Hafco GHD-50 User manual

INSTRUCTION MANUAL
GHD-50
Geared Head Drill (415V)
50mm Drilling Capacity with Automatic
Feed & Tapping 4MT
D178
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Instruction Manual for GHD-50 (D178)
23/12/2014

Operation Manual Total 1
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Contents
1. Main use and features of the machine
2. Main technical data
3. Brief des
cription of the driving system and its structure
4. Electrical system
5. Lubrication and coolant system
6. Hoisting and installation
7. Use and operation of the machine
8. Machine adjustment
9. Machine use and maintenance
10. Machine accessories
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Instruction Manual for GHD-50 (D178)
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Dear end-user,
Thank you very much for choosing our products. Please let us have the model of your machine,
series number, as well as the name, address and correspondence method of your company in
order to facilitate us to let you have a good service.
Important notice:
1. Please immediately contact your dealer in case the machine, accessories or documents are
not in conformity with those indicated in the packing list after the machine package is
opened.
2. Please carefully read this Operation Manual particularly the electric part of this documents
before installation, testing and running the machine.
3. Removing grease on the machine (particularly on the column) and checking lubrication oil
in each place is well filled . Running the machine without lubrication oil is strictly
forbidden. Lubrication of the machine as per the stipulation of this documents is required.
4. Ground wire of the machine shall be well connected. When test running, push jog button in
slow spindle speed to check if direction of spindle revolution is correct.
5. Machine must be stopped if spindle speed or feed rate change is necessary.
6. Please check if cutting tool or work piece is well clamped before machining
7.
The red mushroom push button located in front of the spindle box is an emergence push
button for emergency purpose only. Familiar with its position and its use are necessary.
8. Professional electric service engineer is required for electric maintenance.
9. The machine must be stopped when you need removing away the cutting material around the
drill. Moving the cutting material by hand or by hook is definitely forbidden.
10. Correct use and daily maintenance of the machine are required in order to keep machine
accuracy and its lifetime in long time.
11. We will much appreciate if you could solve some problems of the machine.
In order to facilitate us for the service, please let us know the details regarding the places and
phenomenon of the troubles if you could not solve problems.
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1.Main use and features of the machine:
GHD-50 series vertical drilling machines are our new products designed and
developed by our-self based on our accumulated experience in so many years in this
field. It is a light, column type, superior quality and high efficiency machine with
milling function vertical drilling machine. It is really a multi-function universal machine
which could be widely used for small and middle sizes of work pieces for drilling, spot
facing, reaming, tapping and milling etc. Besides, some machine tool accessories could
also be used on this machine. The machines are suitable for the machining workshop,
maintenance workshop and production line etc.
Features:
1.1
Good in appearance, easy in operation, convenience in maintenance and well
consideration in safety protection
1.2 Single speed motor is to be used for the main drive system with sufficient driving power
but saving energy. Wide spindle speed range is adopted driven by gears.
1.3 Oil lubrication both for the main driving system and for the feed driving system could
be supplied automatically by a new type of trochoid pump when it is working in forward
and reverse revolution.
1.4 The spindle features good rigidity and good wear resisting and equipped with
tool
disassembly and balancing device.
1.5 The worktable could be turned round the column center line or worktable center line itself
or horizontal shaft centerline
by manual and could be moving up and down by manual or
automatically.
1.6 A locking device for the spindle quill is available for the purpose of milling job. There
is a screw hole located at the end of the main spindle for the clamping of different kinds
of milling cutters.
1.7
Main operation levers and push buttons could be reached easily that makes you
comfortable when you operate the machine.
1.8 Spindle feed both in mechanical and in electrical with micro feed structure is available
in this series machines.
1.9 Besides the normal indication both for the spindle speed and for the cutting depth, the
machine also has a digital display showing the above figures.
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1.10 Superior quality material with special treatment for the wear-resisting purpose has been
used for transmission parts such as gears, worm and worm shaft, rack, lead screw etc as
well as for some key parts like spindle and spindle quill.
1.11 An adjustable safety protection clutch in the spindle feed device is available in order to
prevent the machine and tools from damage when overloaded.
1.12 A safety protection guard under the spindle box is
available as it is not only prevent
coolant splash while cutting but also could observe the machining status.
The guard is interlocked with the spindle, so when the guard is opened, the spindle
could not be running until the protection guard keeps his position.
2. Main technical data:
2.1 Main technical data
No. Name of the items Unit Data
1 Max. drilling diameter (steel) mm 50
2 Max. tapping diameter (steel) mm M30
3 Max. milling cutter diameter mm 80
4 Distance between spindle center line to the center line of column mm 360
5 Max. distance between spindle end to the surface of the worktable
(automatic) mm 585(550)
6 Max. distance between spindle end to the worktable surface of the base mm 1170
7 Max. stroke of the spindle mm 240
8 Spindle taper Morse MT4
9 Number of speed steps of the spindle Step 12
10 Spindle speed range r/min 52~1400
11 Feed steps of the spindle Step 4
12 Feed range of the spindle mm/r 0.1-0.4
13 Max. stroke of worktable and its bracket Mm 530(410)
14 Rotation degree of worktable and its bracket in cross direction degree ±45°
15 Working area of the worktable (Lx W) mm 580×460
16 Working area of the worktable of the base (L x W) mm 445×435
17 Numbers and width of the T sl
ots both for worktable and
worktable of base mm 3-T14, 2-T14
18 Diameter of column mm φ180
20 Power and speed of the main motor Kw, rpm 3/1440
21 Power and speed of the worktable up and down motor. Kw, rpm 0.25/1440
22 Power and flow rate of the coolant pump motor Kw, L/min 0.085/6
23 Machine dimension (L x W x H) mm 950×680×2405
24 Weight of the machine (Net weight/Gross weight) Kg 670/730
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2.2 For the machine appearance and its main technical data, see diagram 1.
3. Brief description of the driving system and its structure:
The machine consists of spindle box, column, machine base, worktable and its bracket,
electric cabinet, coolant device and machine accessories, total seven component parts.
Spindle revolution is main motion of the machine. During drilling and milling processing,
spindle movement along with its axis is a feed motion, during milling operation, movement
of worktable in longitudinal or cross directions or rotation of the worktable is also a feed
motion. Worktable up and down movement and worktable turn round itself is an auxiliary
motion. To those big or higher work piece that could be clamped on the worktable of the
base. The worktable and its bracket should turn round the column to a proper area far away
from the machining area.
Two separately vertical motors realize machine transmission.
A special pump supplies
coolant water.
Two operating levers in the front of spindle box could make changes for the spindle speed
in 12 steps.Changing either lever position could drive a triple gear and a quadruple gear
moving along
with axis direction results the speed change. One of levers has an idle
position that is for the spindle rotation by manual for loading and unloading of tool cutters
as well as for the adjustment of work piece only. Adjustment of the feed rate could be
realized by shifting a set of gears controlled by changing a lever position in the right corner
of spindle box. It also has an idle position for disengaging power feed transmission of the
spindle for the micro adjustment of the spindle by manual.
Up and down movement of the worktable and its bracket is completed by a vertical speed
reduction motor. Of cause, little adjustment for the height of the worktable could also be
made by manual.
Two kinds of lubrication, auto or manual, of the machine are available. Auto lubrication
system consists of a filter ( located inside of a tank under spindle box), a lubrication oil
pump and an oil distributor (located on the top of spindle box), a visual window and an oil
nozzle etc.
Please refer to the diagram 2 for the transmission system of the machine.
For the gear, worm and worm shaft, rack and pinion etc, please see table 1.
For the details of roller bears to be used on the machine, please refer to the diagram 3 and for
a list of roller bears, please refer to the table 2.
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drawing（1）picture of appearance of machine
Page 5
column
base
bracket seat
worktable
spindle box
electric box
speed-change box
1
2
4
3
5
6 7 8 9
10 11 12 14
15 16 17 18 19
20 21 22
23
1"
20 10
0"
0
mm/in
OFF
ON/O
6.25
0.2
150 130 140 120 100 110
90 70 60 50 40 30 80
2" 3"
150
86
6"
5" 4"
mild steel
cast iron
6.94
6.21
0.3
0.2
10.42
8.33
9.25
9.38
10.40
11.57
0.2
0.3
0.2
0.3
8.09
0.3
30 35 40 45 50
240 230 220 190 200 170 180 210 160
/min
n
400
695
515 215 300
8" 7"
FKN
1.67
3.33
2.67
1.20
5.21
3.34
4.17
mm/
s
0.2 0.2
0.2
0.2
0.3
0.2
0.1
0.2
0.2
mm
D
10
20
15
25
5.78
0.3
The cutting rating chart
for reference
9"
330
1050
95
TOOL SETTING
TOOL DISMOUNTING
790
250
0
580
180
72 52
xmin
OFF
13
0.30 0.40 0.20 0.10
0
mm/r
4
3
2
1
Chart of lubrication position
lubrication period
Oiling once for each
shift
Oiling once for each
shift
Changing grease
once every 6 month
Oiling once for each
shift
Oiling once for each
shift
Oiling once for each
shift
6
5
64
Worm bearing for
Carriage lifting
Surface of upright
column
Carriage lifting
device
No.of
lubrication
position
5
3
2
1Oil pool of
spindleboox
Surface of main
spindle sleeve
Surface of upright
column
lubrication
position
No.40
lubricant
Grease
designation
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drawing 2 picture of transmission
page 6
10
9
6
7
8
23
22
21
20
19
18
17
16
15
14
13
12
11
24 25 26 2827 29 30
33
37
36
35
34
32
31
1
2
3
4
5
38
39
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4.1 list of gear, worm wheel,worm and rack table
（
1
）
Number on
the drawing 1 2 3 4 5 6 7 8 9 10
Part drawing
NO. 12017 12012 12013 12011 32080 32036 31009 32064 32041 32042
N umber of
teeth and
starts
40 1 26 30 15 37 70 1 36 26
Module 2 2 1.5 1.5 2.5 2.5 2 2 1.75 1.75
D irection of
helical angle
Class of
Accuracy 9 9 9 9 8-7-7 8 8 9 8-7-7 8-7-7
Material 45 45 45 45 45 QT400 45 45 45
Heat
treatment and
hardness
T235 T235 T235 T235 HV500 T235 G48 G48
Number on
the drawing 11 12 13 14 15 16 17 18 19 20
Part drawing
NO. 32043 32059 32058 32044 32057 32056 32045 32046 32052 32048
Number of teeth
and starts
17 22 32 32 41 26 43 15 60 25
Module 1.75 1.75 1.75 1.75 1.75 1.75 1.75 1.75 1.75 1.75
D
irection of
helical angle
Class of
Accuracy 8-7-7 8-7-7 8-7-7 8-7-7 8-7-7 8-7-7 8-7-7 8-7-7 8-7-7 8-7-7
Material 45 45 45 45 45 45 45 45 45 45
Heat
treatment and
hardness G48 G48 G48 G48 G48 G48 G48 G48 G52 G52
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4.1 list of gear, worm wheel,worm and rack table
（
1
）
Number on
the drawing 21 22 23 24 25 26 27 28 29 30
Part drawing
NO. 32049 32049 32009 32009 32010 32013 32014 32023 32016 32017
N umber of
teeth and
starts
62 40 40 40 18 61 50 40 64 22
Module 2.5 1.5 1.5 2 2.5 2.5 2.5 2.5 2 2
D irection of
helical angle
Class of
Accuracy 7-6-6 9 9 7-6-6 7-6-6 7-6-6 7-6-6 7-6-6 7-6-6 7-6-6
Material 40Cr 40Cr 40Cr 40Cr 40Cr 40Cr 40Cr 40Cr 40Cr 40Cr
Heat
treatment and
hardness
G42 G42 G42 G52 G52 G52 G52 G52 G52 G52
Number on
the drawing 31 32 33 34 35 36 37 38 39
Part drawing
NO. 32018 32019 32020 32022 32025 32026 32027 12004 12015
Number of teeth
and starts
25 35 30 20 45 18 55 77 14
Module 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5
D
irection of
helical angle
Class of
Accuracy 7-6-6 7-6-6 7-6-6 7-6-6 7-6-6 7-6-6 7-6-6 9 9
Material 40Cr 40Cr 40Cr 40Cr 40Cr 40Cr 40Cr 45 45
Heat
treatment and
hardness
G52 G52 G52 G52 G52 G52 G52 T235 T235
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Instruction Manual for GHD-50 (D178)
23/12/2014