[Drilling Machine] Drilling Machine Model Drilling Machine Safety Operating Procedures Radial Drilling Machine Disassembly Sequence
Drilling Machine Basic Classification
Drilling Machine Main A machine tool that uses a drill to process holes in a workpiece (such as drilling, reaming, reaming, tapping, countersinking, etc.). Essential equipment for machinery manufacturing and various repair factories. According to the use and structure, it is mainly divided into the following categories:
Vertical
The worktable and headstock can be moved vertically on the column, which is used for processing small and medium-sized artifact.
Benchtop
Bench drill for short. A small vertical drilling machine with a maximum drilling diameter of 12 to 15 mm is installed on a fitter table, mostly manual drilling, and is often used to process small holes of small workpieces.
Rocker arm type
The headstock can move on the rocker arm, the rocker arm can be rotated and lifted, the workpiece is fixed, and it is suitable for processing large and Heavy and porous workpieces, widely used in machine manufacturing.
Deep Hole Drilling
Deep hole drills are used to drill holes that are much deeper than their diameter (such as parts such as gun barrels, barrels, and machine tool spindles) In order to facilitate the removal of chips and avoid the machine tool being too tall, it is generally a horizontal layout, always equipped with coolant, a conveying device (the coolant is input from the inside of the tool to the cutting part) and a periodic tool retracting chip removal device Wait.
Center Hole Drilling
For machining center holes at both ends of shaft parts.
Milling-drilling machine
The worktable can be moved vertically and horizontally, and the drilling shaft is arranged vertically, which can be used for milling.
Horizontal Drilling Machine
A drilling machine in which the spindle is arranged horizontally and the headstock can be moved vertically. Generally, it has higher processing efficiency than vertical drilling machines, and can process multiple surfaces at the same time.
Technical parameters:
With the increase in the sales volume of the home appliance market, the growth rate of plastic products is accelerated, and the plastic mold manufacturing industry is booming. Deep hole processing of holes such as water holes and shooting pin holes on the top. The three-coordinate CNC deep-hole drilling machine developed from the single-axis deep-hole drilling machine processing in the past to the multi-hole processing that requires the processing of the coordinate hole system has developed rapidly in recent years.
In order to meet the needs of the development of the mold manufacturing industry, ZXK2103 deep hole drilling and milling center and three-coordinate numerical control ZK2103A, ZKA2102, which can perform milling, tapping and other functions in addition to drilling deep holes have been developed. Type deep hole drilling machine. There are not only three-coordinate (three-axis CNC axis) deep hole drilling machines, but also CNC axes have developed to four-axis, five-axis, and some have reached six-axis automatic six-axis CNC gun drilling machining centers or CNC milling and drilling centers, all of which have Automatic tool changer. In the past few years, there were only 12 or 24 tool magazines for storing tools, and the automatic tool changer did not include slender gun drills. Not only did the number of tool magazines increase, but also the gun drills were automatically replaced, which is a big deal. develop.
The TLF1004 four-axis CNC (X, Y, Z, B) deep hole drilling machine tool magazine of German IXI0N company stores 24 tools, T30/320-1050KT of TBT company, FTS deep hole drilling center , 24 drum-type tool magazines (including 8 different diameters, three of each), their gun drills are not included in the automatic tool changer. Now the FMC series automatic six-axis CNC gun drilling machining center of British MOLLART company, the drilling diameter range: φ5～φ50mm, the maximum drilling depth is 1350mm, in addition to drilling, it also has milling and tapping functions. When the rigid tapping M30 cannot be satisfied, the standard milling cutter and helical milling method can also be used to process large threads through the CNC interpolation function. Its automatic tool changer has 90 tools, including automatic replacement of gun drills up to 1500mm in length. , its unique feature is the special auxiliary support for this long drill bit, which can be automatically positioned and withdrawn during the processing process, and the machine tool also has a customized programming software GE.FANUC CNC system.
Programmable parameters:
Spindle feed rate, drilling depth, and monitoring during the machining process. In order to expand the range of machine tool processing specifications, some deep hole drilling machines not only have the functions of gun drilling for deep holes, milling planes, and rigid tapping, but also have the function of internal chip removal drilling (BTA method) for drilling. Large holes and increased machine flexibility. The 1A5TL-1600-5 heavy-duty deep hole drilling and milling compound machining center of German IX10N company, five-axis CNC, its main technical parameters: drilling diameter range: φ3 ~ φ36 (65) mm, of which the hole diameter larger than φ35mm can be drilled by BTA method . One-time drilling depth is 1600mm, maximum drilling depth is 2100mm, milling capacity is 250 (400) cm3/min, spindle speed is 300 (75) ~ 6000r/min, five-axis CNC: W, X, Y, Z, B, A (- 25°～+15°), press “A” where W—drilling and milling unit moves horizontally; X—worktable moves horizontally; Y—drilling and milling unit moves vertically; Z—vertical move of column; B—table rotation; A— The drilling and milling unit oscillates.
MD30-KW deep hole drilling and milling machine, its main technical parameters: drilling range: φ4～φ25mm, maximum drilling depth 1000mm, milling capacity 350cm3/min, twist drill maximum φ30mm, tapping M24X3 ,The number of CNC axes: X, Y, Z, W, B, A and C axes, this machine tool has great flexibility, in addition to machining perpendicular to the plane and drilling deep holes on the inclined plane, you can also use “C” ” shaft drills oil holes anywhere on the crankshaft.
In addition to the great development of deep hole drilling machines, the deep hole drilling guns themselves have also undergone great changes. In the past, the specifications of gun drills were generally about φ2 to φ30mm, and have developed to φ0.9 to φ40mm or even 50mm. The specifications of gun drills have been standardized to φ0.9~φ50mm, especially the drills larger than φ18mm can be clamped by machine. Will damage or discard the shank, handle, etc.
Safety Operating Procedures
1. Before working, it is necessary to comprehensively check whether all operating mechanisms are normal, wipe the rocker arm guide rail with fine cotton yarn and press the lubricating oil. Brand oil.
2. The rocker arm and headstock can only be operated after all parts are locked.
3. There should be no obstacles within the swing range of the rocker arm.
4. Before drilling, the table, workpiece, fixture and cutting tool of the drilling machine must be aligned and tightened.
5. Correctly select the spindle speed and feed amount, and do not use overload.
6. For drilling beyond the worktable, the workpiece must be stable.
7. When the machine tool is running and automatically feeding, it is not allowed to change the speed of tightening and changing. If the speed is changed, it can only be carried out when the spindle stops completely.
8. Loading and unloading cutting tools and measuring workpieces must be carried out during the shutdown. It is not allowed to directly hold the workpiece for drilling, and it is not allowed to operate with gloves.
9. If abnormal noise is found during work, it must be stopped immediately for inspection and troubleshooting.
Disassembly sequence of radial drilling machine
(1) Cut off the power supply and remove all motors and related electrical components.
(2) Remove the headstock from the right end of the rocker arm.
(3) Support the rocker arm or hang it firmly, and remove the lifting mechanism.
(4) Lift out the rocker arm.
(5) Hang out the outer column.
(6) Remove the inner column from the base.
(7) Remove the base (if it is repaired in situ or without surface planing, it is not necessary to remove the base).
How to expand the scope of use of the radial drilling machine
The radial drilling machine can play a part of the role of a lathe, milling machine, and boring machine by adding some simple and easy auxiliary tools. Some problems in production and processing.
1. Fix the auxiliary tool for clamping the turning tool on the main shaft of the radial drilling machine, which can process a certain part of the large hole end face on the larger workpiece.
2. Make a device for clamping shaft parts that can be used for linear feed movement by hand, and fix it on the worktable of the radial drilling machine, so that pin grooves can be milled on the shaft workpiece.
3. When machining larger holes on the workpiece, if the workpiece is large in size and complex in shape, it is not suitable for machining on other machine tools, a boring bar can be installed in the spindle of the drilling machine, and the installation is like a boring bar. After the knife can be processed. For example, when boring on a radial drilling machine, the column, rocker arm, and spindle box should be clamped firmly to prevent the boring tool from being damaged by the spindle swing during processing.
4. When processing larger holes on sheet metal or pipe arms, special tools can be used to cut them on a radial drilling machine. Two cutters are clamped on the cutting tool, which is more balanced and more stable than clamping one cutter. The efficiency can be doubled. Before cutting, in the center of the hole to be machined in the workpiece, first drill a hole with the same diameter as the support shaft, and the support shaft extends into the hole for support during cutting.
