A flip drilling jig

Abstract

The invention discloses a high-precision and high-efficiency eversible drilling clamp. The high-precision and high-efficiency eversible drilling clamp comprises a rotary support serving as a main body support component, and the rotary support is used for being fixed to a workbench of machining equipment and installing other assemblies. An end face positioning and limiting plate is arranged on a rotating disk through screws, a cylindrical positioning pin is arranged in the center of the rotating disk, rhombic positioning pins are arranged on the rotating disk according to the requirement of preset distances, end face positioning pins are distributed on the left side portion of the rotating disk, replaceable drill bushings are distributed on the right side portion of the rotating disk according to the structure of machining holes, the two replaceable drill bushings are arranged up and down, and a compressing assembly is arranged on the end portion of the cylindrical positioning pin. The rotating disk is positioned through keys and clamped through screws to be connected with a collection disk with indexing holes, the collection disk with the indexing holes is connected with a collection disk of the rotary support, and a compressing handle is arranged on the right side of the rotary support and connected with a locking mechanism in an inner cavity of the rotary support. By rotating the compressing handle, a positioning pin of the locking mechanism extends and retracts, rotation of the collection disk with the indexing holes is achieved, and machining of indexing holes in circumference is completed.

Description

technical field [0001] The invention belongs to the technical field of mechanical processing, and relates to a flip drilling jig. Background technique [0002] The governor is a mechanism for automatically adjusting the oil volume of a certain type of high-power diesel engine. Its main functions are: [0003] (1) It is to limit the maximum speed of the diesel engine to prevent the occurrence of "speeding" and cause the bearing bush to burn or the connecting rod to break and other parts to be damaged; [0004] (2) It is to ensure the stable operation of the diesel engine when idling at low speed. [0005] Among them, the governor body is the key part of the speed regulating mechanism, which belongs to the aluminum alloy thin-walled shell part, with high precision and large deformation, especially the lever installation hole of the governor body brings certain difficulties to the processing. [0006] For the design requirements of the lever installation hole of the governor ...

AI Technical Summary

Problems solved by technology

[0010] (1) It is completely dependent on the rotation accuracy of the worktable of the equipment to ensure the coaxiality of the holes at both ends. When the rotation error of the worktable is generated, the instability of the product processing accuracy is caused. The preliminary statistics of the coaxiality are as high as 50% %;

[0011] (2) The rigidity of the combined fixture is poor, and the workpiece is deformed during the processing process, which may easily cause the verticality of the center of the φ10 hole to the reference center line of the bearing hole to be out of tolerance;

[0012] (3) is unable to meet the mass production requirements

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