Present situation analysis and development of drilling rig (at home and abroad) (high score)
Let me give you a brief analysis first:
No. 1
Development of deep hole drilling machine;
Widely used in China's textile machinery, petroleum machinery, printing machinery, packaging machinery, medical equipment, aerospace, automobile tractors, rubber and plastic molds, generator manufacturing, machine tool manufacturing and other industries, the deep hole processing of related parts has been applied.
Basically, it can be divided into three categories:
(1) common single-coordinate deep hole drilling machine.
In China, in 1989, Dezhou Machine Tool Works, the predecessor of our company, designed and manufactured the Z2 102 deep-hole drilling machine with the maximum drilling diameter of 20mm and the maximum processing depth of 500mm and 1000mm, which was the first gun drill deep-hole drilling machine in China and passed the ministerial appraisal of the former Ministry of Machinery Industry in 1990. It filled the domestic blank, and it was put into market production only after half a year, and it was gradually put into market after batch testing by users. Up to now, the annual output value of our company's deep-hole drilling machine products alone has reached10 million yuan. This product is developed from Z2 102 controlled by common relay and ZP2 102 controlled by programmable controller to ZK2 102 and ZK2 102A controlled by electrical digital control system, and other advanced technologies are applied. In order to improve the machining efficiency and meet the requirements of mass production, a double spindle ZP265432 was developed.
In the early 1970s, all the deep hole drilling machines in the world were controlled by ordinary relays. For example, MEGA50 of ELDORADO Company in the United States, T30-3-250 of TBT Company in Germany, B4-H30-C/L of NAGEL Company and DEG of Shenqi Advanced Seiko Co., Ltd. in Japan all adopt relay control. In the late 1980s, numerical control technology was gradually applied to deep-hole drilling machines, especially after 1990s, this advanced technology was popularized. For example, ML series deep-hole drilling rig listed by TBT Company in the early 1990s, except that the feeding system was changed from mechanical stepless transmission to ball screw driven by AC servo motor, and the sliding table guide rail used for feeding was rolling linear guide rail, in order to ensure high-speed rotation and stable accuracy, the transmission of drill pipe box was changed from stepping transmission driven by pulley to belt to motor spindle transmission, which created favorable conditions for drilling small-hole deep-hole drilling machines and improving the horizontal quality of deep-hole drilling machines. This can be seen from the following main technical parameters: (ML series is the latest, T30 series is the past)
Model project ML200 ML250 T30-3-250 unit
The drilling range of 1 axis is 0.9 ~152 ~ 254 ~18 mm.
2-axis 0.9 ~102 ~18mm
3-axis1~1~11mm
4 axis1~10 ~10mm
The feed speed range is 0~ 15000 (stepless) 0~ 15000 (stepless) 35~320 (stepless) mm/min.
Spindle power 2.4-7.5 2X4 kW
Fast moving speed1500015000 3500mm/min.
Spindle speed 1000~24000 (stepless) 1000~9000 (stepless) 1375~6 100 (stepless) r/min.
(1) the borehole diameter extends to a small direction, indicating high technical content and strict quality requirements.
(2) The spindle develops to multi-axis, which can process multiple workpieces at the same time and improve the processing efficiency. ③ The spindle speed is high, and the application of advanced motorized spindle ensures smooth operation and improved accuracy. ④ The range of feed speed is wide and large, so the level of deep hole drilling machine has been improved rapidly due to the application of advanced technology for many years.
(2) Special deep hole drilling machine.
In recent years, in order to process oblique holes, vertical holes or parallel holes that cross each other or form an arbitrary angle with the center line of some parts, various countries have specially developed various special deep hole drilling machines. For example, the oil hole on the crankshaft, the inclined oil hole on the connecting rod, the parallel hole and the radial discharge hole of the feeding die of the feeder are specially designed and processed. For example, BW200-KW deep hole drilling machine produced by TBT Company is especially suitable for processing various small and medium-sized crankshaft oil holes from motorcycles to light trucks. BW250-KW deep-hole drilling machines, which are especially suitable for oil holes of crankshafts of large and medium-sized trucks, all have four-axis numerical control of X, Y, Z and W.. In order to meet the needs of customers, the company can process many different kinds of crankshaft oil holes on one production line. In 2000, the first flexible crankshaft machining center was designed and manufactured, which can process all oil holes on different crankshafts of 2 ~ 12 cylinders. A six-axis and six-hole deep-hole drilling machine, which is produced by MOLLART Company in Britain, is specially used for processing particle extrusion dies. The number of holes in this workpiece is as high as 36,000. Are controlled by numerical control system.
(3) Three-coordinate CNC deep hole drilling machine.
With the increase of household appliances market sales, the growth rate of plastic products is accelerated, and the plastic mold manufacturing industry is booming. In order to meet the deep hole machining of water holes and pin holes in dies, a deep hole drilling machine was developed. In recent years, the three-coordinate CNC deep-hole drilling machine has developed from a single-axis deep-hole drilling machine to a coordinate system multi-hole machining, which has developed rapidly. 1995, our company developed the first ZK2 103 three-coordinate CNC deep-hole drilling machine used to process the porous system on plastic molds in China. In order to meet the needs of the development of mold manufacturing industry, we also developed ZXK2 103 deep hole drilling and milling center and three-coordinate numerical control ZK2653, which can not only drill deep holes, but also perform milling and tapping. This kind of machine tool has developed rapidly in relevant countries in the world. There are not only three-coordinate (three-axis CNC shaft) deep hole drilling machines, but also four-axis and five-axis CNC shafts, and some of them have reached the six-axis fully automatic six-axis CNC gun drilling processing center or CNC milling and drilling center, and all of them have automatic tool changing devices. A few years ago, there were only 12 or 24 knives in the tool magazine, and the automatic tool changing device did not include slender gun drills. Now, not only the number of knives stored in the knife stock has increased, but also the gun drills have been automatically changed, which is a great development. For example, the tool magazine of four-axis numerical control (x, y, z, b) deep-hole drilling machine tool of Germany IXI0N Company stores 24 tools, TBT Company T30/320- 1050 kt, FTS deep-hole drilling center and drum tool magazine store 24 tools (including 8 different diameters, 3 tools each). At present, the FMC series fully-automatic six-axis NC gun drilling machining center of MOLLART Company in Britain has a drilling diameter ranging from Φ 5 to Φ 50 mm, and the maximum drilling depth is1350 mm. Besides drilling, it also has the functions of milling and tapping. When the rigid tapping M30 can't meet the requirements, we can also use standard milling cutter and spiral milling method to process large threads through numerical control interpolation function. Its automatic tool changing device has 90 tools, including automatic replacement of gun drills with the length of 1 500mm. Its uniqueness lies in the special auxiliary support of this long drill, which can be automatically put in place and retracted during processing. The machine tool also has a customized programming software GE. FANUC CNC system. Programmable parameters: spindle feed speed, drilling depth and monitoring in machining engineering. In order to expand the machining specification range of machine tools, some deep-hole drilling machines not only have the functions of gun drilling, plane milling and rigid tapping, but also have the function of internal chip removal drilling (BTA method), which can drill large holes and increase the flexibility of machine tools. For example, the 1A5TL- 1600-5 heavy-duty deep-hole drilling and milling compound machining center of Germany IX 10N company has five-axis numerical control, and its main technical parameters are: drilling diameter range: φ 3 ~ φ 36 (65) mm, in which the diameter larger than φ35mm can be drilled by BTA method. Primary drilling depth 1600mm, maximum drilling depth 2 100mm, milling capacity 250(400)cm3/min, spindle speed 300 (75) ~ 6000 r/min, five-axis NC W, X, Y, Z, B and A (-25). X table moves laterally; Y- drilling and milling unit moves vertically; Z column moves longitudinally; Table b rotates; Swing of drilling and milling device. Another example is the MD30-KW deep hole drilling and milling machine produced by German TBT company. Its main technical parameters are: drilling range: φ4 ~φ25mm, maximum drilling depth: 1000mm, milling capacity: 350cm3/min, maximum φ30mm twist drill drilling, tapping M24X3, and number of NC axes: X, Y, Z, W, B, A and C.
In recent years, in addition to the great development of deep-hole drilling machine, the deep-hole drilling gun itself has also changed a lot. In the past, the specifications of gun drills were generally around φ 2 ~ φ 30 mm, but now they have developed to φ 0.9 ~ φ 40 mm or even 50 mm, and the specifications of gun drills of BOTEK Company in Germany have been standardized to φ 0.9 ~ φ 50 mm, especially bits larger than φ 18mm can be clamped by machines. It is a non-abrasive drill bit. After the blade is worn, it will be indexed, and the blade or guide pad will be replaced without damaging or scrapping the arbor and handle.
To sum up, modern machine tools and tools for drilling deep holes with guns are developing as fast as other machine tools, and they are developing towards multi-axis and multi-functional numerical control. In the near future, environmental protection deep-hole drilling rigs will also appear one after another. So as to reduce or eliminate the influence of oil fume on human body.
second
Development of CNC drilling machine for PCB;
Resources /content/citation.dll？ ID= 10 1759 19
I hope I can help you!