FR2559698A1 - SLIDE SOLE, METHOD FOR MANUFACTURING THE SOLE AND SLIDE, AND SYSTEM FOR USING THE SOLE - Google Patents

Abstract

THE SLIDE 1 GENERALLY RECTANGULAR AND FLAT AND HAVING OPPOSED LONGITUDINAL EDGES, OR ELEMENTS 2 CONSTITUTED OF A STAINLESS STEEL CLEAN TO BE TEMPERED, AND A BODY OR REMAINING PART 3 CONSTITUTED BY STAINLESS STEEL CLEARLY, OR LOW TEMPERED. THE ENTIRE SLIDE IS CORRECTED WITH PRECISION AND CORROSION RESISTANCE. THE EDGES 2 ARE V-SHAPED, THE INCLINED SURFACES 4 OF THE V ARE 90. THE PRECISION GRINDING PROVIDES A PARALLELISM OF 0.013MM PER METER ALONG THE V-FLAPS 4. EDGES 2 ARE MADE OF HARDENED STAINLESS STEEL A 58 ROCKWELL "C". IN THE EXECUTION ILLUSTRATED, THE STAINLESS STEEL OF ARETES 2 IS THAT KNOWN UNDER REFERENCE 440C (AISI) WHOSE COMPOSITION (IN PERCENTAGEWEIGHT) IS 0.95-1.20C, 1.0SI, 1.0MN, 16 -18CR, 0.75MO, 0.030S AND 0.040P. THE SOFT STAINLESS STEEL OF THE BODY OR PART 3 IS THAT KNOWN BY THE REFERENCE EN56A WHOSE COMPOSITION IS (IN PERCENTAGEWEIGHT) 0.12 MAX C, 1.0 MAX SI, MN 1.00, 1.00 NI, 12-14 CR, 0.045P. THROUGH HOLES 6 PROVIDE MEANS OF MOUNTING THE SLIDE TO A SUPPORT OR SUPPORT PLATE. MACHINE-TOOL SLIDE.

Description

The present invention relates to a slide and more

  particular to its sole, to a method of manufacturing the

  sole and slide and to the sole use system.

  Sliding systems such as those of linear moving machines are known in which precision linear movement is necessary, for example for printing equipment or machine tools, but tend to be damaged, especially in the area where they have to operate. This can lead to inaccuracies in their movement or in that of the machine they are used to control and is expensive to spare parts as well as idle time of the machine. This trend also means that slides can not generally be used in high-precision food or photographic industries where hygiene is essential. It is therefore one of the objects of the invention to reduce these disadvantages. According to one aspect of the invention, there is provided a stainless steel soleplate for a slide, which in operation, has a co-operating element with a bearing, said element being able to be quenched and at least a part of the remainder can not practically not at all. According to a second aspect of the invention, there is provided a stainless steel soleplate for manufacturing a slide comprising a body and an element which, in operation, cooperate with a bearing, the slide being made of a stainless steel suitable for being soaked for the formation of the element and of a relatively unfit stainless steel to be quenched for the formation of the body, the two steels

subject to each other.

  Elements or steels that can be soaked and those that

  not being able to be fully melted by a bombardment weld-

electronic payment.

  The composition of an element or steel capable of being quenched may be, on a percentage / weight basis, 0.95-1.20 C, about 1.0 Si, about 1.0 Mn 16-18 Cr, about 0, 75 MB, about 0.03 S and about 0.04 P, and the composition of the element or steel relatively unfit for soaking can be 0.09-0.15 C, 0.80-1.0 Si, about 1.00 Mn, about 1.0 Ni, 11.00-14 Cr, 0.030-0.045 S and 0.040-0.045 P. The composition of the relatively unfit stainless steel to be quenched will preferably be 0.12 min C, 1.0 Max Si, 1.00 Mn, 1.00 Ni, 12-14 Cr, 0.045 max S, and 0.045 P. The soleplate may be substantially flat and the element may be

to be a lateral edge.

  There may be two elements corresponding to the respective lateral edges of the sole. The sole may be a substantially flat curved sole,

  the element being a lateral edge.

  There can be two elements corresponding to the lateral edges

of the sole.

  The sole can be toroidal or cylindrical and the element one

  radial flange extending all around its circumference.

  The flange can be oriented towards the center of the torus or cylinder.

  According to a third aspect of the invention, there is provided a stainless steel slide made from a sole as defined above, the element being soaked and at least part of the remainder

not being.

  The element or each element can be tapered into a V shape.

The angle of the V can be 90 '.

  The element or each element may have a hardness of the order of 5860 Rockwell "C. The remaining part or body may comprise fixing means

  from the slide to a support plate.

  The fastening means may comprise one or more through holes. According to a fourth aspect of the invention, there is provided a method of manufacturing a stainless steel soleplate for a slideway which, during operation, has an element cooperating with a bearing, said method consisting in setting up two stainless steels. of different composition, one of them being suitable for being soaked and the other being practically nonexistent, to hold together the two steels, and to vacuum melt their adjacent spiders, locally so that they amalgamating, solidifying the molten metal, coarsely producing a sole in accordance with the required general configuration, and then subjecting the coarsely obtained sole to a vacuum soaking process in which only the element

is soaked.

  The method may include removing the sole from the vacuum soaking oven and then rectifying the soleplate over most of its surface to provide a slideway.

smooth finish.

  According to a fifth aspect of the invention, there is provided a slider system comprising a stainless steel slider as defined above or manufactured according to the method described above, and several bearings in a frame, the slider and the frame having a relative back-and-forth movement, bearings resting on the edge or flange or on each of the edges or flanges

soaked from the slide.

  The accompanying drawing, given by way of example, will provide a better understanding of the invention, the characteristics it has and the advantages it is likely to provide:

  Fig. i is a plan view of a stainless steel slideway

  established in accordance with the invention.

  Fig. 2 is an elevational view of the slide shown

in fig. 1.

  Fig. 3 is an exploded perspective view of a slide system comprising a slide according to FIGS. 1 or 2 but at

larger scale.

  According to the drawing, the slide 1 shown is generally rectangular and flat and comprises two opposing longitudinal edges or elements 2 made of a clean stainless steel to be quenched and a body or remaining portion 3 made of a stainless steel relatively unfit to be soaked, or soft. The entire slide 1 is fully ground with precision and resistant to corrosion. The edges 2 are V-shaped, as shown in FIG. 2 and the inclined surfaces 4 of V are at 90 in the embodiment illustrated. Precision grinding provides a parallelism of 0.013 mm per meter along the V-shaped flats 4, and a similar tolerance can be achieved in straightness by precisely mounting the slide 1 on a polished surface, for example that of a support plate. or support of the stainless steel or aluminum, to which the slide 1 is fixed by means of suitable fasteners, such as screws or bolts, which are introduced through the fastening means of the slide being in the form of holes through 6 which are easily

  made by drilling the body 3. Four of these holes 6 are illustrated.

  The ridges 2 consist of a stainless steel hardened to 58 Rockwell "C". In the illustrated embodiment, the stainless steel of the edges 2 is that known under the reference 440 C (AISI), whose composition (in percentage / weight) is 0.95-1.20 C, 1.0 Si , 1.0 Mn, 16-18 Cr, 0.75 Mo, 0.030 S and 0.040 P. The soft stainless steel of the body or remaining part 3 is that known under the reference EN56A, whose composition (in percentage / weight) is 0.12 Max C, 1.0 Max Si, Mn 1.00, 1.00 Ni, 12-14 Cr, 0.045 S and 0.045 P. The slide 1 shown in FIG. 1 and 2 is used in a system 7 (FIG 3) in which four angular contact bearings of stainless steel 8 guide the slide 1, its edges 2 passing through the grooves 9 V-shaped contact bearings which each comprise two support elements 10 and 11 whose superposition forms the V-shaped groove 9. The bearings 8 are secured and lubricated

  to obtain a high degree of protection.

  The bearings 8 are carried by concentric studs 12 or eccentric 13, the latter being mounted in opposition to the studs 12 to provide a simple but effective means of adjusting the clearance in the system 7. In addition, as the circumference of the elements of support is greater at maximum diameter than at minimum diameter, there is

  a constant sweeping action when slide 1 and rollers

  8 cooperate when moving from one to the other.

  The stainless steel slide 1 is made from a sole which is itself formed of two strips of stainless steel clean to be tempered for the edges 2 of the slide 1 and a stainless steel little clean to be soaked for the body or remaining portion 3 of the slide 1, the surfaces of said sole provided contiguous or in contact being roughly machined. These surfaces are then brought into contact and the steels pressed together. Thus positioned the steels are then placed in a vacuum chamber and an electronically bombarded welding head is moved along the junction of the contiguous ridges. The bombardment is one electron wide and fuses the adjacent arches of the two steels virtually instantaneously by its density, the steels effectively amalgamating to produce a composite structure after solidification. The heat propagation is very low, the heat being rapidly dissipated by the relatively large mass of steels that are not subjected to

  electron beam. There is no distortion of the metal.

  The composite structure is then removed from the vacuum chamber, is roughly machined flat and the holes 6 and the flats 4 V are made; the sole is then placed in a vacuum oven to soak the edges 2. Again, there is no distortion because the compound unit has an inherent hardness. Once the edges 2 are soaked, the sole is removed from the oven and finished, that is to say precision ground over its entire surface to form the slide 1. This grinding polishes the slide, although one

  can perform additional polishing if necessary or desired.

  The soaking process only concerns the edges or strips 2, which in addition to being quenched will be rid of any corrosion only in the quenched and polished state. The steel of the body or the remaining part 3, although not soaked, remains soft and not subject to corrosion. The two steels

  stainless are martensitic.

  The energy required for the welding head by electron bombardment

  It is 6 Kw and the sole can be 1200 mm long.

  The invention as described above can be modified. For example, only one of the ridges 2 can be stainless steel clean to be tempered. The slide 1 may also be curved, toroidal or cylindrical rather than rectilinear, the part 2 which is soaked then being a flange in the case of a toroidal or circular slide. Similarly, the composite sole can be made using a technique of

laser or plasma welding.

  It must also be understood that the foregoing description

  has been given only as an example and that it does not limit in any way the field of the invention of which we would not go out by replacing the

  Execution details described by all other equivalents.

RE VE N D I C A T I 0 N S

  A steel soleplate for a slideway which, in use, has an element which cooperates with a bearing, characterized in that the steel is a stainless steel, in that the element (2) can be quenched and in that the remaining part (3) is relatively clean

to be soaked.

  2. Sole made of stainless steel for producing a slideway comprising a body and an element which, in use, cooperates with a bearing, characterized in that the soleplate is made of a stainless steel capable of being tempered for the production of the element (2) and a stainless steel which can hardly be quenched for forming the body (3), the two steels being fixed together. 3. soleplate of stainless steel according to claim 1 or 2, characterized in that the parts or steels clean to be soaked and

  those that are not relatively are completely melted, preferably

  this by electron beam welding or by a technique of

laser welding.

  4. Sole made of stainless steel according to claim 3, characterized in that the composition of the element to be quenched (2), or steel, is on a percentage / weight basis, 0.95-1.20 C, approximately 1.0 Si, about 1.0 Mn, 16-18 Cr, about 0.75 Mo, about 0.03S and about

  0.04 P, and that the composition of the part, or relative steel,

  not very suitable for soaking (3) is 0.09-0.15 C, 0.80-1.0 Si, about 1.00 Mn, about 1.0 Ni, 11.00-14 Cr, 0.030-0.045 S, and

0.040-0.045 P.

  5. The sole of stainless steel according to claim 4, characterized

  characterized in that the composition of the relatively unfit or partially hardened stainless steel (3) is 0.12 Max C, 1.0 Max Si, 1.00 Mn, 1.00 Ni, 12-14 Cr, 0.45 Max s and 0.045 P.

  The stainless steel sole according to any of the claims

  cations, characterized by a substantial rectangular blank-

  plane (1), the element (2) being a lateral edge of said blank and

  preferably the respective lateral edges of said blank.

  7. Slide characterized in that it is a stainless steel slide (1) made from a sole according to one

  any of the preceding claims, wherein the element (2) is hardened

  and at least the remaining portion (3) is not.

  8. Slide in stainless steel according to claim 7, characterized in that one or each of the elements (2) ends in

  V-shape, the V-top preferably forming an angle of 90e.

  9. Slide in stainless steel according to claim 8, characterized in that one or each of the elements (2) has a

  Hardness of the order of 58-60 Rockwell "C".

  10. Stainless steel slide according to any one of

  claim 8 or 9, characterized in that the remaining part of the

  body (3) comprises means (6) for fixing the slideway 1 to a

support tray.

  11. A method of producing a stainless steel soleplate for a slideway which, in use, has an element cooperating with a bearing, characterized in that it consists in setting up two stainless steels of different composition, one being able to be quenched and the other being practically nonexistent, to hold these two steels together and to vacuum melt their side edges contiguous locally so that they amalgamate, to solidify the molten metal, to rough machining the sole (1) to form it according to the required general configuration, and then subject the sole (1) roughly made to a vacuum soaking process during

  of which only the element (2) is quenched.