EP0463427B1 - Honmachine - Google Patents

Honmachine Download PDF

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Publication number
EP0463427B1
EP0463427B1 EP91109259A EP91109259A EP0463427B1 EP 0463427 B1 EP0463427 B1 EP 0463427B1 EP 91109259 A EP91109259 A EP 91109259A EP 91109259 A EP91109259 A EP 91109259A EP 0463427 B1 EP0463427 B1 EP 0463427B1
Authority
EP
European Patent Office
Prior art keywords
honing
bores
adjusting
measuring
spindles
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.)
Expired - Lifetime
Application number
EP91109259A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0463427A2 (de
EP0463427A3 (en
Inventor
Wolf Dipl.-Ing. Nagel
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.)
Nagel Maschinen und Werkzeugfabrik GmbH
Original Assignee
Nagel Maschinen und Werkzeugfabrik 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
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Application filed by Nagel Maschinen und Werkzeugfabrik GmbH filed Critical Nagel Maschinen und Werkzeugfabrik GmbH
Publication of EP0463427A2 publication Critical patent/EP0463427A2/de
Publication of EP0463427A3 publication Critical patent/EP0463427A3/de
Application granted granted Critical
Publication of EP0463427B1 publication Critical patent/EP0463427B1/de
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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

Definitions

  • the invention relates to a honing machine, a honing station, a measuring station and a method for simultaneously honing or measuring at least two bores in a workpiece.
  • honing stations with two honing spindles arranged parallel to one another.
  • the distance between the two honing spindles corresponds to twice the distance between two cylinder bores.
  • the cylinder block is placed at a certain point under the honing spindles and the honing station now first processes the first and third cylinder bores simultaneously, for example.
  • both honing spindles are laterally shifted laterally by the distance between two cylinder bores, so that the second and fourth cylinder bores are now arranged under the honing spindles.
  • the second and fourth cylinder bores are then machined in this position.
  • Both honing spindles are therefore constantly shifted back and forth between two extreme positions, whereby three such positions may also be present in a six-cylinder engine.
  • an engine block is to be machined in which the distance of the first bore from a reference point, for example the end face of the engine block, is different, the two extreme positions between which the honing spindles are moved must be changed. If the new engine block also has other mutual distances between the individual cylinder bores, the distance between the two honing spindles must also be changed. This requires manual intervention by an operator, i.e. a conversion of the entire honing station. If engine blocks of different dimensions are to be machined in rapid succession at a honing station or honing machine, this is no longer possible with a manual intervention.
  • the invention has for its object to provide a honing station and a method that enables the machining of engine blocks with different bore distances and basic distances from a reference surface without manual intervention.
  • the invention proposes a honing station and a method with the features of claims 1 and 14, respectively. Further training is the subject of subclaims.
  • the honing station proposed by the invention, it is possible not only to switch between machining a first and a second pair of cylinder bores as before, but also to adjust the position at which the first and second pairs are arranged.
  • the two honing spindles are always moved back and forth together between the two possible machining operations.
  • the mutual spacing of the two spindles is adjusted with the second adjusting device and, if necessary, the positions between which the first adjusting device pushes the two honing spindles back and forth are adjusted.
  • the two adjusting devices can be actuated independently of one another.
  • the second adjustment device only has to take action if a changeover to another type of engine block is required.
  • the honing station has a control device for controlling the adjustment drives or adjustment devices.
  • This control device can either be operated by an operator who, as soon as a new type of engine block arrives, switches over to a different program.
  • the honing station it is also possible for the honing station to have an identification device for the engine block and to switch itself to this when a type of engine block is detected.
  • the adjustment drive has a stepper motor.
  • the device can then be set to a new dimension by emitting a specific signal sequence.
  • the honing station has two stops which cooperate with limit switches for switching off the first adjustment drive and which are designed to be adjustable. These stops are used to define the locations for the first and second pair of holes to be honed. When switching to another engine block these stops can be moved. Of course, it does not have to be physical attacks. It is also possible to design these stops by means of light barriers or by counting a displacement sensor.
  • the invention therefore proposes to design a measuring station for the simultaneous measurement of two bores in practically the same way as the honing station itself, i.e. to provide the two measuring devices with adjusting devices, of which one adjusting device moves both measuring devices together, while the second can only change the mutual distance. Details of these adjustment devices can be as for the honing station itself.
  • the invention proposes a method according to claim 15.
  • such a honing station and / or such a measuring station can be part of a honing machine for processing workpieces with several bores transported on a transfer line.
  • the honing machine has two honing stations, of which, for example, the first performs pre-honing and the second carries out finish honing.
  • a continuous rail can be used to move both honing stations or the honing station and the measuring station.
  • a second headstock 6 is slidably guided in the longitudinal direction of the carriage 3 and the rail 2.
  • This second headstock 6 also contains one Honing spindle 7, which corresponds to the honing spindle 5.
  • an adjusting device 8 is provided which has a drive motor 9. The adjusting device 8 serves to move the second headstock 6 on the carriage 3 relative to the headstock 4, so that the distance between the two headstocks 4, 6 from one another and thus the distance between the two honing spindles 5, 7 can be changed.
  • the axes of the two honing spindles are represented by the dash-dotted lines 10 in FIG. 1.
  • a first adjustment drive 11 which also has a drive motor 12, is used to move the slide on the rail 2.
  • the actuation of the drive motor 12 causes the two headstocks 4, 6 to be displaced along the rail 2 while maintaining their mutual distance.
  • the honing station is arranged on a schematically indicated transfer line 13. Individual engine blocks are brought up in cycles on transfer line 13 and placed under the honing spindles.
  • the transfer line 13 is always clocked at a fixed distance, so that, after each clock cycle, an engine block 14 is in the position shown below the honing station. With the engine block 14 stationary, the first and third bores are then honed, then the honing spindles are withdrawn and, with the aid of the drive motor 12, both headstocks are simultaneously moved into a position which corresponds to the second pair of cylinder bores. After editing, both The spinning sticks are moved back together to the starting position and a new motor block 14 is brought about on the transfer line 13.
  • FIGS. 2 and 3 show the two headstocks 6, 4 with the indicated spindles 7 and 5.
  • the adjustment drive 8 is indicated, which can be used to change the mutual distance between the two headstocks 6, 4.
  • the engine block 14 contains four parallel, equidistant cylinder bores 16.
  • the honing station is moved into its one end position by the adjustment drive 11, which corresponds to the first and third cylinder bores 16 calculated from the left.
  • the adjustment drive 11 moves the two headstocks 4, 6 while maintaining their mutual distance into the right end position, which is shown in FIG.
  • the second pair of holes 16 can now be machined.
  • the adjusting drive 11 shifts the arrangement back into the position shown in FIG. 2, so that the next engine block 14 delivered on the transfer line 13 can be machined in the same way.
  • the engine blocks 14 are always placed in the same place by the transfer line 13.
  • the adjustment drive 11 thus serves to move the two headstocks back and forth between two end positions. These end positions can, for example, by stops and with limit switches interacting with the stops are defined.
  • the arrow 18 with the two tips in FIGS. 2 and 3 shows the two positions between which the drive 11 moves the two spindles together when machining one type of engine block 14 with respect to the fixed reference line 15.
  • FIG. 4 If an engine block now approaches on the transfer line, which has different mutual distances of the cylinder bores from one another and / or a different distance of the first bore from the end face, the position shown in FIG. 4 occurs.
  • the engine block 14 'shown in Figure 4 has larger distances between the cylinder bores.
  • the adjusting device 8 now comes into effect, which changes the mutual distance between the two headstocks 6, 4 and thus the two honing spindles 5 and 7 from one another.
  • the distance is therefore increased. If several motor blocks of size 14 'are now machined, the displacement movement between the two pairs of bores 16 is again effected by the adjustment drive 11, while the adjustment drive 8 remains inoperative until an engine block with a different bore distance is brought up again.
  • the arrow 19 indicates between which positions the drive 8 the distance between the two honing spindles 5 and 7 changed from one another between machining two types of engine blocks 14.
  • the control of the two adjustment drives 11, 8 can take place, for example, via a control device which has a control panel. There the distances can under certain circumstances be entered directly by an operator in exact dimensions. It is of course also conceivable that the control device has an automatic reading device that can read markings on the engine block and can then adjust itself to the new engine block based on stored information. What has been described with reference to FIGS. 1-4 for honing processing can also be used according to the invention in the same way in a measuring station in which instead of the two honing spindles 5, 7 there are two measuring devices which can be lowered into the bores in order to close them measure up. Such an adjustment option for processing different engine block types is also useful here.

Landscapes

  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
EP91109259A 1990-06-28 1991-06-06 Honmachine Expired - Lifetime EP0463427B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4020614 1990-06-28
DE4020614A DE4020614A1 (de) 1990-06-28 1990-06-28 Honmaschine

Publications (3)

Publication Number Publication Date
EP0463427A2 EP0463427A2 (de) 1992-01-02
EP0463427A3 EP0463427A3 (en) 1992-07-29
EP0463427B1 true EP0463427B1 (de) 1994-11-17

Family

ID=6409264

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91109259A Expired - Lifetime EP0463427B1 (de) 1990-06-28 1991-06-06 Honmachine

Country Status (3)

Country Link
EP (1) EP0463427B1 (es)
DE (2) DE4020614A1 (es)
ES (1) ES2064004T3 (es)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4330686A1 (de) * 1993-09-10 1995-03-16 Nagel Masch Werkzeug Verfahren und Vorrichtung zum Transportieren von Werkstücken
DE4413654C2 (de) * 1994-04-20 2000-03-02 Nagel Masch Werkzeug Vorrichtung zur Honbearbeitung von Bohrungen mit unterschiedlichen Nenndurchmessern in Werkstücken
DE4413645C2 (de) * 1994-04-20 1998-07-16 Nagel Masch Werkzeug Verfahren und Vorrichtung zur Honbearbeitung von Bohrungen mit unterschiedlichen Nennmaßen in Werkstücken
DE102006034497A1 (de) * 2006-07-19 2008-01-24 Nagel Maschinen- Und Werkzeugfabrik Gmbh Verfahren zur kombinierten Feinbohr- und Honbearbeitung sowie Bearbeitungsanlage zur Durchführung des Verfahrens

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1458528A (en) * 1922-01-14 1923-06-12 Victor J Emery Grinding machine
US2356223A (en) * 1942-06-12 1944-08-22 Norton Co Honing machine
GB806853A (en) * 1956-03-14 1958-12-31 Serck Radiators Ltd Multi-spindle drilling machines
US4185943A (en) * 1978-04-24 1980-01-29 Ameco Corporation Drilling and tapping machining apparatus
US4198181A (en) * 1978-09-25 1980-04-15 Smelser James M Apparatus for drilling holes in "H" beams
US4907372A (en) * 1987-10-26 1990-03-13 Micromatic Operations Inc. Cylinder bore finishing apparatus tilt fixture
DE3740597A1 (de) * 1987-11-30 1989-06-08 Grieshaber Masch Flexible mehrstationige maschine zur bearbeitung von rotationssymmetrischen oberflaechen

Also Published As

Publication number Publication date
EP0463427A2 (de) 1992-01-02
ES2064004T3 (es) 1995-01-16
EP0463427A3 (en) 1992-07-29
DE4020614A1 (de) 1992-01-09
DE59103525D1 (de) 1994-12-22

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