Drilling fixture for eccentric shaft

Abstract

The invention relates to a drilling fixture for an eccentric shaft. A rotary motor is arranged in a base plate; a rotating shaft of the rotary motor penetrates out of the base plate and is connected with a rotating plate; a guide rail is arranged on the rotating plate; two slidable sliding blocks are arranged on the guide rail; positioning blocks are arranged on the sliding blocks; clamping slots are formed in the positioning blocks, and are used for accommodating the eccentric shaft; support air cylinders are arranged in the sliding blocks; electromagnet sheets are arranged at the upper ends of the support air cylinders, and are arranged in the clamping slots; an upper pressing mechanism is also arranged on the rotating plate; a support positioned on the rotating plate is arranged on one side of each positioning block; pressing air cylinders are mounted at the upper ends of the supports; pressing plates are arranged at the front ends of the pressing air cylinders; the pressing plates point to the clamping slots. According to the drilling fixture disclosed by the invention, two workpieces can be clamped once, and then two ends of each workpiece are drilled; because a positioning reference of the workpieces is invariable, the machining precision of the two workpieces are identical; moreover, the machining precision is high, the operation is convenient and quick, massive production machining requirements of enterprises can be met, and the drilling fixture has higher practicability.

Description

technical field [0001] The invention relates to a drilling jig, in particular to a drilling jig for an eccentric shaft. Background technique [0002] The eccentric shaft is generally fixed on the rotating shaft of the motor through the eccentric hole. When the motor is started, it performs a cam motion, so it is widely used in automobiles, engines, pumps, etc. In the prior art, it is often necessary to drill the two ends of the eccentric shaft, and the center lines of the two shafts of the eccentric shaft do not coincide. The current processing method is to drill one end first, and then replace the workpiece. Drilling is performed after clamping in one direction. After long-term use, many shortcomings are found: long positioning time of the workpiece, low work efficiency, cumbersome operation process, only one workpiece needs to be processed at a time, and drilling The processing accuracy is not high, which cannot meet the actual production and processing needs. Contents ...

AI Technical Summary

Problems solved by technology

In the prior art, it is often necessary to drill the two ends of the eccentric shaft, and the center lines of the two shafts of the eccentric shaft do not coincide. The current processing method is to drill one end first, and then replace the workpiece. Drilling is performed after clamping in one direction. After long-term use, many shortcomings are found: long positioning time of the workpiece, low work efficiency, cumbersome operation process, only one workpiece needs to be processed at a time, and drilling The processing accuracy is not high, which cannot meet the actual production and processing needs

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