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TOS WHN110 WHN130 Horizontal Boring Machine
Discover the TOS WHN110/WHN130 horizontal boring mill: heavy-duty CNC precision machining, large boring capacity, high spindle speeds for industrial metalworking. Robust build ensures accuracy in manufacturing. Visit Fortune Pacific for full specs now.
- TOS WHN110 WHN130 Horizontal Milling Boring MachineDownload
Parameters of TOS WHN110 WHN125 WHN130 WHN140 Horizontal Milling and Boring Machine
Technical parameters of TOS WHN110 WHN125 WHN130 WHN140 Horizontal Milling and Boring Machine tool magazine
Optional equipments
1. Manual universal milling head: HUR50 (A);
2. Universal milling head: HUI50 (A) (for WHN130 & WHN140);
3. Manual vertical milling head: HPR50 (A);
4. Facing head: LD650: (for WHN110 & WHN130);
5. Clamping angle plate;
6. Clamping cube;
7. Chip conveyor;
8. Tool cooling unit;
9. Tool cooling unit;
Horizontal boring machine or horizontal boring mill is a machine tool which bores holes in a horizontal direction. There are three main types — table, planer and floor. The table type is the most common type, as it is the most versatile, it is also known as the universal type.
A horizontal boring machine has its work spindle parallel to the ground and work table. Typically there are three linear axes in which the tool head and part move. Convention dictates that the main axis that drives the part towards the work spindle is the Z axis, with a cross-traversing X axis and a vertically traversing Y axis. The work spindle is referred to as the C axis and, if a rotary table is incorporated, its centre line is the B axis.
A horizontal boring machine or horizontal boring mill is a machine tool which bores holes in a horizontal direction. There are three main types - table, planer and floor.
A horizontal boring machine has its work spindle parallel to the ground and work table. Typically there are three linear axes in which the tool head and part move. Convention dictates that the main axis that drives the part towards the work spindle is the Z axis, with a cross-traversing X axis and a vertically traversing Y axis. The work spindle is referred to as the C axis and, if a rotary table is incorporated, its centre line is the B axis.
Horizontal boring machines are often heavy-duty industrial machines used for roughing out large components, but there are high-precision models too. Modern machines use advanced computer numerical control (CNC) systems and techniques.
Boring Machines
Boring operations can be performed on other than boring machines, such as lathes, milling machines and machining centers. Boring machines, like most other machine tools, can be classified as horizontal or vertical.
Horizontal Boring Machines is made to handle medium to very large-sized parts, but these parts are usually somewhat rectangular in shape, though they may be asymmetrical or irregular. The available cutting tools only limit the size of cut, the rigidity of the spindle, and the available horsepower.
The table-type is built on the same principles as the horizontal-spindle milling machines. The base and column are fastened together, and the column does not move. The tables are heavy, ribbed castings which may hold loads up to 20,000 pounds.
Size of Horizontal Boring Machines: The basic size of an Horizontal Boring Machines is the diameter of the spindle. Table-type machines usually have spindles from 3 to 6 in. diameter. The larger sizes will transmit more power and, equally important, the spindle will not sag or deflect as much when using a heavy cutting tool while extended. The size is further specified by the size of the table. Although each machine has a "standard" size table, special sizes may be ordered. The principal parts of the horizontal boring machine are shown below.
Workholding: Workholding is with clamps, bolts or fixtures, the same as with other machines. Rotary tables allow machining of all four faces of a rectangular part or various angle cuts on any shape of part. Rotary tables up to 72-in. square or round are used for large work. If large, rather flat work is to be machined, an angle plate is used. The workpiece is bolted or clamped onto the angle plate so that the "flat" face is toward the spindle.
Cutting tools: Cutting tools are held in the rotating spindle by a tapered hole and a drawbar. To speed up the process of tool changing, either or both of two things are done:
• The drawbar (which pulls the tapered tool holder tightly into the spindle hole) can be power operated. Thus, the holder is pulled tight or ejected very quickly.
• Quick-change tooling is used. A basic holder is secured in the spindle. It has a taper into which tools may be secured by a quarter to half turn of the locking collar. Thus, the operator can change preset tools in 10 to 30 seconds.
Speeds and feeds: Speeds and feeds cover a wide range because of the wide variety of cutters that may be used on the Horizontal Boring Machines. Speeds from 15 to 1500 RPM and feed rates from 0.1 to 40 IPM are commonly used.
Features
1. Controlled by SIEMENS 840D (FANUC 31i or HEIDENHAIN iTNC 530) with arbitrary four-axis linkage and rough and finish machining. Equipped with magazines of different pockets to realize drilling, boring, milling, reaming, rigid tapping, circular grooving and treading cutting, etc. Rotary tables with various workpiece weights are optional, which are capable of accurate positioning, multi-dimensional machining and excellent turnover boring.
2. The cross bed and column bed are connected in T-form with screws. The slide carriage of the worktable travels along the X-axis and column (Z-axis) longitudinally along the column bed. The headstock (Y-axis) travels vertically along the column. The rotary table is fixed on the slide carriage and rotates around B-axis while the spindle moves parallel (W-axis) to Z-axis. Gray iron castings can hold high bending stress and realize excellent rigidity.
3. The rotary table adopts large gear rings and a couple of pinions with preloaded torque to eliminate backlash, thus guarantees a high rotary accuracy. For the drive in X, Y, Z and W axes, the motors are connected to ballscrew after speed reduction by means of synchronous toothed pulleys.
4. Entirely closed-loop detecting system is applied in X, Y, Z and B axes with linear and circular grating. Half closed-loop detecting is carries out in W and U axes.
5. Compound slide guideways consisting of rollers and paste hardened plastic guide set in X, Y and Z axes. All exposed guideways are equipped with telescopic covers while organ-type enclosure is adopted in Y axis.
6. Tools are clamped by a disc spring and released by hydraulic power to ensure a convenient process for tool change. The supporting mechanism of the spindle is well designed featuring excellent rigidity. The headstock is balanced through counterweight and adopts eccentric anti-vibration mechanism as the column moves vertically. All feed shafts can be locked by CNC system except that in B axis hydraulic clamping mechanism is applied.
| Main parameters | Unit | WHN110 | WHN125 | WHN130 | WHN140 |
|---|---|---|---|---|---|
| CNC system | SIEMENS 840D; FANUC 31i; HEIDENHAIN iTNC 530 | ||||
| Spindle diameter | mm | 112 (4.4”) | 125 (4.9”) | 130 (5.1”) | 140 (5.5”) |
| Spindle taper | ISO50 (7:24) | ||||
| Tool pullstud | mm | 25mm (0.98”) extended on DIN 69872 | |||
| Spindle speed | r/min | 10-2800 | 10-3300 | 10-2500 | 10-3000 |
| Max. spindle torque | Nm | 2110 | 1457 | 2350 | 1622 |
| Max. workpiece weight | kg | 8000 | 12000 | ||
| Rotary table size | mm | 1250x1400; 1400x1600 (49x55; 55x63”) |
1600x1800; 1800x2240 (63x71; 71x88”) |
||
| T slot (width x No. x pitch) | mm | 22x9x160 | 22x9x160; 28x10x160 | ||
| Table travel (X) | mm | 1600; 2000; 2500 (63; 79; 98”) |
2000; 2500; 3000; 3500; 4000 (79; 98; 118; 138”) |
||
| Headstock travel (Y) | mm | 1250; 1400; 1600; 2000 (49; 55; 63; 79”) |
1600; 2000; 2500 (63; 79; 98”) |
||
| Column travel (Z) | mm | 800; 1000; 1250; 1600 (32; 39; 49; 63”) |
1000; 1250; 1600; 2000 (39; 49; 63; 79”) |
||
| Spindle travel (W) | mm | 710 (28”) | 500 (20”) | 800 (32”) | 560 (22”) |
| Min. distance of spindle axis above table | mm | 50 (2”) | |||
| Feed range of X, Y, Z and W | mm/min | 1-6000 | |||
| Feed range of B | r/min | 0.03-1.5 | |||
| Rapid traverse of X, Y, Z and W | mm/min | 10000 | |||
| Rapid traverse of B | r/min | 2.5 | 2 | ||
| Total power consumption | kVA | 83kVA (3ph, 380V, 50Hz) | |||
| Spindle motor power | kW | 37 | |||
| Tool magazine capacity | 40; 60; 80; 90 | |
|---|---|---|
| Pitch of pocket | mm | 130 (5.1”) |
| Max. tool diameter / whole tool magazine | mm | 125 / 150 (4.9 / 5.9”) |
| Gap between adjacent pocket | mm | 250 (9.8”) |
| Max. diameter of special flat tools | mm | 390 (15”) |
| Max. tool length | mm | 400 (16”) |
| Max. tool weight | kg | 25 |
| Average tool weight | kg | 15 |
| Max. unbalance loading | kg | 80 |
| Total tool change time | sec | 20 |
Optional equipments
1. Manual universal milling head: HUR50 (A);
2. Universal milling head: HUI50 (A) (for WHN130 & WHN140);
3. Manual vertical milling head: HPR50 (A);
4. Facing head: LD650: (for WHN110 & WHN130);
5. Clamping angle plate;
6. Clamping cube;
7. Chip conveyor;
8. Tool cooling unit;
9. Tool cooling unit;
10. CNC Rotary table;
Usages
Horizontal Boring Machine is a universat one in that they can complete a variety of machining on castings, steel parts, and parts made of non-ferrous metals, for example, drilling, enlarging, boring and reaming holes, milling planes, facing spots and cutting threads. The slide of face plate of this machine can feed in a radial direction thus enlarge the dimension of boring, turning and groovingUsages
Horizontal boring machine or horizontal boring mill is a machine tool which bores holes in a horizontal direction. There are three main types — table, planer and floor. The table type is the most common type, as it is the most versatile, it is also known as the universal type.
A horizontal boring machine has its work spindle parallel to the ground and work table. Typically there are three linear axes in which the tool head and part move. Convention dictates that the main axis that drives the part towards the work spindle is the Z axis, with a cross-traversing X axis and a vertically traversing Y axis. The work spindle is referred to as the C axis and, if a rotary table is incorporated, its centre line is the B axis.
A horizontal boring machine or horizontal boring mill is a machine tool which bores holes in a horizontal direction. There are three main types - table, planer and floor.
A horizontal boring machine has its work spindle parallel to the ground and work table. Typically there are three linear axes in which the tool head and part move. Convention dictates that the main axis that drives the part towards the work spindle is the Z axis, with a cross-traversing X axis and a vertically traversing Y axis. The work spindle is referred to as the C axis and, if a rotary table is incorporated, its centre line is the B axis.
Horizontal boring machines are often heavy-duty industrial machines used for roughing out large components, but there are high-precision models too. Modern machines use advanced computer numerical control (CNC) systems and techniques.
Boring Machines
Boring operations can be performed on other than boring machines, such as lathes, milling machines and machining centers. Boring machines, like most other machine tools, can be classified as horizontal or vertical.
Horizontal Boring Machines is made to handle medium to very large-sized parts, but these parts are usually somewhat rectangular in shape, though they may be asymmetrical or irregular. The available cutting tools only limit the size of cut, the rigidity of the spindle, and the available horsepower.
The table-type is built on the same principles as the horizontal-spindle milling machines. The base and column are fastened together, and the column does not move. The tables are heavy, ribbed castings which may hold loads up to 20,000 pounds.
Size of Horizontal Boring Machines: The basic size of an Horizontal Boring Machines is the diameter of the spindle. Table-type machines usually have spindles from 3 to 6 in. diameter. The larger sizes will transmit more power and, equally important, the spindle will not sag or deflect as much when using a heavy cutting tool while extended. The size is further specified by the size of the table. Although each machine has a "standard" size table, special sizes may be ordered. The principal parts of the horizontal boring machine are shown below.
Workholding: Workholding is with clamps, bolts or fixtures, the same as with other machines. Rotary tables allow machining of all four faces of a rectangular part or various angle cuts on any shape of part. Rotary tables up to 72-in. square or round are used for large work. If large, rather flat work is to be machined, an angle plate is used. The workpiece is bolted or clamped onto the angle plate so that the "flat" face is toward the spindle.
Cutting tools: Cutting tools are held in the rotating spindle by a tapered hole and a drawbar. To speed up the process of tool changing, either or both of two things are done:
• The drawbar (which pulls the tapered tool holder tightly into the spindle hole) can be power operated. Thus, the holder is pulled tight or ejected very quickly.
• Quick-change tooling is used. A basic holder is secured in the spindle. It has a taper into which tools may be secured by a quarter to half turn of the locking collar. Thus, the operator can change preset tools in 10 to 30 seconds.
Speeds and feeds: Speeds and feeds cover a wide range because of the wide variety of cutters that may be used on the Horizontal Boring Machines. Speeds from 15 to 1500 RPM and feed rates from 0.1 to 40 IPM are commonly used.
Features
1. Controlled by SIEMENS 840D (FANUC 31i or HEIDENHAIN iTNC 530) with arbitrary four-axis linkage and rough and finish machining. Equipped with magazines of different pockets to realize drilling, boring, milling, reaming, rigid tapping, circular grooving and treading cutting, etc. Rotary tables with various workpiece weights are optional, which are capable of accurate positioning, multi-dimensional machining and excellent turnover boring.
2. The cross bed and column bed are connected in T-form with screws. The slide carriage of the worktable travels along the X-axis and column (Z-axis) longitudinally along the column bed. The headstock (Y-axis) travels vertically along the column. The rotary table is fixed on the slide carriage and rotates around B-axis while the spindle moves parallel (W-axis) to Z-axis. Gray iron castings can hold high bending stress and realize excellent rigidity.
3. The rotary table adopts large gear rings and a couple of pinions with preloaded torque to eliminate backlash, thus guarantees a high rotary accuracy. For the drive in X, Y, Z and W axes, the motors are connected to ballscrew after speed reduction by means of synchronous toothed pulleys.
4. Entirely closed-loop detecting system is applied in X, Y, Z and B axes with linear and circular grating. Half closed-loop detecting is carries out in W and U axes.
5. Compound slide guideways consisting of rollers and paste hardened plastic guide set in X, Y and Z axes. All exposed guideways are equipped with telescopic covers while organ-type enclosure is adopted in Y axis.
6. Tools are clamped by a disc spring and released by hydraulic power to ensure a convenient process for tool change. The supporting mechanism of the spindle is well designed featuring excellent rigidity. The headstock is balanced through counterweight and adopts eccentric anti-vibration mechanism as the column moves vertically. All feed shafts can be locked by CNC system except that in B axis hydraulic clamping mechanism is applied.
Features
1. Controlled by SIEMENS 840D (FANUC 31i or HEIDENHAIN iTNC 530) with arbitrary four-axis linkage and rough and finish machining. Equipped with magazines of different pockets to realize drilling, boring, milling, reaming, rigid tapping, circular grooving and treading cutting, etc. Rotary tables with various workpiece weights are optional, which are capable of accurate positioning, multi-dimensional machining and excellent turnover boring.
2. The cross bed and column bed are connected in T-form with screws. The slide carriage of the worktable travels along the X-axis and column (Z-axis) longitudinally along the column bed. The headstock (Y-axis) travels vertically along the column. The rotary table is fixed on the slide carriage and rotates around B-axis while the spindle moves parallel (W-axis) to Z-axis. Gray iron castings can hold high bending stress and realize excellent rigidity.
3. The rotary table adopts large gear rings and a couple of pinions with preloaded torque to eliminate backlash, thus guarantees a high rotary accuracy. For the drive in X, Y, Z and W axes, the motors are connected to ballscrew after speed reduction by means of synchronous toothed pulleys.
4. Entirely closed-loop detecting system is applied in X, Y, Z and B axes with linear and circular grating. Half closed-loop detecting is carries out in W and U axes.
5. Compound slide guideways consisting of rollers and paste hardened plastic guide set in X, Y and Z axes. All exposed guideways are equipped with telescopic covers while organ-type enclosure is adopted in Y axis.
6. Tools are clamped by a disc spring and released by hydraulic power to ensure a convenient process for tool change. The supporting mechanism of the spindle is well designed featuring excellent rigidity. The headstock is balanced through counterweight and adopts eccentric anti-vibration mechanism as the column moves vertically. All feed shafts can be locked by CNC system except that in B axis hydraulic clamping mechanism is applied.
1. Controlled by SIEMENS 840D (FANUC 31i or HEIDENHAIN iTNC 530) with arbitrary four-axis linkage and rough and finish machining. Equipped with magazines of different pockets to realize drilling, boring, milling, reaming, rigid tapping, circular grooving and treading cutting, etc. Rotary tables with various workpiece weights are optional, which are capable of accurate positioning, multi-dimensional machining and excellent turnover boring.
2. The cross bed and column bed are connected in T-form with screws. The slide carriage of the worktable travels along the X-axis and column (Z-axis) longitudinally along the column bed. The headstock (Y-axis) travels vertically along the column. The rotary table is fixed on the slide carriage and rotates around B-axis while the spindle moves parallel (W-axis) to Z-axis. Gray iron castings can hold high bending stress and realize excellent rigidity.
3. The rotary table adopts large gear rings and a couple of pinions with preloaded torque to eliminate backlash, thus guarantees a high rotary accuracy. For the drive in X, Y, Z and W axes, the motors are connected to ballscrew after speed reduction by means of synchronous toothed pulleys.
4. Entirely closed-loop detecting system is applied in X, Y, Z and B axes with linear and circular grating. Half closed-loop detecting is carries out in W and U axes.
5. Compound slide guideways consisting of rollers and paste hardened plastic guide set in X, Y and Z axes. All exposed guideways are equipped with telescopic covers while organ-type enclosure is adopted in Y axis.
6. Tools are clamped by a disc spring and released by hydraulic power to ensure a convenient process for tool change. The supporting mechanism of the spindle is well designed featuring excellent rigidity. The headstock is balanced through counterweight and adopts eccentric anti-vibration mechanism as the column moves vertically. All feed shafts can be locked by CNC system except that in B axis hydraulic clamping mechanism is applied.
Discover top-tier machining precision with the TOS WHN110-WHN130 Horizontal Boring Mill, a heavy-duty HBM machine engineered for large-part manufacturing. This robust floor type boring machine features a rigid box-in-box column design, high-torque spindle with precise quill feed, and a large rotary table with heavy load capacity. Essential for energy sector components, shipbuilding blocks, and mold base machining, its key strengths include exceptional positioning accuracy (±0.004mm), superior surface finish capabilities, and thermal stability for prolonged operations. Operators value its efficient chip evacuation system, user-friendly CNC interface (Siemens/Fanuc options), and minimal vibration during deep boring or heavy milling cuts. Critical components like the hardened and ground slideways, centralized lubrication, and rigid milling head ensure long-term reliability for demanding industrial boring and milling applications. Upgrade your production line with this high-accuracy boring solution known for rigidity and productivity. Ищете надежный горизонтально-расточной станок для сложных задач? Станок TOS WHN110-WHN130 — это промышленный координатно-расточной станок (портал типа) с ЧПУ для обработки крупногабаритных деталей. Конструкция "коробка в коробке" обеспечивает исключительную жесткость станины и стойки. Мощный шпиндель с плавной подачей пиноли и большой поворотный стол выдерживают значительные нагрузки. Ключевые применения: расточка корпусов редукторов, фрезерные работы на деталях энергетического оборудования, обработка станин и матриц. Преимущества: высокая точность позиционирования (±0.004 мм), минимальные вибрации при глубоком сверлении и торцевом фрезеровании, долговечные закаленные направляющие, система централизованной смазки. Станок оснащен современной системой ЧПУ (Siemens/Fanuc) для программирования сложных операций растачивания и контурного фрезерования. Это решение для точной обработки отверстий, пазов и плоскостей на ответственных деталях. Incremente su capacidad de mecanizado pesado con la mandrinadora horizontal TOS WHN110-WHN130, una fresadora-taladradora de piso robusta diseñada para piezas de gran tamaño. Este centro de mecanizado horizontal cuenta con una estructura tipo "caja dentro de caja" para máxima rigidez, un husillo de alta potencia con avance preciso de la manga y una mesa giratoria de gran capacidad. Ideal para el sector energético (componentes de turbinas), construcción naval y fabricación de moldes de precisión. Sus ventajas clave incluyen: repetibilidad excepcional (±0.004mm), acabados superficiales de alta calidad, estabilidad térmica para trabajos prolongados y un sistema eficiente de evacuación de viruta. Componentes críticos como las guías templadas y rectificadas, la lubricación centralizada y la sólida cabezal fresador garantizan confiabilidad en operaciones intensivas de mandrinado profundo y fresado pesado. Una solución de maquinado vertical-horizontal para alta productividade. Potencialize sua oficina com a Furadeira Horizontal TOS WHN110-WHN130, uma mandrilhadeira de coluna robusta para usinagem de peças de grande porte e alta precisão. Esta fresadora-furadeira horizontal tipo piso possui estrutura rígida "box-in-box", mesa giratória de alta capacidade e eixo principal com avanço preciso da luneta. Essencial para fabricação de componentes pesados (setor energético, naval, moldes), destaca-se pela precisão de posicionamento (±0.004mm), acabamento superficial superior e estabilidade térmica durante longas operações de mandrilamento ou fresagem pesada. Componentes vitais como guias endurecidas e retificadas, lubrificação centralizada e cabeçote de fresar robusto garantem confiabilidade e vida longa. Oferece eficiência com sistema de remoção de cavacos e interface CNC amigável (Siemens/Fanuc), sendo uma solução completa para furação profunda, alargamento e operações complexas de usinagem vertical-horizontal. Tingkatkan presisi pengerjaan logam berat dengan Mesin Bor Horizontal TOS WHN110-WHN130, solusi machining bubut-frais lantai untuk benda kerja besar. Mesin HBM (Horizontal Boring Mill) tipe lantai ini memiliki konstruksi kolom "box-in-box" sangat kaku, spindle bertenaga tinggi dengan gerak bor presisi, dan meja putar kapasitas berat. Penting untuk komponen energi (turbin, gearbox), fabrikasi kapal, dan pembuatan mold presisi. Keunggulan utama: akurasi posisi ±0.004mm, hasil permukaan halus, stabilitas termal untuk operasi panjang, dan sistem pembuangan tatal efisien. Komponen kunci seperti rel geser dikeraskan, pelumasan terpusat, dan kepala fris kaku menjamin keandalan dalam operasi pengeboran dalam atau fris face berat. Dilengkapi antarmuka CNC (Siemens/Fanuc) user-friendly untuk pemrograman operasi kompleks boring dan milling, solusi ideal untuk kebutuhan machining presisi industri logam. به دنبال دستگاهی برای سوراخکاری و فرزکاری دقیق قطعات سنگین هستید؟ دستگاه سوراخ افقی TOS WHN110-WHN130 یک ماشینکاری سنگین افقی (Horizontal Boring Mill - HBM) از نوع کفساب با ساختار مستحکم "جعبه در جعبه" برای دقت بالا و لرزش کم است. این فرز-سوراخ افقی صنعتی مجهز به اسپیندل پرقدرت با مکانیزم پیشروی دقیق، میز گردان با ظرفیت بارگذاری بالا و سیستم کنترل عددی (CNC - Siemens/Fanuc) است. کاربردهای کلیدی: ماشینکاری قطعات انرژی (توربین، گیربکس)، قالبسازی دقیق، ساخت کشتی و قطعات سنگین. مزایا: دقت موقعیتیابی استثنایی (±۰.۰۰۴ میلیمتر)، پرداخت سطح عالی، پایداری حرارتی برای کارهای طولانیمدت، سیستم تخلیه براده کارآمد و طراحی ضدلرزش. اجزای حیاتی مانند راهگاههای سختکاری شده، سیستم روغنکاری مرکزی و هد فرز مستحکم، قابلیت اطمینان را در سوراخکاری عمیق و فرزکاری سنگین تضمین میکنند. راهحلی ایدهآل برای سوراخکاری دقیق، فرزکاری سطوح و عملیات پیچیده ماشینکاری با دقت بالا و بهرهوری عالی.
Usages
Horizontal Boring Machine is a universat one in that they can complete a variety of machining on castings, steel parts, and parts made of non-ferrous metals, for example, drilling, enlarging, boring and reaming holes, milling planes, facing spots and cutting threads. The slide of face plate of this machine can feed in a radial direction thus enlarge the dimension of boring, turning and groovingHorizontal boring machine or horizontal boring mill is a machine tool which bores holes in a horizontal direction. There are three main types — table, planer and floor. The table type is the most common type, as it is the most versatile, it is also known as the universal type.
A horizontal boring machine has its work spindle parallel to the ground and work table. Typically there are three linear axes in which the tool head and part move. Convention dictates that the main axis that drives the part towards the work spindle is the Z axis, with a cross-traversing X axis and a vertically traversing Y axis. The work spindle is referred to as the C axis and, if a rotary table is incorporated, its centre line is the B axis.
A horizontal boring machine or horizontal boring mill is a machine tool which bores holes in a horizontal direction. There are three main types - table, planer and floor.
A horizontal boring machine has its work spindle parallel to the ground and work table. Typically there are three linear axes in which the tool head and part move. Convention dictates that the main axis that drives the part towards the work spindle is the Z axis, with a cross-traversing X axis and a vertically traversing Y axis. The work spindle is referred to as the C axis and, if a rotary table is incorporated, its centre line is the B axis.
Horizontal boring machines are often heavy-duty industrial machines used for roughing out large components, but there are high-precision models too. Modern machines use advanced computer numerical control (CNC) systems and techniques.
Boring Machines
Boring operations can be performed on other than boring machines, such as lathes, milling machines and machining centers. Boring machines, like most other machine tools, can be classified as horizontal or vertical.
Horizontal Boring Machines is made to handle medium to very large-sized parts, but these parts are usually somewhat rectangular in shape, though they may be asymmetrical or irregular. The available cutting tools only limit the size of cut, the rigidity of the spindle, and the available horsepower.
The table-type is built on the same principles as the horizontal-spindle milling machines. The base and column are fastened together, and the column does not move. The tables are heavy, ribbed castings which may hold loads up to 20,000 pounds.
Size of Horizontal Boring Machines: The basic size of an Horizontal Boring Machines is the diameter of the spindle. Table-type machines usually have spindles from 3 to 6 in. diameter. The larger sizes will transmit more power and, equally important, the spindle will not sag or deflect as much when using a heavy cutting tool while extended. The size is further specified by the size of the table. Although each machine has a "standard" size table, special sizes may be ordered. The principal parts of the horizontal boring machine are shown below.
Workholding: Workholding is with clamps, bolts or fixtures, the same as with other machines. Rotary tables allow machining of all four faces of a rectangular part or various angle cuts on any shape of part. Rotary tables up to 72-in. square or round are used for large work. If large, rather flat work is to be machined, an angle plate is used. The workpiece is bolted or clamped onto the angle plate so that the "flat" face is toward the spindle.
Cutting tools: Cutting tools are held in the rotating spindle by a tapered hole and a drawbar. To speed up the process of tool changing, either or both of two things are done:
• The drawbar (which pulls the tapered tool holder tightly into the spindle hole) can be power operated. Thus, the holder is pulled tight or ejected very quickly.
• Quick-change tooling is used. A basic holder is secured in the spindle. It has a taper into which tools may be secured by a quarter to half turn of the locking collar. Thus, the operator can change preset tools in 10 to 30 seconds.
Speeds and feeds: Speeds and feeds cover a wide range because of the wide variety of cutters that may be used on the Horizontal Boring Machines. Speeds from 15 to 1500 RPM and feed rates from 0.1 to 40 IPM are commonly used.
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