NL8101080A - Trepanning drill for different materials - is mounted in unit positioned where hole is to be drilled - Google Patents

Abstract

The drill is mounted in a unit positioned where the hole is to be drilled, or alternatively the material can be positioned in relation to it, or a combination of both. There can be one or more units working in the vertical direction and mounted on travelling slides on a movable portal structure spanning the work. Alternatively they can work in the horizontal direction, being mounted on slides on a travelling column. Capstan heads can be provided, accommodating several trepanning drill bits of different diameters.

Description

-1- A.M.Luyken in Grave.

Drill and drill cutting machines, using so-called hollow drill or hole saws as drilling tools.

The invention relates to the use of the properties of the so-called hollow drill or hole saw, as described in the patent application of AMLuyken in Grave, the applicant of this patent application, and the use of the so-called cutters or hollow drill bits from US patent 3 10 564, for the design and construction of machines that make optimum use of the favorable properties of these tools.

It is already known to use the hollow drills or holesaws, as already known, on conventional drills designed and built for use with twist drills and on portable transportable magnetic base drilling units.

The disadvantage of use in this way is that the properties of the hollow drill or hole saw are not sufficiently emphasized, because use on conventional drills usually comes up against the drawback that an excessive drilling pressure is exerted on the hollow drill or hole saw due to or a mechanical feed per revolution either a too large or a fine or not fine enough adjustable hydraulic or pneumatic feed force or drilling pressure, with also a relatively too large mass of the drill head, resulting in frequently occurring breakage and a short service life of the hollow drill or hole saw. The aforementioned American cutter or hollow drill is only applied to portable magnetic base drilling units which are fed by hand. It is true here that the drilling pressure is in hand, but an adjustment thereof is lacking, moreover, mechanization or automation of the drilling process is not possible with such a manually operated unit.

Single and multi-spindle drills are already known, in which 30 are drilled in horizontal and / or vertical direction. using conventional twist drills. These are constructed in terms of construction and weight. As a result, it has also only become practically feasible to make one single-spindle drilling machine, such as according to fig. 1 and / or 2, wherein the drill head is moved along or over the material and this still by means of a heavy construction.

A 3-spindle machine is not known which is moved and positioned over the material as in fig. 3 and 4 because this was not considered due to the heavy construction. Well-known are the 40 multi-spindle drills in which the material is fed through the stationary machine using positioning systems.

Disadvantages of these existing systems are: - by using conventional twist drills or other drilling systems other than the mentioned hollow drills, higher drilling pressures and drilling moments are obtained, resulting in heavier and more expensive constructions.

- to construct a 3- or multi-spindle drilling machine in which the machine is positioned over the material was practical and not possible for cost-price reasons.

With these systems, when coupled to other machines such as sawing machines and / or blasting equipment by means of transport means such as roller conveyors and cross transports, a -1 -_______ 8101080 is obtained. \ -2- greater required floor space (see fig. 6).

- a 3- or multi-spindle drilling machine in which the material is positioned by the machine requires an expensive positioning system.

The object of the invention is to provide a series of practically applicable machines which do not have the above drawbacks and which are specially designed and used for application and optimal utilization of the properties of the so-called hollow drill or hole saw for drilling and deep drilling of through holes. .

This aim is achieved by basically designing relatively light machines with drill bits which have a finely adjustable hydraulic or pneumatic drilling pressure suitable for this hole drilling or hole sawing and where the hole to be drilled is determined by a motor or manual positioning of the drill bit or material using digital reading and / or control.

The invention also relates to the utilization of the properties of the hollow drill or hole saw with regard to the relatively light construction by combining it with cutting various types of material, which may concern autogenous, plasma and laser beam cutting.

The object of this invention is to be able to drill the material for the purpose of drilling holes in sheet material and / or beams and / or profiles, also with the possibility of combining them with cutting the material. This object is achieved by using the said hollow drills, whether or not in combination with a cutting device.

The invention will be explained in more detail with reference to drawings in which embodiments are included and a graph.

Fig. 1 to 4 show a number of application examples of vertical and horizontal drill and drill cutting machines, which are characterized by their light and therefore inexpensive construction.

Fig. 5, which presents graphs for determining the required drilling pressures and drilling torques when using said hollow drill, explains why these machines with such a light construction can be built for the same 35 "drilling capacity * After all, by using said hollow drill the required drilling pressure is reduced to approx. 1/10 of the usual and the required torque to approx. 1/3, resulting in a light construction.

This light construction makes it easier and possible again 40; to move the drill chuck (s) with its support construction relative to the material to be drilled, which offers advantages from the viewpoint of the required space, routing and control.

Fig. 1 shows a single spindle horizontal drilling machine in which the drill head runs along the clamped material for positioning in horizontal and vertical direction.

Fig. 2 shows a single-spindle vertical drilling machine in which the drill bit moves over the material to be drilled and in which it is moved in the longitudinal and transverse directions over slides for positioning, it being easy to place a 50 cutting device next to the drilling machine for a cutting operation.

Fig. 3 shows a three-spindle drilling machine in which one or more -2- ___ ._ 8101080 _-y ~ _ vertical drilling heads and 2 or more horizontal drilling heads are mounted on slides on a support construction which can be moved longitudinally over the material. for positioning in the longitudinal direction and wherein the drill heads can be moved over slides over the support construction for positioning,

Fig. 4 shows the same machine as in Fig. 3, in which the support construction of the drill heads does not run over a carriage on which this support construction rests, but in which this support construction hangs from a slide track,

The exemplary embodiments mentioned can instead of drill heads also be equipped with turrets,

Fig. 6 shows a plan of a sawing machine with roller conveyor in front of and behind the sawing machine and a cross conveying system, with a drilling machine running over the cross conveying system for drilling the material showing that it is possible with this system beams, profiles, etc., sawing, drilling and moving, whereby it is sufficient to use 2 x length of the longest beam or profile, which is not realized for this purpose in any system known to date.

All the mentioned hollow drill or hole saw drilling machines can also be combined with a cutting option and also a tap option by means of tap units.

8101080

Claims (1)

-4- CONCLUSIONS. -1- Hollow Drill or Hole Saw Drills for "hearing, deep drilling or sawing through holes in the widest variety of materials using the properties of so-called hole drills or holesaws in terms of low drilling pressure required and low drilling capacity required, which hole saws and hollow drills are described in U.S. Patent 3 104 564 and in the patent application of AMLuyken in Grave or corresponding tools, characterized in that the machines are constructed for use of these hollow drills or holesaws in view of the low required pressure and relatively low drilling power, in which the hollow drills or holesaws are taken up on a drilling unit which is positioned to the location of the hole to be drilled, either where the material is positioned relative to the drilling unit or a combination of both. 15 -2- Hollow drilling or hole saw drilling machines according to claim 1, characterized in that one or more hollow drills or holesaws is centered If one or more drilling unit (s) are to be drilled in a vertical direction and the drilling unit (s) is (are) movable relative to the underlying material, over a slide on a portal construction, which port is either movable over a carriage which rests or hangs on or on a support structure and which displaces transversely of that of the drill head on its slide over the material for positioning the drill head, while it is also conceivable that the support structure is stationary and the material is positioned # 5 Hollow drill or hole saw drilling machines according to claim 1, characterized in that one or more hollow drill or hole saws drill horizontally by means of one or more drilling unit (s) and wherein the drilling unit (s) is (are) movable in vertical direction over a slide on a column, which column is displaceable again over the supporting structure along the material, so that the hollow drill is brought into position with respect to the material or where the column is stationary and the material is longitudinally positioned. Hollow drill or hole saw drilling machines according to claims 1, 2 and 3, so that a machine is created with which the material is drilled horizontally and vertically on 2 sides. -5- Hollow drill or hole saw drills according to claims 1,2 and 3, such that the material can be drilled on 3 sides, namely ι / o vertically on 1 side and horizontally on 2 sides, so that a 3 or more spindle drilling machine is created . Hollow drill or hole saw drills according to claims 1 to 5, in which the drill bit (s) are replaced by a turret for accommodating several hollow drills of different dia-IfS meters. Hollow drill or hole saw drilling machines according to claims 1 to 6, wherein also a combination takes place with a cutting device, which can be either autogenous, plasma or laser beam cutting device, wherein in addition to the drill head ( pen) one or more 50 cutting heads are fitted for combined drilling and cutting of the material. 8101080