EP0011518B1 - Machine d'usinage par abrasion au moyen de patins abrasifs à mouvements alternatifs - Google Patents

Machine d'usinage par abrasion au moyen de patins abrasifs à mouvements alternatifs Download PDF

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Publication number
EP0011518B1
EP0011518B1 EP79400689A EP79400689A EP0011518B1 EP 0011518 B1 EP0011518 B1 EP 0011518B1 EP 79400689 A EP79400689 A EP 79400689A EP 79400689 A EP79400689 A EP 79400689A EP 0011518 B1 EP0011518 B1 EP 0011518B1
Authority
EP
European Patent Office
Prior art keywords
slide blocks
carriage
abrasive
lifting
piece
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
EP79400689A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0011518A1 (fr
Inventor
Roger Lebland
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.)
Individual
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 AT79400689T priority Critical patent/ATE3957T1/de
Publication of EP0011518A1 publication Critical patent/EP0011518A1/fr
Application granted granted Critical
Publication of EP0011518B1 publication Critical patent/EP0011518B1/fr
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
    • B24B35/00—Machines or devices designed for superfinishing surfaces on work, i.e. by means of abrading blocks reciprocating with high frequency

Definitions

  • the present invention relates to machines intended for abrasion machining and in particular for sanding wood.
  • a sanding device of the type comprising a sliding carriage animated by an alternating movement and carrying a vibrating head and at least one abrasive pad in contact with the workpiece and which is animated by an alternating movement.
  • Such a device is, for example, described in French patent FR-A-2,123,714.
  • the device according to this patent comprises a turntable intended to receive a part to be polished.
  • a sliding carriage which can be driven in a reciprocating movement in the plane of the surface to be trapped and which can be lowered and applied thereto by a jack.
  • This carriage carries a vibrating polishing head.
  • this polishing head is applied by the jack to the workpiece and carries out, driven by the carriage, a series of back and forth movements on the surface to be trapped. During these movements, the head remains applied to the workpiece.
  • the object of the invention is to design a device which makes it possible to remedy the drawbacks of the devices of the prior art.
  • the device according to the present invention comprises means for slightly lifting the pads at each end of their travel.
  • the lifting of the pads at the end of the race is obtained by their attachment to two connecting rods articulated by one of their ends to the carriage and by the other to the pad and which are articulated by an intermediate part of connecting rods whose other ends cooperate with an eccentric guide so that said connecting rods form an oscillating parallelogram.
  • the lifting of the skids is obtained by means of rollers integral with the mobile carriage and which move in recesses provided on the frame carrying the carriage and which have a horizontal central part and slightly raised end parts.
  • the mobile assembly carrying the pads is connected to a jack applying the pads to the workpiece with a constant force F '.
  • the carrier assembly of the pads is connected to an electromagnet applying the pads on the workpiece with a constant force F '.
  • said pads are crossed by channels opening onto the abrasion surface and into which is injected a gas, a liquid or a mixture of the two.
  • the device according to the invention comprises various means for slightly lifting the pad at the end of the stroke in order to allow the evacuation of the particles accumulated during each movement.
  • the graph in Plate 1, Figures 1 and 2, explains the movement.
  • Figure 1 shows the oscillation movement, that is to say longitudinal only (represented by the forces F and F1) and the application force F 'always constant for a given job.
  • FIG. 2 we see the composite movement obtained thanks to the different forces involved.
  • the clamping force F applied to the mechanism itself and combined with the oscillating movements F, F1 (FIG. 1) themselves produced by the eccentric lifting means described below.
  • the resulting movement then consists of a first oscillating lifting movement a, a substantially rectilinear oscillating movement b corresponding to the effective abrasion phase and a second oscillating lifting movement c.
  • the lifting cups are used to evacuate particles accumulated during the abrasion operation.
  • the invention provides for the injection of air or any other fluid between the pad and the surface to be machined, this fluid being brought into this space by channels 23 through the support and the pad.
  • the location of the connection duct in the support and in the shoe is designated by the reference 23 in Figures 5, 6, 9 and 10.
  • the first device represented by FIGS. 5, 6, 7 and 8 comprises a box 1 fitted internally with rails 2 on which the rollers 3 of the upper part of the carriage 4 will roll. ( Figures 7-8).
  • This is made integral with the housing by a jack 5 which makes it possible to raise the pads 22 or to apply them with a given pressure F ′ on the material to be machined.
  • the piston of the jack 5 is connected to the housing as shown diagrammatically in 5 ′, while the cylinder of the jack is connected to the upper part of the carriage 4 as shown diagrammatically in 5 ".
  • the lower part of the carriage 4 ( Figures 5-6) includes the vibrating system.
  • the pads are mounted on the carriage 13 by means of the silentblocs 14 and the axis 15.
  • This carriage is guided by the rollers 16 which roll in the recesses 17 of the frame 18.
  • These recesses have a shape intended to reproduce the movement defined by the graph of Figures 1 and 2.
  • the force F ', Figures 1 and 2 is provided as in the previous system by a jack, rails and rollers similar to those described in Figures 5, 6, 7 and 8.
  • the vibrating assembly is formed of silentblocs 19 (partial section CD) and of the crankshaft with eccentrics 20 provided with silentblocs 21.
  • the resulting movement is obtained by a carriage identical to the system described in the first mode (FIGS. 5 to 8) and ensuring the application of the force F ′, FIGS. 1 and 2, or by the weight of the motor and the pressure of the hand if the system is used as a hand machine instead of a machine automatic.
  • the jack is replaced, in FIGS. 5 to 10, by an electromagnet of desired power.
  • the movement in lifting height at the end of the travel is obtained directly by an electromagnet replacing the jack 5, and controlled by a static contactor controlled by the rotation of the eccentric.
  • the tools will be provided with a conduit 23, Figures 5, 6, 9 and 10 connected to the fluid generator. It will emerge between the abrasive and the material to be machined through orifices or grooves dictated by the shape of the profile of the pad in order to ensure the evacuation of the particles removed in the best way.
  • the device which is the object of the improvement can advantageously be applied to the sanding of wood for moldings, cabinet-making, buildings, parquet floors, etc., and in particular in continuous production chains. It can also be used to modify the surface condition of plastics and metals.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
EP79400689A 1978-10-19 1979-09-27 Machine d'usinage par abrasion au moyen de patins abrasifs à mouvements alternatifs Expired EP0011518B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT79400689T ATE3957T1 (de) 1978-10-19 1979-09-27 Mit oszillierenden schleifbloecken versehene schleifmaschine.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7829732A FR2439065A1 (fr) 1978-10-19 1978-10-19 Perfectionnements aux machines d'usinage par abrasion
FR7829732 1978-10-19

Publications (2)

Publication Number Publication Date
EP0011518A1 EP0011518A1 (fr) 1980-05-28
EP0011518B1 true EP0011518B1 (fr) 1983-06-29

Family

ID=9213910

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79400689A Expired EP0011518B1 (fr) 1978-10-19 1979-09-27 Machine d'usinage par abrasion au moyen de patins abrasifs à mouvements alternatifs

Country Status (5)

Country Link
EP (1) EP0011518B1 (enrdf_load_stackoverflow)
AT (1) ATE3957T1 (enrdf_load_stackoverflow)
DE (1) DE2965799D1 (enrdf_load_stackoverflow)
ES (1) ES485146A1 (enrdf_load_stackoverflow)
FR (1) FR2439065A1 (enrdf_load_stackoverflow)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES279553Y (es) * 1984-05-30 1985-11-01 Balenciaga Eizmendi Alberto Disposicion perfeccionada en el cabezal de una maquina ligadora automatica.
DE3510333A1 (de) * 1985-03-22 1986-09-25 Robert Bosch Gmbh, 7000 Stuttgart Schleifer mit ebener schleifflaeche
CN107866742B (zh) * 2017-12-09 2020-08-18 无锡威克莱科技有限公司 一种大型立磨磨盘修复装置
CN111230626B (zh) * 2020-03-13 2021-07-06 深圳市三大金属有限公司 一种防爆的铝镁合金薄板打磨机

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR583310A (fr) * 1924-07-04 1925-01-10 Machine à poncer le bois
FR726829A (fr) * 1931-01-23 1932-06-03 Machine à rectifier et à polir les cylindres d'impression
FR1560670A (enrdf_load_stackoverflow) * 1968-02-23 1969-03-21
FR1561508A (enrdf_load_stackoverflow) * 1968-03-04 1969-03-28
FR1592969A (enrdf_load_stackoverflow) * 1968-11-25 1970-05-19
FR2054582A1 (enrdf_load_stackoverflow) * 1969-06-20 1971-04-23 Weinig Michael Kg
FR2123714A5 (enrdf_load_stackoverflow) * 1971-01-28 1972-09-15 Bologne Forges

Also Published As

Publication number Publication date
FR2439065B1 (enrdf_load_stackoverflow) 1981-05-22
ES485146A1 (es) 1980-05-16
EP0011518A1 (fr) 1980-05-28
ATE3957T1 (de) 1983-07-15
FR2439065A1 (fr) 1980-05-16
DE2965799D1 (en) 1983-08-04

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