Classifications

• • 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
  • B23B5/08—Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor for turning axles, bars, rods, tubes, rolls, i.e. shaft-turning lathes, roll lathes; Centreless turning
  • B23B5/12—Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor for turning axles, bars, rods, tubes, rolls, i.e. shaft-turning lathes, roll lathes; Centreless turning for peeling bars or tubes by making use of cutting bits arranged around the workpiece

Definitions

• the invention relates to a peeling machine.
• Such peeling machines are used to descale round metal rods, possibly to remove their decarburized layer, to refine the surface of the rods and to improve the tolerances of the rods.
• Pull-out device which is preferably designed as a tension carriage, these two tasks alone.
• a peeling machine of the generic type in which the feeding device and the tensioning carriage are hydraulically coupled to one another in order to ensure optimal synchronization of the speeds which the workpiece receives from the feeding device and the tensioning carriage, in particular in the transfer phase, be conveyed to achieve.
• the rigidity of this design of the transport system of the peeling machine is unsatisfactory. ever
• the invention is therefore based on the object of avoiding the disadvantages described above and ensuring the synchronism of the pull-in apparatus and pull-out device with a high rigidity of the connection from the two assemblies.
• a mechanical gear reduction / reduction of the drive of the feed apparatus allows a precise transfer of the feed speed of the workpiece to the speed of the rod and the speed thus conveyed to the workpiece by the pull-out device.
• the drive of the pull-out device no longer goes around the machine but on the shortest route from the feeder to the pull-out device.
• the bar is only the smallest required distance from the center of the machine, the passage of the workpiece through the machine, and
• a manual transmission is provided according to claim 2, which allows the
• Pulling device to issue different speeds that take into account the requirements of the peeling operation. Different feed speeds can be provided for different phases of the extraction of the workpieces.
• the transport of the workpieces from the peeling machine, after completion of the processing, can be accelerated. If a tensioning carriage is used, the return travel of the tensioning carriage can be carried out at a different speed or the displacement speed can be reduced in this way when the feed is taken over only by the pull-out device in order to reduce the cutting torque.
• Claim 3 thought.
• the return speed of the clamping carriage is generally higher than the feed speed of the workpiece; therefore a gear branch is provided here.
• a variable speed motor e.g. a DC motor, thought.
• the embodiment of the invention is preferred according to Claim 4 provided, which is characterized by its structural simplicity.
• the rod is at this
• Embodiment claimed for pressure The movement of the rollers of the feeder can be in without angular gear
• OMPI implement the desired movement of the bar and the pull-out trolley.
• an embodiment of the invention according to Claim 5 can be selected, in which the rod is arranged in a stationary manner but rotatably in the peeling machine.
• the length of the rod is such that it bridges the distance between the feeder and the pull-out device, in a version with a tensioning carriage in its most distant position.
• the preferred embodiment of the invention according to claim 6 prevents a bending element from being introduced into the rod 12 from the tensioning carriage.
• This version is particularly advantageous in older machines in which the guides of the pull-out tensioning carriage are worn out.
• Fig. 1 a schematic representation of the invention on a peeling machine
• Fig. 2 a section through Fig. 1 acc. Line II-II
• Fig. 3 a second embodiment of the invention with a schematic representation of the approach
• the peeling machine 1 shows a peeling machine 1, which is preceded by a feeder 6 and which on the outlet side is a tensioning carriage 14 trained pull-out device 11 is arranged downstream.
• the peeling machine 1 consists of a machine body 3, a hollow shaft 4, which is rotatably but fixedly mounted in roller bearings 26, 27 and which carries a cutter head 5 on its end face.
• the peeling knives 53, 54 arranged on this remove a circumferential layer from the axially advanced workpiece 2 when the cutter head rotates.
• the rotary shaft receives the hollow shaft with the cutter head from a drive belt 29, which is connected to a main drive (not shown) of the peeling machine.
• the workpiece 2 is clamped within the hollow shaft 4 by guide rollers 30 which center it and dampen its vibrations.
• the feed apparatus 6 arranged upstream of the peeling machine consists, as can also be seen in FIG. 2, of the feed rollers 7... 10, a toothed pinion 23, a tensioning roller 39 and the drive.
• a drive motor drives all rollers 7 ... 10 synchronously.
• the drive motor 21 rotates the gear wheel 56 via the cardan shaft 42, which drives the roller 10 by means of a further cardan shaft.
• the gears 55, 56 are the same and mesh with each other.
• the roller 9 is rotated by the gear 55 of the gear 55.
• Both feed rollers 9, 10 are happy, arrow 43, 44 adjustable in the vertical direction in order to be able to guide workpieces 2 of different diameters centrally to the machine center.
• the drive motor 21 is optionally additionally connected to a rod 12 which serves to drive the pull-out device 11 arranged on the outlet side of the peeling machine.
• the drive of the rod 12 takes place with the interposition of the transmission 13.
• the transmission 13 has two inputs 17, 18 and one output 19.
• the gear wheel designed as the input 18 meshes with the gear 56 driven directly by the motor 21 and is freely rotatably mounted on the output shaft 19.
• the shaft 19 is non-rotatably connected to a clutch disc 57 and to the pinion 23.
• On one side of the clutch disc 57 is the gear designed as an input 18 in the gear 13 and on the opposite side of the clutch disc the second input 17 designed as a driving disc is arranged in the gear 18.
• the clutch disc 57 is pressed by means not shown in the direction of arrow 45 alternatively against the drive plate or the gear. It can be locked in a medium idle position.
• the tensioning carriage 14 is driven alternatively by the motor 21 of the intake rollers via the rod 12 or by the return motor 20.
• a motor with an electrically controllable speed is preferably provided as the return motor, with which the speed of the tensioning carriage can be changed outside the actual peeling processing phase.
• the rod 12 is straight. It is connected by a hinge 48 to the tensioning carriage 14 in order to avoid that a bending moment is introduced into the rod 12 by the tensioning carriage.
• the rod 12 penetrates the peeling machine body 3 below the hollow shaft 4 in the immediate vicinity thereof. it has a in the area of the feeder 6
• the tensioning carriage 14 has an upper crosshead 60 and a chassis 58, which are connected to one another by tie rods 35, 36. He is with his chassis 58 on a machine bed 15 on the outlet side of the peeling machine 1 back and forth
• the OMPI movable rollers 28 attached to it guide it in a guideway 16 formed on the machine bed 15 below the machine center 59.
• the clamping carriage has two clamping jaws 31, 32 which are adjusted to the workpiece diameter and the machine center 59 with the aid of a clamping wedge 38.
• the clamping cylinders 33, 34 press the workpiece 2 against the lower clamping jaw 31 with the clamping jaw 32.
• the peeling machine 1 is unchanged.
• the drawing-in device 46 differs in that
• Bevel pinion 51 which takes the place of the toothed pinion 23 in FIGS. 1 and 2.
• the bevel pinion 51 forms, together with a bevel gear 52 on the rod 47, an angular gear.
• the rod 47 is rotatably mounted in the machine body 3 of the peeling machine 1 but is secured against axial displacement. With an end section 24 designed as a thread, the rod 47 engages in a nut thread 25 formed on the chassis 49 of the tensioning carriage 50. When the rod 47 rotates, the clamping carriage moves in the direction of movement of the workpiece 2 or on the way back against this direction.

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• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Turning (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=6217821

Family Applications (1)

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Family Cites Families (3)

• 1983
  • 1983-12-23 DE DE19833346613 patent/DE3346613A1/de active Granted
• 1984
  • 1984-08-30 EP EP84903278A patent/EP0165930A1/de not_active Withdrawn
  • 1984-08-30 WO PCT/DE1984/000176 patent/WO1985002799A1/de unknown
  • 1984-12-21 IT IT24211/84A patent/IT1196381B/it active

Non-Patent Citations (1)

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