CNC lathe turning process processing to pay attention to the problem

Problems to be noted in the process of CNC lathe turning: The process of CNC lathe machining is similar to that of ordinary lathe, but since CNC lathe is a single clamping and continuous automatic machining to complete all turning processes, the following aspects should be noted.

1. Reasonable choice of cutting dosage.

2. Reasonable choice of tool.

(1) When rough turning, choose the tool with high strength and good durability in order to meet the requirements of large back draft and large feed when rough turning.

(2) When finishing turning, choose tools with high precision and good durability to ensure the requirements of machining accuracy.

(3)In order to reduce the tool changing time and facilitate tool setting, machine chucked tools and machine chucked inserts should be used as much as possible.

3. Rational selection of fixtures.

(1) try to use general-purpose fixture to clamp the workpiece, to avoid the use of special fixtures.

(2) parts positioning reference overlap, in order to reduce positioning errors.

4. Determine the machining route: machining route refers to the CNC machine tool machining process, the tool relative to the trajectory and direction of the part.

(1) should be able to ensure machining accuracy and surface roughness requirements.

(2) should be as short as possible to shorten the machining route and reduce the tool empty travel time. Rotor pump

5. The connection between machining route and machining allowance: At present, under the condition that the CNC lathe has not yet reached popular use, the excessive allowance on the blank, especially the allowance containing forging and casting hard skin layer, should generally be arranged to be processed on the ordinary lathe. If you want to use CNC lathe to process, you need to pay attention to the flexible arrangement of the program.

6. fixture installation points: the current hydraulic chuck and hydraulic clamping cylinder connection is achieved by the tie rod. Hydraulic chuck clamping points are as follows: first remove the nut on the hydraulic cylinder with a moving hand, remove the drawtube and pull out from the back end of the spindle, then remove the chuck fixing screw with a moving hand to remove the chuck.