Safety operation procedures of milling machine?

1. Before working, check whether all systems of the machine tool are safe and easy to use, whether the position of the handwheel crank is correct, whether the fast feed is barrier-free, and whether the limit switch can play a role in safety protection.

2, every time driving and starting the moving parts, pay attention to whether the cutter and handle are in the required position. When pulling the fast moving handle, you should start it gently first to see if the moving position and direction are consistent. It is forbidden to start the fast moving handle suddenly.

3. Install mandrel, bracket, washer, indexing head, vice, cutter hole, etc. , and wipe the contact surface clean.

4. Before starting the machine tool, check whether the tool is installed firmly, whether the workpiece is firm, the pressure plate must be stable, the pad iron supporting the pressure plate should not be too high or too many blocks, and the tool rest washer cannot be used for other pads. Check parallelism before use.

5. Up and down workpieces, tool alignment, fastening, adjustment, speed change and measurement of workpieces are carried out on the machine tool. Must stop, when replacing the arbor, cutter head, end mill head and milling cutter, all should stop.

6. When the machine tool is running, it is not allowed to measure the size, aim at the sample or touch the machined surface by hand. When machining, don't put your head near the machining surface to observe the cutter's eating. When loading and unloading the workpiece, the tool must be moved.

7. When removing the end milling cutter, the table should be padded with wooden boards, and it is forbidden to hold the cutter head by hand.

8, flat milling cutter, when using a wrench nut, pay attention to whether the wrench opening selection is appropriate, don't push too hard to prevent slipping.

9. Feed the knife slowly. When the knife approaches the workpiece, it needs to be fed manually, and it is not allowed to feed quickly. When it is feeding, it is not allowed to stop. When milling deep grooves, stop and retract the cutter. Pay attention to handle injury during fast feeding. When the universal milling machine feeds vertically, the workpiece should be clamped at a certain distance from the workbench.

10, the knife should not be eaten too hard, and the handwheel on the workbench must be pulled off to feed automatically. Don't change the feed speed suddenly.

1 1. During forward milling, the clearance between the lead screw and the nut must be cleared to prevent the milling cutter from being damaged.

12, when driving fast, the handwheel must be separated from the rotating shaft to prevent the handwheel from rotating and hurting people. During high-speed milling, it is necessary to prevent iron filings from hurting people, and it is not allowed to brake suddenly to prevent shaft breakage.

13. The longitudinal, transverse and vertical movement of the milling machine should be consistent with the direction indicated by the operating handle, otherwise it will not work. When the milling machine is working, only one direction can be selected for longitudinal, transverse and vertical automatic feed, and the safety baffles in all directions cannot be removed at will.

14. When the work is over, turn off the switch, pull back the handle of the machine tool, wipe the machine tool, inject lubricating oil and keep the machine tool clean.

Extended data:

Milling machine mainly refers to the machine tool that uses milling cutter to process various surfaces of workpiece. Usually, the milling cutter is mainly rotating, and the movement of the workpiece and milling cutter is feeding. Can process planes and grooves, as well as various curved surfaces and gears.

Milling machine is a machine tool for milling workpieces with milling cutter. Milling machines can not only mill planes, grooves, gear teeth, threads and spline shafts, but also process more complex contours, with higher efficiency than planers, and are widely used in machinery manufacturing and repair departments.

In addition, it can also be used to process the surface and inner hole of the rotary body and cut it off. When the milling machine is working, the workpiece is mounted on the accessories such as the workbench or the indexing head, and the rotation motion of the milling cutter is the main motion, supplemented by the feeding motion of the workbench or the milling head, so that the workpiece can obtain the required machining surface. Because it is multi-edge intermittent cutting, the productivity of milling machine is high.

With the intensification of mechanization, numerical control programming has been widely used in machine tool operation, which has greatly released the labor force. CNC programming milling machine will gradually replace manual operation. The requirements for employees will be higher and higher, and of course the efficiency will be higher and higher.

The inspection items of milling machine are basically the same as those of other metal cutting machines. Special standards include accuracy and performance, which can be summarized as: the accuracy of the hole (or spindle) where the installation tool is located, the accuracy of the tool rest, ram (or rocker) workbench, the mutual position accuracy of the installation tool and workbench, and the machining accuracy of the specified workpiece.

Inspection must also refer to JB2670-82 General Rules for Inspection of Metal Cutting Machine Tools, and the exported products shall not be lower than the first-class products.

References:

Baidu encyclopedia _ milling machine