WO1993019915A1

WO1993019915A1 - Tool stand, in particular for stone borers and saws

Info

Publication number: WO1993019915A1
Application number: PCT/EP1993/000789
Authority: WO
Inventors: Jürgen Meissner
Original assignee: Maschinenbau Meissner Gmbh
Priority date: 1992-04-04
Filing date: 1993-04-01
Publication date: 1993-10-14
Also published as: DE9204693U1; EP0633832A1

Abstract

A tool stand (106) has at least one base (12) that carries at least one vertical guidebeam (18). A sliding carriage (28) is slidingly guided on this vertical guidebeam (18) and carries in turn another guidebeam (18''). A stone borer or a stone saw tool (98) is held on the second guidebeam (18''). In this case, the second guidebeam (18'') is movably mounted on another sliding carriage fixedly or rotatably linked to the sliding carriage guided on the vertical guidebeam (18). Alternatively, the second guidebeam (18'') may be mounted on the sliding carriage (28) guided on the vertical guidebeam (18) and may carry another sliding carriage (28) which in turn holds the tool or upon which is movably guided a third guidebeam (18'). The guidebeams and sliding carriages of the tool stand may be assembled in widely varying configurations adapted to the prevailing conditions and space available during stone sawing and boring.

Description

Tool stands, especially for stone drills and

Stone saws

The invention relates to a tool stand, in particular for stone drills, with at least one base, at least one guide bar connected to the base and a sliding carriage which can be displaced on the at least one guide bar.

Tool stands are used for drilling and sawing in concrete or stone, which are anchored to the concrete or stone with their base. A guide bar is attached to the base, on which a sliding carriage is slidably mounted. The guide bar is provided with a rack with which a gear meshes, which is rotatably mounted on the slide. The gear can be driven by hand or by motor. By turning the gear wheel, the sliding carriage moves relative to the guide beam, with the result that the drilling or sawing machine attached to the sliding carriage can be moved.

The forces that act on the slide, the guide bar and the base of the tool stand during drilling and sawing are extremely different. That is why the tool stands used previously for drilling and sawing differ in their construction, whereby the guide beams of the stone drilling tool stands are much more stable than those used for sawing. So far there are both tool stands for stone drills and tool stands for stone saws. These systems cannot be expanded and are also not compatible with one another. The invention has for its object to provide a tool stand, in particular for stone drills or stone saws, which can be used equally well for drilling and sawing concrete or stone and which in particular by attaching the most varied tool constructions with regard to its use ¬ range is expandable.

To achieve this object, the invention proposes a tool stand of the type mentioned at the outset, which is further characterized in that the guide bar has two spaced-apart and mutually parallel guide profiles, against which sliding parts of the sliding carriage bear in a sliding manner, that the sliding chutes has at least one sliding piece per guide profile and preferably at least two spaced-apart sliding pieces and is held detachably with the sliding piece (s) lying against the guide profiles and secured against tilting relative to the guide beam, and that the guide beam has two spaced-apart and parallel clamping profiles for clamping fixing of the guide bar on a mounting device of the base and / or a tool.

The tool stand according to the invention has a function bar with two guide profiles which are spaced apart and parallel to one another. The guide profiles preferably protrude from one and the same side of the guide bar and guide the slide chute over slide pieces arranged thereon. The slide carriage has at least one slide piece and preferably at least two slide pieces spaced apart from one another for each guide rail; the slide is thus mounted on the guide beam via two or four slide bearings arranged in one and the same plane. Furthermore, the sliding carriage is detachably secured to the guide bar. In addition to the guide profiles, the guide bar also has two parallel clamping profiles, to which a holding device can be fastened by clamping. The guide bar can be fixed to the base via the clamping profiles. To further hold the guide bar on the base, a tension strut which can be subjected to tension is advantageously arranged between them and engages on the end of the guide bar facing away from the base.

A feature of the guide bar of the tool stand according to the invention is that the rear side of the guide bar can be fastened to a holding device via the clamping profiles, which is mechanically coupled to a sliding carriage which is in turn slidably mounted on another guide bar . Tool stands can thus be put together with a plurality of guide beams which can be moved relative to one another (rotatable, pivoted and displaced) in order to obtain a tool stand which is adapted to the respective requirements with regard to the rock to be processed. In this way, an modular tool stand is created. The basic construction of the tool stand with base and at least one guide bar projecting therefrom is always retained; can be attached to this basic tool stand construction. On the guide bar or bars of the tool stand according to the invention, further units, for example a stone drill or a stone saw, can be used for coupling elements via the clamping profiles as well as via the guide profiles Connect two guide beams and the like. be attached. The tool stand according to the invention is therefore versatile.

In an advantageous development of the invention, at least two guide beams movable relative to one another are provided, each with at least one sliding carriage, the two guide beams being mechanically coupled to one another via an intermediate piece between the two sliding chutes. The intermediate piece can be designed as a rigid connection or as a swivel joint. In this way, for example, a tool stand can be created, on the guide beam connected to the base of which a first sliding chute is arranged, which is connected to a second sliding carriage via an intermediate piece designed as a swivel joint. The second slide is slidably mounted on the guide profiles of a second guide beam. The mounting device of a stone saw can be attached to this second guide beam, to be precise at one of the two ends of the second guide beam. The stone saw can thus be rotated through 360 ° relative to the first guide beam and can also be moved longitudinally. A tool stand constructed in this way is also suitable for deep hole sawing.

According to an advantageous further development of the invention, the guide bar or bars of the tool stand according to the invention have a one-piece bar core on which the guide profiles and the clamping profiles are integrally formed. The guide profiles are arranged on a common side of the beam core. The two guide profiles preferably protrude from the beam core and are V-shaped in cross section educated. The two V-shaped recesses are aligned parallel to each other. The sliding pieces of the sliding carriage run or slide in the V-shaped recesses. The sliders, the shape of which corresponds to the negative shape of the V-shaped recesses in the guide profiles, prevent the slide from moving transversely to the direction of displacement.

As already mentioned above, the sliding carriage is detachably mounted on the guide beam. With slide pieces immersed in the V-shaped recesses, the slide slide on the guide bar can be secured against unintentional removal. For this purpose, the sliding carriage has sliding bodies in addition to the sliding pieces, preferably in the form of rotatably mounted rollers. These roles laterally encompass the two facing outer legs of the V-shaped guide profiles. In this embodiment of the guide beam, the outer legs of the guide profiles are laterally above the beam core, so that the sliding pieces rest on one side surface of the outer legs and the sliding bodies rest on the other (outer) surface of the outer legs. The two surfaces of the outer legs advantageously run parallel to one another. The sliding carriage can be removed from the guide bar by disengaging the sliding bodies from the outer legs.

Just as the guide profiles protrude laterally and at the front of the beam core, the two clamping profiles also protrude from the beam core. The clamping profiles are thus exposed and can be gripped laterally by clamping elements of the holding device and thus the guide bar can be fixed in a clamping manner. The beam core preferably has an essentially rectangular structure, on the four edges of which the guide and the clamping profiles run. The entire guide beam is advantageously an extruded profile made of light metal, which has internal cavities and internal struts. Also in the area of the guide and hollow profiles, the guide bar is provided with cavities which penetrate in the longitudinal direction. The inner struts give the hollow profile of the guide beam maximum rigidity in terms of deflection and torsion with minimum weight. These properties are advantageous in the case when a tool stand is assembled with a plurality of guide beams which can be rotated and displaced relative to one another.

As can be seen from the above description, the possibilities of combining and connecting a plurality of guide beams via slide carriages with holding devices for guide beams to be attached to the slide carriages are diverse. In general terms, the invention provides a tool stand assembly that is provided with:

at least one base, at least one first guide bar held on the base, which has at least one clamping profile on a first side and at least one guide profile on a second side,

- One arranged on the at least one first guide bar and along the at least one

Guide profile slidably guided slide and

- A mounting device on the slide for holding a tool, in particular a stone drill or stone saw tool,

- or for holding a second guide bar that is similar to the at least one first guide bar, a sliding chute being arranged to be displaceably guided along the guide profile on the second guide bar, and this sliding carriage with a holding device for holding a tool, in particular a stone drill or a stone saw

Tool, is provided

- or for holding a third guide bar which is identical to the at least one first guide bar and the second guide bar or for holding a second sliding carriage which in turn is slidably guided on a second guide bar which is similar to the at least one first guide bar, the second guide bar being a tool , in particular a stone drill or a stone saw tool.

This tool stand or its components, base, guide beam and sliding chute with holders can be put together to form the arrangements specified in the claims, in particular according to claim 2 and claim 9 to claim 12.

It is advantageous if the holding device of each sliding carriage can be rotated relative to the latter, wherein it is additionally expedient if the holding device of a sliding carriage engages to clamp its guide profile in order to hold a guide beam. Exemplary embodiments of the invention are explained in more detail below with the aid of the figures. In detail:

Fig. 1 and 2 a first embodiment of a tool stand for a core stone drill with a single guide beam attached to a base in a side view and a top view,

3 is a view with the tool stand cut along the plane III-III of FIG. 1,

4 and 5 a second embodiment of a tool stand with a double guide bar and a further sliding guide bar holding a stone saw, in side view and top view,

6 shows a front view of the tool stand according to FIG. 4 in the direction of arrow VI with a stone saw rotated relative to the double guide beam construction and

7 shows a further exemplary embodiment of a tool stand with two bases each carrying a vertical guide bar and a horizontal guide bar slidably held on these vertical guide bars, which in turn carries a displaceable guide bar with a stone saw attached to it. In Figs. 1 and 2 show a first embodiment of a tool stand for a core stone drill in side view and in plan view. The tool stand 10 has a frame-like base 12 made of light metal, which rests on the floor 16 via feet 14 and is anchored there. The base 12 carries a vertical guide beam 18, which with its lower end facing the floor 16 is immersed in a recess 20 in the base 12 and is fixed there by clamping. A support strut 24 is arranged between the upper end 22 of the vertical guide bar 18 and the rear end of the base 12 facing away from the guide bar 18. On the front side 26 facing away from the support strut 24, the vertical guide bar 18 carries a sliding carriage 28. The sliding carriage 28 is slidably held on the vertical guide bar 18 on the front side 26 thereof. By manually turning a crank handle 30 on the slide 28, a gear 29 rotatably mounted on the slide 28 can be rotated by hand, which meshes with a rack 31. The toothed rack 31 is fastened on the front side 26 of the vertical guide beam 18 (see FIG. 3). When the hand crank 30 is rotated, the slide 28 can therefore be displaced relative to the vertical guide bar 18. By locking the hand crank 30, the slide 28 is fixed relative to the guide bar 18.

The core stone drilling machine 32, which has a hydraulic motor 34, a gear 36 and a core drill 38, is mounted on the sliding carriage 28. A rigid intermediate piece 40 is arranged between the gear 36 and the slide 28, via which the core-stone drilling machine 32 is connected to the slide 28 is. To connect the intermediate piece 40 to the sliding carriage 28, the latter has a conical dovetail recess 41 (FIG. 3).

3, the construction of the guide bar 18, the connection of the sliding carriage 28 with the guide bar 18 and the clamping fixing of the guide bar 18 on the base 12 will be described below.

The guide beam 18 is designed as a hollow profile 42 with inner struts 44 or inner walls 44. The hollow profile 42 is a light metal profile produced by the extrusion process. Between the individual inner walls 44, cavities 46 are formed in the longitudinal direction of the guide bar 18 through the latter. The guide bar 18 has a bar core 48, which is indicated in FIG. 3 by dashed lines. The beam core 48 is surrounded by four integrally molded profiles, which are arranged similarly to the edges of a square profile. The two hollow profiles arranged on the front side 26 of the guide bar 18 are two guide profiles 50, over which the slide chute 28 is guided on the guide bar 18. The two other hollow profiles are two clamping profiles 52, by means of which the guide beam 18 is fixed to the base 12 in a clamping manner or can be attached and fixed to the guide beam 18 by means of corresponding clamping holding devices. Both the guide profiles 50 and the clamping profiles 52 are integrally connected to the beam core 48; the hollow profile of the beam core 48 and the guide and clamping profiles 50, 52 are integral component of the guide beam 18. While the guide profiles 50 are arranged on the front side 26 of the guide beam 18, the clamping profiles are located on the rear side 54 of the guide beam 18 facing away from the front side 26.

As can be seen in FIG. 3, the guide profiles 50 each have a V shape in cross section. Each guide profile 50 consists of two legs 56, 57, which run at an obtuse angle to one another or stand on one another. The V-shaped recesses 60 delimited by the inner surfaces 58 of the legs 56 are open with respect to the guide beam 18 for the sliding carriage 28. At least four sliding pieces 62 are immersed in these V-shaped recesses 60 of the guide profiles 50, which have a cross section complementary to the V-shaped recess 60. The sliding pieces 62 are screwed onto the underside of the sliding carriage 28 facing the front side 26 of the guide beam 18.

The arrangement of the guide profiles 50 relative to the beam core 48 is such that the outer legs 56 facing away from one another project laterally over the beam core 48, while a recess 64 is formed in the front 26 between the mutually facing inner legs 57.

Sliding bodies in the form of rotatable rollers 66 rest on the underside of the laterally projecting outer legs 56. The circumferential surfaces of the rollers 66 lie against the outer surface 68 of the outer legs 56, which run parallel to the inner surfaces 58 of the outer legs 56. The axes of rotation 67 of the rollers 66 run parallel to the outer surface 68 and the rollers 66 are supported on flanges 70 arranged laterally to the outer legs 56. The flanges 70 protrude on both longitudinal sides of the guide beam 18 and are connected to a light metal plate 72 spanning the front side 26 of the guide beam 18. The sliders 62 are screwed onto the light metal plate 72. The rollers 66 are rotatably mounted on roller holders 74, which are guided in sleeves 76 in the direction of the axis of rotation of the rollers 66. The sleeves 76 are connected to the flanges 70. By moving the rollers 66 away from the guide bar 18, the rollers 66 disengage from the outer surfaces of the outer legs 56 of the guide profiles 50. In this state, the outer legs 56 do not engage behind, so that the sliding carriage 28 is placed on the guide bar 18 or by the latter can be removed.

As can also be seen in FIG. 3, the guide rail 18 is fixed in a clamping manner (at its lower end which is inserted in the base 12). For this purpose, the base 12 has two parallel cross struts 78, between which the guide rail 18 is arranged. One of the two cross struts 78 has a fixed hook-shaped projection 80 which surrounds and holds the one of the two clamping profiles 52 on the outside. A second hook-shaped projection 82 of the cross strut 78 is connected to the cross strut 78 via a screw 84. The second hook 82 is designed as a removable block which has an elongated hole 86 through which the screw 84 passes. With the screw 84 loosened, the hook-shaped projection block 82 can be moved away from the other hook-shaped projection 80; in this state the guide bar 18 can be inserted into the base 12, the fixed hook-shaped projection 80 encloses one of the two clamping profiles 52. The movable hook projection block 82 is then moved in the direction of the guide bar 18, enclosing the second clamping profile 52. In this enclosing position, the block 82 can be locked in place on the cross strut 78; by tightening the screw 84, a clamping force is exerted on the clamping profile 52 which is sufficient to hold the guide beam 18 on the base 12.

Due to the construction of the guide bar 18 as a hollow profile with inner walls 44 and inner cavities 46 and the guide profiles 50 and clamping profiles 52 arranged on the longitudinal edges, the guide bar 18 is extremely rigid in terms of deflections and / or torsions. The hollow profile guide beam 18 is constructed symmetrically to its central longitudinal plane 85. Both the two guide profiles 50 arranged symmetrically to plane 85 and the two clamping profiles 52 likewise arranged symmetrically to plane 85 are arranged in the transition areas between the front side 26 and the side surface of the beam core 48 and between the rear 54 and the side surface of the beam core 48 . The central longitudinal plane 85 also extends through the sliding carriage 28, which is also constructed symmetrically with respect to this plane.

In Figs. 4 and 5 are a side view and a plan view of a tool stand 86 according to a second exemplary embodiment. As far as possible, the parts of the tool stand 86 corresponding to the parts of the tool stand 10 are provided with the same reference numbers. In contrast to the tool stand 10 points the tool stand 86 has a base 88 which holds two vertical guide beams 18 in a clamped manner. The clamp connection corresponds to that according to FIG. 3. Each vertical guide bar 18 is provided with a slide 28 which is slidably held on the front side 26 of the guide bar 18 in question. The two sliding carriages 28 are connected to one another via a plate 90. A fixed spacer 92 is attached to the plate 90 as a spacer and is directed away from the guide beams 18. At the end of the intermediate piece 92, a further sliding carriage 28 'is rotatably fastened via a rotary bearing 94 and is slidably held on the front side 26 of a further guide beam 18'. The front side of the guide bar 18 'thus lies opposite the front sides 26 of the identical guide bar 18 of the base 88. On the rear side 54 of the individually arranged guide beam 18 ', the housing 96 of a stone circular saw 98 is fastened in a clamping manner to the clamping profiles 52. The stone circular saw 98 is attached to one end of the guide bar 18 '. With the in Figs. Tool stand 86 shown in FIGS. 4 and 5 can be sawed deep-hole by the guide bar 18 'holding the circular saw 98 holding a hand crank 30 being displaceable relative to the slide 28' in the direction of the double arrow 100 around which the circular saw 98 holding to insert the lower end of the guide beam 18 'into a previously drilled hole in the subsurface 16. In the process, the circular saw blade 102 cuts a column corresponding to its diameter into the subsurface 16. By turning the second crank handle 30, the double slide can be moved up and down in the direction of the double arrow 104 on the double guide bar 18 of the base 88. FIG. 6 shows the tool stand 86 in a position in which the guide bar 18 'holding the circular saw 98 is rotated relative to the double guide bar 18 of the base 88. In this way, slits produced by the circular saw blade 102 can be introduced into the rock or the concrete at any point along an arc line extending over 360 °.

The in Figs. Tool stands 86 shown in FIGS. 4 to 6 show the diversity of the modular system, which makes it possible to adapt tool stands for stone drills and stone saws from the basic elements of base, guide bar, slide with intermediate piece and / or pivot bearing and / or holding device for further slide and / or or to assemble guide bars.

A final example of the variety and possible combinations that can be realized with the above-mentioned basic elements of the tool stand is shown in FIG. 7. 7, the parts of the tool stand 10 according to FIGS. 1 and 2 corresponding parts see the same reference numerals. The tool stand 106 according to FIG. 7 has two bases 12 resting on the base 16, each of which holds a vertical guide bar 18 by clamping. The two bases 12 are arranged at a distance from one another, the vertical guide beams 18 running parallel to one another and their front sides 26 being aligned identically. Each vertical guide beam 18 is provided with a slide 28 of the type described above. The two sliding carriages 28 carry a further guide bar 18 ″, which is arranged horizontally. The front of this horizontal guide bar 18 ″ is aligned in the same way as the front sides of the vertical guide beams 18. The horizontal guide bar 18 '' in turn carries a slide 28 '' (not shown in FIG. 7) which is connected via a spacer element (also not shown in FIG. 7) to a further slide 28 'which is connected to another vertical 4 and 6, this vertical guide beam 18 'carries a stone circular saw 98 with a saw blade 102, specifically at the lower end of the vertical guide beam 7, the stone saw 98 can be moved longitudinally on the horizontal guide bar 18 ″ and thus moved horizontally along the base 16, as well as by sliding along the vertical guide bar 18 ′ and / or additionally move vertically by moving the horizontal guide bar 18 'along the two vertical guide bars 18 held on the bases 12, for example in order to to work as a deep hole saw.

Claims

EXPECTATIONS

Tool stand, especially for stone drills or stone saws, with

- at least one base (12),

- at least one guide bar (18) connected to the base (12) and a sliding carriage (28) which can be displaced on the at least one guide bar (18), that is, which means that,

- that the guide bar (18) has two mutually spaced and mutually parallel guide profiles (50), against which sliding pieces (62) of the sliding block (28) rest slidingly,

- That the sliding carriage (28) per guide profile (50) has at least one sliding piece (62), preferably at least two spaced-apart sliding pieces (62) and with the sliding piece (s) (62) against and against the guide profiles (50) Tilting is secured and removable relative to the guide bar (18)

- That the guide bar (18) has two mutually spaced and mutually parallel clamping profiles (52) for clamping fixing of the guide bar (18) on a mounting device (78-84) of the base (12) and / or a tool .

Tool stand according to claim 1, characterized gekenn¬ characterized in that at least two relatively movable guide beams (18) are provided, each with at least one slide carriage (28) and that the two slide carriages (28) over one Intermediate piece (92) are mechanically coupled to one another.

3. Tool stand according to claim 1 or 2, characterized in that the guide beam (18) has a one-piece beam core (48) with which the two guide profiles (50) are integrally connected, and that the guide profiles (50) to a common side ( 26) of the beam core (48) are arranged.

4. Tool stand according to claim 3, characterized gekenn¬ characterized in that the two guide profiles (50) from the beam core (48) are arranged projecting and have a cross-sectionally V-shaped structure, the V-shaped recesses (60) the sliding carriage (28) slidable on the guide profiles (50) are open and the sliding pieces (62) of the sliding carriage (28) are immersed in the V-shaped recesses (60).

5. Tool stand according to claim 4, characterized gekenn¬ characterized in that the two mutually facing outer legs (56) of the V-shaped guide profiles (50) protrude laterally over the beam core (48) and that on the slide (28) sliding body (66) arranged are, the sliders (62) and the sliders (66) abut on both sides of the outer legs (56) of the V-shaped guide profiles (50).

6. Tool stand according to one of claims 1 to 5, characterized in that the clamping profiles (52) are integrally connected to the beam core (48) and protrude laterally over this and that the mounting device (78-84) can be braced with the two clamping profiles (52).

7. Tool stand according to claim 5 and 6, characterized ge indicates that the guide profiles (50) and the gill profiles (52) are arranged symmetrically to a central longitudinal plane of the guide beam (18) extending through the slide chutes (28) and are on the four transition areas between the front surface (26) and the side surface and the side surface and the rear surface (54) of the guide bar (18).

8. Tool stand according to one of claims 3 to 7, characterized in that the beam core (48) is formed as a hollow profile with inner struts (44).

9. Tool stand according to one of claims 2 to 8, characterized in that two bases (12), each with a guide bar (18) are arranged at a distance from one another, with a slide (28) being guided on each guide bar (18) is that a holder device is mechanically coupled to each slide carriage (28) and that a further guide beam (18 '') is clamped to the two holder devices via its clamping profiles (52), with the further guide beam (18 '') in turn a sliding carriage (28) with a holding device for a tool is displaceably guided. 10. Tool stand according to claim 9, characterized gekenn¬ characterized in that an additional guide bar (18 ') is slidably mounted on the slide (28) of the white guide bar (18'') which carries a tool (98).

11. Tool stand according to one of claims 2 to 8, characterized in that a base (88) is provided with two parallel to each other and side by side and with the base (88) connected Füh¬ guide bar (18), each Füh¬ rungsbalken (18) a slide (28) is assigned, and that the two slide (28) are mechanically coupled to each other and together with a holding device for a tool.

12. Tool stand according to claim 11, characterized gekenn¬ characterized in that the two coupled sliding carriages (28) are coupled to a further sliding carriage (28) on which a further guide bar (18 ') on the guide profiles (50) slidably guided , this further guide bar (18 ') carrying a tool (98).

13. Tool stand, especially for stone drills and stone saws, with

- at least one base (12),

at least one first guide bar (18) held on the base (12), which has at least one clamping profile (52) on a first side and at least one guide profile (50) on a second side, - A sliding carriage (28) arranged on the at least one first guide beam (18) and slidably guided along the at least one guide profile (50)

- A mounting device on the slide (28)

for holding a tool, in particular a stone drill or stone saw tool,

- or for holding a second guide bar (18 '; 18' ') which is the same as the at least one first guide bar (18), a sliding carriage (28) along the guide profile on the second guide bar (18'; 18 '') (50) is arranged so as to be displaceable and this sliding carriage (28) with a holding device for holding a tool, in particular a stone drill or stone sawing tool, or for holding one of the at least one first guide bar (18) and the second guide bar ( 18 '; 18' ') is the same as the third guide bar (18'),

- or for holding a second slide (28 '), which in turn is slidably guided on a second guide bar (18'; 18 '') which is the same as the at least one first guide bar (18), the second guide bar (18 ') being inserted Tool, especially a stone drill or a stone saw tool, carries.

14. Tool stand according to claim 13, characterized gekenn¬ characterized in that the holding device each slide (28) can be rotated relative to it.

15. Tool stand according to claim 13 or 14, characterized in that the holding device of a sliding carriage (28) for holding a guide bar (18 '; 18' ') engages clampingly on its clamping profile.