BT-150DS CNC Universal Tool Grinder

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Product description

Bt-150DS is a six axis CNC tool grinder, which is composed of six axes: grinding wheel swing axis (x axis), workpiece feed axis (Y axis), grinding wheel vertical motion axis (Z axis), workpiece horizontal rotation axis (c axis), tool indexing axis (a axis) and grinding wheel inclination angle (b axis). The machine tool is suitable for the production and grinding of medium and large quantities of carbide insert, PCD insert, CBN insert and rotary carbide tools. As long as the alignment is completed and the switch is pressed, the system will automatically complete the grinding under the action of the gravity of the heavy hammer, realizing the ideal state of “constant pressure grinding and flexible feeding”. Due to the high hardness of diamond material (PCD) and the rapid wear of grinding wheel, the system can automatically detect and compensate this wear, and can maintain the dimensional accuracy of grinding for a long time.

• Machine features:

1. Mechanical structure of machine tool: the machine tool bed (base) adopts an integral casting weighing up to 1.5 tons, which can meet the grinding requirements of any superhard material. The machine tool is equipped with a grinding fluid protective cover to ensure that the grinding fluid will not splash everywhere. The optical lens barrel and CCD camera are equipped with protective covers to ensure that the lens does not enter water during operation and that its optical adjustment is not inadvertently changed. Lighting lamps are installed inside the machine tool.

2. Machine tool motorized spindle: the grinding head adopts high-precision frequency conversion speed regulation motorized spindle, power: 5 O kW, the maximum speed can reach 8000 rpm. It is cooled by circulating water. The rotation accuracy of grinding head spindle: end jump 0.002 mm and diameter jump 0.003 mm.

3. Machine tool guide rail: high precision needle roller guide rail is adopted, which significantly improves the rigidity, accuracy and durability of the machine tool

4. Servo mechanism: the control servo structure is adopted. Three linear feed axes (x-axis, Y-axis and Z-axis) and three rotating axes (c-axis, b-axis and a-axis) are controlled by servo motor, and four axis linkage can be done under the drive of application program. The grinding efficiency is improved and the grinding quality of the cutting edge is improved.

5. Grinding head reciprocating swing mechanism: the grinding head swings under the drive of servo motor. The swing frequency is 0-60 times / min, and the swing amplitude is freely adjusted between 0 and 120mm, so as to make the grinding wheel consume evenly and sharpen in time, so as to ensure the grinding accuracy and roughness. The mechanical swing, swing amplitude, swing frequency and swing position controlled by NC program can be set in the program.

6. Angle encoder: after detecting the tool, it can accurately restore the grinding position of the tool and avoid the disadvantage that the tool is not reset after multiple grinding. The angle resolution of the digital encoder is up to 1 ‘.

7. Lubrication system: the lubrication system adopts intermittent automatic lubrication system. The user can set the refueling time and refueling time interval to ensure the service life of the screw rod.

2、 Technological breakthrough

1. Grinding application software: the grinding software independently developed by our company can set grinding parameters such as tool angle, arc size and feed speed. After aligning the tool center, the machine tool can automatically grind high-precision tools by setting basic parameters through grinding software. All parameters of the machine tool are managed by the database system, which is called by the processing program name to facilitate the storage and search of the program. The software can display the tool image and the coordinates of the NC axis, and can generate a calibration line to display the center position of the rotation axis. At the same time, the software is responsible for the communication between the interface and the NC system. It can synthesize the grinding wheel parameters, tool parameters and processing parameters (such as feed rate, feed speed and residence time) of the software interface to generate the NC code (G code) and transmit it to the NC system to make the machine tool automatically complete the grinding. The software has four cycles for any combination: 1) middle edge grinding, 2) right edge grinding, 3) left edge grinding and 4) arc grinding. It can meet all the requirements of customers and minimize the time of grinding air.

2. Automatic dressing of grinding wheel: the automatic dressing device of grinding wheel is installed on the working feed shaft (Y-axis), which can automatically trim and clean the diamond grinding wheel driven by the servo motor.

3. On line measuring device: the contact measuring device is installed on the pneumatic folding support to avoid interference with the working grinding wheel. When measurement is needed, the tool after grinding is measured under the drive of the NC program. The difference between the actual measured value and the set value is the wear amount of the grinding wheel, which can be automatically compensated into the thickness value of the grinding wheel.