Large size cylinder body is sealed groovy deepness detects tool

Close solid bolt 2.

Measure half cob 3.

Dial gauge 4.

Chuck 5.

Small handle 6.

Standard gauge block pursues 2 use standard piece to adjust dial gauge 0 values sketch map pursues 3 measure sketch map to be in machining process, can encounter all sorts of oil cylinder kind the treatment of the spare parts and detect problem. Because oil cylinder and piston cooperate precision tall and have sealing demand, the annular and sealed chamfer that if the graph is shown 1 times,adds on oil cylinder wall normally, in order to put sealing ring. The measurement of sealed chamfer can use general diameter existing special measuring tool; But big to the sealed chamfer diameter of large size oil cylinder, precision it is size of tall, chamfer, more difficult to measure, if continue to use is measured with measure only, still need those who provide relevant measure to measure lever and micrometer. Such very wasteful, more incommensurate sheet small lot production. In the light of this besides made by oneself dial gauge bottom land measures a tool. Its make a principle is flexible constant the diameter is measured measure for deepness, through numerating dial gauge compresses a quantity to detect public errand of bottom land deepness, make sure large size is sealed thereby treatment precision requirement of groove. 1 if the graph is shown 2 times,measure a principle, measure a tool by dial gauge 3, measure half cob 2, close solid bolt 1, chuck 4 reach 5 composition of small handle. Before using, calculate above all a bottom land radius is basic the difference of basic measure R is worth radius of the aperture inside dimension R and oil cylinder, namely in H=R-r type: H is sealed chamfer deepness basic measure. Recycle makes a chamfer deeply the gauge block of the standard that open slot of H, if pursue 2 medium spare partses 6. Will measure a tool to be put on standard gauge block next, adjust the installation height of dial gauge according to dimension, touch dial gauge head the bottom land of gauge block twists 3 of bolt of close close solid, immediately adjusts dial gauge finger to arrive null, if pursue,2 are shown. Can measure a tool to undertake detecting with what already had adjusted right now sealed chamfer. When measuring measure half cob 2 put inside the crock sealed chamfer on two shoulders, look for a heart automatically through half cob, make the watch head of dial gauge perpendicular point to surface of sealed bottom land, its method is shown 3 times like the graph. The numerical value of null of deviate of dial gauge finger is profound corresponding common difference is worth groove, gauge the depth that gives sealed slot and its common difference well and truly so, make sure production gives eligible product. 2 application citing is like the part that the graph shows 1 times, bottom land diameter is 392.

3+0.

11, cylinder body internal diameter is 380-0.

062+0.

119mm. Criterion R=196.

15+0.

055mm, r=190+0.

031+0.

0595mm. Because of this H=196.

15-190=6.

Fs=+0 of the deviation on 15mm.

055-0.

031=+0.

024 deviation Fx=0-0.

059=-0.

059 chamfer measure quantity size greatly for 6.

15-0.

0595+0.

024mm, namely groove deeply 6.

15-0.

0595+0.

Inside 024mm limits when, with respect to requirement of dimension of diameter of OK and contented bottom land. 3 notes batch is made below manufacturing condition when measuring half cob, should choose be out of shape the tool rolled steel of caustic of small, wear-resisting expects, wait like T7, T8, become through the grinding after the surface quenchs. Chuck uses brass data. When choosing dial gauge, dial gauge is right 0 hind it is certain to should notice to assure to have reduce an amount. 4 last words measure a tool this kind to pass use effect good, it has a structure simple, make easy, operation convenient, measure wait for a characteristic reliably, cylinder body of OK and contented large size kind the demand that sealed chamfer deepness gauges spare parts wall. CNC Milling