DE3505563A1 - SLIDING GUIDE - Google Patents

Description

HEPCO SLIDE SYSTEMS LIMITED, 1 AINTREE ROAD, GREENFORD, MIDDLESEX. UB6. 7LA., ENGLAND

Sliding guide device

The invention relates to a sliding guide device and in particular to a raw element therefor, to a method for producing the raw element and the Gleitführungsuorrichtung and on a system for Use of the Gleitführungsuorrichtung.

Slide guide systems such as linearly movable machine slide guide devices which a linear precision movement is to be provided for e.g. a printing press or machine tools are known. However, they have a tendency to corrode especially in the environment in which they are intended to work, and this can lead to inaccuracies in its movement or in the movement of the machine, its control they are supposed to contribute, which means that they often need to be replaced. This is both with regard to the replacement parts and costly in terms of machine downtime. This tendency also means that the Sliding guide elements not general, for example

Asamstrasse 8, D-8000 Munich 90 Telephone (089) 653665; Fax (089) 653218 Telex: 5214168 soza d

Patent attorney Dr. Ing. Dipl.-Ing. A SoIf (Munich) Patent attorney Dipl.-Ing. Chr. Zapf (Wuppertal)

in the food industry or in the high-precision photographer he industry can be used where hygiene is essential.

The invention is based on these disadvantages to fix.

This problem is solved by the teaching of claims 1, 2, 7 and 11. Advantageous further training of the Invention are characterized by the subclaims.

According to one aspect of the invention, a raw element made of stainless steel for a sliding guide device created which, in use, has a part which cooperates with a bearing, the part being hardenable and at least some of the remainder is relatively uncurable.

According to a second aspect of the invention is a raw element Made of stainless steel for the manufacture of a sliding guide device having a Has body and a part which, in use, cooperates with a bearing, the raw element having a hardenable stainless steel for forming the part and a stainless steel that is relatively non-hardenable for Has formation of the body and the two steels are fastened together.

The hardenable and relatively non-hardenable parts or steels can be integrally fused by electron beam welding be.

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The hardenable and relatively / non-hardenable parts or Steels can be fused or fused together by a laser.

The composition of the hardenable part or steel can be on a weight percent basis 0.95-1.20C, about 1.0 Si, about 1.0 Mn, 16-18 Cr, about 0.75 Mo, about 0.03 S, and about 0.04 P. and the composition of the relative / uncurable part or steel may contain 0.09-0.15 C, 0.00-1.0 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 relative / unhardenable stainless steel can preferably be 0.12 Min C, 1.0 Max Si, 1.00 Mn, Includes 1.00 Ni, 12-14 Cr, 0.045 Max S, and 0.045 P.

The raw element can be an essentially flat raw element and the part can have a side edge or a side edge. Be the narrow side of this part.

Two parts can be provided, the corresponding one Include side surfaces of the raw element.

The raw element can be a curved, essentially comprise planar raw element, wherein the part is a side surface of the raw element.

Two parts can be provided which comprise the corresponding side surfaces of the raw element.

The raw element can be a toroidal or cylindrical

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cal raw element include and the part can be a radial be directed flange extending around its periphery.

The flange can point to the center of the toroid or cylinder be directed.

According to a third aspect of the invention, a slider or a sliding guide device made of stainless steel created,] Ü made of a raw element according to those described above Raw elements is made, the part is hardened and at least part of the remainder is unhardened is.

The or each part may taper into a V-shape.

The point angle of the "V" can be 90 °.

The or each part can have a hardness in the range of 58-60 Own Rockwell "C".

The remainder or body may have a device for attaching the sliding guide device to a carrier, Include support or platen.

The fastening device can have one or more through holes.

3Ü According to a fourth aspect of the invention is a method for the production of a raw element made of stainless steel for a sliding guide device

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create which, in use, has a part that cooperates with a bearing, the method which Steps include providing two stainless steels of different composition one of which is hardenable and one relatively non-hardenable that the two steels are held together and their neighboring edges or marginal areas are united or melted in such a way that they merge, that the fused metal is solidified, that the raw element is raw to the required general shape is shaped and that then the roughly shaped raw element is subjected to a hardening process under vacuum, in which only the part is hardened.

The method may include the steps of removing the blank from the vacuum curing oven, and that the raw element is then ground and / or over substantially its entire surface area is polished to a smooth finished sliding guide device to accomplish.

According to a fifth aspect of the invention is a sliding guide system created that a sliding guide device made of stainless steel as described above or by a method described above is, and comprises a number of bearings in a slide or carriage, the sliding guide device and the carriage are relatively reciprocable, with the bearings or support assemblies on the or each hardened narrow side or each flange of the sliding guide device or the sliding piece support.

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The invention is explained below with the aid of an inventive Slide guide device and the drawing, for example explained in more detail; show in the drawing:

^c j Fig. 1 is a plan view of a sliding piece according to the invention made of stainless steel,

Figure 2 is an end view of the slider shown in Figure 1, and
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Fig. 3, on a larger scale, is an exploded isometric view of a sliding guide system in which a Slider according to Fig. 1 or 2 is installed.

1'; The slide (slide) shown in the drawing 1 is generally rectangular and planar and has opposite longitudinal narrow sides or parts 2, which are made of a hardenable, stainless steel, and a body or remainder 3 made of a relatively unhardenable or soft stainless steel is. The entire slide 1 is precision ground and corrosion resistant. The narrow sides 2 are U-shaped, as shown in FIG. 2. The inclined Form surfaces 4 of the V-shaped side surfaces in the embodiment shown an angle of 90 ° together. The precision grinding provides a parallelism of 0.013mm per meter over the V-shaped Narrow sides 4 and a similar tolerance with regard to straightness can be achieved by the Slider 1 on a precision ground surface is attached, for example on a back or support plate la made of stainless steel or aluminum,

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on which the slider 1 by means of a suitable fastening device, such as is fastened by means of screws or bolts, which are fastened by a fastening device of the slider 1 are inserted in the form of through holes 6 which are easily shaped, e.g. by drilling them through the body 3. Four such holes 6 are shown.

The narrow sides 2 are formed from a stainless steel that has been hardened up to 58 Rockwell "C". In the exemplary embodiment shown, the stainless steel for the narrow sides 2 is known as 440C (AISI) Steel, which has the composition (in percent by weight) 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 body or part 3 stainless steel is that as EN56A known steel, which has the composition (in percent by weight) 0.12 Max C, 1.0 Max Si, 1.00 Mn, 1.00 Ni, 12-14 Cr, 0.045 S and 0.045 P. 20th

The slide 1 shown in Figs. 1 and 2 is used in a system 7 (Fig. 3) in which four angled (V-shaped) contact bearings 8 made of stainless steel guide the slider 1, its narrow sides or edges 2 pass through the V-shaped column 9 in the contact bearings 8, each of the two bearing parts 10 and 11 so that they form a V-shaped gap 9 when arranged one above the other. The bearings 8 are sealed and lubricated to provide a high level of protection.

The bearings 8 are of concentric 12 or eccentric

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13 tenons or bolts carried, the latter of which over the former 12 are attached to provide a simple yet effective way of adjustment of free play in system 7. Because the scope of the bearing parts on the larger diameter is larger than the smaller diameter, a constant wiping or lubricating effect is also generated when the Slider 1 and the bearings 8 act on one another during the movement of one relative to the other.

The sliding guide device 1 made of stainless steel is made from a raw element, which itself thereby has been made that two strips of hardenable stainless steel for the narrow sides 2 of the Slider 1 and a relatively non-hardenable stainless steel for the body or remaining part 3 of the slider 1 and roughly machined the surfaces that are adjacent to each other are or are in contact with each other. This upper 0 surfaces are then held towards each other and the steels are clamped or clamped together. the tensioned or erect / raised steels are then placed in a vacuum chamber and an electron beam welding head is then placed along the joint the abutting edges passed. The beam is 1 electron thick and fuses the neighboring edges or narrow sides of the two steels essentially instantaneous through and through theirs Thickness, the steels effectively fusing to form an integral composite assembly upon solidification to accomplish. Very little heat is diffused; the heat is due to the relatively large mass of the steels

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rapidly dispersed that are not exposed to the electron beam. Therefore, no shape change or deformation occurs of the metal.

The composite arrangement is then derived from the Vacuum chamber removed, machined roughly flat, and holes 6 of V-edge 4 are formed. Then the raw element or the blank is placed in a vacuum furnace around the narrow sides 2 to harden. Again, no deformation occurs because the composite unit is inherently strong. As soon as the narrow sides 2 have hardened, the raw element is removed from the furnace and finished, i.e. it is sanded or polished everywhere to ensure the glide piece 1 to form. This grinding smooths the slider, although it can be additionally polished if this is necessary or desired. The hardening process only causes hardening of the narrow side parts or strips 2 which, in addition to being hardened, are merely hardened and polished Condition are corrosion-free. The steel for the body or the remaining part 3, which remains uncured, remains soft and corrosion-free. Both stainless steels are of the martensitic kind.

The power required for the electron beam head is 6 kW and the blank can be 1200 mm long.

The invention described above can be modified. For example, only one narrow side 2 be made of hardenable stainless steel. The slider 1 can also be curved, bent, toroidal or

be cylindrical instead of straight; the part 2 which is hardened is then a flange if the slider is toroidal or circular. The formation of the composite blank can also be carried out
by using a laser or plasma technique for welding.

Claims (11)

Expectations Steel raw element for a sliding guide device, which, when in use, has a part that interacts with a bearing, thereby gekenn draws that the steel is a stainless Steel is that part (2) is hardenable and that at least part (3) of the remainder is relatively unhardenable is. 2. Raw stainless steel element for making a sliding guide device with a body and a part which, in use, cooperates with a bearing, characterized that the raw element is a hardenable stainless steel to form the part (2) and a stainless steel which is relatively unhardenable for forming the body (3), wherein the both steels are fastened together. 3. Raw stainless steel element according to claim 1 or 2, characterized in that the hardenable and relatively non-hardenable parts or Steels preferably by electron beam welding or by laser welding technology integrally with Asamstrasse 8, D-8000 Munich 90 Telephone (089) 653665; Fax (089) 653218 Telex: 5214168 sozad Patent attorney Dr. Ing. Dipl.-Ing. A. SoIf (Munich) Patent attorney Dipl.-Ing. Chr. Zapf (Wuppertal) are merged with each other. 4. Raw element made of stainless steel according to one of claims 1 to 3, characterized in that that the composition of the hardenable part (2) or steel on a weight percent basis 0.95-1.20 C, about 1.0 Si, about 1.0 Mn, 16-18 Cr, about 0.75 Mo, about 0.03 S and about 0.04 P and that the composition of the relatively uncurable part (3) or steel 0.09 to 0.15 C, 0.80-1.0 Si, approximately 1.00 Mn, about 1.0 Ni, 11.00-14 Cr, 0.030-0.045 S, and 0.040-0.045 P. 5. Raw element made of stainless steel according to one of the Claims 1 to 4, characterized in that the composition of the relatively unhardenable stainless part (3) or steel 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. 6. Raw element made of stainless steel according to one of claims 1 to 5, g e k e η η ζ e i c h η e t by a rectangular, essentially 5 planar raw element (l), in which the part (2) has a side edge, preferably the respective side edges, of the Raw element is. 7. Gleitführungsvor direction, characterized by g e, that they are made of a raw element according to any preceding claim made of rust- BATH ORIGINAL free steel is that part (2) is hardened and at least part (3) of the remainder is unhardened is. 8. Sliding guide device made of stainless steel according to Claim 7, characterized in that the or each part (2) becomes one V-formation tapers, the apex angle of the V is preferably 90 °. 9. A device made of stainless steel according to claim 7 or 8, characterized in that that the or each part (2) has a hardness in the range 58-60 Rockwell "C". β 10. Stainless steel sliding guide device "' according to one of claims 7 to 9, characterized in that the remainder or body (3) has a device (6) for fastening of the slider (1) on a support plate. 11. A method for producing a raw element made of stainless steel for a sliding guide device, which, when used, has a part that interacts with a bearing, marked by the steps that two stainless steels with different composition are provided, of which one is hardenable and the other is relatively non-hardenable, that the two steels held together and their adjacent side faces are fused locally under vacuum so that they merge into one another so that the BAD OR | G | _NAL molten metal is solidified that so formed raw element (1) is shaped raw in the required general arrangement and that the raw Shaped raw element (1) is then subjected to a hardening process under vacuum, whereby only the part is hardened.