Pressing-sleeve tool structure

Abstract

The invention discloses a pressing-sleeve tool structure. The pressing-sleeve tool structure comprises a pressing head, a nut is arranged below the pressing head, a threaded hole is vertically formedin shaft center of the nut, and a sleeve is arranged below the nut; a fixing hole is formed in the upper end of the pressing head, a connecting hole is formed in the pressing head at the lower end ofthe fixing hole, a screw is movably arranged in the connecting hole, and a threaded hole formed in the upper end of the nut is connected to the lower end of the screw through a first thread; a pullingrod is movably arranged in an inner cylinder of the sleeve, a threaded hole formed in the lower end of the nut is movably connected to the upper end of the pulling rod through a second thread, a strip-type limiting groove is vertically formed in the pulling rod, a limiting threaded hole is formed in the sleeve on one side of the strip-type limiting groove, and an adjusting screw is movably connected to the limiting threaded hole through a thread. The pressing-sleeve tool structure has the advantages that static-pressure press fitting is achieved, a punching head is not prone to deflection, apin can be subjected to press fitting in the perpendicular direction, it can be avoided that the external-circle diameter of the pin can be increased, it is avoided that assembling of a product is influenced, the product quality is good, the machining efficiency is high, and the percent of pass is high.

Description

technical field [0001] The invention relates to all kinds of products (military products, civilian products and foreign trade products, etc.) that need to press sleeve (pin) assemblies, especially the press sleeve (pin) assemblies of assemblies in the field of aero-engine machinery manufacturing. Background technique [0002] At present, in mechanical manufacturing, many product assemblies require press-fitting pins, which puts forward higher demands on pin press-fitting technology. In the existing technology of pressing pins, most of the pins are pressed by hitting with a hammer. The defect of this processing method is that the impact force of hitting with a hammer is relatively large, and the punch is easy to be deflected. , the pin cannot be press-fitted in the vertical direction, which will cause the diameter of the outer circle of the pin to become larger (thick or bent), directly affecting product assembly and quality, low processing efficiency, and low pass rate. [...

AI Technical Summary

Problems solved by technology

In the existing technology of pressing pins, most of the pins are pressed by hitting with a hammer. The defect of this processing method is that the impact force of hitting with a hammer is relatively large, and the punch is easy to be deflected. , the pin cannot be press-fitted in the vertical direction, which will cause the outer diameter of the pin to become larger (thicker or bent), which will directly affect product assembly and quality, low processing efficiency, and low pass rate

[0003] To sum up, the existing technology has a large impact force, the punch is easy to deflect, and the pin cannot be pressed in the vertical direction, which will cause the diameter of the outer circle of the pin to become larger, which will affect the product assembly and quality, and the processing efficiency is low. Low rate of technical issues

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