• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    In order to obtain a pivot bearing through the drill shank (1) itself for the pivoting movements performed during the drilling operation, this drill shank (1) has an arched portion (5) which narrows towards the ends of the drill shank (1). In order to prevent excessive wear in the area of the arched portion (5), a bearing ring (10) is attached there which is easily interchangeable as a wearing part. …<IMAGE>…
    公开号:SU1724005A3
    申请号:SU894614852
    申请日:1989-08-25
    公开日:1992-03-30
    发明作者:Фишер Артур
    申请人:Фишер-Верке Артур Фишер Гмбх Унд Ко.Кг (Фирма)；
    IPC主号:
    专利说明:

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    on the drilling plate 4. Between the drilling head 3 and the stop ring 2 on the shank 1 of the drill, there is an area having a thickening 5, which serves as a touching support when an extension 6 is formed at the bottom of the hole. As a thickening 5, a ring may be used.
    bearing with a smooth convex surface. The bearing ring is mounted on a portion of the shank 1, which has a diameter smaller than the diameter of the shank by an amount less than the depth of the grooves designed to remove treatment waste. 5 hp ff, 3 ill.
    The invention relates to metal cutting and can be used to form holes with an expansion of the diameter at its bottom.
    The purpose of the invention is to improve the accuracy by ensuring the straight direction of the drill in the hole.
    FIG. 1 shows a drilling device for making the holes drilled, general view; in fig. 2 - the same, longitudinal section; in fig. 3 - drilling device covered by the sleeve, a longitudinal section.
    The drilling device comprises a shank 1 of the drill and a retaining ring 2 rigidly mounted thereon. A drill plate 4 is inserted into the drilling head 3, the end cutting edges of which Y-shaped protrude from the shank 1 of the drill designed for fastening in the holder. Between the drilling head 3 and the stop ring 2 on the shank 1 of the drill, there is a section having a thickening 5 that serves as a tilting support when an extension 6 is formed at the bottom of the hole. In this case, the thickening 5 abuts against the wall 7 and has a cylindrical shape in this area, with the turning limit being limited by the shape of the thickening 5. Thus, extensions of 6 different diameters can be made at the bottom of the drilled hole.
    The retaining ring 2 is rigidly fixed on the shank 1 by means of crimping or otherwise, and limits the depth of entry of the drilling head 3.
    In order to remove the drilling mud from the drilled hole 7, the drill shank 1 has grooves for the drill flutes 8, which extend from the drill head 3 through the thickening 5 through the stop ring 2 to the straight part of the drill shank. Burov flour, thus, can be carried out through the annular hole of the retaining ring 2.
    FIG. 2 shows another embodiment of a drilling device in which the retaining ring 2 is fixed
    by means of a spring washer 9, which is inserted into an annular groove on the shank 1. The retaining ring 2 can thus be easily replaced after removing the spring washer 9.
    At the widest point of the bulge 5, a bearing ring 10 is provided, which has a smooth, convex surface corresponding to the shape of the bulge 5. Bearing ring 10 covers shank 1
    the drills on the neck, respectively, at the narrowing 11, which is shallower than the depth of the grooves for the drillmeal 8. The grooves for the drillmeal 8 are thus under the bearing ring 10 so that the flour that forms in the area of the drill head 3 can be removed from the drilled hole.
    The bearing ring 10 has a longitudinal slot 12, so that when it is mounted on
    the shank of the drill bit could expand and re-compress. The bearing ring 10 may first be mounted on the non-hardened shank 1 of the drill, then quenched together with the shank 1 of the drill.
    The bearing ring 10 is a replaceable wear part having better support properties than the thickening 5 of FIG. one.
    FIG. 3 shows a further embodiment of the drilling device in which the retaining ring 2 is formed by the retaining flange 13 of the sleeve 14, the sleeve 14 has a longitudinal slot 15 and is installed between the barrel-shaped collar 16 and the protrusion
    shank 17. The protrusion of the shank 17 is narrowed in the direction of the drilling head, so that the portion of the shank between the protrusion of the shank 17 and the drilling head 3 definitely limits the movement when you expand the expansion 6 (figure 1).
    权利要求:
    Claims (6)
    [1]
    Claims 1. A drilling device for making taped holes, comprising:
    the shank of the drill bit, located on the end of the latter, opposite the mount of the shank, the tool head mounted on the shank
    an anvil ring designed to interact with a spherical shoulder made on the shank from its mounting in the holder, and a drill is made from the mounting side of the drilling head to contact with the anvil ring. grooves are made on the surface of the drill, characterized in that, in order to increase accuracy, the area on the drill between the stop ring and the tool head has a diameter greater than the diameter of the drill, and the connection mentioned in ASTK with a drill carried out smoothly.
    [2]
    2. The device according to claim 1, that is, so that the area of larger diameter on the drill in the area of its maximum diameter is cylindrical.
    [3]
    3. The device according to paragraphs. 1 and 2, in that the retaining ring is fixed on the shank, with grooves for diverting treatment waste, which are continuation of the grooves on the surface of the drill,.
    [4]
    4. A device according to claims 1 and 2, characterized in that it is provided with a spring washer installed with the possibility of engagement with an abutment ring, placed in an annular groove, which is formed on the drill shank.
    [5]
    5. Device on PP. 1-4, that is, since the larger diameter portion on the drill is a ring
    bearing, along which the slot is made, and the bearing ring is installed on the section of the shank having a diameter smaller than the diameter of the shank by an amount that is less than the depth of the grooves on the surface of the drill.
    [6]
    6. Device according to claims 1-5, characterized in that a slot is made along the axis of the stop ring, and the surface of the sveol between the protrusion and the tool head
    has a conical shape, with a smaller diameter of the said conical surface located on the side of the tool head, and grooves are made on the spherical collar to remove waste
    processing.
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    同族专利:
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    引用文献:
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    FR887811A|1941-12-12|1943-11-24|Drill or other rotary tool, insert|
    FR902101A|1943-09-29|1945-08-20|Schneider & Cie|Combination tool for metal drilling|
    GB923806A|1961-02-24|1963-04-18|Rawlplug Co Ltd|Improvements in drills and like tools|
    DE2349998C2|1973-10-05|1982-12-02|Artur Dr.H.C. 7244 Waldachtal Fischer|Drilling unit for producing an undercut in the borehole|
    NL168159C|1975-09-05|1982-03-16|Fischer Artur|DRILLING UNIT.|
    US4039266A|1976-07-19|1977-08-02|Connell John W O|Combination stop collar and cutting tool|
    DE2657000C2|1976-12-16|1985-10-10|Artur Dr.H.C. 7244 Waldachtal Fischer|Drilling unit for producing drill holes with an undercut|
    DE8006868U1|1980-03-13|1981-11-19|Fischer, Artur, Dr.H.C., 7244 Waldachtal|DRILL FOR PRODUCING A DRILL HOLE WITH INNER UNDERCUT|
    DE3014388A1|1980-04-15|1981-10-22|Artur Dr.H.C. 7244 Waldachtal Fischer|DRILL UNIT INTENDED FOR PRODUCING DRILL HOLES WITH UNDERCUTS|
    DE8011374U1|1980-04-25|1985-03-21|Fischer, Artur, Dr.H.C., 7244 Waldachtal|DRILL UNIT INTENDED FOR PRODUCING HOLE HOLES|
    AT377459B|1981-06-29|1985-03-25|Siderurgie Fse Inst Rech|METHOD FOR CONTINUOUSLY POOLING MELT-LIQUID METAL ROTATING IN A CHOCOLATE, AND DEVICE FOR CARRYING OUT THE METHOD|
    GB2118462B|1982-01-08|1986-03-26|Charles Glen Dunn|Power tool screwdriving attachment|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE3828982A|DE3828982A1|1988-08-26|1988-08-26|DRILLING DEVICE FOR PRODUCING DRILL HOLES WITH UNDERCUT|
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