EP3402629A1 - Machine de rodage - Google Patents

Machine de rodage

Info

Publication number
EP3402629A1
EP3402629A1 EP16820253.9A EP16820253A EP3402629A1 EP 3402629 A1 EP3402629 A1 EP 3402629A1 EP 16820253 A EP16820253 A EP 16820253A EP 3402629 A1 EP3402629 A1 EP 3402629A1
Authority
EP
European Patent Office
Prior art keywords
honing
spindle
housing
honing machine
drive
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.)
Granted
Application number
EP16820253.9A
Other languages
German (de)
English (en)
Other versions
EP3402629B1 (fr
Inventor
Henning Klein
Roland Regler
Uwe Moos
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.)
Kadia Produktion GmbH and Co
Original Assignee
Kadia Produktion GmbH and Co
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 Kadia Produktion GmbH and Co filed Critical Kadia Produktion GmbH and Co
Priority to HRP20220874TT priority Critical patent/HRP20220874T1/hr
Publication of EP3402629A1 publication Critical patent/EP3402629A1/fr
Application granted granted Critical
Publication of EP3402629B1 publication Critical patent/EP3402629B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • B24B33/08—Honing tools
    • B24B33/089—Honing tools with a rack-and-pinion mechanism for expanding the honing segments

Definitions

  • the invention relates to a honing machine for honing holes in workpieces according to the preamble of claim 1.
  • Honing is a machining process with geometrically indeterminate cutting, in which a honing tool performs a two-component cutting movement and a constant surface contact between one or more cutting material bodies of the honing tool and the bore inner surface to be machined.
  • the kinematics of an expandable honing tool is characterized by a superposition of a rotational movement, a running in the axial direction of the bore, oscillating lifting movement and a widening movement, which leads to a change in the effective diameter of the honing tool.
  • At the bore inner surface usually results in a surface structure with intersecting machining marks.
  • Honing finished surfaces can meet extremely high dimensional and dimensional tolerances requirements, so that many high loaded sliding surfaces in engines or engine components, e.g. Cylinder surfaces in engine blocks or internal bore surfaces in injection pump housings can be machined by honing.
  • a honing machine suitable for honing is a machine tool whose work spindle is generally referred to as a honing spindle.
  • the honing spindle is movably mounted in a spindle housing, rotatable about its longitudinal central axis (spindle axis) by means of a rotary drive and oscillated in an oscillating manner parallel to the spindle axis by means of a lifting drive.
  • the honing spindle has a device for fastening a honing tool arrangement with an expandable honing tool. For the expansion of the honing tool there are different concepts.
  • an expanding drive is provided for expanding the honing tool, wherein the expander drive is connected to the spindle housing and acts via a widening gear on a running inside the honing spindle feed bar, which indirectly or directly causes a radial displacement of cutting material of the honing tool.
  • direct drives are known, especially in the design as a linear motor.
  • the lifting drive is a linear motor.
  • Direct drives are characterized by the potential to enable high speeds and accelerations of the machine axis driven thereby with simultaneous frictionless motion generation.
  • the invention has for its object to provide a honing machine, which enables economical production of honed workpieces with short cycle times at high quality.
  • a honing machine comprises a monocoque housing having a spindle housing portion serving as a spindle housing for accommodating the rotary drive and an expansion system portion integrally formed with the spindle housing portion for receiving the expander drive.
  • the widening drive is coupled via a widening gear to the infeed rod
  • the widening gear is preferably accommodated in the widening system section.
  • gearless expansion systems e.g. those in which the expansion drive is a plunger drive.
  • a monocoque housing offers over conventional solutions with separate housings for rotary drive and expander drive, among other things, the possibility of considerable weight savings, since due to the integrated design some housing parts, flanges, fasteners, etc. can be omitted.
  • drives In honing machines, drives must also apply weight and acceleration forces in addition to the process forces. Particularly in the case of highly dynamic machines and / or vertical axis movements, this leads to the fact that large drive powers must be kept available, the usually in turn accompanied by an increase in the moving mass. A weight saving creates considerably better conditions here.
  • a monocoque housing could e.g. as an aluminum casting (aluminum or aluminum alloy, e.g., Al-Mg).
  • Embodiments are considered particularly advantageous in which the monocoque housing is manufactured as a lightweight component using a lightweight construction material. If the monocoque housing movable with the honing spindle is a lightweight component, i. a component made using a lightweight construction material, then the mass moved can be significantly reduced over conventional solutions. A lower moving mass causes a higher acceleration of the mass is possible with the available power. This is particularly advantageous when honing, since there is an axial reciprocating component of motion during the stroke movement here. The benefit of vertical honing machines becomes even clearer, since, with a vertical arrangement of the axial movement, the reduction of the weight of the moving components additionally has a positive effect on the dynamic behavior of the honing machine.
  • a reduced moving mass can further contribute to reducing the energy consumption of a processing machine, so that here an increase in energy efficiency as an additional benefit arises.
  • the monocoque housing is produced using a fiber composite material.
  • Components made using (at least) one fiber composite can provide sufficient stiffness and good damping at very low mass.
  • a fiber composite material to manufacture or manufacture a honing machine movable honing machine component, it is possible to reduce the weight and inertia of the respective component as compared to a similarly designed and dimensioned metallic material component (eg, steel material) Aluminum material).
  • a similarly designed and dimensioned metallic material component eg, steel material
  • Aluminum material Aluminum material
  • a carbon fiber reinforced plastic is used as a fiber composite material, which may also be referred to as carbon fiber reinforced plastic (KFK).
  • CFRP carbon fiber reinforced plastic
  • KFK carbon fiber reinforced plastic
  • a fiber composite material is embedded in a matrix of plastic (for example, an epoxy resin, another thermoset or a thermoplastic).
  • the mechanical properties of the cured fiber composite benefit from the tensile strength of the carbon fibers.
  • the plastic matrix prevents the fibers from shifting against each other under load and also contributes to the damping properties of the material.
  • GFP glass fiber reinforced plastic
  • a lightweight construction component made using a fiber composite material may consist essentially entirely of the fiber reinforced plastic material.
  • the corresponding lightweight component it is also possible to design the corresponding lightweight component to have a core of low mass density enclosed by a sheath of fiber composite.
  • the core may consist essentially of a pressure-stable light material in which cavities are enclosed.
  • the monocoque housing and / or one or more other components movable with the honing spindle using a metal foam, for example an aluminum foam.
  • the rotatably mounted honing spindle is designed as a lightweight component.
  • the linear actuator comprises a linear motor with a fixed to a stand of the honing machine primary part and a relative to the primary linearly movable secondary part, which is integrated in a spindle housing carrying the carriage, wherein at least one component of the carriage is designed as a lightweight component.
  • the carriage may include a carriage plate, which is designed as a lightweight component.
  • the lightweight construction component in particular the monocoque housing, possibly also other components, is produced using a near net shape production process, which comprises at least one manufacturing step of laminating, foaming and / or 3D printing.
  • a near net shape production process which comprises at least one manufacturing step of laminating, foaming and / or 3D printing.
  • Such production methods generally come with relatively little post-processing or machining without machining and allow a fast, cost-effective production of even complex shapes.
  • the lightweight component has at least one connection point for connecting the lightweight component with another component an insert not consisting of a lightweight construction material.
  • the insert may, for example, consist essentially of steel, aluminum, magnesium, brass sing or titanium.
  • the ability to quickly and inexpensively manufacture even complex shapes using a lightweight construction material is utilized in some embodiments by providing at least one passageway leading from an entrance opening to an exit opening through which a flowable medium, or at least one, flows through the lightweight component Lead passed or can be passed.
  • Such passageways may be provided, for example, to pass coolant lubricant lines, pneumatic lines, electrical lines and / or the like. If such lines are passed through the interior of a lightweight component, they can be protected by the lightweight component against environmental influences and the entire honing machine also makes a "tidy" impression.
  • a passage can also directly as a conduit for a flowable medium, eg Coolant or coolant can be used.
  • the honing machine can be configured as a horizontal honing machine (with a horizontally oriented honing spindle) or as a vertical honing machine (with a vertically oriented honing spindle). Special advantages are offered in vertical honing machines, since there the influence of the weight on the lifting movement can be reduced by using lightweight components.
  • Fig. 1 shows some components of a honing machine according to a first embodiment of the invention, wherein Fig. 1A shows a longitudinal section and Fig. 1B shows a vertical plan view;
  • Fig. 2 shows a section of a honing machine according to a second embodiment of the invention
  • Fig. 3 shows schematically the structure of a honing machine of conventional construction. DETAILED DESCRIPTION OF THE EMBODIMENTS
  • FIG. 3 which in principle may be constructed as described in DE 102 25 514 B4.
  • a workpiece 390 is clamped, the bore 392 is to be honed using the honing tool 380.
  • the honing tool 380 is received in a cone at the lower end of a honing spindle 370 and is moved in operation of the honing machine together with the honing spindle in a vertical lifting movement up and down. As a result, the vertical movement component of the working movement of the honing tool is performed.
  • the honing spindle is movably mounted in a metallic spindle housing 330 and can be rotated about its spindle axis (longitudinal central axis) by means of a rotary drive in the form of an electric motor integrated into the spindle housing. As a result, the rotary component of the working movement of the honing tool is generated.
  • the honing spindle is driven in an oscillating manner by means of a linear actuator parallel to its spindle axis.
  • the lifting drive comprises a linear electric motor with a primary part attached to a stand 302 of the honing machine and a secondary part which can be moved linearly relative to the primary part.
  • the secondary part is integrated in a carriage 310 made of steel, which is guided on a vertical guide device linearly movable.
  • the carriage 310 carries the spindle housing 330, which thus can be moved vertically up and down together with the carriage.
  • the secondary part is the moving part and the primary part of the stationary part of an electric linear motor.
  • an electrical expansion drive is provided, which is coupled via a Aufweitgetriebe with an axially inside the honing spindle 370 guided infeed rod.
  • the metallic housing 350 which surrounds the expansion drive, is flanged to the top of the spindle housing.
  • the honing unit with spindle housing 330 and honing spindle 370 and the honing tool 380 accommodated therein are lowered so far that the honing stones 382 of the honing tool dip into the bore.
  • the honing spindle 370 is simultaneously reciprocated (that is, up and down) and rotated. The two working movements are the coordinated so that on the inner surface of the machined bore creates a typical for honing OberschliffGerman.
  • the vertical support 302 and the slides for the carriage 310 mounted thereon and the primary part of the linear motor belong to the fixed components of the honing machine.
  • the carriage 310 with the secondary part of the linear motor integrated therein and all components carried by the carriage are among those components which are moved together in the honing spindle during machining.
  • the stationary components can be designed in the same way as described in connection with FIG. 3.
  • the honing tool and the means for securing the honing tool assembly with an expandable honing tool at the tool-side end of the honing spindle may be structurally similar or identical to those of the prior art. Important differences lie in the structure and partly in the design of components of the honing machine, which are moved during machining together with the honing spindle.
  • the honing spindle 170 of the embodiment is rotatably supported within a housing 150 by means of rolling bearings so that it can rotate about its vertical spindle axis 172 relative to the housing 150.
  • the rotary drive 135 is designed as an electric direct drive and comprises a fixedly mounted in the housing 150 stator 135-1 and a mounted on the outside of the honing spindle 170 rotor 135-2, which can rotate within the stator.
  • the honing spindle 170 has an inner through-hole in which a feed rod 180 of the expansion system is guided axially movable.
  • the feed rod rotates with the speed of the honing spindle with this.
  • the axial movement of the Zustellstange is effected by means of a Aufweitantriebs 155, which is designed as an electric direct drive.
  • a stator 155-1 of the expanding drive is fixedly mounted with respect to the housing 150.
  • the rotatable relative to the stator rotor 155-2 is coupled to a spindle nut 157, the internal thread of which cooperates with the external thread of a threaded spindle 158 of the expansion drive.
  • the threaded spindle 158 is fixedly attached to a fixed housing 150 connected to the housing cover.
  • the spindle nut runs along the threaded spindle, whereby the (shorter) rotor is axially moved axially relative to the (longer) stator.
  • the spindle nut is coupled to the feed rod via a receiving sleeve 159 which rotates with the spindle nut and is rotatably mounted relative to the feed rod so that the axial movement of the spindle nut is transferred to the Zustellstange.
  • rotation of the rotor 155-2 of the expansion drive 155 relative to the stator causes axial movement of the feed rod 180 parallel to the spindle axis 172.
  • This delivery may be clocked or regulated.
  • the combination of spindle 158 and spindle nut 157 acts as a Aufweitgetriebe that converts the rotation of the rotor in an axial movement of the Zustellstange.
  • the housing 150 essentially consists of a single component which serves both as a housing for the rotary drive 135 of the honing spindle 170 and as a housing for the expander drive 155.
  • the housing 150 has a spindle housing section 150-1, which encloses the stator 135-1 of the rotary drive 335 for the honing spindle, as well as an integrally formed with the spindle housing section, smaller diameter expansion system section 150-2, the u.a. for receiving the expansion drive 155 is used.
  • This integration of several separately manufactured in the prior art components and then mounted together components in a single component is referred to here as a monocoque housing 150.
  • a plurality of components movable together with the honing spindle 170 are manufactured as lightweight components using at least one lightweight construction material.
  • the housing 150 is a one-piece, elongated hollow body, the wall portions of which are made using a fiber composite material, such as carbon fiber reinforced plastic (CFRP).
  • CFRP carbon fiber reinforced plastic
  • the outer and inner walls of the monocoque housing essentially consist of layer-laminated fiber composite material FV, while between the outer walls a core K with low mass density, which is filled for example by pressure-stable filler with glass beads or other stiff, lightweight hollow bodies (see detail magnification in Fig. 1A). In comparison to a housing made of steel material or another solid metallic material of the same dimensions, this results in a significant weight savings with at least constant rigidity.
  • the linearly guided on the stationary stand 102 slide 1 10 at the same dimension as a conventional slide much easier, since the slide plate 1 12 is made as an essential component of the carriage also as a lightweight component using a fiber composite material.
  • the integrated therein components, such as the secondary part of the linear motor for the lifting movement can be configured as in the conventional honing machine.
  • the carriage plate 1 12 extends from top to bottom continuous through channel 1 13, can be passed through the starting from a (not shown) upper media port, a cooling liquid for tool cooling. Further extending in the carriage plate 1 12 and the monocoque housing further through holes 1 14A, 1 14B, which lead from an upper media port through horizontal sections into the interior of the monocoque housing. These serve for the supply of cooling fluid for the cooling of the rotary drive 135. Through further vertical through-channels 15, electrical lines, e.g. for encoders or sensors.
  • Fig. 2 is similar or identical in most details to the embodiment of Fig. 1. A difference is in the configuration of the inner contour of the monocoque housing 250 in the region of the transition between the expansion system section 250-2 and the adjoining spindle housing portion 250-1 larger diameter.
  • the stator of the widening drive is supported axially on an annular collar 156 which, starting from the housing wall, protrudes inwards and surrounds a passage opening for the feed rod.
  • annular collar or this shoulder two forms are used in the production of the embodiment, namely a shape which extends from the top of the inner region to the shoulder (annular collar 156) and another form, which extends from the lower passage opening for the honing spindle reaches to the shoulder.
  • Fig. 2 eliminates this collar, which makes it possible to produce the monocoque housing 250 with only a single inner mold, which can be inserted from the side of the larger diameter and taken on this page also.
  • inner sleeve 255 which holds, among other things, the upper pivot bearing for the honing spindle, is continued in the direction of the smaller diameter and pulled inward at the end, so that a support surface for the stator is formed.
  • Glass fiber composites have a tensile strength of up to 1000 N / mm 2 at a density of about 2 g / cm 3 , depending on the direction of the fibers.
  • Carbon fiber composites have a tensile strength of up to 1400 N / mm 2 at a density of about 1.5 g / cm 2 .
  • Aramid fiber reinforced plastics have even lower densities of about 1.4 g / cm 3 at similar tensile strengths as carbon fiber reinforcement plastics.
  • Pure aluminum foams have a density of -0.5 g / cm 3 . With composite or sandwich materials appear about 1, 0 g / cm 3 realistic.
  • a material-appropriate design of the geometry of the components that can be moved using the honing spindle can help to exploit the potential of lightweight construction materials when constructing a honing spindle unit. This can i.a. mean that components can be designed as slim as possible and only in places that absorb forces or derive more material should be present.
  • a continuous pipe is possible, in which all components (spindle motor for generating the tool rotation, expansion gear for active tool delivery and clamping / releasing the tool in the machining spindle ”) as well as connecting elements and interfaces (cables, media) are integrated.
  • spindle motor for generating the tool rotation
  • expansion gear for active tool delivery and clamping / releasing the tool in the machining spindle
  • connecting elements and interfaces are integrated.
  • a near-net shape production makes it possible, with minimal post-processing, for example only on fits and screw-on surfaces, and subsequent assembly of preassembled individual modules to produce a mass and performance-oriented processing unit.
  • the monocoque housing derives the forces occurring as best as possible within the housing body. These aspects increase the accuracy of the processing unit.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Soil Working Implements (AREA)

Abstract

L'invention concerne une machine de rodage (100) pour le rodage d'alésages dans des pièces, la machine comprenant une broche de rodage (170) qui est montée mobile dans un boîtier de broche (130), peut être entraînée en rotation autour d'un axe de broche (172) au moyen d'un entraînement rotatif (150), peut être entraînée de manière oscillante parallèlement à l'axe de broche au moyen d'un entraînement alternatif et comprend, à une extrémité côté outil, un dispositif de fixation d'un ensemble d'outil de rodage comprenant un outil de rodage pouvant être élargi. L'invention concerne en outre un entraînement d'élargissement pour l'élargissement de l'outil de rodage, l'entraînement d'élargissement étant relié au boîtier de broche et étant accouplé à une tige d'avance (180) s'étendant à l'intérieur de la broche de rodage. La machine de rodage est caractérisée par un boîtier monocoque (150) qui comprend une partie boîtier de broche (150-1) servant de boîtier de broche pour recevoir l'entraînement rotatif (135) et une partie système d'élargissement (150-2) réalisée d'un seul tenant avec la partie boîtier de broche pour recevoir l'entraînement d'élargissement (155).
EP16820253.9A 2016-01-13 2016-12-21 Machine de rodage Active EP3402629B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
HRP20220874TT HRP20220874T1 (hr) 2016-01-13 2016-12-21 Brusna mašina

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016200295.3A DE102016200295A1 (de) 2016-01-13 2016-01-13 Honmaschine
PCT/EP2016/082093 WO2017121590A1 (fr) 2016-01-13 2016-12-21 Machine de rodage

Publications (2)

Publication Number Publication Date
EP3402629A1 true EP3402629A1 (fr) 2018-11-21
EP3402629B1 EP3402629B1 (fr) 2022-04-27

Family

ID=57708578

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16820253.9A Active EP3402629B1 (fr) 2016-01-13 2016-12-21 Machine de rodage

Country Status (6)

Country Link
US (1) US11389921B2 (fr)
EP (1) EP3402629B1 (fr)
CN (1) CN108883513B (fr)
DE (2) DE102016200295A1 (fr)
HR (1) HRP20220874T1 (fr)
WO (1) WO2017121590A1 (fr)

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US10531507B2 (en) * 2018-02-06 2020-01-07 Apple Inc. Link budget estimation on companion device
DE102019214869A1 (de) * 2019-09-27 2021-04-01 Kadia Produktion Gmbh + Co. Honmaschine
DE102019214867B4 (de) * 2019-09-27 2021-10-28 Kadia Produktion Gmbh + Co. Honmaschine
DE102019214873A1 (de) * 2019-09-27 2021-04-01 Kadia Produktion Gmbh + Co. Honmaschine
AT524824A1 (de) * 2021-02-23 2022-09-15 Trumpf Maschinen Austria Gmbh & Co Kg Elektromechanischer Spindelantrieb
DE102021206591A1 (de) 2021-06-25 2022-12-29 Kadia Produktion Gmbh + Co. Verfahren zum Werkzeugwechsel an einer Werkzeugmaschine sowie Werkzeugmaschine

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US3126672A (en) * 1964-03-31 Vertical honing machine
CH158900A (de) * 1931-10-27 1932-12-15 Kellenberger & Co L Honingmaschine.
US2268028A (en) 1939-08-09 1941-12-30 Barnes Drill Co Honing machine
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DE10213408A1 (de) 2002-03-26 2003-10-16 Linatec Kg Lineardirektantrieb
DE10225514B4 (de) * 2002-06-10 2005-02-17 Kadia Produktion Gmbh + Co. Maschine zur Feinstbearbeitung von Werkstücken durch Honen oder Feinstschleifen
EP2277662B1 (fr) 2005-11-25 2013-09-25 Nagel Maschinen- und Werkzeugfabrik GmbH Procédé destiné à empierrer des trous de forage tout comme outil à empierrer
GB2450445B (en) * 2006-03-13 2011-10-26 Honda Motor Co Ltd Tool head,machine tool and boring method of bore of cylinder block using the machine tool
JP4696004B2 (ja) * 2006-03-13 2011-06-08 本田技研工業株式会社 複合工作機械
JP5260139B2 (ja) 2008-05-22 2013-08-14 株式会社日進製作所 砥石接触感知方法およびその装置、ならびにホーニング加工方法およびホーニング盤
JP5323427B2 (ja) * 2008-09-09 2013-10-23 株式会社日進製作所 ホーニング加工方法およびホーニング盤
EP3098004B1 (fr) * 2011-07-20 2019-05-08 NSK Ltd. Dispositif de broche
DE102011108982A1 (de) 2011-08-01 2013-02-07 Roschiwal + Partner Ingenieur Gmbh Schlitten
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DE102013109947B4 (de) * 2013-09-11 2020-05-14 FISCHER Präzisionsspindeln GmbH Spindel
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Also Published As

Publication number Publication date
CN108883513B (zh) 2021-05-28
DE102016200295A1 (de) 2017-07-13
US11389921B2 (en) 2022-07-19
EP3402629B1 (fr) 2022-04-27
WO2017121590A1 (fr) 2017-07-20
DE202017000022U1 (de) 2017-01-20
HRP20220874T1 (hr) 2022-10-14
US20190001461A1 (en) 2019-01-03
CN108883513A (zh) 2018-11-23

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