Fixture for brazing fuel manifold

Abstract

The invention relates to the technical field of brazing clamps, in particular to a fuel manifold brazing clamp which comprises a driving mechanism located on a workbench, and the driving mechanism comprises an electric rail installed on the workbench and an electric sliding plate sliding on the electric rail. A first clamping mechanism for clamping the outer side of one end of the fuel oil main pipe is installed at one end of the electric rail, a second clamping mechanism matched with the first clamping mechanism to clamp the inner side of one end of the fuel oil main pipe is installed on the electric sliding plate, and a third clamping mechanism for clamping the two sides of the fuel oil main pipe is installed on the electric sliding plate. According to the clamp for brazing of the fuel main pipe, the two sides of the fuel main pipe can be clamped through the second clamping disc and the third clamping disc, one end of the fuel main pipe is clamped in cooperation with the clamping plate and the first clamping disc, and therefore multiple positions of the U-shaped fuel main pipe can be clamped, the stability of the two sides of the fuel main pipe is further improved, and the welding quality of the fuel main pipe is improved. And consistency is guaranteed, and the brazing quality is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of brazing fixtures, and specifically to a fixture for brazing a fuel manifold. Background Art

[0002] The fuel manifold is an important component of an engine. All the fuel required for the engine to operate needs to be transported through the manifold. Therefore, the component welding process of the parts is particularly important. After brazing, technical issues such as fuel flow rate, fuel distribution uniformity, and spray quality of the parts need to be ensured; Currently, during the brazing of fuel manifolds: Since some fuel manifolds are U-shaped, it is impossible to ensure the same stability on both sides of the fuel manifold during brazing. As a result, the joint position is inaccurate and the mating gap is uneven during the brazing process, thereby reducing the brazing quality and efficiency. Summary of the Invention

[0003] The purpose of the present invention is to provide a fixture for brazing a fuel manifold, which can clamp both sides of the fuel manifold through the second clamping disk and the third clamping disk, and cooperate with the clamping plate and the first clamping disk to clamp one end of the fuel manifold. Thus, multiple clamps on the U-shaped fuel manifold can be achieved, further improving the stability of both sides of the fuel manifold and ensuring consistency, and improving the brazing quality.

[0004] To achieve the above purpose, the present invention provides the following technical solution: A fixture for brazing a fuel manifold, including a driving mechanism located on a workbench. The driving mechanism includes an electric track installed on the workbench and an electric slide plate sliding on the electric track. One end of the electric track is installed with a first clamping mechanism for clamping the outer side of one end of the fuel manifold, and the electric slide plate is installed with a second clamping mechanism for cooperating with the first clamping mechanism to clamp the inner side of one end of the fuel manifold. The electric slide plate is installed with a third clamping mechanism for clamping both sides of the fuel manifold. The third clamping mechanism includes a detection table that moves with the electric slide plate, and a second clamping disk and a third clamping disk for clamping the inner and outer sides of both sides of the fuel manifold are rotatably arranged on the detection table; A detection mechanism for pre-detecting the quality of the fuel manifold in cooperation with the second clamping disk and the third clamping disk is arranged on the second clamping mechanism.

[0005] Preferably, a bracket is fixedly installed on the electric slide plate.

[0006] Preferably, the first clamping mechanism includes a first support installed at one end of the electric track, and a clamping plate is detachably installed on the first support.

[0007] Preferably, a first base is fixed to the bottom of the electric slide plate. A plug-in frame is inserted into the first base. A telescopic frame is installed on the plug-in frame. One end of the telescopic frame is fixed with a first clamping disk. Through cylinders for penetrating the fuel manifold are installed at both ends of the top of the plug-in frame.

[0008] Preferably, a second base is movably installed on one side of the first base, a support column is fixed on the second base, the first clamping disc is detachably installed on the support column, and a placing table for placing a fuel manifold is installed on the support column.

[0009] Preferably, the inspection table is fixedly installed on one side of the bracket. A clamping block is provided at the top of the second clamping disc, a sliding block is rotatably provided at the top of the third clamping disc, a sliding groove for the sliding block to slide is provided on the inspection table, a fixing block is fixed at the top of the sliding block, a clamping rod is fixed on one side of the fixing block, one end of the clamping rod is C-shaped, and one end of the clamping rod is located outside the clamping block, and a moving rod is fixed on one side of the sliding block.

[0010] Preferably, a piston rod is fixed on the second base, one end of the piston rod is sleeved with a piston cylinder, the piston cylinder is fixed on the first base, and a first air pipe is communicated with the piston cylinder.

[0011] Preferably, one end of the first air pipe extends into the inspection table, and a sealing pipe communicated with the first air pipe is installed inside the sliding groove. One end of the moving rod slides inside the sealing pipe, and a one-way valve is arranged on the sealing pipe.

[0012] Preferably, one end of the first air pipe is also communicated with a second air pipe, one end of the second air pipe is communicated with a heat insulation air bag, and the heat insulation air bag is installed on the through cylinder.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: In the present invention, both sides of the fuel manifold are respectively located in the middle positions between the second clamping disc and the third clamping disc, and the second clamping disc and the third clamping disc are attached to the inner and outer sides of both sides of the fuel manifold; thus, both sides of the fuel manifold can be clamped by the second clamping disc and the third clamping disc, and the clamping plate and the first clamping disc are used to clamp one end of the fuel manifold, so that multiple clamps on the U-shaped fuel manifold can be realized, further improving the stability of both sides of the fuel manifold and ensuring consistency, and improving the quality of brazing.

[0014] The present invention utilizes the pressure sealed inside the piston cylinder to drive the piston rod to move, causing the piston rod to push the second base to move, and the second base then drives the support column to move. After the first clamping disc and the clamping plate clamp one end of the fuel manifold, the electric skateboard continuously drives the first base to move. At this time, the electric skateboard drives the inspection table to move through the bracket, causing the inspection table to move relative to the placement table. At this time, the placement table and the fuel manifold located on the placement table no longer move. When the inspection table moves, the second clamping disc and the third clamping disc will move along the inner and outer sides of both sides of the fuel manifold while rotating. Thus, while the second clamping disc and the third clamping disc move along the inner and outer sides of both sides of the fuel manifold, the third clamping disc can be used to detect the inner side of the fuel manifold, avoiding the inner sides of both sides of the fuel manifold from being concave or convex, which affects the brazing quality of the fuel manifold.

[0015] During the relative sliding process between the inspection table and the placement table of the present invention, the first base drives the piston cylinder to move, while the piston rod on the second base is stationary. At this time, the piston rod squeezes the gas inside the piston cylinder through the first ventilation pipe into the inside of the sealed pipe. The gas inside the sealed pipe will push the moving rod to move, the moving rod pushes the slider to move, and the slider pushes the third clamping disc, making the third clamping disc always fit the inner side of the fuel manifold. At the same time, the pressure inside the sealed pipe drives the third clamping disc to squeeze the inner side of the fuel manifold, enabling a certain pressure detection of the inner side of the fuel manifold, further improving the quality before brazing of the fuel manifold and enhancing the brazing quality of the fuel manifold. Description of the Drawings

[0016] Figure 1 It is the first overall structural schematic diagram of the present invention; Figure 2 It is the second overall structural schematic diagram of the present invention; Figure 3 It is the partial structural schematic diagram of the present invention; Figure 4 It is the first partial structural schematic diagram of the present invention; Figure 5 It is the second partial structural schematic diagram of the present invention; Figure 6 It is the first partial cross-sectional view of the present invention; Figure 7 It is the second partial cross-sectional view of the present invention; Figure 8 It is of the present invention Figure 7 The enlarged view of part A; Figure 9 It is the first partial cross-sectional view of the present invention; Figure 10 It is the second partial cross-sectional view of the present invention; Figure 11 It is the first partial structural schematic diagram of the part for clamping the fuel manifold of the present invention; Figure 12 This is the second partial structural schematic diagram of the clamping fuel manifold of the present invention.

[0017] In the figure: 1. Driving mechanism; 11. Electric track; 12. Electric skateboard; 13. Bracket; 2. First clamping mechanism; 21. First support; 22. Clamping plate; 3. Second clamping mechanism; 31. Placing table; 32. First clamping disc; 33. Telescopic frame; 34. Insertion frame; 35. Through cylinder; 36. First base; 37. Second base; 38. Pillar; 4. Third clamping mechanism; 41. Detection table; 42. Second clamping disc; 43. Third clamping disc; 44. Block; 45. Clamping rod; 46. Fixed block; 47. Moving rod; 5. Detection mechanism; 51. Piston rod; 52. Piston cylinder; 53. First ventilation pipe; 54. Sealing pipe; 55. Second ventilation pipe; 56. Heat insulation airbag. Specific implementation manners

[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed present invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0019] The present invention provides a fixture for brazing a fuel manifold, including a driving mechanism 1 located on a workbench. The driving mechanism 1 includes an electric track 11 installed on the workbench and an electric skateboard 12 sliding on the electric track 11. One end of the electric track 11 is installed with a first clamping mechanism 2 for clamping the outer side of one end of the fuel manifold. A second clamping mechanism 3 for cooperating with the first clamping mechanism 2 to clamp the inner side of one end of the fuel manifold is installed on the electric skateboard 12. A bracket 13 is fixedly installed on the electric skateboard 12. The first clamping mechanism 2 includes a first support 21 installed at one end of the electric track 11. A clamping plate 22 is detachably installed on the first support 21. A first base 36 is fixed to the bottom of the electric skateboard 12. An insertion frame 34 is inserted into the first base 36. A telescopic frame 33 is installed on the insertion frame 34. One end of the telescopic frame 33 is fixed with a first clamping disc 32. Through cylinders 35 for passing through the fuel manifold are installed at both ends of the top of the insertion frame 34. A second base 37 is movably installed on one side of the first base 36. A pillar 38 is fixed to the second base 37. The first clamping disc 32 is detachably installed on the pillar 38. A placing table 31 for placing the fuel manifold is installed on the pillar 38; Refer to Figures 1 to 5 and Figure 11 and Figure 12As shown in the figure, when brazing the fuel manifold, place the fuel manifold on the placement table 31. At the same time, fit the inner side of one end of the fuel manifold against the first clamping disc 32. Then, energize the electric skateboard 12 to slide on the electric track 11. The electric skateboard 12 drives the bracket 13 to move. At the same time, the electric skateboard 12 drives the first base 36 to move. The first base 36 drives the second base 37 to move. The second base 37 drives the support column 38 to move. The support column 38 drives the first clamping disc 32 to move, causing the first clamping disc 32 to drive the fuel manifold to move, bringing the fuel manifold closer to the clamping plate 22. Finally, the inner and outer sides of one end of the fuel manifold are respectively squeezed by the first clamping disc 32 and the clamping plate 22. Thus, the one end of the fuel manifold can be quickly clamped. Additionally, according to the size of the fuel manifold, the sizes of the clamping plate 22 and the first clamping disc 32 can be adjusted to handle fuel manifolds of different sizes, improving the clamping flexibility. A third clamping mechanism 4 for clamping both sides of the fuel manifold is installed on the electric skateboard 12. The third clamping mechanism 4 includes a detection table 41 that moves with the electric skateboard 12. A second clamping disc 42 and a third clamping disc 43 for clamping the inner and outer sides of both sides of the fuel manifold are rotatably arranged on the detection table 41. The detection table 41 is fixedly installed on one side of the bracket 13. A clamping block 44 is provided at the top of the second clamping disc 42. A sliding block is rotatably arranged at the top of the third clamping disc 43. A sliding groove for the sliding block to slide is provided on the detection table 41. A fixing block 46 is fixed at the top of the sliding block. A clamping rod 45 is fixed on one side of the fixing block 46. One end of the clamping rod 45 is C-shaped, and one end of the clamping rod 45 is located outside the clamping block 44. A moving rod 47 is fixed on one side of the sliding block. Refer to Figures 3 to 10 As shown in the figure, after placing the fuel manifold on the placement table 31, both sides of the fuel manifold are respectively located in the middle positions between the second clamping disc 42 and the third clamping disc 43. During the movement of the fuel manifold following the electric skateboard 12, the second clamping disc 42 and the third clamping disc 43 will be in contact with the inner and outer sides of both sides of the fuel manifold. Thus, the second clamping disc 42 and the third clamping disc 43 can clamp both sides of the fuel manifold, cooperating with the clamping plate 22 and the first clamping disc 32 to clamp one end of the fuel manifold. Thus, multiple clamps on the U-shaped fuel manifold can be achieved, further improving the stability of both sides of the fuel manifold and ensuring consistency, improving the quality of brazing.

[0020] A detection mechanism 5 for pre-detecting the quality of the fuel manifold in cooperation with the second clamping disc 42 and the third clamping disc 43 is provided on the second clamping mechanism 3; a piston rod 51 is fixed on the second base 37, one end of the piston rod 51 is sleeved with a piston cylinder 52, the piston cylinder 52 is fixed on the first base 36, a first air pipe 53 is communicated with the piston cylinder 52, one end of the first air pipe 53 extends into the interior of the detection table 41, and a sealing pipe 54 communicated with the first air pipe 53 is installed inside the sliding groove. One end of the moving rod 47 slides inside the sealing pipe 54, a one-way valve is provided on the sealing pipe 54, and one end of the first air pipe 53 is also communicated with a second air pipe 55. One end of the second air pipe 55 is communicated with a heat insulation air bag 56, and the heat insulation air bag 56 is installed on the through cylinder 35; Refer to Figures 4 to 8 As shown, while the first base 36 moves, the first base 36 drives the piston cylinder 52 to move. Since one end of the piston rod 51 is inside the piston cylinder 52 and makes its interior sealed, when the piston cylinder 52 moves, the piston rod 51 is driven to move by the pressure sealed inside the piston cylinder 52, so that the piston rod 51 pushes the second base 37 to move, and the second base 37 thus drives the support column 38 to move. After the first clamping disc 32 and the clamping plate 22 clamp one end of the fuel manifold, the electric slide 12 continuously drives the first base 36 to move. At this time, the electric slide 12 drives the detection table 41 to move through the bracket 13, so that the detection table 41 and the placement table 31 move relatively. At this time, the placement table 31 and the fuel manifold located on the placement table 31 no longer move. When the detection table 41 moves, the second clamping disc 42 and the third clamping disc 43 will rotate while moving along the inner and outer sides of both sides of the fuel manifold. Thus, while the second clamping disc 42 and the third clamping disc 43 move along the inner and outer sides of both sides of the fuel manifold, the third clamping disc 43 can be used to detect the inner side of the fuel manifold to avoid the inner sides of both sides of the fuel manifold being sunken or protruding, which affects the brazing quality of the fuel manifold; once the inner sides of both sides of the fuel manifold are sunken or protruding, the third clamping disc 43 will change with the sunken or protruding position. The third clamping disc 43 moves inside the sliding groove through the slider above. Refer to Figure 8 As shown, at this time, the slider drives the clamping rod 45 to move through the fixed block 46, and one end of the clamping rod 45 will be stuck with the block 44 above the second clamping disc 42, so that the second clamping disc 42 cannot rotate. Thus, the staff can observe the rotation state of the second clamping disc 42 or the moving amplitude of the clamping rod 45 to visually judge the quality of the inner side of the fuel manifold. The outer side of the fuel manifold can be judged by the naked eye of the staff; thus, by using the cooperation of the second clamping disc 42 and the third clamping disc 43, the quality of the fuel manifold can be automatically detected during the process of quickly clamping the fuel manifold, further improving the brazing quality of the fuel manifold.

[0021] Working principle: When brazing the fuel manifold, place the fuel manifold on the placement table 31. At the same time, fit the inner side of one end of the fuel manifold against the first clamping disc 32. Then, energize to drive the electric slide 12 to slide on the electric track 11. The electric slide 12 drives the bracket 13 to move. At the same time, the electric slide 12 drives the first base 36 to move. While the first base 36 is moving, the first base 36 drives the piston cylinder 52 to move. Since one end of the piston rod 51 is inside the piston cylinder 52 and makes its interior sealed, when the piston cylinder 52 moves, the pressure sealed inside the piston cylinder 52 is used to drive the piston rod 51 to move, so that the piston rod 51 pushes the second base 37 to move. The second base 37 then drives the support column 38 to move. The support column 38 drives the first clamping disc 32 to move, so that the first clamping disc 32 drives the fuel manifold to move, making the fuel manifold approach the clamping plate 22. Finally, both the inner and outer sides of one end of the fuel manifold are squeezed by the first clamping disc 32 and the clamping plate 22 respectively. Thus, one end of the fuel manifold can be quickly clamped. Additionally, according to the size of the fuel manifold, the sizes of the clamping plate 22 and the first clamping disc 32 can be adjusted to cope with fuel manifolds of different sizes and improve the clamping flexibility. After the first clamping disc 32 and the clamping plate 22 clamp one end of the fuel manifold, the electric slide 12 continuously drives the first base 36 to move. At this time, the electric slide 12 drives the inspection table 41 to move through the bracket 13, causing the inspection table 41 to move relative to the placement table 31. At this time, the placement table 31 and the fuel manifold located on the placement table 31 no longer move. After placing the fuel manifold on the placement table 31, both sides of the fuel manifold are respectively located in the middle positions between the second clamping disc 42 and the third clamping disc 43. During the process of the fuel manifold following the electric slide 12 to move, the second clamping disc 42 and the third clamping disc 43 will fit against the inner and outer sides of both sides of the fuel manifold. Thus, both sides of the fuel manifold can be clamped by the second clamping disc 42 and the third clamping disc 43, cooperating with the clamping of one end of the fuel manifold by the clamping plate 22 and the first clamping disc 32, so as to clamp multiple places of the U-shaped fuel manifold. When the inspection table 41 moves, the second clamping disc 42 and the third clamping disc 43 will rotate while moving along the inner and outer sides of both sides of the fuel manifold. Thus, while the second clamping disc 42 and the third clamping disc 43 are moving along the inner and outer sides of both sides of the fuel manifold, the third clamping disc 43 can be used to inspect the inner side of the fuel manifold to prevent the inner sides of both sides of the fuel manifold from being sunken or protruding, which may affect the brazing quality of the fuel manifold. Once the inner sides of both sides of the fuel manifold are sunken or protruding, the third clamping disc 43 will change following the sunken or protruding positions. The third clamping disc 43 moves through the slider above in the chute. Refer to Figure 8As shown, at this time, the slider drives the clamping rod 45 to move through the fixed block 46. One end of the clamping rod 45 will be stuck to the block 44 above the second clamping disc 42, making the second clamping disc 42 unable to rotate. Thus, the staff can observe the rotation state of the second clamping disc 42 or the moving range of the clamping rod 45 to visually judge the quality inside the fuel manifold. The outside of the fuel manifold can be judged by the naked eye of the staff.

[0022] In addition, during the relative sliding process between the detection table 41 and the placement table 31, the first base 36 drives the piston cylinder 52 to move, while the piston rod 51 on the second base 37 remains stationary. At this time, the piston rod 51 squeezes the gas inside the piston cylinder 52 into the inside of the sealing tube 54 through the first air pipe 53. The gas inside the sealing tube 54 will push the moving rod 47 to move. The moving rod 47 pushes the slider to move, and the slider pushes the third clamping disc 43, so that the third clamping disc 43 always fits against the inside of the fuel manifold. At the same time, the pressure inside the sealing tube 54 drives the third clamping disc 43 to squeeze the inside of the fuel manifold, and a certain pressure detection can be carried out on the inside of the fuel manifold, further improving the quality of the fuel manifold before brazing and improving the brazing quality of the fuel manifold. In addition, a part of the gas inside the first air pipe 53 is squeezed into the inside of the second air pipe 55. The gas inside the second air pipe 55 enters the inside of the heat insulation airbag 56 to make the heat insulation airbag 56 expand. Since the insertion frame 34 moves with the first base 36, the through tube 35 on the insertion frame 34 will be sleeved on the fuel manifold. At this time, the expanded heat insulation airbag 56 wraps the fuel manifold, and the brazing position of the fuel manifold can be segmented, reducing the influence of the heat diffusion of the brazing position on the non-brazing area.

[0023] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fixture for brazing a fuel manifold, comprising a driving mechanism (1) located on a workbench, characterized in that, The driving mechanism (1) includes an electric track (11) installed on the workbench and an electric skateboard (12) sliding on the electric track (11). One end of the electric track (11) is installed with a first clamping mechanism (2) for clamping the outer side of one end of the fuel manifold. A second clamping mechanism (3) for cooperating with the first clamping mechanism (2) to clamp the inner side of one end of the fuel manifold is installed on the electric skateboard (12). A third clamping mechanism (4) for clamping both sides of the fuel manifold is installed on the electric skateboard (12). The third clamping mechanism (4) includes a detection table (41) that moves with the electric skateboard (12). A second clamping disc (42) and a third clamping disc (43) for clamping the inner and outer sides of both sides of the fuel manifold are rotatably arranged on the detection table (41). A detection mechanism (5) for pre-detecting the quality of the fuel manifold in cooperation with the second clamping disc (42) and the third clamping disc (43) is arranged on the second clamping mechanism (3).

2. The fixture for brazing of a fuel manifold according to claim 1, wherein A bracket (13) is fixedly installed on the electric skateboard (12).

3. The fixture for brazing a fuel manifold according to claim 1, wherein, The first clamping mechanism (2) includes a first support (21) installed at one end of the electric track (11), and a clamping plate (22) is detachably installed on the first support (21).

4. A fixture for brazing a fuel manifold, according to claim 2, characterized in that A first base (36) is fixed to the bottom of the electric skateboard (12). A plug-in frame (34) is inserted into the first base (36). A telescopic frame (33) is installed on the plug-in frame (34). One end of the telescopic frame (33) is fixed with a first clamping disc (32). Through cylinders (35) for passing through the fuel manifold are installed at both ends of the top of the plug-in frame (34).

5. A fixture for brazing a fuel manifold, according to claim 4, characterized in that, A second base (37) is movably installed on one side of the first base (36). A support column (38) is fixed on the second base (37). The first clamping disc (32) is detachably installed on the support column (38). A placement table (31) for placing the fuel manifold is installed on the support column (38).

6. The fixture for brazing a fuel manifold according to claim 5, wherein The detection table (41) is fixedly installed on one side of the bracket (13). A block (44) is provided at the top of the second clamping disc (42). A slider is rotatably arranged at the top of the third clamping disc (43). A sliding groove for the slider to slide is provided on the detection table (41). A fixing block (46) is fixed to the top of the slider. A clamping rod (45) is fixed to one side of the fixing block (46). One end of the clamping rod (45) is C-shaped, and one end of the clamping rod (45) is located outside the block (44). A moving rod (47) is fixed to one side of the slider.

7. A fixture for brazing a fuel manifold, according to claim 6, wherein A piston rod (51) is fixed on the second base (37). One end of the piston rod (51) is sleeved with a piston cylinder (52). The piston cylinder (52) is fixed on the first base (36). A first ventilation pipe (53) is communicated with the piston cylinder (52).

8. A fixture for brazing a fuel manifold, according to claim 7, wherein One end of the first ventilation pipe (53) extends into the interior of the detection table (41), and a sealing pipe (54) communicated with the first ventilation pipe (53) is installed inside the sliding groove. One end of the moving rod (47) slides inside the sealing pipe (54), and a one-way valve is arranged on the sealing pipe (54).

9. A fixture for brazing a fuel manifold, as claimed in claim 7, wherein One end of the first ventilation pipe (53) is also communicated with a second ventilation pipe (55), one end of the second ventilation pipe (55) is communicated with a heat insulation air bag (56), and the heat insulation air bag (56) is installed on the through cylinder (35).

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