Stainless steel evaporator welding device

Abstract

The application discloses a stainless steel evaporator welding device and belongs to the field of welding equipment.The device comprises a base, a supporting roller is fixedly connected to the middle of the top of the base, second electric sliding rails are arranged at the middle of the two sides of the upper surface of the base, a mounting frame is slidably connected to the inside of the second electric sliding rail, a first hydraulic rod is fixedly connected to the top of the mounting frame, a welding gun is fixedly connected to the output end of the first hydraulic rod, and a rotating assembly for rotating the evaporator is arranged at one end of the two sides of the upper surface of the base.The first driving motor can be started to drive the rotating plate to rotate as a whole, so that the evaporator tube can be rotated, the welding position can be changed, the fixed evaporator does not need to be disassembled to change the position, the disassembling time is reduced, the tearing of the welding position which is not tightly connected by external force is avoided, and the welding efficiency and quality can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of welding equipment, more particularly to a stainless steel evaporator welding device. BACKGROUND

[0002] Evaporator is a device that transfers part of the heat of hot fluid to the exchanged normal temperature fluid, also known as heat exchanger or heat exchanger. Heat exchanger is widely used, such as heating radiator in daily life, condenser in steam turbine device and oil cooler on space rocket, etc. are heat exchanger, which is also widely used in chemical, petroleum, power, atomic energy and other industrial departments.

[0003] The deficiencies of the prior art: at present, in the manufacturing process of high-temperature evaporator pipe cylinder, the metal plate material needs to be cut and rolled after cutting, and the preliminarily formed pipe cylinder is welded after rolling. If the plate itself has a certain elasticity, a larger weld will be generated after rolling, and the welding difficulty is higher.

[0004] In order to solve the above problems, a welding device for air conditioner evaporator production is disclosed in Chinese patent No. CN213497470U, which sets up a mounting box to fix the evaporator conveniently, and the operation is simple and convenient. The fixed mechanism makes the evaporator turn over more easily and quickly, greatly reduces the labor intensity of the workers, and improves the work efficiency to a certain extent. However, the evaporator pipe cylinder needs to be manually replaced in position, which will cause cracks in the welding position under the action of external force during the position changing process, resulting in reduced welding quality. SUMMARY

[0005] In view of the problems existing in the prior art, the purpose of the present application is to provide a stainless steel evaporator welding device.

[0006] In order to solve the above problems, the present application adopts the following technical scheme.

[0007] A stainless steel evaporator welding device, comprising a base, the top middle of the base is fixedly connected with a supporting roller, the middle of the upper surface of the base on both sides is provided with a second electric sliding rail, the inside of the second electric sliding rail is slidably connected with a mounting frame, the top of the mounting frame is fixedly connected with a first hydraulic rod, the output end of the first hydraulic rod is fixedly connected with a welding gun, one end of the upper surface of the base on both sides is provided with a rotating assembly for rotating the evaporator.

[0008] The rotating assembly includes a first electric sliding rail fixed at one end of the two sides of the upper surface of the base and an impact assembly arranged in the inside of the mounting frame, the inside of the first electric sliding rail is slidably connected with the side plate, the two side plates are fixedly connected with the fixed plate, one side of the fixed plate is fixedly connected with the first drive motor, the output end of the first drive motor is fixedly connected with the rotating plate, two grooves are arranged in the inside of the rotating plate, one side of the rotating plate is fixedly connected with the second hydraulic rod, and the output end of the second hydraulic rod is fixedly connected with the arc-shaped clamping plate.

[0009] Further, one side of the arc-shaped clamping plate is slidably arranged in the groove, the inside of the arc-shaped clamping plate is provided with a non-slip pad, and the arc-shaped clamping plate is in a circular arc shape.

[0010] The impact assembly includes a second drive motor fixed on one side of the mounting frame and two vibration rods slidably arranged in the inside of the mounting frame, one side of the vibration rod is fixedly connected with a rubber ball, one side of the two vibration rods is fixedly connected with a transmission rod, the outer surface of the vibration rod is sleeved with a first spring, the outer surface of the vibration rod is fixedly connected with a drive rod, the output end of the second drive motor is fixedly connected with a rotating shaft, and the outer surface of the rotating shaft is fixedly connected with two triangular blocks.

[0011] One side of the rotating shaft penetrates the inside of the mounting frame, the first spring is fixedly connected with the mounting frame and the transmission rod on the two sides, the two triangular blocks are fixedly arranged on the outer surface of the rotating shaft about the center, the drive rod and the oblique side of the triangular block are slidably arranged, and the inside of the rotating shaft is provided with a polishing assembly for polishing the welding joint.

[0012] The polishing assembly includes a receiving groove arranged in the inside of the rotating shaft, one side of the inside of the receiving groove is fixedly connected with a second spring, one side of the second spring is fixedly connected with a rectangular rod, and one side of the rectangular rod is fixedly connected with a polishing sand wheel.

[0013] The rectangular rod is slidably arranged in the inside of the receiving groove, and the polishing sand wheel is arranged between the two rubber balls

[0014] One side of the upper surface of the base away from the first electric sliding rail is provided with a cooling assembly, the cooling assembly includes a water tank fixed on one side of the upper surface of the base, the top of the water tank is fixedly connected with a top plate, the top of the top plate is fixedly connected with a water pump, the output end of the water pump is fixedly connected with a water pipe, the outer surface of the water pipe is uniformly fixedly connected with a first connecting pipe, the inside of the first connecting pipe is slidably connected with a second connecting pipe, the top of the second connecting pipe is fixedly connected with an arc-shaped pipe, and the outer surface of the arc-shaped pipe is provided with an adjusting assembly.

[0015] The inside of the first connecting pipe is communicated with the inside of the water pipe, the inside of the second connecting pipe is communicated with the inside of the arc-shaped pipe, the outer surface of the second connecting pipe is provided with a sealing sleeve, the second connecting pipe and the first connecting pipe slide relative to each other, and the input end of the water pump extends to the inside of the water tank.

[0016] The adjusting assembly comprises a threaded groove arranged on the outer surface of the water pipe, an internally threaded pipe is threadedly connected to the outer surface of the threaded groove, one side of the internally threaded pipe is rotatably connected with a circular ring, and the outer surface of the circular ring is hingedly connected with a hinge rod.

[0017] The other end of the hinge rod is hingedly connected with the arc-shaped pipe, the hinge rod is uniformly hingedly connected to the outer surface of the circular ring, the internally threaded pipe is threadedly connected with the threaded groove, and the internally threaded pipe is connected with the circular ring through a bearing.

[0018] Compared with the prior art, the beneficial effects of the present application are:

[0019] 1. The present application is provided with a rotating assembly, the first driving motor drives the rotating plate to rotate as a whole, thereby driving the evaporator tube to rotate, changing the welding position, so that the fixed evaporator can be changed without disassembly, reducing the disassembly time, avoiding tearing of the welding position which is not tightly connected by external force, thereby improving the welding efficiency and quality.

[0020] 2. The present application is provided with an impact assembly, the triangular block inclined edge pushes the driving rod to approach the mounting frame, drives the rubber ball away from the evaporator, the transmission rod pulls the first spring to stretch, when the triangular block passes through the driving rod, the rubber ball quickly resets under the elastic force of the first spring, impacts the welding position to knock off the welding slag from the evaporator, the rotating shaft continuously rotates to realize the continuous impact of the rubber ball, while the rubber ball knocks off the welding slag, the first driving motor drives the evaporator to rotate, so that the welding slag can be knocked off comprehensively.

[0021] 3. The present application is provided with a polishing assembly, under the action of the second spring, the polishing grinding wheel is always closely attached to the welding position, so that the polishing grinding wheel has better polishing effect, and can be synchronized with the slag knocking operation, greatly reducing the operation steps after welding, shortening the post-welding treatment time, and improving the practicability of the device. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the present application;

[0023] Figure 2 It is a structural schematic diagram of the rotating assembly of the present application;

[0024] Figure 3Structure diagram of the impact assembly of the application;

[0025] Figure 4 Structure diagram of the rotating shaft of the application;

[0026] Figure 5 Structure diagram of the cooling assembly of the application;

[0027] Figure 6 Structure diagram of the adjusting assembly of the application;

[0028] Figure 7 Structure diagram of the water pipe of the application.

[0029] Explanation of the reference numerals in the drawings:

[0030] 1, base; 2, supporting roller; 3, mounting frame; 4, first hydraulic rod; 5, welding gun;

[0031] 6, rotating assembly; 61, first electric sliding rail; 62, side plate; 63, fixed plate; 64, first driving motor; 65, arc-shaped clamping plate; 66, rotating plate; 67, second hydraulic rod;

[0032] 68, impact assembly; 681, second driving motor; 682, transmission rod; 683, first spring; 684, vibrating rod; 685, driving rod; 686, rubber ball; 687, triangular block; 688, rotating shaft;

[0033] 69, polishing assembly; 691, rectangular rod; 692, polishing grinding wheel; 693, second spring; 694, storage groove; 610, slot;

[0034] 7, cooling assembly; 71, water tank; 72, top plate; 73, water pump; 74, water pipe; 75, first connecting pipe; 76, second connecting pipe; 77, arc-shaped pipe;

[0035] 78, adjusting assembly; 781, threaded groove; 782, internally threaded pipe; 783, circular ring; 784, hinged rod;

[0036] 8, second electric sliding rail. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the application.

[0038] Please refer to Figures 1 to 7The utility model provides a stainless steel evaporator welding device, including base 1, the middle part of the top of base 1 is fixedly connected with support roller 2, the middle part of the both sides of base 1 upper surface is provided with second electric slide 8, the inside slide of second electric slide 8 is connected with mounting bracket 3, the top of mounting bracket 3 is fixedly connected with first hydraulic rod 4, the output of first hydraulic rod 4 is fixedly connected with welding gun 5, one end of the both sides of base 1 upper surface is provided with rotating assembly 6 for rotating evaporator.

[0039] As Figure 2 The rotating assembly 6 includes a first electric slide 61 fixed to one end of the both sides of the upper surface of the base 1 and a striking assembly 68 arranged inside the mounting bracket 3. The inside of the first electric slide 61 is slidably connected with a side plate 62. The two side plates 62 are fixedly connected with a fixed plate 63. One side of the fixed plate 63 is fixedly connected with a first drive motor 64. The output of the first drive motor 64 is fixedly connected with a rotating plate 66. Two grooves 610 are formed inside the rotating plate 66. One side of the rotating plate 66 is fixedly connected with a second hydraulic rod 67. The output of the second hydraulic rod 67 is fixedly connected with an arc-shaped clamping plate 65.

[0040] One side of the arc-shaped clamping plate 65 is slidably located inside the groove 610. The inner side of the arc-shaped clamping plate 65 is provided with a non-slip pad. The arc-shaped clamping plate 65 is in a circular arc shape.

[0041] The evaporator tube cylinder to be welded is placed between the two arc-shaped clamping plates 65. The two second hydraulic rods 67 are started to drive the arc-shaped clamping plates 65 to move. The two arc-shaped clamping plates 65 clamp and fix the evaporator tube cylinder. The first electric slide 61 is started to drive the two side plates 62 to move. The two side plates 62 drive the evaporator tube cylinder to move downward of the welding gun 5. Until the welding position of the evaporator tube cylinder is directly below the welding gun 5. The first hydraulic rod 4 drives the welding gun 5 to weld. At this time, the first drive motor 64 is started to drive the rotating plate 66 to rotate as a whole, so as to drive the evaporator tube cylinder to rotate, change the welding position, so as to improve the welding efficiency and quality without disassembling the fixed evaporator to change the position, reduce the disassembly time, avoid external force to cause tearing of the welding position not tight enough, thereby improving the welding efficiency and quality.

[0042] As Figure 3 The striking assembly 68 includes a second drive motor 681 fixed to one side of the mounting bracket 3 and two vibration rods 684 slidably arranged inside the mounting bracket 3. One side of the vibration rod 684 is fixedly connected with a rubber ball 686. One side of the two vibration rods 684 is fixedly connected with a transmission rod 682. The outer surface of the vibration rod 684 is sleeved with a first spring 683. The outer surface of the vibration rod 684 is fixedly connected with a drive rod 685. The output of the second drive motor 681 is fixedly connected with a rotating shaft 688. The outer surface of the rotating shaft 688 is fixedly connected with two triangular blocks 687.

[0043] One side of the rotating shaft 688 penetrates the inside of the mounting frame 3, the first spring 683 is fixed on the two sides of the mounting frame 3 and the transmission rod 682 respectively, the two triangular blocks 687 are fixed on the outer surface of the rotating shaft 688 about the center, the driving rod 685 slides with the inclined edge of the triangular block 687, and the polishing assembly 69 is arranged in the inside of the rotating shaft 688.

[0044] When one circle of the evaporator tube is welded completely, there is some welding slag at the welding position, which needs to be removed in time. The second driving motor 681 is opened in time after welding to drive the rotating shaft 688 to rotate, the rotating shaft 688 drives the two triangular blocks 687 to rotate at the same time, the triangular block 687 rotates in a circle, the inclined edge of the triangular block 687 pushes the driving rod 685 to move close to the mounting frame 3, the driving rod 685 drives the rubber ball 686 to move away from the evaporator, the transmission rod 682 pulls the first spring 683 to stretch, when the triangular block 687 passes through the driving rod 685, the rubber ball 686 is reset quickly under the elastic force of the first spring 683, the welding slag is knocked off from the evaporator by the impact of the rubber ball 686, the rotating shaft 688 rotates continuously, the rubber ball 686 impacts continuously, and the evaporator is rotated by the first driving motor 64 at the same time, so that the welding slag can be knocked off completely.

[0045] As shown in Figures 3-4 The polishing assembly 69 comprises a receiving groove 694 arranged in the inside of the rotating shaft 688, a second spring 693 fixedly connected to one side in the inside of the receiving groove 694, a rectangular rod 691 fixedly connected to one side of the second spring 693, and a polishing grinding wheel 692 fixedly connected to one side of the rectangular rod 691.

[0046] The rectangular rod 691 slides in the inside of the receiving groove 694, and the polishing grinding wheel 692 is located between the two rubber balls 686.

[0047] When the rubber ball 686 knocks the welding slag, the rotating shaft 688 rotates synchronously, the rotating shaft 688 drives the polishing grinding wheel 692 to rotate at high speed through the rectangular rod 691, because the rectangular rod 691 slides in the inside of the rotating shaft 688, the polishing grinding wheel 692 is always closely attached to the welding position under the action of the second spring 693 when the polishing grinding wheel 692 contacts with the evaporator, so that the polishing grinding wheel 692 has a better polishing effect, and can operate synchronously with the knocking slag operation, greatly reducing the operation steps after welding, shortening the processing time after welding, and improving the practicability of the device.

[0048] As shown in Figure 5 and Figure 7As shown, the bottom 1 upper surface away from the first electric slide 61 side of the rail 61 is provided with cooling assembly 7, cooling assembly 7 includes fixed in the bottom 1 upper surface one side of the water tank 71, the top of the water tank 71 is fixedly connected with the top plate 72, the top of the top plate 72 is fixedly connected with the water pump 73, the output end of the water pump 73 is fixedly connected with the water pipe 74, the outer surface of the water pipe 74 is uniformly fixedly connected with the first connecting pipe 75, the inside of the first connecting pipe 75 is slidably connected with the second connecting pipe 76, the top of the second connecting pipe 76 is fixedly connected with the arc-shaped pipe 77, the outer surface of the arc-shaped pipe 77 is provided with the adjusting assembly 78.

[0049] The inside of the first connecting pipe 75 and the inside of the water pipe 74 are in communication with each other, the inside of the second connecting pipe 76 and the inside of the arc-shaped pipe 77 are in communication with each other, the outer surface of the second connecting pipe 76 is provided with a sealing sleeve, the second connecting pipe 76 and the first connecting pipe 75 slide relative to each other, the input end of the water pump 73 extends into the inside of the water tank 71, and the outer surface of the water pipe 74 is provided with the adjusting assembly 78 for adjusting the position of the arc-shaped pipe 77.

[0050] As shown in Figure 6 The adjusting assembly 78 includes a threaded groove 781 provided on the outer surface of the water pipe 74, a threaded sleeve 782 threadedly connected to the outer surface of the threaded groove 781, a circular ring 783 rotatably connected to one side of the threaded sleeve 782, and a hinged rod 784 hingedly connected to the outer surface of the circular ring 783.

[0051] The other end of the hinged rod 784 is hingedly connected to the arc-shaped pipe 77, and the hinged rod 784 is uniformly hingedly connected to the outer surface of the circular ring 783. The threaded sleeve 782 is connected to the threaded groove 781 by the bearing circular ring 783.

[0052] After welding, the stainless steel has poor thermal conductivity, and the accumulated welding heat can easily cause warping, so the welded part needs to be cooled in time, otherwise quality problems may occur at the welded part. When the evaporator tube cylinder moves downward during welding, it simultaneously moves closer to the cooling assembly 7, so that the cooling assembly 7 gradually moves into the inside of the evaporator tube cylinder. After welding, the water pump 73 is started to deliver the water in the water tank 71 to the inside of the water pipe 74, and then to the inside of the arc-shaped pipe 77 under the action of the first connecting pipe 75 and the second connecting pipe 76, and finally sprayed in the form of atomization by the adjusting assembly 78. At the same time of water spraying, the evaporator rotates under the driving of the first driving motor 64. The small water droplets sprayed can fully contact the welded part, effectively cool the welded part, and avoid the influence of high temperature on the welding quality and the stainless steel evaporator. At the same time, when the water flow collects at the bottom of the evaporator tube cylinder, it can detect whether there is water leakage at the welded part.

[0053] Meanwhile, the positions of the plurality of arc-shaped tubes 77 are adjusted according to the diameter of the evaporator tube, when the diameter is too large, the position of the arc-shaped tube 77 can be changed, so that the arc-shaped tube 77 is closer to the welding position, and the inner threaded tube 782 is pushed to the arc-shaped tube 77 under the action of the threaded groove 781, the circular ring 783 pushes one end of the articulated rod 784 to move, the arc-shaped tube 77 is pushed to move through the articulated rod 784, so that the second connecting tube 76 moves inside the first connecting tube 75, so that the arc-shaped tube 77 is closer to the welding position, so that the water mist cannot contact the welding position due to the distance between the arc-shaped tube 77 and the welding position.

[0054] Method for use: the evaporator tube to be welded is placed between the two arc-shaped clamping plates 65, the two arc-shaped clamping plates 65 are started to move by the two second hydraulic rods 67, the two arc-shaped clamping plates 65 clamp and fix the evaporator tube, the two side plates 62 are moved by starting the first electric sliding rail 61, the evaporator tube is moved downward by the two side plates 62, until the evaporator tube is located directly below the welding gun 5, the first hydraulic rod 4 drives the welding gun 5 to weld, at this time the first driving motor 64 starts to drive the whole rotating plate 66 to rotate, so as to drive the evaporator tube to rotate and change the welding position;

[0055] The second driving motor 681 is started to work, the rotating shaft 688 is rotated, the two triangular blocks 687 are rotated at the same time, the triangular block 687 is circumferentially rotated, the hypotenuse of the triangular block 687 pushes the driving rod 685 to approach the mounting frame 3, the rubber ball 686 is driven away from the evaporator, the first spring 683 is stretched by the driving rod 685, and the rubber ball 686 is quickly reset under the elastic force of the first spring 683, the welding position is impacted to knock off the welding slag from the evaporator, the rotating shaft 688 is continuously rotated to realize the continuous impact of the rubber ball 686, and the first driving motor 64 drives the evaporator to rotate at the same time, so that the welding slag can be knocked off comprehensively;

[0056] When the rotating shaft 688 rotates synchronously, the polishing grinding wheel 692 is rotated at high speed by the rectangular rod 691, because the rectangular rod 691 is slidably sleeved in the rotating shaft 688, the polishing grinding wheel 692 is in close contact with the welding position under the action of the second spring 693, so that the polishing grinding wheel 692 has better polishing effect;

[0057] The water pump 73 starts to deliver the water in the water tank 71 to the inside of the water pipe 74, and then to the inside of the arc-shaped pipes 77 through the first connecting pipe 75 and the second connecting pipe 76, and finally sprayed out in the form of mist by the adjusting assembly 78 to cool the welding position. By rotating the inner threaded pipe 782, the positions of the arc-shaped pipes 77 are changed through the transmission, so that the water mist can fully contact with the welding position.

[0058] The above description is merely preferred embodiments of the present application; however, the protection scope of the present application is not limited thereto. Any person skilled in the art, according to the technical range disclosed by the present application and the improved concept of the technical solution of the present application, can make equivalent replacements or changes, which should be covered in the protection scope of the present application.

Claims

1. A stainless steel evaporator welding device, comprising a base (1), the middle of the top of the base (1) is fixedly connected with a supporting roller (2), the middle of the upper surface of the base (1) is provided with a second electric sliding rail (8), the inside of the second electric sliding rail (8) is slidably connected with a mounting rack (3), the top of the mounting rack (3) is fixedly connected with a first hydraulic rod (4), and the output end of the first hydraulic rod (4) is fixedly connected with a welding gun (5); characterized in that One end of the upper surface of the base (1) is provided with a rotating assembly (6) for rotating the evaporator; The rotating assembly (6) comprises a first electric sliding rail (61) fixed at one end of the upper surface of the base (1) and an impact assembly (68) arranged in the inside of the mounting rack (3), the impact assembly (68) is used for impacting the welding position to knock off the welding slag from the evaporator, the inside of the first electric sliding rail (61) is slidably connected with a side plate (62), the two side plates (62) are fixedly connected with a fixed plate (63), one side of the fixed plate (63) is fixedly connected with a first drive motor (64), the output end of the first drive motor (64) is fixedly connected with a rotating plate (66), two slotted holes (610) are formed in the inside of the rotating plate (66), one side of the rotating plate (66) is fixedly connected with a second hydraulic rod (67), and the output end of the second hydraulic rod (67) is fixedly connected with an arc-shaped clamping plate (65); The upper surface of the base (1) is provided with a cooling assembly (7) away from the first electric sliding rail (61), the cooling assembly (7) comprises a water tank (71) fixed on one side of the upper surface of the base (1), the top of the water tank (71) is fixedly connected with a top plate (72), the top of the top plate (72) is fixedly connected with a water pump (73), the output end of the water pump (73) is fixedly connected with a water pipe (74), the outer surface of the water pipe (74) is uniformly fixedly connected with a first connecting pipe (75), the inside of the first connecting pipe (75) is slidably connected with a second connecting pipe (76), the top of the second connecting pipe (76) is fixedly connected with an arc-shaped pipe (77), and the outer surface of the arc-shaped pipe (77) is provided with an adjusting assembly (78); The inside of the first connecting pipe (75) and the inside of the water pipe (74) are in communication with each other, the inside of the second connecting pipe (76) and the inside of the arc-shaped pipe (77) are in communication with each other, the outer surface of the second connecting pipe (76) is provided with a sealing sleeve, the second connecting pipe (76) and the first connecting pipe (75) slide relative to each other, the input end of the water pump (73) extends into the inside of the water tank (71), and the outer surface of the water pipe (74) is provided with the adjusting assembly (78) for adjusting the position of the arc-shaped pipe (77); The adjusting assembly (78) comprises a threaded groove (781) arranged on the outer surface of the water pipe (74), the outer surface of the threaded groove (781) is threadedly connected with an internally threaded pipe (782), one side of the internally threaded pipe (782) is rotatably connected with a circular ring (783), and the outer surface of the circular ring (783) is hingedly connected with a hinge rod (784). The other end of the articulated rod (784) is articulated with the arc-shaped pipe (77), the articulated rod (784) is uniformly articulated on the outer surface of the circular ring (783), the internally threaded pipe (782) is screwed with the threaded groove (781), and the internally threaded pipe (782) is connected with the circular ring (783) through a bearing.

2. A stainless steel evaporator welding apparatus as defined in claim 1, wherein: One side of the arc-shaped clamping plate (65) is slid inside the slot (610), the inner side of the arc-shaped clamping plate (65) is provided with a non-slip pad, and the arc-shaped clamping plate (65) is in a circular arc shape.

3. A stainless steel evaporator welding apparatus as defined in claim 2, wherein: The impact assembly (68) comprises a second driving motor (681) fixed on one side of the mounting bracket (3) and two vibration rods (684) sliding in the mounting bracket (3), one side of the vibration rod (684) is fixedly connected with a rubber ball (686), two sides of the vibration rod (684) are fixedly connected with a transmission rod (682), the outer surface of the vibration rod (684) is sleeved with a first spring (683), the outer surface of the vibration rod (684) is fixedly connected with a driving rod (685), the output end of the second driving motor (681) is fixedly connected with a rotating shaft (688), and the outer surface of the rotating shaft (688) is fixedly connected with two triangular blocks (687).

4. A stainless steel evaporator welding apparatus as defined in claim 3, wherein: One side of the rotating shaft (688) penetrates the inside of the mounting bracket (3), the first spring (683) is fixed on both sides of the mounting bracket (3) and the transmission rod (682), the two triangular blocks (687) are fixed on the outer surface of the rotating shaft (688) about the center, the driving rod (685) and the inclined side of the triangular block (687) are slid, and the inside of the rotating shaft (688) is provided with a polishing assembly (69) for polishing the welding joint.

5. A stainless steel evaporator welding apparatus as defined in claim 4, wherein: The polishing assembly (69) comprises a receiving groove (694) formed in the rotating shaft (688), one side of the receiving groove (694) is fixedly connected with a second spring (693), one side of the second spring (693) is fixedly connected with a rectangular rod (691), and one side of the rectangular rod (691) is fixedly connected with a polishing sand wheel (692).

6. A stainless steel evaporator welding apparatus as defined in claim 5, wherein: The rectangular rod (691) slides in the receiving groove (694), and the polishing sand wheel (692) is located between the two rubber balls (686).

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