Welding machining device and method for stainless steel parts

Abstract

The invention discloses a welding machining device and method for stainless steel parts, and relates to the technical field of welding. The welding device comprises the bottom rotating disc face, the top rotating disc face, the embedded frame and the three-jaw chucks, the embedded frame and the three-jaw chucks are correspondingly arranged, high-frequency relative friction between stainless steel parts of the second three-jaw chuck and stainless steel parts of the first three-jaw chuck is achieved by shaking the supporting sliding rods and the reset springs, heat is generated, and welding is completed; a balance weight in the balance weight box and centrifugal force generated by rotation provide stable welding pressure, after welding is completed, air is guided to flow through a welding seam for rapid cooling through a negative pressure arc-shaped protruding block and an air guiding channel, a blocking plate is controlled by the centrifugal force and a reset tension spring, automatic switching of air flowing is achieved, the structural design of the device is balanced, and the welding efficiency is improved. And a plurality of parts can be welded simultaneously, so that the production efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of welding, in particular to a welding processing device and a processing method for stainless steel parts. Background Art

[0002] In the welding process of stainless steel parts, post-weld cooling is an important link to ensure welding quality and part performance. Traditional welding cooling methods are mainly divided into two categories: natural cooling and forced cooling, but both have their own limitations. Natural cooling is the simplest way, that is, after welding is completed, let the stainless steel parts cool down by themselves at room temperature. This method does not require additional equipment and energy input, but the cooling speed is slow and cannot meet the needs of high-efficiency production. The weld area that is in a high temperature state for a long time may cause coarse grains and affect the mechanical properties of the metal. There is also a common problem in traditional cooling methods, that is, the cooling process is independent of the welding process and lacks synchronization. The operator is required to manually start the cooling device after welding is completed, which increases the labor intensity and the risk of error. If the cooling is started too early or too late, it will affect the organizational structure of the weld and reduce the welding quality. Under the requirements of efficient production, how to achieve fast, uniform and automatic cooling after welding while ensuring welding quality has become a technical problem that needs to be solved urgently. The existing technology lacks a cooling mechanism that can be seamlessly connected with the welding process, which can not only improve the cooling efficiency, but also simplify the equipment structure, reduce energy consumption and operating costs. Summary of the invention

[0003] In order to overcome the defects of the above-mentioned prior art, the present invention provides the following technical solutions: a welding processing device for stainless steel parts, comprising a bottom rotating disk and a top rotating disk, the bottom rotating disk is provided with a plurality of bottom embedded frames, the top rotating disk is provided with a top embedded frame of the same number and corresponding in position to the bottom embedded frames; a movable buckle cover is movably installed in each top embedded frame, and a welding base is fixedly installed in each bottom embedded frame; a negative pressure arc-shaped protrusion is fixed on the movable buckle cover, and exhaust channels are provided on the negative pressure arc-shaped protrusion and the movable buckle cover, and a blocking plate is slidably provided between the two exhaust channels, and the blocking plate can block the connection between the two exhaust channels; an outward expansion bracket is fixed on the welding base, and a second three-jaw chuck is slidably installed on the outward expansion bracket through a plurality of shaking support slide bars, and a first three-jaw chuck bracket is also slidably installed on the welding base, and a first three-jaw chuck bracket is fixedly installed with a first three-jaw chuck, and the first three-jaw chuck bracket is fixedly installed with a first three-jaw chuck, and the first three-jaw chuck and the second three-jaw chuck are used to install stainless steel parts that need to be welded.

[0004] Preferably, all the rocking support slide bars are slidably matched with the outward expansion brackets, the second three-jaw chuck is fixedly mounted on the second three-jaw chuck bracket, the rocking support slide bars are fixedly matched with the second three-jaw chuck bracket, and a rocking return spring is also arranged around each rocking support slide bar, and both ends of the rocking return spring are fixedly matched with the second three-jaw chuck bracket and the outward expansion bracket.

[0005] Preferably, an air guide channel is also fixed on the welding base, and the air guide channel is located below the welding point of the two stainless steel parts. The two bottom ends of the air guide channel extend to below the welding base and the bottom rotating disk, and a rectangular hole is opened in the middle of the upper surface of the air guide channel, and adjustable exhaust baffles set for the vehicle are arranged on both sides of the rectangular hole. The two adjustable exhaust baffles slide and magnetically cooperate with the air guide channel to adjust the opening size of the rectangular hole opened on the air guide channel. The two bottom ends of the air guide channel are set as air inlets, and the gas is guided to the weld through the air guide channel.

[0006] Preferably, the outward expansion bracket is fixed with multiple first three-jaw chuck bracket sliding rods parallel to the upper surface of the welding base, and the first three-jaw chuck bracket is slidably matched with all the first three-jaw chuck bracket sliding rods; an extension frame is fixed on the first three-jaw chuck bracket, and two supporting sliding plates are fixed on the lower surface of the extension frame, and the welding base is provided with an extension frame guiding slide rail which is slidably equipped with the supporting sliding plate.

[0007] Preferably, a counterweight box is slidably mounted on the upper surface of the extension frame through a counterweight box sliding rod, and a counterweight object can be placed in the counterweight box. A protective cover plate is fixed on the counterweight box in an easy-to-remove manner to prevent the counterweight object from separating from the counterweight box.

[0008] Preferably, all the shaking support slide bars are also fixed on the driving frame, the driving frame is provided with a sliding vertical through hole, a driving sliding pin is slidably installed in the sliding vertical through hole, a driving return spring is arranged around the outer surface of the driving sliding pin, the top end of the driving return spring is fixed to the driving frame, and the bottom end of the driving return spring is fixed to the middle part of the outer surface of the driving sliding pin; a limiting protrusion support mounting ring is arranged below the bottom rotating disk surface, and a plurality of circular array limiting protrusions are arranged on the upper surface of the limiting protrusion support mounting ring, and the upper surface of the limiting protrusion is slidably matched with the bottom end of the driving sliding pin to drive the driving sliding pin to move horizontally and vertically, and the limiting protrusion support mounting ring is connected with all limiting protrusions. A sinking groove is provided at the position where the protrusion contacts, wherein the limiting protrusion is slidably matched with the inner wall of the sinking groove, a sinking electric cylinder is fixed at the bottom of the inner wall of the sinking groove, the end of the telescopic rod of the sinking electric cylinder is fixedly matched with the limiting protrusion, and sliding grooves are provided at the positions where the bottom rotating disk surface intersects with each top rotating disk surface, so that the top rotating disk surface can be horizontally and vertically displaced in the sliding groove; a limiting protrusion support mounting ring is fixed on the supporting disk, and an input gas flow inlet is provided on the supporting disk, a plurality of supporting legs are fixed on the lower surface of the supporting disk, and a driving motor is fixed at the center of the circle of the lower surface of the supporting disk, and the output shaft of the driving motor is fixed to the bottom rotating disk surface, the middle reinforcing partition rib and the top rotating disk surface.

[0009] Preferably, a plurality of intermediate reinforcing partition ribs are fixed between the opposite surfaces of the top rotating disk and the bottom rotating disk, and the intermediate reinforcing partition ribs are used to separate the space between two adjacent welding bases and the movable buckle covers to form a plurality of independent chambers; a circumferential sealing surface is fixedly sealed at the circumference of the bottom rotating disk and the top rotating disk.

[0010] Preferably, a sliding guide groove is provided on the movable buckle cover, wherein the blocking plate is slidably arranged in the sliding guide groove, and a guide slide rod is also suspended and fixed on the movable buckle cover, wherein the blocking plate and the guide slide rod are slidably fitted together, and a reset spring is arranged around the guide slide rod, and both ends of the reset spring are fixed to one end of the guide slide rod and the blocking plate, and an auxiliary lead block is fixed on one side of the blocking plate.

[0011] A welding processing method for stainless steel parts, step 1, open the movable buckle cover; step 2, fix two stainless steel parts to be welded on the first three-jaw chuck and the second three-jaw chuck respectively, and ensure that the weld position is located above the air guide channel; step 3, close the movable buckle cover to reset it to its original position; step 4, according to the welding requirements, add a counterweight of appropriate weight in the counterweight box to provide the required welding pressure; step 5, start the drive motor to drive the bottom rotating disk and the top rotating disk to rotate, and then drive all the parts and stainless steel parts installed thereon to rotate; step 6, ensure that stainless steel parts are installed on each of the first three-jaw chuck and the second three-jaw chuck to maintain the mass balance of the device and reduce the shaking during the rotation process; step 7, during the rotation process, the driving sliding pin interacts with the limiting protrusion to prompt the driving sliding pin to move horizontally and vertically; step 8, the horizontal movement of the driving sliding pin drives the second three-jaw chuck to shake horizontally and reciprocatingly through the shaking support slide bar and the shaking reset spring; step 9, the stainless steel on the second three-jaw chuck The parts generate high-frequency relative friction with the stainless steel parts on the first three-jaw chuck, and the welding is completed under the action of the extrusion force; step 10, during the welding process, the counterweight in the counterweight box and the centrifugal force generated by the rotation jointly provide a stable positive pressure to ensure the welding quality; step 11, after the welding is completed, the drive motor is stopped, and under the action of inertia, the speed of the rotating disk gradually decreases, and the sinking electric cylinder is started at the same time to control the drive sliding pin to no longer contact the limiting protrusion; step 12, when the centrifugal force on the blocking plate is reduced to the point where the reset tension spring cannot be pulled, the tension of the reset tension spring causes the blocking plate to be pulled out of the exhaust channel and the air flow channel is opened; step 13, using the pressure difference generated by the negative pressure arc-shaped protrusion, the air at the bottom is guided to the weld through the input gas inlet and the air guide channel to cool the welded stainless steel parts; step 14, the air is discharged through the exhaust channel to complete the cooling of the weld and the parts; step 15, open the movable buckle cover and remove the welded parts; step 16, if you need to continue welding, repeat steps 1-15 to achieve mass production.

[0012] Compared with the prior art, the present invention has the following beneficial effects: (1) The present invention uses mechanical vibration to achieve efficient welding. Through the cooperation of the swing support slide bar and the swing reset spring, the second three-jaw chuck drives the stainless steel part to swing back and forth at high frequency horizontally, generating high-frequency relative friction with the stainless steel part on the first three-jaw chuck; (2) The present invention provides a stable positive pressure during the welding process through the action of the counterweight box and centrifugal force. The counterweight in the counterweight box can be adjusted according to the welding requirements to ensure that the stainless steel part is subjected to uniform extrusion force in the rotating state. This design improves the welding quality, avoids welding defects caused by uneven pressure, and ensures the firmness of the weld; (3) After the welding of the present invention is completed, the pressure difference generated by the negative pressure arc convex block is used to allow the bottom air to flow to the weld through the input gas inlet and the air guide channel, thereby achieving rapid cooling of the weld and the stainless steel part; (4) The present invention uses a baffle plate controlled by centrifugal force and a reset tension spring to achieve automatic control of air flow. When rotating at high speed, the baffle plate is inserted between the exhaust channels to block the air flow and avoid interference with the welding process. After deceleration, the blocking plate is pulled out by the reset spring, air flow is restored, and cooling begins without active human intervention. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0014] Figure 2 It is a schematic diagram of the internal structure of the circumferential sealing surface of the present invention.

[0015] Figure 3 It is a schematic diagram of the structure of the exhaust channel of the present invention.

[0016] Figure 4 It is a structural schematic diagram of the baffle plate of the present invention.

[0017] Figure 5 It is a structural schematic diagram of the support plate of the present invention.

[0018] Figure 6 For the present invention Figure 5 Schematic diagram of the structure at point A in the middle.

[0019] Figure 7 It is a schematic diagram of the structure of the air guide channel of the present invention.

[0020] Figure 8 It is a structural schematic diagram of the sinking tank of the present invention.

[0021] In the figure: 101-movable buckle cover; 102-negative pressure arc convex block; 103-exhaust channel; 104-blocking plate; 105-auxiliary lead block; 106-guide slide rod; 107-sliding guide groove; 108-reset tension spring; 109-welding base; 110-support slide plate; 111-extension frame; 112-first three-jaw chuck bracket; 113-extension frame guide rail; 114-first three-jaw chuck bracket slide rod; 115-first three-jaw chuck; 116-outward expansion bracket; 117-sway support slide rod; 118-sway reset spring; 119-second three-jaw chuck bracket; 120-second three-jaw chuck; 121-air guide channel; 122-adjusting exhaust baffle; 123-counterweight box sliding rod; 124-counterweight box; 125-protective cover; 126-driving frame; 127-sliding vertical through hole; 128-driving sliding pin; 129-driving return spring; 130-limiting protrusion; 201-limiting protrusion support mounting ring; 202-support leg; 203-driving motor; 204-support disk; 205-bottom rotating disk surface; 206-middle reinforcing partition rib; 207-bottom embedded frame; 208-top rotating disk surface; 209-top embedded frame; 210-circumferential sealing surface; 211-input gas inlet; 212-sinking electric cylinder; 213-sinking groove. DETAILED DESCRIPTION

[0022] Combine the following Figure 1-Figure 8 , and further illustrate the technical solution of the present invention through specific implementation methods.

[0023] The present invention provides a welding processing device for stainless steel parts, comprising a bottom rotating disk 205 and a top rotating disk 208, wherein a plurality of bottom embedded frames 207 are provided on the bottom rotating disk 205, and a plurality of top embedded frames 209 are provided on the top rotating disk 208, which are the same number and have corresponding positions as the bottom embedded frames 207; a movable buckle cover 101 is movably installed in each top embedded frame 209, and a welding base 109 is fixedly installed in each bottom embedded frame 207; a negative pressure arc-shaped protrusion 102 is fixed on the movable buckle cover 101, and a negative pressure arc-shaped protrusion 102 and the movable buckle cover 101 are both provided with An exhaust channel 103 is provided, and a blocking plate 104 is slidably provided between the two exhaust channels 103, and the blocking plate 104 can block the connection between the two exhaust channels 103; an outward expansion bracket 116 is fixed on the welding base 109, and a second three-jaw chuck 120 is slidably installed on the outward expansion bracket 116 through a plurality of shaking support slide bars 117; a first three-jaw chuck bracket 112 is also slidably installed on the welding base 109, and a first three-jaw chuck 115 is fixedly installed on the first three-jaw chuck bracket 112, and the first three-jaw chuck 115 and the second three-jaw chuck 120 are used for installing stainless steel parts that need to be welded. All the rocking support slide bars 117 are slidably matched with the outward expansion bracket 116, the second three-jaw chuck 120 is fixedly mounted on the second three-jaw chuck bracket 119, the rocking support slide bars 117 are fixedly matched with the second three-jaw chuck bracket 119, and each rocking support slide bar 117 is also surrounded by a rocking return spring 118, and both ends of the rocking return spring 118 are fixedly matched with the second three-jaw chuck bracket 119 and the outward expansion bracket 116. An air guide channel 121 is also fixed on the welding base 109. The air guide channel 121 is located below the welding point of the two stainless steel parts. The two bottom ends of the air guide channel 121 extend to below the welding base 109 and the bottom rotating disk 205, and a rectangular hole is opened in the middle of the upper surface of the air guide channel 121. Adjustable exhaust baffles 122 set for the vehicle are set on both sides of the rectangular hole. The two adjustable exhaust baffles 122 slide and magnetically cooperate with the air guide channel 121 to adjust the opening size of the rectangular hole opened on the air guide channel 121. The two bottom ends of the air guide channel 121 are set as air inlets, and the gas is guided to the weld through the air guide channel 121. The outward expansion bracket 116 is fixed with multiple first three-jaw chuck bracket sliding rods 114 parallel to the upper surface of the welding base 109, and the first three-jaw chuck bracket 112 is slidably matched with all the first three-jaw chuck bracket sliding rods 114; an extension frame 111 is fixed on the first three-jaw chuck bracket 112, and two supporting sliding plates 110 are fixed on the lower surface of the extension frame 111, and an extension frame guiding slide rail 113 slidably arranged with the supporting sliding plate 110 is provided on the welding base 109.A counterweight box 124 is slidably mounted on the upper surface of the extension frame 111 through a counterweight box sliding rod 123. Counterweight objects can be placed in the counterweight box 124. A protective cover plate 125 is fixed on the counterweight box 124 in an easy-to-remove manner to prevent the counterweight objects from separating from the counterweight box 124.

[0024] All the shaking support slide bars 117 are also fixed on the driving frame 126. The driving frame 126 is provided with a sliding vertical through hole 127. A driving sliding pin 128 is slidably installed in the sliding vertical through hole 127. A driving return spring 129 is arranged around the outer surface of the driving sliding pin 128. The top end of the driving return spring 129 is fixed to the driving frame 126, and the bottom end of the driving return spring 129 is fixed to the middle part of the outer surface of the driving sliding pin 128; a limiting protrusion support mounting ring 201 is arranged below the bottom rotating disk 205, and a plurality of circular array limiting protrusions 130 are arranged on the upper surface of the limiting protrusion support mounting ring 201. The upper surface of the limiting protrusion 130 is slidably matched with the bottom end of the driving sliding pin 128, so as to drive the driving sliding pin 128 to move horizontally and vertically. The limiting protrusion support mounting ring 201 contacts all limiting protrusions 130. A sinking groove 213 is provided at each position, wherein the limiting protrusion 130 is slidably matched with the inner wall of the sinking groove 213, a sinking electric cylinder 212 is fixed at the bottom of the inner wall of the sinking groove 213, the telescopic rod end of the sinking electric cylinder 212 is fixedly matched with the limiting protrusion 130, and a sliding groove is provided at the position where the bottom rotating disk surface 205 intersects with each top rotating disk surface 208, so that the top rotating disk surface 208 can be horizontally and vertically displaced in the sliding groove; the limiting protrusion support mounting ring 201 is fixed on the supporting disk 204, and the supporting disk 204 is provided with an input gas inlet 211, a plurality of supporting legs 202 are fixed on the lower surface of the supporting disk 204, and a driving motor 203 is fixed at the center of the lower surface of the supporting disk 204, and the output shaft of the driving motor 203 is fixed to the bottom rotating disk surface 205, the middle reinforcing partition rib 206 and the top rotating disk surface 208. A plurality of intermediate reinforcing partition ribs 206 are fixed between the opposite surfaces of the top rotating disk 208 and the bottom rotating disk 205. The intermediate reinforcing partition ribs 206 are used to separate the space between two adjacent welding bases 109 and the movable buckle cover 101 to form a plurality of independent chambers. A circumferential sealing surface 210 is fixedly sealed at the circumference of the bottom rotating disk 205 and the top rotating disk 208. The movable buckle cover 101 is provided with a sliding guide groove 107, wherein the blocking plate 104 is slidably arranged in the sliding guide groove 107. A guide slide bar 106 is also fixed overhead on the movable buckle cover 101, wherein the blocking plate 104 and the guide slide bar 106 are slidably matched. A reset tension spring 108 is arranged around the guide slide bar 106. The two ends of the reset tension spring 108 are fixed to one end of the guide slide bar 106 and the blocking plate 104. An auxiliary lead block 105 is fixed to one side of the blocking plate 104.

[0025] The working principle of a welding processing device for stainless steel parts disclosed in the present invention is as follows: open the movable buckle cover 101, and then fix the two stainless steel parts to be welded on the corresponding first three-jaw chuck 115 and the second three-jaw chuck 120 respectively, so that the weld is located above the air guide channel 121. Then reset the movable buckle cover 101, and add a lead block of corresponding weight into the counterweight box 124 according to the welding requirements, which is mainly used to provide positive pressure during welding. Start the drive motor 203, and the output shaft of the drive motor 203 drives all parts on the bottom rotating disk 205 and the stainless steel parts to be welded (it is necessary to install stainless steel parts on each of the first three-jaw chuck 115 and the second three-jaw chuck 120 to balance and reduce shaking). During the rotation process, the driving sliding pin 128 will continuously contact and separate from different limiting protrusions 130. Under the restriction of the limiting protrusion 130, the driving sliding pin 128 will move in its own horizontal direction and axial direction (vertical direction), wherein the axial movement will be eliminated by the relative sliding between the driving sliding pin 128 and the sliding vertical through hole 127 (the driving reset spring 129 provides the reset power), wherein the horizontal movement will drive the shaking support slide bar 117 to move, and at the same time, the shaking reset spring 118 is continuously compressed and stretched, and the second three-jaw chuck 120 and its corresponding stainless steel parts are driven to shake horizontally and reciprocatingly through the second three-jaw chuck bracket 119. At this time, the stainless steel parts on the second three-jaw chuck 120 will have high-frequency relative friction with the corresponding stainless steel parts on the first three-jaw chuck 115. At the same time, because in the rotating state, the stainless steel parts on the first three-jaw chuck 115 will squeeze the stainless steel parts on the second three-jaw chuck 120 under the action of the lead block in the counterweight box 124 and the centrifugal force of itself, thereby providing extrusion force during welding. According to the material properties of the stainless steel parts, the first three-jaw chuck 115 and the first three-jaw chuck bracket 112 can be changed to a rotating fit and driven to rotate by an independent motor. At the same time, the shaking support slide bar 117 and the outward expansion bracket 116 are changed to a fixed mode (for example, a card block is filled between the driving frame 126 and the outward expansion bracket 116 to make the two of them stuck). At this time, the stainless steel parts on the first three-jaw chuck 115 will rotate, and will also have relative sliding friction with the stainless steel parts on the second three-jaw chuck 120, so that high temperature is generated between the two stainless steel parts and then they are melted and welded together.

[0026] After welding is completed, the driving motor 203 can be stopped, and the sinking electric cylinder 212 can be started at the same time to shrink the telescopic rod of the sinking electric cylinder 212, and the telescopic rod of the sinking electric cylinder 212 drives the limiting protrusion 130 to sink into the sinking groove 213. At this time, the driving sliding pin 128 is no longer in contact with the limiting protrusion 130, so the relative sliding between the swing support slide bar 117 and the outward expansion bracket 116 is stopped. Then, under the action of inertia, the bottom rotating disk 205 and the parts on the bottom rotating disk 205 will continue to rotate, and the speed at this time will be reduced. , the blocking plate 104 is pulled out from between the two exhaust passages 103 under the tension of the reset tension spring 108 (in the normal welding process, the driving motor 203 is at the maximum speed. At this time, the centrifugal force generated by the rotation of the blocking plate 104 and the auxiliary lead block 105 will pull the reset tension spring 108, so that the blocking plate 104 is inserted between the two exhaust passages 103, blocking the connection of the exhaust passages 103. When the driving motor 203 stops, the speed decreases due to inertia, and the centrifugal force exerted on the auxiliary lead block 105 and the blocking plate 104 cannot overcome the reset tension spring 108. The tension of the spring 108 is applied, and the blocking plate 104 is then pulled out of the two exhaust passages 103. For example, between 950 and 1000 revolutions, the reset spring 108 can be significantly deformed, and below 950 revolutions, the blocking plate 104 will be completely pulled out of the exhaust passage 103. Since the negative pressure arc-shaped protrusion 102 is still rotating, and the lower surface of the bottom rotating disk 205 is flat, and because the negative pressure arc-shaped protrusion 102 is convex, and the negative pressure arc-shaped protrusion 102 and the bottom rotating disk 205 have the same rotation speed, the negative pressure arc-shaped protrusion 102 has a flat surface. The air flow rate on the surface is greater than the air flow rate on the lower surface of the bottom rotating disk 205 (relative to still air). At this time, the pressure on the upper surface of the negative pressure arc-shaped protrusion 102 will be lower than the pressure on the lower surface of the bottom rotating disk 205. At this time, under the action of the pressure difference, the air below the bottom rotating disk 205 will flow to the weld through the input gas inlet 211 and the air guide channel 121, thereby cooling the weld and its stainless steel parts, and then discharged from the exhaust channel 103, so that the temperature of the stainless steel parts after welding can be quickly reduced, which is convenient for removal. When the blocking plate 104 is inserted into the exhaust channel 103, since the air flow in the middle is blocked, there is no air flow.

Claims

1. A welding processing device for stainless steel parts, characterized in that: It comprises a bottom rotating disk surface (205) and a top rotating disk surface (208), wherein a plurality of bottom embedded frames (207) are provided on the bottom rotating disk surface (205), and a plurality of top embedded frames (209) of the same number and corresponding positions as the bottom embedded frames (207) are provided on the top rotating disk surface (208); A movable buckle cover (101) is movably installed in each top embedded frame (209), and a welding base (109) is fixedly installed in each bottom embedded frame (207); a negative pressure arc-shaped protrusion (102) is fixed on the movable buckle cover (101), and an exhaust channel (103) is provided on the negative pressure arc-shaped protrusion (102) and the movable buckle cover (101); a blocking plate (104) is slidably provided between the two exhaust channels (103), and the blocking plate (104) can block the two exhaust channels (103) The welding base (109) is connected with an outward expansion bracket (116) fixed thereon, and a second three-jaw chuck (120) is slidably mounted on the outward expansion bracket (116) via a plurality of swing support slide bars (117); a first three-jaw chuck bracket (112) is also slidably mounted on the welding base (109), and a first three-jaw chuck (115) is fixedly mounted on the first three-jaw chuck bracket (112); the first three-jaw chuck (115) and the second three-jaw chuck (120) are used to mount stainless steel parts that need to be welded.

2. A welding processing device for stainless steel parts according to claim 1, characterized in that: All the sway support slide bars (117) are slidably matched with the outward expansion bracket (116); the second three-jaw chuck (120) is fixedly mounted on the second three-jaw chuck bracket (119); the sway support slide bars (117) are fixedly matched with the second three-jaw chuck bracket (119); and a sway return spring (118) is also arranged around each sway support slide bar (117); and both ends of the sway return spring (118) are fixedly matched with the second three-jaw chuck bracket (119) and the outward expansion bracket (116).

3. A welding processing device for stainless steel parts according to claim 2, characterized in that: An air guide channel (121) is also fixed on the welding base (109). The air guide channel (121) is located below the welding point of the two stainless steel parts. The two bottom ends of the air guide channel (121) extend to below the welding base (109) and the bottom rotating disk (205). A rectangular hole is provided in the middle of the upper surface of the air guide channel (121). Adjustable exhaust baffles (122) provided for the vehicle are provided on both sides of the rectangular hole. The two adjustable exhaust baffles (122) slide and are magnetically engaged with the air guide channel (121) to adjust the opening size of the rectangular hole provided on the air guide channel (121). The two bottom ends of the air guide channel (121) are provided as air inlets, and gas is guided to the welding seam through the air guide channel (121).

4. A welding processing device for stainless steel parts according to claim 3, characterized in that: The outward expansion bracket (116) is fixed with a plurality of first three-jaw chuck bracket sliding rods (114) parallel to the upper surface of the welding base (109); the first three-jaw chuck bracket (112) and all the first three-jaw chuck bracket sliding rods (114) are slidably matched; an extension bracket (111) is fixed to the first three-jaw chuck bracket (112); two supporting sliding plates (110) are fixed to the lower surface of the extension bracket (111); and an extension bracket guide rail (113) slidably arranged with the supporting sliding plate (110) is provided on the welding base (109).

5. A welding processing device for stainless steel parts according to claim 4, characterized in that: A counterweight box (124) is slidably mounted on the upper surface of the extension frame (111) via a counterweight box sliding rod (123). A counterweight object can be placed in the counterweight box (124). A protective cover plate (125) is fixed to the counterweight box (124) in a manner that is easy to disassemble, so as to prevent the counterweight object from being separated from the counterweight box (124).

6. A welding processing device for stainless steel parts according to claim 5, characterized in that: All the sway support slide bars (117) are also fixed on the driving frame (126). The driving frame (126) is provided with a sliding vertical through hole (127). A driving sliding pin (128) is slidably installed in the sliding vertical through hole (127). A driving return spring (129) is arranged around the outer surface of the driving sliding pin (128). The top end of the driving return spring (129) is fixed to the driving frame (126), and the bottom end of the driving return spring (129) is fixed to the middle of the outer surface of the driving sliding pin (128). A limiting protrusion support mounting ring (201) is disposed below the bottom rotating disk surface (205); a plurality of limiting protrusions (130) in a circular array are disposed on the upper surface of the limiting protrusion support mounting ring (201); the upper surface of the limiting protrusion (130) is slidably matched with the bottom end of the driving sliding pin (128) to drive the driving sliding pin (128) to move horizontally and vertically; and the contact positions of the limiting protrusion support mounting ring (201) and all the limiting protrusions (130) are provided with A sinking groove (213), wherein the limiting protrusion (130) is slidably matched with the inner wall of the sinking groove (213), a sinking electric cylinder (212) is fixed at the bottom of the inner wall of the sinking groove (213), the end of the telescopic rod of the sinking electric cylinder (212) is fixedly matched with the limiting protrusion (130), and a sliding groove is provided at a position on the bottom rotating disk (205) intersecting with each top rotating disk (208), so that the top rotating disk (208) can be displaced horizontally and vertically in the sliding groove; The limiting protrusion support mounting ring (201) is fixed on the support disk (204); an input gas inlet (211) is provided on the support disk (204); a plurality of support legs (202) are fixed on the lower surface of the support disk (204); a driving motor (203) is fixed at the center of the lower surface of the support disk (204); and an output shaft of the driving motor (203) is fixed to the bottom rotating disk surface (205), the middle reinforcing partition rib (206), and the top rotating disk surface (208).

7. A welding processing device for stainless steel parts according to claim 6, characterized in that: A plurality of intermediate reinforcing partition ribs (206) are fixed between the opposing surfaces of the top rotating disk surface (208) and the bottom rotating disk surface (205), and the intermediate reinforcing partition ribs (206) are used to separate the space between two adjacent welding bases (109) and the movable buckle cover (101) to form a plurality of independent chambers; a circumferential sealing surface (210) is fixedly sealed at the circumference of the bottom rotating disk surface (205) and the top rotating disk surface (208).

8. The welding processing device for stainless steel parts according to claim 7, characterized in that: The movable buckle cover (101) is provided with a sliding guide groove (107), wherein the blocking plate (104) is slidably arranged in the sliding guide groove (107), and a guide slide bar (106) is also suspended and fixed on the movable buckle cover (101), wherein the blocking plate (104) and the guide slide bar (106) are slidably matched, and a reset spring (108) is arranged around the guide slide bar (106), and both ends of the reset spring (108) are fixed to one end of the guide slide bar (106) and the blocking plate (104), and an auxiliary lead block (105) is fixed to one side of the blocking plate (104).

9. A processing method using a welding processing device for stainless steel parts according to claims 1 to 8, characterized in that: The following steps are involved: Step 1, open the movable buckle cover (101); Step 2, fix the two stainless steel parts to be welded on the first three-jaw chuck (115) and the second three-jaw chuck (120) respectively, and ensure that the weld is located above the air guide channel (121); Step 3: Close the movable buckle cover (101) to return it to its original position; Step 4: according to welding requirements, add a weight of appropriate weight into the weight box (124) to provide the required welding pressure; Step 5, starting the driving motor (203), driving the bottom rotating disk (205) and the top rotating disk (208) to rotate, thereby driving all the components and stainless steel parts installed thereon to rotate; Step 6: Ensure that stainless steel parts are installed on each of the first three-jaw chuck (115) and the second three-jaw chuck (120) to maintain the mass balance of the device and reduce shaking during the rotation process; Step 7: During the rotation process, the driving sliding pin (128) interacts with the limiting protrusion (130), causing the driving sliding pin (128) to move horizontally and vertically; Step 8, driving the sliding pin (128) to move horizontally through the shaking support slide bar (117) and the shaking return spring (118), thereby driving the second three-jaw chuck (120) to perform horizontal reciprocating shaking; Step 9: The stainless steel parts on the second three-jaw chuck (120) and the stainless steel parts on the first three-jaw chuck (115) generate high-frequency relative friction, and welding is completed under the action of the extrusion force; Step 10: During the welding process, the weight in the weight box (124) and the centrifugal force generated by the rotation jointly provide a stable positive pressure to ensure the welding quality; Step 11: After welding is completed, the driving motor (203) is stopped. Under the action of inertia, the rotation speed of the rotating disk gradually decreases. At the same time, the sinking electric cylinder (212) is started to control the driving sliding pin (128) so that it no longer contacts the limiting protrusion (130); Step 12: When the centrifugal force on the blocking plate (104) is reduced to a level that makes it impossible to pull the return spring (108), the pulling force of the return spring (108) causes the blocking plate (104) to be pulled away from the exhaust passage (103), thereby opening the air flow passage; Step 13: utilizing the pressure difference generated by the negative pressure arc-shaped convex block (102), the air at the bottom is guided to the weld through the input gas inlet (211) and the air guide channel (121), so as to cool the welded stainless steel parts; Step 14: the air is discharged through the exhaust channel (103) to cool the weld and parts; Step 15: Open the movable buckle cover (101) and remove the welded parts; Step 16: If you need to continue welding, repeat steps 1 to 15 to achieve mass production.

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