple, and four-ball head core rods, oriented single and multi-ball head core rods. In addition, the position of the mandrel also has a certain influence on the bending of the pipe: in theory, its tangent should be flush with the tangent of the pipe mould, but after a large number of tests, it is better to advance 1~2mm, at this time the quality of the pipe More ideal. Of course, the amount of advance is too large, which causes a phenomenon of so-called "goose head" on the outer wall of the curved portion.

  Zhangjiagang Hehe Machinery Co., Ltd. is a Taiwanese investment company. Specializing in the development and manufacture of metal circular sawing machines, CNC pipe bending machines, pipe end forming machines and other mechanical equipment. The company's demand for furniture, sports equipment, car driving, auto parts, air conditioning pipe industry, decorative materials and other industries, adhering to Taiwan's advanced technology, research and development of metal circular sawing machine, CNC pipe bending machine, pipe end forming machine and other tube processing Equipment. The company can also design and manufacture special-sized models and various non-standard mechanical equipment according to customers' needs.

code

Zhangjiagang Hehe Machinery Co., Ltd.   |  Copyright - 2019 All Rights Reserved.   Powered by300.cn Kunshan    苏ICP备18038601号