1. The operators of machinery and equipment must be in good health and pass professional training exams. They can only operate independently after obtaining the operation certificate or special type of operation certificate issued by the relevant department. The student must work under the guidance of the master.
2. During mechanical operations, the operator must not leave the job without authorization or hand over the machine to a non-local operator. Do not allow irrelevant personnel to enter the work area and operating room. When working, ideas should be concentrated and non-drinking operations are strictly prohibited.
3. Both mechanical operators and cooperating personnel must wear labor protection articles in accordance with regulations, and long hair must not be exposed. Do not wear hard-soled shoes and slippers.
4. The machinery and equipment used for daily operations of two shifts or more shall be subject to transitional shifts. Operators should carefully fill in the shift record.
5. Before start-up, all parts should be checked for lubrication and tightening conditions. There should be no gaps in the cutters. After start-up, they should be idling for 1 to 2 minutes. After they are confirmed to be normal, they can be operated.
6. The thickness of the shear plate must not exceed the capacity specified by the shear. When narrowing the plate, a piece of wider steel plate should be pressed on the sheared plate so that when the vertical pressing device is dropped, the sheared plate can be pressed firmly.
7. The gap between the upper and lower cutters shall be adjusted according to the thickness of the sheared plate. The gap between the cutters shall not be greater than 5% of the thickness of the plate, and shall not be greater than 7% when the bevel is sheared. After the adjustment, the hand rotation and the empty vehicle operation test shall be applied.
8. Braking devices should be adjusted in time according to wear conditions.
9. When one or more people work, they must wait for the commander to send a signal to work. When the material is fed, it must be stopped after the scissors are stopped. It is forbidden to put his hand into the inside of the vertical pressing device.
10. When feeding, put, lay flat, put steady, fingers should not be close to the cutter and the pressure plate.
11. After the operation, cut off the power supply, lock the gate, wipe and lubricate.
A 3-Axis CNC Machining Center/Mill is used for creating various industrial parts. This is achieved by using a wide-range of tooling and cutters depending on the type of material being cut and the end product being manufactured.
A 3-axis CNC Mill works on three separate axes:
X-Axis: Moving longitudinally or [left-to-right"
Y-Axis: Moving laterally or [front-to-back"
Z-Axis: Moving Vertically or [up-and-down"
CNC Vertical Machining Centers can include an additional axis to do specific cutting applications.
Rotary Tables are common as a 4th Axis on mills. They can vary in size and weight capacities and can have a horizontal or vertical configuration. They are generally an add-on to a standard 3-axis mill. The mill will have to have a proper 4th axis interface (generally a 4th axis card, drive and CNC Control) to accept a 4th axis rotary table.
Trunnion Tables can also be an add-on to a vertical CNC Mill. A Trunnion table adds a 4th and 5th axis to a standard mill by incorporating an A-Axis (which rotates around the X-Axis) as well as a C-Axis (which rotates around the Z Axis).
A true 5-axis machine can allow for continuous 5-axis machining simultaneously. This increases both speed and accuracy when machining the part.
CNC Vertical Mills generally have a single spindle, automatic tool changer, work table and CNC Control.
The spindle on a CNC Machining Center can have a wide range of speeds depending on what material is being cut and the depth of cut that is required. Typical spindle speed ranges from 0 to 10,000 RPM. Higher speeds are used for lighter materials including graphite and aluminum among others. Higher speeds can reach 12,000 RPM up to 50,000 RPM and higher.
The Spindle is loaded with tool holders and cutters to achieve the proper material removal. There are many different styles of tool holders including BT and CAT – which have a conical shape as well as HSK, which uses flanges instead of a taper to lock the holder in place. BT and CAT Holders can come in various sizes including 30, 40 and 50 taper depending on the size of tool the cutter requires. HSK (Hollow taper ShanK) comes in a variety of types – A through F – and sizes from HSK-32 up to HSK-160. HSK is considered a better tool holder for high speed machining as there is more surface contact between the spindle and the holder, reducing vibration and keeping the tool from pulling back into the receiver when cutting at high speeds.
A CNC Vertical Machining Center offers different styles of automatic tool changers as well. The most common style is the umbrella-style. This is where the tool holders are loaded into the carousel vertically. The other style is a drum or side-mount style. The tools are loaded in horizontally in this type. This allows for greater part height in the work area and can help accommodate a rotary table, fixture or any additional work holding devices mounted to the table.
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Jiangsu Hoston Machine Tools Co., Ltd. , https://www.haostonmachinetools.com