Axial tightening clamp for turbine housing

Abstract

The invention relates to an axial tightening clamp for a turbine housing. The axial tightening clamp for the turbine housing comprises a three-jaw chuck, wherein three movable jaws are arranged at thefront end of the three-jaw chuck; a clamping block is arranged at the front end of each movable jaw; a front limiting block is arranged on the front side of each clamping block; a rotary limiting block is arranged on a side surface of the clamping block of one of the movable jaws; a hydraulic rod is arranged in the middle of the three-jaw chuck; a tightening block sleeves the front end of the hydraulic rod; a pushing head is arranged on the tightening block; a rotary oil cylinder and a hydraulic cylinder for driving the hydraulic rod are arranged at the rear of the three-jaw chuck; the rotaryoil cylinder is connected with the hydraulic cylinder through an oil distributor; and oil is supplied for the hydraulic cylinder through the oil distributor. According to the axial tightening clamp for the turbine housing, three-jaw clamping and axial positioning and tightening are combined, the two functions can act independently and do not affect each other, parts of the turbine housing can betightened and positioned axially, the clamping precisions of a plurality of parts are consistent, machining repeatability is ensured, moreover, the precision of the clamp is adjusted and corrected conveniently and rapidly, and the practicality is high.

Description

technical field [0001] The invention relates to the field of turbine casing machining fixtures, in particular to a turbine casing axial clamping fixture. Background technique [0002] For such as image 3 with Figure 4 As shown in the turbine shell, the existing lathe fixture has no positioning and tightening function, and it is impossible to judge whether the positioning surface of the turbine shell part is in place. When processing multiple turbine shells, the identity of the machining and clamping cannot be guaranteed, which affects the repeatability. Contents of the invention [0003] In order to solve the above technical problems, the present invention provides a turbine shell axial clamping fixture, which combines three-jaw clamping and axial positioning clamping. The two functions can operate independently without affecting each other, so that the turbine shell parts can be Axial clamping and positioning, the clamping accuracy of multiple parts is consistent, whic...

AI Technical Summary

Problems solved by technology

[0002] For such as image 3 and Figure 4 For the turbine casing shown, the existing lathe fixture has no positioning and tightening function, and it is impossible to judge whether the positioning surface of the turbine casing parts is in place. When processing multiple turbine casings, the uniformity of processing and clamping cannot be guaranteed, which affects the repeatability

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