FR3064506A1 - DEVICE FOR SEQUENTIALLY PROCESSING WORKED PARTS - Google Patents

Abstract

Apparatus for sequentially cleaning by vibrating machined parts intended to be contained in a workpiece holder, comprising at least one workpiece supported by an oscillating device (3) and connected to a means for discharging oil and chips from cutter, characterized in that the oscillating device (3) comprises a means movable along a longitudinal axis (Y, Y ') and a transverse axis (X, X') connected to at least one carrier mounted on a support (2a ) of the workpiece carrier (s), an intermediate support (6) and a fixed support (7), said carrier (2a) of the workpiece carrier (s) being connected to the intermediate support (6) by at least a first elastic means (8) movable along a longitudinal axis (Y, Y '), said intermediate support (6) being connected to the fixed support (7) by at least a second elastic means (9) movable along a transverse axis (X, X') and a vertical axis (Z, Z '), resulting in homogeneous three-dimensional oscillations of the workpiece carrier (s).

Description

(57) Device for sequential cleaning by vibration of machined parts intended to be contained in a workpiece carrier, comprising at least one workpiece carrier supported by an oscillating device (3) and connected to a means for evacuating the oil and shavings cutting, characterized in that the oscillating device (3) comprises a means movable along a longitudinal axis (Y, Y ') and a transverse axis (X, X') connected to at least one workpiece holder mounted on a support ( 2a) of workpiece (s), an intermediate support (6) and a fixed support (7), said support (2a) of workpiece (s) being connected to the intermediate support (6) by at least a first means elastic (8) movable along a longitudinal axis (Y, Y '), said intermediate support (6) being connected to the fixed support (7) by at least one second elastic means (9) movable along a transverse axis (X, X' ) and a vertical axis (Z, Z '), resulting in homogeneous three-dimensional oscillations of the workpiece carrier (s).

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DEVICE FOR SEQUENTIAL PROCESSING OF FACTORY PARTS

The present invention relates to the treatment of unitary parts, at the outlet of the machine tool, by means of mechanical separation of the oil and of the cutting chips covering them.

Bar turning is the machining of parts, generally of revolution in series, advantageously using automatic lathes. Large amounts of cutting oil are used to prevent the metal parts from heating up, as well as to cool and lubricate the tools.

The parts machined at the outlet of the machine tool are thus covered with an excess of cutting oil and micro-chips. Usually, these machined parts are degreased by processes of soaking in solvents and / or aqueous solutions. Given the high output rates of machine tools, these cleaning processes require large washing stations and therefore large quantities of products to be treated, which is problematic.

The present invention thus provides a device for sequential processing of machined parts, making it possible to overcome the aforementioned drawbacks.

Thus, the sequential cleaning device by vibration of machined parts, according to the invention is intended to be contained in a workpiece carrier, comprising at least one workpiece carrier supported by an oscillating device and connected to a means for evacuating the oil and cutting chips, characterized in that the oscillating device comprises a means movable along a longitudinal axis and a transverse axis connected to at least one workpiece carrier mounted on a workpiece carrier support (s), an intermediate support and a fixed support, said workpiece carrier support being connected to the intermediate support by at least one first elastic means movable along a longitudinal axis, said intermediate support being connected to the fixed support by at least one second elastic means movable according to a transverse axis and a vertical axis, resulting in homogeneous three-dimensional oscillations of the workpiece carrier (s).

Add that the intermediate support is a plate arranged parallel to the support of workpiece (s), while the fixed support is arranged parallel to the intermediate support.

Note that the intermediate support is located between the workpiece support (s) and the fixed support.

Note that the intermediate support is a tray equipped with a through hole in which is arranged the movable means.

According to one characteristic, the second elastic means (s) is / are at least a pair of elastic blades making an angle with the intermediate support and the fixed support, and the movement of the elastic blades of which is directed along the axis.

According to an additional characteristic, the first elastic means (s) is / are at least one blade directed transversely to the longitudinal axis.

According to one embodiment, the workpiece support (s) is an upper plate.

According to an additional characteristic, the mobile means is an eccentric means of rotation.

According to the previous characteristic, the eccentric rotation means is an eccentric shaft interacting with a cam connected to the support of workpiece (s), while the eccentric shaft is driven by a motor.

Note that the fixed support is supported by at least a third elastic means to the chassis of the sequential cleaning device.

Let us add that a workpiece holder is a partitioned enclosure comprising at least one air inlet orifice.

According to one embodiment, the means for discharging the oil is a suction device which comprises a pump connected to a settling chamber intended to collect the oil and the cutting chips, while said settling chamber is connected to at least one workpiece holder.

Other characteristics and advantages of the invention will emerge from the description which follows, with reference to the appended drawings which are given only by way of nonlimiting examples.

FIG. 1 is a side view of the sequential processing device, according to an embodiment of the invention.

Figure 2 is a partial perspective view of the oscillation device.

FIG. 3 is a simplified view in section along A-A of FIG. 2.

FIG. 4 is a simplified view in section along B-B of FIG. 2.

The sequential processing device (1) by vibration of machined parts, according to the invention, comprises at least one workpiece carrier (2) supported by an oscillating device (3) and connected to a means for discharging the oil and cutting chips.

It is understood that the sequential processing device (1) comprises a chassis (10) and protective panels, not shown, restricting access to its constituent elements.

According to the illustrated embodiment, the oil evacuation means is a suction device (4), as explained in more detail in the following description, but it could be otherwise, the means d The evacuation is for example a compressed gas injection device or a mixed compressed gas injection and suction system.

The suction device (4) as illustrated in FIG. 1, comprises a pump (4a) mounted on the chassis (10) of the sequential treatment device (1), connected to a hermetic decantation chamber (4b) or substantially hermetic, arranged below the oscillating device (3), by suitable pipes or evacuation conduits.

According to one characteristic, the decantation chamber (4b) is connected to at least one workpiece carrier (2) by suitable pipes or suction conduits.

Note that the decantation chamber (4b) comprises emptying means, while its upper wall is removable for cleaning the harvested cutting chips.

According to the illustrated embodiment, the sequential processing device (1) is provided by a frame (10) supporting the oscillating device (3) and the suction device (4), but it could be otherwise the suction (4) is independent and located outside the chassis (10), while of course being connected to the sequential processing device (1), more precisely to at least one workpiece carrier (2).

Let us add that the oscillating device (3) comprises a movable means (5), a support (2a) of workpiece carrier (s), an intermediate support (6) and a fixed support (7), as explained in more detail. in the following description.

The components of the oscillating device (3) are connected to each other by elastic means (8, 9), namely at least a first elastic means (8) and at least a second elastic means (9), such as explained in more detail in the following description.

Recall that at least one workpiece carrier (2) is supported by the oscillating device (3), preferably as illustrated in particular in FIG. 2, by means of a support (2a) allowing the arrangement of a plurality of workpiece carriers (2).

According to the illustrated embodiment, the oscillating device (3) comprises a fixed support (7) assembled to the chassis (10) of the sequential processing device (1) by at least a third elastic means (11), such as silent blocks, while the fixed support (7) is presented by a lower plate (7a) arranged parallel to an intermediate support (6) which is presented by a central plate (6a), the plates (6a, 7a) of the fixed support (7) and the intermediate support (6) are connected by at least a second elastic means (9), such as elastic blades (9a) oriented in such a way that they are directed along a transverse axis (X, X ') of ways that the central plate (6a) is movable relative to the lower plate (7a) along a transverse axis (X, X ') and a vertical axis (Z, Z').

More precisely, the elastic blades (9a) make an acute angle, for example of 45 °, with the respective plates (6a, 7a) of the fixed support (7) and the intermediate support (6).

According to one characteristic, the oscillating device (3) comprises a pair of elastic blades (9a), each arranged on either side of the mobile means (5), namely at least the combination of the cam (5c) and of the eccentric shaft (5a), as shown in Figure 3.

Add that according to the previous embodiment, the support (2a) of workpiece holder (s) is presented by an upper plate arranged parallel to the central plate (6a) of the intermediate support (6), while it is connected to this the latter by at least a first elastic means (8), such as blades (8a) directed transversely to the longitudinal axis (Y, Y ') so that the upper plate is at least movable relative to the fixed support along the longitudinal axis (Y, Y ').

More specifically, the first elastic means (8) connecting the support (2a) of the workpiece carrier (s) and the intermediate support (6) is / are connected to an inverted U-shaped connecting piece, so that the upper end of a blade (8a) is connected to the upper plate, while its lower end is connected to the lower end of the connecting piece .

Note also that a junction piece is secured by its upper end to the lower end of the central plate (6a), in other words, a junction piece is suspended by its upper end from the central plate (6a) of the support. intermediate (6).

This connection by the connecting piece allows black only to limit the spacing between the upper plate and the central plate (6a) in order to limit the length of the eccentric shaft (5a), but also to obtain a blade length ( 8a) sufficient to obtain a flexibility adapted to its use.

According to an additional characteristic illustrated in FIGS. 2 and 4, the oscillating device comprises four blades (8a), arranged two by two in opposition, on either side of a junction piece.

The movable means (5), as illustrated in FIGS. 3 and 4, is an eccentric rotation means which comprises an eccentric shaft (5a) whose upper end interacts with a cam (5c) connected, see integrated into the support (2a ) of workpiece carrier (s).

Note that the lower plate (7a) and the central plate (6a) are equipped with concentric through holes through which the eccentric shaft (5a) of the movable means (5) passes.

Note that the eccentric shaft (5a) is driven by a motor (5b) arranged at its lower end, while it is directed along the vertical axis (Z, Z ') and induces movements along the longitudinal axis (Y, Y ') and the transverse axis (X, X') to the assembly formed by the upper plate of the support (2a) of the workpiece carrier (s) and the central plate (6a) of the intermediate support (6) , via the cam (5c).

It should also be noted that the motor (5b) is mounted integral with the lower plate (7a) of the fixed support (7) by a casing arranged at the periphery of the eccentric shaft (5a).

Note that the inner peripheries of the holes emerging from the central plate (6a) of the intermediate support (6) and the lower plate (7a) of the fixed support (7), as well as advantageously from the internal periphery of the cam (5c), comprise bearings which come into contact with the outer periphery of the eccentric shaft (5a) according to the vibration movements generated by the latter.

Note also that the movement along the vertical axis (Z, Z ') of the upper plate of the support (2a) of the workpiece carrier (s), is induced by the elastic blades (9a) via the central plate (6a ) of the intermediate support (6).

Thus, the mobile means (5) generates a homogeneous three-dimensional movement to the support (2a) of the workpiece carrier (s).

This homogeneity of movement, more precisely this balanced three-dimensional movement is partly obtained by the presence of the intermediate support (6) and the configuration of the elastic means (8, 9), namely at least one first elastic means (8) and at least one second elastic means (9).

Note that the absence of the intermediate support (6) would cause a loss of parallelism and would induce inhomogeneous vibrations of the sequential processing device (1).

The parts machined at the outlet of the sequential processing device (1) are cleaned of the majority of the oil covering them, as well as of the residual machining micro-chips. The machined parts thus obtained retain a thin layer of protective oil, in particular necessary to limit the phenomena of corrosion.

It should be noted that a workpiece is positioned in a workpiece carrier (2), in other words a workpiece carrier (2) processes a workpiece unitarily and sequentially by the oscillating device (3),

Note that the separation of the oil by the sequential treatment device (1), according to the invention, is carried out mechanically without the use of solvent.

According to one characteristic, the higher the frequency of oscillation, the less the machined parts contained in a workpiece carrier (2) will be subjected to stresses and impacts against the interior walls, in particular the lateral walls, of the latter.

Note that a workpiece carrier (2) according to the invention is a partitioned enclosure, advantageously made in ways according to the configuration of the workpiece to be treated.

A workpiece carrier (2) is preferably connected to the upper plate of the support (2a) in a removable manner, in order to be able to mount a workpiece carrier (2) adapted to a type of workpieces on a single sequential processing device (1) standardized according to the invention.

According to an additional characteristic, a workpiece carrier (2) is therefore in the form of a closed enclosure, which comprises a removable cover, side walls, as well as a bottom wall which comprises means for fixing to the support (2a ) of the workpiece carrier, while it comprises air inlet orifices and a means of connection by means of oil discharge, preferably to a suction device (4).

According to an additional characteristic, the configuration of the receptacle of the workpiece carrier (2) is adapted to have a play advantageously between 1 to 4 times the amplitude of oscillation. The amplitude of oscillation of the oscillation device (3) is advantageously between 0.1 and 1 millimeter.

The amplitude of oscillation depends on the profile of the cam (5c) and that of the eccentric shaft (5a) with which it interacts.

It is understood that a modification of the profile of the cam (5c) or that of the eccentric shaft (5a), modifies the oscillation movement, and therefore modifies the amplitude of oscillation.

According to one embodiment, the internal profile of the cam (5c) is a blind hole which is presented by an oblong hole. It is understood that an oblong hole is the sum of a rectangular lumen and two half-cylinders. The parallel faces of the rectangular light, advantageously have a length between 0.1 and 1 millimeter, preferably between 0.2 and 0.5 millimeter.

The eccentric shaft (5a) is advantageously a shaft of revolution which comprises at its end, a cylinder whose center is eccentric with respect to that of the shaft of revolution.

The end of the eccentric shaft (5c) has a dimension less than or equal to that of the semi-cylindrical parts of the oblong hole of the cam (5c).

According to the illustrated embodiment, the axis of the motor (5b) and the base of the shaft of revolution of the eccentric shaft (5a) are advantageously concentric, connected by a transmission means.

According to the previous embodiment, as illustrated in Figures 3 and

4, the motor (5c), the transmission means, not shown, and the eccentric shaft (5a) driving the cam (5c), are oriented along a common axis. In other words, the motor (5b) and the eccentric shaft (5a) are arranged one below the other, along a common axis of rotation.

A workpiece carrier (2) comprises at least one air inlet orifice, favoring the creation of zones of acceleration of the mixture formed by the oil, covering a workpiece and the surrounding air, by venturi effect, during for vibrating stress on a workpiece in the receptacle of a workpiece carrier (2). This phenomenon increases the evacuation of oils covering the machined parts to be treated, promoting their cleaning.

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Claims (13)

1. Sequential cleaning device (1) by vibration of machined parts intended to be contained in a workpiece carrier (2), comprising at least one workpiece carrier (2) supported by an oscillating device (3) and connected to a means 5 for discharging the oil and the cutting chips, characterized in that the oscillating device (3) comprises a movable means (5) along a longitudinal axis (Y, Y ') and a transverse axis (X, X' ) connected to at least one workpiece carrier (2) mounted on a support (2a) of workpiece carrier (s), an intermediate support (6) and a fixed support (7), said support (2a) of workpiece carrier (s) ) 10 being connected to the intermediate support (6) by at least one first elastic means (8) movable along a longitudinal axis (Y, Y '), said intermediate support (6) being connected to the fixed support (7) by at least a second elastic means (9) movable along a transverse axis (X, X ') and a vertical axis (Z, Z'), resulting in homogeneous three-dimensional oscillations of the 15 workpiece holder (s) (2). 2. sequential cleaning device (1) according to claim 1, characterized in that the intermediate support (6) is a plate (6a) arranged parallel to the support (2a) of workpiece (s), while the fixed support (7) is arranged parallel to the intermediate support (6). 20 3. Sequential cleaning device (1) according to the preceding claim, characterized in that the intermediate support (6) is located between the support (2a) of workpiece (s) and the fixed support (7). 4. sequential cleaning device (1) according to the preceding claim, characterized in that the intermediate support (6) is a tray 25 (6a) equipped with a through hole (6b) in which the mobile means (5) is arranged 5. A sequential cleaning device (1) according to any one of the preceding claims, characterized in that the second elastic means (9) is / are at least a pair of blades elastics (9a) making a 30 angle with the intermediate support (6) and the fixed support (7), and whose movement of the elastic blades (9a) is directed at least according to Tax (X, X '). not 6. sequential cleaning device (1) according to any one of the preceding claims, characterized in that the (s) first (s) elastic means (s) (8) is / are at least one blade (8a ) directed transversely to the longitudinal axis (Y, Y '). 7. sequential cleaning device (1) according to any one of the preceding claims, characterized in that the support (2a) of portpièce (s) is an upper plate. 8. sequential cleaning device (1) according to any one of the preceding claims, characterized in that the movable means (5) is an eccentric rotation means. 9. sequential cleaning device (1) according to the preceding claim, characterized in that the eccentric rotation means is an eccentric shaft (5a) interacting with a cam (5c) connected to the support (2a) of workpiece carrier (s) , while the eccentric shaft (5a) is driven by a motor (5b). 10. sequential cleaning device (1) according to any one of the preceding claims, characterized in that the fixed support (7) is supported by at least a third elastic means to the frame (10) of the sequential cleaning device (1) . 11. Sequential cleaning device (1) according to any one of the preceding claims, characterized in that a workpiece carrier (2) is a partitioned enclosure comprising at least one air inlet orifice. 12. Sequential cleaning device (1) according to any one of the preceding claims, characterized in that the oil discharge means is a suction device (4). 13. sequential cleaning device (1) according to the preceding claim, characterized in that the suction device (4) comprises a pump (4a) connected to a settling chamber (4b) intended to collect the oil and the chips cutting, while said settling chamber (4b) is connected to at least one workpiece carrier (2). 1/4