EP3727752A1 - Einrichtung zum bestücken eines schleifwerkzeugs - Google Patents
Einrichtung zum bestücken eines schleifwerkzeugsInfo
- Publication number
- EP3727752A1 EP3727752A1 EP18827062.3A EP18827062A EP3727752A1 EP 3727752 A1 EP3727752 A1 EP 3727752A1 EP 18827062 A EP18827062 A EP 18827062A EP 3727752 A1 EP3727752 A1 EP 3727752A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- dispenser
- plunger
- sanding
- abrasive
- sheets
- 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.)
- Pending
Links
- 238000003780 insertion Methods 0.000 claims description 5
- 230000037431 insertion Effects 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims 1
- 101100478173 Drosophila melanogaster spen gene Proteins 0.000 description 2
- 101100513476 Mus musculus Spen gene Proteins 0.000 description 2
- 239000006061 abrasive grain Substances 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D9/00—Wheels or drums supporting in exchangeable arrangement a layer of flexible abrasive material, e.g. sandpaper
- B24D9/08—Circular back-plates for carrying flexible material
- B24D9/085—Devices for mounting sheets on a backing plate
-
- 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
- B24B27/00—Other grinding machines or devices
- B24B27/0038—Other grinding machines or devices with the grinding tool mounted at the end of a set of bars
Definitions
- the invention relates to a device for loading a grinding tool according to the preamble of claim 1.
- abrasive tools For abrading surfaces, abrasive tools, each having a sanding pad and an abrasive sheet attached thereto, are moved in a bital, rotary or vibratory manner.
- the attachment of the respective sanding sheet which is otherwise flexible out forms, is usually carried out by means of a Velcro connection, including the grinding plate on the one hand and the abrasive sheet on the other hand correspond de Velcro layers.
- the opposite side of the abrasive sheet is coated with an abrasive grain layer for processing the surface of a workpiece.
- abrasive sheets may have a different contour, predominantly they are circular with different circumferential contours, be it as a circle, wavy or other comparable shape.
- a change of the abrasive sheet for example, if this is no longer useful after use, but designed extremely time consuming because sanding sheets manually removed from a package and placed on the sanding pad must be introduced, with a custom-fit edition is mandatory.
- the grinding wheel In order to be able to deduct these manually better from the grinding plate at a change of the grinding wheel, the grinding wheel is larger in size than the grinding disc, so that an edge overhang is formed.
- the manual change of the sanding sheet is also particularly disadvantageous because it requires a precise positioning of the sanding sheet on the sanding pad. A cost-optimized operation of the grinding blade change is therefore clearly contrary.
- the invention has for its object to provide a device of the gattungsgemä Shen type, with a faster and smoother change of an abrasive sheet is possible.
- the placement of a grinding tool with an abrasive sheet is now practically automatic, ie, that the grinding tool is only in the range of a removal opening of the Spen to bring, which can be done manually with a hand-held grinding tool, or by a robot if that Grinding itself takes place by means of the robot whose grinding movements are computer-controlled.
- a decrease in a used abrasive sheet can also be done automatically, including a puller may be provided with the ro boter can be brought into correspondence.
- the device has a table which may be formed as a sliding or rotary table, each equipped with a plurality, preferably, at the same distance from each other arranged dispensers.
- each abrasive sheet has a connecting and opposite a grinding side.
- the connection side in particular as part of a Velcro connection with the sanding pad of the grinding tool, is at the top, facing the removal opening, so that the stacked abrasive sheets each face with their connection side of the removal opening and the grinding side is on the connecting side of the underlying abrasive sheet.
- the plunger means by which the abrasive sheets are nachgeschoben after removal by the grinding tool until the uppermost abrasive sheet passes into ei ne removal position, has a hydraulic, pneumatic or elekt romotorisch axially movable plunger on the opposite side of the removal opening of the donor to a slide which is stored in the dispenser and on which the stacked abrasive sheets rest.
- Said plurality of dispensers which are positioned on the table, Kings record nen sanding sheets with different grain sizes, being moved to each respective placement of the grinding tool, the table accordingly.
- a plunger device is required to bring different abrasive sheets used.
- a magazine may preferably be provided underneath the table, which is designed such that a targeted removal is possible when a new dispenser is needed.
- each separate dispenser a separate plunger device is assigned.
- the plunger device On the side facing away from the plunger, the plunger device has a mouth piece with a center opening which is smaller than the corresponding dimension of the abrasive sheet, but larger than the corresponding dimension of the grinding lers, so that it can be inserted through the center opening in the dispenser.
- the dispenser also has opposite a center opening which is penetrated by the plunger.
- the dispenser which is in the form of a tubular cartridge, is closed with a lid and a bottom, both with the center Opening provided.
- the lid is removed and pushed onto the floor.
- the now exposed removal opening of the dispenser is closed by the tenöff having having mouthpiece, which is held by clamping the mouthpiece in correspondence with the table of the dispenser.
- the mouthpiece in the region of its central opening circumferentially an insertion obliquely and that on the donor side facing.
- the plunger exerts a counter force, is ensured by the same time that is never depressed with the sanding pad, the stack of sanding sheets.
- the plunger thus forms an abutment.
- the dispenser is preferably provided with an identification, such as an encoding in the form of a bar code or QR code, so that not only is it detected with a slice arranged in the region of the optical system when a dispenser is emptied, but also what type of grinding sheets, ie, in particular with respect to the grain, are consumed, so that the table can be refilled with a corresponding dispenser.
- an identification such as an encoding in the form of a bar code or QR code
- logistic tasks or orders can be carried out via the computer control.
- the consumption of abrasive sheets per work piece, working time or time span can be determined, from which data for an optimization of the grinding work can be derived.
- the filling of the table with dispensers in particular a replacement filling, can be done automatically with suitable devices. It is conceivable, however also make the assembly manually, the requirement of loading the operator is informed by an optical, acoustic or electrical signal and / or by an electronic message from the computer. Incidentally, the operator has sufficient time to load a plurality of devices.
- an enclosure of the device is provided, with an access option for the grinding tool-carrying robot arm is provided.
- this access area is spatially separated from the work area, whereby here too the device is housed, except for the part of the table which is equipped with dispensers.
- the said separation of the setting zone from the working zone can be effected by a protective fence which is provided with doors for access to the working area.
- a protective fence which is provided with doors for access to the working area.
- the robots and other equipment required for grinding operations are preferably switched off in their function or travel to a basic position.
- the required units are networked or individually controlled by a higher-level system controller.
- Fig. 1 shows a device according to the invention in a perspective
- Fig. 2 shows the device in a perspective bottom view
- Fig. 3 is a sectional side view of the device Fig. 4 shows a detail of the device in an enlarged ge cut side view
- Fig. 5 integrated in an operating device in a
- Fig. 6 shows a further detail in a sectional side view.
- a device according to the invention is shown, with a designed as a rotary table table 1, the receptacles 2, in which each case a dispenser 3, as shown in Fig. 6 as a detail in a sectional side view is, are arranged removably.
- a dispenser 3 in which a dispenser 3, as shown in Fig. 6 as a detail in a sectional side view is, are arranged removably.
- a plurality of stacked abrasive sheets 1 1 are deposited, which can be removed via a removal opening of the dispenser 3 by means of a grinding tool.
- the device is held on a stationary base plate 7, to which a plunger device 5 is fixed, in which a plunger 9 is held axially movable, to which a compressed air line 6 is connected for the supply of compressed air.
- the dispenser 3 are at the same distance from each other on the table 1 positio ned and intermittently fed to the plunger device 5 until the plunger 9 is aligned axially with the respective dispenser 3.
- the drive of the table 1 also takes place pneumatically in the example, with a compressed air line 6 is also provided for this purpose, which is in operative connection with a corresponding drive unit.
- a rotary table and a sliding table with receptacles 2 may be provided, which also moves the dispenser 3 cyclically to the plunger device 5.
- the dispenser 3 which consists of a cylinder-shaped cartridge, closed at one end by a cover 13 and at the other end by a bottom 15.
- the Spen of 3 is shown as ready to use, by the lid 13 Tonom men and slipped over the bottom 15.
- the lid 13 has a circumferential collar 14 and an adjoining neck 1 6, wherein the collar 14, whose clear diameter corresponds to the outer diameter of the bottom 15, to the bottom 15, which is designed as a cap, is slipped, while the nozzle 16 of Fixie tion of the dispenser 3 in the receptacle 2 of the table 1 is used.
- a slider 12 is arranged, on which the stack of
- Sanding sheets 1 1 rests.
- Both the lid 13 and the bottom 15 have a central opening 17, 18, which will pass from a plunger 9 of the plunger device 5 in function.
- the plunger device 5 is shown as a partial section of Fig. 3 in an enlarged view. It can be seen that the recording
- the plunger device 5 has a mouthpiece 10, into which the end of the dispenser facing away from the bottom 15
- the mouthpiece 10 has an insertion bevel 21.
- the mouthpiece 10 is provided with an annular disc 20, whose clear diameter is smaller than the clear diameter of the cartridge 8 and the abrasive sheets 1 1, but larger than the grinding plate of a grinding tool, which is shown in FIG. 5 as a robot 22.
- the sanding sheets 1 1 are arranged rectified so that always facing a for example velcro layer to be introduced sanding plate, currency end opposite the abrasive layer with a grain on the Velcro layer of the underlying sanding sheet 1 1 rests.
- the sanding sheets 1 1 have a perforation, in particular for the removal of sanding dust.
- the inner surface of the dispenser 3 is provided with a peripheral contour corresponding to the order fangskontur appropriately trained abrasive sheets 1 1.
- the position of the holes in the sanding sheets 1 1 is defined by the Vorpositio ning the sanding sheets 1 1 by the circumferential contour, so that a placement of the sanding sheet 1 1 is significantly simplified on the sanding pad of a grinding tool 24 at the same Aufsetzwinkelorienttechnik the sanding pad.
- the sanding sheets 1 1 are flexible, they can be pulled out of the dispenser 3 after connection with the sanding pad.
- the plunger 9 passes through a through hole 19 of the receptacle 2 as well as the center openings 17, 18th
- abrasive tool in the form of a robot 22 is shown, the robot arm at his free end has a grinding tool 24 with a grinding plate, not shown. With this robot 22 programmed grinding work on a workpiece surface are performed. To change a worn abrasive sheet 1 1, the sanding pad is brought into contact with the upper abrasive sheet 11 in the dispenser third
- the working area of the robot 22 is separated from that of the person 25 by a partition wall 26, which also protects the device according to the invention positioned on the base plate 7, at least in a partial area.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102017130804.0A DE102017130804A1 (de) | 2017-12-20 | 2017-12-20 | Einrichtung zum Bestücken eines Schleifwerkzeugs |
PCT/EP2018/085935 WO2019121977A1 (de) | 2017-12-20 | 2018-12-19 | Einrichtung zum bestücken eines schleifwerkzeugs |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3727752A1 true EP3727752A1 (de) | 2020-10-28 |
Family
ID=64901547
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18827062.3A Pending EP3727752A1 (de) | 2017-12-20 | 2018-12-19 | Einrichtung zum bestücken eines schleifwerkzeugs |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3727752A1 (de) |
DE (1) | DE102017130804A1 (de) |
WO (1) | WO2019121977A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113070712A (zh) * | 2021-04-15 | 2021-07-06 | 刘月辉 | 一种中心点位盘式智能数控刀具及该刀具的更换方法 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5277688A (en) * | 1992-08-03 | 1994-01-11 | Robotics And Automation Corporation | Automated robotic quick change force controlled arbor device |
US5443358A (en) * | 1993-04-30 | 1995-08-22 | Burton Industries, Inc. | Indexing part loader |
DE102012006502A1 (de) * | 2012-03-29 | 2013-10-02 | Dula-Werke Dustmann & Co. Gmbh | Verfahren zum mehrstufigen Schleifen von Werkstücken, sowie Vakuumtisch, Vorratsbehälter, Abstreifeinrichtung und Anlage zur Durchführung des Verfahrens |
CN105690243A (zh) * | 2014-11-28 | 2016-06-22 | 富泰华工业(深圳)有限公司 | 自动抛光装置 |
-
2017
- 2017-12-20 DE DE102017130804.0A patent/DE102017130804A1/de active Pending
-
2018
- 2018-12-19 EP EP18827062.3A patent/EP3727752A1/de active Pending
- 2018-12-19 WO PCT/EP2018/085935 patent/WO2019121977A1/de unknown
Also Published As
Publication number | Publication date |
---|---|
DE102017130804A1 (de) | 2019-06-27 |
WO2019121977A1 (de) | 2019-06-27 |
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