Double-tip positioning mechanism with bearing and positioning method thereof

Abstract

The invention discloses a double-tip positioning mechanism with a bearing. The double-tip positioning mechanism includes a gear shaft front frame center positioning mechanism and a gear shaft tailstock center positioning mechanism, the front end and the rear end of the gear shaft are positioned by the two positioning mechanisms to realize the axial positioning of the gear shaft. The gear shaft front frame center positioning mechanism comprises a mandrel, a spring is arranged at the tail end in the mandrel hole, a dustproof guide sleeve is arranged at the front end in the mandrel hole, the other end of the spring is connected with a center, and the center penetrates through the dustproof guide sleeve and extends out of the mandrel hole; a bearing inner ring is arranged on the periphery of the mandrel, the bearing inner ring is matched with the outer circle of the bearing through a bearing ball, a shell is arranged on the periphery of the outer circle of the bearing, and the mechanism issimple in structure and accurate in positioning. The invention discloses a positioning method of the double-tip positioning mechanism with the bearing, thereby being simple in positioning operation and accurate in positioning.

Description

technical field [0001] The invention belongs to the field of gear shaft positioning, and relates to a double-top positioning mechanism with bearings and a positioning method thereof. Background technique [0002] The actual production of gear shafts often involves the use of machining centers to drill holes and mill slots at the journal. Double tops are often used to tighten the axial position, and the double tops are fixed tops. Between the top of the headstock and the base of the fixture, and between the top of the tailstock and the tailstock, they cannot rotate relative to each other. To limit the angular rotation of the shaft. When the double tops are tightened and the pair of tooth gauges are inserted into the tooth grooves, when the workpiece is subjected to external force, it will overcome the sliding friction between the top holes and the tops and rotate. coefficients and other factors. Similarly, the force exerted by the surface of the workpiece on the tooth gaug...

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Problems solved by technology

Similarly, the force exerted on the surface of the workpiece will cause the deformation of the tooth gauge, which will have a great impact on the stability and machining accuracy of the machining process.

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