Spot-welding positioning fixture device for hollow blade
A hollow blade, spot welding positioning technology, applied in the direction of auxiliary devices, manufacturing tools, welding equipment, etc., can solve the problem that the support plate cannot be installed in place, and achieve the effect of reliable lateral positioning
Active Publication Date: 2015-04-01
WUXI TURBINE BLADE
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Problems solved by technology
[0003] In view of the above problems, the present invention provides a spot welding positioning fixture device for hollow blades, which can solve the problem that the position of the support plate in the inner cavity of the blade cannot be guaranteed to be installed in place by the conventional blocking method, and ensure the production quality of the blade
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[0028] See Figure 3 ~ Figure 6 The spot welding positioning fixture device of the hollow blade of the present invention includes a spot welding fixture 10 for positioning the back arc plate 41 and the inner arc plate 42 of the hollow blade and clamping them together. The spot welding fixture 10 includes an upper mold 11 and a lower mold 12. The lower mold 12 is provided with a back-arc plate positioning cavity matching the outer profile of the hollow blade back-arc plate 41 for positioning the back-arc plate 41, and the upper die 11 is provided with a cavity matching the outer profile of the hollow blade inner arc plate 42. The positioning profile of the inner arc plate for positioning and pressing the inner arc plate 42, and the positioning device 20 for positioning the blade inner cavity support plate 43, the positioning device 20 of the blade inner cavity support plate 43 includes a large end positioning block 21 And the small end positioning block 22, the large end positi...
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The invention provides a spot-welding positioning fixture device for a hollow blade, and can solve the problem that in-place mounting of a supporting plate in an inner cavity of the blade cannot be ensured by a conventional blocking method, so that the production quality of the blade is ensured. The spot-welding positioning fixture device comprises a spot-welding fixture for positioning, splicing and clamping a back arc plate and an inner arc plate of the hollow blade, the spot-welding fixture comprises an upper mould and a lower mould, the lower mould is provided with a back arc plate positioning cavity which is matched with an outer profile of the back arc plate of the hollow blade and used for positioning the back arc plate, and the upper mould is provided with an inner arc plate positioning profile which is matched with an outer profile of the inner arc plate of the hollow blade and used for positioning and pressing the inner arc plate. The spot-welding positioning fixture device is characterized by further comprising a positioning device for positioning the supporting plate in the inner cavity of the blade, and the positioning device comprises a large end positioning block and a small end positioning block which are placed at a large end and a small end of the inner cavity of the hollow blade respectively and used for horizontally positioning and ejecting the supporting plate in the inner cavity of the blade.
Description
technical field [0001] The invention relates to the field of processing devices for steam turbine hollow blades, in particular to a spot welding positioning fixture device for hollow blades. Background technique [0002] The traditional hollow blades of steam turbines are integrally welded by the inner arc plate and the back arc plate on the air inlet side and the air outlet side respectively. The inner arc plate and the back arc plate are positioned and pressed by the upper mold and the lower mold of the welding mold during welding. And complete the welding operation; At present, hollow blades with new structures have appeared in the design and manufacture of hollow blades of steam turbines, such as figure 1 with figure 2 As shown, this type of hollow blade is filled with a W-shaped support plate in the blade cavity, and the W-shaped support plate is filled into the cavity of the hollow blade and connected to the hollow blade body by plug welding. In actual operation, si...
Claims
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IPC IPC(8): B23K37/04
CPCB23K37/0435B23K37/0443B23K2101/001
Inventor 刘永骏苏化冰
Owner WUXI TURBINE BLADE