• 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:
    1437844 Tool holders; milling cutters P KUMMER 26 March 1974 [3 April 1973] 13352/74 Headings B3B and B3K A tool holder for a reversible, apertured, cutting element comprises a shank 1 with a support surface 5 for the cutting element 2 and a hole 8 opening into the support surface 5 at an acute angle, in which hole a clamping stud 3 is displaceably guided, the stud 3 having a shaft part 3a guided in the hole and a head part 3b which is engageable in the aperture 7 of the cutting element, and further comprising a control member 4 which is adjustable in the shank and operatively engaged with the shaft 3a of the clamping stud by means of forminterlocking formations to displace the clamping stud in the hole 8. The control member is a screw 4 which engages screw threads 10a of a bore 10 by a screwed portion 4a and which further includes annular ribs 4d that engage teeth 9 in the shaft 3a. The support surface 5 may be angled in the shank 1 to provide positive or negative rake. In alternative embodiments, the screw 4 may be placed underneath the clamping stud in a plane parallel to the support surface (Figs. 7, 8, not shown); the control member may be a sleeve (15) (Figs. 10-12, not shown) adjustable axially along a screw and having teeth engageable with teeth on the clamping stud which are perpendicular to the axis of the shaft part 3a; the control member may be a divided sleeve adjustable axially by a screw (Figs. 13-15, not shown) having one part with helical teeth which engage teeth on the core 10 so that as it moves axially it is forced to rotate also, the other part of the sleeve having teeth parallel to the axis of the sleeve and engaging teeth in the part 3a. The shank 1 may be a lathe tool or part of a rotary milling cutter having a plurality of cutting elements 2.
    公开号:SU831058A3
    申请号:SU742010387
    申请日:1974-04-02
    公开日:1981-05-15
    发明作者:Куммер Пьер
    申请人:Kummer；
    IPC主号:
    专利说明:

    54). THRUSHING TOOL
    The invention relates to metal working. A cutting tool is known with a replaceable cutting plate fixed in the holder's nest, pressed against the walls of the socket with the help of a rod, the head of which is installed in the hole of the plate, and the stem is located in the holder hole at an acute angle to the bearing surface of the socket and the control element screwed into the second part of the socket. holes made in the holder and engaging with the rod of the rod; l The disadvantage of this design is that it does not ensure that the insert is rigidly fixed in the holder slot. The purpose of the invention is to increase the stiffness of the plate attachment. For this purpose, both holes in the holder — under the TYPU and control element — cross each other, the projections of their axes intersect, the section of the control element entering into engagement with the rod rod is made in the form of a round rail. gi made serrated cutting. In addition, the transition from the threaded part of the hole for the control element to its smooth part is made in the form of a conical annular shoulder. with the taper corresponding to the taper of the teeth of the circular rod, and the position of the said step on the control element is selected so that it serves as a restrictive stop for the control element after the end of the fixing of the cutting insert, and the end surfaces of the control element coincide with the outer surfaces of the holder. FIG. 1 shows a cutter with a cutting plate, in the clamping position; ka fig. 2 is a cross section A-A in FIG. one; in fig. 3 is a longitudinal section bb of FIG. 1, in the clamping position; 4, 5 is a longitudinal section bb of FIG. 1, in the unlocked position and in the intermediate position. In the nest of the holder 1 a rotatable plate 2 is placed, resting on the bearing surface 3 of the socket and pressed against its walls 4 and 5 of the mounting shaft and the control element 7. A hollow cylindrical hole 8 is made in the holder 1, in which a cylindrical rod 9 tons 6 is mounted practically without clearance, but the barrel-shaped head 10 of which is marked in the hole 11 of the cutting plate 2. The rod 9 is located at an acute angle (for example 30) bearing surface 3 holder holders; the head 10 is inside the cylindrical envelope surface defined by the three-dotted line C, which is a continuation of the lateral surface of the rod 9. On the part of the rod 9, the cutting bar 12 is cut parallel to the tangent plane, and the straight 3: the ridge grooves 13 are formed with a diametral plane located below the rim The angle to the tangent plane is an angle equal to the angle c. In the holder 1, a hole 14 is made perpendicular to the support surface 3 of the socket, which has a threaded section 15 above this plane, and a smooth section 16 below. The control element 7 with its upper threaded part 17 is screwed into the threaded section 15 of the hole 14. The control element 7 is in engagement with the rod 9 tons gi 6 by means of a round rail 18 formed thereon. The end portion 19 of the control element 7 has an outer diameter equal to the outer diameter of the threaded portion 17 and round rail 18, as well as the diameter of a smooth portion 16 14, At the transition from the smooth section 16 to the threaded 17 on the control element 7, there is a conical annular step 20 having the same taper as the tooth of the circular rail 18 and the threaded part 17. The holes B and 14 intersect and their axes intersect. The annular step 20 is positioned so that it serves as a limiting stop for the upper side surface 21 of the uppermost teeth of the circular rail 18.
    When the control element 7 is moved, it acts on the gear cut 12 of the rod 9 tons 6. The force K applied in this way by the control element 7 to the clamping rod 6, directed downwards parallel to the axis of the control element 7, causes the clamping rod 6 to move in a blind hole eight; the force of displacement V, the force on the support is N, therefore, the angle of the angle should be chosen so that tan oi. was significantly greater than the friction coefficient between the surface of the rod 9 and the hole 8. At the point of contact of the clamping head 10 with the wall of the hole 11 of the rotary cutting plate 2, force V again acts, which decomposes into clamping force A and force against the supports M. The control element 7 has (on their end parts or the entire length)
    hex socket 22 for the allen key.
    The control element 7 controls in the clamping direction, i.e. from the position of FIG. 4 to the position according to FIG. 3, when performing right-hand threading, rotates the control element 7 clockwise Fig., Thus the friction forces acting on the clamping rod 6 at the gearing points are directed to the right and due to the inclination (corner of the blind hole 8 and the rod 9 of the clamping rod 6, they support the movement of this rod, which already already causes toothed engagement. When the clamp is loosened, the control element 7 is rotated counterclockwise, the friction force at the gearing points Directed to the left - the movement of the s-clamping rod 6 is maintained again.
    In the design, in which the control element 7 would be on the other side of the thrust 6 (in Fig. 1 - top, in Fig. 2 - right), the direction of the serrated cutting on control element 7 should be left so that during the clamping process - to once the control element 7 is rotated counterclockwise, the frictional forces acting on the rod 9 of the clamping rod 6 would again facilitate its movement caused by the gearing.
    The proposed design provides rigid fixing of the cutting plate on the bearing surface 3 and the walls 4 and 5 of the holder 1, and involuntarily loosening the clamp reliably prevents even when vibrations occur in the tool, since the gearing of the rails is self-braking and, moreover, forces still act friction caused by the A and N forces on the support.
    权利要求:
    Claims (2)
    [1]
    1. Cutting tool with a replaceable cutting plate fixed in the holder's nest, pressed against the walls of the socket with the help of a rod, whose head is installed in the hole of the plate, and the rod is located in the holder hole at an acute angle to the bearing surface of the socket and the control element screwed into the threaded part a second hole made in the holder and engaging with the rod of the rod, characterized in that, in order to increase the rigidity of the mounting plate, both holes in the holder cross with each other, Rich projections of their axes intersect, and conductive engages with
    The rod of the control element is made in the form of a round rod, and on the corresponding part of the rod, the rod is filled with a gear cut.
    [2]
    2. The cutting tool according to claim 1, characterized in that the transition from the threaded part of the bore for the control element to its smooth part is made in the form of a conical annular step with a taper corresponding to the taper of the teeth of the round rail, and the position of the said step on the control element It is chosen in such a way that it serves as a limiting stop for the control element after the end of the fixing of the cutting insert, while the end surfaces of the control element coincide with the outer nor surface of the toolholder.
    Sources of information taken into account in the examination
    1. USSR author's certificate 212005, Cl, B 23 to 27/16; 1966.
    类似技术:
    公开号 | 公开日 | 专利标题
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    SU831058A3|1981-05-15|Cutter tool
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    DE102006027280B3|2008-02-07|Tool for machining a workpiece, cutting element and carrier body
    JP3605678B2|2004-12-22|Cutting tool for high-speed machining
    US3635572A|1972-01-18|Boring bar adjustment
    US2253028A|1941-08-19|Rotary cutting tool
    US5336026A|1994-08-09|Adjustable boring bar
    US3363299A|1968-01-16|Cutting tool assembly
    US4730525A|1988-03-15|Indexable cutting tool
    GB2026354A|1980-02-06|Tool holder
    US3973309A|1976-08-10|Clamping tool holder for reversible cutting element
    US3088141A|1963-05-07|Single point screw thread cutting tool having means for feeding the tool after successive cuts
    US3144795A|1964-08-18|Tool
    DE2505515A1|1975-08-14|CUTTING TOOL
    US2275326A|1942-03-03|Tool bit and tool holder therefor
    US3216086A|1965-11-09|Lathe or like tools
    US3949643A|1976-04-13|Profiling device
    US3765788A|1973-10-16|Adjustable dovetail boring bar
    EP0264013A2|1988-04-20|Device for locking tool bits on tool bit-holders
    同族专利:
    公开号 | 公开日
    JPS49129981A|1974-12-12|
    JPS5325393B2|1978-07-26|
    FR2224231A1|1974-10-31|
    GB1437844A|1976-06-03|
    FR2224231B1|1977-10-14|
    DE2326220B2|1978-01-26|
    CH564395A5|1975-07-31|
    DE2326220C3|1981-06-25|
    IT1004080B|1976-07-10|
    US3906602A|1975-09-23|
    DE2326220A1|1974-10-17|
    SE392224B|1977-03-21|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    GB1017309A|1963-03-23|1966-01-19|Higher Speed Metals Ltd|Improvements in or relating to holders for replaceable cutting tips or blades|
    US3238600A|1964-02-26|1966-03-08|Valeron Corp|Clevis lock cutting tool holder|
    US3280450A|1964-06-09|1966-10-25|Aloris Tool Co Inc|Tool holder for cutter element|
    US3289272A|1964-10-13|1966-12-06|Willeys Carbide Tool Co|Cutting tools with throw-away inserts|
    US3314126A|1966-04-07|1967-04-18|Carmet Co|Tools|
    US3316616A|1966-07-19|1967-05-02|Valeron Corp|Elbow tilt pin retainer|
    DE1602799A1|1967-04-13|1970-04-09|Hertel Karl|Clamping steel holder|
    US3491421A|1967-12-27|1970-01-27|Madison Ind Inc|Tool holder for throw-away inserts|
    US3456315A|1968-08-15|1969-07-22|Henry W Stier|Cutting tools|
    US3654682A|1970-09-01|1972-04-11|Edward H Newbould|Tool holder|
    DE2044092A1|1970-09-05|1972-03-16|Krupp Gmbh|Cutting tool|US3973309A|1975-07-02|1976-08-10|Pierre Kummer|Clamping tool holder for reversible cutting element|
    JPS5358392U|1976-10-20|1978-05-18|
    AT388889B|1987-05-18|1989-09-11|Boehler Gmbh|CUTTING MACHINE TOOL|
    EP0362505A1|1988-10-06|1990-04-11|Gte Valenite Corporation|Positive rake insert locating means|
    US6773210B2|2002-10-28|2004-08-10|Kennametal, Inc.|Clamp pin tool holder|
    KR20150062452A|2013-11-29|2015-06-08|대구텍 유한회사|Cutting tool assembly|
    CN110899800B|2019-12-18|2021-03-23|株洲钻石切削刀具股份有限公司|Single cutting blade replaceable type finish milling ball head cutter|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    CH475273A|CH564395A5|1973-04-03|1973-04-03|
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