FR2651704A1 - GUIDE TABLE FOR PORTABLE MILLING MACHINE. - Google Patents

Abstract

The invention relates to tooling. In a guide table (1) for a portable milling machine (14) comprising a base plate (2) and a stop plate (10) perpendicular to the first, spring-loaded pressure pads (30) are used to guide the workpiece (12). The stop plate (10) and the milling machine (14) are mounted on the base plate (2) so that they can slide and be immobilized. This makes it possible to work the part (12) over its entire section. Main application: portable electric tools.

Description

The invention relates to a guide table for a portable milling machine,

  comprising a base plate and an abutment plate perpendicular to the first, and in which there is provided on each of the plates, the base plate and the abutment plate, a carrier element

  sliding and immobilisable, and equipped with a

spring loaded.

  In a known guide table, the portable milling machine, for example a high-milling milling machine can be fixed so that an edge of the workpiece guided by

  the pressure devices can be worked to help

  strawberry. The thrust plate is then fixed rigidly

  the base plate; to retain the provisions

  pressure plates, guide plates are used which can slide freely along the base plate

  and the stop plate by flanged guide edges.

  that can be immobilized with the help of screws.

  Due to the presence of the fixed stop plate, it is only possible to work the workpiece along its edge or in its vicinity. To adjust

  pressure devices precisely on the workpiece

  sided, we must loosen several meetings each time.

  screwed locks. If you loosen the clamping screw cor-

  laying on the pressure device acting vertically

  This pressure device can fall freely

  down, so that the cutter and the pressure pad

can be damaged.

  The object of the present invention is therefore to create a milling table of the kind mentioned at the beginning by means of which the workpiece can be machined on as many faces as possible and which ensures

  precise and safe adjustment of the pressure devices.

  According to the invention, this problem is solved by

  the fact that the stop plate and the milling machine are

  on the base plate so as to be able to slide perpendicular to the axis of the cutter and to be able to

to be immobilized.

  Thanks to the possibility to adjust the stop plate spaced from the axis of the cutter, it is possible to machine the workpiece, not only along

  its edge or in the vicinity of that edge, but

  milking on all its section. This results in an increase

  considerable expansion of the possibilities of the

guidance according to the invention.

  For precise adjustment of the pres-

  simply loosen a nut. Thanks to the fact that a compression spring is interposed between the nut and the support arm of the pressure device, this support arm is held firmly and the pressure pad which

  acts vertically is not likely to fall on

  is. This greatly increases the safety of the whole

device.

  An exemplary embodiment of the invention is de-

  written with more details in the following by referring

auk drawings.

  In these drawings, Figure 1 shows the guide table viewed from the side; FIG. 2 represents the guiding table seen

On top.

  The guide table 1 can be attached to a plate

  4 by means of its base plate 2 and clamps Perpendicularly to its bearing surface, are provided in pairs of holes 6 in which two screws 7 are threaded and fixed with nuts to

ears 8.

  To these screws 7 is fixed, perpendicularly to the base plate 2 and by means of a stirrup 9, a plate

  abutment 10 which has another bearing surface 11.

  After having loosened the wing nuts 8, it is possible to

  thread the screws 7 into the other pair of holes 6 and

  ler the stop plate 10 of the corresponding distance.

  The part 12, guided along the two bearing surfaces 5 and 11, can be worked using a cutter 13 which is driven by a portable milling machine 14, here high milling, and which has a milling axis 15 The milling machine 14 is movably fixed in translation

  on the underside of the base plate 2 of such

  as the cutter 13 passes through an opening 16 of the base plate 2 and emerges above the surface of the

scope 5.

  In the middle of the front surfaces 17 of the

  2 and the stop plate 10, are fixed, with the aid of screws 18, of the support brackets 19 whose

  free branches extend beyond the bearing surfaces

5 and 11 respectively.

  These brackets each have an elongate hole 26 in which a screw 22 is fitted. Between the clamping nut 23 and the arm 25 is a socket

  clamping device 27, and a compression spring 29 is

  placed between a collecette 28 and the clamping nut 23.

  When the nut 23 is loosened, the flange 28 is

  against the carrier arm 25, which

  the carrier arm 25 to slide freely.

  At the free end of the support arm 25, are

  Drum pads 30 which are mounted to assist

  of springs 31 on rods 32 so as to be able to

  to derive freely under effort; these pads are used to guide

from room 12.

  On the pressure pad 30 which acts horizontally

  Alternatively, a narrow guide tongue 33 may be used to guide the small-sized pieces 12 and engage under the vertically-acting pressure pad 30. Two guide bars 34 which are mounted for sliding in bores 35 of the base plate 2 serve to fix the milling machine 13 to the base plate 2. For fine adjustment of the milling cutter 13, a fine adjustment device is provided. 36 equipped with a wheel

  37, the fine adjustment device 36 being

  on a lateral tongue 39 of the carrier square

19.

  A compression spring 40 mounted on a bar

  The guide 34 exerts on the milling machine 14 a di-

  fitted to the stop plate 10, an adjusting ring

  41 screwed on the guide bar 34 acting as a stop.

  By turning the adjustment wheel 37, you can make

  smooth the cutter 13 in the direction perpendicular to the stop plate 10, to place it in n'imoorte

what position desired.

  As shown in FIG. 2, sliding extension brackets 42, which give a rigid support, are not visible on both sides of the base plate 2.

in room 12.

R E V E N D ICAT IONS

  1. Guide table for portable milling machine,

  comprising a base plate and a stop plate

  pendular to the first, in which there is provided on each of the plates, the base plate and the abutment plate, a carrier element, slidably mounted and

  legible, and provided with a spring-loaded pressure pad,

  characterized in that the abutment plate (10) and the

  se (14) are mounted on the base plate (2) so as to slide perpendicular to the axis (15) of

  the strawberry and to be able to be immobilized.

  2. Guide table according to claim 1, characterized in that in the base plate (2) there are provided a plurality of holes (6) in which screws (7) can be threaded to secure the stop plate (10).

  at different distances from the axis (15) of the cutter.

  3. Guide table according to claim 1 or 2, characterized in that at a front surface (17) of each of the plates, the base plate (2) and the abutment plate (10), is fixed a carrier square (19) whose free leg (20) has an elongated hole (21) into which a clamping screw (22) has passed, with which a support arm (25) provided with an elongated hole (26) can

  to be displaced in translation in two directions

  between them and be immobilized.

  4. Guide table according to claim 3, characterized in that a clamping nut (23) cooperates with the clamping screw (22), and in that between the clamping nut (23) and the support arm (25) is provided a compression spring (29) which presses the carrier arm (25) against the carrier bracket (19) when it has been loosened

the tightening nut (23).

  5. Guide table according to claim 3 or

  4, characterized in that the carrier bracket (19) has

  on its bolted branch, at least one tongue la-

  terial (39) to which is attached, perpendicular to

  the axis (15) of the milling cutter, an adjusting wheel (37)

  part of a fine adjustment device (36) acting on the milling machine (14). 6. Guide table according to claim 5, characterized in that at least on a guide bar (34) of the fine adjustment device (36) is arranged a compression spring (40) which exerts a force on the

  milling machine (14) in the direction of the stop plate (10).

  7. Guide table according to one of the claims

  3 to 6, characterized in that the carrier square

  (19) can be attached to the base plate (2) of such

  that its free branch (20) does not overflow beyond

bearing surfaces (5 and 10).

  8. Guide table according to one of the claims

  1 to 7, characterized in that extension stirrups

  (42) are slidably mounted in the baseplate

  se (2) and in the stop plate (10).