Volute welding positioning device

Abstract

The volute welding positioning device comprises a base, an adjusting structure and a positioning structure, an opening is formed in the top of the base, the adjusting structure is arranged in the base, the top of the adjusting structure extends to the surface of the opening, the positioning structure is arranged on the top of the adjusting structure, and the positioning structure is arranged on the top of the adjusting structure. The volute can be placed above the base, the positioning structure is driven by the adjusting structure to move so as to be suitable for volutes of different models and sizes, and the volutes are fixed and limited through the positioning structure and then welded. And the effect of solving the problems that when an existing fan volute is subjected to welding work, due to the fact that the appearance of the existing fan volute is uneven, deviation is likely to happen, welding seams are difficult to be in accurate butt joint, the defects of incomplete fusion, slag inclusion, air holes and the like possibly occur in the welding seams, and the overall structure and performance of the fan volute are affected is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of volute welding, and in particular relates to a volute welding positioning device. Background Art

[0002] The fan volute, also known as the guide vane case or volute casing, is one of the important components of the fan. It consists of three parts: the front guide vane, the volute wall and the rear guide vane. Its main function is to improve the fan efficiency and air volume by turning and accelerating the gas entering the fan. At the same time, the design of the fan volute is the key, which determines the performance and efficiency of the fan. The fan volute plays an important role in improving the fan efficiency and air volume. The welding of the fan volute is a crucial link in the manufacturing process of the fan volute. Choosing the appropriate welding process and parameters is crucial to ensuring the welding quality. According to the material, thickness and structural characteristics of the fan volute, it is necessary to select suitable welding methods and welding parameters.

[0003] The problem with the prior art is that when the fan volute is welded, it may shift due to its uneven surface, making it difficult to accurately butt the weld, resulting in defects such as lack of fusion, slag inclusions, and pores in the weld, affecting the overall structure and performance of the fan volute. Utility Model Content

[0004] In view of the problems existing in the prior art, the utility model provides a volute welding positioning device, which has an adjustment function to adapt to volutes of different models and sizes, and fixes and limits them before welding, thereby preventing the volute from shifting during welding and causing defects in the weld. It solves the problem that the existing fan volute may shift due to its uneven surface during welding, making it difficult to accurately connect the weld, resulting in defects such as unfused welds, slag inclusions, and pores in the weld, affecting the overall structure and performance of the fan volute.

[0005] The utility model is implemented as follows: a volute welding positioning device comprises a base, an adjusting structure and a positioning structure, wherein an opening is provided at the top of the base, an adjusting structure is arranged inside the base, the top of the adjusting structure extends to the surface of the opening, and a positioning structure is arranged at the top of the adjusting structure.

[0006] As a preferred embodiment of the utility model, the adjustment structure includes two sliding arms, the two ends of the sliding arms are respectively fixedly connected to the left and right sides of the inner wall of the base, the bottom of the two sliding arms is provided with a synchronous gear, the bottom of the synchronous gear is rotatably connected to the bottom of the inner wall of the base through a rotating shaft, the surfaces of the two sliding arms are sleeved with moving arms, and the front sides of the two sliding arms are provided with main screws. By setting the sliding arms, the main screw can drive the front moving arm to slide on the surface of the sliding arm and drive the rear moving arm to slide synchronously through the synchronous gear.

[0007] As a preferred embodiment of the utility model, the two ends of the main screw are respectively rotatably connected to the left and right sides of the inner wall of the base, the left side of the main screw extends and penetrates the surface of the base, the left side of the main screw is fixedly connected to a handle, and the surface of the main screw is threadedly connected to a main sleeve. By setting the main screw, when the handle is rotated, it can drive the main screw to rotate, thereby driving the main sleeve to move and driving the front moving arm to move.

[0008] As a preferred embodiment of the utility model, two movable arms are provided, the inner walls of the two movable arms are respectively sleeved on the surfaces of the two sliding arms, the tops of the two sliding arms are respectively sleeved on the surfaces of the openings, the bottoms of the two movable arms are respectively fixedly connected with movable plates, a plurality of grooves are respectively provided on the sides of the two movable plates close to each other, the two movable plates are respectively meshed with synchronous gears through the grooves, and the front side of the front movable arm is fixedly connected to the main sleeve, and by setting the movable arm, the movable plate is driven to move when the front movable arm is driven to move, thereby driving the synchronous gear to rotate through the groove, and in turn synchronously drives the rear movable arm to move closer or farther away synchronously.

[0009] As a preferred embodiment of the utility model, the positioning structure includes a fixed shell, the bottom of the fixed shell is fixedly connected to the top of the movable arm, a linkage rod is provided on the side of the fixed shell away from the movable arm, the linkage rod extends at one end close to the fixed shell and penetrates the surface of the fixed shell, the end of the linkage rod extending into the fixed shell is provided with a linkage block, the surface of the end of the linkage rod extending into the fixed shell is sleeved with a fixed spring, and by providing the fixed shell, the movable arm can drive the movement of the fixed shell when it moves, thereby being suitable for volutes of different models and sizes and fixing and limiting them through the positioning structure to facilitate welding work.

[0010] As a preferred embodiment of the present invention, the inner wall of the linkage block is fixedly connected to the surface of the linkage rod extending into one end of the fixed shell, the front and rear sides of the linkage block are respectively rotatably connected to the rotating rod via a rotating shaft, the two ends of the fixed spring are respectively fixedly connected to the side of the linkage block and the inner wall of the fixed shell close to each other, the ends of the two rotating rods away from the linkage rod are rotatably connected to the first linkage arm via a rotating shaft, and by setting the linkage block, when the linkage rod is pulled, it can drive the linkage block to move, thereby driving the two rotating rods to rotate, and when released, the linkage block is pulled to reset by the fixed spring.

[0011] As a preferred embodiment of the present invention, the middle parts of the two first linkage arms are respectively connected to the inner wall of the fixed shell by rotating shafts, and two second linkage arms are respectively arranged on the sides of the two first linkage arms close to each other, and one end of the two second linkage arms close to the linkage rod is rotatably connected to the inner wall of the fixed shell by rotating shafts, and the front first linkage arm and the front second linkage arm are rotatably connected to the fixed block at one end away from the fixed shell by rotating shafts, and the rear first linkage arm and the rear second linkage arm are rotatably connected to the fixed block at one end away from the fixed shell by rotating shafts. By providing the first linkage arm and the second linkage arm, when the rotating rod rotates, the first linkage arm is driven to rotate, thereby driving the fixed block to move closer and driving the second linkage arm to rotate at the same time to enhance stability, so that the two fixed blocks can fix and limit the volute to be welded.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] 1. The utility model achieves the effect of solving the problem that during welding of the existing fan volute, the volute may be offset due to its uneven surface, making it difficult to accurately butt the weld, resulting in defects such as lack of fusion, slag inclusion, and air holes in the weld, thus affecting the overall structure and performance of the fan volute, by setting a base, an adjustment structure and a positioning structure.

[0014] 2. The utility model can place the volute above the base by setting an adjustment structure and a positioning structure. The adjustment structure drives the positioning structure to move to adapt to volutes of different models and sizes. The positioning structure is used to fix and limit the volute before welding, ensuring that the volute will not shift during welding, resulting in defects in the weld and affecting the use of the volute. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram provided by an embodiment of the utility model;

[0016] Figure 2 It is a structural schematic diagram of a base provided by an embodiment of the utility model;

[0017] Figure 3 It is a structural schematic diagram of the adjustment structure provided by the embodiment of the utility model;

[0018] Figure 4 It is a cross-sectional schematic diagram of a fixed housing and a structural schematic diagram of a positioning structure provided by an embodiment of the utility model.

[0019] In the figure: 1, base; 101, opening; 2, adjustment structure; 3, sliding arm; 4, synchronous gear; 5, main screw; 6, moving arm; 7, handle; 8, main sleeve; 9, moving plate; 10, groove; 11, positioning structure; 12, fixed shell; 13, linkage rod; 14, linkage block; 15, fixed spring; 16, rotating rod; 17, first linkage arm; 18, second linkage arm; 19, fixed block. DETAILED DESCRIPTION

[0020] In order to further understand the content, features and effects of the present invention, the following embodiments are given as examples and described in detail with reference to the accompanying drawings.

[0021] The structure of the utility model is described in detail below in conjunction with the accompanying drawings.

[0022] like Figures 1 to 4 As shown, a volute welding positioning device provided by an embodiment of the utility model includes a base 1, an adjusting structure 2 and a positioning structure 11. An opening 101 is provided at the top of the base 1, and the adjusting structure 2 is arranged inside the base 1. The top of the adjusting structure 2 extends to the surface of the opening 101, and the positioning structure 11 is arranged at the top of the adjusting structure 2.

[0023] refer to Figure 3 The adjustment structure 2 includes two sliding arms 3, the two ends of the two sliding arms 3 are fixedly connected to the left and right sides of the inner wall of the base 1 respectively, and the bottom of the two sliding arms 3 is provided with a synchronous gear 4, and the bottom of the synchronous gear 4 is rotatably connected to the bottom of the inner wall of the base 1 through a rotating shaft. The surfaces of the two sliding arms 3 are sleeved with moving arms 6, and the front faces of the two sliding arms 3 are provided with main screws 5.

[0024] The above solution is adopted: by setting the sliding arm 3, the main screw 5 can drive the front moving arm 6 to slide on the surface of the sliding arm 3 and drive the rear moving arm 6 to slide synchronously through the synchronous gear 4.

[0025] refer to Figure 3 The two ends of the main screw 5 are rotatably connected to the left and right sides of the inner wall of the base 1 respectively, the left side of the main screw 5 extends and passes through the surface of the base 1, the left side of the main screw 5 is fixedly connected to the handle 7, and the surface of the main screw 5 is threadedly connected to the main sleeve 8.

[0026] The above solution is adopted: by arranging the main screw 5, when the handle 7 is rotated, it can drive the main screw 5 to rotate, thereby driving the main sleeve 8 to move and driving the front moving arm 6 to move.

[0027] refer to Figure 3Two movable arms 6 are provided, the inner walls of the two movable arms 6 are respectively sleeved on the surfaces of the two sliding arms 3, the tops of the two sliding arms 3 are respectively sleeved on the surfaces of the openings 101, the bottoms of the two movable arms 6 are respectively fixedly connected with movable plates 9, a plurality of grooves 10 are respectively provided on the sides of the two movable plates 9 close to each other, the two movable plates 9 are respectively meshed with the synchronous gears 4 through the grooves 10, and the front side of the front movable arm 6 is fixedly connected with the main sleeve 8.

[0028] The above solution is adopted: by setting the moving arm 6, when the front moving arm 6 is driven to move, it drives the moving plate 9 to move, thereby driving the synchronous gear 4 to rotate through the groove 10, and in turn synchronously drives the rear moving arm 6 to move closer or farther.

[0029] refer to Figure 4 The positioning structure 11 includes a fixed shell 12, the bottom of the fixed shell 12 is fixedly connected to the top of the movable arm 6, a linkage rod 13 is provided on the side of the fixed shell 12 away from the movable arm 6, the linkage rod 13 extends from one end close to the fixed shell 12 and penetrates the surface of the fixed shell 12, a linkage block 14 is provided on one end of the linkage rod 13 extending into the fixed shell 12, and a fixed spring 15 is sleeved on the surface of one end of the linkage rod 13 extending into the fixed shell 12.

[0030] The above solution is adopted: by setting the fixed shell 12, the movable arm 6 can drive the fixed shell 12 to move when moving, so as to be suitable for volutes of different models and sizes, and the volutes are fixed and limited by the positioning structure 11 to facilitate welding work.

[0031] refer to Figure 4 The inner wall of the linkage block 14 is fixedly connected to the surface of the linkage rod 13 extending into one end of the fixed shell 12, and the front and rear sides of the linkage block 14 are respectively rotatably connected with the rotating rod 16 through a rotating shaft. The two ends of the fixed spring 15 are respectively fixedly connected to the side where the linkage block 14 and the inner wall of the fixed shell 12 are close to each other, and the ends of the two rotating rods 16 away from the linkage rod 13 are rotatably connected with the first linkage arm 17 through a rotating shaft.

[0032] The above solution is adopted: by setting the linkage block 14, when the linkage rod 13 is pulled, it can drive the linkage block 14 to move, thereby driving the two rotating rods 16 to rotate, and when released, the linkage block 14 is pulled to reset through the fixed spring 15.

[0033] refer to Figure 4The middle of the two first linkage arms 17 are rotatably connected to the inner wall of the fixed shell 12 through a rotating shaft, and two second linkage arms 18 are respectively arranged on the side where the two first linkage arms 17 are close to each other. The ends of the two second linkage arms 18 close to the linkage rod 13 are rotatably connected to the inner wall of the fixed shell 12 through a rotating shaft. The ends of the front first linkage arm 17 and the front second linkage arm 18 away from the fixed shell 12 are rotatably connected to a fixed block 19 through a rotating shaft, and the ends of the rear first linkage arm 17 and the rear second linkage arm 18 away from the fixed shell 12 are rotatably connected to the fixed block 19 through a rotating shaft.

[0034] The above scheme is adopted: by setting the first linkage arm 17 and the second linkage arm 18, when the rotating rod 16 rotates, the first linkage arm 17 is driven to rotate, thereby driving the fixed block 19 to move closer and driving the second linkage arm 18 to rotate to enhance stability so that the two fixed blocks 19 can fix and limit the volute to be welded.

[0035] The working principle of this utility model:

[0036] When in use, place the volute to be welded on the top of the base 1, rotate the handle 7 to drive the main screw 5 to rotate, the main screw 5 rotates and drives the main sleeve 8 to move and drives the front moving arm 6 to move, when the front moving arm 6 moves, it drives the moving plate 9 to move and drives the synchronous gear 4 to rotate through the groove 10, the synchronous gear 4 rotates and thereby drives the moving plate 9 to drive the rear moving arm 6 to move synchronously and approach through the groove 10, the moving arm 6 moves and drives the fixed shell 12 to approach the volute to be welded, and then push the linkage rod 13 to drive the linkage block 14 to move and respectively drive the two rotating rods 16 to rotate, the two rotating rods 16 rotate and respectively drive the two first linkage arms 17 to rotate, the two first linkage arms 17 rotate and drive the two fixed blocks 19 to move close and simultaneously drive the two second linkage arms 18 to rotate, the two fixed blocks 19 move close and fix the volute to be welded for position limiting, at this time the volute can be welded.

[0037] To sum up: the volute welding positioning device, through the coordinated use of the base 1, the adjustment structure 2 and the positioning structure 11, solves the problem that when the fan volute is welded, it may be offset due to its uneven surface, making it difficult to accurately connect the weld, resulting in defects such as unfusion, slag inclusions, and pores in the weld, thereby affecting the overall structure and performance of the fan volute.

[0038] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A spiral casing welding positioning device, comprising a base (1), an adjustment structure (2) and a positioning structure (11), characterized in that: An opening (101) is provided at the top of the base (1), an adjustment structure (2) is provided inside the base (1), the top of the adjustment structure (2) extends to the surface of the opening (101), and a positioning structure (11) is provided at the top of the adjustment structure (2).

2. A spiral casing welding positioning device according to claim 1, characterized in that: The adjustment structure (2) comprises two sliding arms (3), the two ends of the two sliding arms (3) being fixedly connected to the left and right sides of the inner wall of the base (1) respectively, the bottom of the two sliding arms (3) being provided with a synchronous gear (4), the bottom of the synchronous gear (4) being rotatably connected to the bottom of the inner wall of the base (1) via a rotating shaft, the surfaces of the two sliding arms (3) being sleeved with a moving arm (6), and the front surfaces of the two sliding arms (3) being provided with a main screw (5).

3. A spiral casing welding positioning device according to claim 2, characterized in that: The two ends of the main screw (5) are rotatably connected to the left and right sides of the inner wall of the base (1), respectively; the left side of the main screw (5) extends and penetrates the surface of the base (1); the left side of the main screw (5) is fixedly connected to a handle (7); and the surface of the main screw (5) is threadedly connected to a main sleeve (8).

4. A spiral casing welding positioning device as claimed in claim 2, characterized in that: Two movable arms (6) are provided, the inner walls of the two movable arms (6) are respectively sleeved on the surfaces of the two sliding arms (3), the tops of the two sliding arms (3) are respectively sleeved on the surface of the opening (101), the bottoms of the two movable arms (6) are respectively fixedly connected with movable plates (9), a plurality of grooves (10) are respectively provided on the sides of the two movable plates (9) close to each other, the two movable plates (9) are respectively meshed with the synchronous gears (4) through the grooves (10), and the front surface of the front movable arm (6) is fixedly connected with the main sleeve (8).

5. A spiral casing welding positioning device as claimed in claim 2, characterized in that: The positioning structure (11) comprises a fixed shell (12), the bottom of the fixed shell (12) being fixedly connected to the top of the movable arm (6), a linkage rod (13) being provided on a side of the fixed shell (12) away from the movable arm (6), the linkage rod (13) extending from one end close to the fixed shell (12) and penetrating the surface of the fixed shell (12), a linkage block (14) being provided at one end of the linkage rod (13) extending into the fixed shell (12), and a fixed spring (15) being sleeved on the surface of one end of the linkage rod (13) extending into the fixed shell (12).

6. A spiral casing welding positioning device according to claim 5, characterized in that: The inner wall of the linkage block (14) is fixedly connected to the surface of the linkage rod (13) extending into one end of the fixed housing (12); the front and rear sides of the linkage block (14) are rotatably connected to the rotating rods (16) via rotating shafts; the two ends of the fixed spring (15) are respectively fixedly connected to the sides of the linkage block (14) and the inner wall of the fixed housing (12) close to each other; the ends of the two rotating rods (16) away from the linkage rod (13) are rotatably connected to the first linkage arm (17) via rotating shafts.

7. A spiral casing welding positioning device according to claim 6, characterized in that: The middle of the two first linkage arms (17) are rotatably connected to the inner wall of the fixed housing (12) via a rotating shaft, and two second linkage arms (18) are respectively arranged on the sides of the two first linkage arms (17) close to each other. The ends of the two second linkage arms (18) close to the linkage rod (13) are rotatably connected to the inner wall of the fixed housing (12) via a rotating shaft, and the ends of the front first linkage arm (17) and the front second linkage arm (18) away from the fixed housing (12) are rotatably connected to a fixed block (19) via a rotating shaft, and the ends of the rear first linkage arm (17) and the rear second linkage arm (18) away from the fixed housing (12) are rotatably connected to the fixed block (19) via a rotating shaft.

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