Plug welding rotation device for impeller workpiece

Abstract

The utility model provides a plug welding rotation device for an impeller workpiece, and relates to the technical field of impeller welding equipment. The circular supporting disc is arranged above the chassis through a rotary connecting assembly and is used for placing an impeller workpiece; wherein the diameter of the circular supporting disc is smaller than that of the chassis; the rotary connecting assembly comprises a round pipe welded to the base plate and a plane thrust rolling bearing arranged on the round pipe, and a base of the plane thrust rolling bearing is welded and fixed to the base plate. The circular supporting disc used for containing the impeller workpiece is arranged above the chassis through the rotary connecting assembly, plug welding rotation positioning and using of the impeller workpiece with the diameter within 1 m can be achieved in a covering mode, welding workers can easily rotate the workpiece at the fixed position and are prevented from getting up and moving back and forth, the working efficiency is improved, and the cost is reduced.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of impeller welding equipment, in particular to a plug welding rotary device for an impeller workpiece. BACKGROUND

[0002] Plug welding of a compressor can make stress of the centrifugal compressor more evenly distributed at a plug welding connection position when the centrifugal compressor is in a running process, and the centrifugal compressor can better bear complex load, so that the structural stability of the centrifugal compressor under working conditions such as high-speed rotation and internal pressure change is ensured. At present, plug welding of the centrifugal compressor is usually performed manually, and the centrifugal compressor needs to be placed in a flat welding position for welding.

[0003] Since the impeller welding seam is a kind of evenly distributed groove weld, a welding operator needs to constantly change positions around the workpiece to match appropriate welding positions during plug welding. However, since the impeller has many blades, the welding of the impeller workpiece needs to be moved for dozens of times, which causes great waste of action and low production efficiency. Meanwhile, the existing welding positioner mainly turns and rotates the workbench as a whole to make the welding seam in a horizontal or boat-shaped position, and is usually used in cooperation with a telescopic arm type welding operation machine to adapt to welding of various rotary body workpieces such as shafts and discs, which leads to a complex structure and high use cost. CONTENT OF THE UTILITY MODEL

[0004] In view of the above problems, the utility model provides a plug welding rotary device for an impeller workpiece, which comprises a chassis, a circular support disc and a rotary connection assembly. The rotary connection assembly is arranged above the chassis and is used for placing the impeller workpiece and supporting the circular support disc to realize forward / reverse rotation, so as to realize plug welding rotary positioning and use of the impeller workpiece, realize easy rotation of the workpiece by the welding operator at a fixed position, avoid moving up and down and the like, and improve work efficiency.

[0005] To achieve the purpose of the application, the application provides the following technical scheme:

[0006] The application provides a plug welding rotary device for an impeller workpiece, which comprises:

[0007] a chassis;

[0008] a circular support disc arranged above the chassis through the rotary connection assembly and used for placing the impeller workpiece; wherein the diameter of the circular support disc is smaller than the diameter of the chassis;

[0009] the rotary connection assembly comprises a circular tube welded with the chassis and a planar thrust rolling bearing arranged on the circular tube, and the base of the planar thrust rolling bearing is welded and fixed with the chassis.

[0010] In some embodiments, the middle part of the circular base plate is further provided with a motor shaft output port matched with the motor output shaft, for supplying rotating power to the circular support plate.

[0011] In some embodiments, the outer cylindrical surface of the circular support plate is provided with a plurality of extension assemblies, which are evenly arranged based on the outer cylindrical surface.

[0012] In some embodiments, the base plate is a circular base plate, the middle part of the extension assembly is provided with a first positioning hole, the first circumferential position of the circular base plate is provided with a plurality of second positioning holes with the same diameter as the first positioning hole, and the first positioning hole and any second positioning hole are coaxial for mounting a positioning taper pin.

[0013] In some embodiments, the second circumferential position of the base plate is provided with a plurality of circular tubes, and a first gap is provided between the top of each circular tube and the bottom of the circular support plate, and the first gap is ≤0.2cm

[0014] In some embodiments, the third circumferential position of the base plate is provided with a plurality of wire holes for lifting.

[0015] In some embodiments, the diameter of the base plate is greater than the maximum impeller diameter for a centrifugal compressor.

[0016] The plug welding rotary device for impeller workpieces provided by the present application can cover the plug welding rotary positioning and use of impeller workpieces with a diameter of 1m or less by setting a circular support plate for placing impeller workpieces above the base plate through the rotary connection assembly, so that the welding workers can easily rotate the workpieces in a fixed position, avoiding moving back and forth, and improving work efficiency and reducing costs. BRIEF DESCRIPTION OF DRAWINGS

[0017] The accompanying drawings are included to provide a further understanding of the present application, and constitute a part of the specification, which together with the embodiments of the present application, serve to explain the present application, and do not constitute a limitation on the present application;

[0018] Figure 1 The structure schematic view of the plug welding rotary device for impeller workpieces provided by the embodiments of the present application;

[0019] Figure 2 The structure sectional view of the plug welding rotary device for impeller workpieces provided by the embodiments of the present application;

[0020] Figure 3 The structure side view schematic view of the plug welding rotary device for impeller workpieces provided by the embodiments of the present application;

[0021] Figure 4 The structure top view schematic view of the plug welding rotary device for impeller workpieces provided by the embodiments of the present application;

[0022] Figure 5 The structure of the plug welding rotary device for the impeller workpiece provided by the embodiment of the application is shown in the front view.

[0023] Reference signs:

[0024] 1, chassis; 2, circular support disc; 201, extension assembly; 301, circular tube; 302, planar thrust rolling bearing; 303, second positioning hole. DETAILED DESCRIPTION

[0025] In order to make the objectives, technical solutions and advantages of the present application clearer, the technical solutions in the present application will be described clearly and completely below with reference to the drawings in the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0026] The terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features; in the description of the present application, unless otherwise specified, the meaning of "multiple" is two or more.

[0027] It can be understood that the meanings of "on", "above" and "over" in the present disclosure should be interpreted in the broadest way, so that "over" not only means "on" something with no intervening features or layers therebetween (i.e. directly on something), but also includes the meaning of "on" something with intervening features or layers therebetween.

[0028] In the embodiments of the present disclosure, the term "A is connected with B" includes the case where A and B are connected with each other in contact with each other, or the case where A and B are connected with each other without contact with each other with other components interposed therebetween.

[0029] It should be noted that the technical solutions described in the embodiments of the present disclosure can be combined arbitrarily without conflict.

[0030] The term explanation of the present application can refer to the following content, and the specific interpretation refers to the application scenarios of the corresponding embodiments 1 to 3.

[0031] Embodiment 1

[0032] Reference Figures 1 to 5The application discloses a plug welding rotary device for impeller workpieces, which comprises a base plate 1, a circular support plate 2, wherein the diameter of the circular support plate 2 is smaller than that of the circular base plate 1, the circular support plate 2 is arranged above the base plate 1 through the plane thrust rolling bearing 101, a rotating connection assembly connected with the circular support plate 2 is coaxially arranged along the center of the base plate 1, the rotating connection assembly comprises a circular tube 301 welded with the base plate 1 and a plane thrust rolling bearing 302 arranged on the circular tube 301, the base of the plane thrust rolling bearing 302 is welded and fixed with the base plate 1, the circular support plate 2 can be positively or negatively rotated by 360 degrees relative to the base plate 1, so that the impeller workpiece can be driven to positively or negatively change when the impeller workpiece is placed on the circular support plate 2, and the welding operator can realize the rotation of the impeller workpiece at a fixed work position.

[0033] The base plate 1 can be a circular base plate. The outer cylindrical surface of the circular support plate 2 is provided with a plurality of extension assemblies 201, the plurality of extension assemblies 201 are uniformly and spacedly arranged on the outer cylindrical surface of the circular support plate 2, so as to serve as rotating handles to drive the rotation of the circular support plate 2; for example, the extension assembly 201 can be a rectangular extension plate. In consideration of the positioning of the circular support plate 2, a first positioning hole is arranged in the middle of each rectangular extension plate, a second positioning hole 303 coaxial with the first positioning hole is arranged at a first circumferential position of the circular base plate, and the second positioning hole 303 has the same diameter as the first positioning hole, so that when the circular support plate is temporarily positioned (the circular support plate is rotated to be coaxial with the first positioning hole and the second positioning hole 303), a positioning taper pin is inserted into the space formed by the coaxial first positioning hole and the second positioning hole 303. For example, the number of the extension assemblies 201 is four, the four extension assemblies 201 are spaced by 90 degrees, and a multiple (such as 12, 16, 20, etc.) of the number of the extension assemblies 201 is arranged at the same distance (the distance from the center of the circular support plate 2 to the center of the first positioning hole / the distance from the center of the circular base plate to the center of the second positioning hole 303) of the base plate 1. When the impeller workpiece is a large-diameter impeller, the first positioning hole of each extension assembly 201 can be fixed with the corresponding second positioning hole 303 based on the positioning taper pin, so as to increase the bearing capacity of the circular support plate 2 and enhance the work stability.

[0034] In some embodiments, a plurality of wire holes are arranged at the third circumferential position of the circular base plate for hoisting. The distance between the center of any wire hole at the third circumferential position (circle) and the center of the circular base plate is less than the distance between the second positioning hole 303 and the center of the circular base plate.

[0035] It should be noted that the diameter of the circular base plate of the embodiment of the present application needs to be greater than the maximum impeller diameter of the centrifugal compressor in the conventional scenario.

[0036] In actual application, the plug welding rotary device for the impeller workpiece of the present application can be easily made based on the existing materials and equipment capacity in the workshop, without additional material and labor costs.

[0037] The plug welding rotary device for the impeller workpiece of the embodiment of the present application can cover the plug welding rotary positioning and use of the impeller workpiece with a diameter of less than 1 m by arranging a circular support disc for placing the impeller workpiece above the base plate through the rotary connecting assembly. The welding worker can easily rotate the workpiece at a fixed position, avoiding moving back and forth, thereby improving work efficiency and reducing costs.

[0038] Embodiment 2

[0039] Based on the foregoing embodiments, the plug welding rotary device for the impeller workpiece of the embodiment of the present application can be provided with a motor shaft output port adapted to the motor output shaft at the middle of the base plate for supplying the circular support disc with rotating power.

[0040] In several embodiments provided by the present application, it should be understood that the disclosed system, modules and methods can be implemented in other ways. For example, the above-described module embodiments are only schematic. The division of units is only a logical function division. There can be another division manner in actual implementation, for example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the units shown or discussed can be indirect coupling or communication connection through some interfaces, modules or units, which can be electrical, mechanical or other forms.

[0041] The above embodiments are only used to illustrate the technical solutions of the present application, rather than limit them. The present application is not limited to the exact structure described above and shown in the drawings. The specific implementation of the present application should not be limited to the above description. For ordinary skilled in the art to which the present application belongs, various changes and modifications made without departing from the concept of the present application should be considered within the scope of protection of the present application.

Claims

1. A plug welding rotary device for an impeller workpiece, characterized by, The utility model relates to a kind of centrifugal compressor baseplate, including: Base plate (1); Circular support disc (2) is placed above the base plate (1) by rotating connection component, for placing impeller workpiece;Wherein, the diameter of the circular support disc (2) is less than the diameter of the base plate (1); The rotating connection component includes circular tube (301) welded with the base plate (1), and plane thrust rolling bearing (302) is arranged on the circular tube (301), and the base of the plane thrust rolling bearing (302) is welded and fixed with the base plate (1).

2. A plug welding rotary device for an impeller workpiece according to claim 1, characterized in that, The outer cylindrical surface of the circular support disc (2) is equipped with several extension components (201), and several extension components (201) are evenly arranged based on the outer cylindrical surface.

3. A plug welding rotary device for an impeller workpiece according to claim 2, characterized in that, The base plate (1) is circular base plate, the middle part of the extension component (201) is equipped with first positioning hole, the first circular position of the circular base plate is equipped with several second positioning holes (303) with the same diameter as the first positioning hole, and the first positioning hole and any second positioning hole (303) are coaxial for installing positioning cone pin.

4. A plug welding rotary device for an impeller workpiece according to claim 1, characterized in that, The second circular position of the base plate (1) is equipped with several circular tubes, and the top of each circular tube is equipped with first gap between the bottom of circular support disc (2), and the first gap is less than or equal to 0.2cm.

5. A plug welding rotary device for an impeller workpiece according to claim 1, characterized in that, The third circular position of the base plate (1) is equipped with several wire holes for lifting.

6. A plug welding rotary device for an impeller workpiece according to claim 1, characterized in that, The middle part of the base plate (1) is also equipped with motor shaft output port matched with motor output shaft, for supplying rotating power for the circular support disc (2).

7. A plug welding rotary device for an impeller workpiece according to any one of claims 1 to 6, characterized in that, The diameter of the base plate (1) is greater than the maximum impeller diameter for centrifugal compressor.

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