A welding aid

Abstract

The utility model relates to aeroengine frock technical field especially relates to a kind of welding auxiliary device, including bottom plate, the upper surface of the bottom plate is fixed with big end guide block and small end guide block between the big end guide block and the small end guide block is equipped with the clamping mechanism for fixing blade on the bottom plate;Small end positioning hole that is equipped with in the small end guide block is passed through the small end guide block, big end positioning hole that is equipped with in the big end guide block is passed through the big end guide block, and positioning rod is inserted in the big end positioning hole and the small end positioning hole all.The utility model has the beneficial effect that: blade can be fixed, reduce the movement of blade, improve welding quality and efficiency;By setting positioning rod, welding piece position can be accurately positioned, reduce the rework of part, shorten processing cycle, reduce the labor intensity of artificial, reduce manpower cost.

Description

Technical Field

[0001] This utility model relates to the field of aero-engine tooling technology, and in particular to a welding auxiliary device. Background Technology

[0002] The guide vanes require the welding of components such as the lower air intake nozzle 21, upper tube 23, upper air collection box 22, and borehole tube 24 to the outside of the large and small mounting plates. Figure 1 The diagram shows the blade and the parts to be welded. The lower air intake nozzle 21 is welded to the end face of the small mounting plate of the blade, and the upper air collection box 22 is welded to the end face of the large mounting plate of the blade. The upper tube 23 and the perforated tube 23 pass through the upper air collection box 22 and are welded and fixed to the upper air collection box 22.

[0003] The usual welding method is brazing, performed in a vacuum furnace. Before brazing, the parts to be welded need to be spot-welded to the blades. Traditional spot welding involves first mounting the blades on a pre-welded measuring tool, visually marking the position of the parts to be welded on the tool, then removing the blades and spot-welding the parts on a worktable. Because the outer surface of the mounting plate is an irregular curved surface, this leads to significant deviations in visually estimated position, inaccurate alignment, and multiple re-welding attempts, wasting costs. Furthermore, since the blades are not fixed in place, improper operation can easily cause them to move or twist, resulting in long welding times and low processing efficiency. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a welding auxiliary device that can accurately position the part to be welded and fix the blade, reduce welding errors, improve processing accuracy and efficiency, and is simple to operate and low in cost.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A welding auxiliary device includes a base plate. A large-end guide block and a small-end guide block are fixedly arranged at intervals on the upper surface of the base plate. A clamping mechanism for fixing a blade to the base plate is provided between the large-end guide block and the small-end guide block. A small-end positioning hole is provided through the small-end guide block, extending from the end of the small-end guide block away from the large-end guide block to the end facing the large-end guide block. A large-end positioning hole is provided through the large-end guide block, extending from the end of the large-end guide block away from the small-end guide block to the end facing the small-end guide block. A positioning rod is inserted into both the large-end positioning hole and the small-end positioning hole.

[0006] The beneficial effects of this utility model are: it can fix the blades, reduce blade movement, and improve welding quality and efficiency; by setting positioning rods, it can accurately position the welded parts, reduce rework and repair of parts, shorten the processing cycle, reduce the labor intensity of manual labor, and reduce labor costs.

[0007] Based on the above technical solution, the present invention can be further improved as follows.

[0008] Furthermore, a boss for supporting the blade mounting plate is fixedly provided on the bottom of the side of the small end guide block facing the large end guide block.

[0009] The beneficial effect of adopting the above-mentioned further solution is that the boss can support the end of the blade mounting plate and reduce the interference of the protrusion at the bottom of the blade mounting plate on the support of the blade.

[0010] Furthermore, a positioning block for supporting the blade mounting plate is fixedly provided at the bottom of the side of the large end guide block facing the small end guide block.

[0011] The beneficial effect of adopting the above-mentioned further solution is that the positioning block can support the end of the blade mounting plate and reduce the interference of the protrusion at the bottom of the blade mounting plate on the support of the blade.

[0012] Furthermore, the clamping mechanism includes a clamping assembly for applying downward pressure to the top of the blade, the clamping assembly being fixedly mounted on the base plate.

[0013] The beneficial effect of adopting the above-mentioned further solution is that the blade is pressed by the clamping assembly, and the top and bottom of the blade are clamped by the clamping assembly and the base plate, thus ensuring the stability of the blade fixation.

[0014] Furthermore, the clamping assembly includes a high hinge support and a low hinge support spaced apart. The bottom ends of both the high hinge support and the low hinge support are fixed to the base plate. The high hinge support and the low hinge support are respectively located on both sides between the large end guide block and the small end guide block. The top end of the high hinge support is hinged to one end of the flip plate, and the top end of the low hinge support is hinged to one end of the movable bolt. The other end of the flip plate is provided with a through hole for the movable bolt to pass through. The other end of the movable bolt passes through the through hole and is threadedly connected to a locking nut.

[0015] The beneficial effect of adopting the above-mentioned further solution is that the operation is convenient by flipping the flap and then locking it with the movable bolt and the locking nut.

[0016] Furthermore, the sidewall of the through hole extends to the outer side of the end of the flap that is away from the high hinge support.

[0017] The beneficial effects of adopting the above-mentioned further solution are: the flap moves in an arc trajectory during the flipping process away from the high hinge support, and the side wall of the through hole extends to the outer side of the end of the flap away from the high hinge support, thus avoiding interference between the movable bolt and the flap during the clamping process of the blade, which would affect the clamping effect.

[0018] Furthermore, the flap plate is provided with a threaded hole, and an adjusting bolt is threaded into the threaded hole. A pressure plate is provided below the flap plate, and the bottom end of the adjusting bolt is rotatably connected to the pressure plate.

[0019] The beneficial effect of adopting the above-mentioned further solution is that by adjusting the downward pressure of the pressure plate with adjusting bolts, the blades can be more accurately fixed.

[0020] Furthermore, the flip plate is provided with a guide hole, the axis of the guide hole is parallel to the axis of the threaded hole, a guide pin is provided in the guide hole, and the bottom end of the guide pin is fixedly connected to the pressure plate.

[0021] The beneficial effect of adopting the above-mentioned further solution is that the guide pin can prevent the pressure plate from rotating when adjusting the lifting and lowering of the pressure plate with the adjusting bolt.

[0022] Furthermore, a mounting base is provided on one side between the large end guide block and the small end guide block. The mounting base is fixedly mounted on the base plate, and a positioning pin is fixedly provided on the mounting base.

[0023] The beneficial effect of adopting the above-mentioned further solution is that the positioning pin can hold the blade basin against the large mounting plate and prevent the blade from moving.

[0024] Furthermore, the positioning rod includes a handheld part, a guide part, and a positioning part that are integrally and fixedly connected in sequence. The guide part is slidably disposed in the positioning hole at the large end or the positioning hole at the small end. The positioning part is disposed in the space between the high hinge support and the low hinge support. The end of the positioning part away from the guide part is provided with a frustum chamfer.

[0025] The beneficial effects of adopting the above-mentioned further solution are: the setting of the chamfer of the cone is conducive to the top of the mounting rod not protruding from the surface of the part to be welded, and further conducive to not interfering with the position to be welded. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the blade and the part to be welded according to this utility model;

[0027] Figure 2 This is a schematic diagram of the structure of this utility model;

[0028] Figure 3 This is a schematic diagram of the positioning rod in this utility model;

[0029] Figure 4 This is a schematic diagram of the working state of this utility model;

[0030] The attached diagram lists the components represented by each number as follows:

[0031] 1. Base plate; 2. Positioning block; 3. Large end guide block; 4. Small end guide block; 5. Positioning rod; 501. Handheld part; 502. Guide part; 503. Positioning part; 504. Conical chamfer; 6. Boss; 7. High hinge support; 8. Positioning pin; 9. Mounting base; 10. Adjusting bolt; 11. Flip plate; 12. Pressure plate; 13. Locking nut; 14. Movable bolt; 15. Connecting pin; 16. Guide pin; 17. Low hinge support; 18. Small end positioning hole; 19. Large end positioning hole; 20. Blade; 21. Lower guide nozzle; 22. Upper air collection box; 23. Upper tube; 24. Hole probe tube. Detailed Implementation

[0032] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0033] like Figure 1 The diagram shows the blade and the parts to be welded. The lower air intake nozzle 21 is welded to the end face of the small mounting plate of the blade, and the upper air collection box 22 is welded to the end face of the large mounting plate of the blade. The upper tube 23 and the perforated tube 23 pass through the upper air collection box 22 and are welded and fixed to the upper air collection box 22.

[0034] like Figure 2 As shown, an embodiment of this utility model includes a base plate 1. A large-end guide block 3 and a small-end guide block 4 are fixedly disposed at intervals on the upper surface of the base plate 1. A clamping mechanism for fixing the blade 20 to the base plate 1 is provided between the large-end guide block 3 and the small-end guide block 4. The small-end guide block 4 is provided with a small-end positioning hole 18 that penetrates the small-end guide block 4. The small-end positioning hole 18 extends from the end of the small-end guide block 4 away from the large-end guide block 3 to the end facing the large-end guide block 3. The large-end guide block 3 is provided with a large-end positioning hole 19 that penetrates the large-end guide block 3. The large-end positioning hole 19 extends from the end of the large-end guide block 3 away from the small-end guide block 4 to the end facing the small-end guide block 4. A positioning rod 5 is inserted into both the large-end positioning hole 19 and the small-end positioning hole 18.

[0035] The lower surface of the base plate 1 is provided with multiple support feet to raise the clamp, which helps to maintain a more suitable working distance during welding.

[0036] The bottom of the small-end guide block 4 facing the large-end guide block 3 is fixedly provided with a boss 6 for supporting the small mounting plate of the blade 20. The boss 6 can support the end of the small mounting plate of the blade 20 and reduce the interference of the protrusion at the bottom of the small mounting plate of the blade 20 with the support of the blade 20. The bottom of the large-end guide block 3 facing the small-end guide block 4 is fixedly provided with a positioning block 2 for supporting the large mounting plate of the blade 20. The positioning block 2 can support the end of the large mounting plate of the blade 20 and reduce the interference of the protrusion at the bottom of the large mounting plate of the blade 20 with the support of the blade 20.

[0037] like Figure 4 As shown, when clamping and fixing the blade 20, the ends of the large mounting plate and the small mounting plate of the blade 20 rest on the positioning block 2 and the boss 6, respectively. The large mounting plate and the small mounting plate of the blade 20 are provided with outward protruding edges near their ends. By setting the positioning block 2 and the boss 6, the edges can be suspended in the air, avoiding damage caused by directly placing the edges on the base plate 1 or unstable fixing of the blade 20.

[0038] In this embodiment of the invention, since the end sidewall of the mounting plate of the blade 20 is an arc surface, the positioning block 2 can be configured as a U-shaped structure to facilitate support with the arc sidewall and prevent the blade 20 from rotating or shifting. The width of both ends of the positioning block 2 is greater than or equal to 20mm, which helps to ensure positioning accuracy.

[0039] In the embodiments of this utility model, the boss 6 can be fixed on the small end guide block 4 or fixed on the base plate 1, and the positioning block 2 can be directly fixed on the large end guide block 3 or fixed on the base plate 1.

[0040] In an embodiment of this utility model, the clamping mechanism can be clamping blocks respectively disposed on both sides between the large end guide block 3 and the small end guide block 4. The clamping blocks are driven by a linear movement mechanism (such as a linear motor or cylinder) to clamp and fix both sides of the blade 20, or a screw adjustment mechanism is used to clamp and fix both sides of the blade 20.

[0041] Preferably, the clamping mechanism includes a clamping assembly for applying downward pressure to the top of the blade 20. The clamping assembly is fixedly installed on the base plate 1. The blade 20 is clamped by the clamping assembly, and the top and bottom of the blade 20 are clamped by the clamping assembly and the base plate 1 to ensure the stability of the blade 20.

[0042] Furthermore, the clamping assembly includes a high hinge support 7 and a low hinge support 17 spaced apart. The bottom ends of both the high hinge support 7 and the low hinge support 17 are fixed to the base plate 1. The high hinge support 7 and the low hinge support 17 are respectively located on both sides between the large end guide block 3 and the small end guide block 4. The top end of the high hinge support 7 is hinged to one end of the flip plate 11, and the top end of the low hinge support 17 is hinged to one end of the movable bolt 14. The other end of the flip plate 11 is provided with a through hole for the movable bolt 14 to pass through. The other end of the movable bolt 14 passes through the through hole and is threadedly connected to a locking nut 13. By flipping the flip plate 11 and then locking it with the movable bolt 14 and the locking nut 13, convenient operation is ensured.

[0043] The top of the high hinge support 7 is provided with a U-shaped groove. One end of the flap 11 is located in the U-shaped groove and is rotatably connected to the side wall of the U-shaped groove by a connecting pin 15, thereby achieving the hinge connection between the flap 11 and the high hinge support 7. The top of the low hinge support 17 is also provided with a U-shaped groove. One end of the movable bolt 14 is located in the U-shaped groove and is rotatably connected to the groove wall by a connecting pin 15, thereby achieving the hinge connection between the movable bolt 14 and the low hinge support 17.

[0044] The sidewall of the through hole extends to the outer side of the end of the flap 11 away from the high hinge support 7. The flap 11 moves in an arc trajectory during the flipping process away from the high hinge support 7. The sidewall of the through hole extends to the outer side of the end of the flap 11 away from the high hinge support 7 to avoid interference between the movable bolt 14 and the flap 11 during the clamping process of the blade 20, which would affect the clamping effect.

[0045] In other embodiments, the through hole can also be an oblong hole extending along the length direction, which can also prevent the movable bolt 14 and the flip plate 11 from interfering with each other during the locking process.

[0046] The flap 11 has a threaded hole, and an adjusting bolt 10 is threaded into the threaded hole. A pressure plate 12 is provided below the flap 11. The bottom end of the adjusting bolt 10 is rotatably connected to the pressure plate 12. Specifically, the top of the pressure plate 12 has a rotating hole, and the top of the pressure plate 12 has a limiting plate covering the rotating hole. The limiting plate is detachably fixed to the pressure plate 12 by bolts. The limiting plate has a connecting hole communicating with the rotating hole. The inner diameter of the connecting hole is smaller than the inner diameter of the rotating hole. The bottom end of the adjusting bolt 10 has a rotating part. The diameter of the rotating part is smaller than the rotating hole but larger than the connecting hole. The rotating part is rotatably disposed in the rotating hole. The limiting plate limits and positions the rotating part to disengage from the rotating hole. The adjusting bolt 10 adjusts the downward pressure of the pressure plate 12 to further achieve precise fixation of the blade 20.

[0047] The flap 11 is provided with a guide hole, the axis of which is parallel to the axis of the threaded hole. A guide pin 16 is provided in the guide hole, and the bottom end of the guide pin 16 is fixedly connected to the pressure plate 12. The guide pin 16 can prevent the pressure plate 12 from rotating when the adjusting bolt 10 adjusts the lifting and lowering of the pressure plate 12.

[0048] In other embodiments of this utility model, the clamping assembly may further include two clamping seats spaced apart and a clamping plate disposed on the top of the clamping seats. The two clamping seats are fixed on the base plate 1, and the two ends of the clamping plate are respectively connected to the two clamping seats by bolts. By adjusting the two bolts, the clamping plate can clamp the blade 20.

[0049] A mounting base 9 is provided on one side between the large end guide block 3 and the small end guide block 4. The mounting base 9 is fixedly mounted on the base plate 1. A positioning pin 8 is fixedly provided on the mounting base 9. The positioning pin 8 can hold the blade 20 against the large mounting plate to prevent the blade 20 from moving.

[0050] like Figure 3 As shown, the positioning rod 5 includes a handheld part 501, a guide part 502, and a positioning part 503, which are integrally and fixedly connected in sequence. The guide part 502 is slidably disposed within the large-end positioning hole 19 or the small-end positioning hole 18. The positioning part 503 is disposed towards the space between the high hinge support 7 and the low hinge support 17. The end of the positioning part 503 away from the guide part 502 has a truncated cone chamfer 504. The truncated cone chamfer 504 helps to prevent the top of the mounting rod from protruding from the surface of the part to be welded, and further helps to prevent interference with the welding position. During use, the operator can hold the handheld part 501 or use other positioning seats to position the positioning rod 5 to ensure the positioning of the part to be welded.

[0051] In the embodiments of this utility model, except for the positioning block 2, the other components on the base plate 1 can be made of 45 steel and heat-treated with HRC35-40. The positioning block 2 is made of CrWMn with higher wear resistance and heat-treated with HRC58-62 to ensure the service life of the entire device.

[0052] like Figure 4 As shown, during operation, the blade 20 is inserted between the large end guide block 3 and the small end guide block 4. The large mounting plate of the blade 20 abuts against the positioning block 2, the large mounting plate of the blade 20 abuts against the boss 6, and the large mounting plate of the blade 20 abuts against the positioning pin 8 on the side. Rotate the flip plate 11 so that the movable bolt 14 passes through the through hole on the flip plate 11 and is connected to the locking nut 13. Adjust the adjusting bolt 10 so that the two ends of the pressure plate 12 abut against the upper surface of the large and small mounting plates of the blade 20 to fix the blade 20.

[0053] Positioning rod 5 abuts against the lower exhaust nozzle 21, upper tube 23, and bore probe tube 24 to be welded. Upper tube 23 and bore probe tube 24 pass through upper gas collection box 22. The other side of upper gas collection box 22 abuts against the outside of the large mounting plate of blade 20, and the other side of lower exhaust nozzle abuts against the outside of the small mounting plate of blade 20. Then welding is performed.

[0054] This invention can precisely fix the position of the blade 20, reducing the movement and rotation of the blade 20, thereby improving welding quality and efficiency. The design of the new mounting rod and the small-end positioning hole 18 and large-end positioning hole 19 significantly improves welding quality. Precise positioning of the welded parts reduces rework and shortens the processing cycle. It not only reduces the labor intensity of workers but also lowers labor costs. The positioning and clamping stability is applicable to various positioning methods of the guide blade 20, improving the versatility and flexibility of the fixture.

[0055] In the description of this utility model, it should be understood that the terms "center", "length", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "inner", "outer", "circumferential", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the system or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0056] In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0057] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0058] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0059] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A welding aid, characterized in that Includes a base plate (1), on the upper surface of the base plate (1) are fixedly provided a large end guide block (3) and a small end guide block (4) at intervals, and a clamping mechanism for fixing the blade (20) on the base plate (1) is provided between the large end guide block (3) and the small end guide block (4); the small end guide block (4) is provided with a small end positioning hole (18) that penetrates the small end guide block (4), the small end positioning hole (18) extends from the end of the small end guide block (4) away from the large end guide block (3) to the end facing the large end guide block (3), the large end guide block (3) is provided with a large end positioning hole (19) that penetrates the large end guide block (3), the large end positioning hole (19) extends from the end of the large end guide block (3) away from the small end guide block (4) to the end facing the small end guide block (4), and a positioning rod (5) is inserted in both the large end positioning hole (19) and the small end positioning hole (18).

2. A welding aid as defined in claim 1, wherein The bottom of the small end guide block (4) facing the large end guide block (3) is fixed with a boss (6) for supporting the blade mounting plate.

3. A welding aid as defined in claim 1, wherein, The bottom of the large end guide block (3) facing the small end guide block (4) is fixedly provided with a positioning block (2) for supporting the blade mounting plate.

4. A welding aid as defined in claim 1, wherein, The clamping mechanism includes a clamping assembly for applying downward pressure to the top of the blade (20), the clamping assembly being fixedly mounted on the base plate (1).

5. A welding aid as defined in claim 4, wherein, The clamping assembly includes a high hinge support (7) and a low hinge support (17) spaced apart. The bottom ends of the high hinge support (7) and the low hinge support (17) are fixed on the base plate (1). The high hinge support (7) and the low hinge support (17) are respectively located on both sides between the large end guide block (3) and the small end guide block (4). The top end of the high hinge support (7) is hinged to one end of the flip plate (11), and the top end of the low hinge support (17) is hinged to one end of the movable bolt (14). The other end of the flip plate (11) is provided with a through hole for the movable bolt (14) to pass through. The other end of the movable bolt (14) is threaded through the through hole and connected to a locking nut (13).

6. A welding auxiliary device according to claim 5, characterized in that, The sidewall of the through hole extends to the outer side of the end of the flap (11) away from the high hinge support (7).

7. A welding auxiliary device according to claim 5 or 6, characterized in that, The flap (11) is provided with a threaded hole, and an adjusting bolt (10) is threadedly connected in the threaded hole. A pressure plate (12) is provided below the flap (11), and the bottom end of the adjusting bolt (10) is rotatably connected to the pressure plate (12).

8. A welding auxiliary device according to claim 7, characterized in that, The flap (11) is provided with a guide hole, the axis of the guide hole is parallel to the axis of the threaded hole, and a guide pin (16) is provided in the guide hole. The bottom end of the guide pin (16) is fixedly connected to the pressure plate (12).

9. A welding auxiliary device according to any one of claims 1 to 6, characterized in that, A mounting base (9) is provided on one side between the large end guide block (3) and the small end guide block (4). The mounting base (9) is fixedly mounted on the base plate (1), and a positioning pin (8) is fixedly mounted on the mounting base (9).

10. A welding auxiliary device according to any one of claims 1 to 6, characterized in that, The positioning rod (5) includes a handheld part (501), a guide part (502) and a positioning part (503) that are integrally and fixedly connected in sequence. The guide part (502) is slidably disposed in the large end positioning hole (19) or the small end positioning hole (18). The positioning part (503) is disposed in the space between the high hinge support (7) and the low hinge support (17). The end of the positioning part (503) away from the guide part (502) is provided with a frustum chamfer (504).

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