EP0785853A1 - Outil a degorger - Google Patents

Outil a degorger

Info

Publication number
EP0785853A1
EP0785853A1 EP95934665A EP95934665A EP0785853A1 EP 0785853 A1 EP0785853 A1 EP 0785853A1 EP 95934665 A EP95934665 A EP 95934665A EP 95934665 A EP95934665 A EP 95934665A EP 0785853 A1 EP0785853 A1 EP 0785853A1
Authority
EP
European Patent Office
Prior art keywords
projections
disks
broaching tool
cutting
segment
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Withdrawn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
EP95934665A
Other languages
German (de)
English (en)
Inventor
Constantin Batschari
Herbert Mittländler
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
Publication of EP0785853A1 publication Critical patent/EP0785853A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D43/00—Broaching tools
    • B23D43/06—Broaching tools for cutting by rotational movement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/18—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by milling, e.g. channelling by means of milling tools

Definitions

  • the invention relates to a broaching tool, in particular for broaching or cutting slots, comprising a plurality of spaced disks rotatable about a common axis with circumferential segment-like cutting projections.
  • Cutting tools are known from the prior art which have a plurality of mutually spaced, hard metal milling disks with segment-like projections, the projections being evenly separated from one another by a radial slot around the circumference of each milling disk.
  • the present invention is based on the problem of developing a broaching tool of the type mentioned at the outset in such a way that slots can be cut or cleared with as little force as possible and in one operation.
  • the problem is essentially solved in that successive segment-like cutting projections of each disk are at a distance from one another which is at least approximately equal to or greater than the respective circumferential extent of the projection.
  • the segment-like projections of each disk are arranged at a distance or space from one another, the space including an angle ⁇ with respect to the axis in the circumferential direction which is at least approximately equal to or greater than an angle ⁇ , which is essentially a segment-like projection with respect to the axis in the circumferential direction.
  • the invention is also characterized in that successive segment-like projections of each disc have a spacing from one another which is at least approximately equal to or greater than the respective circumferential extent of the segment-like projections, and that projections of adjacent discs have a circumference ⁇ direction offset to each other or at least partially offset to each other.
  • each disc is arranged at a distance or space from one another, the space including an angle ⁇ with respect to the axis in the circumferential direction which is at least approximately equal to or greater than an angle ⁇ , which is essentially one in each case includes a segment-like projection with respect to the axis in the circumferential direction, and that the disks running next to one another are offset with respect to their projections in the circumferential direction.
  • the teaching according to the invention achieves a better cutting or broaching effect of the broaching tool.
  • the contact pressure can be reduced. So z. B. the effort of a broaching tool with seven disks arranged next to each other, each with four segments, the same as the effort of a cutting tool with two disks arranged in parallel, in which the segments are arranged evenly and closely behind one another along the circumference.
  • the spacing of the segments in the axial direction is due to the disks which are offset in the circumferential direction with respect to the projections can be greater than the distance between directly adjacent milling disks.
  • the joint walls created when the broaching tool penetrates the material can be broken by vibration of the adjacent panes and then conveyed out of the slot. This enables the cutting or clearing of a slot in one operation.
  • a special embodiment is characterized in that the disks are offset with respect to their projections in the circumferential direction so that viewed in the axial direction of the broaching tool, at least two segment-like projections overlap or even completely cover one another. This arrangement ensures that the broaching tool is at the same time with at least two segments in engagement with material to be cut or cleared.
  • the projections of the disks can be arranged offset to one another in the circumferential direction in such a way that the segment-like projections form a V-like wedge shape when the disks are developed in one plane.
  • the segments of adjacent disks are arranged in the circumferential direction without or largely without overlap with one another. This improves both the synchronous properties and the broaching capacities of the broaching tool.
  • the projections of a plurality of disks located next to one another and starting from a common axis can form a closed or largely closed circular ring in a side view of the broaching tool.
  • closed can mean that the circular ring has interruptions, preferably at regular intervals.
  • the disks are preferably of the same design, they can vary with respect to the length and / or the number of the projections, of course with the same effective radius otherwise.
  • a broaching tool with, for example, 5 or 7 disks can comprise two groups of different disks, with disks of different designs being formed one on top of the other.
  • the segments span planes which intersect a plane spanned by the disk at an angle which is preferably in the range between 0.5 * and 5 °.
  • each cutting projection or segment has a ramp-shaped course in the direction of rotation, the respective cutting surface at an angle ⁇ with 0.5 ⁇ ⁇ 5 °, preferably 1 ′′ ⁇ ⁇ 2 °, around the axis of rotation of the broaching tool can cut a circle.
  • the disks have a bore for receiving at least one centering pin.
  • the desired relative position of the disks relative to one another can thereby be fixed. Alignment of the panes to one another and their fixing can also be done by gluing and / or bracing.
  • the broaching tool is preferably designed as a tool set. This eliminates the need for the user to align the individual milling discs.
  • FIG. 1 is a plan view of a milling disk
  • FIG. 2 a broaching tool composed of milling disks according to FIG. 1 in
  • Fig. 3 is a development of the broach over 360 ° in one plane.
  • a disc (10) is shown in principle, which serves as an element for a broaching tool (12) designed as a tool set, the structure of which is explained in more detail in Fig. 2.
  • the disc (10) has a metallic, preferably lacquered disc-shaped base body (14), from the circumference (16) of which segment-like projections (18), (20), (22), (24) extend.
  • the circumferential projections (18), (20), (22), (24) are spaced apart from one another by spaces (26), (28), (30), (32) evenly over the circumference (16).
  • this is not a mandatory feature. Rather, the length of the segment-like projections and / or their spacing can vary in the circumferential direction.
  • the above segments (18), (20), (22), (24) are designed as supports for segment bodies (34), (36), (38), (40).
  • the segment bodies (34), (36), (38), (40) essentially consist of sintered metal with diamond grains and are connected to the segments or projections (18), (20), (22), (24) as laser welded.
  • the segment bodies have a width which is preferably greater than the width of the base body (14).
  • the segment body (40) shows that the cutting surface (41) rises in the circumferential direction, that is to say the segment body (40) has a ramp-shaped geometry.
  • the cutting height (41) of the segment body should be the same along the entire cutting surface (41), ie the length of the segment (40). 6
  • the cutting surface (41) preferably cuts a circle formed around the axis of rotation (33) at an angle ⁇ of 0.5 ° ⁇ ⁇ 5 °, in particular 1 ° ⁇ ⁇ 2 °.
  • notches (42) can be provided in order to reduce a notch effect in this area.
  • the disk (10) has an opening (48) for receiving a fixing pin (50), so that the relative position of the milling disks (10) relative to one another is ensured when the tool set (12) is in operation.
  • the panes can also be fixed to one another by tensioning, gluing or other measures.
  • Fig. 2 shows a side view of the broaching tool (12).
  • the broaching tool (12) essentially consists of the tool set holder (46) with a hollow shaft stub (47) on which the disks (10) are arranged at a distance d from one another.
  • circular intermediate elements (52) are inserted between the disks (10).
  • the distance d between the disks (10) can be in a range from 2 to 6 mm, preferably 4 mm.
  • the disks (10) themselves have a width b in a range of preferably 1.4 to 1.8 mm, in particular 1.6 mm.
  • One end face (54) of the hollow cylindrical shaft (47) has a plate-shaped end (56) which forms a T-shape with the shaft end (47) and serves as a stop for at least one disk (10).
  • the plate-shaped disk (56) preferably has an opening in its center for receiving a tool such as an Allen key in order to connect the tool set (12) to a drive (not shown).
  • the hollow shaft stub (47) has a thread (58) on the inside, as a result of which the tool set holder (47) can be fastened with a rotatable drive shaft of the machine tool, not shown.
  • 3 shows a development (60) of the broaching tool (12) over 360 ° in one plane.
  • the broaching tool (12) consists of a total of seven disks, the construction of which in the exemplary embodiment is identical to that of the disk (10), which was described with reference to FIG. 1.
  • the disks are arranged such that they are offset with respect to one another in the circumferential direction in such a way that segment bodies (34), (62), (64), (66), (68), (70), (72) of adjacent disks form a wedge shape.
  • the disks are arranged in such a way that at least two segment bodies overlap or at least overlap in the axial direction.
  • the disks are arranged offset from one another such that at least one front edge (78), (80) of an adjacent segment (62) is on an end edge (74) of a segment (34) lying in the running direction (76). , (64) follows. If necessary, there may be a distance between the front and end or rear edges which follow one another in the side view of the pane set.
  • the broaching tool (12) thus has four wedge-shaped arrangements (82), (84), (86), (88) on the circumference, a wedge shape extending over 120 ° in each case.
  • the segments (24), (36), (38), (40) forming a tip of the wedge shapes are arranged one behind the other in the circumferential direction at an angle of 90 °.
  • the wedge shapes (82), (84), (86), (88) are arranged in a nested manner, the segments forming the tip of the wedge shapes in the development (60) taking up the same angular position as the end segments (70), (72). a previous wedge shape (82).
  • the broaching tool can also run in the direction of the arrow (76).
  • the number and / or length of the projections can also vary from disk to disk.
  • outer disks can have more cutting projections than inner disks and vice versa.
  • Successive disks can also vary with respect to the number and / or length of the cutting projections.
  • the projections should be evenly distributed over the circumference of each disc.
  • the arrangement with seven disks shown in FIGS. 1 to 3 has proven to be particularly advantageous.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Milling, Broaching, Filing, Reaming, And Others (AREA)
  • Milling Processes (AREA)
  • Nonmetallic Welding Materials (AREA)

Abstract

Un outil à dégorger (12), utile notamment pour découper des gorges, comprend plusieurs disques (10) mutuellement espacés rotatifs autour d'un axe commun (33) et pourvus de segments de coupe en saillie (18, 20, 22, 24) sur leur circonférence. Afin de pouvoir découper des gorges en une seule opération en appliquant une force aussi réduite que possible, les segments successifs en saillie (18, 20, 22, 24) de chaque disque (10) sont mutuellement écartés d'une distance (26, 28, 30, 32) au moins égale ou supérieure à l'extension des segments en saillie dans le sens de la circonférence des disques, et les segments en saillie de disques adjacents (10) sont mutuellement décalés dans le sens de la circonférence au moins dans certaines sections des disques.
EP95934665A 1994-10-10 1995-10-10 Outil a degorger Withdrawn EP0785853A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE9416221U 1994-10-10
DE9416221U DE9416221U1 (de) 1994-10-10 1994-10-10 Räumwerkzeug
PCT/EP1995/003984 WO1996011093A1 (fr) 1994-10-10 1995-10-10 Outil a degorger

Publications (1)

Publication Number Publication Date
EP0785853A1 true EP0785853A1 (fr) 1997-07-30

Family

ID=6914647

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95934665A Withdrawn EP0785853A1 (fr) 1994-10-10 1995-10-10 Outil a degorger

Country Status (8)

Country Link
EP (1) EP0785853A1 (fr)
KR (1) KR970706951A (fr)
CN (1) CN1169125A (fr)
AU (1) AU3699995A (fr)
BR (1) BR9509295A (fr)
CA (1) CA2202260A1 (fr)
DE (1) DE9416221U1 (fr)
WO (1) WO1996011093A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6321738B1 (en) 1998-08-28 2001-11-27 Diamond Products Joint Venture Diamond saw blade
GB2361204B (en) * 2000-03-13 2003-12-03 John Elliott Burgess An attachment for a percussive tool
DE102010063103A1 (de) * 2010-12-15 2012-06-21 Robert Bosch Gmbh Bearbeitungseinheit, zum Einarbeiten von Längsnuten in Gegenstände
WO2018180119A1 (fr) * 2017-03-27 2018-10-04 日本電産株式会社 Outil de brochage
CN107486592B (zh) * 2017-10-18 2019-07-30 成都格润特高新材料有限公司 短刃切削拉削精拉刀及短刃切削组合拉削精拉刀

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3234499A1 (de) * 1982-09-17 1984-03-29 Fa. Röttger Jansen-Herfeld, 5630 Remscheid Saegeblatt mit unrhythmischer zahnteilung
DE8706935U1 (de) * 1987-05-14 1987-10-08 Impex-Essen Vertrieb Von Werkzeugen Gmbh, 8800 Ansbach Mehrschneidige Fräserscheibe
DE3737045C2 (de) * 1987-10-31 1994-04-07 Crones & Co Gmbh Motorisch betreibbares Handgerät zum Fräsen von Nuten in Wänden od. dgl.
RU1771979C (ru) * 1990-07-19 1992-10-30 Специальное конструкторско-технологическое бюро "Строммашина" Многодисковый инструмент

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9611093A1 *

Also Published As

Publication number Publication date
BR9509295A (pt) 1998-11-03
CA2202260A1 (fr) 1996-04-18
CN1169125A (zh) 1997-12-31
KR970706951A (ko) 1997-12-01
DE9416221U1 (de) 1995-04-06
WO1996011093A1 (fr) 1996-04-18
AU3699995A (en) 1996-05-02

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