Welding and pressing forming device and method for flat-end pipe

Abstract

The invention provides a flat-end pipe welding and pressing forming device and a forming method thereof, and relates to the technical field of copper pipe machining.The flat-end pipe welding and pressing forming device comprises an operation platform, and a pointed-end pipe storage mechanism, a copper pipe conveying part, a rotary flat welding mechanism, a vertical pipe clamping mechanism, a pressing head mechanism and a material collecting box are arranged above the operation platform; wherein the spun copper pipe is placed in the pointed-end pipe storage mechanism. A spinning copper pipe is conveyed into the rotary flat welding mechanism through the copper pipe conveying part, the pipe pressing mechanism is used for abutting against the other end of a pointed pipe forwards, the rotary flat welding mechanism exerts pre-tightening force to press the pointed end of the pointed pipe on a laser welding head for fusion welding and flat welding, and then the copper pipe conveying part is used for conveying the copper pipe with the flattened pointed end to the vertical pipe clamping mechanism; and the vertical pipe clamping mechanism conveys the copper pipe into the pressure head mechanism to be flattened, so that the flat-end copper pipe can be integrally manufactured, the efficiency of forming and processing the copper pipe is greatly improved, the labor is obviously reduced, and the cost is obviously reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of copper tube processing, in particular to a welding and pressing forming device and a forming method for a flat-end tube. Background Art

[0002] A traditional VC heat sink consists of cooling fins 20 and a fan 40. Fins 20 are embedded with heat pipes 10, and a temperature-stabilizing bracket 30 is located below the heat pipes 10 to secure them. The operating principle is as follows: the temperature-stabilizing bracket 30 and the heat pipes come into contact with a heat source. Heat is then conducted through the heat pipes 10 on the temperature-stabilizing bracket and drawn into the cooling fins. The fan then activates, removing the heat from the fins with airflow, completing the heat dissipation process.

[0003] The top of each VC radiator's heat pipe is a tapered head 101. However, this tapered head poses a serious drawback when installing fins: the tapered head of the VC radiator cannot accommodate the fins, leaving them exposed. The number of fins directly affects the VC radiator's heat dissipation efficiency; more fins ensure optimal performance. Currently, no equipment on the market can process flat-top heat pipes. Summary of the Invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a welding and pressing forming device and a forming method for a flat head pipe.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions: a flat-head tube welding and pressing forming device and a forming method thereof, comprising a working platform, above which a pointed tube storage mechanism, a copper tube conveying part, a rotary welding flattening mechanism, a vertical tube clamping mechanism, a pressure head mechanism and a material receiving box are arranged. The pointed tube storage mechanism has a storage hopper, and the storage hopper has a conical cavity. The width of the conical cavity is just right to accommodate the flat and horizontal pointed tube, which just forms a vertical limit for the pointed tube. The spun copper tube is transported to the rotary welding flattening mechanism with the help of the copper tube conveying part, and the pressure tube mechanism is used to push the other end of the pointed tube forward. The rotary welding flattening mechanism applies a pre-tightening force to press the tip of the pointed tube onto the laser welding head for fusion welding, and welds the tip flat. The copper tube conveying part is used to convey the copper tube with the flattened tip to the vertical tube clamping mechanism, and the vertical tube clamping mechanism conveys the copper tube to the pressure head mechanism for flattening, and finally places it in the material receiving box.

[0006] Preferably, a pointed tube feeding boss is provided inside the pointed tube storage mechanism near the edge, and the pointed tube feeding boss is driven to rise and fall by a cylinder.

[0007] Preferably, a transverse feeding device is provided at the upper end of the working platform, wherein the transverse feeding device is driven by a cylinder to move in the horizontal direction, and the transverse feeding device is driven by a cylinder to rise and fall in the vertical direction, wherein the transverse feeding device is located between the pointed tube feeding bosses.

[0008] Preferably, the working platform is provided with a rotary flat welding mechanism, a placement rack and a tube pressing mechanism, wherein the placement rack is located on both sides of the transverse feeding device, and an electric clamp is installed at the output end of the tube pressing mechanism.

[0009] Preferably, a pipe rack is installed on the upper end of the working platform, wherein the pipe rack is located inside the transverse feeding device, and a pipe pushing mechanism is installed on the upper end of the working platform, and an electric clamp is installed on the output end of the pipe pushing mechanism.

[0010] Preferably, the vertical pipe clamping mechanism includes a rotating seat installed at the upper end of the working platform relative to the pipe rack position, a servo motor is arranged inside the rotating seat to drive the first mechanical clamp to rotate, wherein the first mechanical clamp is an electric clamp, and a pipe delivery clamp is arranged on the working platform, wherein the pipe delivery clamp is driven by a cylinder to move horizontally, wherein the pipe delivery clamp is an electric clamp.

[0011] Preferably, the pressing head mechanism includes a flattening die installed on a working platform, and a lifting part is installed on the upper end of the working platform, and the lifting part drives the top clamp to move in the vertical direction by means of a cylinder.

[0012] Preferably, a horizontal conveying part is installed at the upper end of the working platform, and the horizontal conveying part drives the second mechanical clamp by means of a cylinder, and the second mechanical clamp is driven to rotate on the horizontal conveying part by means of a servo motor.

[0013] Preferably, the material receiving box is installed on the working platform below the second mechanical clamp.

[0014] A method for forming a flat-end copper tube for a radiator, using the flat-end copper tube forming device for a radiator, comprises the following steps: S1. Align all the pointed copper tubes after spinning to one position and place them in the pointed tube storage mechanism; S2. The pointed tube feeding boss descends in the pointed tube storage mechanism, and one of the arrow-shaped copper tubes rolls over the pointed tube feeding boss and gets stuck. Then the pointed tube feeding boss moves upward to lift up the copper tube. Finally, the transverse feeding device moves horizontally to the bottom of the pointed tube feeding boss. The pointed tube feeding boss descends to allow the copper tube to be placed on the transverse feeding device and get stuck. S3, the horizontal feeding device moves in the horizontal direction to transport the copper tube. When the horizontal feeding device transports the copper tube to the rotary welding mechanism, the horizontal feeding device descends and places the copper tube on the placement rack; S4. An electric clamp is set at the output end of the tube pressing mechanism. The electric clamp clamps the copper tube and pushes it to the rotating flat welding mechanism under the action of the tube pressing mechanism. The tube pressing mechanism pushes forward to press the other end of the pointed tube. The rotating flat welding mechanism applies a pre-tightening force to press the tip of the pointed tube onto the laser welding head for fusion welding, and welds the tip flat. S5. The copper tube with the flattened tip is pulled out of the rotary welding mechanism under the action of the tube pressing mechanism, and then the copper tube is lowered and placed on the placement rack. The horizontal feeding device moves upward to lift the copper tube, and finally the horizontal feeding device moves horizontally to the top of the tube placement rack. The horizontal feeding device is lowered to place the copper tube on the tube placement rack and clamp it. S6. An electric clamp is provided at the output end of the tube pressing mechanism. The electric clamp clamps the copper tube and pushes it to the first mechanical clamp under the action of the tube pushing mechanism. The first mechanical clamp clamps the copper tube and rotates the first mechanical clamp by the rotating seat to make the copper tube stand upright and be clamped by the tube feeding clamp. The tube feeding clamp transports the copper tube horizontally. S7. The tube feeding clamp conveys the copper tube to the flattening die, clamps the upper end of the copper tube with the top clamp, and conveys the copper tube vertically under the action of the lifting part, and flattens the flattened part of the copper tube with the flattening die, then pulls up the flattened copper tube with the top clamp, clamps the copper tube with the second mechanical clamp, and transports the copper tube to the top of the material receiving box under the action of the horizontal conveying part, releases the second mechanical clamp and places the copper tube into the material receiving box.

[0015] Compared with the prior art, the advantages and positive effects of the present invention are: In the present invention, the spun copper tube is transported to the rotary flattening mechanism with the help of the copper tube conveying part, and the tube pressing mechanism is used to press the other end of the pointed tube forward, and the rotary flattening mechanism applies a pre-tightening force to press the tip of the pointed tube onto the laser welding head for fusion welding, and the pointed tip is welded flat. The copper tube conveying part is then used to transport the copper tube with the flattened tip to the vertical tube clamping mechanism, and the vertical tube clamping mechanism transports the copper tube to the pressing head mechanism for flattening, so that the flat-head copper tube can be manufactured in an integrated manner, which greatly improves the efficiency of the copper tube forming process and significantly reduces labor and costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the three-dimensional structure of a flat-end tube welding and pressing forming device and a forming method thereof proposed by the present invention; Figure 2 The present invention proposes a flat head pipe welding and forming device and its forming method Figure 1 Partial schematic diagram of Figure 3 The present invention proposes a flat head pipe welding and forming device and its forming method Figure 2 A magnified view of point A; Figure 4 This is a schematic diagram of a portion of a pointed tube storage mechanism in a flat-end tube welding and pressing forming device and forming method provided by the present invention; Figure 5 This is a schematic diagram of the feeding boss portion of a pointed tube in a welding and pressing forming device for a flat tube and a forming method thereof proposed by the present invention; Figure 6 This is a schematic diagram of the flattening portion of a welding and pressing forming device and forming method for a flat-end tube proposed in the present invention; Figure 7 This is a schematic diagram of processing a pointed tube according to the present invention; Figure 8 This is a schematic diagram of processing a flat head pipe according to the present invention; Figure 9 For the present invention Figure 5 Enlarged view of point B.

[0017] Legend: 1. Working platform; 2. Pointed tube storage mechanism; 21. Pointed tube feeding boss; 22. Horizontal feeding device; 23. Placement rack; 24. Tube pressing mechanism; 25. Tube pushing mechanism; 26. Tube placement rack; 27. Rotary welding mechanism; 3. Vertical tube clamping mechanism; 31. First mechanical clamp; 32. Rotating seat; 33. Tube feeding clamp; 4. Pressing head mechanism; 41. Flattening mold; 42. Lifting part; 43. Top clamp; 44. Horizontal conveying part; 45. Second mechanical clamp; 5. Material receiving box; 6. Large active pressure roller; 7. Laser welding head; 8. Driven pressure roller. DETAILED DESCRIPTION

[0018] Example 1, as Figure 1-9As shown, a flat-head tube welding and pressing forming device and forming method thereof include a working platform 1, above which are arranged a pointed tube storage mechanism 2, a copper tube conveying portion, a rotary flattening mechanism 27, a vertical tube clamping mechanism 3, a pressing head mechanism 4 and a receiving box 5. The pointed tube storage mechanism 2 has a storage hopper, and the storage hopper has a conical cavity. The width of the conical cavity is just right for accommodating a flat and horizontal pointed tube, which just forms a vertical limit for the pointed tube. The spun copper tube is transported to the rotary flattening mechanism 27 with the help of the copper tube conveying portion, and the other end of the pointed tube is pressed forward by the pressing tube mechanism 24. The rotary flattening mechanism 27 applies a pre-tightening force to press the pointed tip of the pointed tube onto the laser welding head 7 for fusion welding, and then the pointed tip is welded flat. The copper tube conveying portion is then used to transport the copper tube with the flattened tip to the vertical tube clamping mechanism. Mechanism 3, the vertical tube clamping mechanism 3 conveys the copper tube to the pressure head mechanism 4 to flatten it, and finally places it in the receiving box 5. A pointed tube feeding boss 21 is provided near the edge of the pointed tube storage mechanism 2. The feeding boss 21 has a bayonet for accommodating the pointed tube body. The pointed tube feeding boss 21 is driven to rise and fall by a cylinder. A horizontal feeding device 22 is provided at the upper end of the working platform 1, wherein the horizontal feeding device 22 is driven by a cylinder to move in the horizontal direction. The horizontal feeding device 22 includes a pair of parallel horizontal feeding racks and a conveying cylinder mechanism that drives the horizontal feeding rack to move horizontally and longitudinally. The horizontal feeding device 22 is driven by a cylinder to rise and fall in the vertical direction, wherein the horizontal feeding device 22 is located between the pointed tube feeding bosses 21, and a rotary welding device is provided on the working platform 1. The flattening mechanism 27 and the placing rack 23 and the pipe pressing mechanism 24, wherein the placing rack 23 is located on both sides of the horizontal feeding device 22, the output end of the pipe pressing mechanism 24 is installed with an electric clamp (the pipe pressing mechanism 24 is driven by a cylinder), the rotary flattening mechanism 27 includes a laser welding head 7, a large active pressing roller 6 that drives the pointed tube to rotate, and a pair of driven pressing rollers 8 that cooperate with the large active pressing roller 6 to press the pointed tube tightly. The large active pressing roller 6 drives the pointed tube to rotate, and the pipe pressing mechanism 24 pushes forward to press the other end of the pointed tube. The rotary flattening mechanism 27 applies a pre-tightening force to press the tip of the pointed tube onto the laser welding head 7 for fusion welding, and welds the tip flat. The large active pressing roller drives the pointed tube to rotate to ensure the flatness of the tip welding pressure. The upper end of the working platform 1 is installed with a pipe placing rack 26, wherein the pipe placing rack 26 is located horizontally. The feeding device 22 is located inside the working platform 1. A pipe pushing mechanism 25 is installed at the upper end of the working platform 1. An electric clamp is installed at the output end of the pipe pushing mechanism 25 (the pipe pushing mechanism 25 is driven by a cylinder). The vertical pipe clamping mechanism 3 includes a rotating seat 32 installed at the upper end of the working platform 1 relative to the pipe rack 26. A servo motor is provided inside the rotating seat 32 to drive the first mechanical clamp 31 to rotate. The first mechanical clamp 31 is an electric clamp. A pipe feeding clamp 33 is provided on the working platform 1. The pipe feeding clamp 33 is driven by a cylinder to move horizontally. The pipe feeding clamp 33 is an electric clamp. The pressure head mechanism 4 includes a flattening mold 41 installed on the working platform 1. A lifting part 42 is installed at the upper end of the working platform 1. The lifting part 42 drives the top clamp 43 to move in the vertical direction with the help of a cylinder.A horizontal conveyor 44 is installed at the upper end of the work platform 1. The horizontal conveyor 44 drives a second mechanical clamp 45 via a cylinder. The second mechanical clamp 45 is driven by a servo motor to rotate on the horizontal conveyor 44. The material receiving box 5 is installed on the work platform 1 below the second mechanical clamp 45.

[0019] Working principle: align all the pointed copper tubes after spinning in one position and place them in the pointed tube storage mechanism 2. The pointed tube feeding boss 21 descends in the pointed tube storage mechanism 2. One of the arrow copper tubes will roll to the top of the pointed tube feeding boss 21 and get stuck. Then the pointed tube feeding boss 21 moves upward to lift up the copper tube. Finally, the horizontal feeding device 22 moves horizontally to the bottom of the pointed tube feeding boss 21. The pointed tube feeding boss 21 descends to allow the copper tube to be placed on the horizontal feeding device 22 and get stuck. The horizontal feeding device 22 moves horizontally. The copper tube is transported in the direction of movement. When the horizontal feeding device 22 transports the copper tube to the rotary welding flat mechanism 27, the horizontal feeding device 22 descends and places the copper tube on the placement rack 23. An electric clamp is set at the output end of the tube pressing mechanism 24. The electric clamp clamps the copper tube and pushes it to the rotary welding flat mechanism 27 under the action of the tube pressing mechanism 24. The tube pressing mechanism 24 pushes forward to press the other end of the pointed tube. The rotary welding flat mechanism 27 applies a pre-tightening force to press the tip of the pointed tube onto the laser welding head 7 for fusion welding, and the tip is welded flat. The copper tube with the flattened tip is pressed on the tube pressing mechanism 24. Under the action of the rotary welding mechanism 27, the copper tube is pulled out, and then the copper tube is put down and placed on the placement rack 23. The horizontal feeding device 22 moves upward to lift the copper tube. Finally, the horizontal feeding device 22 moves horizontally to the top of the tube rack 26. The horizontal feeding device 22 is lowered to allow the copper tube to be placed on the tube rack 26 and clamped. An electric clamp is set at the output end of the tube pressing mechanism 24. The electric clamp clamps the copper tube and is pushed to the first mechanical clamp 31 under the action of the tube pushing mechanism 25. The first mechanical clamp 31 clamps the copper tube and rotates the first mechanical clamp 31 by the rotating seat 32 to make the copper tube vertical. The copper tube is stood up and clamped by the tube feeding clamp 33, which transports the copper tube horizontally. The tube feeding clamp 33 transports the copper tube to the flattening mold 41, and uses the top clamp 43 to clamp the upper end of the copper tube. The copper tube is transported vertically under the action of the lifting part 42, and the flattening mold 41 is used to flatten the flattened part of the copper tube. The top clamp 43 is then used to pull up the flattened copper tube, and the second mechanical clamp 45 is used to clamp the copper tube. The copper tube is transported to the top of the material receiving box 5 under the action of the horizontal conveying part 44, and the second mechanical clamp 45 is released to place the copper tube into the material receiving box 5.

[0020] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification of the above embodiment based on the technical essence of the present invention that does not deviate from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A welding and pressing device for flat-end tubes, characterized in that: The invention comprises a working platform (1), wherein a pointed tube storage mechanism (2), a copper tube conveying part, a rotary flattening mechanism (27), a vertical tube clamping mechanism (3), a pressure head mechanism (4) and a material receiving box (5) are arranged above the working platform (1), wherein the spun copper tube is placed in the pointed tube storage mechanism (2), the spun copper tube is transported to the rotary flattening mechanism (27) by means of the copper tube conveying part, the pointed tip of the pointed tube is welded flat by means of the rotary flattening mechanism (27), the copper tube conveying part is used to transport the copper tube with the flattened tip to the vertical tube clamping mechanism (3), the vertical tube clamping mechanism (3) transports the copper tube to the pressure head mechanism (4) for flattening, and finally the copper tube is placed in the material receiving box (5).

2. The flat-end copper tube forming device for radiator according to claim 1, characterized in that: A pointed tube feeding boss (21) is provided inside the pointed tube storage mechanism (2) near an edge thereof, and the pointed tube feeding boss (21) is driven to rise and fall by a cylinder.

3. The flat-end copper tube forming device for radiator according to claim 1, characterized in that: A transverse feeding device (22) is provided at the upper end of the working platform (1), wherein the transverse feeding device (22) is driven by a cylinder to move in the horizontal direction, and the transverse feeding device (22) is driven by a cylinder to rise and fall in the vertical direction, wherein the transverse feeding device (22) is located between the pointed tube feeding bosses (21).

4. The flat-end copper tube forming device for radiator according to claim 3, characterized in that: The work platform (1) is provided with a rotary flat welding mechanism (27), a placement rack (23), and a pipe pressing mechanism (24), wherein the placement rack (23) is located on both sides of the transverse feeding device (22), and an electric clamp is installed at the output end of the pipe pressing mechanism (24).

5. The flat-end copper tube forming device for radiator according to claim 3, characterized in that: A pipe rack (26) is installed at the upper end of the working platform (1), wherein the pipe rack (26) is located inside the transverse feeding device (22). A pipe pushing mechanism (25) is installed at the upper end of the working platform (1), and an electric clamp is installed at the output end of the pipe pushing mechanism (25).

6. The flat-end copper tube forming device for radiator according to claim 5, characterized in that: The vertical pipe clamping mechanism (3) includes a rotating seat (32) installed at the upper end of the working platform (1) relative to the pipe rack (26), a servo motor is provided inside the rotating seat (32) to drive the first mechanical clamp (31) to rotate, wherein the first mechanical clamp (31) is an electric clamp, and a pipe delivery clamp (33) is provided on the working platform (1), wherein the pipe delivery clamp (33) is driven by a cylinder to move in a horizontal direction, wherein the pipe delivery clamp (33) is an electric clamp.

7. The flat-end copper tube forming device for radiator according to claim 6, characterized in that: The pressing head mechanism (4) includes a flattening die (41) mounted on a working platform (1), a lifting portion (42) is mounted on the upper end of the working platform (1), and the lifting portion (42) is driven by a cylinder to move a top clamp (43) in a vertical direction. A pressing rod is provided inside the flattening die (41), and the pressing rod is inserted into the bottom of the processed pointed tube to support the inner bottom surface of the welding and pressing part of the pointed tube and continue to flatten it.

8. The flat-end copper tube forming device for radiator according to claim 7, characterized in that: A horizontal conveying portion (44) is installed at the upper end of the working platform (1). The horizontal conveying portion (44) drives a second mechanical clamp (45) by means of a cylinder, and the second mechanical clamp (45) is driven to rotate on the horizontal conveying portion (44) by means of a servo motor.

9. The flat-end copper tube forming device for radiator according to claim 8, characterized in that: The material receiving box (5) is installed on the working platform (1) and is located below the second mechanical clamp (45).

10. A method for forming a flat-end copper tube for a radiator, characterized by: The flat-end copper tube forming device for a radiator according to any one of claims 1 to 9 comprises the following steps: S1, aligning all the pointed copper tubes after spinning to one position and placing them in the pointed tube storage mechanism (2); S2, the pointed tube feeding boss (21) descends in the pointed tube storage mechanism (2), and one of the arrow copper tubes rolls to the top of the pointed tube feeding boss (21) and is stuck, then the pointed tube feeding boss (21) moves upward to lift up the copper tube, and finally the transverse feeding device (22) moves horizontally to the bottom of the pointed tube feeding boss (21), and the pointed tube feeding boss (21) descends to allow the copper tube to be placed on the transverse feeding device (22) and stuck; S3, the lateral feeding device (22) moves in the horizontal direction to transport the copper tube. When the lateral feeding device (22) transports the copper tube to the rotary welding mechanism (27), the lateral feeding device (22) descends to place the copper tube on the placement rack (23); S4, an electric clamp is provided at the output end of the tube pressing mechanism (24), the electric clamp clamps the copper tube and pushes it to the rotating flat welding mechanism (27) under the action of the tube pressing mechanism (24), the tube pressing mechanism (24) pushes forward against the other end of the pointed tube, and the rotating flat welding mechanism (27) applies a pre-tightening force to press the tip of the pointed tube onto the laser welding head (7) for fusion welding; S5, the copper tube with the flattened tip is pulled out of the rotary flattening mechanism (27) under the action of the tube pressing mechanism (24), and then the copper tube is lowered and placed on the placement rack (23), the horizontal feeding device (22) moves upward to lift the copper tube, and finally the horizontal feeding device (22) moves horizontally to the top of the tube placement rack (26), and the horizontal feeding device (22) is lowered to allow the copper tube to be placed on the tube placement rack (26) and stuck; S6, an electric clamp is provided at the output end of the tube pressing mechanism (24), the electric clamp clamps the copper tube and pushes it to the first mechanical clamp (31) under the action of the tube pushing mechanism (25), the first mechanical clamp (31) clamps the copper tube, and the first mechanical clamp (31) is rotated by the rotating seat (32) to make the copper tube stand upright and be clamped by the tube feeding clamp (33), and the tube feeding clamp (33) transports the copper tube in the horizontal direction; S7, the tube feeding clamp (33) transports the copper tube to the flattening die (41), clamps the upper end of the copper tube with the top clamp (43), and transports the copper tube in the vertical direction under the action of the lifting part (42), and flattens the flattened part of the copper tube with the flattening die (41), then pulls up the flattened copper tube with the top clamp (43), clamps the copper tube with the second mechanical clamp (45), and transports the copper tube to the top of the material receiving box (5) under the action of the horizontal conveying part (44), releases the second mechanical clamp (45), and places the copper tube into the material receiving box (5).

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