Accurate mandrel counterboring device for cylindrical forge piece
A cylindrical and mandrel technology, applied in forging/pressing/hammer devices, forging/pressing/hammering machinery, manufacturing tools, etc., can solve the problems of inaccurately forming cylindrical forgings, etc., to improve product quality, Improve product accuracy and production efficiency, improve the effect of hydrostatic stress
Active Publication Date: 2016-03-30
山西成业锻造股份有限公司
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Problems solved by technology
[0003] The purpose of the present invention is to overcome the shortcomings of the prior art, provide a precise mandrel reaming device for cylindrical forgings, and solve the technical problem that the prior art cannot accurately form cylindrical forgings
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[0018] Typical embodiments embodying the features and advantages of the present invention will be described in detail in the following description with reference to the accompanying drawings. It should be understood that the present invention can have various changes in different embodiments without departing from the protection scope of the present invention, and the descriptions and illustrations therein are essentially for illustration rather than for limit the invention.
[0019] Such as Figure 1 to Figure 7 As shown, a precise mandrel reaming device for a cylindrical forging is composed of an upper anvil 80, a combined mandrel 30 and a pair of horse frames 40, and the combined mandrel 30 is composed of a mandrel 1 and two half rings 2. Two lining rings 3, two sets of reaming ring fastening stud groups 4, N adjusting pad rings 5 and two reaming rings 6, where N is a positive integer; the two ends of the mandrel 1 have positioning Groove 101, the mandrel diameter d1 an...
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The invention provides an accurate mandrel counterboring device for a cylindrical forge piece, and belongs to the field of hot processing of metallic materials. The accurate mandrel counterboring device is used for solving the technical problem in the prior art that the cylindrical forge piece cannot be accurately formed. The accurate mandrel counterboring device comprises an upper anvil, a combination mandrel and a pair of mandrel supporters, wherein the combination mandrel comprises a mandrel, a semi-ring combination, a backing ring, a counterboring ring fastening double-screw bolt set, an adjusting backing ring and a counterboring ring; semicircular grooves for placing the combination mandrel are formed in the upper ends of the mandrel supporters; the backing ring of the combination mandrel is put on the semicircular grooves; the counterboring ring can be customized in advance according to the wall thickness of the cylindrical forge piece; the number of the adjusting backing rings is determined by the height of the cylindrical forge piece; the counterboring ring has the effect of limiting the wall thickness and height of the cylindrical forge piece in a process of counterboring the last ring of the mandrel; and the counterboring deformation of the mandrel is similar to closed die forging. The accurate mandrel counterboring device has the beneficial effects that the accurate mandrel counterboring device is used for counterboring the mandrel of the cylindrical forge piece; the deformation is uniform and accurate; the gross-to-net ratio of the forge piece is reduced; the product accuracy, the production efficiency and the product quality are improved; and the production cost is reduced.
Description
technical field [0001] The invention belongs to the technical field of thermal processing of metal materials, and in particular relates to a precise mandrel reaming device for cylindrical forgings. technical background [0002] In the technical field of thermal processing of metal materials, the mandrel reaming process is commonly used for forging cylindrical forgings. In the traditional mandrel reaming process, with the thinning of the wall thickness of the cylindrical forging, the inner and outer diameters expand at the same time, and the height increases. It is related to various factors such as friction conditions, and usually cannot be completely accurately predicted, and its end surface is not smooth enough. In addition, the reduction amount of each anvil during the deformation process cannot be accurately limited. Therefore, the traditional mandrel reaming process cannot be accurate. For forming cylindrical forgings, the end face smoothing process needs to be added l...
Claims
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Login to View More IPC IPC(8): B21J13/02B21J5/02
CPCB21J5/025B21J13/02
Inventor 田继红禹兴胜赵利锋杜旋孙统辉郭丰伟刘建生何文武段兴旺王文浩
Owner 山西成业锻造股份有限公司