horizontal boring mills table type and...
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HORIZONTAL BORING MILLSTABLE TYPE AND TTYPE
Retrofit Echipari si Mentenanta SRLStr. Replubicii Nr. 199600304 Bacau, RomaniaT +40 234 206 010F +40 234 522 [email protected]
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GENERAL DESCRIPTIONThe TTHBM & THBM series table type and ttype horizontal boring mills are designed to process middle size prismatic workpieces made of cast iron, steel, aluminum or other materials. The workpieces can be machined by the same clamping on four or five surfaces by the following rough or finish operations: boring, drilling, milling, threading and counterboring.
The machine control is achieved for the following working axes:
TTHBM seriesX axis the rotary table cross displacementZ axis the rotary table longitudinal displacementB axis the table rotationY axis the headstock travel along the column guidewaysW axis the boring spindle axial displacement.
THBM seriesX axis the rotary table cross displacementZ axis the undercolumn saddle transversal displacementB axis the table rotationY axis the headstock travel along the column guidewaysW axis the boring spindle axial displacement.
Version: Manual with DRO (digital readout system) PTP (point to point) CNC
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TECHNICAL DETAILSHeadstockThe headstock is a heavily ribbed cast iron structure with counterweighs lined with antifriction material. It houses the belt driven cartridge spindle, 2ranges electrically shifted gearbox, spindle motor, rotary encoder for spindle orientation, tool clamping and Waxis drive system. The 2range gearbox and cartridge spindle are temperature stabilized by oil cooling.
ColumnThe column is made of special cast iron, internally ribbed. It is designed on a rectangular cross section shape and it has on its right side two prismatic guideways made of alloy steel plates, hardened and ground. The counterweight used for the balance of the headstock, is vertically displaceable inside of column, guided on two rails. The Y axis is driven via a large diameter preloaded ball screw with an AC servo motor. The Y axis feed mechanism is placed onto the column top. The guideways are protected by covers.
BedThe bed is designed as a special cast iron construction, internally ribbed, fixed on foundation by leveling blocks, and it is provided with two prismatic guide ways made of alloy steel plates, hardened and ground, protected by steel telescopic covers. The "Z" axis feed mechanism is placed onto the bed.
Electric equipment Electrical cabinet Control panel Measuring rotary encoders or linear scales for the travels of the movable elementsThe electric equipment on the machine includes: AC motors, electric wiring on the machine, connection boxes, actuators and control elements, encoders. The connecting cables between machine and cabinets are protected in flexible tubes, cable carriers and channels.
Specifications M.U.
Spindle
mm/in
Travels
mm/min.
diameter
spindle speed
taper
main motor power
in X axis
in Y axis
in Z axis
in W axis
Rapid feed
mm/min.
in X, Y, Z axes
W axes
Rotary table
Max. load
rpm
mm
to
kw
mm
mm
mm
mm
TTHBM105 (110, 115)
TTHBM125
TTHBM130 (150)
THBM130
THBM150
105 (110, 115)
5
22
ISO 50
10 3000
10000
2100
1625
1600
700
12
10000
125
30
ISO 50
10 3000
2500
1800
1800
800
20
130 (150)
37
ISO 50
5 3000
3000
2500
1800
1000
10000
20
130
37
ISO 50
5 3000
3000
2500
1500
1000
10000
40
150
45
ISO 50
5 3000
3500
3000
1500
1000
10000
6000
1220 x 1524
6000
1750 x 2000 2000 x 2500
6000
1750 x 2000
6000
2000 x 2500
6000
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Optional equipment Automatic tool changer 40 position Facing head Vertical milling head Universal milling head Stiffening device Angle fixtures Measuring system for all axes
Hydraulic and lubrication equipment Atos, Vickers, Rexroth, Willy Vogel
CNC ControlHeidenhein, Siemens, GE Fanuc
Rotary table The rotary table made of special cast iron is provided with "T" slots for the work piece clamping. The table is supported by an accurate roller bearing mounted on the cross slide. The table turning is achieved by an AC brushless electrical motor with continuously adjustable speed, through a teeth belt reducer and two pretensed pinions, with a backlashfree operation. The rotary table can be automatically index and could be locked in any posit ion hydraulically. The table rotation is measured and checked by an accurate rotary encoder.
CrossslideThe cross slide, of cast iron, has on its upper side circular guideways for the rotary table and its lower side has guideways. The cross slide also accommodates the mechanism for the table locking. The slide "X" axis displacement feed drive is done by an AC brushless electrical motor with continuously adjustable speed, through a ZF speed reducer and a ballscrew nut mechanism. The slide displacement is measured and checked by an accurate encoder.
The main spindleThe steel spindle shaft is nitrated, hardened and ground, supported by high accuracy bearings. The boring spindle "W" axis axial displacement feed drive is done by an AC brushless electrical motor with continuously adjustable speed, through a ZF speed reducer and a ballscrew nut mechanism. An accurate encoder, on the drive ball screw, measures and checks the main spindle rotation speed and the axial displacement.
SaddleThe saddle, of special cast iron, is has on its upper side prismatic guideways plated with hardened alloy steel plates, protected by steel telescopic covers. The lower sideways are plated with frictionfree materiall, with lubricating slots. The saddle "Z" axis longitudinal displacement feed drive is done by an AC brushless electrical motor with continuously adjustable speed, through a ZF speed reducer and a ballscrew nut mechanism between the two bed guideways. The saddle displacement measurement and check is achieved by accurate linear scale mounted onto the bed