The most efficient ball valve assembly machine, understand you are the master! Grinding machine is a lathe for parts production, the common is the production of ball valve assembly machine, but there will be some ball valve assembly machine problems in the production process. Common ball valve assembly machine defects and elimination methods, Xiaobian has sorted out for you:

First, the parts are not round

Cause of occurrence

(1) The guide wheel is not rounded

(2) The number of ball valve assembly machine is less or the ellipse of the previous process is too large.

(3) The grinding wheel is dull

(4) The amount of grinding is too large or the amount of cutting is too large

Elimination method

(1) Re-repair the guide wheel, until the guide wheel is stopped (generally repaired to no intermittent sound stop)

(2) Appropriately increase the number of ball valve assembly machine

(3) Repair the grinding wheel

(4) Reduce the amount of grinding and heavy tool speed

Two, the parts have edges (polygons)

Cause of occurrence

(1) The center of the parts is not high enough

(2) The axial thrust of the part is too large, so that the part presses the baffle pin and cannot rotate evenly

(3) The grinding wheel is not balanced

(4) The part center is too high

Elimination method

(1) Appropriately increase the center height of the parts

(2) Reduce the inclination of the grinder guide wheel to 0.5° or 0.25°. If the assumption can not be solved, it is necessary to check the balance of the fulcrum

(3) Balance grinding wheel

(4) Properly reduce the center height of the parts

3. Vibration marks on the surface of parts (that is, fish colors and straight white lines appear on the surface of parts)

Cause of occurrence

(1) The machine vibration caused by the uneven surface of the grinding wheel

(2) The high center of the part makes the part beat

(3) The grinding wheel is dull or the grinding wheel surface is too light

(4) The guide wheel rotates too fast

Elimination method

(1) Carefully balance the grinding wheel

(2) Properly reduce the part center

(3) Appropriately increase the grinding wheel dressing speed

(4) Properly reduce the guide speed

Four, the parts have taper

Cause of occurrence

(1) The front part is small due to too much low bus bar of the guide wheel of the front guide plate or the direction inclination plane of the guide wheel of the front guide plate

(2) The rear part is small due to the low surface of the rear guide plate and the guide wheel bus or the tilt of the rear guide wheel

(3) Taper occurs at the front or back of the part due to the following reasons

① The grinding wheel dressing is not correct, and it has taper itself

② The surface of the grinding wheel and guide wheel is worn

Elimination method

(1) Properly move the front guide plate and adjust the front guide plate parallel to the guide wheel bus

(2) The guide surface of the adjusted guide plate is parallel to the guide wheel bus and in a line.

① Adjust the Angle grinding wheel in the modification according to the direction of the taper of the part

② Correct or replace the grinding wheel and guide wheel

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