WO2000029149A2 - Dispositif de guidage pour un outil de coupe, en particulier d'une perceuse a main - Google Patents

Dispositif de guidage pour un outil de coupe, en particulier d'une perceuse a main Download PDF

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Publication number
WO2000029149A2
WO2000029149A2 PCT/CH1999/000546 CH9900546W WO0029149A2 WO 2000029149 A2 WO2000029149 A2 WO 2000029149A2 CH 9900546 W CH9900546 W CH 9900546W WO 0029149 A2 WO0029149 A2 WO 0029149A2
Authority
WO
WIPO (PCT)
Prior art keywords
cutting tool
guide device
guide
outer tube
base
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.)
Ceased
Application number
PCT/CH1999/000546
Other languages
German (de)
English (en)
Other versions
WO2000029149A3 (fr
Inventor
George Val
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to AU11456/00A priority Critical patent/AU1145600A/en
Publication of WO2000029149A2 publication Critical patent/WO2000029149A2/fr
Publication of WO2000029149A3 publication Critical patent/WO2000029149A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • B25H1/0057—Devices for securing hand tools to the work
    • B25H1/0064—Stands attached to the workpiece

Definitions

  • the invention relates to a guide device for a cutting tool, in particular a hand drill, according to the preamble of claim 1.
  • bores In the manufacture of larger diameter bores, particularly in exposed, hard-to-reach places, these holes have hitherto generally been welded or made using several smaller bores made side by side.
  • Such bores are provided, for example, on steel girders on roofs or on steel columns or the like, on sheet metal walls or the like, in which such bores can only be produced with the aid of a mobile hand drill or a mobile welding system.
  • the present invention was based on the object of providing a guide device and a cutting tool by means of which large-diameter bores, for example a diameter between approximately 25 and 150 mm, can be produced simply, quickly and reliably in the case of workpieces which are difficult to access, even with proportionate thin-walled workpieces, such as sheet metal.
  • the guide device With this guide device according to the invention, it is possible to produce bores with a large diameter in one operation and this without great effort.
  • the guide device also enables the guide area of the guide column to be extended to the entire stroke area of the cutting tool and, as a result, the tool to be extended of the entire operation and in particular when the cutout is breached axially safely.
  • the guide device according to the invention is particularly suitable for the production of bores in workpieces which can only be carried out with a hand drill. This results in a mobile drilling unit that can also be used in areas of the workpiece that are difficult to access, such as the corner areas. In addition, larger diameter bores can be produced without problems even with relatively thin workpieces.
  • the guide column can be provided with sliding rings at the interlocking ends of the sliding sleeve and the outer tube. In this way, the friction-generating contact zones between the sliding sleeve and the outer tube are reduced to two very small areas without impairing the guiding security and accuracy.
  • the actuating lever in the knee area is provided with a pivot pin which is displaceably mounted in a longitudinal slot of the console, while in another embodiment the actuating lever in the knee area is articulated on one end of a swivel bracket, the other end pivotally mounted on the console.
  • the guide device according to the invention ensures precise and safe guidance of the drilling and circular cutting tool during the entire working step, it is possible with such a guide device to use flexible slot cutting steels according to the invention with a cross-sectional width between 1.5 and 3.5 mm, which is considerable brings manufacturing advantages.
  • FIG. 3 is a view in the direction of arrow III in Fig. 1 with another embodiment of the operating lever
  • FIG. 5 shows a longitudinal section of an embodiment of a telescopic column
  • Fig. 6 shows a detail of the guide device according to Fig. 1 with a further embodiment of the actuating lever.
  • the guide device shown in Figures 1 to 3 has a base 1, which rests with a support surface 2 on a workpiece 3.
  • a support arm 5 is arranged on a lateral web 4 above the base 1.
  • This in turn has an axial guide bearing 6 for a cutting tool 7 and an opening 8 for the contact-free passage of a guide column 9 arranged axially parallel to these tools.
  • the guide bearing 6 and the opening 8 are arranged in the support arm 5 lying on one level.
  • the cutting tool 7 is equipped with a drill 10 arranged concentrically to the axis of rotation and, according to the invention, with a circular cutting tool 11 set back in the cutting direction and designed as a slot cutting steel, the latter executing a circular cutting movement during operation and consequently producing a disk-shaped cutout in the workpiece 3.
  • the cutting tool 7 is inserted via a spindle shaft 10 'in the chuck 12 of a hand drill 13 with a shaft 14.
  • the guide column 9 is designed as a telescopic column. It consists of a sliding sleeve 21 fastened on the base 1 and an outer tube 16 which is displaceable thereon and which is guided on the one hand in the guide sleeve 8 above the base 1 and on the other hand with which the cutting tool 7 is The shaft 14 of the hand drill 13 is connected.
  • a clamping bracket 17 with a clamping screw 18, which can be rotated by means of a handle 19, serves as the connecting element.
  • the lower end of the sliding sleeve 21 is fastened to the base 1 by means of a screw 20.
  • sliding rings 22 23 are provided at the interlocking ends of the sliding sleeve 21 and the outer tube 16.
  • the outer tube 16 could be shaped such that it slides directly on the sliding sleeve 21.
  • the outer tube 16 is provided with a lifting scale 24 and a stop ring 25 which is displaceably adjustable thereon and which can be stopped against the guide sleeve 8 for the outer tube 16 of the guide column 9.
  • the displaceability of the outer tube 16 is limited by a stop surface 26 of the base 1 serving as a stop for the outer tube 16, the length of the sliding sleeve 21 and the outer tube 16 being dimensioned such that when the outer tube 16 is in abutment, the end of the base tube 1 facing away from the base 1 Sliding sleeve 21 does not protrude from the outer tube 16.
  • the guide device also has an actuating lever 27 designed as a toggle lever, which is pivotably mounted in the knee area 28 in a bracket 29 resting on the base 1 and on the lateral web 4 and the one lever arm 30 of which is provided at the end with a handle 31, while the other lever arm 32 is approximately is articulated centrally on the clamping bracket 17.
  • the actuating lever 27 is fastened in the knee area 28 to a pivot pin 33 which is slidably mounted in a longitudinal slot 34 in the bracket 29.
  • the actuating lever 27 consists of two individual levers opposite each other of the clamping bracket 17, which in the embodiment according to FIG. 1 are one-piece toggle levers.
  • a handle 51 attached to the lever arm 30, on which a coolant device can preferably be attached as a spray can 50.
  • the upper part of this spray can 50 is included a push button 52 and an outgoing hose 53 shown.
  • This hose 53 is preferably guided up to the cutting tool 7. This enables optimum operability, because a user can simultaneously use this index button of his hand with which he operates the actuating lever 27 for the tool feed, this pushbutton 52 and, if necessary, a coolant used as an emulsion or the like in the cutting groove formed in the workpiece 3 in the exact position inject.
  • the actuating lever 27 has a single lever 35, 36, which are non-rotatably connected with the pivot pin 33 at an angle to a further one-armed single lever 37 with the handle 31.
  • the actuating lever 27 is equipped at the articulation point with the clamping bracket 17 with a friction brake 41 which can be adjusted by means of a tensioning screw 18 such that the section modulus when the actuating lever is pivoted can be adjusted as required.
  • the actuating lever 27 moves in the feed direction of the tool 7 against the hand drill 13 and after the puncture it is advantageously located directly next to the drill. This arrangement enables a gentle, soulful feed force, which prevents the circular cutting tool from breaking prematurely.
  • FIG 4 shows a variant of a guide bearing 6 'which supports the cutting tool 7 and which is fastened in a semicircular recess 55 in the support arm 5' by means of screws 56 or the like.
  • the cutting tool 7 is guided in an eccentric cylindrical opening 52 in this guide bearing 6 '. From this, an adjustment of the cutting tool 7 can be made to the base attached to the workpiece.
  • FIG. 5 shows a variant of a telescopic column 9 'which, like that according to FIG. 1, consists of a sliding sleeve 21' standing on the base 1 and an outer tube 16 'adjustable in height on the latter.
  • the outer tube 16 ' is tapered at the lower end, so that it is guided on the sliding sleeve 21'.
  • a roller bearing 59 preferably a needle bearing, forms the guide of the outer tube 16 'at the upper end of the sliding sleeve 21'.
  • the actuating lever 27 is articulated in the knee area 28 to one end 38 of a swivel bracket 39, the other end 40 of which is pivotably mounted on the bracket 29.
  • the console 29 is attached to the base 1 in a height-adjustable manner. The attachment is carried out by screws 42, which are each guided in a longitudinal slot 43 of the bracket 29 and are screwed onto the base 1 in the lateral web 4.
  • Both the base 1 and the height-adjustable console 29 can be attached to the workpiece or to a work table or the like. by means of screw clamps, clamping elements and. Like. Be attached. It is advisable to use a suitable position gauge.
  • the console 29 is advantageously designed as an angle iron.
  • a position gauge which is also angled, can be screwed onto this before the base 1 is fastened, by means of which the center of the hole to be cut is fixed to the angle iron and the latter is subsequently fixed to the workpiece. This position gauge can then be removed and the base of the guide device can be attached instead.
  • the described guide device ensures precise and safe guidance of the drilling and circular cutting tool during the entire working step, it is possible with it to use a slot cutting steel with a cross-sectional width 1 1 'of between 1.5 and 3.5 mm as the circular cutting tool 11 use, which has considerable advantages in terms of production technology due to its narrow cross-section and the associated flexibility.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling And Boring (AREA)

Abstract

L'invention concerne un dispositif de guidage pour un outil de coupe d'une perceuse à main, qui comporte un socle (1) pouvant être fixé, un palier de guidage axial (6) pour l'outil de coupe (7) et une colonne de guidage (9) guidée de façon à pouvoir être déplacée parallèlement à l'axe du palier de guidage (6), dont une extrémité peut être reliée à la tige (14) de la perceuse à main portant l'outil de coupe (7). La colonne de guidage (9), qui se présente sous la forme d'une colonne télescopique, comporte un manchon de coulissement (21) fixé sur le socle (1) et un tube extérieur (16) guidé sur celui-ci de façon à pouvoir se déplacer, ces éléments pouvant être intervertis. Le tube extérieur (16) peut être relié avec la tige (14) de la perceuse à main (13) portant l'outil de coupe (7). L'outil de coupe (7) est constitué d'un foret (10) et d'un outil de coupe circulaire (11) qui produit, lors de l'usinage de la pièce, une rainure annulaire. On peut donc effectuer des perçages d'un grand diamètre facilement et rapidement, en particulier en des emplacements d'un accès difficile.
PCT/CH1999/000546 1998-11-17 1999-11-17 Dispositif de guidage pour un outil de coupe, en particulier d'une perceuse a main Ceased WO2000029149A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU11456/00A AU1145600A (en) 1998-11-17 1999-11-17 Guide device for a cutting device, especially of a portable drill

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH230398 1998-11-17
CH2303/98 1998-11-17

Publications (2)

Publication Number Publication Date
WO2000029149A2 true WO2000029149A2 (fr) 2000-05-25
WO2000029149A3 WO2000029149A3 (fr) 2000-08-17

Family

ID=4230647

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CH1999/000546 Ceased WO2000029149A2 (fr) 1998-11-17 1999-11-17 Dispositif de guidage pour un outil de coupe, en particulier d'une perceuse a main

Country Status (2)

Country Link
AU (1) AU1145600A (fr)
WO (1) WO2000029149A2 (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2477916A (en) * 1946-10-01 1949-08-02 Black & Decker Mfg Co Bench drill stand
US3293953A (en) * 1964-04-24 1966-12-27 Galesburg Mfg Co Inc Drill bushing feed device
CH458017A (de) * 1965-12-24 1968-06-15 Val George Kreisschneider
DE7837193U1 (de) * 1978-12-15 1979-04-05 Joecker, Eduard, 5600 Wuppertal Werkzeug zum lochen von fliesen o.dgl.
US4923341A (en) * 1989-09-22 1990-05-08 Cameron James D Portable drill guide

Also Published As

Publication number Publication date
WO2000029149A3 (fr) 2000-08-17
AU1145600A (en) 2000-06-05

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