Horizontal boring machine In the single-piece small batch production of shaft and box parts, often encounter the same shaft hole system span a large distance between the parts. In the horizontal boring machine using the table rotation 180 ° turn head boring span of a large hole, because of horizontal boring machine size of too large, coupled with the table angle of error, so the coaxial two end hole coaxiality error is too large, can not meet the design requirements of the drawings, thus appearing scrap, bringing losses to production. At the same time, the production practice of the commonly used head boring method also has some shortcomings, for these problems, this paper puts forward some new solutions.
Long, deep hole boring is one of the key technologies for horizontal boring machine processing important and difficult to process. Over the years, this unit in the long, deep hole boring the traditional approach is as follows.
(1) with a boring die boring long, deep holes: this method of boring quality is more reliable, it is mainly boring die has been set to the diameter of the hole, the operation only need to correct the boring die can be. However, this method is only suitable for mass production, and the production cost of the boring die is high.
(2) Boring long and deep holes with guide bush: This method can also effectively ensure the coaxiality of long and deep holes and other quality requirements, but the guide bush is more difficult to manufacture and install. Not suitable for single piece long, deep hole processing.
(3) The use of horizontal boring after the column support long boring bar: long boring bar is one of the accessories of horizontal boring, can effectively solve the problem of long, deep hole boring, boring quality is reliable, but sometimes due to the large difference in the size of the step hole aperture, the diameter of the boring bar does not fit, coupled with the difficulty of wearing a long boring bar, this method is also used less.
(4) find the workpiece boring one end, the table rotary 180 ° boring the other end of the hole: transfer boring is another form of long, deep hole boring, this method is relatively simple, without the addition of fixtures, especially suitable for a single long, deep hole workpiece processing. But this operation method how to ensure the coaxial accuracy of long, deep hole boring is the main operation technology, so ensure that the coaxial accuracy of the head boring the subject is worth exploring.
Post time: Apr-11-2023