Tool and method for taking out bushing

Abstract

The invention discloses a tool and method for taking out a bushing. The tool for taking out the bushing comprises a clamping device, an ejector rod, a connecting block, a connecting rod and a slidinghandle. During use, the ejector rod props open a reverse guide protrusion of the clamping device, meanwhile, the ejector rod abuts against the connecting rod through the connecting block, the connecting block is connected to the connecting rod, and the sliding handle continuously slides back and forth on the connecting rod and impacts a boss at the head position of the connecting rod, so that thereverse guide protrusion of the clamping device is driven to eject the bushing outwards. The tool and method are suitable for shoulder-free fixing bushings of various sizes, high in working efficiencyand convenient to operate.

Description

technical field [0001] The invention relates to the field of mechanical equipment manufacturing, in particular to a tool for taking out a bushing. Background technique [0002] In the process equipment design system, in order to ensure the durability of a large number of bushing holes, technicians often use the form of press-fit bushings to achieve. Because the material hardness and wear resistance of the bush itself are generally higher than that of the entire tooling, the design of the partial press-fit bush not only reduces the material cost, but also improves the service life. Relevant process equipment includes: boring jig, drilling jig, assembly jig, inspection jig, etc. [0003] Based on the progress of the aircraft body parts project, a certain number of parts configuration changes and hole positions are involved. For the corresponding tooling, the hole position of the press-fit bushing needs to be changed. Taking out the original bushing becomes one of the necess...

AI Technical Summary

Problems solved by technology

However, this method is limited to the press-fit bushing in a closed environment, and it can only be used when it fits with the hole diameter of the tooling. When transition fit or clearance fit is used, since there may be a certain gap between the hole and the bush, this cannot be guaranteed. The reliability of the method; and when there is a stop pin fixed on the side of the bushing, this method cannot take out the bushing; also due to the difficulty of matching the tolerance with the long slotted hole, this method is not suitable for long Slotted Bore Type Bushings

Method 3. The fitter drills a series of small holes on the surface of the tooling around the bushing, and takes out the bushing by drilling out the force point. This method has more comprehensive versatility, but this operation method will destroy the original holes on the tooling. The staff had to perform secondary processing on the original hole

[0008] Therefore, the traditional way of taking out the bushing has certain limitations in the use environment, work efficiency, and even product quality, which increases the workload on site, construction difficulty and waste of materials to a certain extent.

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