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GEAR MM 02 Retrofit for Gear Tester Instruments

Gear MM 02 is a program that, equipped with aHardware comprising two transducers linear positionand a Detecting Head analogical, responsive to movement in the direction allows the reconditioning of equipment for the control gear.The machine is completed by a calculation unit and a printer for issuing certificates testing.

SOFTWARE DESCRIPTION GEAR MM 02

This software allows you to perform control of the involute of the side of a gear cylindrical straight or helical teeth.

GEAR MM 02 PROGRAM

GEAR NOT SAVED

MEASUREMENT PROCEDURE

Select New from the menù· File· Select the menu FILE -> New· Enter the parameters of the teeth to be checked in the mirror in the Figure.

Where: alpha is the normal pressure angle expressed in degrees, minutes and seconds or decimal degrees with the helix angle beta is measured on the pitch circle in the first and second degrees, or degrees with decimal Mod. Is the normal module expressed in mm.Teeth Z is the number of teeth Æ probe is the sensor diameter expressed in mm. Tilt propeller declares the helix direction (left or right), if the side was the right choice is irrelevant Cor X is the correction factor involute, if set to 0 the teeth are normalized. The graph representing the error of the involute can be expressed in function of the diameter, the rolling stroke or angle of rolling; the "DEVELOPMENT PROFILE" indicates which setting we want. The check box "SUGGEST POSITION. FOR DIFFERENT ENTATURE "will, for clarity, shown in paragraph 3.2 Confirmed the configuration window will appear detection shown in Fig.

WINDOW OF DETECTION

1

2

3 4

5

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WINDOW OF DETECTION

3.1.1 WINDOW DETECTION1. Reading Tool transducer analog, displays the position of the sensor relative to its rest position, the read range and 'of + - 0.5mm

2. Reading Tool transducer analog, displays the position of the sensor relative to the position of the relative zero point (the relative zero is set by pressing the console Reset Probe) and the read range 'of + - 0.05mm

3. Save the graphic: Pressing the button for the desired box, or using the keyboard by pressing the key sequence Num + letter, where Number is the key from 1 to 4 and letter S is for the left side, and D for the right side .

4. Area buttons, includes:- F1 Reset probe, zero translator for measurement- F2 Clear Graf to perform cleaning of the graphics from any markings not desired that appear following the movement of the axes.- F6 Db Setup, brings the Y axis of the machine tangent to the base circle- F7 Evolv / Propeller button to change the measurement from propeller involute- F9 Home starts homing procedure.- Exit F12, causes the disappearance of the detection window.

5. Set limits A and B (the area of acquisition points): bring the machine axes in position (head-foot / bottom-up) and press A or B.

6. Viewer coordinate axes X - Z - W - transducer

7. Area graphical display of the traces

3.3.1 Select Parameti sheet from the Edit menu3.3.2 appear the window of Fig 4. comprising:Fig.4 Parameters sheet sizeThe parameters a) and b) which define the end of the scan on which to compute the error.The parameters c) and d) that set the display scale of the error in graphical form.The parameters e) and f) that set the accuracy classes prescribed, (DIN 3962)Header entries g)The selection of the camber h)- Box is not enabled: errors are calculated with respect to a line that bestapproximates the trend of the graph.- Box enabled: If the parameters) are set to zero, ghee errors will be countedwith respect to an arc of a circle which best approximates the trend of the graph; if theparameters i) is assigned a different value than errors will be countedto a circle arc, whose arrow and 'fixed by the said parameter.

MODIFY OF LIMITS LEAF AND COMPLETING SCHEDULE

ac

b gd

hef

MODIFY OF PARAMETERS DISPLAY AND EVALUATION

3.4 RELEASE OF THE CERTIFICATESelect the Print option from the menu 'File.

3.5 SAVE GEARSelect the Save or Save As from the menù File, then enter the name that identifies the gear. All parameters and the graph will be stored.

3.6 SAVING IN IMAGE FORMATSelect Save PCX image menù File, then enter the name identifies the gear, you will get a bitmap file format PCX representing the test certificate.

3.7 MODIFY OF PARAMETERS DISPLAY AND EVALUATIONSelect the item from the menu edit -> parameters graphic, the window:

The window is divided into 4 areas:1. Background: Change the background of the graphic area of the certificate.Could choose between modes· None = white background· Dots = small crosses placed at intervals of 5 mm· Squared = millimeter background 2. Graphic: includes four itemswhich can be selected independently

· Line of best-fit, if unchecked, will appear in the graphic representation of the error median line that interpolates the track.· Area that contains the track, if checked, the graphical representation of the error appear a parallelogram enclosing the track.· Display only the diagram K, if checked in the presence of a prescription K, not it displays the line of best fit, nor the area surrounding the track but only the area of tolerance entered as "K diagram"· Automatic calculation scale Y, if unchecked, is allowed to change the vertical scale of the graph (changing the limit sheet and compilation prospectus).3. Evaluation Criteria evolving: it can take the following properties· No data assessment is extrapolated from the charts of the involute· Do not display quality, they are calculated and displayed the characteristic errors of the involute, but does not report the corresponding quality classes· DIN 3962, are calculated and displayed the characteristic errors of the involute, andThey are indicated classes of quality corresponding to DIN 3962· ISO 1328-1, are calculated and displayed the characteristic errors of the involute, andThey are given the quality classes according to the corresponding ISO 1328-14. Evaluation Criteria propeller: you can take the following properties· No data assessment is extrapolated from the graphs propeller· Do not display quality, they are calculated and displayed errors characteristic of the propeller, but does not report the corresponding quality classes· DIN 3962, are calculated and displayed errors characteristic of 'propeller, and indicating the quality class corresponding to DIN 3962· ISO 1328-1, are calculated and displayed errors characteristic of propeller, and indicating the corresponding quality classes according to ISO 1328-1

MODIFY OF LIMITS LEAF AND COMPLETING SCHEDULE

MARKING OF THE POSITIONS ALONG THE INVOLUTE AND PROPELLER

Selecting the menu item Edit -> Markingwindow will appear in the figure.

It allows you to enter comments (labels) along the graph of the evolving and propeller set positions. Regarding the portion of the involute position can be expressed in diameters, rolling stroke or angles of rolling as a function of choice proposal in the "Marking evolving".

3.9 AREA OF TOLERANCE (DIAGRAM K)

Thanks to the special editor you can draw an area for the demarcation of prescribed tolerance, which is then superimposed on the graphic of error. To access this feature, select the Edit -> Editor area of tolerance.Enter the characteristic points (nodes) of the graph by typing coordinate values in the X Y and then clicking the button "Add Node".

After entering all the points, connect nodes with lines or circles to get an enclosed area. The positioning of the tolerance on the graph is automatically, if you want to track the passage of a particular point of the K, enter these coordinates by pressing the "Add Reference". If you want eventually the specular area , press "Turn mirror"; typically the areas of the right and left flanks are each other specular.

· Choose a tooth to be controlled, then input the stylus compartment.· Rotate the gear up to bring in contact the tooth and the head continue to obtain a preload of the head of about 0.1 mm.· Switch the display head in its operation by pressing F2.· Turn the head to the end zone involute (foot side) using the horizontal movement of the combined rotary and press the A button to set the first limit profile.Turn the head until the area involute (side head) and press the B button to set the second limit profile.Vary the vertical scan of the track, the assigned limits are marked by two horizontal lines in green area View stored M.Switch mode operation profile by pressing the F7 key.Scan the profile, the View stored graphics of error will appear in K.The track will be stored in the sheet of pre-measure.Repeat the previous steps for the remaining profiles (no need to assign new limits at least for all profiles of this same high).Switch the vehicle is running in next mode by pressing the F8 key.The operations for the measurement of the flank, are similar to the preceding, except for the reset positions that can be assigned at any point, and for the limits which are positioned on the ends of the side vertical band high and low.

MEASUREMENT PROCEDURE

SET UP MACHINE

Enter in the "CMM SETUP"- Enter the value "zero" o�set Zero (mm) in the control LVDT- Place the LVDT until an equilibrium position indicated by the red lines in the indicators of the measurement window. (The small numerical di�erence between the electronic and the mechanical zero is correggge entering the value number detected in the square indicated.- Install the master cylinder in the car with his hard base (diam. 45 mm)- Make the zero of the transducer while folding the disc according to the lineal and bring into contact with the probe for resettingthe master cylinder; done that block the LVDT.- Install drive gear with its master disc base (diameter 187.4 mm)- Make measuring the master checking the outputs of the pro�les and f.dx f.sx must be mirrored.- If they are not the same need to make a correction in the "CCM SETUP" line in the O�set zero mm (XZB) in line X for the pro�le. eg. value x output tooth side dx = 43.8 x value output tooth side sx = 49.9 (43.8 + 49.9) = 93.7 / 2 = 46,85 mm correction value is = 49, 9 to 46.85 = 3.05 mm to be added or subtracted in the window (O�set zero mm (XZB) rigaoZ O�set is zero mm = 1 mm- All other values are not to be changed.

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