Frame semi-body assembly machining method for motorcycle sample

Abstract

The invention discloses a frame semi-body assembly machining method for a motorcycle sample. The machining method comprises the following steps: first separately finishing the machining of a front down tube, a front down tube horizontal connecting sleeve, a flat fork shaft installing plate, a lower inclined angle reinforcing block and a reinforcing block accumulator installing lug; finishing the machining of a rear down tube and two down tube covering parts; finishing the machining of a top tube, two top tube accumulator installing lugs, a top tube covering part installing lug and an upper inclined angle reinforcing block; finishing the machining of a pedal upper installing tube, a pedal lower installing tube, a pedal installing tube horizontal connecting sleeve, a rear inclined angle reinforcing block and a rear pedal hook rod; positioning the aforementioned components by a welding fixture, then finishing welding at one time so as to connect all the components and obtaining the frame semi-body assembly for the motorcycle sample. The machining method of the invention can simplify welding and assembling procedures, and is simple to implement and low in cost, and can facilitate the trial-production and adjustment of the motorcycle sample.

Description

technical field [0001] The invention relates to the field of motorcycle frame processing, in particular to a method for combined processing of frame halves for a rider bike sample. Background technique [0002] Among the motorcycles, riding motorcycles, as a classic model, have the advantages of high power and good long-distance driving performance, and are deeply loved by consumers. At the same time, in the process of motorcycle research and development, it is often necessary to develop and design sample products first, and then conduct tests to ensure the reliability and practicability of the final product. [0003] In a new riding motorcycle model LF-125-2C, the frame body is composed of a head tube assembly and two frame halves connected to the left and right sides behind the head tube assembly. Among them, the frame half-body combined structure (see figure 1 ), which includes a front down tube that is inclined forward and upward as a whole, and the front end of the fr...

AI Technical Summary

Problems solved by technology

Like this, there are many working procedures, complicated operation, and the defects that the cost is too high

Especially because sample production often needs to adjust some local small structures such as cover mounting lugs, in this way, welding fixtures with fixed structures are used for each adjustment, which greatly increases the cost and restricts the sample. Expansion of research and development

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