A high-efficiency continuous high-speed brazing welding machine

Abstract

This invention discloses a high-efficiency continuous high-speed brazing machine, relating to the field of brazing machine technology. It includes a frame, a conveyor belt, a material blocking and positioning mechanism, a support mechanism, and a brazing mechanism. The material blocking and positioning mechanism forms a stopping and positioning area at the brazing position of the conveyor belt. The brazing mechanism forms a radial switching stroke through a horizontal drive component and drives the brazing material supply nozzle to switch between the outer and inner sides of the contact brazing head through a reversing rotating seat, so that the heating plate assembly can complete the continuous brazing process of the outer and inner annular surfaces at the same brazing mechanism.

Description

Technical Field

[0001] This invention relates to the field of brazing machine technology, and in particular to a high-efficiency continuous high-speed brazing machine. Background Technology

[0002] A continuous brazing machine is an automated device used for continuous conveying and brazing of workpieces. It typically uses a conveying mechanism to sequentially feed the workpieces to be brazed into the brazing station, where a heating structure and a brazing filler metal supply structure work together to complete the brazing process of the workpiece connection area.

[0003] In the field of electric heating component manufacturing, heating plate components typically include a heating element, a base, and an annular connection area that needs to be fixed by brazing filler metal. During the production process, the outer and inner annular surfaces of the heating plate need to be brazed to form a stable thermally conductive connection between the heating element and the base.

[0004] When existing continuous brazing machines are used for brazing heating plate components, the outer peripheral positioning of the heating plate is prone to instability after it enters the brazing position. Furthermore, the brazing positions on the outer and inner ring surfaces of the heating plate are different. The single fixed-direction brazing material supply structure cannot take into account the supply positions on both the inner and outer sides, which can easily lead to instability in the relative position between the brazing material supply nozzle and the contact brazing head.

[0005] Therefore, it is necessary to invent a high-efficiency, continuous, high-speed brazing machine to solve the above problems. Summary of the Invention

[0006] The purpose of this invention is to provide a high-efficiency continuous high-speed brazing welding machine to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a high-efficiency continuous high-speed brazing welding machine, comprising a frame, a conveyor belt, a material blocking and positioning mechanism, a support mechanism and a brazing mechanism, wherein the conveyor belt is installed on the frame along the length direction of the frame, the material blocking and positioning mechanism is located on the side of the brazing position of the conveyor belt, and the brazing mechanism is supported below the support mechanism; The material blocking and positioning mechanism includes an arc-shaped material blocking seat, a floating positioning seat, and a material blocking cylinder. The material blocking cylinder is in transmission cooperation with the arc-shaped material blocking seat and the floating positioning seat. The arc-shaped material blocking seat is arranged towards the outer periphery of the heating plate and cooperates with the floating positioning seat to form a blocking and positioning area. The brazing mechanism includes a rotary mounting base, a first motor, a brazing head support base, a horizontal drive component, a contact brazing head, a brazing filler metal supply nozzle, a fixed mounting plate, and a reversing rotating base. The first motor is driven by the rotary mounting base, the contact brazing head is driven by the rotary mounting base, and the horizontal drive component is driven by the brazing head support base. Both the contact brazing head and the fixed mounting plate are supported on the brazing head support base and form a radial switching stroke with the brazing head support base. The reversing rotating seat is rotatably mounted below the fixed mounting plate, and the brazing filler nozzle is clamped and fixed to the lower side of the reversing rotating seat. The reversing rotating seat drives the brazing filler nozzle to rotate around the welding head support seat, so that the discharge end of the brazing filler nozzle switches between the outer and inner sides of the contact brazing head.

[0008] Preferably, the arc-shaped baffle has an arc-shaped baffle surface that cooperates with the outer periphery of the heating plate, the floating positioning seat is located on the side of the arc-shaped baffle facing the conveyor belt, and the baffle cylinder drives the arc-shaped baffle and the floating positioning seat into the conveying path of the conveyor belt, so that an outer peripheral limiting gap is formed between the arc-shaped baffle surface and the floating positioning seat.

[0009] Preferably, the support mechanism includes a transverse support beam, a support slide, a support frame, and a lifting cylinder. The support slide is slidably installed on the lower side of the transverse support beam along the length direction of the transverse support beam. The support frame is fixedly installed below the support slide. The lifting cylinder is fixedly installed on the support frame vertically. The brazing mechanism is connected to the output end of the lifting cylinder and forms a vertical approach stroke.

[0010] Preferably, the brazing mechanism includes a welding mounting plate, which is fixedly mounted below the output end of the lifting cylinder. A rotating mounting seat is rotatably mounted below the welding mounting plate. A welding head support seat is mounted below the rotating mounting seat via a horizontal drive component. A fixed mounting plate is fixedly mounted below the welding head support seat. The rotating mounting seat rotates relative to the welding mounting plate and forms a central rotation path.

[0011] Preferably, the horizontal drive component is mounted on the side of the rotary mounting base, and the output end of the horizontal drive component is in transmission cooperation with the welding head support base. The welding head support base drives the contact brazing head, the fixed mounting plate, the reversing rotating base and the brazing filler metal supply nozzle to move radially along the heating plate, so that the contact brazing head changes position between the outer ring surface and the inner ring surface of the heating plate.

[0012] Preferably, the brazing mechanism includes a feed nozzle adjustment seat, which is fixedly installed on the lower side of the reversing rotating seat. The feed nozzle adjustment seat has an inclined clamping hole, through which the brazing filler nozzle passes and is clamped, so that the outlet end of the brazing filler nozzle faces the lower end of the contact brazing head.

[0013] Preferably, the brazing mechanism includes a reversing drive component, which is fixedly installed on the side of the fixed mounting plate. The reversing drive component is in transmission cooperation with the reversing rotating seat. Under the drive of the reversing drive component, the reversing rotating seat drives the brazing filler nozzle to rotate 180 degrees and form a feeding reversing path.

[0014] Preferably, the brazing mechanism includes a spline shaft, a bushing, an arc-shaped holding block, and balls. The bushing is sleeved on the outside of the spline shaft, and a spring is sandwiched between the bushing and the spline shaft. The spline shaft is vertically inserted through one side of the welding head support and fixedly connected to the rotating mounting base. The arc-shaped holding block is fixedly installed at the lower end of the bushing, and the balls are embedded inside the arc-shaped holding block and roll against the surface of the heating plate, so that the arc-shaped holding block has an elastic holding stroke along the axial direction of the spline shaft.

[0015] Preferably, the arc-shaped pressing block rotates around the heating plate positioned by the baffle positioning mechanism, and the inner arc side of the arc-shaped pressing block is provided with a clearance opening, which is correspondingly set with the protrusion on the surface of the heating plate to form a protrusion clearance gap.

[0016] Preferably, it also includes a feeding station, which is installed on the frame and located on the feeding side of the conveyor belt. The feeding station includes a first feeding position and a second feeding position arranged at intervals along the conveying direction of the conveyor belt, so that the first feeding position and the second feeding position form a segmented feeding path.

[0017] The technical effects and advantages of this invention are as follows: 1. This invention, by setting up a material blocking and positioning mechanism, a horizontal drive component, a contact brazing head, a brazing filler nozzle, and a reversing rotating seat, allows the heating plate assembly to first form a stopping and positioning area by the arc-shaped material blocking seat and the floating positioning seat after being conveyed to the brazing position by the conveyor belt. Then, the horizontal drive component forms a radial switching stroke, enabling the contact brazing head to move between the outer and inner ring surfaces of the heating plate. The reversing rotating seat drives the brazing filler nozzle to complete the switching of the inner and outer feeding directions. This allows the same brazing mechanism to form a stable contact brazing path corresponding to different ring surfaces of the heating plate, which helps to reduce positional deviations caused by changing welding stations.

[0018] 2. By setting up an arc-shaped baffle, a floating positioning seat, and a baffle cylinder, the heating plate can be restricted by the arc-shaped baffle and the floating positioning seat when it enters the brazing position of the conveyor belt. An outer peripheral limiting gap is formed between the arc-shaped baffle and the floating positioning seat, so that the outer periphery of the heating plate has a clear stopping boundary and positioning reference before brazing. This helps to reduce the impact of lateral offset during the conveying process on the landing point of the contact brazing head.

[0019] 3. This invention, by setting up a splined shaft, bushing, spring, arc-shaped pressing block and ball bearings, enables the arc-shaped pressing block to form rolling contact with the surface of the heating plate through the ball bearings when rotating around the heating plate, and forms an elastic pressing stroke through the spring between the bushing and the splined shaft. At the same time, it uses the clearance opening to avoid the protrusions on the surface of the heating plate, thereby pressing the surface of the heating plate without driving the heating plate to rotate, reducing the hard interference between the pressing structure and the protrusions of the heating plate. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0021] Figure 2 This is a schematic diagram of the overall structure from another perspective of the present invention.

[0022] Figure 3 This is a partial structural diagram of the support mechanism and brazing mechanism of the present invention.

[0023] Figure 4 This is a schematic diagram of the conveyor belt and the material positioning mechanism of the present invention.

[0024] Figure 5 This is a schematic diagram of the support mechanism of the present invention.

[0025] Figure 6 This is a schematic diagram of the brazing mechanism of the present invention.

[0026] Figure 7 This is a schematic diagram of the lower part of the brazing mechanism of the present invention.

[0027] Figure 8 This is a schematic diagram of the brazing filler nozzle and the reversing rotating seat of the present invention.

[0028] Figure 9 This is a schematic diagram of the arc-shaped pressure block and the ball bearings of the present invention.

[0029] In the diagram: 1. Frame; 11. Conveyor belt; 12. Feeding station; 2. Material blocking and positioning mechanism; 21. Arc-shaped material blocking seat; 22. Floating positioning seat; 23. Material blocking cylinder; 3. Support mechanism; 31. Transverse support beam; 32. Support slide; 33. Support frame; 34. Lifting cylinder; 4. Brazing mechanism; 41. Welding mounting plate; 42. Rotary mounting seat; 421. First motor; 43. Welding head support seat; 431. Horizontal drive component; 44. Contact brazing head; 45. Brazing filler nozzle; 451. Fixed mounting plate; 452. Reversing rotating seat; 453. Feed nozzle adjusting seat; 454. Reversing drive component; 461. Splined shaft; 462. Bushing; 463. Arc-shaped clamping block; 464. Ball bearing. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] like Figures 1 to 9 As shown, the high-efficiency continuous high-speed brazing machine provided by the present invention essentially forms a stopping and positioning area on the outer periphery of the heating plate at the brazing position of the conveyor belt 11 by means of a material blocking and positioning mechanism 2, and through the cooperation of the horizontal drive component 431 and the reversing rotating seat 452 in the brazing mechanism 4, the contact brazing head 44 and the brazing filler material supply nozzle 45 can switch to braze corresponding to the outer ring surface and the inner ring surface of the heating plate.

[0032] In terms of specific structural installation, the structural body can be constructed according to the inventive concept of this embodiment. In this embodiment, no special limitations are imposed.

[0033] In this embodiment, a high-efficiency continuous high-speed brazing welding machine includes a frame 1, a conveyor belt 11, a feeding station 12, a material blocking and positioning mechanism 2, a support mechanism 3, and a brazing mechanism 4. The conveyor belt 11 is installed on the frame 1 along the length direction of the frame 1. The conveyor belt 11 is used to support and transport the heating plate assembly. The feeding station 12 is located on the feeding side of the conveyor belt 11. The material blocking and positioning mechanism 2 is located on the brazing position side of the conveyor belt 11. The support mechanism 3 is erected in the area above the conveyor belt 11. The brazing mechanism 4 is supported below the support mechanism 3 and faces the brazing position of the conveyor belt 11.

[0034] In this embodiment, the conveyor belt 11 adopts a continuous conveying structure, which includes a drive motor, a drive roller, a driven roller, and a conveyor belt body. The drive motor is mounted on the frame 1, and the drive roller and driven roller are rotatably mounted at both ends of the frame 1. The conveyor belt body is wrapped around the outside of the drive roller and driven roller. The drive motor and the drive roller are driven together to make the conveyor belt body circulate along the length of the frame 1.

[0035] In this embodiment, the feeding station 12 is set in multiple groups, and the multiple feeding stations 12 correspond to the heating part of the heating plate and the heating plate base respectively, so that the heating part of the heating plate and the heating plate base can enter different feeding positions along the conveying direction of the conveyor belt 11 and form a segmented feeding path on the conveyor belt 11.

[0036] The material blocking and positioning mechanism 2 includes an arc-shaped material blocking seat 21, a floating positioning seat 22, and a material blocking cylinder 23. The cylinder body of the material blocking cylinder 23 is fixedly installed on the frame 1. The output end of the material blocking cylinder 23 is set towards the conveying path of the conveyor belt 11. The arc-shaped material blocking seat 21 and the floating positioning seat 22 are driven and cooperate with the output end of the material blocking cylinder 23. The arc-shaped material blocking seat 21 has an arc-shaped material blocking surface that cooperates with the outer periphery of the heating plate. The floating positioning seat 22 is located on the side of the arc-shaped material blocking seat 21 facing the conveyor belt 11.

[0037] When the material-blocking cylinder 23 is activated, it drives the arc-shaped material-blocking seat 21 and the floating positioning seat 22 into the conveying path of the conveyor belt 11. The arc-shaped material-blocking surface of the arc-shaped material-blocking seat 21 contacts the outer periphery of the heating plate. The floating positioning seat 22 floats and limits the heating plate from the side of the arc-shaped material-blocking seat 21 toward the conveyor belt 11, so that the heating plate is restricted within the outer periphery limiting gap between the arc-shaped material-blocking surface and the floating positioning seat 22.

[0038] The support mechanism 3 includes a transverse support beam 31, a support slide 32, a support frame 33, and a lifting cylinder 34. The transverse support beam 31 serves as the upper load-bearing structure of the brazing mechanism 4. The support slide 32 is slidably installed on the lower side of the transverse support beam 31 along its length. The support frame 33 is fixedly installed below the support slide 32. The cylinder body of the lifting cylinder 34 is fixedly installed on the support frame 33 vertically. The output end of the lifting cylinder 34 extends downward and is connected to the brazing mechanism 4.

[0039] When the lifting cylinder 34 is activated, it drives the brazing mechanism 4 to move vertically closer to or further away from the heating plate on the conveyor belt 11. When the support slide 32 slides along the transverse support beam 31, it can adjust the transverse installation position of the brazing mechanism 4 relative to the brazing position of the conveyor belt 11. The support frame 33 is used to stably hold the lifting cylinder 34 and the brazing mechanism 4 in the area above the conveyor belt 11.

[0040] The brazing mechanism 4 includes a welding mounting plate 41, a rotating mounting base 42, a first motor 421, a welding head support base 43, a horizontal drive component 431, a contact brazing head 44, a brazing filler metal supply nozzle 45, a fixed mounting plate 451, and a reversing rotating base 452. The welding mounting plate 41 is fixedly mounted below the output end of the lifting cylinder 34. The rotating mounting base 42 is rotatably mounted below the welding mounting plate 41. The first motor 421 is fixed on the welding mounting plate 41 and drives the rotating mounting base 42. The welding head support base 43 is mounted below the rotating mounting base 42 via the horizontal drive component 431. The fixed mounting plate 451 is fixedly mounted below the welding head support base 43. The reversing rotating base 452 is rotatably mounted below the fixed mounting plate 451.

[0041] When the first motor 421 is working, it drives the rotating mounting base 42 to rotate. The rotating mounting base 42 drives the welding head support 43, the horizontal drive component 431, the contact brazing head 44, the fixed mounting plate 451, the reversing rotating base 452, and the brazing filler nozzle 45 to move around the annular brazing area of ​​the heating plate, so that the contact brazing head 44 can form an annular contact brazing trajectory along the outer or inner annular surface of the heating plate.

[0042] The welding head support 43 is installed below the rotary mounting base 42, and the horizontal drive 431 is installed on the side of the rotary mounting base 42. The output end of the horizontal drive 431 is in transmission cooperation with the welding head support 43. The contact brazing head 44 is installed on the welding head support 43, and the fixed mounting plate 451 is fixedly installed below the welding head support 43. When the horizontal drive 431 is activated, it drives the welding head support 43, the contact brazing head 44, the fixed mounting plate 451, the reversing rotating base 452, and the brazing filler nozzle 45 to move synchronously along the radial direction of the heating plate.

[0043] The reversing rotating seat 452 is rotatably mounted below the fixed mounting plate 451. The brazing filler nozzle 45 is clamped and fixed on the lower side of the reversing rotating seat 452. When the reversing rotating seat 452 rotates, it drives the brazing filler nozzle 45 to rotate around the welding head support seat 43. When the contact brazing head 44 corresponds to the outer ring surface of the heating plate, the brazing filler nozzle 45 is located outside the contact brazing head 44. When the contact brazing head 44 corresponds to the inner ring surface of the heating plate, the reversing rotating seat 452 drives the brazing filler nozzle 45 to rotate to the inner side of the contact brazing head 44.

[0044] The feed nozzle adjustment seat 453 is fixedly installed on the lower side of the reversing rotating seat 452. The feed nozzle adjustment seat 453 is provided with an inclined clamping hole. The brazing filler nozzle 45 passes through and is clamped in the inclined clamping hole, so that the discharge end of the brazing filler nozzle 45 can be inclined towards the lower end of the contact brazing head 44. The brazing filler nozzle 45 is used to feed the brazing filler into the brazing area between the contact brazing head 44 and the heating plate annular surface.

[0045] The reversing drive 454 is fixedly installed on the side of the fixed mounting plate 451. The reversing drive 454 is in transmission cooperation with the reversing rotating seat 452. When the reversing drive 454 drives the reversing rotating seat 452 to rotate 180 degrees, the brazing filler nozzle 45 can switch back and forth between the outside of the contact brazing head 44 and the inside of the contact brazing head 44.

[0046] The brazing mechanism 4 also includes a spline shaft 461, a bushing 462, an arc-shaped holding block 463, and balls 464. The bushing 462 is sleeved on the outside of the spline shaft 461, and a spring is sandwiched between the bushing 462 and the spline shaft 461. The spline shaft 461 is vertically inserted through one side of the welding head support 43 and fixedly connected to the rotating mounting base 42. The arc-shaped holding block 463 is fixedly installed at the lower end of the bushing 462. The balls 464 are respectively embedded in the inner side and top of the arc-shaped holding block 463 and roll against the surface of the heating plate, so that the arc-shaped holding block 463 can generate elastic displacement along the axial direction of the spline shaft 461 when it contacts the surface of the heating plate.

[0047] The arc-shaped pressing block 463 rotates with the rotating mounting base 42 to rotate around the heating plate positioned by the baffle positioning mechanism 2. During operation, the arc-shaped pressing block 463 only rotates around the heating plate and forms a pressing and rolling limit on the heating plate, without driving the heating plate to rotate. The inner arc side of the arc-shaped pressing block 463 is provided with a clearance opening, which is corresponding to the protrusion on the surface of the heating plate, so that the arc-shaped pressing block 463 forms a clearance gap when rotating through the protrusion position.

[0048] During operation, the heating plate assembly enters the conveyor belt 11 from the loading station 12. The conveyor belt 11, through the cooperation of the drive motor, the active roller, the driven roller and the conveyor belt body, transports the heating plate assembly to the brazing position. The blocking cylinder 23 drives the arc-shaped blocking seat 21 and the floating positioning seat 22 into the conveying path. The arc-shaped blocking seat 21 blocks the outer periphery of the heating plate, and the floating positioning seat 22 floats and positions the side of the heating plate.

[0049] After positioning is completed, the lifting cylinder 34 drives the welding mounting plate 41, rotating mounting seat 42, welding head support seat 43, fixed mounting plate 451, reversing rotating seat 452, contact brazing head 44 and brazing filler material supply nozzle 45 to descend as a whole, so that the contact brazing head 44 is close to the brazing area of ​​the outer ring surface of the heating plate. The arc-shaped holding block 463 rolls against the surface of the heating plate through the ball bearing 464, so that the heating plate is in a holding state before the contact brazing head 44 works.

[0050] During the outer ring brazing, the horizontal drive 431 drives the welding head support 43 to move to the corresponding position on the outer ring of the heating plate. The brazing filler nozzle 45 is located outside the contact brazing head 44. The first motor 421 drives the rotating mounting base 42 to rotate. The rotating mounting base 42 drives the welding head support 43, the contact brazing head 44, the fixed mounting plate 451, the reversing rotating base 452, the brazing filler nozzle 45, the spline shaft 461, and the arc-shaped holding block 463 to move around the heating plate, so that the contact brazing head 44 makes contact heating along the outer ring of the heating plate, and the brazing filler nozzle 45 simultaneously supplies brazing filler to the lower end of the contact brazing head 44.

[0051] Before brazing the outer ring surface, the contact brazing head 44 first performs single-point brazing to fix the local contact position between the heating plate and the heating plate base, so that a preliminary fixing point is formed between the heating plate and the heating plate base. The arc-shaped baffle 21 forms a blocking limit on the outer periphery of the heating plate, so that the heating plate remains in a positioned state during the subsequent annular brazing process. During the outer ring surface brazing process, the spring between the spline shaft 461 and the bushing 462 provides elastic holding force to the arc-shaped holding block 463. The arc-shaped holding block 463 presses down on the heating plate, and the balls 464 respectively... The ball bearings 464 are located on the inner side and top of the arc-shaped holding block 463. The ball bearings 464 on the inner side roll against the side of the heating plate, and the ball bearings 464 on the top roll against the pressure surface of the heating plate. When the arc-shaped holding block 463 rotates around the heating plate with the brazing mechanism 4, the ball bearings 464 release the circumferential friction force, which prevents the arc-shaped holding block 463 from transmitting the circumferential force that drives the heating plate to rotate to the heating plate. This makes the heating plate maintain a stable position relative to the heating plate base when it is fixed to the heating plate base by single-point brazing.

[0052] In this embodiment, after the arc-shaped pressing block 463 completes the pressing action, the bottom end of the arc-shaped pressing block 463 is lower than the surface of the heating plate and is horizontally offset from the top end of the arc-shaped baffle 21. When the arc-shaped pressing block 463 rotates around the heating plate, it passes through the side of the arc-shaped baffle 21, so that the movement path of the bottom end of the arc-shaped pressing block 463 avoids the top end of the arc-shaped baffle 21, thereby avoiding motion interference between the arc-shaped pressing block 463 and the arc-shaped baffle 21 during the rotation pressing process.

[0053] After the outer ring surface brazing is completed, the horizontal drive component 431 drives the welding head support 43, the contact brazing head 44, the fixed mounting plate 451, the reversing rotating seat 452, and the brazing filler nozzle 45 to move synchronously along the radial direction of the heating plate, so that the contact brazing head 44 moves from the position corresponding to the outer ring surface of the heating plate to the position corresponding to the inner ring surface of the heating plate. The reversing drive component 454 drives the reversing rotating seat 452 to rotate 180 degrees relative to the fixed mounting plate 451. The reversing rotating seat 452 drives the brazing filler nozzle 45 to switch from the outside of the contact brazing head 44 to the inside of the contact brazing head 44, so that the discharge end of the brazing filler nozzle 45 is facing the brazing area between the lower end of the contact brazing head 44 and the inner ring surface of the heating plate again.

[0054] During the inner ring surface brazing, the first motor 421 continues to drive the rotating mounting base 42 to rotate, the contact brazing head 44 makes contact heating along the inner ring surface of the heating plate, the brazing material supply nozzle 45 supplies brazing material to the inner ring surface of the heating plate, and the arc-shaped holding block 463 rotates around the heating plate with the movement of the contact brazing head 44. When the clearance port on the inner arc side of the arc-shaped holding block 463 passes through the protrusion on the surface of the heating plate, it forms a protrusion clearance gap, so that the arc-shaped holding block 463 reduces the hard interference between itself and the protrusion structure while holding the surface of the heating plate.

[0055] After the inner ring surface is brazed, the lifting cylinder 34 drives the brazing mechanism 4 to rise and reset, and the material blocking cylinder 23 drives the arc-shaped material blocking seat 21 and the floating positioning seat 22 to exit the conveying path of the conveyor belt 11. The conveyor belt 11 continues to run and sends the completed brazing heating plate assembly out of the brazing position. The next heating plate assembly enters the stop positioning area and repeats the above process.

[0056] In an extended embodiment, this technical solution is also applicable to brazing of annular products with a similar annular welding area to the heating plate assembly. The annular product includes an annular electric heating element, an annular heat-conducting element, an annular conductive connector, and an annular support base. In implementation, the heating plate assembly is replaced with an annular component to be welded, the outer annular surface of the heating plate is replaced with the outer annular welding surface of the annular component to be welded, and the inner annular surface of the heating plate is replaced with the inner annular welding surface of the annular component to be welded. The arc-shaped stop surface of the arc-shaped stop base 21 is adapted to the outer circumferential shape of the annular component to be welded, and the floating positioning base 22 corresponds to the annular component to be welded. The welding assembly is located on the side. The horizontal drive 431 drives the contact brazing head 44 and the brazing filler nozzle 45 to move synchronously along the radial direction of the heating plate. The reversing rotating seat 452 drives the brazing filler nozzle 45 to switch between the outer and inner sides of the contact brazing head 44. The arc-shaped pressing block 463 is adapted to the surface shape of the annular component to be welded. The clearance is set to the boss, terminal, positioning post and reinforcing rib on the surface of the annular component to be welded. Thus, the same set of conveying positioning, radial repositioning, feeding reversing and elastic pressing structure can be adapted to the brazing processing of products with inner and outer annular welding surfaces.

[0057] In summary, the present invention enables the heating plate assembly to complete peripheral stopping and positioning under continuous conveying conditions through the cooperation between the conveyor belt 11, the material blocking and positioning mechanism 2, the support mechanism 3, and the brazing mechanism 4. The horizontal drive component 431 cooperates with the reversing rotating seat 452 to switch the contact brazing position between the outer and inner ring surfaces of the heating plate. At the same time, the arc-shaped holding block 463 and the ball bearing 464 form a follow-up holding on the surface of the heating plate, thereby reducing the impact of workpiece offset, material feeding direction mismatch, and protrusion interference on the brazing path during the brazing process.

[0058] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A high-efficiency continuous high-speed brazing welding machine, comprising a frame (1), a conveyor belt (11), a material blocking and positioning mechanism (2), a support mechanism (3), and a brazing mechanism (4), characterized in that: The conveyor belt (11) is installed on the frame (1) along the length direction of the frame (1), the material blocking positioning mechanism (2) is located on the side of the brazing position of the conveyor belt (11), and the brazing mechanism (4) is supported below the support mechanism (3); The material blocking and positioning mechanism (2) includes an arc-shaped material blocking seat (21), a floating positioning seat (22) and a material blocking cylinder (23). The material blocking cylinder (23) is in transmission cooperation with the arc-shaped material blocking seat (21) and the floating positioning seat (22). The arc-shaped material blocking seat (21) is arranged towards the outer periphery of the heating plate and cooperates with the floating positioning seat (22) to form a blocking and positioning area. The brazing mechanism (4) includes a rotary mounting base (42), a first motor (421), a welding head support base (43), a horizontal drive component (431), a contact brazing head (44), a brazing filler nozzle (45), a fixed mounting plate (451), and a reversing rotating base (452). The first motor (421) is driven by the rotary mounting base (42), the contact brazing head (44) is driven by the rotary mounting base (42), the horizontal drive component (431) is driven by the welding head support base (43), and both the contact brazing head (44) and the fixed mounting plate (451) are supported on the welding head support base (43) and form a radial switching stroke with the welding head support base (43). The reversing rotating seat (452) is rotatably mounted below the fixed mounting plate (451). The brazing filler nozzle (45) is clamped and fixed to the lower side of the reversing rotating seat (452). The reversing rotating seat (452) drives the brazing filler nozzle (45) to rotate around the welding head support seat (43), so that the discharge end of the brazing filler nozzle (45) switches between the outside and inside of the contact brazing head (44).

2. A high speed continuous brazing and soldering machine as claimed in claim 1 wherein: The arc-shaped baffle (21) has an arc-shaped baffle surface that matches the outer periphery of the heating plate. The floating positioning seat (22) is located on the side of the arc-shaped baffle (21) facing the conveyor belt (11). The baffle cylinder (23) drives the arc-shaped baffle (21) and the floating positioning seat (22) into the conveying path of the conveyor belt (11), so that an outer peripheral limiting gap is formed between the arc-shaped baffle surface and the floating positioning seat (22).

3. The high speed continuous brazing and soldering machine of claim 1, wherein: The support mechanism (3) includes a transverse support beam (31), a support slide (32), a support frame (33), and a lifting cylinder (34). The support slide (32) is slidably installed on the lower side of the transverse support beam (31) along the length direction of the transverse support beam (31). The support frame (33) is fixedly installed below the support slide (32). The lifting cylinder (34) is fixedly installed on the support frame (33) in the vertical direction. The brazing mechanism (4) is connected to the output end of the lifting cylinder (34) and forms a vertical approach stroke.

4. A high speed continuous brazing and soldering machine as claimed in claim 3 wherein: The brazing mechanism (4) includes a welding mounting plate (41), which is fixedly mounted below the output end of the lifting cylinder (34). The rotating mounting seat (42) is rotatably mounted below the welding mounting plate (41). The welding head support seat (43) is mounted below the rotating mounting seat (42) via a horizontal drive component (431). The fixed mounting plate (451) is fixedly mounted below the welding head support seat (43). The rotating mounting seat (42) rotates relative to the welding mounting plate (41) and forms a central rotation path.

5. A high speed continuous brazing and soldering machine as claimed in claim 4 wherein: The horizontal drive (431) is installed on the side of the rotary mounting base (42). The output end of the horizontal drive (431) is in transmission cooperation with the welding head support base (43). The welding head support base (43) drives the contact brazing head (44), the fixed mounting plate (451), the reversing rotating base (452) and the brazing filler nozzle (45) to move radially along the heating plate, so that the contact brazing head (44) changes position between the outer ring surface and the inner ring surface of the heating plate.

6. A high speed continuous brazing and soldering machine as claimed in claim 1 wherein: The brazing mechanism (4) includes a feed nozzle adjustment seat (453), which is fixedly installed on the lower side of the reversing rotating seat (452). The feed nozzle adjustment seat (453) has an inclined clamping hole, and the brazing material feed nozzle (45) passes through and is clamped in the inclined clamping hole, so that the discharge end of the brazing material feed nozzle (45) faces the lower end of the contact brazing head (44).

7. A high speed continuous brazing machine as claimed in claim 6 wherein: The brazing mechanism (4) includes a reversing drive (454), which is fixedly installed on the side of the fixed mounting plate (451). The reversing drive (454) is in transmission cooperation with the reversing rotating seat (452). The reversing rotating seat (452) drives the brazing filler nozzle (45) to rotate 180 degrees under the drive of the reversing drive (454) and forms a feeding reversing path.

8. A high speed continuous brazing machine as claimed in claim 1 wherein: The brazing mechanism (4) includes a spline shaft (461), a bushing (462), an arc-shaped holding block (463), and a ball (464). The bushing (462) is sleeved on the outside of the spline shaft (461). A spring is sandwiched between the bushing (462) and the spline shaft (461). The spline shaft (461) is vertically inserted through one side of the welding head support seat (43) and fixedly connected to the rotating mounting seat (42). The arc-shaped holding block (463) is fixedly installed at the lower end of the bushing (462). The ball (464) is embedded in the arc-shaped holding block (463) and rolls against the surface of the heating plate, so that the arc-shaped holding block (463) has an elastic holding stroke along the axial direction of the spline shaft (461).

9. A high speed continuous brazing machine as claimed in claim 8, wherein: The arc-shaped pressing block (463) rotates around the heating plate positioned by the baffle positioning mechanism (2). The inner arc side of the arc-shaped pressing block (463) is provided with a relief opening. The relief opening is corresponding to the protrusion on the surface of the heating plate and forms a protrusion relief gap.

10. The high speed continuous brazing machine of claim 1, wherein: It also includes a loading station (12), which is installed on the frame (1) and located on the feeding side of the conveyor belt (11). The loading station (12) includes a first loading position and a second loading position arranged at intervals along the conveying direction of the conveyor belt (11), so that the first loading position and the second loading position form a segmented loading path.

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