FR2640542A1 - Method and device for cutting and piercing material on a work site allowing interchangeability of a saw and of a known core sampler which are mounted on a common guide system - Google Patents

Abstract

The subject of the present invention is a method and a device for cutting and piercing material on a work site allowing the interchangeability of a known saw and of a known core sampler which are mounted on a common guide system. The device includes two known guiding systems 2 and 5 including elements 12 which can be interfitted, two carriages 3 which are associated with any drive system 13 secured to the guides, and two end supports 1 of one of the guides fixed to the surface of the material to be pierced and to be cut. The first carriage 31 carries a chair 4 receiving the end of the second guide system 5 and the second carriage 32 receives, as needs be, a saw 6 of the disc type or a core sampler 7 which are easily interchangeable in situ by virtue of a quick-locking system 92.

Description

Method and device for cutting and drilling material on
site allowing the interchangeability of a saw and a
core drilling machine, known, mounted on a common guide system.

DESCRIPTION
The present invention relates to a method and a device for cutting and drilling material on site allowing the interchangeability of a saw and a core drilling machine, known, mounted on a common guide system.

 The technical sector of the invention is the manufacture of site tools for cutting and drilling material.

 One of the applications of the invention is the production of a saw and core drilling unit, using in particular diamond tools for cutting and drilling on the site the same wall, in particular of concrete, of a building.

 There are indeed various possibilities for the demolition of walls made of hard material such as concrete. One of the best known and oldest is the use of the jackhammer, but this means is very noisy and imprecise and, it is more and more abandoned especially in the building and in places where you want a clean cut with the minimum of dust.

 Another means is the thermal lance, but it is very dangerous and also imprecise; despite its effectiveness, its use is limited to specific uses, in particular underwater.

 Chemical means are also used by product expansion, or hydraulic cylinders, or vibrations, but in this case it is a question of global demolition because we do not control the extent of it.

 Another way is cutting by high pressure water jet: the results are very precise, but require expensive equipment and do not allow all kinds of cutting. In fact, more than 90% of the so-called demolition and drilling of walls in the building, industrial, collective or private, are carried out by mechanical tools, type portable machine tool.

 We know for example, many tools allowing to saw different materials, in particular concrete thanks to diamond discs: taking into account the hardness of the material, these tools require a rigid and integral guidance of the material, on the one hand to make penetrate the disc therein and on the other hand, to advance this rotating disc along the line along which we want to cut the material.

Different guiding devices exist for this and various patents have been filed, such as that of the German company VLIESPNA WERKE GmbH, requested on November 30, 1961 in FRANCE under the
NO. 996.811 and entitled "Improvements to stone sawing machines". It is a saw mounted on a fixed frame receiving the stone to be cut comprising a rocking lever for penetration of the disc and various devices for adjusting the height, inclination of the disc and advance.

 Another patent from the Swiss company HYDROSTRESS AG filed on January 21, 1983 in SWITZERLAND under NO.CH-351.83 describes a concrete cutting saw supported by a guide rail comprising fixing feet anchored in the concrete wall to be cut.

We could also cite the patent of the German company
Guenther PAPENMEIER registered in the UNITED STATES on April 4, 1968 under NO.

US. 718.706 and describing a disc sawing process, in a production workshop, comprising a support frame for guiding in x and y and an electronic control making it possible to direct and turn the disc in all the desired cutting directions without loss of time.

 Various other known sawing systems include a longitudinal guide rail fixed directly flat or on feet as in the Swiss patent above, along the cut to be made and a movement control perpendicular to the surface to penetrate the disc. either by a lever as in the French patent above, or by an endless screw driven by a crank, The strokes allowed in these two systems are often limited when the cutting disc is of large diameter, it is necessary to make preliminary passes with a small disc, disassemble the saw, and return the large disc mounted on the saw inside the first pass, which is often difficult to achieve.

 In addition, many other tools are known for drilling different materials for drilling and taking cores, in particular in concrete using diamond tools.

Here too. as for sawing. due to the hardness of the material, it is necessary to have a guide, but only in this case, along the desired axis of penetration.

 Various devices have been developed for this by the manufacturers, specific to drilling-coring, but using guidance and displacement drive systems according to the same principle as for sawing, such as racks, hollow or solid profiles. , worms, chains and other known means.

 One can quote for example the German patent DE. 32 11 444 filed on March 27, 1982 by the company Schiltzeichel, which describes a feed device for saw and drill, using rollers in the form of diabolos which can be clamped on a "V" guide profile; similarly a French patent NO. 77 / 11.923 filed on April 20, 1977 by the company MICRO-CONTROLE, which describes a guide assembly for the movement of tools comprising cross-section rails, one branch of which carries a rack, around which the carriages move and arranged in gantry, so as to allow the translation of the tools in the three directions.

 Thus, many manufacturers offer various tools specialized in sawing or drilling and, either for workshop use and then comprising gantries and heavy and complex frames. or for site use which then only has a single removable guide system which is fixed on the material to be worked and which must be moved or changed at each cutting modification.

 These operations are long, expensive and delicate, especially when it comes to making clean cutouts in particular for drilling a door in a building wall. The saw cuts must not be cut in the angles where it is then necessary to carry out a drilling, obliging the change of tools and each of these having to fall exactly in the trace of the other.

 In addition, this requires operators to carry with them several additional tools, to make numerous fixing holes and to handle fairly heavy and bulky supports and guide frames between each operation.

 The problem is to be able to carry out different sawing and drilling operations, in particular on the same wall with, on the one hand, a sawing tool and, on the other hand, a drilling tool used successively while minimizing handling. of material, the number of fixings to be made in the wall and the number of parts to be transported.

A solution to the problem posed is a method of cutting and drilling material on site allowing the interchangeability of a disc type saw and a core drilling machine, known and mounted on a common guide system, characterized in that
- two known guide systems are chosen comprising elements which fit into one another, the rigidity and strength of which are sufficient to withstand the cutting and drilling forces, with the minimum of deformation, which guide systems each carry a carriage that is moved by any known drive system associated with this guidance ;;
- Two end supports receiving one of the guide systems are fixed on the surface of said material, so that it is parallel to the desired cutting line, of the desired length and at a given distance from said surface to be cut ;
- A chair is mounted on the carriage of this first guide system, on which the end of the second guide system is then fixed, so that the axis of the latter makes a given angle with the axis of the first , and that the plane defined by these two axes makes another given angle with that carrying the cutting line and tangent to the surface of said material
- Is mounted on the carriage of the second guide system a support integral with said saw, so that the disc thereof does not touch the surface of the material and is in the plane of the desired cutting line; ;
- the cutting is carried out at the second given angle, respecting the known operating mode of the saw, by moving the second carriage to make the saw penetrate the material and the first carriage to advance the saw along the line
- When the cutting is finished and if at least drilling is desired along the cutting line, the said saw and its support are removed from the second carriage and the core drill is mounted thereon instead;
- The first carriage is moved along the first guide system and the angles are redefined if necessary, so that the axis of the core drilling machine corresponds to that of the desired drilling;
- this drilling is carried out according to the known operating mode of the core drilling machine, by moving the second carriage towards the material to be drilled
- when the drilling is finished, any other desired drilling is carried out on this same cutting line, then the two said end supports of the first guide system are dismantled in order to re-attach them to another location, in order to carry out either other drilling along another cut, either other holes or other isolated cuts.

Another solution to the problem posed is a device for cutting and drilling material on site allowing the interchangeability of a disc type saw and a core drilling machine, known and mounted on a common guide system, characterized in that 'it comprises
- two known guide systems comprising elements which fit into each other and whose rigidity and resistance are sufficient to withstand the cutting and drilling forces with the minimum of deformation, which guide systems each carry a known carriage associated with any known drive system integral with the guide, and one of which is supported at its ends by two supports to be fixed on the surface of the material to be cut, so that the latter is at a given distance therefrom;
- A support chair, mounted on the first carriage of this first guide system by any known and rapid fixing system and receiving the end of the second guide system;
a support associated with a disc type saw, which can be mounted by any known and rapid system of attachment to the second carriage carried by this second guide, so that said saw is parallel to the first guide which can be quickly removed from said second carriage and interchangeable with a known core drilling machine, which can be mounted with the same fixing system on said second carriage.

 The result is a new process and device for cutting and drilling material on site, allowing the interchangeability of a saw and a known core drilling machine on a common guide. This interchangeability according to the method and the device of the invention offers numerous advantages.

 Firstly, this makes it possible to have only one support for two jobs using different machines whereas usually two are needed, which in particular reduces the bulk of the equipment for transport.

 Secondly, this single support is installed only once for several cutting and drilling jobs on the same line, which reduces the number of fixing holes to be made in the material and eliminates the necessary handling operations. when there are two different supports. This saves operating time.

 Thirdly, this unique installation allows better precision in the relative position of the drilling and cutting axes.

 Fourth, one can saw along a generator of curved walls as for chimneys, since the first guide system is held only at its ends.

 Fifth, the second guide system can be extended in the same way as the first by interlocking elements, which allows the use of large cutting discs for very thick walls of material, without removing the whole saw. since in the present device according to the invention, it can then be moved away from the desired distance from said wall.

 Sixth, one end of the first guide system can be offset longitudinally by around 300 mm, for example in that of the cutting line, which makes it possible to saw in corners, such as near ceilings when opening doors or windows in a building.

 Seventh, the guide systems being quite spaced laterally from the cutting lines, these systems can be used as a lifting and extracting means to remove the blocks of material which are often quite heavy, once cut.

 We could thus cite many advantages such as that also of being able to use two standard supports of known core drilling machines, of the rack type and with square section element, to produce the device and the method according to the invention thanks to a few adaptation parts. to transform these two supports into a saw support then easily and quickly interchangeable with a core drilling machine. This allows in addition to the above qualities, a very attractive financial saving for operators who already have two core drills and a saw.

 These numerous advantages are very interesting, in particular for core drills and saws with diamond tools for drilling and cutting concrete walls such as walls or partitions in an existing building or structure. These tools being relatively silent and limiting the production of dust, the combined performance with the device according to the invention make them a very interesting tool.

 The following description refers to the accompanying drawings, without any limiting character, describing an exemplary embodiment of a device for cutting and drilling material on site, allowing the interchangeability and the transformation of a saw and a known core drilling machine on a common guide, but other applications and other embodiments with other types of tool having the same function can be envisaged in the present invention.

 Figure 1 is an exploded perspective view of the device according to the invention.

 Figure 2 is a schematic perspective view of the device mounted with a saw.

 Figure 3 is a schematic perspective view of the device mounted with a core drilling machine.

Figure 1 is an exploded perspective view of a cutting and drilling device essentially comprising
a first system 2 for guiding the axis AA ′, composed of nestable elements 121 by any known means, for example of the nipple type 19 and pin 20, to constitute a rigid support and terminated at its two ends by two supports 1 that is fixed on the surface of the material 8 to be cut, so that this guide 2 is at a given distance therefrom and parallel to the desired cutting line; the two end supports are of any shape, in particular as shown here in the shape of an L, one branch of which is associated with a support plate 17 which is itself fixed in the material by any system of expandable peg type and the other branch is compatible with its assembly by fitting with one of the ends of the nestable elements 121;
in a particular embodiment, the elements 121 can be rotated relative to the end supports 11 and 12, in order to possibly vary the angle ss of the guide plane relative to the plane of the surface of the material 8 on which is fixed the first guide system 2;
- A carriage 31 of any known type, carried by this guide system 2 and associated with any known drive system 131 integral with said guide; this carriage 31 carries a support chair 4 which can also be L-shaped and which is fixed by any known and rapid system 91 for fixing on said carriage, such as an interlocking on one side and an eccentric pin threaded in the 'other side or as shown by way of example, a cross fitting and a screw 18 for locking.

 - A second axis guide system 5 BB 'mounted at one of its ends on said chair 4 and carrying a second carriage 32 associated with any known drive system 132 integral with this second guide, which can also be composed of nestable elements 122 one inside the other; this second carriage 32 receives by any fast fixing system 92 as indicated for the first carriage 319 either the support 10 of a known saw 6 of disc type 16, or the support it from a known core drilling machine 7.

 In a preferred embodiment as shown here, the two guide systems 2 and 5 are identical: the nestable elements are of square section, the drive systems 13 are racks located on one of the sides of the square section of said elements 12 and the carriages 3 completely surround the latter thanks to a corresponding adjusted internal hollow section and each comprise a gear allowing their movement by any external system of rotation of the crank or flywheel type 241 and 242 respectively.

 The rigidity and the resistance of the elements 121 and 122 and of their nesting are calculated to support the cutting and drilling forces with the minimum of deformation and the chair 4 may include an orientation system making it possible to vary the angle a of the second guide system 5 relative to the first 2.

 To compensate for the reaction forces during the installation of the tools and during sawing or drilling, which forces induce a torsional moment in the guide system 2, the first carriage 31 has a fulcrum 14 on the side opposite to the chair 4 supporting the second guide system 5 and said chair also includes a second support point 15 of the caster type. These support points 14 and 15 can be adjustable in height so as to be in contact with the surface of the material 8, then they make it possible to follow within a certain limit the inequalities of the wall, especially in the case of sawing of great length.

 Depending on the length of the desired cut, more or less elements 121 are added in the first guide system 2, and depending on the diameter of the disc 16 of the saw 6, more or less elements 122 are added in the second system guide 5 so that the disc can be released from the surface of the material 8 without handling.

 As described above, the cutting plane of said saw 6 and the drilling axis BB 'of said core drilling machine 7 can form angles, ss and a respectively, variable and adjustable, with the surface of the material 8 by any system. known orientation and then blocking associated respectively with the supports 1 of the ends of the first guide system 2, and with the chair 4 support of the second guide system 5.

 In a preferred embodiment, in particular for drilling an opening in a wall, said cutting plane and the drilling axis BB ′ are fixed and make angles of approximately 900 with the surface of said material 8.

 FIG. 2 is a schematic perspective view of the device mounted with a saw 6.

 The first guide system 2 is mounted in such a way that its axis AA ′ is parallel to the necessary distance from the desired cutting line CC ′, taking into account the dimensions of the different parts of the device.

 As described in FIG. 1, the angle ss of the cut can be adjustable by tilting the disc 16 and the saw 6 relative to the end support pieces 1.

 In a preferred mounting mode, the sawing operations are carried out in a plane perpendicular to the surface of the materials, taking an angle value ss equal to approximately 90.

 According to one embodiment, the support part 10 of the saw 6 allowing it to be quickly mounted on the carriage 32 is offset with respect to the axis of the disk 16 to reduce the distance of the latter with the axis AA '. In this case, said saw makes a cut which may at one end A ′ extend beyond the guide system 2, which allows cuts to be made near the wall angles.

 To mount said saw 6 on the carriage 32. it is raised along the second guide 5 of a sufficient height to allow the passage of the disc 16 above the surface of the material 8 to be cut. The carriage is then moved along the first guide system 2 up to. present the saw at the start of the desired cutting line 23; the disk 16 is made to penetrate into the material 8 by moving the carriage 32 towards the surface thereof to the desired depth, then the assembly is advanced using the carriage 31. By combination of the two movements of the carriages 32 and 31 ensuring the movement of penetration and advance respectively, it is possible to make cuts by following a slope.

 Figure 3 is a schematic perspective view of the device mounted with a core drilling machine. If one indeed wants to carry out coring along the same line CC 'as that of cutting of figure 2, it is enough to disassemble the saw 6 of the carriage 32 and to replace it by any core drilling machine 7 equipped with a support fixing compatible with the carriage 32 without moving or modifying the guide systems 2 and 5; the carriage 31 is then moved along the axis AA 'until the axis BB' of the core drilling machine corresponds to that of the desired drilling 21. By then maneuvering the carriage 32 towards the surface of the material 8, drilling is carried out according to the known procedure of the core drilling machine.

 As with sawing, the drilling angles a and ss can be adjusted by tilting the axis BB '.

 In a preferred mounting mode, the drilling operations are carried out in planes perpendicular to the surface of the material, taking the values of the angles a and ss of approximately 90.

 The support piece 11 of the core drilling machine 7 can also include shims of adjustable thickness depending on whether it is desired to perform tangent, sequential or distant drilling from the cutting line CC ′.

 In particular, to make openings 22 of windows or doors in a wall for which the regulations prohibit the overlapping of two cutouts, it is possible with the present device to fix the first guide system 2, so that one end A at least exceeds that C of the cutting line CC ′, and to carry out a drilling in this said end with the core drilling machine 7 mounted in place of the saw 6, so that the cutting plane emerges entirely in the hole without crossing it. By doing the same with the cutting on the other side DD 'of the opening 22, the latter is obtained without crossing saw cuts, with very good precision and minimum handling.

 It is obvious that the device according to the invention is not limited to only sawing and drilling operations on the same cutting line. It is of course possible to use the device to perform any sawing and drilling, even isolated on a site, as with any known current device.

  The present invention is not limited to the embodiment described above and which is only an example of the manufacture of a device to which modifications and variants can be made, in particular at the level of the guide system 2 and 5, saws 6 and core drills 7 and their fastening system on the carriage 32. Indeed. all current known systems and machines can be used in combination with specific parts necessary to carry out the present process and the device according to the invention.

 In particular, all disc saws and core drills using saw disks and diamond drilling tools respectively, all for cutting and coring concrete with hydraulic, pneumatic or electric drive motors as appropriate, Are adaptable to the above device.

Claims (9)

 1. A method of cutting and drilling material on site allowing the interchangeability of a saw (6) of disc type and a core drilling machine (7) known and mounted on a common guide system, characterized in that  - two known guide systems (2 and 5) are chosen, comprising elements (12) which fit together, the rigidity and strength of which are sufficient to withstand the cutting and drilling forces, with the minimum of deformation, which guidance systems each carry a carriage (3) which is moved by any known drive system (13) associated with this guidance;  - Two end supports (1) receiving one of the guide systems (2) are fixed on the surface of said material (8), so that the latter is parallel to the desired cutting line (CC '), the desired length and at a given distance from said surface to be cut;  - A chair (4) is mounted on the carriage (3) of this first guide system (2), on which the end of the second guide system (5) is then fixed, so that the axis (BB ') of it makes a given angle (a) with the axis (AA') of the first, and that the plane defined by these two axes makes an angle (p) with that carrying the cutting line (CC ') and tangent to the surface of said material (8) ;;  - Is mounted on the carriage (32) of the second guide system (5) a support integral (10) of said saw, so that the disc thereof does not touch the surface of the material and is in the plane of the desired cutting line (CC ');  - cutting is carried out at the given angle (p), respecting the known operating mode of the saw (6), by moving the second carriage (32) to make the saw penetrate the material (8) and the first carriage (31) to advance the saw along the line (CC ');  - when the cutting is complete and if at least drilling is desired along the cutting line, remove said saw (6) and its support (10) from the second carriage (32) and mount the core drilling machine ( 7) on it;  - the first carriage (31) is moved along the first its guide system (2) and the angles (a and ss) are redefined if necessary, so that the axis (BB ') of the core drilling machine (7) corresponds to that of the desired drilling;  - This drilling is carried out according to the known operating mode of the core drilling machine (7), by moving the second carriage (32) towards the material to be drilled (8);  - when the drilling is finished, any other desired drilling is carried out on this same cutting line (CC '), then the two said supports (1) of the end of the first guide system (2) are dismantled in order to re-attach them to another place, in order to carry out either other drilling along another cut, or other drilling or other isolated cuts.  2. A method of cutting and drilling material on site according to claim 1, characterized in that the sawing and drilling operations are carried out in planes perpendicular to the surface of the material taking the values of the angles (a and ss ) defined by the guide axes (AA 'and BB') and the plane of the surface of the material (8) to be cut equal to approximately 90.  3. A method of cutting and drilling material on site according to any one of claims 1 or 2, characterized in that one fixes the first guide system (2) so that at least one end exceeds that of the corresponding cutting line (CC ') and that a drilling is carried out on this said end with said core drilling machine (7) mounted in place of the saw (6), so that the cutting plane emerges entirely in the borehole, without crossing it.  4. Device for cutting and drilling material on site allowing the interchangeability of a saw (6) of disc type (16) and of a core drilling machine (7), known and mounted on a common guide system, characterized in that it includes  - two known guide systems (2 and 5) comprising elements (12) which can be fitted into each other and whose rigidity and resistance are sufficient to withstand the cutting and drilling forces with the minimum of deformation, which systems guide each carry a known carriage (3) associated with any known drive system (13) integral with the guide, and one of which (2) is supported at its ends by two supports (1) to be fixed to the surface of the material (8) to be cut, so that the first (2) is at a given distance therefrom;  - a support chair (4), mounted on the first carriage (31} of this first guide system (2) by any known and quick fixing system (91) and receiving the end of the second guide system (5) ;  - A support (10) associated with a saw (6) of disc type, which can be mounted by any known system (92) and fast fixing on the second carriage (32) carried by this second guide (5), such so that said saw (6) is parallel to the first guide (2) quickly removable from said second carriage (32) and interchangeable with a known core drilling machine (7), which can be mounted with the same fixing system (92) on said second carriage ( 32)  5. Device for cutting and drilling material on site according to claim 4, characterized in that the two known guide systems (2 and 5) are identical and whose nestable elements (12) are of square section, the systems d 'drive (13) are racks and the carriages (3) completely surrounding the elements (12) have a gear allowing their movement by any rotation system (14).  6. Device for cutting and drilling material on site according to any one of claims 4 and 5, characterized in that the first carriage (31) has a bearing point (14) on the side opposite to the chair (4 ) support of the second guide system (5), and said chair also comprises a second support point (15) of the caster type, which support points are adjusted to be in contact with the surface of the material (8).  7. Device for cutting and drilling material on site according to any one of claims 4 to 6, characterized in that the cutting plane of said saw (6) and the axis (BB ') of drilling of said core drilling machine (7) form variable and adjustable angles with the surface of said material (8), by virtue of all known systems of orientation then of blocking associated respectively with the supports (1) of the end of the first guide system (2), and with the chair (4) supporting the second guide system (5).  8. Device for cutting and drilling material on site according to claim 7, characterized in that the cutting plane and the axis (BB ') of drilling make angles of about 90 with the surface of said material (8).  9. Device for cutting and drilling material according to any one of claims 4 to 8, characterized in that said saw (6) and said core drilling machine (7) respectively comprise discs (16) sawing and drilling tools , all with diamonds.