Quenching pressing die fixture

Abstract

The invention discloses a quenching pressing die fixture which comprises a fixed tray, base plates, inner pressing rings and outer pressing rings, wherein conical holes with large lower parts and small upper parts are formed in the lower ends of the outer pressing rings; radial step holes are formed in the base plates; a screw is connected to each step hole; a supporting ring is arranged on each screw in a sliding manner; outer resetting springs are sleeved on the screws; conical surfaces with large lower parts and small upper parts are arranged on the outer walls of the supporting rings; a plurality of axial slots and a plurality of radial slots are formed in the inner walls of the supporting rings; a center hole and convex rings are arranged on the fixed tray; an expanding mandrel penetrates through the center hole and is provided with a cone with a large upper part and a small lower part; a plurality of expanding blocks are arranged around the cone on the fixed tray in a sliding manner; a conical surface matched with the cone is arranged on the inner wall of each expanding block; a plurality of axial slots and a plurality of radial slots are formed in the outer wall of each expanding block; each expanding block is provided with a radial step hole; a connection screw is connected with each step hole; inner resetting springs positioned between the convex rings and the corresponding expanding blocks are sleeved on the connection screws. The quenching pressing die fixture can effectively control the deformation of a workpiece in various directions and guarantee the hardenability, so that the yield of a product is greatly improved.

Description

technical field [0001] The invention relates to a quenching die tooling, in particular to a quenching die tooling for shaft sleeve parts. Background technique [0002] At present, when the shaft sleeve parts are quenched, due to their relatively thin wall thickness, there is a large amount of deformation, which seriously affects the product quality and even leads to scrapping; the existing quenching die tooling is only for the upper and lower ends of the workpiece. Pressing and quenching, the radial deformation is still uncontrollable, and the qualified rate of the product is low. Contents of the invention [0003] The object of the present invention is to provide a quenching die tooling for the above-mentioned shortcomings in the prior art, which can effectively control the deformation of workpieces in all directions, ensure hardenability, and greatly improve the qualified rate of products. [0004] In order to achieve the above object, a quenching die tooling of the...

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Problems solved by technology

[0002] At present, when the shaft sleeve parts are quenched, due to their relatively thin wall thickness, there is a large amount of deformation, which seriously affects the product quality and even leads to scrapping; the existing quenching die tooling is only for the upper and lower ends of the workpiece. Pressing and quenching, the radial deformation is still uncontrollable, and the qualified rate of the product is low

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