A: Assuming the tool moves, the workpiece is stationary
B: Assuming the workpiece moves, the tool is stationary
C: It depends on the situation
D: Assuming that the tool and workpiece are not moving
举一反三
- (3 points) The machining process system includes (). A: machine tool, tool, fixture and workpiece B: worker, tool, fixture and workpiece C: machine tool, tool, worker and workpiece D: machine tool, tool, fixture and worker
- The values set in the G54 are ( ). A: Origin of workpiece coordinate system B: Offset of origin of workpiece coordinate system relative to origin of machine tool coordinate system C: Length deviation value of tool D: Offset of workpiece coordinate system origin relative to tool alignment point
- To set the workpiece coordinate system with G54, the tool setting point must be used as the starting point of tool movement relative to the workpiece.
- The technological system consists of A: machine tool B: fixture C: cutting tool D: workpiece
- (3 points) The core of machining process system is (). A: machine tool B: fixture C: tool D: workpiece
内容
- 0
What is the main form of turning machining? ( ) A: Workpiece rotation B: Workpiece linear motion C: Tool rotation D: Tool linear motion
- 1
(10 points) First, position the workpiece in the machine tool or fixture, adjust the relative position of the tool and the positioning element, and keep the position unchanged during the processing of a batch of parts, so as to ensure the machining size of the workpiece is called (). A: trial cutting method B: automatic control method C: fixed size tool method D: adjustment method
- 2
The tool tip of the external turning tool is installed higher than the workpiece rotation axis, the working rake Angle of turning tool is （ ）than that of marked rake angle A: lager B: smaller C: equal to D: unidentified
- 3
In turning, the<br/>most cutting heat ()。 A: pass<br/>on the workpiece B: pass<br/>on the cutter C: pass<br/>on the machine tool D: take away by chip
- 4
Conventional milling machine tool is ________ from CNC milling machine tool in construction.