GB2094206A - Machining of cylindrical surfaces by cutting and rolling - Google Patents

Machining of cylindrical surfaces by cutting and rolling Download PDF

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Publication number
GB2094206A
GB2094206A GB8107362A GB8107362A GB2094206A GB 2094206 A GB2094206 A GB 2094206A GB 8107362 A GB8107362 A GB 8107362A GB 8107362 A GB8107362 A GB 8107362A GB 2094206 A GB2094206 A GB 2094206A
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GB
United Kingdom
Prior art keywords
machining
toolholder
guides
cylindrical surfaces
tools
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
Application number
GB8107362A
Other versions
GB2094206B (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TRAKTORNOGO I SELSKOKHOZYAIST
Original Assignee
TRAKTORNOGO I SELSKOKHOZYAIST
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by TRAKTORNOGO I SELSKOKHOZYAIST filed Critical TRAKTORNOGO I SELSKOKHOZYAIST
Priority to GB8107362A priority Critical patent/GB2094206B/en
Publication of GB2094206A publication Critical patent/GB2094206A/en
Application granted granted Critical
Publication of GB2094206B publication Critical patent/GB2094206B/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B5/00—Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor
    • B23B5/08—Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor for turning axles, bars, rods, tubes, rolls, i.e. shaft-turning lathes, roll lathes; Centreless turning
    • B23B5/12—Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor for turning axles, bars, rods, tubes, rolls, i.e. shaft-turning lathes, roll lathes; Centreless turning for peeling bars or tubes by making use of cutting bits arranged around the workpiece
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B29/00—Holders for non-rotary cutting tools; Boring bars or boring heads; Accessories for tool holders
    • B23B29/04—Tool holders for a single cutting tool
    • B23B29/12—Special arrangements on tool holders
    • B23B29/16—Special arrangements on tool holders for supporting the workpiece in a backrest
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B29/00—Holders for non-rotary cutting tools; Boring bars or boring heads; Accessories for tool holders
    • B23B29/24—Tool holders for a plurality of cutting tools, e.g. turrets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B39/00—Burnishing machines or devices, i.e. requiring pressure members for compacting the surface zone; Accessories therefor
    • B24B39/02—Burnishing machines or devices, i.e. requiring pressure members for compacting the surface zone; Accessories therefor designed for working internal surfaces of revolution
    • B24B39/023—Burnishing machines or devices, i.e. requiring pressure members for compacting the surface zone; Accessories therefor designed for working internal surfaces of revolution the working tool being composed of a plurality of working rolls or balls

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Turning (AREA)

Abstract

A device for the machining of cylindrical surfaces has a housing (1) in which there are consecutively arranged a toolholder (2) with tools (8, 8a) and a head (4) with deforming rollers (5). The toolholder (2) has an opening (2a) through which the workpiece (6) passes, and the tools (8, 8a) are clamped in the toolholder (2) so that their tips are opposite each other. The housing (1) is surmounted by guides (3) secured in a plane at right angles to the direction of longitudinal feed with provision for rotation during setting-up. The tool- holder (2) is fitted to the guides (3) with provision for transverse sliding floating in the course of machining. <IMAGE>

Description

SPECIFICATION Device for the machining of cylindrical surfaces on metal-cutting lathes This invention relates to tools used for machining of metals which undergo plastic deformation at the surface and is specially concerned with devices for the machining of cylindrical surfaces.
The invention disclosed can be used to advantage on lathes for the machining of shafts, piston rods of hydraulic cylinders, axles, and similar parts.
Lathes equipped with the disclosed device for the machining of cylindrical surfaces may find application in the automotive and agricultural machine industries, in road machinery building, and elsewhere.
According to the invention there is provided a device for the machining of cylindrical surfaces on metal-cutting lathes comprising a housing in which there are consecutively arranged a toolholder with a tool and a head with deforming rollers; the toolholder having a through opening for admitting a workpiece and having clamped thereto another tool so that the tips of the two tools are located opposite each other; the housing being surmounted by guides which are rotatable for setting-up and secured in a plane at right angles to the direction of longitudinal feed, the toolholder being fitted to the guides with provision for floating in the course of machining.
It is expedient that the guides are in the form of a disc with a through slot extending diametrically and that the toolholder should have the shape of a rectangular plate arranged in this through slot.
Simple as they are in point of construction, the guides and toolholder of this kind are reliable in operation.
The device for the machining of cylindrical surfaces on metal-cutting lathes materialized in accordance with the present invention enhances the accuracy of machining simultaneously with increasing labour productivity and extending the life of tools.
A specific embodiment of the present invention is hereinafter described with reference to the accompanying drawings in which: Figure 1 is a general schematic view of a device for the machining of cylindrical surfaces in accordance with the invention; Figure2 is a section on line II - II in Figure 1.
A device for the machining of cylindrical surfaces on metal-cutting lathes comprises a housing 1 (Figure 1) in which there are consecutively arranged a toolholder 2, guides 3, and a head 4 (Figure 2) with deforming rollers 5. The toolholder has the form of a rectangular plate with an opening 2a, through which there passes the workpiece 6, and two recesses 7 (Figure 1) and 7a in which tools 8 and 8a, respectively are located. The recesses 7 and 7a are arranged so that the tools 8 and 8a contained therein are disposed opposite each other, their tips being on the same axis. The tool 8 is fitted with provision for adjustment to a given turning diameter, using a kinematic pair comprising a nut 9 (Figure 2) and a screw 10. The tool 8a is immovably clamped in the toolholder 2.
The toolholder 2 is installed integrally with the tools 8 and 8a in the guides 3 with provision for floating in the course of machining.
The guides 3 take the form of a disc 11 with a through slot 12 extending diametrically to accommodate the toolholder 2 therein. The disc 11 is fitted to the housing 1 with provision for rotation during its setting-up, elongated bolt holes 13 (Figure 1) are provided to that end all the way along its circumference; screws 14 are inserted into the bolt holes 13.
The guides and toolholder can be provided in any other suitable form.
The head 4 has a cage 15 carrying the deforming rollers 5 spaced equidistantly apart all the way along the circumference in slots and contacting a supporting cone 16 contained in the housing 1. The toolholder 2 is fixed in the slot 12 by bars 17 and 18. The cooling system is neither described herein nor shown in the accompanying drawing, being outside the scope of the invention.
This device for the machining of cylindrical surfaces on metal-cutting lathes operates as follows: The housing 1 is installed on the carriage (not shown) of a lathe. The disc 11 is fitted to the housing 1 so that the parallel sides of its slot 12 are arranged in horizontal planes and is secured in place by the screws 14. The elongated bolt holes 13 facilitate the installation, enabling the disc 11 to be turned in any direction indicated by arrows A and B.
The tools 8 and 8a are set at a given turning diameter outside the lathe, using a standard piece of work. The toolholder 2 with the tools 8 and 8a set at the given diameter is inserted into the slot 12 and secured in place by means of the bars 17 and 18. On placing the work 6 between the centres (not shown) of the lathe, the deforming rollers 5 are set by means of the cage 15 at a diameter which depends on the interference to be used in orderto obtain a given surface roughness of the work 6. On completing all preparations and admitting the coolant-lubricator into the direction of arrow C and the lathe carriage is fed longitudinally in the direction of arrow S. As the toolholder 2 is displaced along the axis of the work at a given rate of feed, the tools 8 and 8a remove the prescribed stock, reducing the work 6 to a size specified for the surface rolling.The deforming rollers 5, travelling in the wake of the tools 8 and 8a, smooth down the minute surface irregularities due to the effect of plastic deformation.
When the machining has been completed, the workpiece is taken down from the lathe and the device is returned into its original position where the rollers 5 are automaticallly reset for the given turning diameter.
In operation, the toolholder 2 is floating at right angles to the longitudinal feed of the lathe carriage in the direction of arrow S, uniformly removing the stock all the way down the workpiece 6. In addition to thus ensuring high accuracy of machining and good surface finish, the device with the floating toolholdercatersforthe dimensional stability of the tools which equally share the turning load.
A pilot model of the device proposed by the present invention and fitted to a lathe has improved the accuracy of machining up to Clas h7-h8 with a simultaneous increase in labour productivity of half as much again.

Claims (3)

1 .A device for the machining of cylindrical surfaces on metal-cutting lathes comprising a housing in which there are consecutively arranged a toolholder with a tool and a head with deforming rollers; the toolholder having a through opening for admitting a workpiece and having clamped thereto another tool so that the tips of the two tools are located opposite each other; the housing being surmounted by guides which are rotatable for setting-up and secured in a plane at right angles to the direction of longitudinal feed, the toolholder being fitted to the guides with the provision for floating in the course of machining.
2. The device as claimed in Claim 1, wherein the guides have the form of a disc with a through slot extending diametrically, the toolholder having the shape of a rectangular plate arranged in said through slot.
3. A device for the machining of cylindrical surfaces on metal-cutting lathes substantially as hereinabove described with reference to the accompanying drawings.
GB8107362A 1981-03-09 1981-03-09 Machining of cylindrical surfaces by cutting and rolling Expired GB2094206B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8107362A GB2094206B (en) 1981-03-09 1981-03-09 Machining of cylindrical surfaces by cutting and rolling

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8107362A GB2094206B (en) 1981-03-09 1981-03-09 Machining of cylindrical surfaces by cutting and rolling

Publications (2)

Publication Number Publication Date
GB2094206A true GB2094206A (en) 1982-09-15
GB2094206B GB2094206B (en) 1984-07-18

Family

ID=10520256

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8107362A Expired GB2094206B (en) 1981-03-09 1981-03-09 Machining of cylindrical surfaces by cutting and rolling

Country Status (1)

Country Link
GB (1) GB2094206B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2584008A1 (en) * 1985-06-28 1987-01-02 N Proizv Ob Tulatschermet Shaft-machining and hardening equipment
FR2618712A1 (en) * 1987-07-23 1989-02-03 N Proizv Ob Tulatschermet DEVICE FOR THE MACHINING OF CYLINDRICAL SURFACES BY CUTTING AND DEFORMATION

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2584008A1 (en) * 1985-06-28 1987-01-02 N Proizv Ob Tulatschermet Shaft-machining and hardening equipment
FR2618712A1 (en) * 1987-07-23 1989-02-03 N Proizv Ob Tulatschermet DEVICE FOR THE MACHINING OF CYLINDRICAL SURFACES BY CUTTING AND DEFORMATION

Also Published As

Publication number Publication date
GB2094206B (en) 1984-07-18

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PCNP Patent ceased through non-payment of renewal fee