Abrading – Abrading process – With tool treating or forming
Reexamination Certificate
2001-09-04
2003-04-22
Hail, III, Joseph J. (Department: 3723)
Abrading
Abrading process
With tool treating or forming
C125S011010, C125S011040, C125S011060
Reexamination Certificate
active
06551177
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to forming devices for bevelling, and particularly to forming devices which can readily form bevels at small angles.
2. Prior Art
Products having gentle slopes are now universally used in modern industries. Such slopes are often formed by a grinding wheel of a grinder. The grinding wheel has a circumferential working surface, and the working surface is frequently beveled at an edge thereof. The bevel is generally formed by cutting the working surface with a forming device.
FIG. 4
show a conventional forming device
10
for bevelling. The forming device
10
comprises a base
12
, a rail
14
, a horizontal bar
16
, and a workbench
18
. A pair of support arms
22
extends upwardly from one side of the base
12
. A pair of coaxial pivot holes
24
is respectively defined in the support arms
22
. An axle
25
is pivotably received in the pivot holes
24
. One end of the rail
14
is fixedly connected to the axle
25
. The rail
14
is thus pivotable relative to the base
12
. The bar
16
is fixed to an underside of an opposite end of the rail
14
. A support plate
26
with a machined top surface is integrally formed on a top face of the base
12
. The bar
16
abuts against the machined surface of the support plate
26
. A beveller
32
is installed in a top surface of the workbench
18
. In an initial position, the rail
14
is horizontal.
In operation, the forming device
10
is placed on a grinder (not shown). A gauge (not shown) is placed between the bar
16
and the support plate
26
. The rail
14
thereby rests above the gauge at an angle, and the workbench
18
rests on the rail
14
at a corresponding angle. A grinding wheel (not shown) fixed on the grinder is located above the workbench
18
, with the axis of the grinding wheel perpendicular to the axle
25
. The grinding wheel is rotated at high speed. The workbench
18
is slidably moved along the rail
14
to contact and cut an edge of the grinding wheel. A circumferential surface with a bevel is thus formed on the grinding wheel.
Gauges having discrete thicknesses according to industry standards are widely used in this process. When a grinding wheel with a bevel of greater than one degree is needed, a single standard gauge or combination of different standard gauges can be used with the forming device
10
. However, when a grinding wheel with a bevel of less than one degree is needed, there is no standard gauge available. A special thin gauge must be manufactured for use with the forming device
10
. It is difficult and time-consuming to manufacture such thin gauge.
SUMMARY OF THE INVENTION
Accordingly, an object of the present invention is to provide a forming device which can form a bevel of less than one degree using standard gauges.
Another object of the present invention is to provide a forming device which can form two different bevels using a single standard gauge.
To achieve the above-mentioned objects, a forming device for bevelling in accordance with the present invention comprises a base, a rail, a workbench and a bar. The base has a support plate integrally formed on a top surface thereof. The support plate has a precision-machined surface. A pair of support arms extends upwardly from the base. A pair of coaxial pivot holes is respectively defined in the support arms, and an axle is received in the pivot holes. One end of the rail is fixedly connected with the axle. The rail is thereby pivotable relative to the base. The workbench rests on the rail, and is slidably moveable along the rail. A beveller is fixedly installed in a top surface of the workbench. The bar is fixedly connected to an underside of an end of the rail that is opposite to the end where the axle is connected. The bar comprises a large bar abutting the precision-machined surface, and a coaxial small bar. The rail can be adjusted to allow the forming device to bevel at an angle of less than one degree, by placing one or a combination of standard gauges between the small bar and the support plate.
REFERENCES:
patent: 4262649 (1981-04-01), Espinosa
patent: 6015346 (2000-01-01), Bennett
patent: 6089976 (2000-07-01), Schneider et al.
Chung Wei-Te
Grant Alvin J.
Hail III Joseph J.
Hon Hai - Precision Ind. Co., Ltd.
LandOfFree
Forming device for bevelling does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Forming device for bevelling, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Forming device for bevelling will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3066672