Jig is what?
What is the difference between the workpiece positioning and clamping?
With continuous development of precision machining
technology, the product processing precision is also put forward higher request, therefore must be applied in the process of precision machining and reliable jig, in order to ensure the accuracy of the machining position, in the course of all processing must be use jig implementation, so the jig also become an important part of machining system.
Different artifacts in different process, adopted by the jig is different also, in order to meet the demand of positioning, need to clear before workpiece processing its relative position in the machine tool or tools, cutting and forming of good sports location, workpiece clamping of the work is completed.
For the positioning of the workpiece, the actual accuracy requirements need to be clarified.
Positioning process involves three relative position: 1.
The workpiece on the fixture positioning, 2.
Workpiece positioning in machine tool, and 3.
Positioning fixture on the machine.
The workpiece positioning in machine tool needed a jig localization to implement.
Workpiece positioning work is completed, need to apply the pending device ensure the workpiece has enough clamping force is fixed, workpiece in precision machining process must also be located in advance, otherwise under the influence of cutting force and inertial force will inevitably result in workpiece displacement or vibration, ruined the original accurate positioning, will affect the machining accuracy, precision machinery parts, machine tool clamping device on the important role of the clamping force is produced.
Clamping and positioning of the concept of: after clamping workpiece in three dimensional space position can't change, but do not tell the artifacts within the space location is determined, workpiece positioning is the need to get the right position in the fixture, clamping process is to ensure that have set good position will not change under the action of external force.
Workpiece in the fixture locating method is the key to production process and method of positioning task is to choose the right localization way, just in time to deal with the issue of owe positioning and orientation, correctly calculate the positioning error.
For has not been positioning of the workpiece, it has six degrees of freedom in space rectangular coordinate system, the workpiece the workpiece positioning task is to some degree of freedom to restrict, or all of the degrees of freedom is workpiece positioning principle of six by six points to limit the freedom of the workpiece, ensure the accurate positioning in the workpiece in three-dimensional space.
The above information is derived from the shenzhen CNC precision machining manufacturer Xavier company.
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