A welding device based on horizontal centrifuge machining

Abstract

The application discloses a kind of welding equipment based on horizontal centrifuge processing, it is related to welding technical field, including bed and sliding table, the upper end of bed is oppositely provided with main shaft box and tailstock, the output end of main shaft box is provided with chuck one and fixed joint one, compared with the current welding equipment for horizontal centrifuge processing of the present application setting has cooling assembly and screw module, by the cooperation of cooling assembly and screw module, the real-time following type local cooling of welded part can be realized, compared with the traditional large-area overall cooling mode, not only the circulating amount of coolant is greatly reduced, but also welding residual stress can be effectively limited in local area, while avoiding the temperature of unwelded area being lower due to contact with cooling medium, affecting the subsequent welding work, in addition, the detection block with pressure detection element is arranged at the end of welding gun, which can effectively prevent the occurrence of welding defects such as welding deviation or welding through.

Description

Technical Field

[0001] This invention relates to the field of welding technology, specifically a welding device based on horizontal centrifuge processing. Background Technology

[0002] In the manufacturing process of horizontal centrifuges, the welding between the spiral blades and the mandrel body is one of the key processes that determines the centrifuge's separation efficiency and operational stability. Currently, the industry generally uses welding technologies such as arc welding or laser welding to weld the spiral blades onto the mandrel body for welding such long-shaft spiral workpieces.

[0003] To ensure strong welds and high welding efficiency, existing welding equipment for horizontal centrifuges typically incorporates cooling structures in the welding area. For example, patent CN211219251U, "A Horizontal Centrifuge Spiral Welding Device," discloses an automated welding device that uses a heat-conducting device to cool the inner wall of the welding point, preventing excessive temperature drops at the spiral mandrel welding area. However, in actual welding operations, this cooling technique, which cools the entire mandrel as a whole, not only wastes a significant amount of cooling medium but also easily leads to localized low temperatures due to premature contact between the welding area and the cooling medium, thus affecting the fusion quality of subsequent welds. Summary of the Invention

[0004] The technical problem to be solved by the present invention is how to ensure that the cooling structure can accurately follow the welding trajectory for local cooling. To this end, a welding device based on a horizontal centrifuge is provided.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a welding device for processing in a horizontal centrifuge, comprising a bed and a slide table. A spindle box and a tailstock are arranged opposite each other at the upper two ends of the bed. A chuck one and a fixed joint one are arranged at the output end of the spindle box. A chuck two and a fixed joint two are arranged at the end of the tailstock near the spindle box. The chuck two is slidably connected to the tailstock. The chuck one and the chuck two are coaxially arranged. The fixed joint one is clamped by the chuck one, and the fixed joint two is clamped by the chuck two. A lead screw module is arranged between the fixed joint one and the fixed joint two. A drive mechanism is arranged inside the tailstock. A cooling component is arranged at the working end of the lead screw module. The cooling component is connected to an external coolant delivery system through a hose. The end of the lead screw module is connected to the drive mechanism. A traveling mechanism is arranged on the slide table. A welding torch is arranged at the working end of the traveling mechanism.

[0006] During operation, the horizontal centrifuge mandrel to be welded, equipped with helical blades, is first placed between fixed joint one and fixed joint two. The mandrel is suspended and clamped in place by fixed joint one and fixed joint two. Then, the drive motor inside the spindle box is started, causing chuck one and fixed joint one to drive the mandrel to rotate uniformly around its own axis at a set speed (chuck two and fixed joint two rotate synchronously). As the mandrel continues to rotate, the traveling mechanism drives the welding torch to advance uniformly along the mandrel axis. Combined with the helical welding trajectory formed by the circumferential rotation of the mandrel, the helical blades are gradually welded to the mandrel body. Compared to current welding equipment for horizontal centrifuge processing, this invention includes a cooling component and a lead screw module, ensuring efficient welding throughout the entire welding process. The internal drive mechanism synchronously drives the lead screw module to rotate, which in turn drives the cooling component to move synchronously along the axis following the welding area. During this movement, an external coolant delivery system continuously circulates and delivers cooling medium to the cooling component. This allows for real-time, localized cooling of the welded area. Compared to traditional welding devices that typically require large-area, long-term cooling of the entire mandrel, this invention, through the cooperation of the lead screw module and the cooling component, cools only the welded area. This significantly reduces the amount of coolant used and effectively confines residual welding stress to a localized area. It also prevents unwelded areas from becoming too cold due to contact with the cooling medium, which could affect subsequent welding work. Furthermore, the drive mechanism includes a servo motor, the output shaft of which is connected to the end of the lead screw module via a coupling. A speed measuring element is provided at the end of the lead screw module away from the servo motor. When the servo motor drives the lead screw module to rotate, the actual stroke of the working end of the lead screw module is fed back in real time through the speed measuring element to ensure that the movement trajectory of the cooling ring and the forward movement of the welding torch are always synchronized.

[0007] Furthermore, the drive mechanism includes a sliding sleeve and a transmission assembly. The sliding sleeve is located inside the tailstock at one end near the second chuck. An annular limiting block is provided on the sliding sleeve to restrict the axial movement of the sliding sleeve. One end of the sliding sleeve is connected to the second chuck, and the other end of the sliding sleeve is connected to the lead screw module through the transmission assembly. Both fixed joint one and fixed joint two are hollow structures. Fixed joint one is provided with a fixed column, which is fixedly connected to the spindle box. The end of the lead screw module away from the transmission assembly is located inside the fixed column.

[0008] Furthermore, the transmission assembly includes gear one, gear column and gear two. Gear one is mounted on the sliding sleeve, gear two is mounted at the end of the lead screw module, one end of the gear column meshes with gear one, and the other end of the gear column meshes with gear two.

[0009] When the drive motor inside the spindle box starts, it drives chuck one and fixed joint one to rotate, thereby driving the spindle to rotate. Since one end of the sliding sleeve is connected to chuck two, chuck two will drive the sliding sleeve to rotate around its own axis as it follows the spindle. At this time, the power can be transmitted to gear one through the sliding sleeve. Gear one drives the gear column that meshes with it to rotate. The gear column drives gear two connected to the end of the lead screw module to rotate. The lead screw module starts to work under the drive of gear two. The lead screw module drives the cooling component to move along the axis of the spindle, thereby ensuring that the cooling component can achieve localized cooling of the welded parts. Through the above technical solution, this invention utilizes the drive motor inside the spindle box used to drive the spindle to rotate, extracting the power of the spindle rotation and converting it into the rotational power of the lead screw module. This effectively ensures that the moving speed of the cooling component is accurately synchronized with the rotational speed of the spindle and the moving speed of the welding torch.

[0010] Furthermore, the cooling assembly includes a cooling ring with an inlet and an outlet. Both the inlet and outlet of the cooling ring are connected to an external coolant delivery system via hoses. The cooling ring contains a first chamber and a second chamber. The first chamber is located on the outer ring of the second chamber. One end of the first chamber is connected to the inlet of the cooling ring via an inlet channel, and the other end of the first chamber is connected to the second chamber. The second chamber is connected to the outlet of the cooling ring via an outlet channel. After the external coolant delivery system is started, the low-temperature coolant enters the inlet channel through the hose via the inlet, then rotates once around the first chamber before entering the second chamber, and finally flows back to the external coolant delivery system through the outlet channel and the outlet. Compared with the cooling structure used in traditional welding devices, in this invention, the coolant circulates circumferentially within the first chamber during operation, effectively preventing the coolant from rapidly passing through the cooling space and ensuring sufficient heat exchange between the coolant and the welding area.

[0011] Furthermore, the fixed connector two is internally equipped with an adjustment component, which includes an air pump and several mounting slots. Each mounting slot is equipped with an adjustment block, which is movably installed in the mounting slot by a compression spring. The ends of the several mounting slots near the axis of the fixed connector two are connected through an air intake channel. The working end of the air pump is connected to the air intake channel. The structure and internal configuration of the fixed connector two are exactly the same as those of the fixed connector one.

[0012] When the mandrel to be welded needs to be fixed to fixed joint one and fixed joint two, the operator can turn on the air pump to deliver compressed air into the air intake channel. After the compressed air enters several mounting slots, under the action of air pressure, several adjusting blocks will overcome the elasticity of the compression spring and move synchronously towards the inner wall of the mandrel. The adjusting blocks apply radial support force to the inner wall of the mandrel, thereby ensuring that the mandrel can be stably connected to fixed joint one and fixed joint two. When the welding work is finished and the mandrel needs to be removed, simply turn off the air pump, and the compression spring will automatically spring back the adjusting blocks to their original positions. At this time, the mandrel will be detached from fixed joint one and fixed joint two. Compared with directly clamping the two ends of the mandrel by chuck one and chuck two, the present invention, through the above technical solution, allows the outer surface of the mandrel to be completely unobstructed. When the welding torch moves, it can work all the way to the end of the mandrel, effectively eliminating the welding blind spot caused by the clamping mechanism.

[0013] Furthermore, the ends of several mounting slots away from the two axes of the fixed joint are connected through an exhaust channel. The adjustment assembly also includes an adjustment valve, one end of which is connected to the exhaust channel, the other end of which is connected to the intake channel, and the last end of which is connected to the working end of the air pump. The adjustment block is provided with a hollow groove inside, and a through hole is provided on the side end of the hollow groove.

[0014] Furthermore, the end of the adjusting block away from the axis of the fixed joint is made of rubber so that the adjusting block can fit tightly against the inner wall of the mandrel with different diameters.

[0015] The air pump has a two-way adjustment function of positive pressure inflation and negative pressure suction. At the same time, the connection status of the working end of the air pump with the exhaust channel and the intake channel is controlled by the regulating valve. When it is necessary to control the movement of several adjusting blocks, the intake channel is connected to the working end of the air pump through the regulating valve. After the several adjusting blocks move to fit the inner wall of the mandrel under the action of air pressure and complete the radial support positioning of the mandrel, the exhaust channel is connected to the working end of the air pump through the regulating valve (the intake channel is in a closed state). At this time, the air pump switches to negative pressure suction mode. The air pump removes the gas from the hollow grooves inside the several adjusting blocks, so that a negative pressure adsorption effect is formed between the adjusting blocks and the inner wall of the mandrel. Through the above technical solution, the mandrel is doubly positioned to avoid the positional displacement between the mandrel and fixed joint one or fixed joint two during the welding process.

[0016] Furthermore, a detection block is installed on the outside of the working end of the welding torch, and a pressure detection element is installed on the detection block. During the rotation of the mandrel and the forward movement of the welding torch, the pressure detection element is continuously in contact with the surface of the spiral blade. When the forward speed of the welding torch matches the rotation of the mandrel, the pressure on the pressure detection element remains within a stable preset threshold range. If the rotation speed of the mandrel and the forward speed of the welding torch do not match due to abnormalities in the control system or transmission system, the pressure detection element will be excessively squeezed or separated from the side wall of the spiral blade. At this time, the pressure data received by the pressure detection element will exceed the preset threshold. By monitoring the pressure data received by the pressure detection element, the operator can know in real time whether the forward speed of the welding torch matches the rotation of the mandrel, thus preventing risks such as welding deviation or weld burn-through.

[0017] Furthermore, an angle adjustment module is installed between the welding torch and the traveling mechanism. The tailstock is slidably mounted on the bed, and a self-locking component is installed on the side of the tailstock. Before welding begins, the operator can adjust the distance between the tailstock and the spindle box according to the length of the mandrel, and then fix the tailstock to the bed through the self-locking component. Finally, according to the model of the spiral blade, the deflection angle of the welding torch is adjusted through the angle adjustment module so that the working end of the welding torch is precisely aligned with the part to be welded.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: Compared with the current horizontal centrifuge welding equipment, the present invention is equipped with a cooling component and a lead screw module. Through the cooperation of the cooling component and the lead screw module, real-time follow-up local cooling and temperature reduction of the welded parts can be achieved. Compared with the traditional large-area overall cooling method, it not only significantly reduces the circulation volume of coolant, but also effectively confines the welding residual stress to a local area. At the same time, it avoids the unwelded area from having a low temperature due to contact with the cooling medium, which would affect subsequent welding work. In addition, compared with the cooling structure used in traditional welding devices, the cooling component in the present invention can improve the flow path of the coolant, effectively preventing the coolant from passing through the cooling space quickly, and ensuring that the coolant and the welding area can be cooled. Sufficient heat exchange occurs. Furthermore, this invention features a detection block with a pressure detection element at the end of the welding torch. During welding, the pressure detection element on the detection block is in continuous contact with the surface of the spiral blades, providing real-time feedback on the matching status between the welding torch's forward speed and the mandrel's rotational speed. When the two lose synchronization due to abnormalities in the control or transmission system, the pressure data will exceed a preset threshold and issue a timely warning, thereby effectively preventing welding defects such as weld misalignment or weld burn-through. Finally, the fixed joints one and two in this invention not only apply radial support force to the inner wall of the mandrel but also apply adsorption force to the inner wall of the mandrel, effectively preventing the mandrel from shifting position relative to fixed joints one and two during rotational welding, thus ensuring the accuracy of the welding trajectory. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram showing the positions of the cooling assembly and the lead screw module of the present invention; Figure 3 This is a schematic diagram of the drive mechanism structure according to Embodiment 2 of the present invention; Figure 4 This is a schematic diagram of the adjustment component structure of the present invention; Figure 5 This is a schematic diagram showing the positions of the air pump and regulating valve of the present invention; Figure 6 This is a schematic diagram of the cooling component structure of the present invention; Figure 7 This is a schematic diagram of the flow path of the coolant within the cooling assembly according to the present invention; Figure 8 This is a schematic diagram showing the location of the detection block in this invention.

[0020] In the diagram: 1. Bed; 2. Spindle box; 21. Chuck 1; 22. Fixed column; 3. Fixed joint 1; 4. Fixed joint 2; 41. Mounting slot; 42. Adjusting block; 43. Exhaust channel; 44. Intake channel; 45. Adjusting valve; 46. Air pump; 5. Tailstock; 51. Chuck 2; 52. Sliding sleeve; 521. Gear 1; 53. Gear column; 6. Slide table; 61. Traveling mechanism; 62. Welding torch; 621. Detection block; 7. Lead screw module; 71. Gear 2; 8. Cooling ring; 81. Hose; 82. Chamber 1; 83. Liquid inlet channel; 84. Liquid outlet channel; 85. Chamber 2. Detailed Implementation

[0021] Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Example 1: As Figures 1-8As shown, the present invention provides a technical solution: a welding device for processing in a horizontal centrifuge, comprising a bed 1 and a slide table 6. A spindle box 2 and a tailstock 5 are arranged opposite each other at the upper two ends of the bed 1. A chuck 21 and a fixed connector 3 are provided at the output end of the spindle box 2. A chuck 51 and a fixed connector 4 are provided at the end of the tailstock 5 near the spindle box 2. The chuck 51 is slidably connected to the tailstock 5. The chuck 21 and the chuck 51 are coaxially arranged. The fixed connector 3 is clamped by the chuck 21, and the fixed connector 4 is clamped by the chuck 51. A lead screw module 7 is provided between the fixed connector 3 and the fixed connector 4. A drive mechanism is provided inside the tailstock 5. A cooling component is provided at the working end of the lead screw module 7. The cooling component is connected to an external coolant delivery system through a hose 81. The end of the lead screw module 7 is connected to the drive mechanism. A traveling mechanism 61 is provided on the slide table 6. A welding torch 62 is provided at the working end of the traveling mechanism 61.

[0023] During operation, the horizontal centrifuge mandrel to be welded, equipped with helical blades, is first placed between fixed joint 3 and fixed joint 4. The mandrel is suspended and clamped in place by fixed joint 3 and fixed joint 4. Then, the drive motor inside the spindle box 2 is started, causing the chuck 21 and fixed joint 3 to drive the mandrel to rotate uniformly around its own axis at a set speed (chuck 51 and fixed joint 4 rotate synchronously). During the continuous rotation of the mandrel, the traveling mechanism 61 drives the welding torch 62 to advance uniformly along the mandrel axis. Combined with the helical welding trajectory formed by the circumferential rotation of the mandrel, the helical blades are gradually welded to the mandrel body. Compared to current welding equipment for horizontal centrifuge processing, this invention includes a cooling component and a lead screw module 7, which improves the welding process. During the welding process, the drive mechanism inside the tailstock 5 synchronously drives the lead screw module 7 to rotate, which in turn drives the cooling component to move synchronously along the axis following the welding part. During the movement, the external coolant delivery system continuously circulates and delivers cooling medium to the cooling component. The cooling component achieves real-time localized cooling of the welded part. Compared with traditional welding devices that usually require large-area and long-term cooling of the entire mandrel, this invention uses the cooperation of the lead screw module 7 and the cooling component to cool only the welded area. This not only greatly reduces the amount of coolant used for circulation, but also effectively limits the welding residual stress to a local area. At the same time, it avoids the unwelded area from having a low temperature due to contact with the cooling medium, which would affect subsequent welding work.

[0024] like Figures 1-2 As shown, the drive mechanism includes a servo motor. The output shaft of the servo motor is connected to the end of the lead screw module 7 via a coupling. A speed measuring element is provided at the end of the lead screw module 7 away from the servo motor. When the servo motor drives the lead screw module 7 to rotate, the actual stroke of the working end of the lead screw module 7 is fed back in real time through the speed measuring element to ensure that the movement trajectory of the cooling ring 8 and the forward movement of the welding torch 62 are always synchronized.

[0025] like Figures 6-7 As shown, the cooling assembly includes a cooling ring 8, which has an inlet and an outlet. Both the inlet and outlet of the cooling ring 8 are connected to an external coolant delivery system via hoses 81. The cooling ring 8 contains a first chamber 82 and a second chamber 85. The first chamber 82 is located around the outer edge of the second chamber 85. One end of the first chamber 82 is connected to the inlet of the cooling ring 8 via a liquid inlet channel 83, and the other end of the first chamber 82 is connected to the second chamber 85. The second chamber 85 is connected to the outlet of the cooling ring 8 via a liquid outlet channel 84. After the external coolant delivery system is started, the low-temperature coolant enters the inlet channel 83 through the inlet end of the hose 81, then rotates once along the first chamber 82 before entering the second chamber 85, and finally flows back to the external coolant delivery system through the outlet channel 84 and the outlet end. Compared with the cooling structure used in traditional welding devices, in this invention, the coolant circulates in the first chamber 82 during operation, which effectively avoids the coolant passing through the cooling space quickly and ensures that the coolant and the welding area can have sufficient heat exchange.

[0026] like Figure 8 As shown, a detection block 621 is provided on the outside of the working end of the welding torch 62. A pressure detection element is provided on the detection block 621. During the rotation of the mandrel and the forward movement of the welding torch 62, the pressure detection element is continuously in contact with the surface of the spiral blade. When the forward speed of the welding torch 62 matches the rotation of the mandrel, the pressure received by the pressure detection element remains within a stable preset threshold range. If the rotation speed of the mandrel does not match the forward speed of the welding torch 62 due to abnormality of the control system or transmission system, the pressure detection element will be excessively squeezed or separated from the side wall of the spiral blade. At this time, the pressure data received by the pressure detection element will exceed the preset threshold. By monitoring the pressure data received by the pressure detection element, the operator can know in real time whether the forward speed of the welding torch 62 matches the rotation of the mandrel, thus preventing risks such as welding deviation or weld burn-through.

[0027] like Figure 1 As shown, an angle adjustment module is provided between the welding torch 62 and the traveling mechanism 61. The tailstock 5 is slidably mounted on the bed 1. A self-locking component is provided on the side of the tailstock 5. Before the welding work begins, the operator can adjust the distance between the tailstock 5 and the spindle box 2 according to the length of the mandrel. Then, the tailstock 5 is fixed to the bed 1 by the self-locking component. Finally, the deflection angle of the welding torch 62 is adjusted by the angle adjustment module according to the model of the spiral blade, so that the working end of the welding torch 62 is accurately aligned with the part to be welded.

[0028] like Figure 3As shown, in Embodiment 2 of the present invention, a driving mechanism different from that in Embodiment 1 is provided. The difference lies in that the working principle of the driving mechanism is changed in this embodiment. The driving mechanism includes a sliding sleeve 52 and a transmission assembly. The sliding sleeve 52 is disposed inside the tailstock 5 at one end near the chuck 51. An annular limiting block is provided on the sliding sleeve 52 to restrict the axial movement of the sliding sleeve 52. One end of the sliding sleeve 52 is connected to the chuck 51, and the other end of the sliding sleeve 52 is connected to the lead screw module 7 through the transmission assembly. Fixed joint 3 and fixed joint 4 are both hollow structures. Fixed joint 3 is provided with a fixed post 22, which is fixedly connected to the spindle box 2. The end of the lead screw module 7 away from the transmission assembly is disposed inside the fixed post 22.

[0029] like Figure 3 As shown, the transmission assembly includes a first gear 521, a gear post 53, and a second gear 71. The first gear 521 is mounted on the sliding sleeve 52, and the second gear 71 is mounted at the end of the lead screw module 7. One end of the gear post 53 meshes with the first gear 521, and the other end of the gear post 53 meshes with the second gear 71.

[0030] In this embodiment, when the drive motor in the spindle box 2 starts and drives the chuck 21 and the fixed joint 3 to rotate, thus driving the spindle to rotate, since one end of the sliding sleeve 52 is connected to the chuck 51, the chuck 51 will drive the sliding sleeve 52 to rotate around its own axis as it rotates with the spindle. At this time, the sliding sleeve 52 can transmit power to the gear 521, which drives the gear 53 meshing with it to rotate. The gear 521 then drives the gear 71 connected to the end of the lead screw module 7 to rotate, and the lead screw module 7 starts to work under the drive of the gear 71. The cooling component is driven to move along the axis of the mandrel by the lead screw module 7, thereby ensuring that the cooling component can achieve localized cooling of the welded parts. Compared with the drive mechanism in Embodiment 1, this embodiment utilizes the drive motor inside the spindle box 2 to drive the rotation of the mandrel, and extracts the power of the mandrel rotation and converts it into the rotational power of the lead screw module 7. This effectively ensures that the moving speed of the cooling component is accurately synchronized with the rotational speed of the mandrel and the moving speed of the welding torch 62, avoiding the situation in Embodiment 1 where the moving speed of the cooling component does not meet the requirements due to the change in the rotational speed of the servo motor.

[0031] like Figure 2 , Figures 4-5As shown, in Embodiment 3 of the present invention, a fixed connector 3 and a fixed connector 4, which are different from those in Embodiment 1, are provided. The difference is that this embodiment changes the technical effect of the fixed connector 3 and the fixed connector 4. The fixed connector 4 is provided with an adjustment component, which includes an air pump 46 and several mounting slots 41. Each mounting slot 41 is provided with an adjustment block 42. The adjustment block 42 is movably installed in the mounting slot 41 by a compression spring. The ends of the several mounting slots 41 near the axis of the fixed connector 4 are connected by an air intake channel 44. The working end of the air pump 46 is connected to the air intake channel 44. The structure and internal configuration of the fixed connector 4 are exactly the same as those of the fixed connector 3.

[0032] In this embodiment, when it is necessary to fix the mandrel to be welded onto the first fixed joint 3 and the second fixed joint 4, the operator can turn on the air pump 46 to deliver compressed air into the air inlet channel 44. When the compressed air enters the mounting slots 41, under the action of air pressure, the adjusting blocks 42 will overcome the elastic force of the compression springs and move synchronously towards the inner wall of the mandrel. The adjusting blocks 42 apply radial support force to the inner wall of the mandrel, thereby ensuring that the mandrel can be stably connected to the first fixed joint 3 and the second fixed joint 4. When the welding work is completed, it is necessary to... To remove the mandrel, simply turn off the air pump 46, and the compression spring will automatically spring back the adjusting block 42 to its original position. At this time, the mandrel will detach from the fixed connector 3 and the fixed connector 4. Compared to directly clamping both ends of the mandrel through the chuck 21 and the chuck 51, the outer surface of the mandrel in this embodiment is completely unobstructed. When the welding torch 62 moves, it can work all the way to the end of the mandrel, effectively eliminating the welding blind spot caused by the clamping mechanism. Finally, in this embodiment, the fixed connector 3 and the fixed connector 4 can suspend and fix mandrels of different diameters, greatly enhancing the versatility of the equipment.

[0033] like Figures 4-5 As shown, one end of several mounting slots 41 away from the axis of the fixed joint 4 is connected through an exhaust channel 43. The adjustment assembly also includes an adjustment valve 45. One end of the adjustment valve 45 is connected to the exhaust channel 43, the other end of the adjustment valve 45 is connected to the air intake channel 44, and the last end of the adjustment valve 45 is connected to the working end of the air pump 46. A hollow groove is provided inside the adjustment block 42, and a through hole is provided on the side end of the hollow groove.

[0034] like Figure 4 As shown, the end of the adjusting block 42 away from the axis of the fixed joint 4 is made of rubber so that the adjusting block 42 can fit tightly against the inner wall of the mandrel with different diameters.

[0035] In this embodiment, the air pump 46 has a bidirectional adjustment function of positive pressure inflation and negative pressure suction. At the same time, the connection state between the working end of the air pump 46 and the exhaust channel 43 and the intake channel 44 is controlled by the regulating valve 45. When it is necessary to control the movement of several adjusting blocks 42, the intake channel 44 is connected to the working end of the air pump 46 by the regulating valve 45. After the several adjusting blocks 42 move to fit the inner wall of the mandrel under the action of air pressure and complete the radial support positioning of the mandrel, the exhaust channel 43 is connected to the working end of the air pump 46 by the regulating valve 45 (the intake channel 44 is in a closed state). At this time, the air pump 46 switches to the negative pressure suction mode. The air pump 46 draws away the gas in the hollow grooves inside the several adjusting blocks 42, so that a negative pressure adsorption effect is formed between the adjusting blocks 42 and the inner wall of the mandrel. The above technical solution provides dual positioning of the mandrel and avoids the positional displacement between the mandrel and the fixed joint 3 or the fixed joint 4 during the welding process.

[0036] The working principle of this invention is as follows: Before welding begins, the operator adjusts the distance between the tailstock 5 and the spindle box 2 according to the length of the mandrel. Then, the tailstock 5 is fixed to the bed 1 using a self-locking assembly. Next, the deflection angle of the welding torch 62 is adjusted using an angle adjustment module according to the model of the spiral blades, so that the working end of the welding torch 62 is precisely aligned with the part to be welded. Finally, the horizontal centrifuge mandrel to be welded, fitted with spiral blades, is placed between fixed joint 3 and fixed joint 4. The mandrel is suspended and clamped in place by fixed joint 3 and fixed joint 4. During welding, the operator can start the drive motor inside the spindle box 2, causing the chuck 21 and fixed joint 3 to engage. The mandrel rotates at a set speed around its own axis. At this time, the chuck 51 and the fixed joint 4 will rotate synchronously. During the continuous rotation of the mandrel, the traveling mechanism 61 drives the welding torch 62 to move forward at a constant speed along the axis of the mandrel. In conjunction with the spiral welding trajectory formed by the circumferential rotation of the mandrel, the spiral blades are gradually welded to the main body of the mandrel. During the entire welding process, the drive mechanism inside the tailstock 5 synchronously drives the lead screw module 7 to rotate. Then, the lead screw module 7 drives the cooling component to move synchronously along the axis along the welding part. During the movement, the external coolant delivery system continuously circulates and delivers cooling medium to the cooling component. The cooling component enables real-time cooling of the welded part.

[0037] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A welding device for processing in a horizontal centrifuge, comprising a bed (1) and a slide (6), characterized in that: The upper two ends of the bed (1) are provided with a spindle box (2) and a tailstock (5). The output end of the spindle box (2) is provided with a chuck (21) and a fixed connector (3). The end of the tailstock (5) near the spindle box (2) is provided with a chuck (51) and a fixed connector (4). The suspension clamping and positioning of the spindle is achieved by the cooperation of the fixed connector (3) and the fixed connector (4). A lead screw module (7) is provided between the fixed connector (3) and the fixed connector (4). A drive mechanism is provided inside the tailstock (5). A cooling component is provided at the working end of the lead screw module (7). The cooling component is connected to an external coolant delivery system through a hose (81). The end of the lead screw module (7) is connected to the drive mechanism. A traveling mechanism (61) is provided on the slide (6). A welding torch (62) is provided at the working end of the traveling mechanism (61).

2. The welding equipment for processing using a horizontal centrifuge according to claim 1, characterized in that: The drive mechanism includes a servo motor, the output shaft of which is connected to the end of the lead screw module (7) via a coupling, and a speed measuring element is provided at the end of the lead screw module (7) away from the servo motor.

3. The welding equipment for processing using a horizontal centrifuge according to claim 1, characterized in that: The drive mechanism includes a sliding sleeve (52) and a transmission assembly. The sliding sleeve (52) is located inside the tailstock (5) at one end near the second chuck (51). An annular limiting block is provided on the sliding sleeve (52). One end of the sliding sleeve (52) is connected to the second chuck (51). The other end of the sliding sleeve (52) is connected to the lead screw module (7) through the transmission assembly. The first fixed joint (3) and the second fixed joint (4) are both hollow structures. A fixed column (22) is provided inside the first fixed joint (3). The fixed column (22) is fixedly connected to the spindle box (2). The end of the lead screw module (7) away from the transmission assembly is located inside the fixed column (22).

4. The welding equipment for processing using a horizontal centrifuge according to claim 3, characterized in that: The transmission assembly includes a first gear (521), a gear post (53), and a second gear (71). The first gear (521) is mounted on a sliding sleeve (52), and the second gear (71) is mounted at the end of the lead screw module (7). One end of the gear post (53) meshes with the first gear (521), and the other end of the gear post (53) meshes with the second gear (71).

5. A welding device for processing using a horizontal centrifuge according to any one of claims 1-4, characterized in that: The cooling assembly includes a cooling ring (8), which has an inlet and an outlet. The inlet and outlet of the cooling ring (8) are connected to an external coolant delivery system via hoses (81). The cooling ring (8) has a first chamber (82) and a second chamber (85). The first chamber (82) is located on the outer ring of the second chamber (85). One end of the first chamber (82) is connected to the inlet of the cooling ring (8) via a liquid inlet channel (83), and the other end of the first chamber (82) is connected to the second chamber (85). The second chamber (85) is connected to the outlet of the cooling ring (8) via a liquid outlet channel (84).

6. A welding device for processing using a horizontal centrifuge according to any one of claims 1-4, characterized in that: The fixed connector two (4) is provided with an adjustment component, which includes an air pump (46) and several mounting slots (41). Each mounting slot (41) is provided with an adjustment block (42). The adjustment block (42) is movably installed in the mounting slot (41) by a compression spring. The ends of several mounting slots (41) near the axis of the fixed connector two (4) are connected by an air intake channel (44). The working end of the air pump (46) is connected to the air intake channel (44). The structure and internal configuration of the fixed connector two (4) are exactly the same as those of the fixed connector one (3).

7. The welding equipment for processing using a horizontal centrifuge according to claim 6, characterized in that: Several mounting slots (41) are connected at one end away from the axis of the fixed joint two (4) through an exhaust channel (43). The adjustment assembly also includes an adjustment valve (45). One end of the adjustment valve (45) is connected to the exhaust channel (43), the other end of the adjustment valve (45) is connected to the air intake channel (44), and the last end of the adjustment valve (45) is connected to the working end of the air pump (46). The adjustment block (42) has a hollow groove inside, and a through hole is provided on the side end of the hollow groove.

8. The welding equipment for processing using a horizontal centrifuge according to claim 7, characterized in that: The end of the adjusting block (42) away from the axis of the fixed joint (4) is made of rubber.

9. The welding equipment for processing using a horizontal centrifuge according to claim 1, characterized in that: The working end of the welding torch (62) is provided with a detection block (621), and a pressure detection element is provided on the detection block (621).

10. A welding device for processing using a horizontal centrifuge according to claim 1, characterized in that: An angle adjustment module is provided between the welding torch (62) and the walking mechanism (61), the tailstock (5) is slidably mounted on the bed (1), and a self-locking component is provided on the side of the tailstock (5).

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