Classifications

• • 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
  • B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
  • B23Q11/08—Protective coverings for parts of machine tools; Splash guards
• • 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
  • B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
  • B24B55/04—Protective covers for the grinding wheel

Definitions

• the object of the present invention is an adjustable machine tool guard, provided with a transparent protecting shield, for splintering machine tools, preferably for lathes and circular grinders.
• Personal protecting devices are often inconvenient and easi ⁇ ly scratched, and obstruct the working process. Consequent ⁇ ly the protecting devices are often removed when it is ne ⁇ cessary to observe closely the piece to be machined during the operation process, in which case the danger of accident becomes evident.
• circular cutter machines are generally provided with sideways movable, vertical protecting boards, normally made of steel.
• Such boards are relatively well applicable in a machine process of long duration (for example in manu ⁇ facturing cog-wheels) , but are impractical and inconvenient in shorter processes.
• the boards prevent the unobstructed observation of the working process and render it troublesome and slow to change either the piece to be machined or the working parts of the machine tool.
• protecting glass or screen devices which are supported by shaft members and
• the present invention has not . got the drawbacks of the above described arrangements, but provides for remarkable advan ⁇ tages.
• the guard is best suited in machine tools where the piece to be machined itself carries out the chipping move ⁇ ment, in other words rotates, as in lathes and circular grin ⁇ ders.
• the guard according to the invention has a solid structure and steady assemblage, it is easily adjustable and movable to every direction, and it can be transported along the whole splintering area. Without difficulty the guard can be automatically connected to move for instance alongside the tool carrier.
• the guard can easi ⁇ ly be provided with illumination devices and/or an aspira ⁇ tor for removing dust and smoke.
• the guard is simple to install in various machine tools of vari ⁇ able sizes, even in older types.
• the guard Owing to its bearing, the guard is easily movable to various positions, in which case the employing of the guard is more probable than that of troublesome, separate protecting boards.
• the guard can simply be pulled aside, wherefore the changing of the piece to be machined or of the working parts of the machine tool does not cause any inconvenience.
• Figures 1 and 2 illustrate one preferred embodiment of the invention, wherein the guard is attached to a centering lathe.
• This embodiment comprises the guide bars 1, parallel to the lathe spindle and attached to the vertical support rails 2, which rails are secured to the support bases 3.
• the said support bases 3 can be fixed either to the lathe bed in the rear side of the machine or to some other solid base.
• the invention comprises the carriage 4, which is attached to the guide bars 1 by rolling bearings or rollers 9, and to which carriage is fixed the body 5 of the guard, in a fashion that the said body can be moved in transversal direction with respect to the guide bars 1.
• the transparent shield 6 is attached to the body 5 with hinges located at the top edge of the shield 6.
• the body 5 can be provided with a lamp 7 and an aspirator hose connec ⁇ tion 8.
• the height of the guide bars 1 with respect to the piece to be machined is readily adjustable during the instal ⁇ lation of the guard by shifting the position of the rails 2 in relation to the support bases 3.
• the guide bars 1 and the rails 2 are preferably manufactured of aluminium compound, so as to achieve a sensitive bearing and a structure which is both light and firm.
• the shield 6 is adjusted in its ideal po ⁇ sition by moving the body 5 with respect to the carriage 4. Their reciprocal position can be secured for example by using.tightening-up screws. Moreover, the shield 6 can be swung up and down by employing the hinges. The whole carri ⁇ age 4, including the shield 6, is easily moved aside along the guide bars 1 , for example when the piece to be machined is changed or measured.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Auxiliary Devices For Machine Tools (AREA)
• Turning (AREA)
• Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
• Sawing (AREA)

Priority Applications (1)

Applications Claiming Priority (2)

Publications (1)

Family

ID=8513217

Family Applications (1)

Country Status (7)

Cited By (5)

Families Citing this family (1)

Citations (4)

• 1980
  • 1980-01-30 FI FI800277A patent/FI65934C/fi not_active IP Right Cessation
• 1981
  • 1981-01-30 GB GB8129424A patent/GB2081834B/en not_active Expired
  • 1981-01-30 WO PCT/FI1981/000008 patent/WO1981002130A1/en active Application Filing
  • 1981-01-30 DE DE813134455A patent/DE3134455A1/de active Granted
  • 1981-09-25 DK DK423981A patent/DK147196C/da not_active IP Right Cessation
  • 1981-09-25 SE SE8105688A patent/SE435345B/sv not_active IP Right Cessation
  • 1981-09-28 NO NO813277A patent/NO152777C/no unknown

Patent Citations (4)

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