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Title:
MODULAR VISE FOR WORKING BLANKS AND SEMIFINISHED AND FINISHED PARTS
Document Type and Number:
WIPO Patent Application WO/2014/072092
Kind Code:
A1
Abstract:
A modular vise (1) for working blanks and semifinished and finished parts, which is constituted by a footing (3), which can be associated with a base plate (6), with which it is possible to associate a first pusher assembly and a second pusher assembly with inclined jaws for the clamping and separate lifting of the part (2).

Inventors:
CANUTO ALMERINO (IT)
Application Number:
PCT/EP2013/067905
Publication Date:
May 15, 2014
Filing Date:
August 29, 2013
Export Citation:
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Assignee:
CANUTO ALMERINO (IT)
International Classes:
B25B5/08; B25B1/08; B25B1/24
Domestic Patent References:
WO2001012355A12001-02-22
Foreign References:
DE3237705A11983-09-01
US5324013A1994-06-28
US3406958A1968-10-22
GB2245202A1992-01-02
GB1217741A1970-12-31
Other References:
"ANNOUNCEMENT", ORGANI DI TRASMISSIONE, TECNICHE NUOVE. MILANO, IT, vol. 24, no. 10, 1 November 1993 (1993-11-01), pages 24 - 25, XP000415087, ISSN: 0030-4905
Attorney, Agent or Firm:
MODIANO, Micaela et al. (Via Meravigli 16, Milano, IT)
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Claims:
CLAIMS

1. A modular vise (1) for working blanks and semifinished and finished parts (2), characterized in that it is constituted by a footing (3), which can be associated with a base plate (6), with which it is possible to associate a first pusher assembly and a second pusher assembly with inclined jaws for the clamping and separate lifting of said part (2).

2. The vise according to claim 1 , characterized in that said footing

(3) , has, in a side view, an L-shaped cross-section so as to form a first wing

(4) and a second wing (5a), said first wing (4) being able to be associated with said underlying base plate (6) with a fixed abutment by means of adapted first screws (7), at said second wing (5a) a slot (8) being formed that has a first surface (9) that is inclined and faces the direction of a corresponding second flat surface (10) of said part (2), said first surface (9) having an inclination with respect to said first wing (4) that forms an acute angle if one considers a counterclockwise rotation.

3. The vise according to claims 1 and 2, characterized in that a second wing (5b) is associated in an upward region, by means of one or more second screws (11), with one end of said first wing (4) and has a third surface (12) that is inclined and faces the direction of a corresponding fourth flat surface (13) of said part (2), said second surface (12) having an inclination with respect to said first wing (4) that forms an acute angle, considering a clockwise rotation.

4. The vise according to claim 3, characterized in that at said slot (8) and at said third surface (12) it is possible to associate a first pusher assembly constituted respectively by a first jaw (13) and a second jaw (14), which have, on the side opposite to said second and fourth surfaces (10, 13), respectively a fifth surface (15) and a sixth surface (16), which are shaped complementary to said first surface (9) and to the third surface (12).

5. The vise according to claim 4, characterized in that said first and second jaws (13, 14) can move slidingly with respect to said first surface (9) and said third surface (12) by means of third screws (17) the activation of which, thanks to the presence of the inclined planes on which said first and fifth surfaces (9, 15) and said third and fourth surfaces (12, 16) lie, allows a movement of the free ends (18, 19) of said first and second jaws (13, 14) in the direction of said facing second and fourth surfaces (10, 13) of said part (2)ยท

6. The vise according to claim 5, characterized in that said free ends (18, 19) are smooth or have a desired knurling and in that their surface directed toward said part (2) is arc-shaped or flat.

7. The vise according to claim 5, characterized in that said second pusher assembly with inclined jaws for the lifting of said part (2) is constituted by at least one piston (20) that is associated slidingly at an adapted first seat (21) that is provided at right angles to said first wing (4) of said footing (3) in a region that is adjacent to said first and second jaws (13, 14) but faces them, at the lower end of said piston (20) accommodated within said first wing (4) a first diametrical hole (22) being provided and, along mutually opposite planes which are perpendicular to the axis of said first diametrical hole, a pair of seventh surfaces (23a, 23b) that are arranged so as to be inclined with such an inclination as to both converge in the direction of said base plate (6).

8. The vise according to one or more of the preceding claims, characterized in that a third jaw (24) and a fourth jaw (25) cooperate to constitute said second pusher assembly, have the shape of a cylindrical sleeve, are axially perforated and operate at adapted second seats (26a, 26b) provided along the same axis as said first diametrical hole (22), said third and fourth jaws (24, 25) each having an eighth surface (27a, 27b) that has the same inclination as said seventh surfaces (23a, 23b).

9. The vise according to one or more of the preceding claims, characterized in that said third and fourth jaws (24, 25) are interconnected by means of a third screw (28), the head (29) of which is associated rotatably at said third jaw (24) and the threaded stem (30) of which interacts with a complementary thread provided axially to said fourth jaw (25), said third screw (28) forcing or not forcing the lifting of said at least one piston (20) and therefore varying the position of the end (31) thereof with respect to the plane of arrangement of the smooth or corrugated upper surface (32) of said first wing (4) of said footing (3).

Description:
MODULAR VISE FOR WORKING BLANKS AND SEMIFINISHED AND FINISHED PARTS

The present invention relates to a modular vise for working blank, semifinished and finished parts.

EP 1346794B1 is currently known which relates to a modular structure, particularly for mounting on retainers semifinished parts, which deals with the problem observed when it is necessary to perform certain operations, such as for example painting, cleaning and assembly, or various kinds of work, such as for example chip-forming work, that require the locking of the part and/or semifinished part in a position that is preset for its processing.

In the background art, moreover, vises are used the function of which is to lock the part to be worked, said vises being usable in combination with the teachings according to the cited European patent.

Vises of the known type, which are usually provided monolithically, however have many drawbacks that are due essentially to limited maneuverability thereof, which does not allow optimum and easy placement of the part to be worked.

These vises of a known type furthermore have considerable weights and do not allow easy and precise fixing of parts to be worked that have large dimensions.

Moreover, vises of the known type usually have a limited clamping stroke: this entails the need for providing different types of vises that will have to be used according to the specific size of the part to be worked.

This entails time for the assembly/disassembly of the vises and for placing the product to be worked online, which increases working times and therefore working costs.

Finally, in vises of the known type there is considerable difficulty in trying to level the part to be worked with respect for example to the plate to which it is to be fixed. The aim of the present invention is therefore to solve the described technical problems, eliminating the drawbacks of the cited background art and thus providing a vise that makes it possible to obtain quickly and easily various configurations for the position of the part to be worked.

Within this aim, an object of the present invention is to provide a vise that allows optimum fixing of the parts even if they have different shapes and dimensions.

A further object is to obtain a vise that allows quick and easy adjustment of the position of the part to be worked.

A still further object is to obtain a vise that makes it possible to achieve an optimum planar shape of the part to be worked.

Another object is to provide a vise that can allow optimum adjustment of the position of the part to be worked regardless of whether it has an irregular or a smooth surface.

Another object is to obtain an invention that combines the above- cited characteristics with the characteristic of low manufacturing costs and that is obtainable with usual and known machines and equipment.

This aim and these objects, as well as others that will become more apparent hereinafter, are achieved by a modular vise for working blanks and semifinished and finished parts, characterized in that it is constituted by a footing, which can be associated with a base plate, with which it is possible to associate a first pusher assembly and a second pusher assembly with inclined jaws for the clamping and separate lifting of said part.

Further characteristics and advantages of the invention will become more apparent from the detailed description of a particular but not exclusive embodiment, illustrated by way of non-limiting example in the accompanying drawings, wherein:

Figure 1 is a lateral perspective view of three vises associated with a base plate without the part to be worked;

Figure 2 is a view of the invention, similar to Figure 1, illustrating schematically a part to be worked;

Figure 3 is a plan view of the invention according to the preceding figure;

Figure 4 is a sectional view, along the plane IV-IV of Figure 3 ;

Figures 5 and 6 are two lateral perspective views of two vises;

Figure 7 is a lateral perspective view of the second pusher assembly with inclined jaws for lifting the part to be worked;

Figure 8 is a sectional view, along the plane VIII- VIII of Figure 5; Figure 9 is a view of a detail of a vise;

Figure 10 is a view of a different embodiment for the second jaw.

In the exemplary embodiments that follow, individual characteristics, given in relation to specific examples, may actually be interchanged with other different characteristics that exist in other exemplary embodiments.

With reference to the figures cited above, the numeral 1 designates a modular vise for working blanks and semifinished and finished parts 2.

The vise is constituted by a footing 3 which, in a first embodiment, has, in a side view, an L-shaped cross- section so as to form a first wing 4 and a second wing 5 a.

The first wing 4 can be associated with an underlying base plate 6 with a fixed abutment by means of adapted first screws 7.

In this first embodiment, at said second wing 5 a there is a slot 8 that has a first surface 9 that is inclined and faces the direction of a corresponding second flat surface 10 of the part 2.

The first surface 9 has an inclination with respect to the first wing 4 that forms an acute angle, considering a counterclockwise rotation.

In a second embodiment, a second wing 5b is associated in an upward region with one end of the first wing 4 by means of one or more adapted second screws 11 and has a third surface 12 that is inclined and faces the direction of a corresponding fourth flat surface 13 of the part 2.

The second surface 12 has an inclination with respect to the first wing 4 that forms an acute angle, considering a clockwise rotation.

A first pusher assembly can be associated at the slot 8 and at the third surface 12 and is constituted respectively by a first jaw 13 and by a second jaw 14 which have, on the side opposite to the second surface and the fourth surface 10, 13, respectively a fifth surface 15 and a sixth surface 16, which are shaped complementary to the first surface 9 and to the third surface 12.

The first and second jaws 13, 14 can move slidingly with respect to the first surface 9 and to the third surface 12 by means of third screws 17, the activation of which, thanks to the presence of the inclined planes on which the first and fifth surfaces 9, 15 and the third and fourth surfaces 12, 16 lie, allows a movement of the free ends 18, 19 of the first and second jaws in the direction of the facing second and fourth surfaces 10, 13 of the part 2.

Such free ends 18, 19 can be smooth or can have a desired knurling. Moreover, the surface of the free ends 18, 19 that is directed toward the part 2 can be arc-like, as shown in Figures 5 and 9, or flat, as shown in Figures 6 and 10.

The vise 1 furthermore has a second pusher assembly with inclined jaws for lifting the part 2, which is constituted by at least one piston 20 which is associated slidingly at an adapted first seat 21 provided at right angles to the first wing 4 of the footing 3 in a region that is adjacent to, but in front of, the first and second jaws 13, 14.

At the lower end of the piston 20 that is accommodated within the first wing 4 there is a first diametrical hole 22 and, on planes which are mutually opposite and perpendicular with respect to the axis of the first diametrical hole, there is a pair of seventh surfaces 23a, 23b arranged at an angle with such an inclination as to both converge in the direction of the base plate 6.

The second pusher assembly is furthermore constituted by a third jaw 24 and a fourth jaw 25, which are shaped like a cylindrical sleeve, are axially perforated and operate at adapted second seats 26a, 26b provided along the same axis as the first diametrical hole 22.

The third and fourth jaws 24, 25 each have an eighth surface 27a, 27b having the same inclination as the seventh surfaces 23a, 23b.

The third and fourth jaws 24, 25 are interconnected by means of a third screw 28, the head 29 of which is associated rotatably at the third jaw 24 and the threaded stem 30 of which interacts with a complementarily shaped thread provided axially to the fourth jaw 25.

The function of the third screw 28 is to force or not to force the lifting of the pistons 20 and therefore vary the position of their end 31 with respect to the plane of arrangement of the upper surface 32, which is smooth or corrugated, of the first wing 4 of the footing 3.

In practice it has been found that the invention has achieved the aim and objects mentioned above, a vise having been obtained which makes it possible to obtain quickly and easily various configurations of the position of the part to be worked, at the same time allowing optimum fixing of the parts even if they have different shapes and dimensions.

The invention furthermore makes it possible to adjust quickly, easily and precisely the position of the part to be worked and to achieve an optimum planar shape of the part to be worked.

Finally, the invention allows the optimum adjustment of the position of the part to be worked, regardless of whether it has an irregular or a smooth surface.

The materials used, as well as the dimensions that constitute the individual components of the invention, may of course be more pertinent to the specific requirements.

The various means for performing certain different functions need not certainly coexist only in the illustrated embodiment but can be present per se in many embodiments, including embodiments that are not illustrated.

The characteristics indicated as advantageous, convenient or the like may also be omitted or be replaced with equivalents.

The disclosures in Italian Patent Application No. TV2012A000210 from which this application claims priority are incorporated herein by reference.

Where technical features mentioned in any claim are followed by reference signs, those reference signs have been included for the sole purpose of increasing the intelligibility of the claims and accordingly such reference signs do not have any limiting effect on the interpretation of each element identified by way of example by such reference signs.