WO2014001198A1 - Machine de forage profond, adaptateur et procédé de forage profond - Google Patents

Machine de forage profond, adaptateur et procédé de forage profond Download PDF

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Publication number
WO2014001198A1
WO2014001198A1 PCT/EP2013/062916 EP2013062916W WO2014001198A1 WO 2014001198 A1 WO2014001198 A1 WO 2014001198A1 EP 2013062916 W EP2013062916 W EP 2013062916W WO 2014001198 A1 WO2014001198 A1 WO 2014001198A1
Authority
WO
WIPO (PCT)
Prior art keywords
adapter
pressure
cylinder
tool
peeling
Prior art date
Application number
PCT/EP2013/062916
Other languages
German (de)
English (en)
Inventor
Alfred Ostertag
Original Assignee
Ferroll Gmbh
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 Ferroll Gmbh filed Critical Ferroll Gmbh
Publication of WO2014001198A1 publication Critical patent/WO2014001198A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/02—Chucks
    • B23B31/24—Chucks characterised by features relating primarily to remote control of the gripping means
    • B23B31/26—Chucks characterised by features relating primarily to remote control of the gripping means using mechanical transmission through the working-spindle
    • B23B31/261—Chucks characterised by features relating primarily to remote control of the gripping means using mechanical transmission through the working-spindle clamping the end of the toolholder shank
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B41/00—Boring or drilling machines or devices specially adapted for particular work; Accessories specially adapted therefor
    • B23B41/02—Boring or drilling machines or devices specially adapted for particular work; Accessories specially adapted therefor for boring deep holes; Trepanning, e.g. of gun or rifle barrels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B41/00—Boring or drilling machines or devices specially adapted for particular work; Accessories specially adapted therefor
    • B23B41/12—Boring or drilling machines or devices specially adapted for particular work; Accessories specially adapted therefor for forming working surfaces of cylinders, of bearings, e.g. in heads of driving rods, or of other engine parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2231/00—Details of chucks, toolholder shanks or tool shanks
    • B23B2231/04—Adapters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2231/00—Details of chucks, toolholder shanks or tool shanks
    • B23B2231/24—Cooling or lubrication means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2260/00—Details of constructional elements
    • B23B2260/142—Valves

Definitions

  • the invention relates to a deep hole drilling machine according to the preamble of claim 1 and an adapter. According to a second aspect, the invention relates to a deep drilling method.
  • Stepped cylinders ie cylinders in which two sections with different inner diameters exist, can not be manufactured with known combination tools.
  • the operations of drilling or drilling, peeling and smooth rolling are carried out consecutively on three different machines.
  • the disadvantage of this is that highest accuracies are difficult to achieve.
  • a generic deep drilling machine is known, in which a guide member is connected in the machine direction with a drilling part, which in turn is attached to a drill rod. With the described deep drilling machine subsequent smoothing is not possible with the same clamping.
  • the invention has for its object to improve the production of non-continuous cylinders.
  • the invention solves the problem by a generic deep drilling machine in which the pressure fluid passage is centrally located and the adapter on the coupling side has a dispensing valve which has a dispensing valve body which opens by movement on the Bohrstangenseite to the dispensing valve.
  • the invention solves the problem by a deep drilling method, in particular for producing a, in particular stepped, hydraulic cylinder, comprising the steps of (i) mounting a cylinder blank on a deep drilling machine according to the invention, (ii) drilling a cylinder, (iii) loosening the drill coupling a peeling tool to the adapter; actuating at least one peeling blade of the peeling tool by pressurizing the pressure fluid passage of the adapter by fluid pressure and peeling a cylinder inside of the cylinder by means of the peeling tool; - Drilled and peeled blank in the same setting.
  • An advantage of the invention is that a higher accuracy can be achieved. Due to the fact that the clamping no longer has to be changed, transformer errors are avoided. Although the drilling tool is less rigid due to its modular design, it has been found that this circumstance only insignificantly influences the achievable accuracy.
  • a deep drilling machine is understood to mean a cutting machine tool which is designed to drill holes having an aspect ratio of at least 10 in workpieces made of metal.
  • the aspect ratio is the quotient of the length of the hole to its diameter.
  • Such deep drilling machines are special machines, since the deep drilling must be performed with a sufficiently high accuracy, so that in particular hydraulic cylinders can be manufactured.
  • the feature that the boring bar is rotationally driven is understood in particular to mean that the deep boring machine has a motor, in particular an electric motor, which is coupled to the boring bar.
  • the drill head is understood to mean a unit of the drilling tool which can be separated from the adapter and drill rod and on which the cutting edge or the cutting edges of the drilling tool are formed.
  • the pressurized fluid feedthrough is understood to mean a channel which is designed in particular such that a liquid with at least 50 bar can be passed through.
  • the pressure fluid supply device is connected to one side of a piston or a diaphragm, and the pressure fluid coming from the pressure fluid supply device exerts a force on the piston.
  • a second side of the piston or the membrane passes this force on to pressurized fluid whose fluid pressure rests against the coupling side.
  • the piston is designed as a pressure booster.
  • the adapter on the coupling side has a dispensing valve that has a dispensing valve body that opens to the dispensing valve by movement to the side of the drill rod, it is possible to insert a peeling tool that connects to the pressurized fluid passage in the coupled state with the adapter in that the dispensing valve body is pressed to the drill rod side.
  • a peeling tool is particularly simple, so that such a peeling tool can be coupled with high process reliability.
  • the deep drilling machine comprises a peeling tool, which, as an alternative to the drill head, has the form-fitting connection with the adapter. is bindable and has a receiving valve having a receiving valve body, wherein the receiving valve body is arranged so that and only when the peeling tool is positively connected to the adapter, the receiving valve body presses against the dispensing valve body and so the dispensing valve and the receiving valve are opened , In this way, the fluid pressure from the pressure fluid passage to the peeling tool can be transmitted and at the same time an undesirable leakage of pressurized fluid is prevented from the peeling tool.
  • the peeling tool has a pressure channel, which is connected to at least one piston for actuating the peeling blade, wherein the pressure fluid passage and the peeling tool, when the peeling tool is positively connected to the adapter, are pressure-tightly connected to each other, so that by pressurizing the pressurized fluid passage with pressurized fluid the paring knife can be brought into and / or out of engagement with the cylinder inner wall.
  • the peeling tool can be actuated by the deep drilling machine, which was previously possible only when using a combination tool.
  • the use of tools without control device sawing tools do not need such a device), the leakage of pressurized fluid and the ingress of contaminants in the pressure channel prevented.
  • the adapter comprises an expansion cone for locking and releasing the adapter, wherein the expansion cone is hydraulically actuated by means of a ring cylinder, and wherein the annular cylinder surrounds the pressure fluid passage radially.
  • the adapter can be positively connected with high bending stiffness with the drill head and the peeling tool.
  • the annular cylinder of the pressure fluid supply device via a second, separately controlled line with fluid idyak acted upon. It is possible, but not necessary, for the ring cylinder to be connected directly to the pressurized fluid supply device. It is also possible that pressurized fluid of the pressurized fluid supply device is based on a pressure transfer Device acts, which in turn changes the fluid pressure in the annular cylinder. For example, the pressurized fluid supply device is connected to one side of a piston or a diaphragm, and the pressurized fluid coming from the pressurized fluid supply device exerts a force on the piston.
  • a second side of the plunger or diaphragm passes this force on to pressurized fluid, the fluid pressure of which rests in the ring cylinder.
  • the piston is designed as a pressure booster. The force that is created by acting on the cylinder through the second control line on the piston, is needed to move the cone in the direction of the tool. This is achieved by compressing the disc springs and causes the folding of the locking elements, as shown in Figure 2b.
  • cooling lubricant is preferably pressed into an annular gap between the drill rod and the cylinder inner surface.
  • This coolant can flow, for example, through an open end of the hydraulic cylinder.
  • the method is a method of making a stepped hydraulic cylinder where the drilling is boring.
  • Figure 1 is a schematic view of a Wegrma- machine according to the invention.
  • FIG. 2 shows an adapter according to the invention of the deep drilling machine according to FIG. 1
  • Figure 2a shows the adapter of Figure 2 (upper part of the picture) completely and
  • FIG. 2b shows the adapter according to FIG. 2 (lower partial image) completely.
  • FIG. 1 shows a schematic view of a device according to the invention
  • Deep hole drilling machine 10 which has a workpiece holder 12 for receiving a workpiece 14 in the form of a hydraulic cylinder blank, a drilling tool 16 and a pressure fluid supply device 18.
  • the drilling tool 16 comprises a drill rod 20 which can be driven in rotation by means of a motor 22, and an adapter 24 which is non-rotatably connected to the drill rod 20, for example by means of a thread.
  • the drilling tool 16 also has a drill head 26 on which at least one cutting edge 28 is formed and which is positively connected to the adapter 24.
  • the drill head is configured to drill a hole having an inner diameter d 2 6, which belongs to a first stage of an at least two-stage hydraulic cylinder, which is produced from the workpiece 14.
  • the second stage has an inner diameter d.
  • the workpiece holder 12 is guided guided on a machine bed 30 in the longitudinal direction L of a cylinder longitudinal axis and movable in the direction of an arrow P.
  • the workpiece 14 is in this case a cylinder blank of a stepped hydraulic cylinder and has two sections of different inner diameter d. It is possible that, as shown in Figure 1, the drilling tool 16 is rotated. Alternatively or additionally, it is also possible that the workpiece 14 is rotated by means of a motor.
  • FIG. 2 shows the adapter 24, wherein a part-figure 2a represents the part above a longitudinal axis L and a part-figure 2b shows the area below the longitudinal axis.
  • Part 2a shows the situation in which the adapter 24 is positively connected to the tool in the form of the drill head 26.
  • Part 2b shows the situation in which the adapter 24 and the tool 26 are decoupled.
  • the adapter 24 has a boring bar side 32 and a coupling side 34 opposite the boring bar side 32.
  • a connection thread 36 for connecting to the boring bar 20 (see FIG. Along the longitudinal axis L, the adapter 24 has a pressurized fluid passage 38, by means of which pressurized fluid 40 is conducted from the boring bar side 32 to the coupling side 34. that can.
  • the pressurized fluid 40 passes through a pressure line 42 into the pressurized fluid passage 38.
  • the pressure fluid passage 38 is closed by a dispensing valve 44, which has a dispensing valve body 46 in the form of a valve ball and an associated valve seat 48.
  • the dispensing valve body 46 is biased by a compression spring 50 in its closed position.
  • a peeling tool 52 which is shown only in parts, is coupled to the adapter 24, wherein only one side of the peeling tool 24 has a hollow shaft taper 54.
  • the peeling tool 52 has a receiving valve 56 which has a receiving valve body 58 in the form of a valve ball, which is biased by a compression spring 60 to a valve seat 62.
  • the valve seat 48 of the discharge valve 44 and the valve seat 62 of the receiving valve 56 are formed so that the respective valve bodies 46, 58 project outwardly. If the peeling tool 52, as shown in Figure 2a, positively connected to the adapter 24, the two valve body 46, 58 have contact and press each other from their respective valve seats 48, 62.
  • the pressure channel 64 is connected in a manner not shown in Figure 2 with a housed in the peeling tool, not shown piston for controlling the paring knife. If a sufficiently large fluid pressure p is present in the pressure channel 64, then depending on the embodiment of the peeling tool 52, the peeling blades are either pushed outward or retracted inwardly against a pretensioning device.
  • the receiving valve 56 has a seal 66, so that the pressure fluid passage 38 and the pressure channel 64 are sealed to each other outside connected to each other.
  • the adapter 24 includes an expansion cone 68 connected to a piston 70 is that runs in a ring cylinder 72. If the annular cylinder 72 is acted upon by pressure fluid via a pressure line 74, then it is moved against the spring force of a restoring spring 76 on the coupling side 34. As a result, at least one locking element 78 slides on the expansion cone 68. The locking element 78 is received in a recess 80 and presses in the locking position shown in part 2a the hollow shaft cone 54 against a receiving bore 82 of the adapter 24. Thus, the peeling tool 52 is positively connected to the adapter 24.
  • Part 2b shows the situation in which the piston 70 has been displaced against the force of the return spring 76 on the coupling side 34, so that the locking member 78 is slipped on the expansion cone 68.
  • the locking element 78 releases the previously used in the tool (boring tool, peeling tool or roller burnishing tool) for removal and thus tool change in this position.
  • the expansion cone 68 includes a scraper 84 that is configured to scrape off any existing pressurized fluid from the pressurized fluid passage 38.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling And Boring (AREA)

Abstract

L'invention concerne une machine de forage profond comprenant un porte-pièce (12) destiné à la réception d'une pièce à usiner (14), un outil de perçage (16) et un dispositif d'approvisionnement en fluide sous pression (18). L'outil de perçage (16) comporte une barre d'alésage (20), un adaptateur (24) et une tête de perçage (26), et l'adaptateur (24) est relié fixement avec la barre d'alésage (20) et avec la tête de perçage (26), possédant un côté de barre d'alésage orienté vers la barre d'alésage (20) et un côté de couplage opposé à la barre d'alésage (20). Selon l'invention, l'adaptateur possède une circulation centrale de fluide sous pression, laquelle est reliée, en pouvant être sollicitée, à une pression de fluide provenant du dispositif d'approvisionnement de fluide sous pression (18), au niveau de son côté orienté vers la barre d'alésage, de sorte que la pression du fluide (p) peut être transposée du côté de la barre d'alésage vers le côté de couplage. L'adaptateur (24) présente une vanne d'évacuation sur le côté de couplage, vanne possédant un corps de vanne d'évacuation qui ouvre la vanne d'évacuation par le biais d'un déplacement latéral de la barre d'alésage.
PCT/EP2013/062916 2012-06-25 2013-06-20 Machine de forage profond, adaptateur et procédé de forage profond WO2014001198A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012012414.7 2012-06-25
DE201210012414 DE102012012414A1 (de) 2012-06-25 2012-06-25 Tiefbohrmaschine und Tiefbohrverfahren

Publications (1)

Publication Number Publication Date
WO2014001198A1 true WO2014001198A1 (fr) 2014-01-03

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Application Number Title Priority Date Filing Date
PCT/EP2013/062916 WO2014001198A1 (fr) 2012-06-25 2013-06-20 Machine de forage profond, adaptateur et procédé de forage profond

Country Status (2)

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DE (1) DE102012012414A1 (fr)
WO (1) WO2014001198A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014183871A1 (fr) * 2013-05-17 2014-11-20 Ecoroll Ag Werkzeugtechnik Machine-outil d'usinage par enlèvement de copeaux, jeu d'outils et procédé pour fabriquer un cylindre ayant un alésage borgne et/ou un alésage à gradin
CN109604681A (zh) * 2018-12-12 2019-04-12 上海电气电站设备有限公司 一种镗床高效加工发电机转轴端部深孔的方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4110720A1 (de) * 1991-04-03 1992-10-08 Mapal Fab Praezision Schnittstelle
DE10143388A1 (de) * 2001-09-04 2003-03-27 Komet Stahlhalter Werkzeuge Werkzeugmaschine mit Doppelspindel sowie Vorsatzkopf für derartige Werkzeugmaschinen
WO2006046789A1 (fr) * 2004-10-29 2006-05-04 Vision Inno-Tech Corp. Outil d'usinage de precision a base de materiau composite
WO2008069373A1 (fr) * 2006-12-05 2008-06-12 Doosan Engine Co., Ltd Outil de perçage de trou profond, appareil ayant celui-ci, et procédé de perçage de trou profond
DE102010013480A1 (de) * 2009-10-02 2011-04-07 Ferroll Gmbh Spanwerkzeug, insbesondere Schälwerkzeug, Aufbohrkopf, Vollbohrkopf oder Bohrkopf, sowie Zerspanungsmaschine und Verfahren
US20120027532A1 (en) * 2010-07-30 2012-02-02 Emanuele Cigni Pull stud bolt with external and internal coolant and methods

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BG39830A1 (en) * 1982-12-22 1986-09-15 Petkov Method for precise and finishing processing of profile cylindric openings and tool for its realization

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4110720A1 (de) * 1991-04-03 1992-10-08 Mapal Fab Praezision Schnittstelle
DE10143388A1 (de) * 2001-09-04 2003-03-27 Komet Stahlhalter Werkzeuge Werkzeugmaschine mit Doppelspindel sowie Vorsatzkopf für derartige Werkzeugmaschinen
WO2006046789A1 (fr) * 2004-10-29 2006-05-04 Vision Inno-Tech Corp. Outil d'usinage de precision a base de materiau composite
WO2008069373A1 (fr) * 2006-12-05 2008-06-12 Doosan Engine Co., Ltd Outil de perçage de trou profond, appareil ayant celui-ci, et procédé de perçage de trou profond
DE102010013480A1 (de) * 2009-10-02 2011-04-07 Ferroll Gmbh Spanwerkzeug, insbesondere Schälwerkzeug, Aufbohrkopf, Vollbohrkopf oder Bohrkopf, sowie Zerspanungsmaschine und Verfahren
US20120027532A1 (en) * 2010-07-30 2012-02-02 Emanuele Cigni Pull stud bolt with external and internal coolant and methods

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014183871A1 (fr) * 2013-05-17 2014-11-20 Ecoroll Ag Werkzeugtechnik Machine-outil d'usinage par enlèvement de copeaux, jeu d'outils et procédé pour fabriquer un cylindre ayant un alésage borgne et/ou un alésage à gradin
DE102013209243A1 (de) * 2013-05-17 2014-11-20 Ecoroll Ag Werkzeugtechnik Spanende Werkzeugmaschine, Werkzeugsatz und Verfahren zum Herstellen eines Zylinders mit einer Sack- und/oder Stufenbohrung
CN109604681A (zh) * 2018-12-12 2019-04-12 上海电气电站设备有限公司 一种镗床高效加工发电机转轴端部深孔的方法

Also Published As

Publication number Publication date
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