What Are the Different Types of Portable Machine Tools?
The on-site machining machine tool is a machine tool installed on a part to process a part. Also called on-site processing equipment . Because of the earlier miniaturization of on-site machining machine tools, they were called portable machine tools ; because of their mobility, they were also called mobile machine tools .
On-site processing machine
Right!
- Chinese name
- On-site processing machine
- Foreign name
- The field processing machine
- nickname
- Portable machine tools, mobile machine tools
- Definition
- Machine tools mounted on parts for processing parts
- The on-site machining machine tool is a machine tool installed on a part to process a part. Also called on-site processing equipment . Because of the earlier miniaturization of on-site processing machine tools, they were called portable machine tools ; because of their mobility, they were also called mobile machine tools .
- Many large parts, due to their large size, weight, transportation or disassembly, cannot be mounted on ordinary machine tools for processing, and the machine needs to be mounted on the parts to process these parts.
- On-site machining machine tools cover most of the traditional machine tools, and there are also machine tools not in the traditional machine tool category.
- Such as on-site machining lathe , on-site machining milling machine , on-site machining drilling machine , on-site machining boring machine , on-site machining lathe , on-site machining boring and welding machine , on-site machining grinder, beveling machine, chamfering machine, valve grinding machine, etc.
- background:
- For many years, in the shipbuilding, offshore, power generation, steel smelting, petrochemical, mining, and engineering machinery industries, the manufacture and repair of many large-scale equipment rely on simple, bulky traditional equipment for processing, or rely entirely on manual polishing . Some large parts or equipment can no longer be installed on the machine for processing in the workshop, but need to be installed on the site with the processing machine on the part or equipment for processing. As a result, the people began to try to install machine tools on parts to process parts. In this way, on-site machining machine tools were gradually born.
- development path:
- l In the 1940s, steel ships began to develop toward large-scale and modernization. In the United States, Switzerland and other countries, the earliest machine tools transformed with traditional machine tools appeared to boring the mounting holes of ship propellers.
- l In the 1950s, during the construction of hydropower stations, countries such as the United States and Canada realized the on-site processing of some hydropower components by manufacturing special machine tools.
- l In the 1960s, the United States GE company manufactured the first dedicated on-site boring machine. Since then, Britain, Italy, Germany and other countries have successively manufactured dedicated on-site boring machines and on-site flange processing lathes.
- l In the 1970s, Shanghai Hudong Zhonghua Shipyard developed the first special boring row for ship's stern shaft boring. This special machine driven by belt or chain has been imitated by other shipyards in China.
- l In the 1990s, with the rapid development of China's hydropower construction, some large parts could not be manufactured and transported as a whole, and large flange lathes for field processing have appeared.
- The ordinary lathe is a machine tool that mainly uses a turning tool to turn a rotating workpiece. Ordinary lathes are mainly used for machining shafts, disks, sleeves and other workpieces with rotating surfaces. They are the most widely used machine tools in machinery manufacturing and repair plants.
1. 1. On-site machining lathe
- On-site machining lathes are also called portable lathes , or mobile lathes . The on-site machining lathe is a machine tool that is installed on the part to be processed and turns the part.
- This type of machine tool includes an inner-flange flange end lathe , an outer cassette flange end lathe , a shaft end lathe , an external lathe, and the like.
- External card flange end lathe
- On-site machining of flange end lathes has also become portable flange end lathes and mobile flange end lathes. On-site machining of the flange end lathe is used to process the flange end face, outer circle and inner hole on the part, and the stroke of the outer circle and inner hole is relatively limited. It can machine flange planes, bevels, bosses, grooves and more.
- Internally raised flange end lathe
- Portable flange end lathes include two types: internal flange end lathes and outer cassette flange end lathes.
- The outer card type flange end lathe is installed on the periphery or outer surface of the workpiece, and the inner rise type flange end lathe is installed on the inner wall of the inner hole of the workpiece.
- On-site machining of external lathes
- On-site machining of external lathes is commonly referred to as portable external lathes and mobile external lathes . The portable external lathe is installed on the outer circle of the workpiece, and the two ends of the disc are fixed to the outer circle of the workpiece by adjustable bolts. The two discs support the middle rotating part through the bearing, and the motor on one end of the disc drives the The intermediate rotating part rotates, and a knife arm and a knife holder are installed on the rotating part. The main rotary motion is converted into a feeding movement through a mechanical transmission, and a screw rod mounted on the knife arm drives the knife holder to move to achieve a cutting movement.
- Portable External Lathe
- On-site machining of shaft end lathes
- On-site machining of shaft end lathes, also known as portable shaft end lathes and mobile shaft end lathes. On-site machining of shaft end lathes is installed on the end face of the shaft and is used for machining the outer circle of parts.
- It can machine steps, grooves, tapers, chamfers and more on parts.
- The spindle is fixedly connected to the workpiece, the rotating body is connected to the spindle through a bearing, and the motor belt is mounted on the spindle
- On-site machining of shaft end lathes
2. On-site machining machine 2. On-site milling machine
- On-site milling machines are also called portable milling machines , or mobile milling machines .
- The on-site machining milling machine is a machine tool that is installed on the workpiece to be milled and planes the workpiece. It includes portable surface milling machine, portable keyway milling machine, portable gantry milling machine, portable welding seam milling machine, portable flange end milling machine, etc.
- Plane milling machine
- On-site machining face milling machine is also called portable face milling machine , mobile face milling machine
- The bed of the portable plane milling machine is directly installed on the surface of the workpiece. The slide on the bed can be moved longitudinally along the bed, and the slide on the slide can be moved laterally along the slide. The power head fixed on the slide plate drives the milling cutter to achieve cutting processing.
- Portable plane milling machine
- Portable plane milling machines are used to process rectangular planes on offshore platforms, marine diesel engine mounting surfaces, generator base planes, floating valve base planes, and maintenance of large large archways in steel plants.
- Keyway milling machine
- On-site machining of keyway milling machines, also known as portable keyway milling machines, mobile keyway milling machines
- Portable keyway milling machine
- The portable keyway milling machine uses a V-shaped surface under the guide rail to fix the machine to the workpiece with bolts or chains. The posts on the guide rail can be moved longitudinally along the guide rail, and the power head can be moved up and down along the vertical guide rail on the post. Eat a knife. The power head drives the milling cutter to rotate to realize cutting.
- Milling machine
- On-site machining of gantry milling machine is also called portable gantry milling machine, mobile gantry milling machine
- The portable gantry milling machine has a double-rail support beam. The beam can be moved longitudinally along the double guide rails, and the power head mounted on the slide table can be moved laterally along the guide rails on the beam. The power head drives the milling cutter to rotate to achieve cutting processing.
- Portable gantry milling machine
- The portable gantry milling machine is mainly used for processing rectangular planes on offshore platforms, planes of ship gun bases, maintenance of large machine planes in steel plants, and so on.
- Welding seam milling machine
- On-site welding seam milling machine is also called portable seam milling machine, mobile seam milling machine
- The portable welding seam milling machine uses magnets or other methods to fix the machine to the machined parts at the bottom of the two ends. The slide table can be moved laterally along the beam. The power head mounted on the slide table drives the milling cutter to rotate to achieve cutting.
- Portable Welding Mill
- Portable seam milling machines are used to process cut craft residues or leftover welds on ship decks.
- Flange Face Milling Machine
- On-site machining flange face milling machine is also called portable flange face milling machine, mobile flange face milling machine
- The chassis of the portable flange end milling machine is connected to the workpiece through legs or other mounting supports. The base has a fixed shaft. The inner end of the beam is sleeved on the fixed shaft through a bearing. The outer end is placed on the flange surface. . The fixed shaft plays a centering role. The outer end is equipped with a power head, a traction mechanism and an up-and-down floating mechanism.
- The power head drives the milling cutter to rotate, the traction mechanism drives the beam to rotate along the flange surface, and the up and down floating mechanism drives the power head to move up and down.
- A photoelectric detection element is installed between the central fixed shaft and the power head. The photoelectric detection element transmits the up-and-down floating data during the movement of the power head along the flange surface to the central controller. The central controller controls the power head through the up-and-down floating mechanism. The flange surface is moved in the opposite direction, so that the milling cutter stays in the same plane when it makes a circular motion along the flange surface.
3. On-site processing machine 3. On-site processing drilling machine
- Magnetic drill
- An electromagnetic chuck is installed at the bottom of the machine tool, an automatic feed mechanism and a rotation mechanism are installed on the drilling machine column, and a solid drill or a hollow (core) drill is installed in the spindle hole.
- Magnetic drill
- Bolt type drilling machine
- Where the machining hole diameter is large or it is not convenient to connect with a magnetic chuck, bolts are used to fix the drilling machine on the machined part.
4. On-site processing machine 4. On-site processing boring machine
- A common boring machine is a machine tool that uses a rotating spindle to boring holes and end faces on a workpiece mounted on a worktable. The boring machine is mainly used for boring of holes of box parts.
- On-site machining boring machines are also called portable boring machines, portable boring machines or mobile boring machines .
- Generally, the small on-site machining boring machine for cantilever boring is called a portable reamer, and the on-site machining boring machine supported at both ends is called a portable boring machine.
- Portable Reaming Machine
- On-site processing reamers are also called portable reamers and mobile reamers .
- On-site reaming machines are generally driven by the main shaft to rotate the main shaft, and a feed box installed at the tail end of the main shaft drives the main shaft to feed and realize cutting motion.
- Portable Reaming Machine
- The machine is connected to the workpiece by bolts at the bottom or end. The horizontal reamer is connected through the bottom, and the vertical reamer is connected through the end; the bottom and the end can be connected, which is called the vertical and horizontal reamer.
- Portable boring machine
- On-site processing boring machines are also called portable boring machines , or mobile boring machines .
- Generally, the end support bearing is installed at the two ends of the hole with a connection support. When the hole system is longer, an intermediate support bearing is installed between the two end bearings. The main shaft (also called boring bar) is installed in the bearing, and the headstock can be installed in any position. The feed box is mounted on one end of the spindle. A groove is formed on one side of the main shaft, and a driving screw is installed in the groove. The tool holder for boring is installed on the main shaft (boring rod), the feed box drives the screw rod to rotate, and drives the tool holder to move along the boring rod. When the spindle box drives the boring bar to rotate, the tool holder drives the boring tool to achieve cutting motion.
- Portable boring machine
- The end cutter arm is fixed outside the end surface to be processed and rotates with the boring bar. The tool holder mounted on the end arm can move along the arm, thereby driving the boring tool to move along the end surface to achieve cutting processing.
5. On-site processing machine 5. On-site processing lathe and boring machine
- There is no car boring machine in the traditional machine tool classification.
- The on-site machining lathe and boring machine is a machine tool that is installed on the part and can realize both turning and boring. Also known as car-boring machine.
- In 2008, Guangzhou Xincheng Machinery Technology Co., Ltd. and Beijing Academy of Armored Forces Engineering jointly developed a dual-purpose machine tool for the on-site repair of armored axle parts and holes.
- In the hydropower industry, many large parts need to be processed on-site. For many years, a machine tool for rotary machining has been called a rotary machining facility. A machine tool for seat ring processing is called seat ring processing equipment.
- In 2009, Guangzhou Xincheng Machinery Technology Co., Ltd. independently developed a multifunctional machining machine for large-scale parts processing. This machine can be used for both turning and seat ring processing . It can also realize the processing of the top cover, the leakage ring , and the processing of parts such as the lower bracket .
- This machine tool has been widely used in Lijiang Ahai Power Station, Guanyinyan Power Station, Hunan Tokou Power Station, Vietnam Songla Power Station, Xiangjiaba Power Station, etc., which has changed the situation of using special machine tools in the past.
- Integrated turning and boring machine
- The integrated turning and boring machine tool is a machine tool that uses the same machine tool to achieve turning and boring through two different installation methods.
- Integrated turning and boring machine
- The main body of the integrated dual-purpose machine tool is composed of a box body and a main shaft. When the box is fixed on the workpiece, the main shaft rotates to realize boring processing; when the main shaft is fixed to the workpiece, the box rotates to realize turning processing.
- Integrated turning and boring machine
- Large split dual-purpose machine for turning and boring
- The large-scale split car-boring dual-purpose machine tool is composed of a main shaft, a support bearing, a swing arm, a slide table and the like. When the swing arm is installed outside the two bearings, turning is realized; when the swing arm is installed between the two bearings, boring is realized.
- Each bearing connects the machine to the work piece via a connector. The main shaft is mounted in a bearing. The headstock is mounted on one end of the spindle.
- When turning, mount the boom on the outer end of the bearing. The main arm includes a transverse arm and a trailing arm. The transverse arm is used for machining the end face, and the trailing arm is used for machining the outer circle. A slide table is installed on the guide rails on the cross arm and the trailing arm. The knife holder on the slide table can be moved along the knife arm along with the slide table, and the knife holder can also be moved vertically along the guide seat on the slide table. The headstock box drives the spindle to rotate to achieve cutting .
- When the machine tool is equipped with a numerical control system, parts of arbitrary shapes can be processed to realize the numerical control processing of the parts.
- When performing boring , install the swing arm in the middle of the bearing. The swing arm can move axially along the main shaft. The slide table installed on the boom guide can move radially along the guide seat. The headstock box drives the main shaft and the rotary arm to rotate to realize cutting.
6. On-site processing machine 6. On-site processing boring and welding machine
- On-site processing boring and welding machine is referred to as boring and welding machine . It is a machine tool for welding and boring the inner hole of the workpiece to be processed on site.
- When this machine tool is used for boring, the machine structure domain is the same as the boring machine. When the machine tool is used for welding, replace the boring bar with a welding bar. The welded rod has a hollow structure. The welding line passes through the welding rod and protrudes from the front end of the welding rod. A welding nozzle installed at the front end of the welding rod welds the inner hole of the workpiece.