WO2014202035A1 - Outil de pierrage à limitation de course réglable destiné à mettre en œuvre un élargissement à force - Google Patents

Outil de pierrage à limitation de course réglable destiné à mettre en œuvre un élargissement à force Download PDF

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Publication number
WO2014202035A1
WO2014202035A1 PCT/DE2013/100226 DE2013100226W WO2014202035A1 WO 2014202035 A1 WO2014202035 A1 WO 2014202035A1 DE 2013100226 W DE2013100226 W DE 2013100226W WO 2014202035 A1 WO2014202035 A1 WO 2014202035A1
Authority
WO
WIPO (PCT)
Prior art keywords
honing tool
fixed stop
honing
tool according
adjusted
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/DE2013/100226
Other languages
German (de)
English (en)
Other versions
WO2014202035A4 (fr
Inventor
Bernd Sihling
Michael PETR
Andreas KURRLE
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Diahon Werkzeuge GmbH & Co KG
Original Assignee
Diahon Werkzeuge GmbH & Co KG
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 Diahon Werkzeuge GmbH & Co KG filed Critical Diahon Werkzeuge GmbH & Co KG
Priority to DE112013007181.9T priority Critical patent/DE112013007181A5/de
Priority to PCT/DE2013/100226 priority patent/WO2014202035A1/fr
Publication of WO2014202035A1 publication Critical patent/WO2014202035A1/fr
Publication of WO2014202035A4 publication Critical patent/WO2014202035A4/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B33/00—Honing machines or devices; Accessories therefor
    • B24B33/02—Honing machines or devices; Accessories therefor designed for working internal surfaces of revolution, e.g. of cylindrical or conical shapes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B33/00—Honing machines or devices; Accessories therefor
    • B24B33/10—Accessories
    • B24B33/105—Honing spindles; Devices for expanding the honing elements

Definitions

  • the invention relates to a device by means of which the feed path of a primarily hydraulically operated honing tool can be limited.
  • Honing is a machining process with geometrically indefinite cutting edges for almost all materials; It is often the last production process in production. The aim is to improve the dimensional and form accuracy and to positively influence the tribological properties.
  • a honing tool regularly executes a two-component cutting movement within a bore to be machined, during which rotational and axial movement are superimposed. This gives the machined surface defined crossed traces of these cutting movements, which are also referred to as honing or cross-grinding.
  • honing or cross-grinding For example, in engine construction, cylinder surfaces (inner surfaces of cylinder bores or cylinder liners) and bearings for shafts undergo honing to obtain finished surfaces that meet extremely high dimensional and dimensional tolerances and surface structure requirements.
  • Honing is already known by applying a piston in the tool with cooling lubricant (DE 10 2008 017 956.6).
  • the cooling lubricant also serves to expand.
  • the honing process is controlled via the activation or deactivation of the application of cooling lubricant via the honing machine.
  • Various shutdown criteria e.g., air flow rate determination via differential pressure measurement or time) control the one-step process.
  • a tool usually has a compression spring and spring washers. However, both spring systems are not used to control the expansion movement, but merely serve to return the expansion system to the starting position at the end of the machining process.
  • a compression spring is compressed by the application of a lubricant to a piston in the tool so that the tool piston moves axially out of the pressure chamber. It is positively received by the honing stone carrier to press the honing stones to the workpiece to be machined. If the pressure of the cooling lubricant is withdrawn, the compression spring pushes the tool piston back in the pressure chamber and the spring ring pulls the brackets back to the starting position. Hydraulic double expansion honing tools are also prior art (WO / 2012/041264).
  • the final diameter of the honing process can not yet be defined exactly or only with a small tolerance range.
  • the wear of the honing segments influences the honing result.
  • the task is to specify the final diameter of the honing process exactly.
  • the invention proposes a honing tool with the features of claim 1. Further developments of the invention according to claim 1 are the subject of the dependent claims 3, 4 and 7. Further developments of the invention according to independent claim 2 are the subject of the subclaims 5 and 6. A method in combination of the device with the features according to claim 1 or 2, subject matter of the dependent claims 8 and 9-
  • the invention proposes a honing tool with a hydraulic expansion system which is actuated by the cooling lubricant (FIG. 1). Therefore, the expansion system proposed according to the present invention may preferably be used to machine bores to a precise diameter (e.g., as a pre-honing operation). With an adjustable fixed stop (la + lb), the final diameter to be created can be set precisely. In this case, according to FIG. 1, on the one hand the axial movement (feed path) of the central Zustellkolbens (3) are blocked, on the other hand but also according to FIG. 2, the radial movement of one or more honing beam support (2) to the outside.
  • a compression spring is compressed by the application of the Zustellkolbens (3) in the tool with cooling lubricant, so that the Zustellkolben (3) moves axially from the pressure chamber (5). It is positively received by the honeycomb carrier (2) to press the honing stones (4) to the workpiece to be machined.
  • the axial movement of the Zustellkolbens (3) is stopped defined, preferably, as soon as the end diameter to be generated is reached.
  • the radial adjustment of the fixed stop (lb) the radial expansion movement is stopped defined, preferably, as soon as the end diameter to be generated is reached. If the pressure of the medium is withdrawn, the compression spring pushes the Zustellkolben (3) back into the pressure chamber (5) and a spring ring pulls the support brackets (2) in the starting position.
  • the fixed stop (la) can be carried out advantageously, but not necessarily by means of a screw in a fine thread.
  • the tool-side end (1a) is received in the infeed piston (3).
  • contamination of the contact surfaces between Zustellkolben (3) and fixed stop (la) is avoided. This contamination could lead to inaccurate, undefined widening.
  • the invention proposes a method (FIG. 3) according to which the spindle or axle load applied to the machine spindle (8) is monitored during machining, for example by measuring the power consumption of the spindle motor (7).
  • a sensor (6) is used for monitoring. Falls the power consumption under a value defined by trial operation, the machining process is stopped. This value is determined by the position of the tool in the so-called “full cut", in which all Honsegmente abut fully and flat in the bore.
  • this system can be used in machining centers (BAZ), as here in a simple manner and without mechanical overhead by means of the axes of the machine an axial and / or rotational movement for setting the fixed stop a m tool can be performed.
  • BAZ machining centers

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)

Abstract

Au cours d'un procédé de pierrage, on vise à obtenir un diamètre final le plus précis possible. Lors de l'utilisation de dispositifs d'approche hydrauliques, ceci n'est possible que de manière insuffisante. Le nouvel outil de pierrage permet de régler le diamètre final de l'opération de pierrage respective par un simple ajustement d'une butée fixe (1a + 1b). Il ne reste qu'à compenser l'usure restante à l'intérieur de la plage de tolérance. En fonction de la position d'une butée fixe (1a + 1b) réglable principalement mécaniquement, la course d'approche du piston d'approche (3) ou l'élargissement du support de baguette de pierrage (4) est limité(e). Ce système peut être utilisé de manière particulièrement avantageuse dans des centres d'usinage (BAZ). Au cours d'un procédé combiné, la puissance absorbée est surveillée et, en cas de chute de la puissance absorbée, on met fin à l'entraînement de l'outil et le processus est arrêté.
PCT/DE2013/100226 2013-06-21 2013-06-21 Outil de pierrage à limitation de course réglable destiné à mettre en œuvre un élargissement à force Ceased WO2014202035A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE112013007181.9T DE112013007181A5 (de) 2013-06-21 2013-06-21 Honwerkzeug mit verstellbarer Wegbegrenzung für die kraftschlüssige Aufweitung
PCT/DE2013/100226 WO2014202035A1 (fr) 2013-06-21 2013-06-21 Outil de pierrage à limitation de course réglable destiné à mettre en œuvre un élargissement à force

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/DE2013/100226 WO2014202035A1 (fr) 2013-06-21 2013-06-21 Outil de pierrage à limitation de course réglable destiné à mettre en œuvre un élargissement à force

Publications (2)

Publication Number Publication Date
WO2014202035A1 true WO2014202035A1 (fr) 2014-12-24
WO2014202035A4 WO2014202035A4 (fr) 2015-02-19

Family

ID=49000747

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2013/100226 Ceased WO2014202035A1 (fr) 2013-06-21 2013-06-21 Outil de pierrage à limitation de course réglable destiné à mettre en œuvre un élargissement à force

Country Status (2)

Country Link
DE (1) DE112013007181A5 (fr)
WO (1) WO2014202035A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2309485A (en) * 1940-07-17 1943-01-26 Chrysler Corp Lapping tool
US6106383A (en) * 1997-07-21 2000-08-22 Micromatic Operations, Inc. Integral air gage for releasable cylindrical tool body
DE102008017956A1 (de) 2008-04-08 2009-10-15 Xlnt High Precision Tools Gmbh Honwerkzeug mit hydraulischer Zustelleinrichtung
WO2012041264A1 (fr) 2010-09-28 2012-04-05 Xlnt High Precision Tools Gmbh Outil de rodage comportant un élargissement hydraulique, commandé mécaniquement en un ou plusieurs pas

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2309485A (en) * 1940-07-17 1943-01-26 Chrysler Corp Lapping tool
US6106383A (en) * 1997-07-21 2000-08-22 Micromatic Operations, Inc. Integral air gage for releasable cylindrical tool body
DE102008017956A1 (de) 2008-04-08 2009-10-15 Xlnt High Precision Tools Gmbh Honwerkzeug mit hydraulischer Zustelleinrichtung
WO2012041264A1 (fr) 2010-09-28 2012-04-05 Xlnt High Precision Tools Gmbh Outil de rodage comportant un élargissement hydraulique, commandé mécaniquement en un ou plusieurs pas

Also Published As

Publication number Publication date
WO2014202035A4 (fr) 2015-02-19
DE112013007181A5 (de) 2016-02-25

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