Horizontal machining center meets the precision machining of complex parts

Horizontal machining center refers to a machining center machine tool with a spindle axis parallel to the work table. It has a high technical content and is one of the iconic products of the development level of the CNC machine tool industry. Large parts can be processed, and indexing and reversal processing can be performed. It is suitable for multi-process processing such as milling, drilling, boring, reaming, tapping, two-dimensional and three-dimensional curved surfaces of parts with multiple working surfaces. It has a finishing box in one clamping Outstanding function of body hole system and plane processing. In the car, aerospace, ship, power generation and other industries, it is used for precision and efficient processing of messy parts. It can achieve high-speed and precision processing of general parts, and can basically meet the needs of users.

The horizontal machining center mainly controls the basic movement of the machine tool through the numerical control system and servo drive equipment. The main feature of its structure is the horizontal arrangement of the spindle, which is generally composed of 3-5 moving parts (headstock, work table, column or spindle sleeve, etc.). An automatic communication workbench is set on the horizontal machining center to form a flexible production unit (FMC) to end the automatic communication of the workpiece, that is, another workpiece can be loaded and unloaded during processing. After the workpiece is clamped once, the multi-process automatic processing is completed, the tool is automatically selected and replaced, the spindle speed and feed rate of the machine tool are automatically changed, the movement path change of the tool and the workpiece is automatically ended, and other auxiliary functions are automatically ended. It is suitable for mass production of products with messy parts and high precision requirements, especially the processing of boxes and messy structural parts.

Principle of operation:

After the workpiece is clamped on the machining center once, the digital control system can control the machine tool to automatically select and replace tools according to different processing procedures, automatically change the spindle speed, feed speed, and the motion path of the tool relative to the workpiece and other auxiliary functions, in turn End multi-process processing on multiple surfaces of the workpiece. And there are a variety of tool change or tool selection functions, and then greatly increase the output power.

Many users may not pay special attention to the main points of operation when using it. Some detailed issues are often simply ignored, such as:

1. Ensure that all the processing content of the workpiece is completed within the stroke range of the spindle.

2. Try to end all processing content in one setup. When it is necessary to replace the clamping point, pay special attention not to damage the positioning accuracy due to the replacement of the clamping point, and specify it in the process file if necessary.

3. The fixture should have as few components as possible and high rigidity.

4. In order to simplify the positioning, each positioning surface of the fixture should have a coordinate scale relative to the processing origin.

5. Regarding machining centers with interactive worktables, fixture planning must prevent the space interference between fixtures and machine tools due to the movement, lifting, lowering, and rotation of the worktable.

6. The clamp should be opened as far as possible, the spatial orientation of the clamping element is as low as possible, and the fixture of the device cannot interfere with the tool path of the work step.

7. It can be changed into a fixture suitable for new workpieces after a short time of disassembly. Because the auxiliary time of the machining center has been shortened very short, the loading and unloading of the supporting fixtures cannot take up too much time.

8. In order to ensure the consistency of the orientation of the part device with the selected workpiece coordinate system and machine tool coordinate system in the programming, and the orientation device.