Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • B23C—MILLING
  • B23C3/00—Milling particular work; Special milling operations; Machines therefor
  • B23C3/007—Milling end surfaces of nuts or tubes
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • B23B—TURNING; BORING
  • B23B5/00—Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor
  • B23B5/16—Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor for bevelling, chamfering, or deburring the ends of bars or tubes
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • B23C—MILLING
  • B23C3/00—Milling particular work; Special milling operations; Machines therefor
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • B23C—MILLING
  • B23C3/00—Milling particular work; Special milling operations; Machines therefor
  • B23C3/12—Trimming or finishing edges, e.g. deburring welded corners
  • B23C3/122—Trimming or finishing edges, e.g. deburring welded corners of pipes or cylinders
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • B23C—MILLING
  • B23C5/00—Milling-cutters
  • B23C5/02—Milling-cutters characterised by the shape of the cutter
  • B23C5/10—Shank-type cutters, i.e. with an integral shaft
  • B23C5/109—Shank-type cutters, i.e. with an integral shaft with removable cutting inserts
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • B23C—MILLING
  • B23C2210/00—Details of milling cutters
  • B23C2210/70—Pilots
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • B23C—MILLING
  • B23C2220/00—Details of milling processes
  • B23C2220/40—Using guiding means
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • B23C—MILLING
  • B23C2265/00—Details of general geometric configurations
  • B23C2265/08—Conical
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T408/00—Cutting by use of rotating axially moving tool
  • Y10T408/55—Cutting by use of rotating axially moving tool with work-engaging structure other than Tool or tool-support
  • Y10T408/563—Work-gripping clamp
  • Y10T408/5633—Adapted to coaxially grip round work

Definitions

• the invention relates to the technical sector of metalworking, particularly to machining operations, and more particularly to chamfering and / or cutting operations performed at the end of any tubular member.
• this machining end of a tubular member can be achieved by means of HSS tool machines.
• the proposed solutions do not give complete satisfaction especially in the duration of execution of the work.
• HSS tools can be replaced by tools with carbide inserts that should also be rotated at high speeds. This results in the need to use a machine with significant dimensional characteristics and stiffness.
• the object of the invention is to remedy these disadvantages in a simple, safe, effective and rational manner.
• the problem to be solved by the invention is to be able to perform an orbital type machining at a very high speed, with the possibility of using a portable or fixed machine of small size and reduced weight, this machining being advantageously chamfering and / or a cut and other machining at the end of a tubular member.
• the invention allows the use of very high cutting speeds in m / min of the order of ten times higher than commonly used techniques (HSS or others).
• each carbide insert used is of the type having the technical characteristics conforming to or equivalent to those described in the international patent application WO 2004/078395.
• the cutter is constituted by a head coupled to the drive member and having a face with fingerprints for the angular mounting of the carbide inserts.
• the carbide inserts are profiled in section to delimit cutting faces composed of at least two rectilinear segments arranged angularly to perform the machining operation in the form of a cut and / or chamfering.
• the clamping means of the tubular member are formed by clamping jaws and the circular displacement means of the motor member are part of a machine comprising: a tray of clamping device rotatably mounted on one side of a fixed part, said plate and said part being pierced coaxially so as to provide an opening for the engagement of the tubular member; the fixed part has arrangements for mounting with displacement capacity in guided translation, the clamping jaws opening into the opening, under the effect of the circular drive of the clamping plate; on the other side of the fixed part, and in coaxial alignment, is mounted a rotating support plate which receives a crown mounted with capacity circular displacement and locking in position relative to said plate; the ring has arrangements adapted to receive the motor member; the entire plate and the crown are mounted with circular displacement capacity, manual or motorized, relative to the tubular member clamped between the jaws, to subject said member to the action of the carbide plates of the cutter under the effect of said combined displacement with the rotational drive of said cutter.
• FIG. 1 is a perspective view of an exemplary embodiment of a machine implementing the device according to the invention
• FIG. 2 is a perspective view of an embodiment of the drive motor equipped with a cutter with carbide inserts
• FIG. 3 is a perspective view of an embodiment of the milling head with carbide inserts according to the invention.
• Figure 4 is a view similar to Figure 3 of a milling head equipped with a rolling member
• FIG. 5 is another embodiment of the cutter arranged with carbide inserts for, according to the invention, perform the chamfering operation in combination with cutting inserts.
• an embodiment of the device for machining the end a tubular member is in the form of a machine capable of producing, in a known manner, an orbital machining.
• This type of machine as is apparent, for example, from the teaching of the aforementioned patent FR 2802134, comprises a plate (1) arranged vertically and facing, in the tangent position, a fixed part (2).
• the plate (1) is rotatably mounted relative to the fixed part (2) which can consist of a part of the frame of the machine.
• the plate (1) and the part (2) have a central opening for the engagement of the tubular member (not shown).
• the fixed part (2) has arrangements for mounting, with displacement capacity in guided translation, clamping jaws (3). For example, the displacement of the clamping jaws (3) takes place concentrically with the tubular member.
• the machine On the other side of the fixed part (2), the machine is equipped, in a coaxial manner with the turntable (1), with another rotating plate (6) for the circular displacement, in an orbital manner, a driving member (7) relative to the tubular member clamped between the jaws (3).
• the fixed part (2) and the plate (6) are arranged in parallel planes, in particular vertical planes.
• the driving means (13) of the turntable (6) for the circular movement of the mill motor around the tube can be either manual or motorized.
• the turntable (6) can receive, eccentrically or not, a ring (8) mounted with capacity for circular displacement and locking position relative to said plate (6).
• the ring (8) has arrangements for mounting, removably, the drive member (7).
• the driving motor member receives a cutter (9), conical or cylindrical, and having carbide plates (10). More particularly, the cutter is constituted by a head coupled to the drive shaft of the drive member (7) and having a face (9a) with recesses (9b) for the angular mounting, with disassembly capacity, carbide inserts (10).
• the face (9a) of the cutter has at least two carbide plates (10).
• this face (9a) has three carbide plates (10) regularly offset by 170 ° on a circumference.
• the cutter (9) can be mounted in a shell (11) semi-open secured to the housing (7a) of the drive member (7).
• the semi-open shell (11) has arrangements (l ia) for coupling to the ring gear (8), so that the carbide plates (10) perform the machining operation of the end of the tubular member under the combined effect of the circular displacement of the drive member (7) and the rotational drive of the cutter (9).
• Each carbide insert (10) is profiled in section to delimit cutting faces composed of at least two rectilinear segments (10a) and (10b) arranged angularly to perform the machining operation under shape of a cut and / or chamfering.
• the characteristics of the carbide inserts (10) are advantageously of the type defined by the teaching of the international application WO 2004/078395.
• the carbide inserts (10) can be declined in several angles, with different combinations, to chamfer, cut, cut-chamfer, erect, or other desired machining operations at the end of the tubular member.
• FIG. 5 shows a milling cutter (9) with chamfering carbide inserts (10) and cutting inserts (12).
• the milling cutter (9) is equipped with a rolling member (15) in the form of a roller, for example.
• a rolling member (15) in the form of a roller, for example.
• the drive member (7) for driving the cutter (9) can be electrical, pneumatic, hydraulic type.

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• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Milling Processes (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=36609347

Family Applications (1)

Country Status (7)

Families Citing this family (10)

Citations (1)

Family Cites Families (22)

• 2005
  • 2005-09-12 FR FR0552738A patent/FR2890582B1/fr active Active
• 2006
  • 2006-09-08 EP EP06808297A patent/EP1943041A1/de not_active Ceased
  • 2006-09-08 US US12/066,502 patent/US20090116914A1/en not_active Abandoned
  • 2006-09-08 WO PCT/FR2006/050859 patent/WO2007031671A1/fr active Application Filing
  • 2006-09-08 KR KR1020087007556A patent/KR20080069574A/ko not_active Application Discontinuation
  • 2006-09-08 CN CNA2006800417051A patent/CN101304830A/zh active Pending
  • 2006-09-08 JP JP2008529670A patent/JP2009507653A/ja active Pending

Patent Citations (1)

Non-Patent Citations (2)

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