High-protection-effect moving blade welding box adaptive to various types of parts

Abstract

The utility model discloses a high-protection-effect moving blade welding box adaptive to various types of parts. The high-protection-effect moving blade welding box comprises a box body. A screw lifting mechanism is arranged in the box body; the screw lifting mechanism comprises a screw and a lifting platform arranged on the screw; a positioning clamp is arranged on the lifting platform; an argon diffusion device, a left argon channel and a right argon channel are further arranged in the box body; a turntable device is arranged at the bottom outside the box body. According to the utility model, the screw lifting mechanism is arranged in the welding box body, so that the problem of lengthy remodeling caused by non-uniform blade top heights of moving blades of different models can be solved; meanwhile, by arranging a positioning clamp structure, all moving blades of different models can be positioned only by adjusting the mounting position of a screw, and convenience and firmness are achieved; and the rotating structure is arranged at the bottom of the box body, so that an operator can conveniently rotate and move to meet the requirements of different welding processes when welding areas with different shapes are coped with.

Description

Technical Field

[0001] The utility model relates to a moving blade welding box with high protection effect for adapting to various types of machine parts, belonging to the technical field of moving blade welding and fixing equipment. Background Art

[0002] Most of the heavy-duty gas turbine turbine moving blades are formed by machining after nickel-based equiaxed crystal & directionally solidified casting. When repairing the damage of such parts by welding, it is necessary to ensure that the welding area is in an environment filled with argon to avoid any oxidation in the welding area and minimize the range of the heat-affected zone / the possibility of pores & thermal stress cracks. The existing technology is to put the product into a welding glove box filled with argon; the air in the glove box is replaced with argon by a circulation pump and a vacuum pump to make the cavity filled with high-purity argon, and then the parts are transferred into the box body to perform the welding operation. This welding glove box device is suitable for blades with smaller size and lighter weight. However, due to the inconsistent top heights of the moving blades of different height models, it leads to the problem of long changeover time and is not suitable for using this conventional welding glove box for welding repair operations. Moreover, the practical cost of replacing and adapting the welding glove box is high. Therefore, there is an urgent need for a technology or device that can solve the above problems. Summary of the Utility Model

[0003] In view of the problems existing in the above-mentioned prior art, the utility model provides a moving blade welding box with high protection effect for adapting to various types of machine parts, thereby solving the above technical problems.

[0004] To achieve the above object, the technical solution adopted by the utility model is: a moving blade welding box with high protection effect for adapting to various types of machine parts, including a box body; a screw lifting mechanism is arranged in the box body; the screw lifting mechanism includes a screw and a lifting platform arranged on the screw; a positioning fixture is arranged on the lifting platform; the positioning fixture is used for clamping the root of the moving blade; an argon diffusion device and left and right double argon channels are also arranged in the box body; a turntable device is arranged at the bottom outside the box body.

[0005] Further, the screw lifting mechanism can be a manual screw lifting mechanism or a screw motor lifting mechanism, which can realize the up and down movement of the lifting platform in the inner cavity of the box body to adapt to the positioning and installation of moving blade leaves with different heights.

[0006] Further, a plurality of bolt positioning holes are arranged on the lifting platform, and the positioning fixture can be installed by selecting the appropriate bolt positioning holes according to the size of the blade.

[0007] Further, the positioning fixture includes two front and rear L-shaped positioning plates; the L-shaped positioning plate includes a vertical installation part and a vertical clamping part; the vertical installation part is fixed on the lifting platform by bolts; the two front and rear vertical clamping parts are used for clamping and fixing the root of the moving blade.

[0008] Further, the turntable device includes a bottom support base and a slewing bearing between the box body and the support base, and the turntable is rotated around the center manually.

[0009] Further, the inlets of the left and right double argon channels are arranged above the box body near the welding part of the blade tip; the argon diffusion device is arranged at the inlets.

[0010] The beneficial effects of the present utility model are as follows: by arranging a screw lifting mechanism in the welding box body, the present utility model can solve the problem of long changeover caused by the inconsistent blade tip heights of different models of moving blades; at the same time, by arranging a positioning fixture structure, it is possible to position all moving blades of different models only by adjusting the screw installation positions, which is convenient and reliable; by arranging a rotating structure at the bottom of the box body, when dealing with welding areas of different shapes, the operator can rotate and move conveniently to meet the requirements of different welding processes; the double argon protection inlets are designed above the protection box (near the welding part of the blade tip), and an argon diffusion device is added at the inlets, so that the argon is fully diffused, and the welding area is fully immersed in a uniform argon protection atmosphere. Description of the Drawings

[0011] Figure 1 is a schematic structural view of the present utility model.

[0012] In the figure: 1. Box body, 2. Screw lifting mechanism, 21. Screw, 22. Lifting platform, 3. Positioning fixture, 31. L-shaped positioning plate, 311. Vertical installation part, 312. Vertical clamping part, 4. Argon diffusion device, 5. Left and right double argon channels, 6. Turntable device. Detailed Embodiments

[0013] To make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the drawings and embodiments. However, it should be understood that the specific embodiments described herein are only used to explain the present utility model and are not intended to limit the scope of the present utility model.

[0014] Unless otherwise defined, all technical terms and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present utility model belongs. The terms used in the description of the present utility model herein are only for the purpose of describing specific embodiments and are not intended to limit the present utility model.

[0015] Such as Figure 1As shown in the figure, a moving blade welding box with a high protection effect for adapting to components of multiple models, characterized in that it includes a box body 1; a screw lifting mechanism 2 is arranged inside the box body 1; the screw lifting mechanism 2 includes a screw 21 and a lifting platform 22 arranged on the screw 21; a positioning fixture 3 is arranged on the lifting platform 22; the positioning fixture 3 is used for clamping the root of the moving blade; an argon diffusion device 4 and a left-right double argon gas channel 5 are also arranged inside the box body 1; a turntable device 6 is arranged at the bottom outside the box body 1.

[0016] Preferably in this embodiment, the screw lifting mechanism 2 can be a manual screw lifting mechanism or a screw motor lifting mechanism, which can realize the up and down movement of the lifting platform 22 in the inner cavity of the box body 1 to adapt to the positioning and installation of moving blade vanes with different heights.

[0017] Preferably in this embodiment, a plurality of bolt positioning holes are arranged on the lifting platform 22, and the positioning fixture 3 can be installed and positioned by selecting the bolt positioning holes suitable for the size of the blade.

[0018] Preferably in this embodiment, the positioning fixture 3 includes two front and rear L-shaped positioning plates 31; the L-shaped positioning plate 31 includes a vertical installation part 311 and a vertical clamping part 312; the vertical installation part 311 is fixed to the lifting platform 22 by bolts; the two front and rear vertical clamping parts 312 are used for clamping and fixing the root of the moving blade.

[0019] Preferably in this embodiment, the turntable device 6 includes a bottom support seat and a slewing bearing between the box body and the support seat, and the turntable is driven to rotate around the center manually.

[0020] Preferably in this embodiment, the inlets of the left-right double argon gas channels 5 are arranged above the box body 1 near the welding part of the blade top; the argon diffusion device 4 is arranged at the inlets.

[0021] By arranging a screw lifting mechanism inside the welding box body, the present invention can solve the problem of long changeover caused by the inconsistent heights of the blade tops of moving blades of different models; at the same time, by setting a universal positioning fixture structure, it is possible to position all moving blades of different models only by adjusting the screw installation position, which is convenient and reliable; by setting a rotating structure at the bottom of the box body, when dealing with welding areas of different shapes, the operator can conveniently rotate and move to meet the requirements of different welding processes; the double argon gas protection inlets are designed above the protection box (near the welding part of the blade top), and an argon diffusion device is added at the inlets, so that the argon gas is fully diffused, and the welding area is fully immersed in a uniform argon gas protection atmosphere. Special airtight treatment is added to all openings to ensure the airtight effect of the protection box, effectively improving the welding quality and reducing argon gas waste.

[0022] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, or improvements made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A moving blade welding box with high protection effect adaptable to components of multiple models, characterized in that, It includes a box body (1); a screw rod lifting mechanism (2) is arranged inside the box body (1); the screw rod lifting mechanism (2) includes a screw rod (21) and a lifting platform (22) arranged on the screw rod (21); a positioning fixture (3) is arranged on the lifting platform (22); the positioning fixture (3) is used for clamping the root of the moving blade; an argon gas diffusion device (4) and a left and right double argon gas channels (5) are also arranged inside the box body (1); a turntable device (6) is arranged at the bottom outside the box body (1).

2. The high-protection-effect moving blade welding box adapted to components of multiple models according to claim 1, characterized in that The screw rod lifting mechanism (2) can be a manual screw rod lifting mechanism or a screw rod motor lifting mechanism, which can realize the up and down movement of the lifting platform (22) in the inner cavity of the box body (1) to adapt to the positioning and installation of moving blades with different heights.

3. A moving blade welding box with high protection effect adaptable to components of multiple models according to claim 1, characterized in that, A plurality of bolt positioning holes are arranged on the lifting platform (22), and the positioning fixture (3) can be installed by selecting the appropriate bolt positioning holes according to the size of the blade.

4. A moving blade welding box with high protection effect for adapting to components of multiple models according to claim 1, characterized in that, The positioning fixture (3) includes two L-shaped positioning plates (31) at the front and back; the L-shaped positioning plate (31) includes a vertical installation part (311) and a vertical clamping part (312); the vertical installation part (311) is fixed to the lifting platform (22) by bolts; the two vertical clamping parts (312) at the front and back are used for clamping and fixing the root of the moving blade.

5. A moving blade welding box with high protection effect adaptable to components of multiple models according to claim 1, characterized in that, The turntable device (6) includes a bottom support seat and a slewing bearing between the box body and the support seat, and the turntable is driven to rotate around the center manually.

6. A moving blade welding box with high protection effect adaptable to components of multiple models according to claim 1, characterized in that The inlets of the left and right double argon gas channels (5) are arranged above the box body (1) near the welding part of the blade top; the argon gas diffusion device (4) is arranged at the inlets.

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