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JIS B 6542 (1991) (English): Veneer lathes --
Test and inspection methods
The citizens of a nation must
honor the laws of the land.
Fukuzawa Yukichi
UDC 621.941.001.4:674.2.05
JAPANESE INDUSTRIAL S TANDARD
Veneer lathes - Test and
inspection methods
JIS B 6542-
1991
Translated and Published
by
Japanese Standards Association
Printed in Japan 10 S
PROTECTED BY COPYRIGHT
In the event of any doubt arising,
the original Standard in ap2mel::e is to be final authority.
PROTECTED BY COPYRIGHT
UDC 621.941.001.4:674.2.05
JAPANESE INDUSTRIAL STANDARD J I S
Veneer lathes - Test and inspection methods B 6542-1991
This Japanese the structure, nominal sizes
and methods for functional tests, tests, accuracy inspections and
machining accuracy inspections of the veneer lathes 350 rom or over to 4500
mID or under in length of tool surface and 400 rum or over to 2200 rom
or under in swing(l) ..
Note (1) The maximum diameter of of being machined.
Remarks 1. The applicable standard to this Standard is as given in the
following:
JIS B 652l-Methods of measurement for noise emitted by wood
working machinery
2. In this Standard, the units given in { } are in accordance
with conventional units~ and are appended for informative
reference ..
2. Structure
part of the veneer lathe shall have sufficient rigidity and not
adversely affect its machining accuracy.
3. Nominal sizes
Nominal sizes of veneer lathes shall be in terms of the length
of tool surface (mm) and swing (mm), and shall be in accordance with
Tables land 2.
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2
B 6542-1991
Table 1. Lengths of tool fitting Table 2. Swings
surfaces Unit: mm Unit: rom
Length of tool Tolerances Swing Tolerances
fittlll surface
400
:)50
600
500
700
600
BOO
1050
900
1200
1000
1200
1350
1 :350
1500
1650
1850
1800
:2 100
2000
2 ;:100
2200
2 '1·00
700
27S0
2950
.3 050
.3 3.50
4200
4· 300
4450
1500
Remarks: Veneer lathes shall be designated
by name and size (length of tool
fitting surface x swing).
Example: Veneer lathe 1500 x 800
4. Functional test methods
Functional tests of veneer lathe shall be carried out in accordance
with Table 3.
Table 3 .. Functional test
No .. Test item Test method
1 Electrical equipment Test the insulation condition once each,
before and after running tests.
2 Starting, stopping and Start and stop the spindle several
running operations of times at an appropriate speed to test
rotations of the left and smoothness and reliability of operation.
right spindles
3 Changing operations of Change the speed of the spindles, to
speeds of the left and i! test the smoothness of operation and
right spindles I reliability of indication of the control
device.
j
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3
B 6542-1991
Table 3 .. (Continued)
No. Test item I Test method
4 Starting, stopping and Draw-out and draw-in the spindle repeatedly
llnning operations of to test the smoothness and reliability of
drawing-out and-in motions starting and stopping.
of the left and right
spindles
5 Starting, stopping and run- I Conduct starting, stopping and rapid
ning operations of automati9 feeding (forward and backward) at an
and rapid feeding of the appropriate speed several times to test
1
knife holder ; smoothness and reliability of operation.
:
6 Changing operation of feeds I Change feeds to test smoothness of opera-
of the knife holder ! tion and reliability of indication.
i
I
7 Cutting angle adjusting I Test smoothness of function and accuracy
device I of indication.
8 Tool gap adjusting device 1 Test smoothness of function and accuracy
i of indication.
9 Marking device I Test smoothness and reliability of
I function.
i
10 Fitting and detaching of Test reliability and smoothness of fitting
i
knife and nose bar I and detaching of knife and nose bar.
I
11 Mounting and dismounting of Test reliability and smoothness of mounting
workpieces and dismounting of workpieces.
12 Safety device i Test reliability of safety function for
I worker and protective function for machine.
!
13 Lubricating system Test reliability of functions such as
oil tightness, adequate distribution of
oil, etc.
14 Oil hydraulic system I Test reliability of functions such as oil-
I tightness, pressure adjustment, etc.
i
i
15 Pneumatic system Test reliability of functions such as
airtightness, pressure adjustment, etc.
16 Attached equipment Test reliability of function.
Remarks: For veneer lathes without relevant functions, test items
corresponding to these in Table 3 shall be omitted.
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4
B 6542-1991
5. Running Test methods
5.1 No load running test Allow the spindle to rotate and continue
for 30 to 60 min, measure required electric power and noises after
temperatures have been stabilized, record each item in
Record form 1 of Table 4 and, at the same time observe abnormal vibrations
by the sense of touch.
the measurement of noise shall be made in accordance with JIS
B 6521.
Table 4. Record form 1
Rotational speed Required electric
Time of of spindle Temperatures °c power
measure- r/mn {rpm} Noise in A
No. ment, I----r-M-e-as-u-r-e_-+----r------.------r----+--....,-E-l-ec-t-r-rc...,..----I ~~1:cter- Remarks
llOur
amnidn ute Marked macetnut ally Gear box ,RtOemOplelrl-,i V curAre nt InkWp ut dB
measured I----r---t---r'--l--~-__I ature
Remarks: Record the measuring conditions of noise in remarks column.
5.2 Load running test After the tests on respective items specified in
Table 5 have been carried out, carry out the of a workpiece,
measure required electric power and noises, record each item specified in
Record form 2 of Table 6, and, at the same time, observe abnormal vibrations
and conditions of cut surface by the sense of touch.
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Table 5 .. Load running tests
Unit: mID
Permissible
No. Inspection item Measuring method Illustration of method
deviation
1 Displace In ~APPlY a fixed indicator (e.g.
ments of hori- Left on the floor) to the spindle
left and zontal at the position of 100 mm
right plane 'from the sleeve end face,
and consider the difference
of readings, when a material
~I-n- ---4-L-e-f-t ~ wood has not been mounted
and has been , to be
i
velrt - the measured ).
ca
plane Right
2 I Variation of a a test indicator being 0 .. 02 in the
horizontal tool mounted on the press case where
gap bar or both ends of knife the
holder to the knife holder or thickness is
pressure bar, and consider the 1 or less,
maximum value of the differ 0 .. 05 in the
ences between at the time of case of the
no load and at the time of peel thick
~ under load to be the measured ness being
;....j value. over I up to
tTl
(1 5 including.
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