Precise unidirectional scale division positioning device

• Main Authors: JIN QIAN, ZHANG SIDI, YANG ZHENGYU
• Format: Patent
• Language: Chinese; English
• Published: 17.11.2010
• Subjects: COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOTDIRECTED TO A PARTICULAR RESULT; DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g.ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OFPARTICULAR DETAILS OR COMPONENTS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; PERFORMING OPERATIONS; TRANSPORTING

A precise unidirectional scale division positioning device comprises a ratchet shaft (1), a transmission unit, a pawl (9), a detection unit, a casing (6) and a compression spring (10); the ratchet shaft (1) is mounted on the casing (6) by both-end supporting manner, the detection unit is mounted at the tail of the ratchet shaft (1), the transmission unit is mounted in the middle of the ratchet shaft (1), the detection unit is used for detecting the scale division in-position signal, the ratchet shaft (1) is driven by the transmission unit to operate, on the radial outer side of a ratchet on the head part of the ratchet shaft (1), the pawl (9) is mounted on the casing (6) by a revolving pin (11), the non-ratchet side of the pawl (9) is provided with the compression spring (10), one end of the compression spring is connected with a base hole on the pawl (9) and the other end thereof is mounted on the casing (6). The precise unidirectional scale division positioning device adopts the combination of the unidirect