GB2154672A - A linearly movable machine slide - Google Patents
A linearly movable machine slide Download PDFInfo
- Publication number
- GB2154672A GB2154672A GB08503199A GB8503199A GB2154672A GB 2154672 A GB2154672 A GB 2154672A GB 08503199 A GB08503199 A GB 08503199A GB 8503199 A GB8503199 A GB 8503199A GB 2154672 A GB2154672 A GB 2154672A
- Authority
- GB
- United Kingdom
- Prior art keywords
- stainless steel
- blank
- slide
- relatively
- unhardenable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C29/00—Bearings for parts moving only linearly
- F16C29/04—Ball or roller bearings
- F16C29/045—Ball or roller bearings having rolling elements journaled in one of the moving parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/25—Movable or adjustable work or tool supports
- B23Q1/26—Movable or adjustable work or tool supports characterised by constructional features relating to the co-operation of relatively movable members; Means for preventing relative movement of such members
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/01—Layered products comprising a layer of metal all layers being exclusively metallic
- B32B15/011—Layered products comprising a layer of metal all layers being exclusively metallic all layers being formed of iron alloys or steels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/02—Iron or ferrous alloys
- B23K2103/04—Steel or steel alloys
- B23K2103/05—Stainless steel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2322/00—Apparatus used in shaping articles
- F16C2322/39—General build up of machine tools, e.g. spindles, slides, actuators
Abstract
A slide 1 is generally rectangular and planar and has opposed longitudinal edges or parts 2 which are made from one, hardenable, stainless steel, and a body or remaining part 3 made from a relatively unhardenable, or soft, stainless steel. The whole slide 1 is precision ground and is corrosion resistant. The edges 2 are of V-shape the inclined surfaces 4 of the Vees being at 90 DEG . The precision grinding provides a parallelism of 0.013 mm per metre across the V-edges 4. The edges 2 are formed of a stainless steel hardened up to 58 Rockwell "C". The stainless steel for the edges 2 has the composition (by wt%) 0.95-1.20 C, 1.0 Si, 1.0 Mn, 16-18 Cr, 0.75 Mo, 0.030S and 0.040 P. The soft stainless steel of the body or part 3 has the composition (by wt%) 0.12 Max C, 1.0 Max Si, Mn 1.00, 1.00 Ni, 12-14 Cr, 0.045S and 0.045 P. Through holes 6 provide means to mount the slide on a back or support plate. <IMAGE>
Description
SPECIFICATION
Slide
The invention relates to a slide and particularly to a blank therefor, a method of making the blank and the slide, and system using the slide.
Slide systems such as linearly movable machine slides where precision linear motion is to be provided for say printing equipment or machine tools are known but they have a tendency to corrode particularly in the environment in which they have to operate, and this can lead to inaccuracies in their motion or that of the machine they help to control which means that they often have to be replaced, which is expensive both on replacement parts and on "down" time of the machine . This tendency also means that slides cannot generally be used in the food or high precision photographic industries for example, where hygiene is essential.
It is accordingly an object of the invention to seek to mitigate these disadvantages.
According to one aspect of the invention there is provided a stainless steel blank for a slide which in use has a part which cooperates with a bearing, wherein the part is hardenable and at least part of the remainder is relatively unhardenable.
According to a second aspect of the invention there is provided a stainless steel blank for making a slide having a body and a part which in use cooperates with a bearing, the blank comprising a hardenable stainless steel for forming the part and a stainless steel which is relatively unhardenable for forming the body, the two steels being secured together.
The hardenable and relatively unhardenable parts or steels may be integrally fused together by electron beam welding.
The hardenable and relatively unhardenable parts or steels may be integrally fused together by a laser.
The composition of the hardenable part or steel may comprise on a wt percentage basis 0.95-1.20 C, about 1.0 Si, about 1.0 Mn, 16-18 Cr, about 0.75 Mo, about 0.03S and about 0.04P, and the composition of the relatively unhardenable part or steel may comprise 0.09-0.15 C, 0.080-1.0 Si, about 1.00 Mn, about 1.0 Ni, 11.00-14 Cr, 0.030-0.045S, and 0.040-0.045 P.
The composition of the relatively unhardenable stainless steel may preferably comprise 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 blank may be a substantially planar blank and the part may be a lateral edge thereof.
There may be two parts comprising respective lateral edges of the blank.
The blank may comprise a curved substantially planar blank with the part being a lateral edge-thereof.
There may be two parts comprising respective lateral edges of the blank.
The blank may comprise a toroidal or cylindrical blank and the part may be radially directed flange which extends around the circumference thereof.
The flange may be directed towards the centre of the toroid or cylinder.
According to a third aspect of the invention there is provided a stainless steel slide whenever made from a blank as hereinbefore defined the part being hardened and at least part of the remainder being unhardened.
The or each part may taper to a V-formation.
The apex of the "V" may be 90".
The or each part may have a hardness in the range 58-60 Rockwell "C".
The remainder or body may include means for securing the slide to a backing plate.
The securing means may comprise one or more through holes.
According to a fourth aspect of the invention there is provided a method of making a stainless steel blank for a slide which in use has a part which cooperates with a bearing, comprising the steps of providing two stainless steels of different composition one of which is hardenable and one of which is relatively unhardenable, holding the two steels together and fusing under vacuum their adjacent edges locally so that they merge, solidifying the fused metal, rough forming the blank to the required general configuration, and then subjecting the rough formed blank to a hardening process under vacuum whereby only the part is hardened.
The method may include the steps removing the blank from the vacuum hardening furnace, and then grinding the blank over substantially the whole of its surface area to provide a smooth finished slide.
According to a fifth aspect the invention provides a slide system comprising a stainless steel slide as hereinbefore defined or made by a method as hereinbefore defined, and a plurality of bearings in a carriage, the slide and carriage being relatively reciprocable with the bearings bearing on the or each hardened edge or flange of the slide.
A slide embodying the invention is diagrammatically illustrated by way of example, with reference to the accompanying drawings.
BRIEF DESCRIPTION OF DRAWINGS
Figure 1 is a plan view of a stainless steel slide according to the invention;
Figure 2 is an end elevation of the slide of
Fig. 1; and
Figure 3 is an exploded isometric view of a slide system incorporating a slide according to
Fig. 1 or Fig. 2 and to a larger scale than those Figs.
Referring to the drawings the slide 1 shown is generally rectangular and planar and has opposed longitudinal edges or parts 2 which are made from one, hardenable, stainless steel, and a body or remaining part 3 made from a relatively unhardenable, or soft, stainless steel. The whole slide 1 is precision ground and is corrosion resistant. The edges 2 are of V-shape, as shown in Fig. 2, and the inclined surfaces 4 of the Vees are at 90 , in the embodiment shown.The precision grinding provides a parallelism of 0.013 mm per metre across the V-edges 4 and a similar tolerance can be achieved for straightness by accurately mounting the slide 1 onto a precision ground surface, for example of a stainless steel or aluminium back or support plate 1 a to which the slide 1 is secured suitable securing means such as screws or bolts being passed through securing means of the slide 1 in the form of through holes 6 which are easily formed as by being drilled through the body 3. There are four such holes 6 shown.
The edges 2 are formed of a stainless steel hardened upto 58 Rockwell "C". In the embodiment shown, the stainless steel for the edges 2 is that known as 440C (AISI) which has the composition (by wt%) 0.95-1.20 C, 1.0 Si, 1.0 Mn, 16-18 Cr, 0.75 Mo, 0.030S and 0.040 P. The soft stainless steel of the body or part 3 is that known as EN56A which has the composition (by wt%) 0.12 Max C, 1.0 Max Si, Mn 1.00, 1.00 Ni, 12-14 Cr, 0.045S and 0.045 P.
The slide 1 shown in Figs. 1 and 2 is used in a system 7 (Fig. 3) in which four stainless steel angular (V -) contact bearings guide 8 for the slide 1, the edges 2 thereof passing through the V-gaps 9 in the contact bearings, which each comprise two bearing parts 10 and 11 so that when superposed, the V-gap 9 is formed. The bearings 8 are sealed and lubricated to provide a high degree of-protection.
The bearings 8 are carried by concentric 12 or concentric 13 studs, the latter being mounted opposite the former 12 to provide a simple yet effective way of adjusting free play in the system 7. Further, as the circumference of the bearing parts is greater at the major diameter than the minor diameter, a constant wiping action is produced as the slide 1 and bearings 8 interact on movement of one relative to the other.
The stainless steel slide 1 is made from a blank which is itself made by taking two strips of hardenable stainless steel for the edges 2 of the slide 1 and a relatively unhardenable stainless steel for the body or remaining part 3 of the slide 1 and roughly machining the surfaces which are to be adjacent or in contact. Those surfaces are then offered up to one another and the steels are clamped together. The set up steels are then placed in a vacuum chamber and an electron beam welding head is then passed along the junction of the abutting edges. The beam 1 is electron thick and it fuses the adjacent edges of the two steels right through the thickness thereof virtually instantaneously, the steels effectively merging to provide an integral composite structure on solidification.There is very little heat spread, the heat being rapidly dissipated through the relatively large mass of the steels which are not subject to the electron beam.
Thus there is no distortion of the metal.
The composite structure is then removed from the vacuum chamber, is rough machined flat and the holes 6 the V-edge 4 are formed, then the blank is placed in a vacuum furnace to harden the edges 2. Again, there is no distortion as the composite unit is inherently strong. Once the edges 2 are hardened, the blank is removed from the furnace and finished, in other words precision ground all over to form the slide 1. This grinding polishes the slide, though additional polishing can be effected if necessary or desired. The hardening process only effects the edge parts or strips 2, which in addition to being hardened will only be corrosion free in the hardened and polished state. The steel for the body or remaining part 3 while remaining unhardened 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 above described can be modified. For example, only one edge 2 may be hardenable stainless steel. Also, the slide 1 may be curved, or toroidal or cylindrical rather than straight, the part 2 which is hardened then being a flange when the slide is toroidal or circular. Also, the formation of the composite blank may be carried out using a laser or plasma technique of welding.
Claims (24)
1. A stainless steel blank for a slide which in use has a part which cooperates with a bearing, wherein the part is hardenable and at least part of the remainder is relatively unhardenable.
2. A stainless steel blank for making a slide having a body and a part which in use cooperates with a bearing, the blank comprising a hardenable stainless steel for forming the part and a stainless steel which is relatively unhardenable for forming the body, the two steels being secured together.
3. A stainless steel blank according to
Claim 1 or Claim 2, the hardenable and relatively unhardenable parts or steels being integrally fused together by electron beam welding.
4. A stainless steel blank according to
Claim 1 or Claim 2, the hardenable and relatively unhardenable parts or steels being integrally fused together by a laser.
5. A stainless steel blank according to
Claim 3 or Claim 4, the composition of the hardenable part or steel comprising on a wt percentage basis 0.95-1.20 C, about 1.0 Si, about 1.0 Mn, 16-18 Cr, about 0.75 Mo, about 0.03S and about 0.04 P, the composition of the relatively unhardenable part or steel comprising 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.
6. A stainless steel blank according to
Claim 5, the composition of the relatively unhardenable stainless steel comprising 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.
7. A stainless steel blank according to any preceding claim, comprising a reactanglar substantially planar blank with the part being a lateral edge thereof.
8. A stainless steel blank according to
Claim 7, in which there are two parts comprising respective lateral edges of the blank.
9. A stainless steel blank according to any of Claims 1 to 6, comprising a curved substantially planar blank with the part being a lateral edge thereof.
10. A stainless steel blank according to
Claim 9, in which there are two parts comprising respective lateral edges of the blank.
11. A stainless steel blank according to any of Claims 1 to 6, comprising a toroidal or cylindrical blank with the part being a radially directed flange which extends around the circumference thereof.
12. A stainless steel blank according to
Claim 11, the flange being directed towards the centre of the toroid or cylinder.
13. A stainless steel blank, substantially as hereinbefore described with reference to the accompanying drawings.
14. A stainless steel slide whenever made from a blank according to any preceding claim, the part being hardened and at least part of the remainder being unhardened.
15. A stainless steel slide according to
Claim 14, the or each part tapering to a Vformation.
16. A stainless steel slide according to
Claim 15, the apex of the V being 90 .
17. A stainless steel slide according to any of Claims 14 to 16, the or each part having a hardness in the range 58-60
Rockwell "C".
18. A stainless steel slide according to any of Claims 14 to 17, the remainder or body including means for securing the slide to a backing plate.
19. A stainless steel slide according to
Claim 18, the securing means comprising one or more through holes.
20. A stainless steel slide, substantially as hereinbefore described with reference to the accompanying drawings.
21. A method of making a stainless steel blank for a slide which in use has a part which cooperates with a bearing, comprising the steps of providing two stainless steels of different composition one of which is hardenable and one of which is relatively unhardenable, holding the two steels together and fusing under vacuum their adjacent edges locally so that they merge, solidifying the fused metal, rough forming the blank to the required general configuration, and then subjecting the rough formed blank to a hardening process under vacuum thereby only the part is hardened.
22. A method of making a stainless steel slide comprising making a blank according to the method of Claim 21, removing the blank from the vacuum hardening furnace, and then grinding the blank over substantially the whole of its surface area to provide a smooth finished slide.
23. A slide system, comprising a stainless steel slide according to any one of Claims 14 to 21 or made by a method according to
Claim 22, and a carriage being relatively reciprocable with the bearings bearing on the or each hardened edge or flange of the slide.
24. A slide system, substantially as hereinbefore described with reference to Fig. 3.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB848404448A GB8404448D0 (en) | 1984-02-20 | 1984-02-20 | Slide |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB8503199D0 GB8503199D0 (en) | 1985-03-13 |
| GB2154672A true GB2154672A (en) | 1985-09-11 |
| GB2154672B GB2154672B (en) | 1987-07-15 |
Family
ID=10556899
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB848404448A Pending GB8404448D0 (en) | 1984-02-20 | 1984-02-20 | Slide |
| GB08503199A Expired GB2154672B (en) | 1984-02-20 | 1985-02-08 | A linearly movable machine slide |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB848404448A Pending GB8404448D0 (en) | 1984-02-20 | 1984-02-20 | Slide |
Country Status (8)
| Country | Link |
|---|---|
| JP (1) | JPS60211013A (en) |
| CH (1) | CH668571A5 (en) |
| DE (1) | DE3505563A1 (en) |
| FR (1) | FR2559698B1 (en) |
| GB (2) | GB8404448D0 (en) |
| IT (1) | IT1182201B (en) |
| NL (1) | NL8500345A (en) |
| SE (1) | SE8500664L (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106826366A (en) * | 2017-02-28 | 2017-06-13 | 深圳福美信自动化工程有限公司 | Rail mounted frock coaster and the circulating production line being made up of it |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8707244D0 (en) * | 1987-03-26 | 1987-04-29 | Hepco Slide Systems Ltd | Slide systems |
| JPS63293319A (en) * | 1987-05-25 | 1988-11-30 | Hiroshi Teramachi | Bearing used concurrently for straight line and curve |
| JPH03207816A (en) * | 1990-01-10 | 1991-09-11 | Aichi Mach Ind Co Ltd | Pulley for continuously variable transmission |
| DE19517926A1 (en) * | 1995-05-16 | 1996-11-21 | Schaeffler Waelzlager Kg | Linear roller bearing using fixer screws |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE228679C (en) * | ||||
| US206648A (en) * | 1878-07-30 | Improvement in cross-heads and other slides | ||
| US3353874A (en) * | 1965-05-18 | 1967-11-21 | Grant Pulley & Hardware Corp | Extensible slide mechanism |
| US3661431A (en) * | 1970-08-24 | 1972-05-09 | Bishop Wisecarver Corp | Guide wheels and tracks |
| JPS52100322A (en) * | 1976-02-19 | 1977-08-23 | Daido Steel Co Ltd | Production of pieces hardened partially |
-
1984
- 1984-02-20 GB GB848404448A patent/GB8404448D0/en active Pending
-
1985
- 1985-02-07 NL NL8500345A patent/NL8500345A/en not_active Application Discontinuation
- 1985-02-08 GB GB08503199A patent/GB2154672B/en not_active Expired
- 1985-02-13 SE SE8500664A patent/SE8500664L/en not_active Application Discontinuation
- 1985-02-14 CH CH684/85A patent/CH668571A5/en not_active IP Right Cessation
- 1985-02-15 IT IT47688/85A patent/IT1182201B/en active
- 1985-02-18 DE DE19853505563 patent/DE3505563A1/en not_active Ceased
- 1985-02-19 FR FR8502535A patent/FR2559698B1/en not_active Expired
- 1985-02-20 JP JP60033648A patent/JPS60211013A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106826366A (en) * | 2017-02-28 | 2017-06-13 | 深圳福美信自动化工程有限公司 | Rail mounted frock coaster and the circulating production line being made up of it |
| CN106826366B (en) * | 2017-02-28 | 2019-01-29 | 深圳福美信自动化工程有限公司 | Rail mounted tooling coaster and the circulating production line being made of it |
Also Published As
| Publication number | Publication date |
|---|---|
| IT8547688A1 (en) | 1986-08-15 |
| DE3505563A1 (en) | 1985-09-19 |
| GB8404448D0 (en) | 1984-03-28 |
| GB2154672B (en) | 1987-07-15 |
| SE8500664L (en) | 1985-08-21 |
| FR2559698A1 (en) | 1985-08-23 |
| FR2559698B1 (en) | 1988-10-28 |
| CH668571A5 (en) | 1989-01-13 |
| IT1182201B (en) | 1987-09-30 |
| NL8500345A (en) | 1985-09-16 |
| GB8503199D0 (en) | 1985-03-13 |
| IT8547688A0 (en) | 1985-02-15 |
| SE8500664D0 (en) | 1985-02-13 |
| JPS60211013A (en) | 1985-10-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19960208 |