EP2983864A1 - Verfahren und vorrichtung zur oberflächenbearbeitung von werkstücken - Google Patents
Verfahren und vorrichtung zur oberflächenbearbeitung von werkstückenInfo
- Publication number
- EP2983864A1 EP2983864A1 EP14719237.1A EP14719237A EP2983864A1 EP 2983864 A1 EP2983864 A1 EP 2983864A1 EP 14719237 A EP14719237 A EP 14719237A EP 2983864 A1 EP2983864 A1 EP 2983864A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- workpiece
- container
- rotational speed
- rotational
- grinding
- 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
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
- B24B31/00—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor
- B24B31/003—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor whereby the workpieces are mounted on a holder and are immersed in the abrasive material
-
- 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
- B24B31/00—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor
-
- 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
- B24B31/00—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor
- B24B31/006—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor for grinding the interior surfaces of hollow workpieces
-
- 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
- B24B31/00—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor
- B24B31/02—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor involving rotary barrels
-
- 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
- B24B31/00—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor
- B24B31/02—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor involving rotary barrels
- B24B31/027—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor involving rotary barrels with additional oscillating movement
Definitions
- the invention relates to a method for the surface treatment of workpieces by the workpiece is moved relative to a bed of a grinding and / or polishing granules, wherein the workpiece is rotated with respect to the bed of the grinding and / or polishing granules about at least one axis wherein the workpiece is accelerated to different rotational speeds with respect to the bed of abrasive and / or polishing granules.
- the invention further relates to a device suitable for carrying out such a method for the surface treatment of workpieces by moving the workpiece relative to a bed of a
- Poliergranulates wherein the workpiece holder and / or the container is associated with at least one rotary drive and the device further comprises a programmatically set up control device which is able to control at least the rotational drive of the workpiece holder and / or the rotational drive of the container.
- Such devices for the surface processing of workpieces using a granular grinding and / or polishing medium are known for example in the form of so-called drag and dip finishing machines. Their mode of action is based on dipping the workpiece to be machined in a bed located in a container of the grinding and / or polishing granules and the Werk-
- CONFIRMATION COPY piece in particular rotationally and optionally also translationally to move relative to the granules, whereby the surface of the workpiece is ground and / or polished depending on the type of granules.
- Towing and immersion finishing machines represent a special form of sliding grinding machines, wherein the workpieces to be processed, for example, can be clamped individually on one or more workpiece holders rotatable about their axis by means of a rotary drive.
- known drag finishing machines In order to move the workpieces translationally relative to the grinding and / or polishing granules, known drag finishing machines often comprise a generally rotating part substantially in the form of a plate, for example driven by a motor via a suitable gear, to which the work holder is attached directly or, for example via lifting devices, are indirectly determined. This happens in particular eccentrically with respect to the axis of rotation of the rotating part of the drag finishing machine. If this part - the so-called plate - of the towing machine is rotated, the workpiece holders defined here describe a trajectory.
- the workpieces carried by the workpiece holders are immersed in the working container, which is filled with the bed of the particulate abrasive or polishing granules, often with the addition of liquid processing media, such as water, surfactants, etc. Due to the relative movement of
- DE 10 2011 103 606 A1 and DE 10 2009 021 824 A1 further devices for surface treatment of large format workpieces, in particular in the form of turbines, which comprise a rotationally driven workpiece holder, which dips into a stationary, the granule receiving container.
- An associated with the workpiece holder movement unit provides for a rotating or alternating movement of the workpiece about its axis or for different movements of the workpiece in the abrasive granules (rotating and oscillating) with varied rotational speed and immersion depth.
- the container receiving the processing medium can also be moved relative to the workpieces, which in turn are rotated about their own axis, for example about its own axis and / or along a trajectory , eg in the form of a circular path. If only the container is moved and the workpieces themselves do not perform a translatory movement, then this is also referred to as "dip grinding” or “dip polishing", which thus represents a special form of drag finishing.
- Modern for the surface treatment of the workpieces commonly employed apparatus such as the dipping and / or drag finishing machine of the aforementioned type include for effecting an automated operation in the Re ⁇ gel a program-equipped control means which at least the rotary drive of the workpiece holder and optionally also a translational drive the same and / or a (rotary) drive of the container according to various, can be entered into an input device Control speeds, movement speeds and processing times.
- DE 10 2011 015 750 A1 describes a further method and a device for the surface treatment of workpieces, which are intended in particular for the gentle machining of very sensitive workpieces, in particular in the form of optical lenses, which have to meet very tight tolerances.
- the workpiece holders in this case are carried by a programmed controllable manipulator, such as an industrial robot, to pivot a workpiece clamped on the workpiece holder about several different axes during machining, thereby reducing the angle of incidence of the grinding and / or polishing tool moved in the container. Change granules with respect to discrete surface areas of the workpiece and thus to be able to provide the desired grinding and / or polishing effect for the respective surface area of the workpiece.
- the manipulator is able, as required, to continuously rotate the workpieces clamped on the workpiece holder at constant or adjustable different rotational speeds and / or rotational directions about the axis of the workpiece holder and / or to translate them in the bed from the grinding and / or polishing granules or To immerse workpiece only in the same.
- the container may in turn comprise a controlled rotary drive to enable it to rotate at the respective desired rotational speed and to change the flow velocity of the granulate relative to the workpiece.
- the grinding and / or polishing granules used in generic grinding or polishing processes may in principle, depending on the workpieces to be treated, undergo of the most varied nature and eg of natural origin (eg of organic material, such as walnut or coconut shells, wood, cherry stone etc.), of mineral origin (eg of silicates, oxides etc.) and / or synthetic origin (eg of plastics) be.
- natural origin eg of organic material, such as walnut or coconut shells, wood, cherry stone etc.
- mineral origin eg of silicates, oxides etc.
- synthetic origin eg of plastics
- the reason for this consists primarily in the fact that the granules are taken in the immediate vicinity of the rotated relative to the granulate workpiece from the latter, so that the relative movement of the granules in relation to the workpiece on the workpiece surface is significantly less than the rotational speed of the workpiece itself (or as the rotational speed of the granule bed rotated together with the container).
- This applies as already stated, to a particular extent when the workpiece is provided with surface structures, such as grooves, undercuts, etc., or If the workpiece has one or more larger cavities or depressions, in which the granules can store during machining and are taken with the rotating workpiece.
- the DE 20 2009 008 070 Ul describes a for Schleppfi- nishmaschinen provided workpiece holder whose displaceable in rotational workpiece support to which the to bear ⁇ beitenden workpieces can be clamped, at an inclination angle of between 5 ° and 35 ° with respect to the chuck of the workpiece holder self- are arranged, wherein the inclination angle, in particular between said angular range and an angle of 0 (vertical arrangement) can be adjustable.
- the storage of granular particles in grooves or undercuts of the Workpiece effectively reduced, since the particles are discharged due to the inclined axis of rotation during operation of such surface structures of the workpiece again.
- there is also the aforementioned problem of forming a velocity gradient wherein the relative velocity of the granules decreases with respect to the rotated workpiece, the closer a granular particle is to the workpiece.
- the invention is therefore the object of a method and apparatus for surface treatment of workpieces of the type mentioned in a simple and cost-effective way to the effect that the problem of entrainment of workpiece granules close to the workpiece and thus caused efficiency losses of the surface treatment can be effectively countered can and in particular a satisfactory surface processing of relatively large cavities or depressions having workpieces in economically acceptable processing time is possible.
- this object is achieved in a method of the type mentioned in that the workpiece and / or a bed of the
- the invention provides for solving this problem in a device for the surface treatment of workpieces of the type mentioned further, that the control device
- the inventive design prevents in a very simple and cost-effective manner the formation of a velocity gradient of the granular particles in the immediate vicinity of the rotated workpiece by the latter is accelerated in very short periodic cycles between different rotational speeds back and forth and / or with continuously different rotational speeds with respect to the granules , Consequently, the workpiece or the granulate bed received in the container is in particular continuously accelerated back and forth between one or more first rotational speeds and one or more second rotational speeds, in each case one expediently within the short periodic intervals or cycles maximum rotational speed is reached, in order to then decelerate again (to accelerate negatively), then to accelerate again (positively), etc.
- Any conversion of known towing and Tauchfinishmaschinen to the embodiment of the invention basically requires only a programmatic intervention in the control device to cause this, the rotational drive of the or the workpiece holder (s) or the container during operation in very short periodic cycles to accelerate back and forth between different rotational speeds and / or with continuously different rotational speeds.
- cycles refer to the successive-identical or possibly also different-durations during the surface treatment, in which the workpiece or the granulate deposit received in the container is between at least one first and at least one is moved once and once at a second rotation speed.
- a rotational speed profile described above is preferably set, in which the first rotational speed is approximately equal to zero, and it is generally sufficient to achieve the effect according to the invention, the workpiece or the granules deposited in the container not to absolute standstill (negative ), but can also the workpiece or the container, for example constantly at a very low (first) rotational speed of, for example, a maximum of about
- the rotational speed of the workpiece and / or the container with the granulate therein can preferably be substantially sinusoidal (ie both periodically between at least two rotational speeds back and forth and under continuous
- the workpiece and / or the container with the granulate therein herein at least temporarily or temporarily between at least a first rotational speed not equal to zero and at least a second rotational speed with respect to the first rotational speed opposite direction of rotation back and forth is accelerated or become.
- Such reversal of the direction of rotation during machining which takes place in continuously periodic cycles, prevents the formation of a velocity gradient of the granulate particles in the vicinity of the workpieces rotated relative to these, in particular also in the case of grooves, depressions or similar surface structures.
- the amounts of rotational speeds in or counterclockwise can in turn be either constant or variable over the processing time and the same or different from each other.
- the maximum rotational speed (s) can basically correspond to the rotational speeds which are usually set and suitable for the respective workpiece, wherein the workpiece and / or the container with the granulate bed located therein in particular at least one (first and / or second) Rotation speed of at least about 200 U / min, in particular of at least about 500 U / min, preferably of at least about 1000 U / min, can be accelerated.
- Particularly preferred maximum rotational speeds are at least about 1500 rpm or, in particular, at least about 2000 rpm.
- Corresponding values apply to the amount of the speed difference between at least a first and at least a second rotational speed, between which the workpiece and / or the container is accelerated to and fro.
- the periodic cycles should be chosen as short as possible in terms of effective and time-efficient surface processing, wherein it may preferably be provided that the workpiece and / or the container having the granulate bed therein at least temporarily in periodic cycles of at most about 4 seconds, more preferably at most about 3 seconds, preferably at most about 2 seconds, for example at most about 1 second or even at most about 0.5 second the at least one first and the at least one second rotational speed are accelerated back and forth.
- a particularly advantageous embodiment of the method according to the invention provides that the workpiece and / or a container receiving the filling from the abrasive and / or polishing granules both
- the workpiece and / or the container with the granulate bed located therein is advantageously accelerated over time, at least temporarily or temporarily with a substantially sinusoidal profile of the rotational speed over time, the period or the cycle of the may be substantially sinusoidal course of the rotational speed, in particular at most about 5 s (but may also last longer, as long as a continuous rotation speed change is ensured).
- the workpiece and / or the container with the granulate bed located therein can at least temporarily with a substantially sinusoidal course of the rotational speed over time with approximately constant amplitude (ie with approximately constant distance between the minima or maxima of the rotational speeds ) or with amplitude that varies over time (ie with different distances between the minima or maxima of the rotational speeds) can be accelerated back and forth.
- the workpiece and / or the container with a substantially sinusoidal course of the rotational speed with variable amplitude over time is accelerated back and forth, such as on the occasion of an above-mentioned initial coarse grinding, which gradually into a Finishing passes, preferably the amplitude of the substantially sinusoidal course of the rotational speed over time, at least temporarily, in particular substantially steadily, decrease or increase, so that the minima or maxima of the rotational speeds converge or diverge.
- the inner walls of the workpiece surrounding such cavities and / or depressions can be shaped a mold, a bottle or any other vessels, etc., in a very effective and time-efficient manner grind and / or polish, wherein the in the depression / in the cavity of several times at different Rotationsge ⁇ speeds accelerated workpiece filled granule bed due to inertia not ( appreciable) of the always differently rotated workpiece is taken.
- a device suitable for this purpose does not necessarily have to have a container for holding (further) grinding and / or polishing granules. Moreover, it may be useful in such a case, when the hollow workpiece is rotated about the central axis of its cavity or its recess in the manner according to the invention, which in particular can be arranged substantially horizontally during the surface processing in order to take advantage of the gravity of the granular bed do.
- the container is expediently - be it substantially constant or be it with a temporally changed rotational speed - rotated about its central axis to avoid imbalances.
- the container is expediently - be it substantially constant or be it with a temporally changed rotational speed - rotated about its central axis to avoid imbalances.
- control device of a device according to the invention for the surface treatment of workpieces is therefore expediently set up for setting at least one, in particular several or preferably all above-described rotational speed profiles of the rotary drive of the workpiece holder and / or the container during operation.
- the invention of course also offers the possibility that the workpiece further - ie in addition to the rotational acceleration of the workpiece itself or in particular of the container - translationally, in particular along a trajectory, relative to the bed of the grinding and / or polishing granules is moved.
- control device is also set up to control the rotational drive of the container to a rotational speed which is essentially constant in time but preferably variable or else variable in time.
- another e.g. be provided translationally reciprocating reciprocating motion or vibration drive of the container, which is in operative connection with the control device.
- a translatori ⁇ specific movement of the workpiece in the bed of the grinding and / or polishing granules can also be made relative thereto characterized by the workpiece translate along a track curve, in particular in the form of a circular arc or any other trajectory, in the bed of the grinding and / or polishing granules is moved relative thereto.
- the workpiece can be moved in translation at a substantially constant speed relative to the charge from the grinding and / or polishing granules or, of course, at a variable speed become.
- the work holder and / or the container also to be assigned a translatory motion drive and for the control device to be able to control the translational motion drive of the workpiece holder, in particular along a path curve, such as a circular path or any other desired path other trajectory.
- Such translational motion drives of the workpiece holder are known inter alia from the cited prior art and may for example comprise a rotating part of a drag finishing machine, the so-called plate, on which one or more workpiece holders are arranged eccentrically; or, for example, they may also include manipulators, such as robots and the like, carrying the workpiece holder (s).
- an advantageous embodiment of the method according to the invention also provides that at least the rotational movements of the workpiece and / or of the container with the granulate bed located therein and optionally the further (n) - translational and / or rotary (s) - Movement (s) of the workpiece and / or the container controlled, in particular programmed to be performed.
- Servo motors which can be preferably provided for rotationally driving the workpiece holder and / or the container of a device according to the invention, have finally proved particularly suitable for the high accelerations according to the invention within short cycles.
- the respective rotary drive also be associated with a lower or transmission gear.
- Fig. 1 is a schematic perspective view of a
- FIG. 2 shows a schematic perspective exploded view of a further embodiment of a device according to the invention for the surface treatment of workpieces
- FIG. 3 is a diagram of an embodiment of a during operation of the devices of Figure 1 and / or 2 controllable adjustable Rotations effets- profile of a workpiece holder with a workpiece clamped thereto over time. and one of the Fig. 3 corresponding diagram of an embodiment of another advantageous rotational speed profile.
- a device for the surface treatment of workpieces in the form of a drag or Tauchfinishmaschine comprises a frame 1, at its upper end a about a vertical axis 2 in the direction of arrow Pi back and forth rotating part 3 in the form of a rotatable support plate is mounted in the manner of a plate.
- the rotatable part 3 is for this purpose with a flat if fixed to the frame 1, controllable motor drive 4 equipped.
- lifting devices 5 On the underside of the rotatable member 3 eccentric to the axis of rotation 2 and in the circumferential direction of the same distance voneinan- consecutively and at the same radial distance from the axis of rotation 2 of the rotatable member 3 arranged lifting devices 5 are fixed, provided in the present embodiment, three such lifting devices 5 are, but of course only two or more than three lifting devices 5 may be provided.
- the lifting devices 5 each carry a workpiece holder 6, which may be provided with one or more clamping devices 7, for example, in order to releasably clamp workpieces (not shown) to be machined on the occasion of their surface treatment.
- the drive 4 of the rotatable part 3 can serve in this way as a translational motion drive of the eccentrically arranged on the rotatable part 3 workpiece holder 6, which are moved in the case of rotation of the part 3 along a circular path.
- Each lifting device 5 comprises in the present embodiment, for example, along a vertical guide 8 back and forth movable support unit 9, which for example by means of a chain or belt drive can be moved up and down. Furthermore, in the present exemplary embodiment, the lifting devices 5 in the present exemplary embodiment are movable independently of the other lifting devices 5 upwards and downwards independently of one another by means of a motor (not visible in the drawings) also attached to the underside of the rotatable part 3.
- each one of the workpiece holder 6 is fixed, wherein the workpiece holder 6 by means of a respective controllable rotary drive 10 in Rota- tion can be offset in order to set a, for example by means of the clamping device 7, on the workpiece holder 6 clamped workpiece on the occasion of its surface processing in rotation (arrow P 4 ).
- a container 11 for receiving a grinding and / or polishing granules (not shown) is arranged, which is rotatable about a vertical axis by means of a rotary movement drive, wherein the axis of rotation of the container 11 here, for example with the The axis of rotation 2 of the rotatable part 3 is aligned, so that the relative movement between the workpieces fixed to the workpiece holders 6 and the granulate bed located in the container 11 is the same.
- Each lifting means 5 is able to fastened to its supporting unit 9 work holder 6 along the arrow P2 between a obe ⁇ reindeer, arranged above the container 11 position in which ters 6 machined workpieces can be taken from the chuck 7 of the respective Maschinen Swisshal- and this with raw Workpieces can be fitted, and a lower position in which the tensioned on the clamping device 7 of the workpiece holder 6 workpieces 17 dive into the container 11 in order to edit these, verti cal back and forth to relocate.
- the rotatable part 3 is movable about its axis 3 in the direction of the arrow Pi in such a way that it can successively transfer each workpiece holder 6 with a respective workpiece fastened thereto into a loading / unloading position, such a loading / unloading position being Removal position, for example, the right in Fig. 1 workpiece holder 6 occupies, in which he - after he from the Lifting device 5 has been moved to its upper position - is freely accessible from the side.
- the workpiece holders 6 with their clamping devices 7 can be inclined at a finite angle with respect to the vertical, this angle in the present case being e.g. about 30 °.
- the angle of inclination of the workpiece holders 6 can be individually adjustable, e.g. the carrying the respective workpiece holder 6 supporting unit 9 of each lifting device 5 to a - here approximately horizontal - axis is pivotable.
- the workpiece holders 6 have a tilt direction component arranged counter to the direction of rotation of the container 11 (arrow P3), i. the workpieces fixed to the workpiece holders 6 submerge at a slope counter to the direction of rotation of the container 11 into the granulate bed located therein, so that a surface treatment of the lower end side thereof can also take place.
- Rollers 12 movable carriage 13 may be arranged to provide a simple and quick replacement of the granules by a container 11 is replaced with another container.
- the carriage 13 comprises the example arranged on its underside rotation drive (not visible in Fig. 1) of the container 11.
- both the carriage 13 as Also, the frame 1 be equipped with mutually complementary centering devices 16, which are arranged for example on three of four sides of the carriage 13 and the frame 1 and a lateral insertion of the carriage 13 in the frame 1 for a DoubleZentr mich of the carriage 13 with respect to provide the frame 1, so that the axis of rotation of the container 11 coincides with the axis of rotation 2 of the rotatable member 3.
- the device further comprises a (not shown in the drawing) programmatically configured control device, which may be, for example, an electronic data processing unit with a processor and which is capable of controlling the rotary drives 10 of the workpiece holder 6 such that the latter during operation in periodic cycles Z of at most 5 s between at least one first rotational speed Ri and at least one second rotational speed R 2 are accelerated to and fro and / or rotated with continuous different rotational speeds under continuous acceleration, wherein the corresponding desired rotational motion profiles are suitably programmed and also not graphically dargestell ⁇ te) input unit of the control device can be entered.
- a programmatically configured control device which may be, for example, an electronic data processing unit with a processor and which is capable of controlling the rotary drives 10 of the workpiece holder 6 such that the latter during operation in periodic cycles Z of at most 5 s between at least one first rotational speed Ri and at least one second rotational speed R 2 are accelerated to and fro and / or rotated with continuous different rotational speeds under continuous acceleration, where
- control device is furthermore capable of controlling the rotational movement drive of the container 11 in such a way as to apply it to one or more desired, more or less constant rotational speeds and / or directions.
- control device is operatively connected both to the drive 4 of the rotatable part 3 and to the drives of the lifting devices 5, wherein in the input unit of the control device, for example, the desired machining times of the workpieces as well as the loading / unloading position including the residence time of a each workpiece holder 6 can be entered in the insertion / removal position.
- the control device can be set up such that it moves the rotatable part 3 at periodic intervals, transferred to each workpiece holder '6 after the preset machining time in the placement / removal position and there over a sufficient for removal / assembly of workpieces, also preset Period holds. In this way, a semi-continuous workpiece assembly or release is achieved.
- control device furthermore ensures that each lifting device 5 of the respective workpiece holder 6, at the clamping device 7 of which the respective workpiece (s) is to be exchanged, is after, before or during the method the workpiece holder 6 by means of the rotatable part 3 - from the lower working position in the upper loading / unloading position vertically upward verla- Gert, held there at least on the sufficient for removal / placement of workpieces, also preset period, and then - after, before or during the process of the workpiece holder 6 by means of the rotatable member 3 - is again transferred vertically down to the working position.
- FIG. 2 shows a further embodiment of a device for the surface treatment of workpieces, identical or equivalent components being provided with the same reference numerals as in FIG.
- the device according to FIG. 2 in turn comprises a container 11 for receiving a grinding and / or polishing granules
- the container 8 is arranged on a carriage 13 according to FIG. 1 corresponding carriage 13, on which, for example on its underside, again the rotary drive (in Fig. 2 is not completely visible) of the container 11 is arranged and which one equipped with a cam shaft 17 support plate 18 includes, on which the container 11 rotatably and self-centering can be placed.
- the apparatus shown in FIG. 2 further comprises a manipulator in the form of a robot, generally designated by the reference numeral 110, which carries the workpiece holder or holders 6 for releasably securing a workpiece to be machined (not shown).
- the robot 110 is, for example, a multi-axis industrial robot which has a frame 112 on which a carousel 113 is pivotably mounted about a vertical axis. On the carousel 113 sits a console 114 with a horizontal bearing for a rocker 115, at the console 114 facing away from the (upper) end turn a boom 116 is mounted on a horizontal, parallel to the pivot axis of the console 114 arranged axis.
- the expander 116 is equipped at its end with a three-axis robot hand 117, which carries the workpiece holder 6.
- the three-axis robot hand 117 is of three further control motors 121, 122 , 123, which are mounted, for example, on the robot hand 117 facing away from the end of the boom 116.
- the three-axis robot hand 117 with the workpiece holder 6 can thus pivot the latter under any orientation in three-dimensional space in order to align a workpiece detachably fixed to the workpiece holder 6 in the desired position with respect to the granulate bed located in the container 11 Also to move the workpiece holder 6 translationally in any spatial directions.
- the three-axis robot hand 117 can rotate the workpiece holder 6 in particular in the direction of the arrow P 4 about its longitudinal axis, wherein the rotational movement control is in turn arranged to hold the workpiece holder 6 with a workpiece attached thereto during operation in periodic cycles Z of at most 5 s between at least a first rotational speed Ri and at least one second rotational speed R2 to accelerate back and forth and / or to rotate under continuous acceleration with continuously different rotational speeds (see below with reference to the 3 and 4), wherein the corresponding desired rotational motion profiles can be programmed and entered into an input unit (also not shown in the drawing). The same can again apply to the rotation movement control of the container 11.
- FIGS. 3 and 4 advantageous rotational speed profiles of the workpiece holder 6 (and / or of the container 11), as can be carried out by means of the devices according to FIGS. 1 and 2, are reproduced by way of example. 3 and 4, on the y-axis, rotational speed n (for example, in revolutions [U] per minute) is representative of rotational speed
- the rotational speed profile of the workpiece holder 6 or of the container 11 clamped there runs substantially sinusoidally or in the form of an undamped oscillation, whereby the workpiece is constantly less stable in periodic cycles Z.
- (Positive or negative) acceleration between a first rotational speed Ri of about zero and a second rotational speed R 2 which may be, for example, about 2000 U / min, is accelerated back and forth.
- the second rotational speed does not necessarily have to be constant, but may also change over the processing time t, ie the amplitude A of the approximately sinusoidal curve may change with increasing processing time (not shown).
- the first rotation speed Ri does not necessarily have to be equal to zero, but in particular can also have a rotational speed which is appreciably lower than the second rotation speed R 2 , for example between be about 0 and about 100 rpm.
- the duration of the periodic cycles Z may be, for example, between about 1 s and about 10 s.
- the rotational speed profile of the workpiece holder 6 or of the container 11 clamped by way of example in FIG. 4 differs from that of FIG. 3 primarily in that the workpiece is continuously non-zero in periodic cycles Z between a first rotational speed Ri and a second rotational speed R 2 also non-zero, but with opposite direction of rotation, is accelerated back and forth.
- the rotational movement takes place again under continuous (positive or negative) acceleration.
- the amounts of the first R x and / or second rotational speed R 2 may in turn be about 2000 rpm, for example, but may not be any different from each other in terms of their sign.
- both rotational speeds Ri, R 2 do not necessarily have to be constant, but one or both rotational speeds Ri, Ri can also change over the processing time t, ie the "amplitude component" Ai of the first rotational speed Ri up to the zero point (point-by-point standstill of the workpiece in the direction of rotation reversal) and / or the "amplitude component" A2 of the second rotational speed R 2 to the zero point of the approximately sinusoidal curve can change with increasing processing time (not shown).
- the period of the periodic cycles Z may be, for example, between about 0.25 s and about 5 s.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Manipulator (AREA)
Abstract
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL14719237T PL2983864T3 (pl) | 2013-04-09 | 2014-03-26 | Sposób i urządzenie do obróbki powierzchniowej przedmiotów obrabianych |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102013006010.9A DE102013006010A1 (de) | 2013-04-09 | 2013-04-09 | Verfahren und Vorrichtung zur Oberflächenbearbeitung von Werkstücken |
| DE102013016053 | 2013-09-27 | ||
| PCT/EP2014/000808 WO2014166594A1 (de) | 2013-04-09 | 2014-03-26 | Verfahren und vorrichtung zur oberflächenbearbeitung von werkstücken |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2983864A1 true EP2983864A1 (de) | 2016-02-17 |
| EP2983864B1 EP2983864B1 (de) | 2017-04-26 |
Family
ID=50549278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP14719237.1A Active EP2983864B1 (de) | 2013-04-09 | 2014-03-26 | Verfahren und vorrichtung zur oberflächenbearbeitung von werkstücken |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US10357866B2 (de) |
| EP (1) | EP2983864B1 (de) |
| JP (1) | JP6344577B2 (de) |
| KR (1) | KR102218198B1 (de) |
| CN (1) | CN105102186B (de) |
| ES (1) | ES2634901T3 (de) |
| PL (1) | PL2983864T3 (de) |
| WO (1) | WO2014166594A1 (de) |
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| US10189211B2 (en) * | 2015-01-09 | 2019-01-29 | Incodema3D, LLC | Method for processing additively manufactured part by robotically moving medium inside part cavity |
| WO2016209179A1 (en) * | 2015-04-27 | 2016-12-29 | Eroğlu Aysen Eren | Method of barrel centrifugal surface polishing and barrel centrifugal surface polishing apparatus |
| DE102016104148A1 (de) | 2016-03-08 | 2017-09-14 | Andreas Boigner | Vorrichtung und Verfahren zur Oberflächenbehandlung von Bauteilen |
| CN106002587B (zh) * | 2016-05-20 | 2018-02-23 | 五邑大学 | 基于平动圆周转动的工件表面处理设备 |
| CN106392796B (zh) * | 2016-12-03 | 2018-07-24 | 青岛全程源机械有限公司 | 一种智能大型钢板打磨机器人 |
| CN108296885A (zh) * | 2017-01-13 | 2018-07-20 | 昆山纳诺新材料科技有限公司 | 磁流变三维抛光装置及磁流变抛光液 |
| CN106881659B (zh) * | 2017-03-16 | 2023-03-31 | 浙江工业大学 | 一种具有仿形磨粒群的抛光装置 |
| US11712776B2 (en) * | 2018-02-02 | 2023-08-01 | Terry Sullivan | Rotor polishing device |
| JP2020131313A (ja) * | 2019-02-14 | 2020-08-31 | 株式会社小松製作所 | バレル研磨装置 |
| CN110539243A (zh) * | 2019-09-29 | 2019-12-06 | 厦门铭意真空科技有限公司 | 一种新型研磨抛光设备 |
| DE102019008802A1 (de) | 2019-12-18 | 2021-06-24 | OTEC Präzisonsfinish GmbH | Verfahren und Vorrichtung zur Oberflächenbearbeitung von Werkstücken |
| US20210213585A1 (en) * | 2020-01-11 | 2021-07-15 | Robert Lyn Seals | Metal bottle interior processed to stop nickel leaching and taste altering effects |
| CN112129058B (zh) * | 2020-09-28 | 2022-04-19 | 安徽佳洁面业股份有限公司 | 一种面粉加工用小麦烘干装置 |
| TWI749917B (zh) * | 2020-11-30 | 2021-12-11 | 寅翊智造股份有限公司 | 自動化處理機之換桶裝置 |
| TWI749916B (zh) * | 2020-11-30 | 2021-12-11 | 寅翊智造股份有限公司 | 自動化處理機之換桶裝置 |
| TWI749915B (zh) * | 2020-11-30 | 2021-12-11 | 寅翊智造股份有限公司 | 自動化處理機之升降裝置 |
| CN113276011B (zh) * | 2021-06-24 | 2023-04-25 | 杭州临安华滢精密元件有限公司 | 一种精准小件溜光装置 |
| CN114055330B (zh) * | 2021-11-23 | 2022-11-29 | 大连理工大学 | 一种多自由度涡流复杂曲面化学机械抛光装备 |
| CN115213805B (zh) * | 2022-07-20 | 2023-12-15 | 邵东市鸿伟工具有限公司 | 一种活动扳手自动化加工设备及其使用方法 |
| CN115555979B (zh) * | 2022-09-19 | 2024-12-27 | 瑞谷科技(大连)股份有限公司 | 保持架辅助光饰装置 |
| DE102023122257A1 (de) | 2023-08-21 | 2025-02-27 | Otec Präzisionsfinish GmbH | Verfahren zum lösbaren Festlegen mehrerer Werkstücke an einem Werkstückhalter für eine Schlepp- oder Tauchfinishmaschine und hierfür geeigneter Werkstückhalter |
| CN119238310B (zh) * | 2024-11-22 | 2025-05-16 | 天津市良友自行车有限公司 | 一种用于自行车车架的打磨设备 |
| CN120244722B (zh) * | 2025-06-06 | 2025-08-01 | 河北恒工精密装备股份有限公司 | 一种避免工件碰撞的偏心轴磨削控制方法 |
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-
2014
- 2014-03-26 WO PCT/EP2014/000808 patent/WO2014166594A1/de not_active Ceased
- 2014-03-26 KR KR1020157025298A patent/KR102218198B1/ko active Active
- 2014-03-26 EP EP14719237.1A patent/EP2983864B1/de active Active
- 2014-03-26 JP JP2016506802A patent/JP6344577B2/ja active Active
- 2014-03-26 CN CN201480019632.0A patent/CN105102186B/zh active Active
- 2014-03-26 PL PL14719237T patent/PL2983864T3/pl unknown
- 2014-03-26 ES ES14719237.1T patent/ES2634901T3/es active Active
- 2014-03-26 US US14/771,328 patent/US10357866B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| JP2016515476A (ja) | 2016-05-30 |
| CN105102186B (zh) | 2017-11-21 |
| PL2983864T3 (pl) | 2017-10-31 |
| JP6344577B2 (ja) | 2018-06-20 |
| KR102218198B1 (ko) | 2021-02-22 |
| ES2634901T3 (es) | 2017-09-29 |
| WO2014166594A1 (de) | 2014-10-16 |
| KR20150140280A (ko) | 2015-12-15 |
| CN105102186A (zh) | 2015-11-25 |
| US20160016277A1 (en) | 2016-01-21 |
| US10357866B2 (en) | 2019-07-23 |
| EP2983864B1 (de) | 2017-04-26 |
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