Grizzly H6087 User manual

Digital Readout System

MODEL H6087-H6098

INSTALLATION MANUAL

WARNING: NO PORTION OF THIS MANUAL MAY BE REPRODUCED IN ANY SHAPE

OR FORM WITHOUT THE WRITTEN APPROVAL OF GRIZZLY INDUSTRIAL, INC.

#CA6351 PRINTED IN CHINA

Installation Instructions

Precaution

1. The travel length of the glass scale must

be longer than the maximum travel of the

machine. There should be at least 10mm

of clearance between the ends of the glass

scale and the maximum travel of the machine,

as shown in Figure 1.

Figure 1. Glass scale clearance.

2. To ensure the reliability of the graduated glass

scale, and to avoid any possibility of scale

misalignment, the scale should be installed

on machined flat surfaces wherever possible.

In the case where there are no machined flat

surfaces available on the machine, machined

flat blocks or the aluminum fillers should be

used. Wherever possible, the scale ends and

the machine reader head should be installed

on a flat surface.

3. Indicators must be set up properly to ensure

accurate measurement. Make sure indicator

axis is perpendicular to the work. If a vertical

dial indicator is used, as in Figures 2 & 3, it

is important to ensure that the dial indicator

is perpendicular to the measured surface to

also avoid the cosine measurement error.

Figure 2. Horizontal scale alignment.

Figure 3. Vertical scale alignment.

-2- Digital Readout System

Location Selection

To select proper intallation locations:

1. Scales should be installed on flat machined

surfaces.

2. The opening of the scale must not be installed

in direct exposure to metal shavings, oil,

water, dust or other foreign objects as illus-

trated in Figure 4. The provided covers

should be installed.

Figure 4. Scale exposure.

3. In cases where machined flat surfaces are

not available, an mounting strip or strip

should be used to provide a flat surface for

the installation. The mounting strip, shown

in Figure 5, must be as short as possible to

provide a rigid surface.

Figure 5. Mounting strip.

4. A clearance of at least 1/8" between the scale

and scale cover is necessary (Figure 6).

1/8"

Scale Cover

Scale

Mounted

Scale Cover

Figure 6. Scale cover clearance.

5. All tapped screw holes must have at least

six threads to allow the screw to be firmly

secured. For the screw that is needed to

secure a heavy load, the tapped holes must

have at least eight threads. After tapping, the

holes must be deburred and cleaned.

6. All cables must be fixed, but also allow for

the maximum machine travel movements.

Figure 7 shows the recommended minimum

radius that should be used for bending the

scale cable.

R2 > 3"

R1 > 1-3/8"

Figure 7. Bending radii.

Digital Readout System -3-

7. Grounding is very important! Be sure recep-

ticle you plug into is grounded.

8. The horizontal and vertical alignment mea-

surement are taken at 20 mm away from the

scale ends, as shown in Figure 8.

Figure 8. Scale alignment measurements.

Installation

Requirements

1. Requirements for the mounting surface:

—Parallel mounting Figure 9 & 10: The par-

allelism of the two mounting surfaces must

be less than 0.1 mm of each other..

—Perpendicular mounting Figure 11: The

two mounting surfaces must be less than

0.1 mm out of square.

1" ± .004"

.004"

.002"

0" ± .008"

.709 ± .008"

Figure 9. Parallel mounting.

Figure 10. More parallel mounting.

-4- Digital Readout System

Figure 11. Perpendicular mounting.

2. Scale Alignment:

—For scale travel less than 37.4", the maxi-

mum parallel error between the scale and

the machine slide must be less than .04",

as shown in Figure 12.

—For scale travel longer than 37.4" mm

(Figure 13), the maximum alignment paral-

lelism error must be less than 0.06".

> .04"

> .06"

Figure 12. Alignment, less than 37.4" travel.

Figure 13. Alignment, more than 37.4" travel.

Digital Readout System -5-

3. Clearances between the reader head and scale body (Figure 14):

—The clearance between the reader head and scale body must be kept between 0.03” - .06".

—The reader head must be less than .001" parallel with the scale and can be set with feeler gauges

to allow the reader head to move unrestricted along the scale.

Scale Body

Reader Head

Figure 14. Milling machine table direction and reader head clearance.

Direction on Lathe Installation:

When travelling towards the headstock, the reading should be reduce when the cross slide tavels towards

the center, the reading should also reduce.

Note:

To give the best protection at all times, the scale should be mounted with the rubber seals facing down.

Where extreme exposure to metal shavings, coolant, dirt and compressed air are present, install the sup-

plied sheet metal cover guards for maximum protection.

Between the scale and the reader head is a blue strip which helps to maintain the correct distance between

the reader head and the scale. Remove this after installation.

Scale Reading Direction:

Before fitting the scale, ensure that the reading direction is correct. To change the direction of the scale,

turn the scale over.

Generally the scale reads in the correct direction with the label of the scale exposed.

Lathe Scale Installation:

Before fitting the scale, connect the "X" axis to the cross slide to allow the diameter function to work.

-6- Digital Readout System

Scale Setup

One of the easiest ways to set up an "X" scale on

a milling machine is to clamp two parallels to the

flat table surface that the table travels on and set

the scale on the parallels.

To set up the "X" axis scale:

1. Carefully drill and tap the holes (Figure 15) to

match the provided screws.

Figure 15. Drilling the screw holes.

2. Mount the cover over the scale and drill and

tap holes to secure it to the table, making

sure that there is 3mm of clearance between

the cover and the scale.

3. Mount the scale on the backing plate using

the pre-drilled holes (Figure 16), checking

that the scale is parallel with the machine

slide with a dial indicator.

4. When the scale is mounted, fix the reader

head to the saddle. If necessary, shim the

head to ensure that it is parallel and in-line

with the scales (Figure 17). NOTE: The blue

packing between the reader head and scale

allows for the correct clearance and holds the

reader head parallel to the scale.

Figure 16. Mounting scale on backing plate.

Figure 17. Completing "X" axis scale mounting.

To set up the "Y" axis scale:

1. If the surface is not machined, mount the

backing plate and use the set screws to

adjust the backing plate. Check with a dial

indicator (Figure 18), and adjust the backing

plate until the scale is square and perpen-

dicular to the machine slides.

Figure 18. Aligning the backing plate with a dial

indicator.

Digital Readout System -7-

2. Mount the bracket on the saddle (Figure 19),

to accept the reader head, making sure that

the reader head is in-line and parallel to the

scale. Secure the cable and leave enough

free cable to allow for the travel of the slide.

Figure 19. Mounting the bracket to the saddle.

Fitting the "Z" axis scale:

Before mounting the "Z" axis scale, ensure that it

will read "+" as you wind the table down, increas-

ing the distance from the table to the cutter.

1. The "Z" axis scale should be installed on the

side of the column, ensuring that the open

side of the scale is away from the direct metal

shavings and coolant and that the travel is

in the right direction, "–" towards the spindle

and "+" away from the spindle. The bracket

should be mounted on the knee (Figure 21),

and around the scale to allow for the cover to

protect the scale (Figure 22), where exces-

sive coolant and metal shavings are present.

3. After the scale is aligned to the axis, drill and

tap the saddle to suit the provided bracket

and mount the bracket as shown in Figure

20. Ensure the reader head is sitting correctly

so when it is attached it will be square and

parallel to the scale.

Figure 20. Mounting the provided bracket.

Figure 21. Bracket mounting location.

Figure 22. Mounted scale cover.

-8- Digital Readout System

Lathe Installation

To install readout on a lathe:

1. Mount the scale parallel and square to the

slide, shown in Figure 23. Testing for parallel

can be done with a dial indicator or a preci-

sion level.

Figure 23. Scale mounting location.

2. Select a flat surface that is suitable and clear

of the travelling parts of the lathe and mount

the cross slide scale, shown in Figure 24.

Figure 24. Flat surface for scale mounting.

3. The longitudal scale should be mounted on

the back of the lathe, (Figure 25) with the

open side of the scale facing down, and must

be parallel to the bed.

Figure 25. Longitudal scale mounting on lathe.

4. Mount the reader head to the saddle with the

provided brackets (Figure 26). Modification

may be required for some lathes. Mount cov-

ers over the slides as shown in Figure 27.

Figure 26. Proper reader head mounting with

provided brackets.

Figure 27. Slide cover mounting.

Digital Readout System -9-

-10- Digital Readout System

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