Universal internal rotation machine device for engineering wheels and machining method thereof

Abstract

The invention provides a universal internal rotation machine device for engineering wheels. The universal internal rotation machine device for engineering wheels comprises a frame, a sliding block, a spinning roller mechanism, a pressing mechanism and a rotating platform are arranged in the frame, and the upper end of the sliding block is connected with an axial feeding mechanism. The lower end of the sliding block is connected with the spinning roller mechanism, and a spinning roller is arranged at the bottom of the spinning roller mechanism. A mold is fixed on the rotating platform, and the rotating platform is connected with a transmission mechanism through a main shaft. The pressing mechanism is connected with a pressing cylinder, and a workpiece is fixed in the mold through the pressing mechanism. The spinning roller mechanism is further connected with a radial feeding mechanism, and the axial feeding mechanism and the radial feeding mechanism are matched with an automatic control numerical control system to achieve feeding machining according to a product curve. The invention further provides a method for machining wheels through the universal internal rotation machine device for engineering wheels. The method specifically comprises the steps of mold fixing, feeding, spinning roller internal spinning, returning and workpiece taking and the like, unequal-thickness extension machining on engineering wheels can be completed, and the universal internal rotation machine device can be widely applied to the field of machining of rims of engineering wheels.

Description

technical field [0001] The invention relates to the technical field of engineering wheel processing, in particular to a general internal rotation machine device for engineering wheels and a method for processing engineering wheels by using the internal rotation machine device. Background technique [0002] The engineering wheel is an important part of the engineering vehicle, and its core component is the inner wheel rim. The performance of the wheel rim directly determines whether the engineering vehicle is safe or not. The rim of the existing engineering vehicle is made of high-strength steel plate, which needs to be prepared through blanking, reeling, welding, rounding, spinning and machining. [0003] At present, the processing technology of engineering wheels is relatively mature. For example, the patent CN102555667A discloses a manufacturing process of an engineering vehicle integral rim and its rim body, including the rim body. The reel, the pressed material blank, t...

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Problems solved by technology

[0003] At present, the processing technology of engineering wheels is relatively mature. For example, the patent CN102555667A discloses a manufacturing process of an engineering vehicle integral rim and its rim body, including the rim body. The reel, the pressed material blank, the pressed groove part is made into the groove ring, and the pressed inner rim part is made into the rim body. This kind of rim is easy to process and low in manufacturing cost, but the thickness is uniform, the weight is heavy, and the bearing strength is not high.

Another example is the patent No. "201310229679.7" which discloses a car rim and its spinning process. The external spinning process is used to solve the problems of heavy weight of the existing car rim, high driving resistance and insufficient strength of the car rim, but the use of The structure of the traditional spinning device is complex, and the external spinning process is difficult to control, and the product size accuracy is low. The rim size that meets the requirements must be obtained through post-processing, which increases the processing cost, and the use of materials is not economical enough.

[0004] According to relevant information, although the processing technology of engineering wheels is relatively mature at present, and the processing methods are also various, but for the shaping and size control of engineering wheel rim structure, the more advanced technology is still through high temperature molding or external spinning The production cost of high-temperature molding is high, and the investment in equipment is large. Only the outline of the blank can be processed, and the amount of machining in the subsequent process is relatively large; the external spinning mold is used to shape the periphery of the blank of the wheel rim through the spinning mold to form unequal thickness. However, due to the complex curve of the peripheral structure of the wheel rim, there is always a certain deviation between the degree of spinning fit and the theoretical design value, so there will still be a large margin in the height and diameter directions of the blank after external spinning The diameter, inner diameter and height all need to be finished in the subsequent machining process to obtain the precise size required by the rim. The disadvantage of this process is that it will waste materials, and at the same time, the processing cost is high and the production efficiency needs to be improved.

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