Automobile exhaust manifold air inlet connector installation hole drilling tool

Abstract

The invention discloses an automobile exhaust manifold air inlet connector installation hole drilling tool. A right-angled n-shaped beam and an air cylinder are fixed to the upper face of a horizontal bottom plate. A drill bit via hole is formed in the horizontal edge of the right-angled n-shaped beam. A first positioning pin and a second positioning pin are arranged on the lower surface of the horizontal edge of the right-angled n-shaped beam. The air cylinder is horizontally arranged. A lower wedge block is fixed to the end of a piston rod of the air cylinder. The inclined plane on the top of the lower wedge block adapts to the inclined plane of the bottom of an upper wedge block. The plane on the top face of the upper wedge block is fixed to the bottom face of a vertical lifting rod. The middle of the vertical lifting rod is in sliding fit with the via hole in the horizontal edge of the right-angled n-shaped beam. The right-angled n-shaped beam is installed on the upper face of the horizontal bottom plate. The air cylinder which is originally arranged vertically is adjusted to be arranged horizontally so that the air cylinder can push a jacking plate to achieve upward jacking through small pressure, and the pressure specification of the air cylinder is greatly reduced; in addition, the force of a drill bit directly acts on the upper wedge block during drilling, the jacking force and reliability of the air cylinder can be ensured, and the piston rod of the air cylinder is prevented from shaking violently.

Description

technical field [0001] The invention belongs to the field of automobile exhaust manifold processing, and relates to a tool for drilling installation holes of intake joints of automobile exhaust manifolds. Background technique [0002] The exhaust manifold is an important part of the car engine system, and there are some installation holes for the intake joints on it. In order to drill these intake joint installation holes, a horizontal bottom plate is currently set on the workbench of the vertical drilling machine, and the upper surface of the horizontal bottom plate is vertically provided with a portal beam and a large cylinder, wherein the piston of the large cylinder The rod is upwards, and the exhaust manifold to be drilled can be pressed against the bottom surface of the horizontal edge of the portal beam, so that the drill bit can go up and down to drill holes. [0003] The defect of existing structure is: in order to guarantee reliable jacking force, need to adopt th...

AI Technical Summary

Problems solved by technology

[0003] The defect of existing structure is: in order to guarantee reliable jacking force, need to adopt the cylinder of larger pressure specification, will increase the equipment cost of cylinder like this; The jacking force is vertically upward, and the two forces are on the same straight line, which may cause the piston rod of the cylinder to vibrate violently or even retract, thereby affecting the drilling accuracy

Images