Heat exchange steel pipe structure welding tool for heat exchanger

Abstract

The utility model relates to a heat exchange steel pipe structure welding tool for a heat exchanger, which comprises a working table, the front side of the working table is fixedly connected with a lower abutting seat, the working table is provided with a rear seat on the rear side of the lower abutting seat, the left side of the lower abutting seat is connected with an upper abutting plate through a hinge, and the upper abutting plate is connected with a lower abutting seat through a hinge. The lower abutting seat and the upper abutting plate are respectively provided with a plurality of corresponding cambered surface grooves, the rear side of the rear seat is connected with a rear pressing seat through a hinge, and the rear seat and the rear pressing seat are respectively provided with a plurality of corresponding cambered surface U-shaped grooves. One end, which does not need to be welded, of a U-shaped pipe in a heat exchange steel pipe structure is placed in the cambered surface U-shaped groove of the rear seat, one end, which is close to welding, of the U-shaped pipe is placed in the cambered surface groove of the lower abutting seat, then the rear pressing seat is pressed on the rear seat, and the upper abutting plate is pressed on the lower abutting seat, so that the U-shaped pipe is effectively fixed very conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of welding tooling, in particular to a welding tooling for a heat exchange steel pipe structure used in a heat exchanger. Background Art

[0002] The existing heat exchanger generally includes a heat exchange steel pipe and fins fixed in parallel on the heat exchange steel pipe, wherein the heat exchange steel pipe as a whole is usually in a spiral structure, and in order to enable the fins to be fixed to the heat exchange steel pipe, the heat exchange steel pipe is usually composed of several parts, such as Figure 1 and Figure 2 As shown, the heat exchange steel pipe generally includes a plurality of U-shaped tubes 18, U-shaped joints 19 and coolant inlet joints 20. When welding, the fins 21 are first put on the U-shaped tubes 18, and then the U-shaped joints 19 and the coolant inlet joints 20 are welded to the U-shaped tubes 18.

[0003] During the welding process, it is best to fix the U-shaped tube in the heat exchange steel pipe to reduce the impact of shaking on the welding of the heat exchange steel pipe. However, since the fins have been fixed on the U-shaped tube at this time, and the shape of the heat exchange steel pipe is serpentine, it is more troublesome to fix it with the existing tooling. In view of the above problems, the present application improves the heat exchange steel pipe structure welding tooling. Utility Model Content

[0004] The utility model provides a heat exchange steel pipe structure welding tool for a heat exchanger, which is convenient for fixing the heat exchange steel pipe and the heat exchange steel pipe structure, and solves the above problems existing in the use process of the prior art.

[0005] The technical solution of the utility model is achieved as follows: a heat exchange steel pipe structure welding tool for a heat exchanger, comprising a workbench, a lower butt seat is fixedly connected to the front side of the workbench, a rear seat is provided on the rear side of the lower butt seat, an upper butt plate is connected to the left side of the lower butt seat by a hinge, a plurality of corresponding arc grooves are provided on the lower butt seat and the upper butt plate, a rear pressure seat is connected to the rear side of the rear pressure seat by a hinge, and a plurality of corresponding arc U-shaped grooves are provided on the rear seat and the rear pressure seat.

[0006] Preferably, the lower abutment seat and the upper abutment plate are both provided with a first soft rubber layer in the arc surface groove, and the rear seat and the rear pressure seat are both provided with a second soft rubber layer in the arc surface U-shaped groove.

[0007] Preferably, the rear seat is movably arranged on a workbench, and an adjusting device for driving the rear seat to move forward and backward is provided on the workbench.

[0008] Preferably, the adjusting device includes a screw rod, a nut seat and a handwheel. A support seat is provided on the rear side of the workbench. The rear end of the screw rod is rotatably connected to the support seat, the front end of the screw rod is rotatably connected to the lower support seat, the nut seat is fixedly connected to the rear seat, the nut seat cooperates with the screw rod thread, and the handwheel is fixedly connected to the screw rod.

[0009] Preferably, the workbench is fixedly connected with guide rails on both the left and right sides of the screw rod, the guide rails extend from rear to front, and the rear seat is provided with a slider slidably arranged on the guide rails.

[0010] Preferably, a support frame is fixedly connected to the rear seat.

[0011] Preferably, buckles are provided on the right sides of the lower stop seat and the upper stop plate.

[0012] In summary, the beneficial effects of the present invention are:

[0013] 1. When fixing the heat exchange steel pipe structure, the utility model can place the end of the U-shaped pipe in the heat exchange steel pipe structure that does not need to be welded in the arc-surface U-shaped groove of the rear seat, and place the end of the U-shaped pipe close to welding in the arc-surface groove of the lower support seat. The position where the U-shaped pipe, the U-shaped joint and the coolant inlet joint are to be welded is located on the front side of the lower support seat. Then, the rear pressure seat is pressed on the rear seat, and the upper support plate is pressed on the lower support seat, so that the U-shaped pipe is effectively fixed. After the U-shaped joint and the coolant inlet joint are inserted into the U-shaped pipe, welding can be carried out. The present application is convenient for fixing the U-shaped pipe and the placement is stable.

[0014] 2. The rear seat in the utility model can be movable, and the front and rear positions can be adjusted by the adjusting device, so it can be adjusted according to the heat exchange steel pipes of different lengths, and has a wider applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 It is a schematic diagram of the structure in which the fins are fixed on the heat exchange steel tube;

[0017] Figure 2 It is a schematic diagram of the structural explosion of the heat exchange steel pipe;

[0018] Figure 3 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 4 It is a schematic diagram of the structure of the utility model when observed from the rear side;

[0020] Figure 5 It is a structural schematic diagram of a heat exchange steel pipe placed on the utility model.

[0021] In the figure: 1. workbench; 2. lower support seat; 3. rear seat; 4. upper support plate; 5. arc groove; 6. rear pressure seat; 7. arc U-shaped groove; 8. first soft rubber layer; 9. second soft rubber layer; 10. screw rod; 11. nut seat; 12. hand wheel; 13. support seat; 14. guide rail; 15. slider; 16. support frame; 17. buckle; 18. U-shaped tube; 19. U-shaped joint; 20. coolant inlet joint; 21. fin. DETAILED DESCRIPTION

[0022] The following will be combined with the attached embodiment of the utility model Figure 1-5 , clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Example:

[0024] like Figures 1 to 5 As shown, the utility model discloses a heat exchange steel pipe structure welding tool for a heat exchanger, including a workbench 1, a lower support seat 2 is fixedly connected to the front side of the workbench 1, and in addition, the workbench 1 is provided with a rear seat 3 on the rear side of the lower support seat 2, and an upper support plate 4 is hingedly connected to the left side of the lower support seat 2, and the hinging method can be hinged by hinges, etc., wherein, the lower support seat 2 and the upper support plate 4 are both provided with a plurality of corresponding arc grooves 5, and the rear side of the rear seat 3 is hingedly connected to a rear pressure seat 6, and the rear seat 3 and the rear pressure seat 6 are both provided with a plurality of corresponding arc U-shaped grooves 7, and one arc U-shaped groove 7 just forms a group with two arc grooves 5 for placing a U-shaped tube 18.

[0025] In order to prevent the U-shaped tube 18 from being damaged by compression when the U-shaped tube 18 is fixed in the utility model, the lower stop seat 2 and the upper stop plate 4 are both provided with a first soft rubber layer 8 in the arc groove 5, and the rear seat 3 and the rear pressure seat 6 are both provided with a second soft rubber layer 9 in the arc U-shaped groove 7. The first soft rubber layer 8 and the second soft rubber layer 9 are in contact with the U-shaped tube 18, so that damage to the U-shaped tube 18 can be avoided.

[0026] When the utility model fixes the heat exchange steel pipe structure, the U-shaped pipe 18 in the heat exchange steel pipe structure can be placed in the arc-shaped U-shaped groove 7 of the rear seat 3 without welding one end. Figure 5 As shown, the end of the U-shaped tube 18 close to welding is placed in the arc groove 8 of the lower retaining seat 2, the position where the U-shaped tube 18, the U-shaped joint 19 and the coolant inlet joint 20 are to be welded is located on the front side of the lower retaining seat 2, and the fin 21 is located between the lower retaining seat 2 and the rear seat 3, and then the rear pressing seat 6 is pressed on the rear seat 3, and the upper retaining plate 4 is pressed on the lower retaining seat 2, so that the U-shaped tube 18 is effectively fixed, and then the U-shaped joint 19 and the coolant inlet joint 20 are inserted into the U-shaped tube 18, and welding can be carried out. The present application is more convenient when fixing the U-shaped tube 18, and the placement is stable.

[0027] In the utility model, the rear seat 3 is movably arranged on the workbench 1, and the workbench 1 is provided with an adjustment device for driving the rear seat 3 to move forward and backward. When in use, the distance between the rear seat 3 and the lower support seat 2 can be adjusted according to the different lengths of the heat exchange steel pipes, thereby improving the applicability of the utility model.

[0028] Specifically, the adjusting device includes a screw rod 10, a nut seat 11 and a handwheel 12. A support seat 13 is provided on the rear side of the workbench 1. The rear end of the screw rod 10 is rotatably connected to the support seat 13, and the front end of the screw rod 10 is rotatably connected to the lower support seat 2, wherein the nut seat 11 is fixedly connected to the rear seat 3, and the nut seat 11 is threadedly matched with the screw rod 10. The handwheel 12 is fixedly connected to the screw rod 10. The rotation of the screw rod 10 can be controlled by rotating the handwheel 12. When the screw rod 10 rotates, the rear seat 3 can be driven to move forward and backward through the nut seat 11.

[0029] The specific structure of the rear seat 3 movably arranged on the workbench 1 is as follows: the workbench 1 is fixedly connected with guide rails 14 on both sides of the left and right sides of the screw rod 10, the guide rails 14 extend from rear to front, and a slider 15 slidably arranged on the guide rails 14 is provided on the rear seat 3.

[0030] In the present invention, a support frame 16 is fixedly connected to the rear seat 3 , and the support frame 16 can form abutment against the rear seat 3 when the rear seat 3 flips backward.

[0031] In the present invention, in order to fix the upper abutment plate 4 on the lower base when the upper abutment plate 4 is pressed on the lower abutment seat 2 , buckles 17 are provided on the right sides of the lower abutment seat 2 and the upper abutment plate 4 .

[0032] It should also be pointed out that the terms used in the present invention, such as "front", "rear", "vertical", "horizontal", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are only used to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A heat exchange steel pipe structure welding tool for a heat exchanger, comprising a workbench, characterized in that: The front side of the workbench is fixedly connected with a lower support seat, and the workbench is provided with a rear seat on the rear side of the lower support seat. The left upper hinge of the lower support seat is connected with an upper support plate, and the lower support seat and the upper support plate are both provided with a number of corresponding arc grooves. The rear side upper hinge of the rear seat is connected with a rear pressure seat, and the rear seat and the rear pressure seat are both provided with a number of corresponding arc U-shaped grooves.

2. The heat exchange steel pipe structure welding tool for heat exchanger according to claim 1, characterized in that: The lower abutment seat and the upper abutment plate are both provided with a first soft rubber layer in the arc surface groove, and the rear seat and the rear pressure seat are both provided with a second soft rubber layer in the arc surface U-shaped groove.

3. The heat exchange steel pipe structure welding tool for heat exchanger according to claim 2, characterized in that: The rear seat is movably arranged on a workbench, and an adjusting device for driving the rear seat to move forward and backward is arranged on the workbench.

4. The heat exchange steel pipe structure welding tool for a heat exchanger according to claim 3, characterized in that: The adjusting device includes a screw rod, a nut seat and a handwheel. A support seat is provided on the rear side of the workbench. The rear end of the screw rod is rotatably connected to the support seat, the front end of the screw rod is rotatably connected to the lower support seat, the nut seat is fixedly connected to the rear seat, the nut seat cooperates with the screw rod thread, and the handwheel is fixedly connected to the screw rod.

5. The heat exchange steel pipe structure welding tool for a heat exchanger according to claim 4, characterized in that: The workbench is fixedly connected with guide rails on both left and right sides of the screw rod. The guide rails extend from rear to front, and a slider slidably arranged on the guide rails is provided on the rear seat.

6. The heat exchange steel pipe structure welding tool for heat exchanger according to claim 1, characterized in that: A support frame is fixedly connected to the rear seat.

7. The heat exchange steel pipe structure welding tool for heat exchanger according to claim 1, characterized in that: Buckles are provided on the right sides of the lower abutment seat and the upper abutment plate.

Images