A vacuum furnace diffusion welding auxiliary tooling for folding rudder parts

Abstract

The present application relates to an auxiliary tooling for diffusion welding of folding rudder parts in a vacuum furnace, and relates to the technical field of diffusion welding, including a fixing mechanism, the fixing mechanism including a base, a one-way screw being installed on the upper side of the base, a threaded barrel being arranged on the one-way screw, and an upper plate being installed on the sides of all the threaded barrels, and also including a pressurizing mechanism, the fixing mechanism can rotate a hexagonal nut to make the four one-way screws rotate in the same direction, and the upper plate will not warp when it is driven to move, and at the same time the pressurizing mechanism uses hydraulic oil to evenly transfer the pressure exerted on the pressure plate to the transition plate, so as to ensure that the pressure at each position of the transition plate is uniform, thereby improving the qualified rate of diffusion welding, allowing the movable plate to move back and forth in the rectangular box to stir the hydraulic oil in the rectangular box, ensuring that the hydraulic oil is homogenized before use, and at the same time, cooperating with the wavy swinging groove and the moving block to allow the movable plate to swing frequently during the movement, thereby enhancing the randomness and coverage of the stirring, and avoiding the limitation of stirring in a single direction.

Description

Technical Field

[0001] The present application relates to the technical field of diffusion welding, and in particular to an auxiliary tooling for vacuum furnace diffusion welding of folding rudder components. Background Art

[0002] Diffusion welding refers to a solid-state welding method in which the parts to be welded are pressurized at high temperature without causing visible deformation or relative movement. During the diffusion welding process, a pressurizing fixture is required to assist in the pressurization process.

[0003] Patent publication number CN212705152U discloses a pressure fixture suitable for diffusion welding. This prior art achieves stable, uniform, and precise application of welding pressure during the diffusion welding process. It boasts simplicity, efficiency, and high assembly precision, and is suitable for welding components of varying shapes and sizes. It produces high-quality metallurgically bonded diffusion welds, thereby improving the overall mechanical properties of the joint.

[0004] However, the above-mentioned prior art has the following technical defects:

[0005] 1. This existing technology achieves stable and uniform welding pressure by ensuring that the screwing height of all clamping screws and fastening nuts is unified. However, there are a large number of fastening nuts and clamping screws, and it is easy for the screwing height of a nut or screw to deviate. When the fastening nut deviates, it will cause the corresponding position of the upper pressure plate to warp, affecting subsequent pressurization. In order to achieve the screwing height of a clamping screw, the pressure at the corresponding position will be different from that at other positions, which will lead to a high scrap rate for diffusion welding assisted by this fixture.

[0006] Second, the prior art has a large number of fastening nuts and compression screws, and each fastening nut and compression screw needs to be rotated each time welding is performed. This operation has many steps, which increases the workload of the staff and takes a long time, thereby extending the entire diffusion welding time and reducing the diffusion welding efficiency.

[0007] In summary, the existing technology still has room for improvement in reducing the scrap rate of diffusion welding, reducing the workload of workers and improving work efficiency. Therefore, those skilled in the art have proposed a device for reducing the scrap rate and using hydraulic oil to assist pressurization. Summary of the Invention

[0008] In order to solve the above problems, the present application provides a vacuum furnace diffusion welding auxiliary tooling for folding rudder parts, which adopts the following technical solutions:

[0009] It includes a fixing mechanism, which includes a base. A one-way screw is rotatably installed at the upper corner of the base. A threaded barrel adapted to the one-way screw is provided on the one-way screw. An upper plate is commonly installed on the sides of all the threaded barrels.

[0010] The fixing mechanism also includes a transmission assembly, which is used to allow all the unidirectional screws to rotate simultaneously in the same direction and for the same number of turns.

[0011] It also includes a pressurizing mechanism, which includes a rectangular box installed in the center of the upper side of the upper plate, a cylinder connected to the rectangular box installed in the center of the upper side of the rectangular box, a piston 2 adapted to the rectangular box is slidably arranged in the rectangular box, a piston 1 adapted to the cylinder is slidably arranged in the cylinder, hydraulic oil is filled between piston 1 and piston 2 in the rectangular box and the cylinder, and a transition plate connected to piston 2 is installed under the upper plate.

[0012] Preferably, a rectangular groove is provided inside the base directly below each one-way screw, and the transmission assembly includes a plurality of rotating rods connected by gears to ensure that when one rotating rod rotates, the other rotating rod is driven to rotate in the same direction, and each rotating rod is rotatably installed in the corresponding two rectangular grooves.

[0013] Preferably, a bevel gear 1 is installed on the lower end of the one-way screw extending into the rectangular groove and on the side surface of the rotating rod in the rectangular groove, and the two bevel gears 1 are meshed with each other.

[0014] Preferably, the pressurizing mechanism further comprises two L-shaped plates symmetrically arranged on the sides of the rectangular box, and a group of mounting rods extending into the rectangular box and located above the second piston are mounted on the sides of the L-shaped plates.

[0015] Preferably, the ends of each group of two mounting rods located in the rectangular box are hinged with a movable plate, a plurality of evenly distributed through holes are opened on the side of the movable plate, and a scraper is hinged on the lower side of the movable plate.

[0016] Preferably, two wavy swing grooves are symmetrically opened on the inner wall of the rectangular box, and moving blocks sliding in the swing grooves on the same side are installed at both ends of the movable plate. When the movable plate moves horizontally, the moving blocks are driven to slide in the swing grooves, causing the movable plate to swing frequently.

[0017] Preferably, a gear is installed at the end of the hinged shaft between the movable plate and the mounting rod, and a rack extending into the rectangular box and meshing with the gear is slidably provided on one side of each gear on the L-shaped plate, and a collision plate is installed at the end of the rack close to the movable plate on the same side.

[0018] Preferably, it also includes a driving mechanism, which includes a bidirectional screw rotatably mounted on the upper side of the rectangular box and on one side of the cylinder, and each thread of the bidirectional screw is provided with a threaded seat 2 that is slidably connected to the rectangular box.

[0019] Preferably, an L-shaped rod connected to the L-shaped plate on the same side is installed on the lower side of the second threaded seat.

[0020] In summary, this application includes at least one of the following beneficial technical effects:

[0021] 1. The present application cooperates with a fixing mechanism and a pressurizing mechanism. The fixing mechanism rotates a hexagonal nut to allow four one-way screws to rotate in the same direction, ensuring that the four threaded barrels have a certain lifting height, and no warping occurs when the upper plate is driven to move. At the same time, the pressurizing mechanism uses hydraulic oil to evenly transfer the pressure exerted on the pressure plate to the transition plate, ensuring that the pressure at each position of the transition plate is uniform, avoiding the situation in the prior art where the tightening screws have different screwing heights, resulting in deviations in the corresponding pressure, and improving the qualified rate of diffusion welding.

[0022] Second, rotating a hexagonal nut can make the four one-way screws rotate in the same direction, and only one pressure plate needs to be pressurized to make the pressure at each position of the transition plate uniform. There is no need for the staff to rotate multiple fastening nuts and tightening screws, which reduces the workload of the staff. In addition, the application of the initial fixing mechanism pressing down and the subsequent pressurization mechanism pressing takes a short time, which speeds up the diffusion welding efficiency.

[0023] 3. The present application cooperates with the pressure-increasing mechanism and the driving mechanism to allow the movable plate to move back and forth in the rectangular box to stir the hydraulic oil in the rectangular box, ensuring that the hydraulic oil is homogenized before use. At the same time, the wavy swinging groove and the moving block are used to allow the movable plate to swing frequently during the movement process, thereby enhancing the randomness and coverage of the stirring and avoiding the limitations of stirring in a single direction. It also drives the scraper to move on the upper surface of the second piston to scratch the hydraulic oil on its upper surface to avoid adhesion of the hydraulic oil. During the frequent swinging of the movable plate, the gear and rack cooperate with the impact plate to frequently hit the movable plate, causing the movable plate and its vicinity to vibrate, thereby improving the homogenization of the hydraulic oil and vibrating the blockage in the through hole to ensure the conduction of the through hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present application is further described below with reference to the accompanying drawings and examples.

[0025] Figure 1 It is a schematic diagram of the structure of this application.

[0026] Figure 2 It is a structural diagram of the fixing mechanism of this application.

[0027] Figure 3 It is a side view of the present application.

[0028] Figure 4 It is a schematic diagram of the pressurizing mechanism of this application.

[0029] Figure 5 It is a cross-sectional view of this application.

[0030] Figure 6 It is a schematic diagram of the internal structure of the pressurizing mechanism of this application.

[0031] Figure 7 yes Figure 6 Enlarged view of part B.

[0032] Figure 8 yes Figure 2 Enlarged view of part A.

[0033] Figure 9 This is a structural diagram of the lower die base of the present application in a disassembled state.

[0034] Figure 10 It is a schematic diagram of the driving mechanism structure of this application.

[0035] In the figure: 1. Fixing mechanism; 101. Base; 102. One-way screw; 103. Threaded barrel; 104. Upper plate; 105. Rectangular groove; 106. Rotating rod; 107. Bevel gear 1; 108. Transmission rod; 109. Bevel gear 2; 110. Hexagonal nut; 111. Strip groove; 112. Two-way thread; 113. Threaded seat 1; 114. Push plate; 115. L-shaped seat; 2. Pressurizing mechanism; 201. Rectangular box; 202. Cylinder; 203. Piston 1; 204. Press plate; 205. Ventilation hole 1; 206. Piston 2; 207. Extension rod; 208. Crossing plate; 209, spring one; 210, vent hole two; 211, limiting ring; 212, movable plate; 214, mounting rod; 215, L-shaped plate; 3, driving mechanism; 301, bidirectional screw; 302, threaded seat two; 303, knob; 304, L-shaped rod; 4, slot; 5, lower die seat; 6, clamp; 7, socket; 8, inner cavity; 9, horizontal bar; 10, vertical plate; 11, spring two; 12, plug-in; 13, swing groove; 14, moving block; 15, scraper; 16, gear; 17, rack; 18, impact plate; 19, L-shaped frame; 20, slide groove; 21, slider. DETAILED DESCRIPTION

[0036] The following combination Figure 1 - Figure 10 The embodiments of the present application are described in detail.

[0037] The embodiment of the present application discloses an auxiliary tooling for vacuum furnace diffusion welding of folding rudder components. The present application cooperates with a fixing mechanism and a pressurizing mechanism. The fixing mechanism rotates a hexagonal nut to allow four one-way screws to rotate in the same direction, ensuring that the four threaded barrels have a certain lifting height, and no warping occurs when the upper plate is driven to move. At the same time, the pressurizing mechanism uses hydraulic oil to evenly transfer the pressure exerted on the pressure plate to the transition plate, ensuring that the pressure at each position of the transition plate is uniform, avoiding the situation in the prior art where the tightening screws have different screwing heights resulting in deviations in the corresponding pressure, and improving the qualified rate of diffusion welding. Example 1

[0038] like Figure 1-Figure 3As shown, it includes a fixing mechanism 1, which includes a base 101. A one-way screw 102 is rotatably installed at the upper corner of the base 101. The upper end of the one-way screw 102 is rotatably installed with an L-shaped seat 115 fixedly connected to the base 101. A threaded barrel 103 adapted to the one-way screw 102 is provided. An upper plate 104 is commonly installed on the side surfaces of all the threaded barrels 103. All the one-way screws 102 are driven to rotate in the same direction, and the upper plate 104 is driven to descend through the threaded barrel 103, and vice versa.

[0039] like Figure 2 As shown, a rectangular groove 105 is provided inside the base 101 directly below each one-way screw 102, and a rotating rod 106 is rotatably installed in the two rectangular grooves 105 on the same side. One end of the rotating rod 106 extends to the outside of the base 101 and is installed with a hexagonal nut 110. The user can rotate the hexagonal nut 110 by using a wrench to drive the rotating rod 106 connected to it to rotate.

[0040] like Figure 2 and Figure 3 As shown, a transmission rod 108 is rotatably installed on the side of the base 101 near the end of the rotating rod 106, and the other end of the rotating rod 106 extends to the outside of the base 101. The end of the rotating rod 106 extending outside the base 101 and the transmission rod 108 near the end of the rotating rod 106 are both installed with bevel gear 2 109, and the two bevel gears 2 109 are engaged with each other. The rotating rotating rod 106 drives the transmission rod 108 to rotate through a group of bevel gears 2 109 at the end, and then drives the other rotating rod 106 to rotate in the same direction through another group of bevel gears 2 109.

[0041] like Figure 2 As shown, the lower end of the one-way screw 102 extending into the rectangular groove 105 and the side of the rotating rod 106 in the rectangular groove 105 are both installed with a bevel gear 107, and the two bevel gears 107 are engaged with each other. The two rotating rods 106 rotating in the same direction drive the four one-way screws 102 to rotate in the same direction through the four sets of bevel gears 107.

[0042] like Figure 4 As shown, it also includes a pressurizing mechanism 2, which includes a transition plate 208 arranged below the upper plate 104. A lower mold base 5 is provided at the center of the upper side of the base 101. The lower mold base 5 is adapted to the shape of the folding rudder parts to be processed. The folding rudder parts are placed in the mold groove of the lower mold base 5. The moving upper plate 104 will also drive the transition plate 208 to move.

[0043] In summary, the left and right blanks of the two folding rudder components are combined together up and down and placed in the die groove of the lower die base 5. The hexagonal nut 110 is rotated by a wrench to drive the rotating rod 106 connected to it to rotate. The rotating rotating rod 106 drives the transmission rod 108 to rotate through a group of bevel gears 109 at the end, and then drives another rotating rod 106 to rotate in the same direction through another group of bevel gears 109. The two rotating rods 106 rotating in the same direction drive the four one-way screws 102 to rotate in the same direction through four groups of bevel gears 107. The upper plate 104 is driven to descend through the four threaded barrels 103, and the transition plate 208 is driven to descend until the transition plate 208 is pressed on the upper side of the workpiece to fix the workpiece.

[0044] like Figure 4 and Figure 5 As shown, a rectangular box 201 is installed at the center of the upper side of the upper plate 104, and a cylinder 202 connected to the rectangular box 201 is installed at the center of the upper side. A piston 203 adapted to the cylinder 202 is slidably arranged inside the cylinder 202. A pressure plate 204 extending to the outside of the cylinder 202 is installed at the center of the upper side of the pressure plate 204. A plurality of air holes 205 are symmetrically provided on the upper side of the cylinder 202. The pressure rod in the vacuum box of the diffusion welding device presses on the pressure plate 204 to press down the piston 203. The air hole 205 is used to connect the area above the piston 203 in the cylinder 202 with the outside.

[0045] like Figure 4 and Figure 5 As shown, a piston 2 206 adapted to the rectangular box 201 is slidingly provided in the rectangular box 201, and hydraulic oil is filled between the piston 1 203 and the piston 2 206 in the rectangular box 201 and the cylinder 202. A plurality of evenly distributed extension rods 207 are installed between the piston 206 and the transition plate 208. When the piston 1 203 is pressed down, the hydraulic oil in the cylinder 202 is squeezed, and the rectangular box 201 is connected to the cylinder 202, and the downward pressure is evenly transmitted to all directions through the hydraulic oil in the rectangular box 201, ensuring uniform pressure at each location on the piston 206, and thus making the downward pressure of the transition plate 208 on the workpiece uniform, thereby ensuring the qualified rate of diffusion welding.

[0046] like Figure 5 As shown, a plurality of evenly distributed springs 1 209 are installed below the piston 2 206 in the rectangular box 201, and a matching limiting ring 211 is installed above the piston 2 206 on the inner wall of the rectangular box 201. A plurality of air holes 210 are provided on the lower side of the rectangular box 201 and the upper plate 104. The air holes 210 are used to connect the area below the piston 2 206 in the rectangular box 201 with the outside world. The limiting ring 211 limits the height above the piston 206. At the same time, when the piston 206 descends, the spring 1 209 is compressed, and when the spring 1 209 rebounds, the piston 206 is driven to restore its position.

[0047] In summary, under a vacuum environment, the pressure rod in the vacuum box of the diffusion welding device presses on the pressure plate 204, which can press down the piston 1 203. When the piston 1 203 is pressed down, it will squeeze the hydraulic oil in the cylinder 202, and the rectangular box 201 is connected to the cylinder 202, and then the downward pressure will be evenly transmitted to all directions through the hydraulic oil in the rectangular box 201, ensuring that the pressure at each point on the piston 2 206 is balanced, and then the downward pressure at each point on the transition plate 208 on the workpiece is balanced, thereby ensuring the qualified rate of diffusion welding.

[0048] like Figure 4 and Figure 6 As shown, the pressurizing mechanism 2 also includes two L-shaped plates 215 symmetrically arranged on the side of the rectangular box 201. A group of mounting rods 214 extending into the rectangular box 201 and located above the second piston 206 are installed on the side of the L-shaped plate 215. The ends of each group of two mounting rods 214 located in the rectangular box 201 are hinged with a movable plate 212. A plurality of evenly distributed through holes are provided on the side of the movable plate 212. When the two L-shaped plates 215 approach each other or move away from each other, the two movable plates 212 will be driven to approach or move away from each other in the rectangular box 201 through the mounting rods 214, thereby stirring a large amount of hydraulic oil above the second piston 206 in the rectangular box 201 to ensure the homogenization of the hydraulic oil.

[0049] like Figure 5 and Figure 6 As shown, two wavy swing grooves 13 are symmetrically opened on the inner wall of the rectangular box 201, and moving blocks 14 sliding in the swing groove 13 on the same side are installed at both ends of the movable plate 212. When the movable plate 212 moves horizontally, it drives the moving block 14 to slide in the swing groove 13. Since the swing groove 13 is wavy, the height of the moving block 14 changes during the sliding process, thereby forcing the movable plate 212 to swing frequently, thereby enhancing the randomness and coverage of the stirring and avoiding the limitation of stirring in a single direction.

[0050] like Figure 4 and Figure 6 As shown, the lower side of the movable plate 212 is hinged with a scraper 15 in contact with the upper surface of the piston 206. During the movement of the movable plate 212, the scraper 15 is driven to move on the upper surface of the piston 206, scratching the hydraulic oil on its upper surface to prevent the adhesion of the hydraulic oil. At the same time, the scraper 15 and the movable plate 212 are hinged. When the movable plate 212 is vertical, the scraper 15 is in an inclined state with the bottom in contact with the piston 206. When the movable plate 212 gradually deflects, the scraper 15 gradually becomes vertical due to its own gravity, so that the bottom of the scraper 15 is always in contact with the upper side of the piston 206.

[0051] like Figure 6 and Figure 7As shown, the movable plate 212 and the mounting rod 214 are hingedly connected to the end of the rotating shaft with a gear 16 installed. A rack 17 extending into the rectangular box 201 and meshing with the gear 16 is slidably provided on one side of each gear 16 on the L-shaped plate 215. The tooth portion of the rack 17 is all located in the rectangular box 201. A striker plate 18 is installed at the end of the rack 17 near the movable plate 212 on the same side. The movable plate 212 frequently swings, driving the gear 16 to frequently rotate forward and reverse, thereby driving the rack 17 to reciprocate back and forth, so that the striker plate 18 on it can frequently hit the movable plate 212, causing vibration near the movable plate 212, thereby improving the homogenization of the hydraulic oil. Even if the through hole of the movable plate 212 is blocked, the blockage in the through hole can be vibrated out by vibration, thereby ensuring the conductivity of the through hole.

[0052] like Figure 1 and Figure 10 As shown, it also includes a driving mechanism 3, which includes a bidirectional screw 301 rotatably mounted on the upper side of the rectangular box 201 and on one side of the cylinder 202, and each thread of the bidirectional screw 301 is provided with a threaded seat 2 302 which is slidably connected to the rectangular box 201, and an L-shaped rod 304 which is bolted to the L-shaped plate 215 on the same side is installed on the lower side of the threaded seat 202, and a knob 303 is installed at one end of the bidirectional screw 301. Rotating the knob 303 drives the bidirectional screw 301 to rotate, driving the two threaded seats 202 away from each other, and driving the two L-shaped plates 215 away from each other through the two L-shaped rods 304, and vice versa.

[0053] In summary, the rotating knob 303 before welding drives the bidirectional screw 301 to rotate, driving the two threaded seats 2 302 to move away from each other, and the two L-shaped plates 215 to move away from each other through the two L-shaped rods 304. The two L-shaped plates 215 drive the two movable plates 212 to move away from each other in the area above the piston 206 in the rectangular box 201 through the mounting rod 214, so that a large amount of hydraulic oil above the piston 206 can be stirred. At the same time, when the movable plate 212 moves horizontally, it drives the moving block 14 to slide in the swing groove 13, forcing the movable plate 212 to swing frequently during the movement, thereby enhancing the randomness and coverage of the stirring. range, avoiding the limitation of stirring in a single direction, the moving movable plate 212 will also drive the scraper 15 to move on the upper surface of the piston 206, scratching the hydraulic oil on its upper surface to avoid the adhesion of the hydraulic oil, and the movable plate 212 frequently swings to drive the gear 16 to frequently rotate forward and reverse, thereby driving the rack 17 to move back and forth, so that the impact plate 18 on it can frequently hit the movable plate 212, causing vibration near the movable plate 212 to improve the homogenization of the hydraulic oil. Even if the through hole of the movable plate 212 is blocked, the blockage in the through hole can be vibrated out by vibration to ensure the conduction of the through hole. Example 2

[0054] Based on the first embodiment, Figure 2As shown, a strip groove 111 is provided on the side of the base 101 around one of the rotating rods 106, and a bidirectional thread 112 is provided on the side of the corresponding rotating rod 106 in the strip groove 111. Both threads of the bidirectional thread 112 are provided with a thread seat 113 that is slidably connected to the inner wall of the strip groove 111. When the rotating rod 106 rotates, the two thread seats 113 are driven away from each other through the bidirectional thread 112.

[0055] like Figure 8 As shown, the base 101 is provided with an inner cavity 8 connected to the strip groove 111, and two cross bars 9 are symmetrically installed in the inner cavity 8. Two vertical plates 10 extending into the strip groove 111 are slidably provided on the two cross bars 9, and a plurality of evenly distributed springs 11 are connected between the two vertical plates 10. When the two vertical plates 10 approach each other, the springs 11 will be compressed, and when the springs 11 rebound, the two vertical plates 10 will be driven to restore their positions.

[0056] like Figure 2 and Figure 8 As shown, a push plate 114 is installed on the other side of each threaded seat 113 on one side of the vertical plate 10, and a group of plug-ins 12 are installed on the side of the vertical plate 10. When the distance between the two threaded seats 113 is the smallest, the two vertical plates 10 will be squeezed closer to each other by the two push plates 114, and the moving vertical plate 10 will also drive the group of plug-ins 12 thereon to move.

[0057] like Figure 8 and Figure 9 As shown, two card slots 4 are symmetrically opened on the upper side of the base 101 around the inner cavity 8, and a card member 6 adapted thereto is provided in each card slot 4. A group of sockets 7 aligned with a group of plug-ins 12 on the same side are opened on the side of the card member 6. The upper sides of the two card members 6 are fixedly connected to the lower mold base 5. When a group of plug-ins 12 on each vertical plate 10 is inserted into the two sockets 7 on the card member 6 on the same side, the card member 6 can be fixed to the base 101, and then the lower mold base 5 can be fixed on the base 101.

[0058] In summary, first, when the distance between the two threaded seats 113 is closest, the two vertical plates 10 will be squeezed together by the two push plates 114, compressing the spring 2 11. Then, when the rotating rod 106 rotates to make the upper plate 104 descend, the two threaded seats 113 will be driven away from each other, releasing the squeezing of the vertical plate 10. The spring 2 11 rebounds and drives the vertical plate 10 to restore its position. The plug-in 12 on the vertical plate 10 is inserted into the two sockets 7 of the same-side clamp 6, fixing the lower die seat 5 on the base 101 to enhance the stability of the workpiece. Then, when the rotating rod 106 is reversed to make the upper plate 104 rise, the two threaded seats 113 will be driven together. When the push plate 114 contacts the vertical plate 10, it will push it to move, allowing the two vertical plates 10 to approach each other, driving the plug-in 12 to move out of the socket 7, releasing the fixation of the lower die seat 5, and facilitating the replacement of the lower die seat 5 whose die groove is compatible with the workpiece to be processed. Example 3

[0059] Based on the first and second embodiments, Figure 3 As shown, this embodiment also provides a linkage component to link the fixing mechanism 1 and the pressurizing mechanism 2 to achieve synchronization of the two operations. The linkage component includes an L-shaped frame 19 installed on the side of the threaded seat 113. A slide groove 20 is provided on the side of the L-shaped frame 19. A slider 21 connected to the L-shaped plate 215 on the same side is slidably provided in the slide groove 20. When the rotating rod 106 is rotated to lower the upper plate 104 during the subsequent fixing process, the two threaded seats 113 are driven away from each other through the two-way thread 112, driving the two L-shaped frames 19 away from each other. The two L-shaped plates 215 are driven away from each other through the cooperation of the slide groove 20 and the slider 21, and the hydraulic oil in the rectangular box 201 can still be stirred. The staff rotates a hexagonal nut 110 to make the fixing mechanism 1 and the pressurizing mechanism 2 work simultaneously.

[0060] In addition, the knob 303 and the hexagonal nut 110 proposed in Example 1 can also be driven by an existing motor, which is connected to the bidirectional screw 301 or the rotating rod 106 through a transmission shaft to realize the electric drive to rotate the bidirectional screw 301 or the rotating rod 106.

[0061] This application also discloses a method for using a vacuum furnace diffusion welding auxiliary tooling for folding rudder parts, which is as follows:

[0062] S1. Workpiece clamping. The blank workpiece placed on the lower die base 5 is fixed by the fixing mechanism 1. Specifically, the device is placed in the vacuum box of the diffusion welding device. The left and right blanks of the two folding rudder components are combined up and down and placed in the die groove of the lower die base 5. The hexagonal nut 110 is rotated by a wrench to drive the rotating rod 106 connected to it to rotate. The rotating rotating rod 106 drives the transmission rod 108 to rotate through a group of bevel gears 109 at the end, and then drives another rotating rod 106 to rotate in the same direction through another group of bevel gears 109. The two rotating rods 106 rotating in the same direction drive the four one-way screws 102 to rotate in the same direction through four groups of bevel gears 107. The upper plate 104 is driven to descend through the four threaded barrels 103, and the transition plate 208 is driven to descend until the transition plate 208 is pressed on the upper side of the workpiece to fix the workpiece.

[0063] S2. Oil stirring. After the fixing mechanism 1 fixes the workpiece, the hydraulic oil in the rectangular box 201 is stirred by the pressurizing mechanism 2 in cooperation with the driving mechanism 3. Specifically, the rotating knob 303 drives the bidirectional screw 301 to rotate, driving the two threaded seats 2 302 away from each other, and the two L-shaped rods 304 drive the two L-shaped plates 215 away from each other. The two L-shaped plates 215 drive the two movable plates 212 to move away from each other in the area above the piston 2 206 in the rectangular box 201 through the mounting rod 214, and vice versa. The movable plates 212 stir a large amount of hydraulic oil above the piston 2 206, and the operation is repeated many times to ensure the homogenization of the hydraulic oil.

[0064] S3. Improve stirring. In the process of stirring the hydraulic oil in the rectangular box 201, cooperate with other components in the device to improve the stirring effect. Specifically, when the movable plate 212 moves horizontally, it drives the movable block 14 to slide in the swing groove 13, forcing the movable plate 212 to swing frequently during the movement, thereby enhancing the randomness and coverage of the stirring and avoiding the limitation of stirring in a single direction. The moving movable plate 212 will also drive the scraper 15 to move on the upper surface of the piston 206, scratching the hydraulic oil on its upper surface to avoid adhesion of the hydraulic oil. During the frequent swinging of the movable plate 212, it drives the gear 16 to frequently rotate forward and reverse, and then drives the rack 17 to reciprocate back and forth, so that the impact plate 18 on it can frequently hit the movable plate 212, causing vibration near the movable plate 212, improving the homogenization of the hydraulic oil, and also vibrating out the blockage in the through hole to ensure the conduction of the through hole.

[0065] S4, pressurized welding, then use the pressure plate 204 and the transition plate 208 to press down the blank workpiece for diffusion welding. Specifically, the vacuum box is evacuated, and the internal temperature is increased to heat the workpiece to the predetermined welding temperature. Then the pressure rod in the vacuum box is pressed on the pressure plate 204 to press down the piston 1 203. When the piston 1 203 is pressed down, it will squeeze the hydraulic oil in the cylinder 202, and the rectangular box 201 is connected to the cylinder 202, and then the downward pressure will be evenly transmitted to all directions through the hydraulic oil in the rectangular box 201, ensuring that the pressure on each part of the piston 2 206 is balanced, and then the downward pressure on the workpiece by each part of the transition plate 208 is balanced, and the two workpieces are pressed down by the transition plate 208 to perform diffusion welding.

[0066] S5. Take out the finished product and remove the folding rudder parts that have been diffusion-welded on the fixing mechanism 1. Specifically, after the diffusion welding is completed, release the vacuum in the vacuum box, open the vacuum box, reverse the hexagonal nut 110 to drive the four one-way screws 102 to reverse, drive the upper plate 104 to rise, drive the transition plate 208 to rise to release the clamping of the folding rudder parts, and then remove the folding rudder parts from the lower die base 5.

[0067] It is obvious to those skilled in the art that the present application is not limited to the details of the exemplary embodiments described above, and that the present application can be implemented in other specific forms without departing from the spirit or essential features of the present application. Therefore, the embodiments should be considered as exemplary and non-restrictive in all respects.

[0068] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A vacuum furnace diffusion welding auxiliary tooling for folding rudder parts, characterized by: The fixing mechanism (1) includes a base (101), a one-way screw (102) is rotatably mounted at an upper corner of the base (101), a threaded barrel (103) adapted to the one-way screw (102) is provided on the one-way screw (102), and an upper plate (104) is commonly mounted on the sides of all the threaded barrels (103); The fixing mechanism (1) further includes a transmission assembly, which is used to allow all the one-way screws (102) to rotate simultaneously in the same direction and the same number of turns; The pressurizing mechanism (2) further comprises a rectangular box (201) mounted at the center of the upper side of the upper plate (104), a cylinder (202) connected to the rectangular box (201) being mounted at the center of the upper side of the rectangular box (201), a second piston (206) adapted thereto being slidably disposed in the rectangular box (201), a first piston (203) adapted thereto being slidably disposed in the cylinder (202), hydraulic oil being filled between the first piston (203) and the second piston (206) in the rectangular box (201) and the cylinder (202), and a transition plate (208) connected to the second piston (206) being mounted below the upper plate (104); The pressurizing mechanism (2) further comprises two L-shaped plates (215) symmetrically arranged on the sides of the rectangular box (201), a group of mounting rods (214) extending into the rectangular box (201) and located above the second piston (206) are mounted on the sides of the L-shaped plates (215), and the ends of each group of two mounting rods (214) located in the rectangular box (201) are hingedly connected to a movable plate (212); The movable plate (212) and the mounting rod (214) are hingedly connected to the end of the rotating shaft with a gear (16). A rack (17) extending into the rectangular box (201) and meshing with the gear (16) is slidably provided on the L-shaped plate (215) on one side of each gear (16). A collision plate (18) is installed on the end of the rack (17) close to the movable plate (212) on the same side. The invention also includes a driving mechanism (3), which includes a bidirectional screw (301) rotatably mounted on the upper side of the rectangular box (201) and located on one side of the cylinder (202), each thread of the bidirectional screw (301) is provided with a second thread seat (302) slidably connected to the rectangular box (201), and an L-shaped rod (304) connected to the L-shaped plate (215) on the same side is installed on the lower side of the second thread seat (302).

2. The vacuum furnace diffusion welding auxiliary tooling for folding rudder parts according to claim 1, characterized in that: A rectangular slot (105) is provided inside the base (101) directly below each one-way screw (102). The transmission assembly includes a plurality of rotating rods (106) connected by gears, ensuring that when one rotating rod (106) rotates, the other rotating rod (106) rotates in the same direction. Each rotating rod (106) is rotatably installed in two corresponding rectangular slots (105).

3. The vacuum furnace diffusion welding auxiliary tooling for folding rudder parts according to claim 2, characterized in that: The lower end of the one-way screw (102) extending into the rectangular groove (105) and the side surface of the rotating rod (106) in the rectangular groove (105) are both installed with a bevel gear (107), and the two bevel gears (107) are meshed with each other.

4. The vacuum furnace diffusion welding auxiliary tooling for folding rudder parts according to claim 3, characterized in that: A plurality of evenly distributed through holes are provided on the side of the movable plate (212), and a scraper (15) is hingedly connected to the lower side of the movable plate (212).

5. The vacuum furnace diffusion welding auxiliary tooling for folding rudder parts according to claim 4, characterized in that: Two wave-shaped swing grooves (13) are symmetrically provided on the inner wall of the rectangular box (201), and moving blocks (14) sliding in the swing grooves (13) on the same side are installed at both ends of the movable plate (212). When the movable plate (212) moves horizontally, the moving blocks (14) are driven to slide in the swing grooves (13), causing the movable plate (212) to swing frequently.

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