EP0151444B1 - Schleifmaschine zum Schleifen von Werkstücken, insbesondere Dekorschleifmaschine zum Schleifen von Hohlgläsern - Google Patents

Schleifmaschine zum Schleifen von Werkstücken, insbesondere Dekorschleifmaschine zum Schleifen von Hohlgläsern Download PDF

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Publication number
EP0151444B1
EP0151444B1 EP85100798A EP85100798A EP0151444B1 EP 0151444 B1 EP0151444 B1 EP 0151444B1 EP 85100798 A EP85100798 A EP 85100798A EP 85100798 A EP85100798 A EP 85100798A EP 0151444 B1 EP0151444 B1 EP 0151444B1
Authority
EP
European Patent Office
Prior art keywords
grinding
workpiece
wheel stand
axis
spatial axis
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
Application number
EP85100798A
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German (de)
English (en)
French (fr)
Other versions
EP0151444A2 (de
EP0151444A3 (en
Inventor
Wilhelm König
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.)
Diamant Boart NV SA
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to AT85100798T priority Critical patent/ATE37815T1/de
Publication of EP0151444A2 publication Critical patent/EP0151444A2/de
Publication of EP0151444A3 publication Critical patent/EP0151444A3/de
Application granted granted Critical
Publication of EP0151444B1 publication Critical patent/EP0151444B1/de
Expired legal-status Critical Current

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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
    • B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
    • B24B19/02—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding grooves, e.g. on shafts, in casings, in tubes, homokinetic joint elements
    • B24B19/03—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding grooves, e.g. on shafts, in casings, in tubes, homokinetic joint elements for grinding grooves in glass workpieces, e.g. decorative grooves

Definitions

  • the invention relates to a grinding machine for grinding workpieces, with at least one grinding block crying on a workpiece clamping device, with a plurality of stationary processing units each having at least one grinding wheel, with a conveying device for the at least one grinding block, with which the grinding block can be moved past the processing units in a clocked manner , as well as with adjusting devices controlled by drive elements, of which a first adjusting device provided on each processing unit for pivoting the grinding wheel about a first spatial axis running perpendicularly or transversely to the axis of rotation of the grinding wheel and a second adjusting device provided on the at least one grinding stand for rotating the workpiece relative to the grinding wheel around a second spatial axis formed by the workpiece axis, and of which a third adjusting device for achieving a relative movement between the workpiece and the grinding wheel if disk serves in the direction of the second spatial axis.
  • the invention preferably relates to a decorative grinding machine for hollow glasses or similar workpieces.
  • Known grinding machines have a relatively complicated structure, in particular in the case of known grinding machines in which a plurality of groups of workpieces or hollow glasses can be processed simultaneously in a plurality of groups of processing units in the same manner or can be provided with a decorative part or individual decor , the necessary relative movements between the grinding wheel and the workpiece are achieved by moving the individual grinding units having the grinding wheels on the processing units, or the workpieces are moved on a common heavy carriage. Since relatively high masses have to be moved, complex and heavy constructions result. Due to the ever increasing demands on the complexity and quality of an end product (finished workpiece), it is necessary to make the machining processes ever more diverse or to adapt a grinding machine to an extremely wide range of end products in an increasingly complex manner. Known grinding machines or decorative grinding machines do not meet this requirement either.
  • the invention is based on the object of demonstrating a grinding machine for grinding workpieces and in particular a decorative grinding machine for grinding hollow glasses which (grinding machine) is capable of having a relatively simple structure and, above all, of a construction which is optimized in terms of production technology to meet ever increasing demands on the complexity and quality of the end product and to carry out the most diverse work processes with high quality and / or accuracy.
  • a grinding machine of the type described at the outset is designed according to the invention in such a way that coupling pieces are provided on at least one grinding block and on the processing units in order to mechanically couple the grinding block to a processing unit in the standstill phase of the conveyor by moving transversely to the conveying direction of the conveyor or to lock that the at least one grinder block has the third adjustment device (to achieve the relative movement between the workpiece and the grinding wheel in the direction of the second spatial axis or to achieve the workpiece feed) and a fourth adjustment device with which the workpiece clamping device runs in a third one running perpendicular to the second spatial axis
  • the spatial axis can be pivoted such that separate drive elements for the adjusting devices are provided on each processing unit, of which the drive elements for the adjusting device provided on the grinder block each have a first coupling element, and that the at least one grinder block has second coupling elements, each of which is drive-connected to an adjusting device on the grinder block and engages with a first coupling element in each case when the grinder
  • the second adjusting device effects the workpiece or glass rotation about the workpiece or glass axis, which is preferably perpendicular to the conveying direction of the conveying device, the third adjusting device the workpiece or glass feed relative to the grinding wheel of a processing unit , the fourth adjustment device a workpiece or. Glass pivoting relative to a grinding wheel Processing unit or relative to the axis of rotation of this grinding wheel and the first adjusting device a tangential pivoting of the grinding wheel relative to the workpiece or the workpiece axis.
  • the arrangement is such that the third spatial axis is radially opposite the engagement surface of the grinding wheel with respect to the workpiece axis, i.e.
  • the third spatial axis simultaneously intersecting the second spatial axis about which the workpiece can be rotated relative to the grinding wheel (workpiece axis).
  • the adjustment devices for all other controllable axes are provided on the at least one bench grinder, this results in a particularly simple construction and in particular also a construction in which the adjustment without the Moving or swiveling large masses is possible.
  • the drive connection in particular of the adjusting devices on the at least one grinding stand with the associated drive elements or with the second coupling elements, is preferably carried out in a particularly simple manner in the grinding machine according to the invention by flexible shafts, with the (errors) being avoided in order to avoid errors in the setting Torsional errors of the flexible shafts and / or a backlash and drive are to be attributed, preferably a backlash-free reduction gear with a high reduction ratio is interposed between each flexible shaft and the associated adjusting device. Torsional errors in the flexible shafts can then practically no longer affect the setting of the workpiece.
  • Suitable reduction gears are, for example, gears that are known under the name "harmonic drive gears".
  • the grinding wheel or the grinding unit on the individual processing units is preferably not only rotatable or pivotable about the first spatial axis, but can also be displaced in this first spatial axis with the aid of a fifth adjusting device, for example with the aid of a drive element simple three-phase brake motor, which is only equipped with an encoder, so that stepless positions can be selected.
  • this adjustment preferably does not form a controllable axis, since the grinding machine according to the invention does not fundamentally require movement of the grinding wheel or the grinding unit in this axis direction during grinding, in particular not because the pivot point for the axis pivoting is always in the axis of the axis Grinding wheel rotation lies and the slight differences on the at least one grinding stand are compensated for by a device controlling the grinding pressure, with which the delivery of the workpiece to the grinding wheel is corrected when the workpiece is pivoted about the third spatial axis or when the workpiece is moved in the direction of the second spatial axis can be.
  • This correction is preferably carried out in a computer-controlled manner in the grinding machine according to the invention, the drive elements for the individual adjusting devices also preferably being controlled by a computer or a computer unit according to a predetermined program.
  • a plurality of grinding blocks are preferably provided, each of the completely identical grinding blocks having the adjusting devices provided on the grinding block and also being provided with its own device which generates the grinding pressure, for example by a hydraulically operated piston-cylinder element (oil cylinder with Piston) or is formed by a membrane cylinder.
  • the delivery or the lifting process of this device generating the grinding pressure is designed so that, depending on the glass position, hydraulic fluid or oil is displaced or sucked out of the hydraulic cylinder during grinding, so that the individual position at the moment of lifting each workpiece or hollow glass is detected and the lifting process acts immediately on each workpiece through a defined oil surge.
  • the lifting process is therefore carried out individually for each workpiece, even if, in the presence of a large number of grinding blocks, several grinding blocks are each assigned to a group of processing units which carry out the same machining processes on several workpieces simultaneously or simultaneously.
  • the conveyor device is, for example, a rotor which is driven in a clocked manner about a vertical axis.
  • a dressing device for the grinding wheels of the processing units is also provided on the conveying device, in terms of design, this dressing device largely corresponds to the at least one grinding block.
  • the dressing device is designed, for example, so that instead of the second adjusting device used to rotate the workpiece, a drive motor with a Spindle is provided which has a dressing disc, for. B. has a ceramic disc.
  • the fourth adjusting device can then bring the dressing wheel into a required angular position with respect to the axis of rotation of the grinding wheel to be dressed, the third adjusting device, which is used for the workpiece feed in the grinder block, to produce an oscillating movement of the dressing wheel relative to the grinding wheel to be dressed.
  • the dressing wheel is fed to the grinding wheel to be dressed, for example, by an additional adjusting device which is controlled by the drive element for the workpiece rotation and which is provided in the dressing device instead of the device generating the grinding pressure.
  • the decorative grinding machine shown in the figures consists of a rotor 1, which is rotatably mounted about a vertical axis S on a column 2 of a machine frame 3.
  • the rotor 1 is clocked by a drive 1 'about the axis S in the direction of the arrow A, that is to say it is driven step by step, in the embodiment shown in such a way that the rotor 1 is rotated 90 ° further in each movement phase following a standstill phase.
  • a plurality of processing units 4 are arranged in a stationary manner on the machine frame 3, specifically a total of 24 processing units 4 in the embodiment shown, which are each grouped into three groups I, II and 111, each with eight processing units 4.
  • the control is such that the processing units 4 of each group simultaneously carry out the same processing on eight hollow glasses 5 to be processed.
  • a plurality of grinding blocks 6 are fastened to this rotor, in the embodiment shown a total of 32 grinding blocks 6, which form four groups la, Ila, purple, and IVa of eight grinding blocks 6 each, with each of the standstill phases of the Rotor 1, the grinder blocks 6 of three groups are each arranged under a processing unit 4 and the grinder blocks 6 of a group lie opposite a loading position with a loading device 7 provided on the machine frame 3.
  • the arrangement of the grinder blocks 6, the processing units 4 and the loading device 7 on the rotor or around the rotor is further made such that the processing units 4 and the grinder blocks 6 of all groups each have the same angular distance from one another, the distance between the last processing unit 4 of a group and the first processing unit of the following group or between the last grinding block 6 of a group and the first grinding block 6 of the following group is equal to twice the angular distance, ie in the embodiment shown, the angular distance between the individual processing units 4 or the individual grinding blocks 6 within a group is 10 °, while the angular distance between two adjacent groups is 20 °.
  • a chain transport system can also be provided, particularly in the case of larger units, so that the machine becomes a "production line” and thereby maintains tolerable external dimensions.
  • Each processing unit 4 has a vertical stand frame 8 fastened to the machine frame 3, on the side of which facing the rotor 1 a slide 9 is held so as to be displaceable in the vertical direction.
  • This slide 9 can be moved up and down in the vertical direction with an adjusting device 10 having a drive motor.
  • On the carriage 9 an arm or arm 11 protruding in the horizontal direction is fastened, on which a grinding unit 12 is rotatably mounted about a vertical axis V, the mounting being such that the grinding unit rotates about the axis V or Can perform pivoting movement of about 300 °.
  • the limitation of the rotating or swiveling movement of the grinding unit 12 to 300 ° has among other things. the advantage that the water required for grinding can be supplied with a fixed hose connection.
  • the grinding unit 12 consists essentially of the drive motor 13 and a grinding wheel 14 driven by the latter, which is fastened to one end of a shaft which is rotatably mounted in an arm 15 which is angled several times.
  • the arm 15 is fastened to the housing of the drive motor 13 and in this arm the gear elements are provided which establish a drive connection between the motor and the shaft or spindle carrying the grinding wheel 14.
  • the shaft carrying the grinding wheel 14 extends in an axial direction perpendicular to the axis V, i.e. the grinding wheel 14 rotates around a horizontal axis which intersects the axis V in the region of the grinding wheel 14.
  • a disk 16 is attached to the arm 15 below the arm 11, concentrically with the axis V, which is connected via a toothed belt 17 to a disk 18 on the output shaft of a reduction gear 19 as a drive stands.
  • the input shaft of the reduction gear 19 is connected via a flexible shaft 20 to a drive element 21 on the stand frame 8.
  • the backlash-free reduction gear 19 which has, for example, a reduction ratio of 1:85 or 1: 150, any errors that occur during the adjustment or rotation of the grinding unit 12 about the axis V due to the torsion of the flexible shaft 20 or a possibly. Play in the drive could result so greatly reduced that such errors have practically no effect.
  • three coupling elements 22 are provided on the side facing the rotor 1, each of which is fastened to the shaft of a drive element 23, 24 or 25.
  • the grinding block 6 consists essentially of a carriage 26 which is attached to the rotor 1 so as to be displaceable radially to the axis S, ie in the horizontal direction in accordance with the double arrow B.
  • a pneumatically or hydraulically actuable piston-cylinder element 27 is used to move the slide 26 in the direction of the double arrow B.
  • an intermediate support 32 is pivotally mounted at 31 about an axis running parallel to the axis of the hinge pin 29.
  • the support frame 30 preferably has two parallel to one another and at a distance from one another arranged legs 30 "on both sides of the intermediate carrier 32 and at the ends of which with its longitudinal extension in approximately radially to the axis S, trough or trough-like intermediate carrier 32 is pivotally supported, each with a hinge pin lying axially with the axis 31.
  • an adjusting device 33 is used, which essentially consists of a worm wheel 34 rotatably mounted on the support frame 30 and a toothing 35 which is in engagement with this worm wheel and which on the intermediate support 32 or on one of the latter Approaching this intermediate carrier 32 is provided at the bottom.
  • the input shaft of the reduction gear 44 is connected to a flexible shaft 45 'via an angular gear.
  • the upper end of the piston rod of a hydraulic piston-cylinder element 45 is supported, which (piston rod) can be moved up and down in the vertical direction and through the (piston rod) of the support frame 30 for pressing the hollow glass 5 against the grinding wheel 14 is pivotable about the hinge pin 29.
  • the arrangement is also such that the axis 31 and the point of engagement of the piston rod of the piston-cylinder element 45 are approximately below the grinding wheel 14. In the position of the slide 26 shown in FIG.
  • the axis 31 is offset radially inward from the center plane of the grinding wheel 14 slightly to the axis S, while the point of application of the piston-cylinder element 45 on the support frame 30 is a somewhat smaller distance from the axis S has as the axis 31.
  • a piston-cylinder element 45 another element having a similar effect, for example a membrane cylinder, can also be used.
  • the reduction gear 38 and 44 also (similar to the reduction gear 19) again have a large reduction ratio and, like the reduction gear, ensure that torsional errors of the flexible shafts 37, 40 and 45 practically do not occur when the carbon glass 5 is set with respect to the grinding wheel 14 of the adjusting devices 33 and 41 or with the aid of the reduction gear, as described above in connection with the reduction gear 19.
  • the ends of the flexible shafts 37, 40 and 45 'remote from the reduction gears 36, 38 and 44 are connected to coupling elements 46 which then engage the coupling elements 22 when the carriage 26 is out of its right position shown in FIG. 2 with the aid of the piston-cylinder element 27 is shifted to the left (into the working position).
  • the hollow glass held on the clamping device 39 can perform three movements relative to the grinding wheel 14, namely a glass rotation by one direction the longitudinal extension of the intermediate support 32, the spatial axis (using the reduction gear 38 and the associated flexible shaft 40), a glass feed in the direction of the longitudinal extension of the intermediate support 32 using the adjusting device 41 and a pivoting movement about the axis 31 perpendicular to the glass feed using the adjusting device 33 If the carriage 26 is in the position shown in FIG.
  • the drive elements 23, 24 and 25 are in a predetermined position by fixing devices (not shown in more detail) , for example Ise electromagnetically actuated fixing devices fixed.
  • All drive elements 21, 23, 24 and 25 of the processing units 4 of a group I, II or 111 are each controlled by a computer unit 49, in such a way that when the grinders 6 are coupled to this group, the same machining steps are carried out on the glasses 5 clamped there be performed.
  • the computer units 49 are monitored by a central computer unit 50 which then for example also controls the rotation of the rotor 1.
  • the individual computer units 49 also control the setting devices 10 (for the height adjustment of the grinding wheel 14), the setting devices 10 being each formed, for example, by a simple three-phase brake motor which is only equipped with an encoder, so that the computer unit has stepless positions can be selected.
  • the three-phase brake motor in question is not equipped as a controllable axis, since the design of the decorative grinding machine does not require any movement that may be required during grinding.
  • the axis adjustment of the glass 5 is realized in the grinder block 6.
  • the axis 31, about which the pivoting takes place, is always exactly below the axis of rotation of the grinding wheel 14 when a grinder block 6 is coupled to a processing unit 4.
  • each group of processing units 4 is assigned a computer unit 49, which is monitored by the central computer unit 50, each group of processing units can be operated completely independently and completely independent decors or decorative parts can be created there, based on in the computer unit 49 entered programs. These programs can be created or tested outside of the decorative grinding machine, specifically on a test device consisting of a processing unit 4 and a grinder block 6, the two parts of the test unit mentioned at the same time also being available as exchange units for any defects in the decorative grinding machine .
  • the loading device 7 is first moved from the side to one of the grinding blocks 6 located in the loading position, in such a way that the coupling pins 47 also provided on the loading device 7 with the coupling elements 48 of this grinder block 6 come into engagement.
  • the intermediate carrier 33 provided with the reduction gear 38 and the clamping device 39 is pressed against a centering arm 51 of the loading device 7 via the piston-cylinder element 45, so that the latter forms a rigid unit with the relevant grinding stand.
  • a pushing device 52 is now used to move a glass 5 out of the loading device 7 against the clamping device 39, on which the glass 5 is held by vacuum or negative pressure.
  • the loading device 7 then moves to the next grinding block 6 located in the loading position, and the described loading process is repeated there.
  • a particular advantage of the loading device described is that the glass 5 in question can be brought onto the clamping device 39 exactly axially by the fixed connection between the loading device 7 and the grinder bracket 6, so that it is kept as impact-free as possible for the following processing operations. If eight glasses 5 are placed on the eight grinding blocks 6 in the loading position, the machine receives a start command. The eight glasses 5 then move under the first group of processing units 4.
  • the machine receives a new start command, ie the rotor 1 rotates again about the axis S through an angular range of 90 °, so that the third group of eight glasses 5 under group I of the processing units 4 arrives.
  • the first group of eight glasses 5 has reached group 111 of processing units 4 and the machine is fully equipped.
  • the three groups I, 11 and III are started and the first group of eight glasses 5 reaches the loading position as finished glasses.
  • the finished cut glasses are now removed and each grinding block 6 at the loading position is fitted with a new, non-cut glass 5.
  • the grinding time for eight glasses 5 is that which is determined by the longest working processing unit 4 of groups I and 111.
  • the last grinder block 6 of a group of grinder blocks has an angular distance from the first grinder block of the adjacent group which is twice as large as the angular distance of the grinder blocks 6 within a group. This is necessary because a distance must remain between the individual groups I, II and III of the processing units 4 so that an individual grinding head or grinding wheel movement is possible in the individual groups I, II and III. There is thus a gap between the individual groups la, IIa, Illa and IVa of grinding blocks 6, into which a dressing device 53 can be inserted, as is shown in FIG. 5.
  • This dressing device which is brought up to the individual machining units 4 instead of the grinder blocks 6 in a predetermined time rhythm in order to dress the grinding wheels 14 with the aid of a dressing wheel 54, is constructed in the same way as a grinder block 6, so that in FIG the same parts, the same reference numerals as in Figures 2 to 4 are used.
  • a most important difference compared to a grinding block 6 is that on the intermediate carrier 32 instead of the reduction gear 38, a motor 55 in the longitudinal direction of the intermediate carrier, i.e. is guided radially displaceable to the axis S and can be moved back and forth with the aid of the setting device 41, the drive motor 55 carrying the ceramic dressing disk 54 on its shaft or spindle, which is also in the direction of the longitudinal extent of the intermediate carrier 32.
  • the dressing unit 53 is coupled to this processing unit in accordance with a grinding block 6.
  • the inclined position of the dressing wheel 54 which (inclined position) corresponds to the angle of the diamond grinding wheel 14, is set via the adjusting device 33.
  • the setting device 41 generates an oscillating movement which moves the dressing wheel 54 past the grinding wheel 14.
  • the dressing wheel 54 which is driven in rotation, trims one flank of the rotating grinding wheel 14.
  • the grinding wheel 14 is rotated by 180 ° with the aid of the drive element.
  • the feed of the dressing wheel 54 takes place via an adjusting device 56, which is provided instead of the piston-cylinder element 45 and whose input shaft is connected to the flexible shaft 40, via which the glass rotation takes place in the grinder blocks 6.
  • the adjusting device 56 consists of a threaded spindle-like part 57 with a fine thread, which (part) is moved up and down in the vertical direction by a nut thread piece in accordance with the rotary movement transmitted via the flexible shaft 40 and thereby pivots the support frame 30 around the hinge pin 29.
  • the individual drive elements 23, 24 and 25 are controlled, for example, by the computer unit 49 according to a specific dressing program.
  • a dressing device 53 or several such devices, for example three dressing devices, can be provided in the decorative grinding machine.
  • the grinding wheel 14 can optimally stay on the machine longer, i.e. Tolerance errors only lead to diamond losses on the grinding wheel 14 once as a result of the first dressing.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
EP85100798A 1984-02-03 1985-01-26 Schleifmaschine zum Schleifen von Werkstücken, insbesondere Dekorschleifmaschine zum Schleifen von Hohlgläsern Expired EP0151444B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85100798T ATE37815T1 (de) 1984-02-03 1985-01-26 Schleifmaschine zum schleifen von werkstuecken, insbesondere dekorschleifmaschine zum schleifen von hohlglaesern.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19843403720 DE3403720A1 (de) 1984-02-03 1984-02-03 Schleifmaschine zum schleifen von werkstuecken, insbesondere dekorschleifmaschine zum schleifen von hohlglaesern
DE3403720 1984-02-03

Publications (3)

Publication Number Publication Date
EP0151444A2 EP0151444A2 (de) 1985-08-14
EP0151444A3 EP0151444A3 (en) 1986-05-21
EP0151444B1 true EP0151444B1 (de) 1988-10-12

Family

ID=6226643

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85100798A Expired EP0151444B1 (de) 1984-02-03 1985-01-26 Schleifmaschine zum Schleifen von Werkstücken, insbesondere Dekorschleifmaschine zum Schleifen von Hohlgläsern

Country Status (3)

Country Link
EP (1) EP0151444B1 (enrdf_load_stackoverflow)
AT (1) ATE37815T1 (enrdf_load_stackoverflow)
DE (1) DE3403720A1 (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3625565A1 (de) * 1986-07-29 1988-03-03 Hauni Werke Koerber & Co Kg Verfahren zum schleifen gekruemmter flaechen an werkstuecken

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3739420C1 (en) * 1987-11-20 1988-09-15 Koenig Gmbh W Profile tool for polishing decorative ground surfaces on hollow glassware or similar workpieces
DE3904686C1 (en) * 1989-02-16 1989-08-24 Wilhelm 8372 Zwiesel De Koenig CNC-machine for grinding workpieces with curved surfaces, in particular turbine blades, and also for grinding and polishing decorative grooves on hollow glassware or similar workpieces
GB9008685D0 (en) * 1990-04-18 1990-06-13 Leicester Polytechnic Apparatus for brilliant cutting of glass
DE4114086C1 (en) * 1991-04-30 1992-10-29 Walter Poeting Ingenieurbuero Gmbh & Co Kg, 4006 Erkrath, De Drinking glass, vase etc. decorative grinding machine - has grinding wheel support on grinding head, displaceable on vertical guide
DE10255423A1 (de) * 2002-11-28 2004-06-17 Saint-Gobain Diamantwerkzeuge Gmbh & Co. Kg System und Verfahren zum Schleifen von Glas und zum Abrichten einer Glasschleifscheibe
CN114918827B (zh) * 2022-06-08 2023-07-28 南京理工大学 一种砂轮修整电主轴装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1453803A (en) * 1923-05-01 Harbor city
FR1438931A (fr) * 1965-07-06 1966-05-13 Appareil automatique destiné à la gravure des verres à boire et autres
DE7406370U (de) * 1974-02-23 1975-08-14 Poeting W Kg Schleifmaschine fuer die anbringung von dekorationsschliffen an hohl und pressglaesern
DE8203790U1 (de) * 1982-02-12 1983-05-26 J. Walter Co. Maschinen GmbH, 8640 Kronach Vorrichtung zum gleichzeitigen Dekorschleifen mehrerer Hohlgläser

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3625565A1 (de) * 1986-07-29 1988-03-03 Hauni Werke Koerber & Co Kg Verfahren zum schleifen gekruemmter flaechen an werkstuecken

Also Published As

Publication number Publication date
DE3403720A1 (de) 1985-08-08
EP0151444A2 (de) 1985-08-14
EP0151444A3 (en) 1986-05-21
ATE37815T1 (de) 1988-10-15
DE3403720C2 (enrdf_load_stackoverflow) 1987-07-16

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