High Speed Vertical Machining Centers

Dongguan Jide Precision Machinery Technology Co., Ltd. is one of the most credible manufacturers and suppliers of high speed vertical machining centers in China. If you're going to wholesale high quality high speed vertical machining centers made in China, welcome to get quotation and free sample from our factory. All customized products are with high quality and competitive price.

The whole process of High Speed Vertical Machining Centers operation!

01 Boot preparation

Vertical Machining Centers will first return to the machine reference zero position (namely return to zero) every time the machine is turned on or the machine is reset by pressing emergency stop, so that the machine tool has a reference position for its subsequent operations.

02 Clamping the workpiece

Before the workpiece is clamped, the surfaces should be cleaned, and there should be no oil, iron filings and dust, and the burrs on the surface of the workpiece should be removed with a file (or oil stone).

The high-speed rail used for clamping must be smoothed by a grinder to make it smooth and level. The code iron and nut must be firm and can clamp the work piece reliably. For some small work pieces that are difficult to clamp, they can be clamped directly on the tiger; the workbench of the machine tool should be clean and free of iron filings, dust, and oil; the shim is generally placed At the four corners of the workpiece, for the workpiece with too large span, it is necessary to add a contour shim in the middle.

According to the size of the drawing, use a drawing rule to check whether the length, width, and height of the workpiece are qualified.

When clamping the workpiece, according to the clamping and placement method of the programming operation guide, consider avoiding the processed parts and the situation where the tool head may touch the fixture during processing.

After the workpiece is placed on the horn, it is necessary to pull the reference surface of the workpiece according to the requirements of the drawing, and check the verticality of the workpiece that has been ground on all six sides.

After the workpiece is pulled, the nut must be tightened to prevent the workpiece from being displaced during processing due to the unstable clamping; pull the table again to make sure that the error is not out of tolerance after the clamping is completed.

03 Number of workpiece touches

The clamped work piece can be used to touch the number head to set the reference zero position of the processing, and the number head can be photoelectric and mechanical. There are two methods: mid-point bumping and unilateral bumping. The steps for mid-point bumping are as follows:

Photoelectric static, mechanical speed 450~600rpm. Manually move the X-axis of the worktable with the middle touch to make the touch head touch one side of the workpiece. When the touch head just touches the workpiece and the red light is on, set the relative coordinate value of this point to zero; then move the work manually The X-axis of the stage makes the digital head touch the other side of the workpiece. When the digital head just touches the workpiece, write down the relative coordinates at this time.

According to its relative value, subtract the diameter of the bumper (that is, the length of the workpiece), and check whether the length of the workpiece meets the requirements of the drawing.

Divide this relative coordinate number by 2, the obtained value is the middle value of the X axis of the workpiece, and then move the worktable to the middle value of the X axis, and set the relative coordinate value of the X axis of this point to zero, this point is the workpiece The zero position on the X axis.

Carefully record the mechanical coordinate value of the zero position on the X axis of the workpiece in one of G54~G59, and let the machine tool determine the zero position on the X axis of the workpiece. Once again, carefully check the correctness of the data. The steps for setting the zero position of the workpiece Y axis are the same as the operation of the X axis.

04 Prepare all knives

According to the tool data in the programming operation guide, replace the tool to be processed, let the tool touch the height measuring device placed on the reference surface, and set the relative coordinate value of this point to zero when the red light of the measuring device is on.

Move the tool to a safe place, manually move the tool down 50mm, and set the relative coordinate value of this point to zero again. This point is the zero position of the Z axis.

Record the machine coordinate Z value of this point in one of G54~G59. This completes the zero setting of the X, Y, and Z axes of the workpiece. Once again, carefully check the correctness of the data.

The one-side touch count also touches one side of the X and Y axes of the workpiece according to the above method. The relative coordinate value of the X and Y axes of this point is offset. The radius of the touch head is the zero position of the X and Y axes. The mechanical coordinates of X and Y axis are marked in one of G54~G59. Once again, carefully check the correctness of the data.

Check the correctness of the zero point, move the X and Y axes to the side suspension of the workpiece, and visually check the correctness of the zero point according to the size of the workpiece.

Copy the program file to the computer according to the file path of the programming operation guide.

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05 Setting of processing parameters

Setting of spindle speed during processing:

N=1000×V/(3.14×D)

N: Spindle speed (rpm/min)

V: Cutting speed (m/min)

D: Tool diameter (mm)

Processing feedrate setting: F=N×M×Fn

F: Feeding speed (mm/min)

M: Number of cutting edges

Fn: Cutting amount of the tool (mm/revolution)

Cutting amount per blade setting: Fn=Z×Fz

Z: The number of blades of the tool

Fz: Cutting amount of each edge of the tool (mm/revolution)

06 Start processing

At the beginning of each program, you must carefully check whether the tool used is the tool specified in the programming guide. When starting processing, the feed speed should be adjusted to the minimum, single block execution, fast positioning, tool drop, and feed must be concentrated. Put your hand on the stop button and stop immediately if there is a problem. Pay attention to the direction of the tool movement to ensure safe feeding. Knife, and then slowly increase the feed speed to a suitable level, and at the same time add coolant or cold air to the tool and the workpiece.

Do not leave too far away from the control panel when roughing. If there is any abnormality, stop the machine for inspection in time.

Pull the meter again after roughing, to make sure that the workpiece is not loose. If there is, it must be re-calibrated and touched.

Continuously optimize the processing parameters during the processing to achieve the best processing results.

Because this process is a key process, after the workpiece is processed, it should be measured whether its main dimensions are consistent with the drawing requirements. If there is any problem, immediately notify the team leader or programmer to check and solve it. After passing the self-inspection, it can be removed. Must be sent to the inspector for special inspection.

Processing type:

Hole processing: Before drilling on the machining center, you must first use a center drill to locate, then use a drill that is 0.5~2mm smaller than the size of the drawing, and finally use a suitable drill to finish machining.

Reaming processing: When reaming the workpiece, you must first use a center drill to locate, then use a drill with a size of 0.5~0.3mm smaller than the drawing size to drill, and finally ream with a reamer. When reaming, pay attention to controlling the spindle speed. Within 70~180rpm/min.

Boring processing: To boring the workpiece, first use a center drill to locate, then use a drill with a size of 1~2mm smaller than the drawing to drill, and then use a rough boring tool (or milling cutter) to process to only one side 0.3mm For the left and right machining allowance, use the fine boring tool with the pre-adjusted size to perform the fine boring. The last time the fine boring allowance cannot be less than 0.1mm.

Direct numerical control (DNC) operation: before DNC numerical control processing, the workpiece should be clamped, the zero position should be set, and the parameters should be set. Open the processing program to be transferred in the computer to check, then let the computer enter the DNC state, and enter the file name of the correct processing program. Press the TAPE key and the program start key on the processing machine tool, and then the machine tool controller will flash with the word LSK. Press the enter keyboard on the computer to perform DNC data transmission processing.

07 Self-inspection content and scope

The processor must read the content of the process card clearly before processing, clearly know the part, shape, and dimensions of the workpiece to be processed, and know the processing content of the next process.

Before the workpiece is clamped, the size of the blank should be measured whether it meets the requirements of the drawing. When the workpiece is clamped, it must be carefully checked whether its placement is consistent with the programming operation guide.

The self-check should be carried out in time after the rough machining is completed, so that the data with errors can be adjusted in time. The content of the self-inspection is mainly the position and size of the processing part. Such as: whether the workpiece is loose; whether the workpiece is correctly centered; whether the size from the processing part to the reference edge (reference point) meets the requirements of the drawing; the size of the position between the processing parts. After checking the position and size, the roughing shape ruler should be measured (except for the arc).

Finish machining is performed after rough machining self-inspection. After finishing processing, workers should conduct self-inspection on the shape and size of the processed parts: test the basic length and width dimensions of the processed parts of the vertical surface; measure the basic point size marked on the drawing for the processed parts of the inclined surface.

After the worker completes the self-inspection of the workpiece and confirms that it is in compliance with the drawings and process requirements, the workpiece can be removed and sent to the inspector for special inspection

High speed vertical machining centers parameters

V1165 High speed vertical machining centers standard configuration :

1. Taiwan spindle unit 80-10000rpm;

2. Numerical control system: FANUC/SIEMENS/MITSUBISHI

3. Three-axis (X/Y/Z) feed servo motor drive, Z-axis with power-off brake;

4. Taiwan 24 manipulator tool magazines;

5. Taiwan HIWIN linear rolling guide;

6. Rigid tapping;

7. Mobile hand pulse;

8. Centralized automatic oil lubrication;

10. External cooling system and water tank;

11. Air cooling

12. Simple oil-water separation device;

13. Fully protective sheet metal shield and guide rail shield;

14. Adjust the shim iron and a set of ER type BT40 knife handle;

15. Work lights, warning lights; electric cabinet heat exchangers;

Choosing the right machine greatly improves your work efficiency

Integral casting structure linear guide

The main components such as the bed base, the bed, and the headboard are all cast from high-strength materials to ensure the long-term use of the machine tool.

Quenching rail

Taiwan line rail/screw, wear-resistant cast iron, audio quenching guide rail.

Imported bearings

Computer balance correction and run-in test prolong the service life of the whole set of spindles.

V1165High speed vertical machining centers  advantages 

In addition to the characteristics of ordinary milling machine processing, CNC milling processing also has the following characteristics:

1. The parts have strong adaptability and flexibility, and can process parts with particularly complex contour shapes or difficult to control size.

Such as mold parts, shell parts, etc.;

2. It can process parts that cannot be processed or difficult to process by ordinary machine tools, such as complex curve parts described by mathematical models.

And three-dimensional space surface parts;

3. It can process parts that need to be processed in multiple processes after one clamping and positioning;

4. The processing accuracy is high, the processing quality is stable and reliable, the pulse equivalent of the numerical control device is generally 0.001mm, and the high-precision

The numerical control system can reach 0.1μm. In addition, the numerical control processing also avoids the operating errors of the operators;

5. The high degree of production automation can reduce the labor intensity of the operator. Conducive to the automation of production management;

6. The production efficiency is high. The CNC milling machine generally does not need to use special fixtures and other special process equipment. When replacing the workpiece, it only needs to call the processing program, clamping tool and adjustment tool data stored in the CNC device, thus greatly shortening the production. cycle. Secondly, the CNC milling machine has the functions of a milling machine, a boring machine, and a drilling machine, which makes the process highly concentrated and greatly improves

Increased production efficiency. In addition, the spindle speed and feed speed of the CNC milling machine are infinitely variable, so it is helpful to choose the cutting amount.

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