1. Equipment use:

BOSM horizontal counter drilling and boring machine is a special Machine for your company to process tower crane caps. The Machine is equipped with 2 sets of horizontal drilling and boring power heads, which can realize drilling, milling and boring of workpieces within the effective stroke range. Cutting and other processing, the equipment positioning speed is fast, the processing accuracy is high, and the processing efficiency is high.

2. Equipment structure characteristics:

2. 1. Main components of the Machine

The main components of the Machine: bed, worktable, left and right columns, saddles, rams, etc., large parts are made of resin sand molding, high-quality gray iron 250 casting, annealed in hot sand pit→vibration aging→hot furnace annealing→vibration aging→ Rough machining→vibration aging→furnace annealing→vibration aging→finishing to completely eliminate the negative stress of the parts and keep the performance of the parts stable. The workbench of the equipment is fixed, and the power heads on both sides can move in the front and rear directions of the base; the Machine has functions such as drilling, boring, countersinking, tapping, etc. The cooling method of the tool is internal cooling plus external cooling. The Machine contains 5 feed axes, 2 cutting power heads, which can be synchronized with 5 axes at the same time, or can be single-acting. The axial direction of the Machine and the power head are shown in the figure below.

2. 2 The main structure of the axial transmission feed part

2.2.1  X axis: The power head reciprocates laterally along the guide rail of the base.

X1-axis drive: AC servo motor plus high-precision planetary reducer is used to drive the power head through the ball screw drive to realize the linear motion of the X-axis.

X2-axis transmission: AC servo motor plus high-precision planetary reducer is used to drive the power head through ball screw transmission to realize X-axis linear motion.

Guide rail form: Two high-strength precision linear guide rails are tiled on the widened base.

2.2   Y1 axis: The power head reciprocates up and down on the column.

Y1-axis drive: Adopt AC servo motor to drive through ball screw to realize linear motion of Y1-axis. Guide rail form: 4 pieces of 45 type linear guide rails.

2.2.3   Y2 axis: The power head reciprocates up and down on the column.

Y2-axis transmission: AC servo motor is used to drive through ball screw to realize linear motion of Y1-axis.

 Guide rail form: 4 pieces of 45 type linear guide rails.

2.2.4   Z1 axis: The power head reciprocates back and forth on the saddle.

Z1-axis transmission: AC servo motor and high-precision planetary reducer are used to drive the movement through the ball screw to realize the linear motion of the Z1-axis.

2.2.5   Z2 axis: The power head reciprocates back and forth on the saddle.

Z2-axis transmission: AC servo motor and high-precision planetary reducer are used to drive the movement through the ball screw to realize Z2-axis linear motion.

2.3. Chip removal and cooling

There are flat chain chip conveyors installed on both sides under the workbench, and the iron chips can be discharged into the chip conveyor at the end to realize civilized production. There is a cooling pump in the coolant tank of the chip conveyor, which can be used for internal cooling + external cooling of the tool to ensure the performance and service life of the tool, and the coolant can be recycled.

3. Full digital numerical control system:

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

3.2. With tool lifting function, the tool lifting distance can be set on the man-machine interface. When the distance is reached, the tool will be lifted quickly, and then the chips will be thrown away, and then fast forward to the drilling surface and automatically converted to work.

3.2. Centralized operation control box and handheld 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.

3.2.. The equipment has the function of previewing and re-inspecting the hole position before processing, and the operation is very convenient.

4. Automatic lubrication

Machine precision linear guide rail pairs, precision ball screw pairs and other high-precision motion pairs are equipped with automatic lubrication systems. The automatic lubricating pump outputs pressure oil, and the quantitative lubricator oil chamber enters the oil. When the oil chamber is filled with oil and the system pressure rises to 1.4~1.75Mpa, the pressure switch in the system is closed, the pump stops, and the unloading valve is unloaded at the same time. When the oil pressure in the road drops below 0.2Mpa, the quantitative lubricator starts to fill the lubricating point and completes one oil filling. Due to the precise amount of oil supplied by the quantitative oiler and the ability to detect the system pressure, the oil supply is reliable and ensures that there is an oil film on the surface of each kinematic pair, which reduces friction and wear and prevents damage to the internal structure caused by overheating. , to ensure the accuracy and life of the Machine.

5. Machine use environment:

Power supply: Three-phase AC380V±10%, 50Hz±1 Ambient temperature: -10°~ 45°

6. Acceptance criteria:

JB/T10051-1999 "General Technical Specifications for Hydraulic System of Metal Cutting Machines"