High-frequency welding machine

Abstract

The utility model discloses a high-frequency welding machine which comprises a supporting frame and a mechanical arm, and a heating mechanism is arranged on the mechanical arm. A working platform and a driving mechanism are arranged on the supporting frame, the driving mechanism drives the working platform to rotate, positioning seats are distributed on the working platform in a surrounding mode, a water tank and a clamp mechanism are arranged on the positioning seats, the clamp mechanism is used for clamping a heat exchanger shell, a water inlet connected with an external water source is formed in the working platform, and a liquid guide pipe is connected between the water inlet and the water tank. The induction coil is novel in structure, adopts a water cooling mode for cooling, is good in cooling effect, is not easy to burn, and is long in service life.

Description

Technical Field

[0001] This utility model belongs to the field of welding machine technology, and in particular relates to a high-frequency welding machine. Background Technology

[0002] Unlike other welding machines, high-frequency welding machines can be used not only for welding various metal materials, but also for processes such as through-heating, melting, and heat treatment.

[0003] When manufacturing plate heat exchangers, a high-frequency welding machine is used to weld the heat exchanger shell and the pipeline. This high-frequency welding machine has the following defects: a large amount of heat is generated during the welding process, and the high temperature can easily burn out the induction coil. The finished product is hot and needs to be cooled before it can be taken out. The cooling is done manually by spraying water, which is a step-by-step operation, inefficient, laborious and inconvenient.

[0004] Existing patent document (publication number: CN203471335U) discloses "a four-station dip welding machine", whose cooling device uses air cooling, which has an unsatisfactory cooling effect and high energy consumption. Summary of the Invention

[0005] The purpose of this invention is to solve the above-mentioned technical problems existing in the prior art and to provide a high-frequency welding machine with a novel structure, which adopts water cooling, resulting in good cooling effect, making the induction coil less prone to burnout and extending its service life.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A high-frequency welding machine includes a support frame and a robotic arm, with a heating mechanism mounted on the robotic arm. The support frame has a working platform and a drive mechanism, which rotates the working platform. Positioning seats are arranged around the working platform, and each positioning seat has a water tank and a clamping mechanism for holding a heat exchanger shell. The working platform has an inlet for connecting to an external water source, and a liquid guide pipe connects the inlet to the water tank. This welding machine features a novel structure, employs water cooling for effective cooling, reduces the risk of induction coil burnout, and extends its service life.

[0008] Furthermore, the clamping mechanism includes a push-pull assembly, a first tube clamping bracket, and a second tube clamping bracket. The output end of the push-pull assembly is connected to the second tube clamping bracket. The first tube clamping bracket is located on the positioning seat, and the second tube clamping bracket is distributed relative to the first tube clamping bracket.

[0009] Furthermore, the water tank is equipped with an overflow port. New cooling water is added while the existing cooling water flows out, achieving water exchange and maintaining a certain water level in the tank, so that the heat exchanger shell is submerged in water, thus achieving a continuous cooling effect.

[0010] Furthermore, the support frame is equipped with a liquid collection tank, which is used to collect the overflow water from the water tank, avoiding pollution of the working environment and making cleaning convenient.

[0011] Furthermore, the positioning seat is equipped with a branch pipe assembly, which includes a fixed shaft, a rotating plate, and a branch pipe rod. The fixed shaft is located on the positioning seat, and the branch pipe rod is located on the rotating plate. The branch pipe rod is used to support the heat exchanger piping. The rotating plate is sleeved on the fixed shaft, and a first screw is screwed onto the rotating plate. The first screw abuts against the fixed shaft to restrict the free movement of the rotating plate. The orientation of the rotating plate can be adjusted by rotation, thereby changing the orientation of the branch pipe rod to adapt to heat exchanger piping of different shapes. After the position is determined, the first screw is tightened to lock it in place.

[0012] Furthermore, a slider is slidably connected to the rotating plate, and the branch pipe rod is mounted on the slider. A second screw is screwed onto the slider, and the second screw abuts against the rotating plate to restrict the slider's free movement. The position of the slider can be flexibly adjusted, thereby changing the position of the branch pipe rod to adapt to heat exchanger pipes of different shapes. After determining the position, the second screw is tightened to lock it in place.

[0013] Furthermore, the working platform is equipped with a fixed base, on which a branch pipe assembly is mounted. The fixed base also has locking holes corresponding to the fixed shaft. The branch pipe assembly can be detached from the fixed base for easy installation and use, offering flexibility and convenience.

[0014] Furthermore, a third screw is screwed onto the fixed base. The third screw abuts against the fixed shaft to restrict the fixed shaft from freely coming out of the locking hole, so that the fixed shaft is limited and fixed on the fixed base, which is stable and reliable and prevents the heat exchanger pipeline from shaking due to the loosening of the fixed shaft. The third screw can be loosened during disassembly.

[0015] Furthermore, the positioning seat is equipped with a pipe support frame, which is used to support the heat exchanger piping, increase the support points, and facilitate the stable placement of the heat exchanger piping, thereby ensuring the welding quality.

[0016] Furthermore, the positioning seat is equipped with a locking block located inside the water tank. The locking block has a slot corresponding to the heat exchanger shell, enabling rapid installation and positioning of the heat exchanger shell.

[0017] This utility model, by adopting the above-mentioned technical solution, has the following beneficial effects:

[0018] 1. Mount the heat exchanger shell onto the clamping block, so that one side of the heat exchanger shell abuts against the connector of the first tube clamping bracket. Then, activate the stroke cylinder to move the second tube clamping bracket forward, so that the connector of the second tube clamping bracket locks the other side of the heat exchanger shell. The first tube clamping bracket and the second tube clamping bracket work together to clamp and fix the heat exchanger shell. This method is applicable to heat exchanger shells of different sizes and has strong applicability.

[0019] 2. The branch pipe assembly can adapt to heat exchanger pipes of different shapes. The position of the rotating plate can be adjusted by rotation, thereby changing the position of the branch pipe rod. After determining the position, tighten the first screw to make it abut against the fixed shaft to achieve locking. The position of the slider can be flexibly adjusted, thereby changing the position of the branch pipe rod. After determining the position, tighten the second screw to make it abut against the rotating plate to achieve locking.

[0020] 3. External water enters through the inlet and is transported to the water tank through the liquid guide pipe. During the welding process, the water cools the heat exchanger shell, thus ensuring the welding quality. New cooling water is added while the original cooling water flows out, achieving water exchange and maintaining a certain water level in the water tank, so that the heat exchanger shell is submerged in water, achieving a continuous cooling effect. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings:

[0022] Figure 1 This is a schematic diagram of the structure of a high-frequency welding machine according to the present invention;

[0023] Figure 2 This is a schematic diagram of the welding of the heat exchanger shell and heat exchanger piping in this utility model;

[0024] Figure 3 This is a schematic diagram of the heating mechanism in this utility model;

[0025] Figure 4 This is a schematic diagram of the positioning seat in this utility model;

[0026] Figure 5 This is a schematic diagram of the connection between the fixed base and the branch pipe assembly in this utility model;

[0027] Figure 6 This is a schematic diagram of the water supply pipeline layout in this utility model.

[0028] In the diagram: 1-Support frame; 2-Robotic arm; 3-Heating mechanism; 4-Induction coil; 5-Working platform; 6-Positioning seat; 7-Clamping block; 8-First tube clamping bracket; 9-Heat exchanger shell; 10-Second tube clamping bracket; 11-Stroke cylinder; 12-Branch assembly; 13-Fixed shaft; 14-Rotating plate; 15-Branch rod; 16-Slider; 17-Branch bracket; 18-Fixed base; 19-Clamping hole; 20-Water tank; 21-Inlet; 22-Liquid guide pipe; 23-Main pipe; 24-Overflow port; 25-Collection tank. Detailed Implementation

[0029] like Figure 1 and Figure 3As shown, this utility model discloses a high-frequency welding machine, which includes a support frame 1 and a robotic arm 2. A heating mechanism 3 is connected to the robotic arm 2. The heating mechanism 3 includes a high-frequency induction heating power supply, a power adapter, and an induction coil 4. The power adapter connects the induction coil 4 and the high-frequency induction heating power supply. After the high-frequency induction heating power supply is powered on, the induction coil 4 heats the workpiece. This is prior art and will not be described in detail here.

[0030] like Figure 2 As shown, the support frame 1 is equipped with a working platform 5 and a drive mechanism. The drive mechanism can be a geared motor. The output end of the geared motor is connected to the working platform 5. Positioning seats 6 are distributed around the working platform 5. The positioning seats 6 are equipped with a water tank 20, a locking block 7 and a clamping mechanism. The locking block 7 is located inside the water tank 20. The locking block 7 is equipped with a locking groove corresponding to the heat exchanger shell 9, so as to realize the quick installation and positioning of the heat exchanger shell 9.

[0031] The clamping mechanism includes a push-pull assembly, a first tube clamping bracket 8, and a second tube clamping bracket 10. The push-pull assembly can be a stroke cylinder 11. The output end of the stroke cylinder 11 is connected to the second tube clamping bracket 10. The first tube clamping bracket 8 is mounted on the positioning seat 6. Both the second tube clamping bracket 10 and the first tube clamping bracket 8 are provided with connector slots. The connector slots correspond to the heat exchanger shell interface. The second tube clamping bracket 10 and the first tube clamping bracket 8 are distributed opposite each other on both sides of the water tank 20.

[0032] The heat exchanger shell 9 is clamped onto the clamping block 7, so that one side interface of the heat exchanger shell 9 abuts against the connector bayonet of the first tube clamping bracket 8. Then, the stroke cylinder 11 is activated, which drives the second tube clamping bracket 10 to move forward, so that the connector bayonet of the second tube clamping bracket 10 clamps the other side interface of the heat exchanger shell 9. The first tube clamping bracket 8 and the second tube clamping bracket 10 cooperate to clamp and fix the heat exchanger shell 9. This method is applicable to heat exchanger shells 9 of different sizes and has strong applicability.

[0033] After the geared motor starts, it drives the working platform 5 to rotate. The working platform 5 drives the positioning seats 6 to reach the heating position one by one, which is flexible and convenient.

[0034] The positioning seat 6 is equipped with a branch pipe assembly 12, which includes a fixed shaft 13, a rotating plate 14, and a branch pipe rod 15. The fixed shaft 13 is fixed on the positioning seat 6. A slider 16 is slidably connected to the rotating plate 14. The slider 16 is equipped with the branch pipe rod 15. The branch pipe rod 15 has a clamping port so that it can clamp the heat exchanger pipe. The rotating plate 14 is sleeved on the fixed shaft 13. A first screw is screwed onto the rotating plate 14. The first screw abuts against the fixed shaft 13, and the friction is large, which can restrict the free movement of the rotating plate 14. The orientation of the rotating plate 14 can be rotated and adjusted, thereby changing the orientation of the branch pipe rod 15 to adapt to heat exchanger pipes of different shapes. After the position is determined, the first screw is tightened to lock it.

[0035] A second screw is screwed onto the slider 16. The second screw abuts against the rotating plate 14, and the friction is large, which can restrict the free sliding of the slider 16. The position of the slider 16 can be flexibly adjusted, thereby changing the position of the branch pipe rod 15 to adapt to heat exchanger pipelines of different shapes. After the position is determined, the second screw is tightened to achieve locking.

[0036] The positioning seat 6 is equipped with a pipe support 17, which has a pipe clamping port so that the pipe support 17 can clamp the heat exchanger pipes, increase the support points, and facilitate the stable placement of the heat exchanger pipes, thereby ensuring the welding quality.

[0037] like Figure 5 As shown, the working platform 5 is provided with a fixed base 18, the fixed base 18 is provided with a branch pipe assembly 12, and the fixed base 18 is provided with a snap hole 19 corresponding to the fixed shaft 13. The branch pipe assembly 12 can be detached from the fixed base 18, and can be installed and used as needed, which is flexible and convenient.

[0038] A third screw is screwed onto the fixed base 18. The third screw abuts against the fixed shaft 13, and the friction is large, which can restrict the fixed shaft 13 from freely coming out of the locking hole 19, so that the fixed shaft 13 is fixed on the fixed base 18, which is stable and reliable, and prevents the fixed shaft 13 from loosening and causing the heat exchanger pipeline to shake. When disassembling, simply loosen the third screw.

[0039] like Figure 4 and Figure 6 As shown, the working platform 5 has an inlet 21 for connecting to an external water source. A main pipe 23 is connected to the inlet 21, and a liquid guide pipe 22 connects the main pipe 23 to the water tank 20. External cooling water is pumped into the inlet 21, distributed to the liquid guide pipe 22 via the main pipe 23, and then transported to the water tank 20. During the welding process, the water cools the heat exchanger shell 9, thus ensuring the welding quality.

[0040] The water tank 20 is provided with an overflow port 24. New cooling water is added and the original cooling water flows out, realizing water exchange and maintaining a certain water level in the water tank 20, so that the heat exchanger shell 9 is submerged in water, achieving a continuous cooling effect.

[0041] The support frame 1 is equipped with a liquid collection tank 25, and the working platform 5 is located in the liquid collection tank 25. The water flowing out from the overflow port 24 falls into the liquid collection tank 25, which avoids polluting the working environment and is easy to clean. The inner bottom surface of the liquid collection tank 25 provides support for the working platform 5, which improves the stability of the working platform 5 when it rotates.

[0042] The above are merely specific embodiments of this utility model, but the technical features of this utility model are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on this utility model to solve essentially the same technical problems and achieve essentially the same technical effects are all covered within the protection scope of this utility model.

Claims

1. A high-frequency welding machine, comprising: A support frame and a robotic arm, wherein the robotic arm is equipped with a heating mechanism; Its features are: The support frame is equipped with a working platform and a drive mechanism. The drive mechanism drives the working platform to rotate. Positioning seats are distributed around the working platform. The positioning seats are equipped with a water tank and a clamping mechanism. The clamping mechanism is used to clamp the heat exchanger shell. The working platform has an inlet for connecting to an external water source. A liquid guide pipe is connected between the inlet and the water tank.

2. The high-frequency welding machine according to claim 1, characterized in that: The clamping mechanism includes a push-pull assembly, a first tube clamping bracket, and a second tube clamping bracket. The output end of the push-pull assembly is connected to the second tube clamping bracket. The first tube clamping bracket is disposed on the positioning seat, and the second tube clamping bracket is distributed relative to the first tube clamping bracket.

3. A high-frequency welding machine according to claim 1, characterized in that: The water tank is equipped with an overflow port.

4. A high-frequency welding machine according to claim 3, characterized in that: The support frame is equipped with a liquid collection tank, which is used to collect the overflow water from the water tank.

5. A high-frequency welding machine according to claim 1, characterized in that: The positioning seat is provided with a branch pipe assembly, which includes a fixed shaft, a rotating plate, and a branch pipe rod. The fixed shaft is located on the positioning seat, and the branch pipe rod is located on the rotating plate. The branch pipe rod is used to support the heat exchanger pipeline. The rotating plate is sleeved on the fixed shaft, and a first screw is screwed onto the rotating plate. The first screw abuts against the fixed shaft to restrict the free movement of the rotating plate.

6. A high-frequency welding machine according to claim 5, characterized in that: A slider is slidably connected to the rotating plate, the support rod is disposed on the slider, and a second screw is screwed onto the slider. The second screw abuts against the rotating plate to restrict the slider from sliding freely.

7. A high-frequency welding machine according to claim 5, characterized in that: The working platform is provided with a fixed base, the fixed base is provided with the branch pipe assembly, and the fixed base is provided with a locking hole corresponding to the fixed shaft.

8. A high-frequency welding machine according to claim 7, characterized in that: A third screw is screwed onto the fixed base, and the third screw abuts against the fixed shaft to prevent the fixed shaft from freely dislodging from the locking hole.

9. A high-frequency welding machine according to claim 1, characterized in that: The positioning seat is equipped with a pipe support, which is used to support the heat exchanger piping.

10. A high-frequency welding machine according to claim 1, characterized in that: The positioning seat is equipped with a locking block, which is located inside the water tank and is used to position the heat exchanger shell.

Images