Method for grinding vehicle frame by means of grit blasting

Abstract

The invention discloses a method for grinding a vehicle frame by means of grit blasting. The method comprises the following steps that (1) a first plug, a second plug, a third plug, an elastic plugging piece and a plugging tube are mounted; (2) the vehicle frame provided with the first plug, the second plug, the third plug, the elastic plugging piece and the plugging tube is placed into a grit blasting chamber of a grit blasting device, and grit blasting is conducted on the vehicle frame through the grit blasting device; (3) the vehicle frame is taken out; (4) the first plug, the second plug, the third plug, the elastic plugging piece and the plugging tube are detached; and (5) the vehicle frame is cleaned. By means of the method for grinding the vehicle frame by means of grit blasting, the quality of the vehicle frame can be improved, grit waste in the grit blasting process can be reduced, and damage to accessories of the vehicle frame can be reduced.

Description

technical field [0001] The invention relates to a method for grinding a vehicle frame by sandblasting. Background technique [0002] The traditional manufacturing process of the frame is generally: first connect the head tube, upper tube, down tube, seat tube, upper fork, lower fork and dropout; then clean the frame, and finally polish the frame manually , using this process, not only the efficiency is low, but also the grinding is not uniform enough, and some places may be missed due to the negligence of the operator. [0003] Later, someone adopted the process of first connecting the head tube, upper tube, down tube, seat tube, upper fork, lower fork and dropout; then cleaning the frame and finally sandblasting it. The disadvantages of using this technique are: [0004] (1) After cleaning, there will be cleaning fluid left on the frame. During the sandblasting process, the sand will stick to the frame, and it is difficult to dispose of the sand stuck to the frame. [00...

AI Technical Summary

Problems solved by technology

[0004] (1) After cleaning, there will be cleaning fluid left on the frame. During the sandblasting process, the sand will stick to the frame, and it is difficult to dispose of the sand stuck to the frame.

[0005] (2) During the sandblasting process, due to the empty space in the frame, sand can easily enter from the inner holes or through holes of the head tube, seat tube, bottom bracket, upper tube, down tube, upper fork and lower fork In this way, not only will the sand be wasted, but also the sand will stick to the surface of the frame during the paint baking process, which will affect the quality of the frame. At the same time, when installing accessories on the frame, due to the sand remaining, will damage accessories

[0006] In order to solve the above technical problems, the inventor installed blocking pieces at each inner hole or through hole to prevent sand from entering the vehicle frame during the sandblasting process. However, due to the inconsistency of the inner holes or through holes, some Blocking pieces are easy to fall, affecting the quality of the frame

Images