WO2017115122A1 - Device for handling a workpiece - Google Patents

Abstract

A handling device (1) comprising a plate (7) with a top face (7a) intended to receive a mechanical shaft (200) and a bottom face (7b), characterised in that the handling device (1) further comprises: - a first sliding attachment means (8) mounted on the bottom face (7b) of the plate; - a first movable arm (100) comprising: • a main body (110) comprising a first end (111) and a second end (112); • a guiding head (120) mounted rotatably on the main body (110) of the first movable arm (100) at the first end (111) of the main body of the first movable arm, the rotation taking place about an axis perpendicular to the main axis of the main body (110) of the first movable arm and in a plane perpendicular to the plane defined by the plate (7); the first movable arm (100) being mounted rotatably on the first sliding attachment means (8) at the second end (112) of the main body (110) of the first movable arm about an axis of rotation parallel to the axis of rotation of the guiding head (120) of the first movable arm.

Description

 DEVICE FOR HANDLING A PIECE

TECHNICAL FIELD The invention relates to a device for handling a part. More particularly, the invention relates to a handling device for receiving a mechanical shaft, for example a compressor shaft.

STATE OF THE PRIOR ART

It is known in factories manufacturing mechanical parts to use handling devices. Generally, each handling device is dedicated to an operation. It is then necessary to move the mechanical parts of a handling device to another depending on the operations to be performed. It may for example be a lifting operation, an inspection operation, a moving operation, etc. These various operations therefore require many manipulations of the mechanical part, which each time involves the risk of degradation due to improper handling resulting for example a fall of the part or shock. A handling device for performing several operations has certainly been proposed in the application WO 99/29473, but said device is limited to simple operations and therefore does not allow to perform complex operations such as lifting a part.

There is therefore a need for a device that makes it possible to perform a plurality of operations thus avoiding manipulation of the mechanical part, for example during a lifting or inspection operation.

SUMMARY OF THE INVENTION For this, the invention proposes a handling device for performing different operations using a single device. These operations may for example be lifting operations or inspection operations.

The invention relates to a handling device comprising a tray intended for receive a mechanical shaft, for example a compressor shaft.

The handling device further comprises:

 a first sliding fastening means mounted on the plate;

 - a first movable arm.

The first movable arm comprises:

 a main body having a first end and a second end;

 a guide head rotatably mounted on the main body of the first movable arm at the first end of the main body of the first movable arm, the rotation being effected along an axis perpendicular to the main axis of the main body of the first arm; mobile and in a plane perpendicular to the plane defined by the plate;

the first movable arm being mounted on the first sliding fastening means, at the second end of the main body of the first movable arm.

Thus, with a single device it is possible to perform several handling operations. First, a first inspection may be performed when a shaft, for example a compressor shaft, rests on the upper surface of the tray. The first movable arm can then be put in place to proceed to a step of lifting the shaft, one end of this shaft being held by the guide head of the first movable arm during the lifting operation. The handling device may also have one or more of the following features taken independently or in any technically possible combination.

Advantageously, the device further comprises:

 a second sliding fastening means mounted on the plate opposite the first sliding fastening means;

- a second mobile arm. The second movable arm comprises:

 a main body having a first end and a second end;

 - A guide head rotatably mounted on the main body of the second movable arm at the first end of the main body of the second movable arm, the rotation being effected along an axis perpendicular to the main axis of the main body of the second arm mobile and in a plane perpendicular to the plane defined by the plate;

the second movable arm being mounted on the second sliding fastening means, at the second end of the second main body of the second movable arm.

The first and second movable arms being arranged symmetrically, it is possible to position a guide element in each of the ends of a shaft disposed on the plate, and thus to proceed to a lifting operation of the shaft in two configurations. different, which facilitates handling operations.

Advantageously, the plate comprises an upper face, said upper face being intended to receive a mechanical shaft and a lower face, the first fixing means and / or the second fixing means being mounted on said lower face, the mounting of the first movable arm on the first sliding fastening means being a rotational mounting along an axis of rotation parallel to the axis of rotation of the guide head of the first movable arm and / or the mounting of the second movable arm on the second sliding fastening means being a rotational mounting along an axis of rotation parallel to the axis of rotation of the guide head of the second movable arm.

Advantageously, the at least one movable arm alternates between a rest position in which the at least one movable arm is retracted and located under the tray and a working position in which the guide head of the at least one movable arm is inserted into a opening a tubular body of a shaft disposed on the upper face of the plate.

Thus, when the movable arm is no longer used, it is possible to store the latter in the handling device. Advantageously, the handling device further comprises at least one locking means located on the upper face of the plate locking the main body of the first or second movable arm when said first or second movable arm is in the working position.

This ensures the stability of the movable arm during the lifting operation.

Advantageously, the locking means comprises at least a first position and a second locking position of the main body of the first movable arm or the second movable arm.

It is thus possible to adapt the locking position as a function of the length of the shaft disposed on the upper face of the plate.

Preferably, the handling device further comprises a plurality of support rollers disposed on the upper face of the plate, the plurality of support rollers supporting a shaft when said shaft is disposed on the upper face of the plate.

The presence of support rollers facilitates the rotation of the shaft along its main axis when the latter is in position on the plate. In addition, the rollers are arranged to collaborate with the shapes of the shaft and thus ensure the immobilization of the shaft in translation.

Advantageously, at least one support wheel is adjustable in position, the positioning of the at least one adjustable support wheel being performed by means of at least one bracket located on the upper face of the plate at the level of the at least one adjustable support wheel, clamping means for immobilizing the at least one adjustable support wheel in a selected position.

Thus, it is possible to adjust the position of the support rollers according to the length and shape of the shaft disposed on the upper face of the plate. Preferably, at least one notch is made in the tray providing at least one passage to the main body of the first movable arm or the second movable arm when the first movable arm or the second movable arm is in the working position. This notch provides a large plateau area while allowing the establishment of the at least one movable arm at one of the ends of the shaft.

Advantageously, the handling device further comprises at least one holding means for locking the first movable arm or the second movable arm at the first end of the main body of the first movable arm or the second movable arm when the first movable arm or the second movable arm is in the rest position. Thus, when at least one of the movable arms is in the rest position under the handling device, the at least one movable arm is properly immobilized.

Preferably, the handling device comprises a plurality of wheels, the assembly forming a handling trolley.

This gives a mobile handling device, which allows to move the shaft disposed on the upper face of the tray during the various handling operations. BRIEF DESCRIPTION OF THE FIGURES

Other characteristics and advantages of the invention will emerge on reading the detailed description which follows, with reference to the appended figures, which illustrate:

 - Figure 1, a general view of the device according to the invention;

 - Figures 2A to 2C, the alternation between the rest position and the working position of a movable arm according to the invention;

 FIGS. 3A to 3D, a first example of implementation of the mobile arm according to the invention;

FIGS. 4A to 4C, a second example of implementation of the movable arm according to the invention;

 - Figures 5A and 5B, the locking means of the movable arm according to the invention;

 - Figure 6, the rest position of the movable arm according to the invention;

 FIGS. 7A and 7B, the second movable arm according to the invention;

 - Figure 8, the two lifting positions according to the invention.

DETAILED DESCRIPTION

In an embodiment illustrated in Figure 1, the handling device 1 according to the invention comprises a plate 7 for receiving a shaft 200, for example a compressor shaft.

The handling device according to the invention further comprises:

 a first sliding fastening means 8 mounted on the plate;

 a first movable arm 100.

The first mobile arm 100 of the device according to the invention comprises:

 a main body 110 having a first end 111 and a second end 112;

 a guide head 120 rotatably mounted on the main body 1 10 of the first movable arm 100 at the first end 111 of the main body 110 of the first movable arm 100, the rotation being effected along an axis perpendicular to the axis principal of the main body 110 of the first movable arm 100 and in a plane perpendicular to the plane defined by the plate 7; the first movable arm 100 being mounted on the first sliding fastening means 8, at the second end 112 of the main body 110 of the first movable arm 100.

In one embodiment, the plate 7 comprises an upper face 7a, said upper face 7a being intended to receive the mechanical shaft 200 and a lower face 7b. In addition, the first fixing means 8 is mounted on said lower face 7b, the mounting of the first movable arm 100 on the first sliding fastening means 8 being a rotational mounting along an axis of rotation parallel to the axis of rotation. rotation of the guide head 120 of the first movable arm 00.

In one embodiment, the device comprises a plurality of wheels 6, the assembly forming a handling trolley 1. It is thus possible to easily move the handling device 1.

In one embodiment, the carriage further comprises handles 9 arranged on one of the widths of said carriage 6 so as to facilitate its handling. In one embodiment, a plurality of support rollers 30 is disposed on the upper face 7a of the plate 7, the plurality of support rollers 30 supporting a shaft 200 when said shaft 200 is disposed in a substantially horizontal position parallel to the upper face 7a of the plate 7. The support rollers 30 allow in particular a rotation of the shaft 200 along the main axis of said shaft. Such rotation is particularly suitable during inspection operations, the inspection can be performed on the entire shaft 200.

Preferably, the support rollers 30 are configured to collaborate with the shaft 200 so as to immobilize the shaft 200 in translation. For example, grooves may be present on the shaft 200. The support rollers 30 are then positioned so as to collaborate with said grooves and thus immobilize the shaft 200 in translation.

In an embodiment illustrated in FIGS. 2A to 2C, the first movable arm 100 alternates between a rest position R in which the first movable arm 100 is retracted and located under the plate 7 and a working position T in which the first arm mobile 100 is erected substantially perpendicular to the plate 7 and its rest position R. In this working position T, the guide head 120 of the first movable arm 100 is inserted into an opening 211 of a tubular body 210 of a shaft 200 disposed on the upper face 7a of the plate 7.

In one embodiment, the device according to the invention comprises at least one notch 60 made in the plate 7 and providing at least one passage to the main body 110 of the first mobile arm 100 when the first movable arm 100 is in position. working position T. This makes it possible to have a larger plate 7, and thus a larger work surface while allowing the guide head 120 of the first mobile arm 100 to be inserted into a hole 211 of the tubular body 210 of the shaft 200. The transition from the rest position R to the working position T is in four steps illustrated in Figures 3A to 3D. In a first step (FIG. 3A), the first movable arm 100 operates a first translation so as to project with the plate 7. This translation is made possible by the first sliding fastening means 8. In order to make this operation easier, it is possible to have a handle 130 at the main body 1 0 of the first movable arm 100. The main axis of the guide head 120 is in the extension of the main axis of the main body 110 of the first movable arm 100. In a second step (FIG. 3B), the guide head 120 of the first movable arm 100 rotates so that the main axis of the movable head 120 of the first movable arm 100 is perpendicular to the main axis of the main body 110. of the first movable arm 100, the rotation being in a plane perpendicular to the plane of the plate 7. The guide head 120 is oriented towards the plate 7. In a third step (FIG. 3C), the main body 10 of the first movable arm 100 operates a rotation so that the main axis of the guide head 120 of the first movable arm 100 and the main axis of a tubular body 210 of a shaft 200 disposed on the upper surface 7a of the plate 7 are substantially merged. In the last step (FIG. 3D), the first mobile arm 100 operates a second translation in a direction opposite to the first translation so that the guide head 120 of the first mobile arm 100 is inserted into the opening 21 of the tubular body 210 of the shaft 200.

In one embodiment illustrated in FIGS. 4A to 4C, once the first movable arm 100 in working position T, the tree 200 is lifted. For this, in a first step (FIG. 4A), a sling hoist 310 connected to a lifting apparatus 300 is hooked at a second opening 212 of the tubular body 210 of the shaft 200. In a second step (Figure 4B), the hoist 300 is actuated and the shaft 200 operates a rotation along an axis of rotation coincides with the axis of rotation of the guide head 120 of the first movable arm 100. Indeed, during this step, the guide head 120 of the first movable arm 100 will have for role of guiding the shaft 200 during its movement. When the shaft 200 is in position vertical (Figure 4C), the main axes of the shaft 200, the guide head 120 and the main body 110 of the first movable arm 100 coincide in an axis S. This alignment gives the assembly greater mechanical stability . In one embodiment illustrated in FIGS. 5A and 5B, the length of the shaft 200 disposed on the upper surface 7a of the plate 7 being liable to vary, it is also planned to have at least one adjustable support wheel in position 30 '. Adjusting the position of the support wheel 30 'can be effected by means of one or more brackets 40, 40' located on the upper face 7a of the plate 7 at the level of the adjustable support wheel 30 ', clamping means 41 for immobilizing the adjustable support wheel 30 'in a selected position. Preferentially, an even number of adjustable support rollers 30 'will be chosen so that said adjustable support rollers 30' collaborate in opposition at the level of the shaft 200.

In one embodiment, locking means 20 are arranged on the upper face 7a of the plate 7 in order to lock the first movable arm 100 in the working position T. The locking of the first movable arm 100 in the working position T can be performed by means of a pin 21 ', 22' mounted on a spring. In this case, it is planned to arrange on the main body 110 of the first movable arm at least one orifice (not shown) intended to collaborate with the pin 21 ', 22' in order to lock the first movable arm 100 in the working position T.

In one embodiment, there is provided a first pin 21 'and a second pin 22' respectively corresponding to a first locking position 21 and a second locking position 22. It is thus possible to lock the first movable arm 100 in two different positions 21, 22 depending on the length of the shaft 200 disposed on the upper face 7a of the main plate 7. In an embodiment illustrated in Figure 6, the device further comprises a holding means 50 for blocking the first movable arm 100 at the first end 111 of the first movable arm 100 when the movable arm 100 is in the rest position R. The main body 110 of the first movable arm 100 may comprise protuberances 140 configured to collaborate with the means of support. keeping 50 and thus improve the maintenance of the first movable arm 100 in the rest position R.

In one embodiment, the first sliding fastening means 8 takes the form of a first tongue 10 and a second tongue 11 facing one another and sliding in a rail 70, the rail 70 being fixed on the lower surface 7b of the plate 7. Preferably, the rail 70 is located at the notch 60 and arranged parallel thereto. In this case, the rail 70 is broken down into a first element 70 'and a second element 70 "distinct from each other and located on either side of the notch 60, the first and second tongues 10, 11 of the first sliding fastening means 8 cooperating with the first and second elements 70 ', 70 "of the rail 70 to constitute the first sliding fastening means 8.

In an embodiment illustrated in FIGS. 7A and 7B, the handling system comprises:

 - A second sliding fastening means 8 'mounted on the plate 7 opposite to the first sliding fastening means 8;

 a second movable arm 100 '.

Preferably, the mechanical structure of the second sliding fastening means 8 'is similar to the mechanical structure of the first sliding fastening means 8.

The second movable arm 100 'comprises:

 a main body 110 'having a first end 111' and a second end 112 ';

 a guide head 120 'rotatably mounted on the main body 110' of the second mobile arm 100 'at the first end of the main body 110' of the second mobile arm 100 ', the rotation being effected along an axis perpendicular to the main axis of the main body 110 'of the second movable arm 100' and in a plane perpendicular to the plane defined by the plate 7;

the second movable arm 100 'being mounted the second sliding fastening means 8', at the second end 112 'of the main body 110' of the second movable arm 100 '. In one embodiment, the second fastening means 8 'is mounted on the lower face 7b of the plate 7, the mounting of the second movable arm 100' on the second sliding fastening means 8 'being a rotational mounting along an axis of rotation parallel to the axis of rotation of the guide head 120 'of the second movable arm 100'.

In one embodiment, in the same manner as the first movable arm 100, the second movable arm 100 'alternates between a rest position R' in which the second movable arm 100 'is retracted and located under the tray 7 and a position T 'in which the guide head 120' of the second movable arm 100 'is inserted into an opening 212 of a tubular body 210 of a shaft 200 disposed on the upper face 7a of the plate 7.

In one embodiment, locking means 25 are arranged on the upper face 7a of the plate 7 in order to lock the second mobile arm 100 'in the working position T. The locking of the second mobile arm 100' in the working position T 'can be performed by means of a pin 26 mounted on a spring. In this case, provision is made to arrange on the main body 110 'of the second mobile arm 100' at least one orifice 150 intended to collaborate with the pin in order to lock the second mobile arm 100 '.

In one embodiment, the device further comprises a second holding means (not shown) for locking the second movable arm 100 'at the first end 11' of the second movable arm 100 'when the movable arm 100' is in the rest position R '. The main body 110 'of the second movable arm 100' may comprise protuberances 140 'configured to collaborate with the holding means and thus improve the retention of the second movable arm 100' in the rest position R '.

In one embodiment, the adjustment as a function of the length of the shaft 200 is performed at the first movable arm 100 through the two locking positions 21, 22, the adjustable support rollers 30 'being located near the first movable arm 100, the support rollers 30 close to the second movable arm 100 'are not adjustable. The second movable arm 100 'can be implemented similarly to the first movable arm in order to lift the shaft 200. There are then two lifting positions L1, L2 of the shaft 200 as shown in FIG. 8 In a first lifting position L1, the shaft 200 is held by the first movable arm 100. In a second lifting position L2, the shaft 200 is held by the second movable arm 100 '.

Claims

Handling device (1) comprising a plate (7) for receiving a mechanical shaft (200), characterized in that the handling device (1) comprises:  a first sliding fastening means (8) mounted on the plate (7);  a first movable arm (100) comprising:  A main body (110) having a first end (111) and a second end (112);  A guide head (120) rotatably mounted on the main body (110) of the first movable arm (100) at the first end (111) of the main body of the first movable arm, the rotation being effected along an axis perpendicular to the main axis of the main body (110) of the first movable arm and in a plane perpendicular to the plane defined by the plate (7); the first movable arm (100) being mounted on the first sliding fastening means (8) at the second end (112) of the main body (1 10) of the first movable arm. Handling device (1) according to claim 1 characterized in that it further comprises:  a second sliding fastening means (8 ') mounted on the plate (7) opposite to the first sliding fastening means (8);  a second movable arm (100 '), the second movable arm comprising:  A main body (110 ') having a first end (11') and a second end (112 '); A guide head (120 ') rotatably mounted on the body main (110 ') of the second movable arm at the first end (111') of the main body (110 ') of the second movable arm, the rotation being effected along an axis perpendicular to the main axis of the main body (110 ') of the second movable arm and in a plane perpendicular to the plane defined by the plate (7); the second movable arm (100) being mounted on the second sliding fastening means (8), at the second end (112) of the main body (110) of the second movable arm. Device according to one of the preceding claims characterized in that the plate (7) comprises an upper face (7a), said upper face (7a) being intended to receive a mechanical shaft (200) and a lower face (7b), the first fastening means (8) and / or the second fixing means (8) being mounted on said lower face (7b), the mounting of the first movable arm (100) on the first sliding fastening means (8) being a mounting in rotation along an axis of rotation parallel to the axis of rotation of the guide head (120) of the first movable arm (100) and / or the mounting of the second movable arm (100) on the second sliding fastening means (8) ) being rotatably mounted along an axis of rotation parallel to the axis of rotation of the guide head (120) of the second movable arm (100). Handling device according to the preceding claim characterized in that the at least one movable arm alternates between a rest position (R, R ') wherein said at least one movable arm (100, 100') is retracted and located under the tray (7) and a working position (T, T) in which the guide head (120, 120 ') of the at least one movable arm (100, 100') is inserted into an opening (211, 212) of a tubular body (210) of a shaft (200) disposed on the plate (7). Handling device according to the preceding claim comprising at least one locking means (20) located on the upper face (7a) of the plate (7) locking the main body (110, 110 ') of the first or the second movable arm (100, 100 ') when said first or second movable arm is in the working position (T, T). 6. Handling device according to the preceding claim characterized in that the locking means (20) comprises at least a first position (21) and a second position (22) for locking the main body of the first movable arm or the second movable arm. (100, 100 '). Handling device according to one of the preceding claims further comprising a plurality of support rollers (30) disposed on the upper face (7a) of the plate (7), the plurality of support rollers (30) supporting the shaft (200) when said shaft is disposed on the upper face (7a) of the plate (7). Handling device according to the preceding claim characterized in that at least one support wheel (30) is adjustable in position, the positioning of the at least one adjustable support wheel (30 ') being effected by means of at least one bracket (40) located on the upper face (7a) of the plate (7) at the level of the at least one adjustable support wheel (30 '), clamping means (41) immobilizing the at least one wheel adjustable support (30 ') in a selected position. Handling device according to one of claims 4 to 8 in their dependence on claim 4 characterized in that at least one notch (60) is formed in the plate (7) providing at least one passage to the main body (110, 110 ') of the first movable arm (100) or the second movable arm (100') when the first movable arm (100) or the second movable arm (100 ') is in the working position (T, T'). Handling device according to one of claims 4 to 9 in their dependence on claim 4 further comprising at least one holding means (50) blocking the first movable arm (100) at the first end (111) of the body (110) of the first movable arm (100) or the second movable arm (100 ') at the first end (111 ') of the main body (110') of the second movable arm (100 ') when the first movable arm (100) or the second movable arm (100') is in the rest position (R, R '). Handling device according to one of the preceding claims characterized in that it comprises a plurality of wheels (6), the assembly forming a handling carriage (1).