Auxiliary device for improving rudder blade machining precision

Abstract

The invention discloses an auxiliary device for improving rudder blade machining precision. The auxiliary device comprises a cross plate; an extensible alignment device is fixedly connected to the topof the cross plate; a box body is fixedly installed on the extensible alignment device; a rudder blade taper hole machining device is fixedly connected to the top of the box body; an air cylinder isfixedly connected to the inner bottom of the box body; a sliding rod is fixedly connected to the top of the air cylinder; a baffle is fixedly connected to the top of the sliding rod; and extensible rods are slidably connected to four sides of the outer wall of the box body. According to the device, through the mutual matching effect of the box body, the extensible rods, extrusion plates, the sliding rod, a sliding block, fixed plates, compression springs and the air cylinder, the air cylinder push up the sliding rod, the sliding block moves along the sliding rod, then the extensible rods drivethe extrusion plates to move outwards, the extrusion plates clamp the inner walls of rudder blades, inner holes of the rudder blades are rapidly aligned, the extensible alignment device is always located in the center position, and subsequent machining of rudder blade taper holes is facilitated.

Description

technical field [0001] The invention relates to the field of rudder blade processing devices, in particular to an auxiliary device for improving the processing precision of rudder blades. Background technique [0002] The rudder blade is a very important part to control the course of the ship. The rudder blade has an upper taper hole and a lower taper hole. It is suspended on the rudder arm at the tail of the ship through a pin with a taper. The rudder arm supports the entire rudder blade. , the steering gear is the steering mechanism of the ship's rudder blade. It controls the rudder shaft, and the rudder shaft controls the rudder blade. The steering gear can make the rudder blade swing left and right, thereby controlling the direction of the ship's navigation. At present, large-scale rudder blade taper holes are generally processed by large-scale numerical control. On the floor boring machine, because the workpiece is heavy and large, only a small part of the rudder blade ...

AI Technical Summary

Problems solved by technology

[0002] The rudder blade is a very important part to control the course of the ship. The rudder blade has an upper taper hole and a lower taper hole. It is suspended on the rudder arm at the tail of the ship through a pin with a taper. The rudder arm supports the entire rudder blade. , the steering gear is the steering mechanism of the ship's rudder blade. It controls the rudder shaft, and the rudder shaft controls the rudder blade. The steering gear can make the rudder blade swing left and right, thereby controlling the direction of the ship's navigation. At present, large-scale rudder blade taper holes are generally processed by large-scale numerical control. On the floor boring machine, because the workpiece is heavy and large, only a small part of the rudder blade is placed on the machine table, and most of the rest is placed on the ground workbench. After alignment and clamping, it is processed. How to accurately and quickly process the inner hole? The alignment will directly affect the processing speed and processing accuracy

[0003] In order to quickly align the center position during inner hole machining, Chinese Utility Model Patent Publication No. CN202571858U discloses an auxiliary device for the outer circle of a cylindrical car. The device uses a cross support and a screw seat is installed on the top of the cross support. Screws are used to adjust and align. However, this device uses adjustment screws and manual adjustment, so it cannot quickly align the holes. It needs to be corrected with a dial indicator in the later stage. The operation intensity is high and the speed is low, and it is not suitable for larger rudders. Machining and Alignment of Blade Cone Hole

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