1. Measuring Principle
This instrument adopts the pole coordinates measuring principle. The precision rolling main shaft system and the high accuracy encoder generate the round graduation of the measured camshaft turn angle, the radial precision rolling guideway and the linear encoder scan in the radial direction the radial ascending stroke of the peach-shaped cam corresponding to each graduation on the peach-shaped cam profile surface，the measuring and value-evaluation software measures the ascending stroke error and phase angle error of this peach-shaped cam according to the theoretical lift table of the measured peach-shaped cam. (See the Sketch below.)

2. Specifications:

Measurable axial length of the camshaft ----------------------- 500mm
Radial measuring distance of the measuring head ------------ 60mm
Turn radius of the main shaft ------------------------------------ 70mm
Maximum permissible weight ----------------------------------- --- 30kg
Radial resolution of the measuring head ----------------------- 0.0001mm
Turn resolution of the main shaft -------------------------------- 0.0005°
Radial jumping of the lower center of the main shaft system --- 0.0015mm
Measurement repeatability ----- Ascending stroke 0.003mm, Angle 3′
Display value error -------------- Ascending stroke±0.003mm, Angle±5′

3. Configuration Constituents:
This instrument adopts vertical measurement structure, the measured camshaft is mounted between the main shaft and the upper center vertically to reduce the eccentric error of the camshaft caused by the gravity factor. (Configuration is as shown above.)
The main unit table: Adopts the granite table to ensure the highly precise installation of the main shaft system;
The main shaft system: Adopts high precision dense-ball rolling bearing system, imported HEIDENHAIN high precision encoder and the RORZE-SANYO motor for control;

The measuring column: Adopts granite base, imported precision straight-line guideway, rolling-ball guide screw, sealed linear encoder, andRORZE-SANYO motor for control;

The sliding seat of the radial measuring head: Adopts imported precision rolling guideway, imported high precision linear encoder, and RORZE-SANYO motor for control;

The computer system: Adopts China-made Lenovo computer system (15"LCD), and laser printer output;

The measuring software: Adopts special measuring and analyzing software for camshaft with complete independent intelligent property right.

4. Measuring Functions:
To measure the peach-shaped cam profile surface of each peach-shaped cam (ascending stroke error or radial error);

To measure the phase angle error between the peach-shaped cam;

To measure the speed curves and acceleration curves of each peach-shaped cam;

To measure the conical error of each peach-shaped cam profile surface;

To measure the radial jumping error of each shaft;

To measure the roundness error of each shaft;

To measure the phase inclination angle between the peach-shaped cam and the positioning key slot;

Functions of the measuring software:
Graphic/text interactive Chinese（English） measuring software on the WINDOWS operation platform;
Programmable parameter description file function suitable for automatic measurement of various kinds of camshafts;
Data processing function to correct eccentric errors caused by camshaft installation from either the adjacent shafts or the shafts at two ends;
The function of revising the contour line of the peach-shaped cam measured by the blade measuring head, the ball measuring head;

Multiple output formats for the measurement reports: the ascending stroke curves shown by rectangular coordinates and polar coordinates, the speed curves and acceleration curves or every peach-shaped cam, the superposed phase charts for every peach-shaped cam, the report sheets of the point-by-point ascending stroke data, etc.

5. Standard Constituents of the Instrument

6. Technical Documents Attached
Operation Manual (Including the e-version) 1 copy

Principle sketch and connection table of electrical equipment (Including the e-version) 1 copy
Documents along with the computer 1 copy

Packing list 1 copy

Quality Certificate 1 copy

List and drawings of the easy-damageable parts (Including the e-version) 1 copy

7. Operation Conditions
Temperature：20±5℃, Relative humidity ≥60%, Power supply: 220V, 50Hz

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