I. What is the difference between a gong machine and a milling machine
A gong machine is actually a milling machine, which is a name for a mold machining machine, but it is called in different places The difference is that the mainland side is called milling machine, while Taiwan and Hong Kong are called gong bed.
Second, the operation process of the gong bed
The gong bed can be used for roughing and preliminary finishing, and there are many types of milling cutters, such as cutting Rough rough leather milling cutters, two-edged milling cutters, as well as finishing four-edged milling cutters, three-edged milling cutters, bevel milling cutters, etc. To operate the gong bed, you must first understand what is the start of the gong bed, low-speed gear, high-speed gear, forward rotation, reverse rotation, etc. Maybe you are not very familiar with the practice at the beginning, and you can’t reach the point where you can know what gear it is by listening to the sound, but the gears have English signs, which can be used by comparison. It also has the function of a drilling machine, which can be used to punch holes. Pay attention when using the gong bed, sometimes it may be necessary to remove the belt on the main shaft of the gong bed and replace it with another “belt position”. Why change a “belt position”? Because of different speed needs. Anyone who has studied physical kinematics knows that under the same power, when the driving wheel is unchanged, the size of the driven wheel affects the angular velocity of the driven wheel (this driven wheel is the main shaft). If the speed is too fast, it will cause the belt to slip and fail to achieve the purpose of processing. For some processing depths and small apertures, the belt must be adjusted and the slow gear should be used.
In addition to drilling, the most common method is reaming. For example, when drilling a φ20 positioning hole, it is impossible to directly use a 20mm drill to process it. Generally, the most common method is to use φ12 first. The drill bit first drills a hole, then uses a 16mm drill bit for reaming, and finally uses a φ20mm drill bit for final processing. If you directly use a 20mm drill, it will definitely break the drill. If you use a φ20mm drill directly, the center of the machined hole will not be machined. This is limited by the structure of the drill, and because of mechanical friction The heat generated is difficult to dissipate, causing the drill to overheat and chip, causing unnecessary losses.
