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Perfect control of CNC machine tools

there is no doubt that CNC technology has greatly improved the productivity of today's machine tools. In other words, those interfaces, such as the control of Haas, make them easier to operate than before. However, some things have not changed. Although CNC has put unprecedented ability and accuracy in front of you, the standard to judge whether a mechanic is qualified is still "whether the work is completed". In Haas, the "computer" part of CNC is the essence. In that gray box with the same specification, there is practical information and carefully configured precious wealth, which can help you complete your work

in the last issue, we introduced Haas control in general. However, as we suggested, what you see is only the tip of the iceberg. In this issue, we will dig deeper to see more features. Once again, if you are new to Haas machine tool, this article is tailor-made for you. Even if you are an old hand, you may still find valuable information you haven't noticed before

now, we want you to focus on the help/calc button. You will find it in the lower right corner of the display key group in the middle of the keyboard. Press this button once, and you will see a 27 page mini manual, which briefly lists almost all the functions on your machine tool

the title of the first page is help function, which shows the complete directory of all topics and a brief description of how to find them. If you view each topic in order, just use the cursor keys or the handwheel to turn down the page. Alternatively, use the alphabetic keyboard to enter the single letter identification of the topic and jump directly to the corresponding page. The titles of most topics need not be explained too much. If you need them later or just when you need them, you just need to browse quickly to know what information they contain

in the latest Haas controller (since June 2005), the help item has become easier to use. The same help initial page gives an overview of the information, but you can still find topics or words in the help manual. This is the same as the help item on the desktop computer

press the help/calc button for the second time to directly enter the calculator page. Here, you can see five interesting screens, which make the programming of machine tool linear motion, circular motion, speed and feed easier. Use the page up and page down keys in the cursor group to enter the calculator

the experimental output function of each calculator page can be set arbitrarily: there is a simple mathematical calculator in the upper left corner of the maximum force value and elongation. 2. The elimination of repeated or forwarded pages. The value is entered through the numeric keypad and the write/enter key, and then selected by using the left and right cursor keys, but the annual crude steel output has increased by 1.2%. The desired calculation function (load, +, -, *,/) can be highlighted

to perform a simple calculation, first highlight the load function, then use the keyboard to enter the value, and then press the write/enter key. After that, highlight the desired mathematical operation (+, -, *,/), and then enter the second value through the keyboard. Press the write/enter key to perform this operation, and the calculation result will be displayed in the calculator box. To perform multi-step operations in sequence, simply repeat the above process

in the basic calculator, you can also enter a long mathematical equation in the input line, such as 0.25*8/0.25+. When there are multiple steps in a problem, first highlight the load function, and then enter the entire equation (0.25 * 8/0.25+), in which the numeric value and operator are entered using the numeric keypad. After entering, press write/enter to execute this calculation (=10). The calculation order of the equation is to multiply and divide first, and then do the rest of the operations

the built-in calculator has the following advantages: it allows you to copy or paste the calculation results directly into the program you are in, or you can copy or paste them into the special calculator we will discuss later. You don't need to transfer the data manually, which avoids the risk of errors caused by re entering the data. We will introduce this in detail later

in addition to the basic calculator in the upper left corner, this part also has four special calculators to help solve the calculation of trigonometry, circle, tangent, speed and feed problems in trigonometry

the first page is the triangle calculator. Input the corner value of your triangle problem. When the input data is enough, the computer will calculate this triangle and display other values. Use the up and down arrow keys to choose where to enter your value. Then use the numeric keypad and the write/enter key to enter the value. You can overwrite the highlighted text because it is a calculated value. To enter a new value to overwrite the calculated value, you must clear another entered value. You can do this by pressing space and then enter

if you encounter a value that has been calculated by the basic calculator, you can use the F3 key to enter the calculation result into any highlighted line of the special calculator. You can also use this technique in reverse. Just press F4 to copy any highlighted value in the special calculator to the window of the basic calculator. No matter which operator (load, +, -, *,/) is highlighted, it will be executed at the same time, and then you can use the basic calculator to add, subtract, multiply and divide this value at will

want to try this copy paste trick? First switch to edit mode (press the edit key) and check your ongoing program. Press F3, and the value in the calculator will be displayed on the data input line at the bottom left of the edit page. The impact experiment is ready to be input into your program

the next page will bring you a complete circle. Press the page down button, and the triangle calculator will be converted to the circumference calculator. The work of this page is generally the same as that of the previous page, or even better. In this process, the circumference calculator will generate a demonstration G code. You will get a complete and incremental circular motion code in the form of commands. Just highlight the line you want, switch to the edit page, and then press F3 to copy the selected line from the circumference calculator to the horizontal line of data input, and then insert it into your program

press the page down button again, and you will find a third special calculator, commonly known as the "milling and tapping" (turning and tapping on the lathe) calculator page. This calculator is probably the most useful

in milling machine control, milling is displayed at the top of the screen, and in lathe control, turning is displayed

input the recommended surface of the material you want to cut - speed and feed per tooth, as well as the diameter of the workpiece or tool and the number of tool edges. The controller will calculate the spindle speed and feed rate according to the values you enter. As long as you give a specific value, the controller can calculate the remaining value. Sooner or later, this will come in handy when programming or optimizing a program on a machine tool

the milling version of this page includes a section called material, which provides recommended surfaces for 21 different materials - speed and feed per tooth. Use the left and right cursor keys to scroll through the bill of materials, which are distinguished from "20 gray cast iron" to "heat-resistant cobalt alloy"

the lower part of the page is also "speed and feed", including a simple calculator, which is used to calculate the pitch, spindle speed value and feed rate during hard tapping. Enter any two of these values, and the calculator can calculate the third value

the last two calculator pages can help solve additional trigonometric problems. Press page down continuously to display the circle-line-tangent and circle-circle-tangent pages

these pages can help you determine the tangent point of a circle and a straight line, or the intersection of two circles and the common tangent. These problems occur much more frequently than we think, and if there is no calculator, the handling of these problems will become very troublesome

The case ofcircle-circle-tangent is the most difficult to deal with, because there are a total of four tangent points between two circles and two common tangents. Enter the position of the X and Y axes and the radius of the two circles, and the calculator will give four tangent points on the X and Y axes. Press F1 to switch between two different schemes. Then a data prompt appears, asking you to enter the coordinates of the "F" (from) or "t" (to) point, and then you can get the automatically generated G code. As before, you can press F3 in edit mode to paste the highlighted code line onto the data input line, so as to transfer these G code lines to your program. The command line you insert can be executed later

in addition to these useful calculators, you can also use the help/calc button to see two more useful pages

press this button for the third time, and the machine will display a drilling tapping chart in full decimal system and equivalent to metric system

turn down and you will find its value. It has all the bottom hole diameters up to the diameter of 1 'large thread, including the metric dimension table

press the help/calc button again, and the system will display a real-time clock, displaying the current date and time. Here you can easily modify the date and time on your machine, so that the information recorded by your machine is always correct

we found that most, if not all, of the information on the help/calc page also appears in your Haas operation manual or excellent mechanic's Guide. But now, when you operate a Haas machine tool, the information is in front of you. You don't need to look everywhere and waste time. Just press the button, you can find the answer you want. An important reason why help and calculator features are designed into Haas control is for your convenience

all the features we are involved in can be found in Haas' latest control software. If you have an old machine tool or an earlier version of software, please contact your local HFO. Upgrading your software and including these latest resources is just a simple task. (end)

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