Horizontal machining center manufacturer: introduce the operation points and working principle of horizontal machining center
Number of views：374
date：2021-07-15
When using horizontal machining center, many users may not pay special attention to the key points of operation, and some detailed problems are often ignored
1. Ensure that all processing contents of the workpiece are completed within the stroke range of the spindle.
2. Try clamping once to finish all the processing. When the clamping point needs to be replaced, special attention should be paid not to damage the positioning accuracy due to the replacement of the clamping point, and instructions should be given in the process document when necessary. In order to make the bottom surface of the fixture contact with the worktable, the flatness of the bottom surface of the fixture must be within 0.01-0.02MM, and the surface roughness should not be greater than ra3.2um.
3. The fixture should have as few parts as possible and high rigidity.
4. In order to simplify the positioning, each positioning surface of the fixture should have the coordinate size relative to the machining origin.
5. For the machining center with interactive worktable, the fixture design must prevent the space interference between the fixture and the machine tool caused by the movement, lifting, lowering and rotation of the worktable.
6. The fixture should be as open as possible, the space position of clamping element should be as small as possible, and the installation of fixture should not interfere with the tool path of working steps.
7. After a short time of disassembly, it can be replaced with a fixture suitable for the new workpiece. Since the auxiliary time of the machining center has been compressed to a very short time, the loading and unloading time of the supporting fixture will not be too much.
8. In order to ensure that the installation position of parts is consistent with the direction of workpiece coordinate system and machine coordinate system selected in programming and directional installation.
Working principle of horizontal machining center:
Once the workpiece is clamped on the machining center, the digital control system can control the machine tool to automatically select and replace the tool according to different machining procedures, and automatically change the spindle speed, feed speed and relative motion path of the tool. Workpiece and other auxiliary functions, in turn to complete the multi-faceted processing of the workpiece. It has a variety of tool changing or tool changing functions, which greatly improves the production efficiency.
Due to the centralized process and automatic tool change, the machining center reduces the time of workpiece clamping, measurement and machine adjustment, so the cutting time of the machine tool reaches about 80% of the starting time of the machine tool (only 15-20% for normal machine tool); At the same time; It also reduces the turnover between workpieces, the storage time between processing and process, shortens the production cycle, and has obvious economic effect. The machining center is suitable for small and medium batch production with complex parts, high precision and frequent product replacement.
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