FR2622493A1 - CHIP REMOVAL FINISHING TOOL FOR SURFACE MACHINING MACHINE - Google Patents

Abstract

Disclosed is a finger-shaped chip removal finishing tool which is made up of individual elements bundled together at one end by an annular portion, such as wire bristles, grinding wheel segments, material bristles. plastic coated with abrasive, or the like, and which is intended to equip a surface machining machine. This tool is characterized by the fact that said annular part 2, 21 comprises a part 22 in the form of a sleeve which serves for its fixing by pushing in or by internal clamping on a corresponding counterpart, and the inside of which is free. Application to surface machining.

Description

The invention relates to a finishing tool for removing

  finger-shaped chips which consists of ele-

  individual members bundled at one end by an annular portion, such as wire bristles, generally of metal, grinding segments, bristles of material

  abrasive-coated plastics, or the like, which is

  equip & equip surface machining machines.

  We know machines of this kind which are equi-

  of a rotating tool, and in which D finishing tools by removal of -copeaux in the form of. finger are held interchangeably on a base plate

  positively connected to a motor shaft. These tools are

  parallel axes on the same circle and, as a rule,

  each of them protrudes from its free end through a bore formed in a guide plate whose distance to the base plate is adjustable. Such a machine is known for example thanks to the German utility model

DE-GM-78 07 217.

  Since these finger-shaped tools, which can be made as indicated above, are worn during machining work, they are interchangeably mounted on the base plate. The corresponding annular portion which flushly encloses the individual elements of the tool by its attachment end is accommodated in appropriate holes in the base plate. To achieve this removable attachment, we

  uses clamping screws inserted laterally

  towards the circular base plate. When worn,

  the various machining tools of such a machine are generally

  replaced together. To this end, screw fasteners of all finger-shaped tools must be removed and tightened again after new tools have been put in place. The object of the invention is to conform a finishing tool of the kind specified above so that it can be attached more simply and quickly to the base plate of surface machining machines of a corresponding type. This purpose is achieved through such a finishing tool which is characterized by the fact that its annular part

  has a sleeve-shaped portion which serves as a fixture

  penetration or internal clamping on a corresponding counterpart, and whose cross-section

is free.

  In the tool according to the invention, and with a relatively low manufacturing cost and material cost, the annular portion which serves as a recess attachment is extended by a sleeve-shaped part which allows fixation by depressing or by internal clamping on a corresponding counterpart of the plate

  basic. Thanks to this sleeve-shaped part, the diameter

  the outside of the finger-shaped tool can be

  preserved even in the area of fixation, so that,

  that the various tools are arranged in a circle on the plate

  basic, we can have an optimal number of these tools.

  The extreme part in the form of a sleeve makes it possible to use

  internal clamping devices which are sim-

  ples and which ensure adequate fixation even when

  the inner wall of the cylindrical end portion is smooth.

  It is possible to add for example stop elements to

  inside this sleeve-shaped part.

  The following description, which does not present

  no limiting character, will make it possible to understand

  The present invention can be practiced. It must be read opposite the drawing whose single figure represents an elevational view of a finishing tool according to the invention, the end of which serves to fix it.

partially shown in section.

  In this figure, the reference numeral 1 designates as a whole a finishing tool by removal of chips in

  finger shape which is intended to equip machines for machining

  surface swimming. This tool consists of a plurality of substantially parallel bristles which are made of a suitable material from longer wire sections. These bristles 11 are assembled into a bundle at one end and are assembled by means of an annular element.

  2, which encloses them together.

  By its anterior part 21, this element 2 serves to

  encasing the various hairs 11 and enclosing them in a

  CWater. A sleeve portion 22 of the element 2 con-

  is an extension of its anterior part 21, and the

  The portion 22 has a length sufficient for the finishing tool 1 to be depressed by means of it onto a suitable counterpart of the surface-working machine, and it can be maintained by a corresponding blocking or internal clamping device, while

being easy to assemble.

  Instead of such wire bristles, the finger-shaped finishing tools may also be corresponding grinding segments,

  plastic bristles coated with abrasive, or the like.

Claims (1)

- CLAIM -   Finishing tool with chip removal   finger shape which is composed of individual elements   bundled at one end by an annular portion, such as wire bristles, grinding wheel segments, abrasive-coated plastic bristles, or the like, and which is intended to equip surface-working machines, characterized in that said annular portion (2, 21) comprises a sleeve-shaped portion (22) which serves for its fixation by depression or internal clamping on a   corresponding counterpart, and whose interior is free.