FR3088019A1 - DEVICE FOR PROCESSING WORKPIECES - Google Patents

Description

Description

Title of the invention: DEVICE FOR PROCESSING FACTORY WORKPIECES The present invention relates to a device for treating workpieces advantageously taken out of the machine tool, in view of the elimination of the majority of the cutting oil and shavings covering them.

Bar turning is the machining of revolution parts in series, using automatic lathes. Large amounts of cutting oil are used to prevent the metal parts from heating up, 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 dipping in solvents and / or solutions. watery. Given the high output rates of the machine tool, these cleaning processes require large washing stations and therefore large quantities of treatment products, which is problematic, [0004] A machine tool is usually positioned in the extension of a bar feeder. In the factory, these assemblies, formed by a machine tool and a bar feeder, are aligned in parallel, delimiting corridors for maintenance and reception of parts.

A cleaning installation having a large footprint, the latter is positioned at another location in the factory, away from the aforementioned manufacturing assemblies.

There is a need to have cleaning facilities, near the machine tools at the outlet of the machine tool, for direct cleaning of the machined parts before conveying to the packaging facilities.

The present invention provides a processing device, which overcomes the aforementioned drawbacks.

Thus, the device for processing machined parts according to the invention comprises a set movable in rotation along an axis of rotation and in translation along this same axis of rotation by means of translation.

[0009] Let us add that the mobile assembly is located in a double-walled enclosure, namely an openwork interior wall and a solid exterior wall, the enclosure being open at its upper end, the assembly includes a lower plate intended to evolve from the lower end to the upper end of the enclosure for receiving, processing and removing machined parts.

According to one embodiment, the axis of rotation is inclined at an angle between 5 ° and 45 ° relative to the vertical, namely relative to a perpendicular to the ground.

According to one characteristic, the device comprises a reception ramp and an evacuation ramp, aligned with the axis of rotation.

According to the previous embodiment, the reception ramp and the evacuation ramp are directed along the steepest slope perpendicular to the inclined axis of rotation.

According to an additional characteristic, the upper surface of the lower plate is of frustoconical shape, its upper end being directed towards the upper end of the enclosure.

According to one embodiment, at least the upper surface of the lower plate is made of elastomeric synthetic material.

Let us add that according to an additional characteristic, the lower plate is connected to an upper plate by a cylindrical wall at the periphery of the axis of rotation.

According to the previous characteristic, the means of translation of the assembly is at least one jack whose end is connected to a plate embedded between a stop and the upper plate, the stop being fixed to the upper part of the upper plate.

According to one characteristic, the axis of rotation is a splined shaft.

Note that the diameter of the lower plate is substantially equal to the inner diameter of the inner wall of the enclosure.

According to an additional characteristic, the enclosure is fixed to a chassis.

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.

Figures 1 to 5 are views of the processing device according to an embodiment of the invention.

[FIG. 1] is a perspective view in a processing position.

[FIG. 2] is a sectional view of Figure 1 along A-A.

[FIG. 3] is a perspective view in a position awaiting processing.

[FIG. 4] is a sectional view of Figure 3 along A-A.

[FIG. 5] is a magnification view of the upper end of the mobile assembly.

Thus, the processing device (1) according to the invention comprises an assembly (2) movable in rotation along an axis of rotation (X, X ') by a means of rotation, and in translation along the axis of rotation (X, X ') by a suitable means of translation.

The treatment device (1) allows the treatment, advantageously unitary, of parts machined at the outlet of the machine tool, by a wringing process.

Add that the assembly (2) is embedded in an enclosure (7) secured to a chassis.

The machined parts advantageously come out of a machine tool piece by piece with a continuous and constant flow. These parts are conveyed in the treatment device (1) also continuously, with a regular flow, advantageously by gravity or using an appropriate ramp.

The parts machined at the outlet of the treatment device (1) are cleaned of the majority of the oil covering them, as well as 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.

At the output of the processing device (1), the machined parts are directly ready to be packaged or sent to another machine tool for other machining and finishing steps. Thus, parts transport devices, commonly used in the field, can be connected to the output of the processing device (1) according to the invention, so that the parts are conveyed to other manufacturing stages. The parts leaving the treatment device (1) can also be received in a simple bin, by suitable ramps or by gravity.

The mobile assembly (2) has a profile of revolution and thus comprises a central axis of symmetry, coincident with the aforementioned axis of rotation (X, X '), Let us add that the assembly (2) mobile comprises a lower plate (3) intended to receive a workpiece in view of its processing.

The enclosure (7) with cylindrical profile with double walls (7a, 7b) comprising an outer wall (7b) full and an inner wall (7a) perforated or perforated.

According to the illustrated embodiment, the assembly (2) movable comprises a lower plate (3), an upper plate (5) and a central sleeve (4) connecting the lower plate (3) and the upper plate ( 5).

Note that the central sleeve (4) is a cylindrical wall at the periphery of the axis of rotation (X, X ’).

Note that the axis of rotation (X, X ’) is embedded in the assembly (2) movable along its central axis of symmetry.

For this purpose, the assembly (2) comprises a through hole along its axis of rotation (X, X '), namely that the plates (3, 5) have a disc shape which each include a central orifice , while the central sleeve (4) is hollow.

In other words, the above-mentioned mobile assembly (2) is in the form of a reel, the lower plate (3) of which is intended for receiving a machined part, while the upper plate (6) is intended to partition the upper end of the enclosure (7), during the descent and the rotation of the assembly (2) in the enclosure (7).

Note that the assembly (2) mobile is carried by a central shaft (8) coupled to a motor (9), as a means of rotation.

According to the illustrated embodiment, the motor (9) is integral with an upper part (10) of the chassis, directly above the enclosure (T).

For example, the motor (9) is connected by a belt and a gear system to the central shaft (8), but it could be otherwise, the motor (9) being mounted axially with the central shaft (8).

Note that according to the illustrated embodiment, the central shaft (8) is a splined shaft, while the assembly (2) movable comprises engagement means, such as ribs and / or bearings to balls, engaged in the grooves of the central shaft.

The mobile assembly (2) is thus mounted free in translation along the axis of rotation (X, X ’) along the central shaft (8).

Recall that the central shaft (8) crosses the movable assembly (2) along the central axis of symmetry of the movable assembly (2).

As illustrated in particular in Figure 2, the means for engaging the central shaft (8) are located in the inner profile of the central sleeve (4).

Let us add that the means of translation of the assembly (2) movable along its axis of rotation (X, X '), is constituted for example by at least one jack (14) double effect or two jacks (14 ) single effect, each working in reverse.

According to the embodiment illustrated in particular in Figure 5, the end of the rod of a jack (14) is fixed to a plate (15), arranged perpendicular to the axis of rotation (X, X ' ). The aforementioned plate (15) is inserted into a housing integral with the upper end of the upper plate (5) of the mobile assembly (2).

Note that the aforementioned housing is free to rotate relative to the plate (15), namely that the plate (15) connected to the translation means does not prevent the rotation of the assembly (2) mobile, during spinning a machined part.

As illustrated in Figure 5, the housing is constituted by an intermediate space formed between the upper surface of the upper plate (5) and a stop (16), which is according to the embodiment illustrated in the form a disc secured to the assembly (2) movable by a flange.

Note that the plate (15) connected by means of translation of the assembly (2) mobile, interacts with the stop (16) of the assembly (2) during its rise and with the upper surface of the upper plate (5) during its descent into the enclosure (7).

According to an additional characteristic, the upper surface of the lower plate (3) is frustoconical, more precisely of truncated frustoconical shape.

Note that the truncated apex of the aforementioned frustoconical surface is directed towards the upper end of the enclosure (7), namely upwards, connected to the central sleeve (4).

The previous feature allows to position a machined part on the periphery of the lower plate (3) and to evacuate it by gravity, out of the enclosure (7) when raising the lower plate (3) at the upper end. of the enclosure (7).

As illustrated in Figure 4, the lower plate (3) is provided with a damping piece (17) of synthetic material, preferably of elastomeric material, whose upper surface is frustoconical.

Note that the elastomeric material is resistant to cutting oils.

The elastomeric material of the damping piece (17) assembled to the lower plate (3), makes it possible in particular to ensure the damping of the machined parts when they are received by the mobile assembly (2).

According to an additional characteristic, the lower surface of the upper plate (5) is also of truncated frustoconical shape, the top of which is directed towards the lower end of the enclosure (7), namely downwards. The above-mentioned apex is also connected to the upper end of the central sleeve (4).

The above characteristic makes it possible to limit the possible movements of a machined part during the processing of the latter, and thus to limit the risks of damage to these parts. high added value.

Note that as for the lower plate (3), the upper plate (5) is provided with a damping piece (17) made of synthetic material.

Note that the enclosure (7) is integral with a frame, advantageously provided with feet intended to rest on the ground.

It should also be noted that the enclosure (7) is fixed in rotation and in translation relative to the chassis.

It is understood that the enclosure (7) comprises a means for discharging oil, not shown.

The enclosure (7) is open at its upper end so that a machined part can be received by the mobile assembly (2) and allow the translation of the assembly (2) outside the enclosure ( 7).

According to one characteristic, the diameter of the assembly (2), namely the diameters of the plates (3, 5), is substantially equal to the inside diameter of the inner wall (7a) of the cylindrical enclosure (7) .

According to the previous feature, the inner wall (7a) of the enclosure (7) partitions the outer periphery of the assembly (2), now in position a workpiece on the lower plate (3) during the spinning step, namely the operation of the central shaft (8) by the motor (9).

The kinematics of processing machined parts at the outlet of the machine tool consists in positioning the assembly (2) in the high position of the enclosure (7), or even in the intermediate position, so as to receive a part by the lower plate (3), when the assembly (2) descends into the enclosure (7), when the assembly (2) rotates in view of the evacuation of a maximum of oil cutting and shaving, when the assembly (2) is raised and the treated part is removed.

According to the illustrated embodiment, the chassis comprises a lower part (12) on which the enclosure (7) rests, advantageously by means of silentblocs, as well as an upper part (10) supporting at least the motor (9) for rotating, as well as advantageously the means of translation.

Note that according to the illustrated embodiment, the central shaft (8) passes through the lower part (12) of the chassis to be housed in a hub (18), provided with ball bearings.

Note that the upper part (10) also includes a central hub (19) provided with ball bearings, by which is embedded the central shaft (8).

It should also be noted that the chassis comprises an intermediate part opposite the upper end of the enclosure (7), at which a platform (13) is arranged, as explained in more detail below. the description.

Note that the processing device (1) comprises or is associated with a reception ramp (20) and a discharge ramp for the machined parts, so that the processing of the machined parts is carried out directly at the outlet of a machine tool, automatically.

Note that an evacuation ramp can be an independent part attached to the treatment device (1), attached to the latter, forming part of or constituted by the platform (13), as explained below.

According to the illustrated embodiment, the processing device (1) comprises a platform (13) located at the upper end of the enclosure (7), more precisely arranged at the periphery of the open upper end of the enclosure (7).

Note that the platform (13) includes a peripheral rim open in the direction of the discharge ramp of the treated parts.

The reception ramp (20) and the evacuation ramp communicate with the platform (13) or are intended to communicate with the platform (13).

According to an additional characteristic, the axis of rotation (X, X ’) of the central shaft (8) is inclined, namely making an angle with the vertical axis (Y, Y’) perpendicular to the ground.

It is understood that the vertical axis (Y, Y ’) follows the direction of a plumb line.

More specifically, as illustrated, the lower part (12) of the chassis is inclined relative to its support feet.

Thus, according to the preceding characteristic, the central shaft (8), the assembly (2) and the enclosure (7) are inclined relative to the vertical axis (Y, Y ’) perpendicular to the ground.

The angle of inclination between the axis of rotation (X, X ’) and the vertical axis (Y, Y’) is between 5 and 45 degrees.

Note that the ramps (20) and the platform (13) are also inclined, resulting in the descent by gravity of a workpiece by the receiving ramp (20), the admission of the workpiece by the plate lower (3) of the assembly (2), the treatment of the part by lowering the assembly (2), the rotation, followed by the ascent of the mobile assembly (2) and the evacuation by gravity of the part by the platform (13) and the discharge ramp.

It should also be noted that the reception ramp (20), the axis of rotation (X, X ’) and the evacuation ramp are aligned along the greatest slope, in order to facilitate the evacuation of the parts after treatment.

To facilitate the exit of the machined part, as specified above, the upper surface of the lower plate (3) is frustoconical, the machined parts to be removed are thus positioned directly in the direction of the slope of the axis of rotation. (X, X '), towards the evacuation ramp.

Claims (1)

Claims [Claim 1] Processing device (1) for machined parts, comprising an assembly (2) movable in rotation along an axis of rotation (X, X ') and in translation along said axis of rotation (X, X' ') by means of translation, said movable assembly (2) being located in an enclosure (7) with double walls (7a, 7b), namely an inner wall (7a) perforated and an outer wall (7b) full, said enclosure (7) being open at its upper end, said assembly (2) comprises a lower plate (3) intended to evolve from the lower end to the upper end of the enclosure (7) for the reception, treatment and evacuation of machined parts . [Claim 2] Treatment device (1) according to claim 1, characterized in that the axis of rotation (X, X ') is inclined at an angle between 5 ° and 45 ° relative to the vertical, namely with respect to a perpendicular to the ground. [Claim 3] Treatment device (1) according to claim 2, characterized in that it comprises a reception ramp (20) and a discharge ramp, aligned with the axis of rotation (X, X ’). [Claim 4] Treatment device (1) according to claims 2 and 3, characterized in that the reception ramp (20) and the discharge ramp are directed along the steepest slope perpendicular to the axis of rotation (X, X ') inclined. [Claim 5] Treatment device (1) according to any one of the preceding claims, characterized in that the upper surface of the lower plate (3) is of frustoconical shape, its upper end being directed towards the upper end of the enclosure (7). [Claim 6] Treatment device (1) according to any one of the preceding claims, characterized in that at least the upper surface of the lower plate (3) is made of elastomeric synthetic material. [Claim 7] Treatment device (1) according to any one of the preceding claims, characterized in that the lower plate (3) is connected to an upper plate (5) by a cylindrical wall at the periphery of the axis of rotation (X, X '). [Claim 8] Treatment device (1) according to the preceding claim, characterized in that the means of translation of the assembly (2) is at least one jack (14) whose end is connected to a plate (15) embedded between a stop ( 16) and the upper plate (5), the stop (16) being fixed to the upper part of the upper plate (5). [Claim 9] [Claim 10] [Claim 11] Processing device (1) according to any one of the preceding claims, characterized in that the axis of rotation (X, X ’') is a splined shaft (8). Treatment device (1) according to any one of the preceding claims, characterized in that the diameter of the lower plate (3) is substantially equal to the inside diameter of the inside wall (7a) of the enclosure (7). Treatment device (1) according to any one of the preceding claims, characterized in that the enclosure (7) is fixed to a frame.