发明名称 |
MEASURING APPARATUS FOR LEAD ERROR OF SCREWTYPE CUTTING TOOL BY NONCONTACTING TYPE OPTICAL FILLER |
摘要 |
PURPOSE:To improve accuracy and to measure the lead errors of a screw type cutting tool continuously at a real time by using a noncontacting type optical detector. CONSTITUTION:A gear hob 7 to be measured is rotated around a shaft 7a by a driving arm 9. The angle L of rotation is detected by a rotary encoder 13. A moving board 4 moves in the direction of A along a fixing board 1 at a sending speed equal to the leading pitch of a gear 7 in accordance with the rotation of the shaft 7a and the moving distance E is detected by an interference type measuring instrument consisting of a laser source 15, three mirror sets 20-22 and a photodetector 26. The position Ve of a cutting tooth of a gear 7 is detected by a detector 5 for the rotational angle of the cutting tooth from the reflected light of the cutting tooth. The extent of movement lL of a flank image is detected by an optical filler mechanism 6 from the quantity of light of the projected image of the screw. A lead error epsilon is obtained by finding a sending error DELTAE=E-L and adding the value of lL in every Ve input, i.e. epsilon-DELTAE to the found sending error. |
申请公布号 |
JPS5837503(A) |
申请公布日期 |
1983.03.04 |
申请号 |
JP19810135997 |
申请日期 |
1981.08.29 |
申请人 |
TOUKIYOU KOGYO DAIGAKU |
发明人 |
YOSHIMOTO ISAMU;MARUYAMA KAZUO |
分类号 |
G01B11/14;B23G1/44;G01B11/24;G01B21/20 |
主分类号 |
G01B11/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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