Split Type Drilling And Milling Machine

1)Worktable：

The bed is an integral casting, which is finished after secondary annealing and vibration aging treatment. It has good dynamic and static rigidity and does not deform. There are T-slots with reasonable finishing layout on the worktable plane for clamping workpieces. The bed base is equipped with 2 high-precision linear guides (a total of 4 on both sides), which uniformly stresses the slide block of the guide rail and greatly improves the rigidity and tensile and compression resistance of the machine tool. The drive system uses AC servo motors and precision ball screw pairs. Side drive makes the gantry move in X axis direction. Adjustable bolts are distributed on the bottom of the bed, which can easily adjust the level of the bed table.

2)Moving gantry：

The mobile gantry is made of gray iron (HT250), and two 55 # ultra-high-capacity rolling linear guide pairs are installed on the front side of the gantry. A set of precision ball screw pair and a servo motor make the power head slide move in the Y-axis direction. The power head slide is equipped with a drilling power head. The movement of the gantry is realized by the servo motor driving the ball screw mother to rotate on the ball screw through a precision coupling.

3)Moving sliding saddle：

The mobile sliding saddle is a precision cast iron structural component. Two ultra-high-capacity NC linear guide rail slides, a set of precision ball screw pairs, and a high-precision planetary reducer are connected to the servo motor, and are equipped with nitrogen. The balance cylinder balances the weight of the power head, reduces the load of the lead screw, extends the service life of the lead screw, and drives the drilling power head to move in the Z axis direction, which can realize the action of fast forward, industrial advance, fast retreat and stop of the power head. Chip breaking, chip removing, pause function.

4)Drilling power head(Spindle)：

The drilling power head uses a dedicated servo spindle motor, which drives a dedicated precision spindle by decelerating the toothed synchronous belt to increase torque. The spindle uses front three, two, and five-row Japanese angular contact bearings to achieve stepless speed change. Quick and easy replacement, the feed is driven by servo motor and ball screw. The X and Y axes can be linked, and semi-closed loop control is used to achieve linear and circular interpolation functions. Spindle end is BT50 tapered hole, equipped with Rotorfoss high-speed rotary joint from Italy, which can use high-speed U drill (violent drill) and core drill bit to discharge water.The spindle center water outlet function can improve the cutting efficiency, realize deep hole processing and protect the tool to reduce the use cost.

4.1 The casing and slide table of the drilling power head both adopt a casting structure to enhance their rigidity and stability and reduce vibration and noise.

4.2 The machine tool can be controlled by electronic hand wheel; in order to save time and improve production efficiency during processing, when the first hole is drilled to set the feed position, the other same holes can be drilled to achieve fast-forward → industrial advance → fast-reverse Program, and should also have automatic chip breaking, chip removal, pause and other functions.

4.3 The ram is equipped with a liquid nitrogen balance system to reduce the load on the Z axis and increase the service life of the Z axis screw.

4.4 The Z-axis servo motor uses a power-down brake motor. When the power is suddenly cut off, the brake is held to avoid the accident caused by the headstock falling.

4.5 Headstock

4.5.1. The headstock adopts four heavy-duty linear guide rails, which have high rigidity of movement, high positioning accuracy, and good stability at low speed.

4.5.2. Z-axis drive-The servo motor is directly connected to the ball screw through a coupling. The ball screw drives the headstock to move up and down on the saddle to achieve Z-axis feed. The Z-axis motor has an automatic brake function. When the power is off, the motor shaft is held tightly so that it cannot rotate.

4.5.3. The spindle group adopts Taiwan Jianchun high-speed inner water spindle, which has high precision and high performance. The main shaft grips the butterfly spring on the main shaft to act on the pull studs of the tool holder through the four-lobe type broaching mechanism under tension. The loose knife is pneumatic

5)Automatic lubrication device and protective device：

This machine tool is equipped with Taiwan's original volumetric partial pressure automatic lubrication device, which can automatically lubricate the motion pairs such as guide rails, lead screws, racks, etc., and there is no dead angle to ensure the service life of the machine tool. The guide rails on both sides of the machine bed are equipped with stainless steel protective covers, and the mobile gantry power head is equipped with flexible protective covers. Waterproof splash guards are installed around the workbench, and the water pipe lines enter the plastic towline protection. A soft transparent PVC strip curtain is installed around the spindle.

6)CNC Control System：

6.1With chip breaking function, chip breaking time and chip breaking cycle can be set on the man-machine interface.

6.2With the tool lifting function, the tool lifting height can be set on the man-machine interface. When drilling to this height, the drill bit is quickly raised to the top of the workpiece, and then the chip is thrown, and then fast-forwarded to the drilling surface and automatically converted to the work.

6.3The centralized operation control box and hand-held unit adopt numerical control system, and are equipped with USB interface and LCD liquid crystal display. In order to facilitate programming, storage, display and communication, the operation interface has functions such as man-machine dialogue, error compensation, and automatic alarm.

6.4The machine has the function of previewing and rechecking the hole position before processing, and the operation is very convenient.

7) Rail clamp

The clamp is composed of a clamp body and an actuator. It is a high-performance functional component used with the rolling linear guide pair. It generates a strong clamping force through the wedge-shaped block expansion principle. Features that increase stiffness.

Features:

?  Safe and reliable, strong clamping force, clamping non-moving XY axis during drilling and tapping processing.

?  Extremely high clamping force, increase the rigidity of the axial feed, and prevent the micro movement caused by vibration.

?  Quick response, opening and closing response time is only 0.06 seconds, which protects the machine tool and improves the life of the screw.

?  Durable, nickel-plated surface, good anti-rust performance.

?  Novel design to avoid rigid impact when clamping.

8) Automatic chip remover and circulating cooling device:

An automatic chip remover is arranged at the back of the workbench and a filter is arranged at the end. The automatic chip remover is a flat chain type, and a cooling pump is installed on one side. The outlet of the chip is connected to the central water filtration system. The coolant flows into the chip ejector. The chip ejector lift pump drives the coolant into the central water filtration system. The high-pressure cooling pump circulates the filtered coolant for cutting and cooling. And it is equipped with a chip transporting trolley, which is very convenient to transport iron chips. This equipment is equipped with internal and external cooling system for cutters. When drilling at high speed, the cutters are cooled by internal water and externally during light milling.

9)Central Outlet Filtration System：

The machine is equipped with a central water filtration system as standard, which can effectively filter the impurities in the coolant. The internal spray water system can prevent iron pins from tangling on the tool during processing, reducing tool wear, extending tool life, improving workpiece surface finish, and cutting tools. The high-pressure water outlet pin of the blade tip can well protect the surface of the workpiece, protect the high-speed rotary joint, prevent impurities from blocking the rotary joint, and improve the overall quality of the workpiece and work efficiency.

10)Photoelectric edge finder

The equipment is equipped with a photoelectric edge finder, which can easily and quickly locate the workpiece.

1) Insert the edge seeker into the spindle chuck of the machine tool, and slowly rotate the spindle to correct its concentricity.

2) Move the main shaft with the handwheel to make the edge of the steel ball of the edge seeker lightly touch the workpiece and turn on the red light. At this time, you can advance and retreat the spindle repeatedly to find the best point where the edge of the steel ball of the edge seeker contacts the workpiece .

3) Record the X and Y axis values displayed by the CNC system at this time and fill them in the computer.

4) Find multiple detection points in this way.

11) Tool wear alarm

The tool wear alarm mainly detects the current of the spindle motor. When the current exceeds the preset value, the device automatically judges that the tool is worn, at this time the spindle will automatically retract the tool and end the automatic program. Alert operator to tool wear.

12) Low water alarm

12.1 When the coolant in the filter is at the middle liquid level, the system automatically connects the motor to start, and the coolant in the chip remover automatically flows into the filter. When the high liquid level is reached, the motor automatically stops working.

12.2 When the coolant in the filter is at a low level, the system will automatically prompt the liquid level gauge to alarm. The spindle will automatically retract the tool and the machine will suspend work.

13) Power-off memory function

The operation is stopped due to sudden power failure, etc. Using this function can quickly and conveniently find the position of the last hole drilled before power failure. Operators can quickly move to the next step, saving searching time.