Compressor duct brazing welding equipment

Abstract

A compressor duct brazing welding device relates to the field of compressor duct brazing, comprising a hollow base frame and a rectangular surrounding beam fixedly installed directly above the hollow base frame, an electric telescopic rod fixedly installed on the inner wall of the side of the hollow base frame, the electric telescopic rod including a piston rod, the end face of the piston rod fixedly connected to a bellows, the end of the bellows facing away from the piston rod fixedly connected to a displacement rod, guide rail bearing rings fixedly installed on the inner walls on both sides of the hollow base frame through mounting parts, the guide rail bearing rings are located below the displacement rod and fit with the bottom outer wall at the end of the displacement rod, a clamping and fixing mechanism is provided on the piston rod and the rectangular surrounding beam is provided with a displacement adjustment mechanism, and the rectangular surrounding beam is connected to a welding assembly through the displacement adjustment mechanism. The device can fix and clamp ducts with different bending curvatures, and at the same time can adjust the welding assembly to move to different positions, which is facilitating welding operations.

Description

Technical Field

[0001] The invention relates to the field of compressor conduit brazing, in particular to a compressor conduit brazing welding device. Background Art

[0002] Brazing refers to a welding method in which the solder, which is lower than the melting point of the weldment, and the weldment are heated to the melting temperature of the solder at the same time, and then the gap between the solid workpieces is filled with liquid solder to connect the metals. When brazing, the oxide film and oil stains on the contact surface of the parent material must be removed first, so as to facilitate the capillary to function after the solder melts, thereby increasing the wettability and capillary fluidity of the solder. According to the melting point of the solder, brazing is divided into hard soldering and soft soldering. Brazing is often performed in the assembly of compressor ducts, but the existing welding device has a fixed clamping mechanism for fixing the duct. However, the ducts of different compressors have different shapes and bending arcs, so the existing device can only clamp one type of duct and cannot meet the clamping and fixation requirements of bent ducts. For this reason, we propose a compressor duct brazing welding device. Summary of the Invention

[0003] In view of the deficiencies in the prior art, the present invention provides a compressor duct brazing welding device to solve the above-mentioned problems.

[0004] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a compressor duct brazing welding device, comprising a hollow base frame and a rectangular beam fixedly installed directly above the hollow base frame, an electric telescopic rod fixedly installed on the inner wall of the side of the hollow base frame, the electric telescopic rod including a piston rod, the end face of the piston rod fixedly connected to a bellows, the end of the bellows facing away from the piston rod fixedly connected to a displacement rod, guide rail bearing rings are fixedly installed on the inner walls on both sides of the hollow base frame through mounting parts, the guide rail bearing rings are located below the displacement rod and fit with the bottom outer wall at the end of the displacement rod, the guide rail bearing rings, the displacement rod, the piston rod and the bellows constitute an radian adjustable pipe placement mechanism, the piston rod and the displacement rod are both provided with a clamping and fixing mechanism, a displacement adjustment mechanism is provided in the rectangular beam, and the rectangular beam is connected to a welding assembly located above the radian adjustable pipe placement mechanism through the displacement adjustment mechanism.

[0005] Preferably, the top outer wall of the electric telescopic rod is flush with the top of the hollow base frame, and the displacement rod, the electric telescopic rod and the bellows are located at the center line of the top of the hollow base frame.

[0006] Preferably, an annular guide rail groove is provided on the top outer wall of the guide rail bearing ring corresponding to the displacement rod, and an integrated limiting piece is provided on the bottom outer wall of the displacement rod away from the end of the bellows. The limiting piece is inserted into the annular guide rail groove and fits against the inner wall of the limiting piece.

[0007] Preferably, the displacement rod is located at the top center line of the guide rail bearing ring.

[0008] Preferably, the clamping and fixing mechanism includes a clamping block, an arc-shaped clamping plate and a threaded push rod. The clamping block is fixedly installed on the top outer wall of the piston rod near the port of the bellows and on the top outer wall of the displacement rod. The clamping block is provided with a clamping groove with openings on both sides and the top. Two groups of symmetrical threaded push rods are threadedly inserted at the center of the inner walls on both sides of the clamping groove. The threaded push rods extend on both sides of the side wall of the clamping block. The two groups of threaded push rods are located inside the clamping groove and two groups of arc-shaped clamping plates are rotatably installed on the end faces close to each other, and the two groups of arc-shaped clamping plates are symmetrical to each other.

[0009] Preferably, the displacement adjustment mechanism includes a threaded screw 1, a displacement block 1, a motor 1, a motor 2, a threaded screw 2 and a displacement block 2. The threaded screw 1 is rotatably installed near both sides of the rectangular beam, and the motor 1 is fixedly installed on the side outer wall of the hollow base frame corresponding to the position of the two groups of threaded screw 1s. The output shaft of the motor 1 is fixedly connected to the threaded screw 1. The two groups of threaded screw 1s are threadedly sleeved with displacement block 1, and the side outer wall of the displacement block 1 is in contact with the side inner wall of the rectangular beam. The threaded screw 2 is rotatably installed between the side outer walls of the two groups of displacement blocks 1 that are close to each other, and the motor 2 is embedded in one group of displacement blocks 1, the output shaft of the motor 2 is fixedly connected to the threaded screw 2, and the displacement block 2 is threadedly sleeved on the threaded screw 2.

[0010] Preferably, the welding assembly includes a hydraulic cylinder and a welding head. The hydraulic cylinder is fixedly mounted on the bottom outer wall of the second displacement block, and the welding head is fixedly provided at the bottom end of the hydraulic cylinder.

[0011] The present invention has the following beneficial effects:

[0012] 1. The compressor duct brazing and welding equipment, through the setting of the curvature-adjustable pipe placing mechanism, can move the displacement rod to flip along the guide rail bearing ring, and the limit piece at the bottom of the displacement rod is plugged into the annular guide rail groove on the guide rail bearing ring to limit the displacement process of the displacement rod. The displacement rod can be flipped to allow the bellows to be bent. According to the characteristics of the bellows, it can be bent and fixed at will, so that the displacement rod, piston rod and bellows are bent to adapt to the bending curvature of any duct, thereby improving the applicability of the equipment. In addition, the electric telescopic rod can brake the piston rod to extend and retract, thereby lengthening or shortening the length of the bellows, so that the curvature-adjustable pipe placing mechanism can adapt to ducts of different lengths, further improving the applicability of the equipment.

[0013] 2. The compressor duct brazing welding equipment drives the threaded screw 1 to rotate through the two sets of motors of the synchronous braking displacement adjustment mechanism. According to the screw principle, the two sets of displacement blocks 1 are synchronously moved laterally, thereby driving the displacement block 2 and the welding assembly to be synchronously displaced through the threaded screw 2. At the same time, the threaded screw 2 can also be driven to rotate by the braking motor 2. Also according to the screw principle, the displacement block 2 can be moved laterally, thereby driving the hydraulic cylinder and the welding head to move. Therefore, the lateral movement of the displacement blocks 1 and 2 can move the welding assembly to any place on the duct to be welded, thereby eliminating the need to adjust the position of the duct multiple times, thereby improving welding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A structural schematic diagram of the present invention;

[0015] Figure 2 A schematic structural diagram of the curvature-adjustable pipe placement mechanism of the present invention;

[0016] Figure 3 A schematic structural diagram of the guide rail bearing ring of the present invention;

[0017] Figure 4 A schematic structural diagram of the displacement rod of the present invention;

[0018] Figure 5 It is a structural schematic diagram of the displacement adjustment mechanism of the present invention.

[0019] In the figure: 1. Hollow base frame; 2. Rectangular surrounding beam; 3. Displacement adjustment mechanism; 4. Welding assembly; 5. Curvature adjustable pipe placement mechanism; 6. Clamping and fixing mechanism; 7. Mounting part; 8. Guide rail bearing ring; 9. Displacement rod; 10. Electric telescopic rod; 11. Piston rod; 12. Bellows; 13. Threaded screw one; 14. Displacement block one; 15. Motor one; 16. Motor two; 17. Threaded screw two; 18. Displacement block two; 19. Hydraulic cylinder; 20. Welding head; 21. Annular guide rail groove; 22. Limiting part; 23. Clamping block; 24. Clamping groove; 25. Arc clamping plate; 26. Threaded push rod. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] Example: Figure 1-Figure 5As shown, a compressor duct brazing welding equipment includes a hollow base frame 1 and a rectangular beam 2 fixedly installed just above the hollow base frame 1. An electric telescopic rod 10 is fixedly installed on the inner wall of the side of the hollow base frame 1. The electric telescopic rod 10 includes a piston rod 11. The end face of the piston rod 11 is fixedly connected to a bellows 12. The end of the bellows 12 facing away from the piston rod 11 is fixedly connected to a displacement rod 9. Guide rail bearing rings 8 are fixedly installed on the inner walls of both sides of the hollow base frame 1 through mounting parts 7. The guide rail bearing rings 8 are located below the displacement rod 9 and fit with the bottom outer wall at the end of the displacement rod 9. The guide rail bearing rings 8, the displacement rod 9, the piston rod 11 and the bellows 12 constitute an radian adjustable pipe placement mechanism 5. The piston rod 11 and the displacement rod 9 are both provided with a clamping and fixing mechanism 6. A displacement adjustment mechanism 3 is provided in the rectangular beam 2, and the rectangular beam 2 is connected to a welding assembly 4 located above the radian adjustable pipe placement mechanism 5 through the displacement adjustment mechanism 3.

[0022] The top outer wall of the electric telescopic rod 10 is flush with the top of the hollow base frame 1. The displacement rod 9, the electric telescopic rod 10 and the bellows 12 are located at the center line of the top of the hollow base frame 1. Before brazing the compressor duct, the duct is first fixedly installed on the radian adjustable pipe placement mechanism 5 in the hollow base frame 1. At this time, the displacement rod 9 can be turned along the guide rail bearing ring 8, and the limit piece 22 at the bottom of the displacement rod 9 is plugged into the annular guide groove 21 on the guide rail bearing ring 8 to control the displacement process of the displacement rod 9. The displacement rod 9 can be flipped to allow the bellows 12 to bend. According to the characteristics of the bellows 12, it can be bent and fixed at will, so that the displacement rod 9, the piston rod 11 and the bellows 12 are bent to adapt to the bending curvature of any catheter, thereby improving the applicability of the device, and the electric telescopic rod 10 can brake the piston rod 11 to extend and retract, thereby lengthening or shortening the length of the bellows 12, so that the curvature-adjustable tube placement mechanism 5 can adapt to catheters of different lengths, further improving the applicability of the device.

[0023] An annular guide rail groove 21 is provided on the top outer wall of the guide rail bearing ring 8 corresponding to the displacement rod 9. An integrated limiting piece 22 is provided on the bottom outer wall of the displacement rod 9 away from the end of the bellows 12. The limiting piece 22 is inserted into the annular guide rail groove 21 and fits with the inner wall of the limiting piece 22. The displacement rod 9 is located at the top center line of the guide rail bearing ring 8. The limiting piece 22 at the bottom of the displacement rod 9 is inserted into the annular guide rail groove 21 on the guide rail bearing ring 8 to limit the displacement process of the displacement rod 9.

[0024] The clamping and fixing mechanism 6 includes a clamping block 23, an arc-shaped clamping plate 25 and a threaded push rod 26. The clamping block 23 is fixedly installed on the top outer wall of the port of the piston rod 11 near the bellows 12 and on the top outer wall of the displacement rod 9. The clamping block 23 is provided with a clamping groove 24 with openings on both sides and the top. Two groups of symmetrical threaded push rods 26 are threadedly inserted at the center of the inner walls on both sides of the clamping groove 24. The threaded push rods 26 extend on both sides of the side wall of the clamping block 23. The two groups of threaded push rods 26 are located inside the clamping groove 24 and two groups of arc-shaped clamping plates 25 are rotatably installed on the end faces close to each other, and the two groups of arc-shaped clamping plates 25 are symmetrical to each other.

[0025] The displacement adjustment mechanism 3 includes a threaded screw 13, a displacement block 14, a motor 15, a motor 16, a threaded screw 17 and a displacement block 18. The threaded screw 13 is rotatably installed near both sides of the rectangular beam 2. The side outer wall of the hollow base frame 1 corresponds to the position of the two groups of threaded screws 13 and is fixedly installed with a motor 15. The output shaft of the motor 15 is fixedly connected to the threaded screw 13. The two groups of threaded screws 13 are threadedly sleeved with displacement blocks 14, and the side outer walls of the displacement blocks 14 are fitted with the side inner walls of the rectangular beam 2. The threaded screw 2 17 is rotatably installed between the side outer walls of the two groups of displacement blocks 14 that are close to each other, and a motor 2 16 is embedded in one group of displacement blocks 14. The output shaft of the motor 2 16 is fixedly connected to the threaded screw 13. Rod 2 17 is fixedly connected, and displacement block 2 18 is threadedly sleeved on threaded screw rod 2 17. After welding, the threaded screw rod 13 can be driven to rotate by synchronously braking two groups of motors 15. According to the screw principle, the two groups of displacement blocks 14 are synchronously moved laterally, thereby driving displacement block 2 18 and welding assembly 4 to be synchronously displaced by threaded screw rod 2 17, and at the same time, the threaded screw rod 2 17 can be driven to rotate by braking motor 2 16. Also according to the screw principle, the displacement block 2 18 can be moved laterally, thereby driving welding assembly 4 to move, so that the lateral movement of displacement block 14 and displacement block 2 18 can move welding assembly 4 to any place to be welded on the catheter, so that there is no need to adjust the position of the catheter multiple times, thereby improving welding efficiency.

[0026] Furthermore, the welding assembly 4 includes a hydraulic cylinder 19 and a welding head 20 . The hydraulic cylinder 19 is fixedly mounted on the bottom outer wall of the displacement block 2 18 , and the welding head 20 is fixedly provided at the bottom end of the hydraulic cylinder 19 .

[0027] The working principle of the present invention is as follows: before brazing the compressor duct, the duct is first fixedly installed on the radian adjustable pipe placement mechanism 5 in the hollow base frame 1. At this time, the displacement rod 9 can be turned along the guide rail bearing ring 8, and the limit piece 22 at the bottom of the displacement rod 9 is plugged into the annular guide groove 21 on the guide rail bearing ring 8 to limit the displacement process of the displacement rod 9. The displacement rod 9 can be turned to allow the bellows 12 to be bent. According to the characteristics of the bellows 12, it can be bent and fixed at will, so that the displacement rod 9 and the piston rod 11 and the bellows 12 are bent to adapt to the bending curvature of any duct, thereby improving the applicability of the equipment, and the electric telescopic rod 10 can brake the piston rod 11 to extend and retract, thereby lengthening or shortening the length of the bellows 12, so that the radian adjustable pipe placement mechanism 5 can adapt to ducts of different lengths, further improving the applicability of the equipment, and then the duct is fixed. At this time, the two ends of the duct are respectively placed on the clamping and fixing mechanism on the piston rod 11 The clamping and fixing mechanism 6 in the structure 6 and on the bellows 12, by placing the catheter between the two groups of arc-shaped clamping plates 25, and then rotating the threaded push rod 26 to make the two groups of arc-shaped clamping plates 25 close to each other to squeeze and fix the catheter, that is, completing the fixing operation of the catheter; then welding can be carried out, and the threaded screw 13 can be driven to rotate by synchronous braking of the two groups of motors 15. According to the screw principle, the two groups of displacement blocks 14 are synchronously moved laterally, thereby driving the displacement block 2 18 and the welding assembly 4 to be synchronously displaced by the threaded screw 2 17, and at the same time, the threaded screw 2 17 can be driven to rotate by the braking motor 2 16. Similarly, according to the screw principle, the displacement block 2 18 can be moved laterally, thereby driving the hydraulic cylinder 19 and the welding head 20 to move, so that the lateral movement of the displacement block 14 and the displacement block 2 18 can move the welding assembly 4 to any place to be welded on the catheter, so that there is no need to adjust the position of the catheter multiple times, thereby improving the welding efficiency.

[0028] While 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 these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A compressor duct brazing welding device, comprising a hollow base frame (1) and a rectangular beam (2) fixedly mounted directly above the hollow base frame (1), characterized in that An electric telescopic rod (10) is fixedly mounted on the inner wall of the side of the hollow base frame (1), and the electric telescopic rod (10) includes a piston rod (11). The end face of the piston rod (11) is fixedly connected to a bellows (12), and the end of the bellows (12) facing away from the piston rod (11) is fixedly connected to a displacement rod (9). Guide rail bearing rings (8) are fixedly mounted on the inner walls of both sides of the hollow base frame (1) through mounting members (7), and the guide rail bearing rings (8) are located below the displacement rod (9). The guide rail bearing ring (8), the displacement rod (9), the piston rod (11) and the bellows (12) form an radian adjustable pipe placement mechanism (5), the piston rod (11) and the displacement rod (9) are both provided with a clamping and fixing mechanism (6), the rectangular surrounding beam (2) is provided with a displacement adjustment mechanism (3), and the rectangular surrounding beam (2) is connected to a welding assembly (4) located above the radian adjustable pipe placement mechanism (5) through the displacement adjustment mechanism (3); The top outer wall of the electric telescopic rod (10) is flush with the top of the hollow base frame (1), and the displacement rod (9), the electric telescopic rod (10) and the bellows (12) are located at the center line of the top of the hollow base frame (1); An annular guide rail groove (21) is provided on the top outer wall of the guide rail bearing ring (8) corresponding to the displacement rod (9), and an integrated limiting member (22) is provided on the bottom outer wall of the end of the displacement rod (9) away from the bellows (12). The limiting member (22) is inserted into the annular guide rail groove (21) and is in contact with the inner wall of the limiting member (22); The displacement rod (9) is located at the top center line of the guide rail bearing ring (8); The clamping and fixing mechanism (6) includes a clamping block (23), an arc-shaped clamping plate (25) and a threaded push rod (26). The clamping block (23) is fixedly installed on the top outer wall of the port of the piston rod (11) close to the bellows (12) and the top outer wall of the displacement rod (9). The clamping block (23) is provided with a clamping groove (24) with two sides and a top opening. Two groups of symmetrical threaded push rods (26) are threadedly inserted at the center of the inner walls on both sides of the clamping groove (24). The threaded push rods (26) extend on both sides of the side wall of the clamping block (23). The two groups of threaded push rods (26) are located inside the clamping groove (24) and are rotatably installed on the end faces close to each other. The two groups of arc-shaped clamping plates (25) are symmetrical to each other.

2. A compressor duct brazing welding device according to claim 1, characterized in that The displacement adjustment mechanism (3) comprises a threaded screw rod (13), a displacement block (14), a motor (15), a motor (16), a threaded screw rod (17) and a displacement block (18). The threaded screw rod (13) is rotatably mounted on both sides of the rectangular beam (2). The motor (15) is fixedly mounted on the outer side wall of the hollow base frame (1) at positions corresponding to the two groups of threaded screw rods (13). The output shaft of the motor (15) is fixedly connected to the threaded screw rod (13). The two groups of threaded screw rods (13) are fixedly mounted on the outer side wall of the hollow base frame (1). The threaded screw rods (13) of the group are all threadedly sleeved with displacement blocks (14), and the side outer walls of the displacement blocks (14) are in contact with the side inner walls of the rectangular beam (2). The threaded screw rods (17) are rotatably installed between the side outer walls of the two groups of displacement blocks (14) that are close to each other, and the motor (16) is embedded in one group of displacement blocks (14). The output shaft of the motor (16) is fixedly connected to the threaded screw rod (17), and the displacement block (18) is threadedly sleeved on the threaded screw rod (17).

3. A compressor duct brazing welding device according to claim 2, characterized in that The welding assembly (4) comprises a hydraulic cylinder (19) and a welding head (20), wherein the hydraulic cylinder (19) is fixedly mounted on the bottom outer wall of the second displacement block (18), and the welding head (20) is fixedly provided at the bottom end of the hydraulic cylinder (19).

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