SE468080B - Procedure for treating surfaces of workpieces using abrasive grains which are resiliently applied - Google Patents
Procedure for treating surfaces of workpieces using abrasive grains which are resiliently appliedInfo
- Publication number
- SE468080B SE468080B SE9100187A SE9100187A SE468080B SE 468080 B SE468080 B SE 468080B SE 9100187 A SE9100187 A SE 9100187A SE 9100187 A SE9100187 A SE 9100187A SE 468080 B SE468080 B SE 468080B
- Authority
- SE
- Sweden
- Prior art keywords
- abrasive grains
- workpieces
- procedure
- boards
- sheets
- Prior art date
Links
- 239000006061 abrasive grain Substances 0.000 title claims abstract description 5
- 238000000034 method Methods 0.000 title claims 2
- 239000000126 substance Substances 0.000 claims description 3
- 229920001342 Bakelite® Polymers 0.000 claims 1
- 229920002522 Wood fibre Polymers 0.000 claims 1
- 239000004637 bakelite Substances 0.000 claims 1
- 239000004033 plastic Substances 0.000 claims 1
- 229920003023 plastic Polymers 0.000 claims 1
- 239000002023 wood Substances 0.000 claims 1
- 239000002025 wood fiber Substances 0.000 claims 1
- 239000000835 fiber Substances 0.000 abstract 1
- 239000002245 particle Substances 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
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
- B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
- B24B7/20—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground
- B24B7/28—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground for grinding wood
-
- 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
- B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
- B24B7/20—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground
- B24B7/30—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground for grinding plastics
-
- 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
- B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
- B24B9/02—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground
- B24B9/18—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of wood
-
- 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
- B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
- B24B9/02—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground
- B24B9/20—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of plastics
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Polishing Bodies And Polishing Tools (AREA)
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
Abstract
Description
l0 15 20 25 30 468 080 Vidare bör det roterande underlaget för slipkornen bringas till anliggning mot yta som skall bearbetas med skärkraft liggande mellan 0,59 och l,O4 (N/mm). 10 15 20 25 30 468 080 Furthermore, the rotating base for the abrasive grains should be brought into contact with the surface to be machined with a cutting force of between 0.59 and 1.04 (N / mm).
För att bearbetningen skall bli så jämn som möjligt vid slipning upprättas ett visst förhållande mellan rotations- tal och tryck. Detta kan ske med hjälp av lämplig servo- arrangemang.In order for the machining to be as even as possible during grinding, a certain ratio is established between rotational speed and pressure. This can be done with the help of a suitable servo arrangement.
Medelst föreliggande uppfinning nedbringas antalet slip- ningar och antalet ytbehandling med lack eller färg till ett absolut minimum.By means of the present invention, the number of sandings and the number of surface treatments with varnish or paint are reduced to an absolute minimum.
En stor fördel vinnes med föreliggande uppfinning där- igenom att stoffmängden reduceras pá ett påtagligt sätt.A great advantage is gained with the present invention in that the amount of substance is reduced in a marked manner.
Uppfinningen finner särskild användning vid bearbetning av kanter till skivor av material som nämnts i det före- gående.The invention finds particular use in the machining of edges into sheets of material mentioned above.
Ytterligare kännetecken gällande för föreliggande upp- finning framgår av efterföljande patentkrav. Ett utfö- ringsexempel av uppfinningen visas pá bifogad ritning där Fig l visar en drivanordning för en slipskiva sedd från sidan och där arbetsstyckets (operatets) placering framgår och där Fig 2 visar samma anordning sedd uppifrån.Additional features applicable to the present invention appear from the appended claims. An embodiment of the invention is shown in the accompanying drawing where Fig. 1 shows a drive device for a grinding wheel seen from the side and where the location of the workpiece (operation) is shown and where Fig. 2 shows the same device seen from above.
I figurerna finns ett stativ l som är rörligt till och från ett arbetsstycke (operat) 2 och då till och från dess kantyta. På stativet är anordnat en elektrisk motor 7 som med hjälp av en transmission 9 driver en slipskiva 8. Slipskivan 8 är längs sin omkretskant försedd med slipkorn som är så applicerade att kornen är fjädrande till och från i radiell riktning. Slipskivan 8 är lagrad 'ax l0 15 20 25 30 3 468 080 i ett hus som sitter vid stativet l. En ansättningsmotor 5 är anordnad som via ett transmissionshus 6 påverkar en skruvaxel 3. Skruvaxeln 3 samverkar med en mutter 4 fäst vid stativet.In the figures there is a stand 1 which is movable to and from a workpiece (operated) 2 and then to and from its edge surface. An electric motor 7 is arranged on the frame, which by means of a transmission 9 drives a grinding wheel 8. The grinding wheel 8 is provided along its circumferential edge with grinding grains which are applied so that the grains are resilient to and from in the radial direction. The grinding wheel 8 is mounted 'axis 10 15 20 25 30 3 468 080 in a housing which is located at the frame 1. A mounting motor 5 is arranged which via a transmission housing 6 acts on a screw shaft 3. The screw shaft 3 cooperates with a nut 4 attached to the frame.
Den beskrivna anordningen fungerar på följande sätt.The described device works in the following way.
Stativet l med slipskiva 8 och motor 7 ansättes mot kan- ten till det arbetsstycke (operat) 2 som skall bearbetas.The stand 1 with grinding wheel 8 and motor 7 is attached to the edge of the workpiece (operat) 2 to be machined.
Anliggningstrycket regleras med hjälp av motorn 5 som med hjälp av skruven 3 och muttern 4 åstadkommer önskad normalkraft. Motorn 7 gives sedan ett lämpligt varv- tal så att förutbestämd skärkraft uppnås i förening med avsedd skärhastighet. Rotationshastigheten hos motorn 7, dvs dess varvtal, påverkas fortlöpande liksom normal- kraften. Den senare genom anordningen bestående av maskin- elementen 3,4,5 och 6.The contact pressure is regulated by means of the motor 5 which, with the aid of the screw 3 and the nut 4, produces the desired normal force. The motor 7 is then given a suitable speed so that a predetermined cutting force is achieved in conjunction with the intended cutting speed. The rotational speed of the motor 7, ie its speed, is continuously affected as well as the normal force. The latter through the device consisting of machine elements 3,4,5 and 6.
På ritningarna àskádliggöres också en linjärslid 10 som möjliggör rätlinjig förflyttning av stativet, förslagsvis rätvinkligt mot arbetsstycket 2.The drawings also illustrate a linear slide 10 which enables rectilinear movement of the stand, preferably at right angles to the workpiece 2.
Skärhastigheten hos slipskivan 8 avpassas att ligga mellan 27,5 och 32,5 (m/sek). Detta åstadkommes automatiskt genom att en med linjärsliden 10 förbunden kuggstång påverkar ett i stativet lagrat kugghjul. Den på detta sätt åstadkomna roterande rörelsen styr en potentiometer som påverkar en frekvensomvandlare, vilken i sin tur reglerar driunotorns 7 varvtal.The cutting speed of the grinding wheel 8 is adapted to be between 27.5 and 32.5 (m / sec). This is achieved automatically by a gear connected to the linear slide 10 actuating a gear wheel mounted in the frame. The rotational movement produced in this way controls a potentiometer which acts on a frequency converter, which in turn regulates the speed of the driunotor 7.
Skärtrycket hos slipskivan 8 regleras också automatiskt, vilket tillgár på så sätt att driunotorns 7 tomgångsström avläses, varefter slipskivan belastas till dess att avsedd strömstyrka uppnås. Drivmotorns belastningsström avläses.The cutting pressure of the grinding wheel 8 is also regulated automatically, which is done in such a way that the idle current of the drive motor 7 is read, after which the grinding wheel is loaded until the intended current is reached. The load current of the drive motor is read.
Skillnaden mellan strömtillförseln vid tomgång och vid belastning utnyttjas. När ärvärdet, som denna strömskill- nad utgör, förändras ombesörjer en givare att motorn 5 träder i funktion för att reglera skärtrycket som är ett börvärde. 10 468 080 4 Nämnda strömskillnad är inte alltid densamma beröende på variationer dels hos den produkt 2 som skall bear- betas, dels på slipskivans struktur. Man får således bestämma skärtrycket för varje produktparti eller vid .q byte av slipskiva.The difference between the power supply at idle and at load is used. When the actual value, which this current difference constitutes, changes, a sensor ensures that the motor 5 comes into operation to regulate the cutting pressure, which is a setpoint. 10 468 080 4 Said current difference is not always the same due to variations partly in the product 2 to be machined and partly in the structure of the grinding wheel. You must thus determine the cutting pressure for each product batch or when changing the grinding wheel.
Anläggningen enligt figurerna i ritningen är försedd med ett för ändamålet utvecklat elektroniskt styrsystem som uppfyller ställda krav på att reglera skärhastighet och skärtryck, men som även övervakar andra funktioner.The system according to the figures in the drawing is equipped with an electronic control system developed for the purpose, which meets the requirements for regulating cutting speed and cutting pressure, but which also monitors other functions.
T ex stoppas arbetsstyckets (operatets) frammatning, när slipskivan 8 blivit förbrukad. Dessförinnan signa- lerar styrsystemet om ett förestående avbrott. Hastig- heten för arbetsstyckets (operatets) 2 frammatning kan vara omkring 10 m/min.For example, the feed of the workpiece (operative) is stopped when the grinding wheel 8 has been consumed. Before that, the control system signals an impending interruption. The speed of the workpiece (operation) 2 feed can be about 10 m / min.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9100187A SE468080B (en) | 1991-01-22 | 1991-01-22 | Procedure for treating surfaces of workpieces using abrasive grains which are resiliently applied |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9100187A SE468080B (en) | 1991-01-22 | 1991-01-22 | Procedure for treating surfaces of workpieces using abrasive grains which are resiliently applied |
Publications (3)
Publication Number | Publication Date |
---|---|
SE9100187D0 SE9100187D0 (en) | 1991-01-22 |
SE9100187L SE9100187L (en) | 1992-07-23 |
SE468080B true SE468080B (en) | 1992-11-02 |
Family
ID=20381679
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE9100187A SE468080B (en) | 1991-01-22 | 1991-01-22 | Procedure for treating surfaces of workpieces using abrasive grains which are resiliently applied |
Country Status (1)
Country | Link |
---|---|
SE (1) | SE468080B (en) |
-
1991
- 1991-01-22 SE SE9100187A patent/SE468080B/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
SE9100187L (en) | 1992-07-23 |
SE9100187D0 (en) | 1991-01-22 |
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