EP0448965A2 - Support pour perceuse - Google Patents

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Publication number
EP0448965A2
EP0448965A2 EP91102748A EP91102748A EP0448965A2 EP 0448965 A2 EP0448965 A2 EP 0448965A2 EP 91102748 A EP91102748 A EP 91102748A EP 91102748 A EP91102748 A EP 91102748A EP 0448965 A2 EP0448965 A2 EP 0448965A2
Authority
EP
European Patent Office
Prior art keywords
tripod
drilling machine
profile
guide
machine according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP91102748A
Other languages
German (de)
English (en)
Other versions
EP0448965A3 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
C&E Fein GmbH and Co
Original Assignee
C&E Fein GmbH and Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by C&E Fein GmbH and Co filed Critical C&E Fein GmbH and Co
Publication of EP0448965A2 publication Critical patent/EP0448965A2/fr
Publication of EP0448965A3 publication Critical patent/EP0448965A3/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25H—WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
    • B25H1/00—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby
    • B25H1/0021—Stands, supports or guiding devices for positioning portable tools or for securing them to the work
    • B25H1/0042—Stands

Definitions

  • the invention relates to a tripod drilling machine with a tripod, a drilling device comprising a motor and a drill bit and a guide for moving the drilling device on the tripod.
  • a tripod drilling machine of the type mentioned above is known from EP-OS 175 643.
  • a guide column is arranged on a base plate, which consists of two supports arranged at intervals from one another and running parallel to one another.
  • the supports are designed as continuous cast or extruded profiles made of light metal. They are mirror-symmetrical to one another with respect to a vertical plane and have an essentially L-shaped shape in horizontal section, wherein together they form essentially a U-shaped structure in horizontal section.
  • the profile beams are solid and have dovetail-shaped extensions that serve as guides for counter profiles of a drilling machine. At their upper end, the profile beams are connected to one another by means of a continuous cover plate.
  • the profile carriers are also designed in a vertical direction as a toothed rack which cooperates with a drive pinion of the drilling device in order to enable vertical adjustment of the drilling device.
  • the known tripod drilling machine has the disadvantage that its tripod has a high weight if the profile supports are to have sufficient stability to absorb high bending moments. If, on the other hand, the profile supports are made lighter for reasons of weight, the mechanical stability of the stand is only guaranteed up to relatively low bending moments which are transmitted from the drilling device to the stand.
  • tripod drilling machine is used as intended as a rock drilling machine, which is used to drill through walls, for example of reinforced concrete walls in building construction or civil engineering.
  • the tripod In another known tripod drilling machine of a similar type, as is known from DE-OS 33 34 753, the tripod also has a U-shaped shape in horizontal section, but is designed as a one-piece profile. In this case too, guideways are formed on the profile support forming the stand in order to guide a drilling device in the vertical direction.
  • the invention is based on the object of developing a tripod drilling machine of the type mentioned in such a way that, even with a low weight of the tripod, a high degree of bending rigidity is achieved with respect to bending moments transmitted by the drill bit and that at the same time the guide elements on the tripod are easily accessible.
  • the stand is designed as an at least double-walled, one-piece honeycomb profile, the walls of which are continuous and spaced apart in the direction of the guide are connected to one another by means of webs which also pass in the direction of the guide.
  • the object on which the invention is based is completely achieved in this way because the honeycomb structure used for the profile carrier makes it possible to provide a tripod in a lightweight construction which also satisfies the highest demands on bending rigidity.
  • honeycomb profile is designed in a manner known per se as an extruded or extruded profile made of light metal.
  • the honeycomb profile is L-shaped in a direction perpendicular to the direction of the guide and the guide is preferably arranged approximately half the width of one leg of the L, there is the further advantage that the guide elements are easily accessible are because access to a leg of an L-shaped structure is much easier to achieve than access to the interior of a U-shaped profile beam.
  • the distance between the drill bit and the guide is also very short, so that only small moments act on the guide when the drill bit is loaded.
  • the guide comprises a profile rail which is fixedly connected to the stand and which projects in sections over the honeycomb profile.
  • a section of the profile rail enclosed by the honeycomb profile has a cuboid shape and passes through one of the walls via a narrow point, further preferably a section of the profile rail projecting above the honeycomb profile is designed as a dovetail, the end face of which extends inclined to the adjacent wall.
  • the features mentioned above have the advantage that a secure and rigid mounting of the profile rail on the honeycomb profile is possible without the need for complicated fastening devices.
  • the profile rail can in turn be guided in the guide direction by appropriate profiling of the honeycomb profile and consequently only needs to be pushed into the honeycomb profile in the guide direction and fixed there with simple fixing means.
  • a cavity for receiving electrical switching means is specified in the stand.
  • This measure has the advantage that, when the honeycomb profile is produced, the cavity required for accommodating the electrical switching means can be produced at the same time, without the need for further processing or assembly steps.
  • the cavity is arranged in the second leg of the L, this has the advantage that the first leg can be optimized in terms of statics in the vicinity of the guide, while the first leg only partially has a supporting function.
  • 10 designates a tripod drilling machine.
  • the tripod drilling machine 10 is preferably used for drilling holes in walls of buildings, in particular in reinforced concrete walls of buildings or civil engineering, for which purpose the drilling tool used is set with diamonds.
  • the drilling machine 10 comprises a stand 11 which is fastened in a manner known per se on a base plate parallel to the drawing plane of the figure.
  • a drilling device 14 consisting of motor 12 and drill bit 13 can be guided on the stand 11.
  • the drill bit 13 is preferably structurally combined with a gear of the machine 10.
  • the stand 11 is, as the figure clearly shows, in a horizontal section of an L-shaped shape.
  • the stand 11 comprises a first leg 20 and a second leg 21.
  • the first leg 20 essentially consists of a cuboid section 22, which can preferably be closed by means of a releasable rear wall 23.
  • a front wall 24 runs parallel to the rear wall 23 and merges into a double-walled section 25 at the lower end in the figure.
  • webs 26 and 27 run from the front wall 24 to an intermediate wall 28 which runs essentially parallel to the walls 23 and 24.
  • the front wall 24, the webs 26 and 27 and the intermediate wall 28 are integrally formed with one another and run perpendicular to the plane of the drawing from the upper to the lower end of the stand 11.
  • the cuboid section 22 has a cavity 65 which is accessible via the detachable wall 23.
  • the cavity 65 preferably serves to receive electrical or electronic switching means, which are indicated by 66 in the figure.
  • the mechanical stability of the first leg 20 is represented by the double-walled section 25 while the cuboid section 22 has no supporting function.
  • the double-walled section 25 with the front wall 24 and intermediate wall 28 bends downward to the right and merges into an approximately quarter-cylindrical section 30, which at the same time forms the transition to the second leg 21.
  • the second leg 21 then essentially comprises a straight section 31, which in turn is adjoined by a section 32 which is slightly angled upward at the right end in the figure.
  • the straight section 31 is also double-walled with a rear wall 33 and a parallel front wall 34.
  • the walls 33 and 34 are connected to one another via webs 35, 36, 37, 38, 39 and 40, the web 40 forming the right end of the angled section 32 in the figure and thus of the second leg 21.
  • the webs 26, 27 and 35 to 40 each run either at right angles or at an angle of more than 45 ° to the rear or front walls 23, 24 or 33, 34 connected by them.
  • a first guide 50 is integrated on the upper side in the figure.
  • the first guide 50 consists essentially of a fixed, solid profile rail 51, which has a rectangular section 52 on its lower side in the figure and a constriction 53 adjoining it at the top.
  • the section 52 and the constriction 53 are adapted to corresponding extensions of the webs 37, 38 and the front wall 34, so that the profile rail 51 is inserted perpendicularly to the plane of the figure from above or below into the complementary receptacle on the straight section 31 and there by means of holding means not shown in the figure can be fixed.
  • the profile rail 51 ends up in a dovetail 54, the upper end face 55 of which is slightly inclined relative to the direction of extension of the straight section 31.
  • the dovetail 54 is also held laterally on the outside of the front wall 34 in a recessed recess 56.
  • a counterpart 58 which is firmly connected to the drilling device 14, runs on the dovetail 54 with a positive fit.
  • the drilling device 14 can be raised or lowered perpendicular to the plane of the figure on the stand 11, for which purpose drive means which are not shown in the figure but are known per se are used.
  • a second guide 60 can be provided on the lower side of the straight section 31 in the figure, which is designed essentially like the first guide 50.
  • the various walls and webs shown in the figure thus form an L-shaped honeycomb profile, which is preferably produced as a continuous casting or extrusion from a light metal.
  • the first guide 50 is arranged approximately half the width of the second leg 21 of the L-shaped honeycomb profile and extends into the space encompassed by the L, there are particularly favorable conditions.
  • first guide 50 is particularly rigid against bending moments which are transmitted from the drill bit 13 to the stand 11 via the lever arm present between the drill bit 13 and the motor 12 or first guide 50.
  • honeycomb profile used and in particular the arrangement described with the various walls and webs achieves a particularly high bending stiffness.
  • the arrangement is also such that the elements of the drilling device 14 and the stand 11, in particular the elements the first guide 50, are also easily accessible, specifically from the front of the drilling device 14 indicated by an arrow 70.
  • honeycomb profile shown in the figure is a preferred embodiment, but can still be varied within the scope of the present invention, such as indicated with a shoulder 80, which can be provided on the first leg 20, but in the interest of good accessibility (arrow 70), however, preferably extends only over part of the height of the stand 11.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
EP19910102748 1990-03-22 1991-02-25 Stand for drilling machine Withdrawn EP0448965A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19904009241 DE4009241A1 (de) 1990-03-22 1990-03-22 Stativ-bohrmaschine
DE4009241 1990-03-22

Publications (2)

Publication Number Publication Date
EP0448965A2 true EP0448965A2 (fr) 1991-10-02
EP0448965A3 EP0448965A3 (en) 1992-03-04

Family

ID=6402833

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19910102748 Withdrawn EP0448965A3 (en) 1990-03-22 1991-02-25 Stand for drilling machine

Country Status (2)

Country Link
EP (1) EP0448965A3 (fr)
DE (1) DE4009241A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997026754A1 (fr) * 1996-01-17 1997-07-24 Linotype-Hell Ag Support extrude pour composants de selecteur electronique a tambour

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9204693U1 (de) * 1992-04-04 1992-06-25 Maschinenbau Meißner GmbH, 5250 Engelskirchen Werkzeugständer, insbesondere für Steinbohrer und Steinsägen

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8026231U1 (de) * 1980-10-01 1982-03-18 Ibs Brocke Gmbh & Co Kg, 5222 Morsbach Bohrstaender fuer bohrmaschinen
DE8227693U1 (de) * 1982-10-02 1985-02-21 Robert Bosch Gmbh, 7000 Stuttgart Einrichtung zum Längsverschieben von Handhabungseinheiten der industriellen Fertigung
DE8300450U1 (de) * 1983-01-10 1984-05-17 Maier & Co, Hallein Bausatz für Kleinwerkzeugmaschinen
DE3334753A1 (de) * 1983-09-26 1985-06-27 Hilti Ag, Schaan Stativbohrvorrichtung
DE3434075A1 (de) * 1984-09-17 1986-03-27 Hilti Ag, Schaan Stativbohrvorrichtung mit fuehrungssaeule
DE8908272U1 (de) * 1989-07-07 1989-08-17 Protech Automation GmbH, 5000 Köln Tragsäule für eine Bearbeitungsstation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997026754A1 (fr) * 1996-01-17 1997-07-24 Linotype-Hell Ag Support extrude pour composants de selecteur electronique a tambour

Also Published As

Publication number Publication date
DE4009241A1 (de) 1991-09-26
DE4009241C2 (fr) 1992-01-16
EP0448965A3 (en) 1992-03-04

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