Flanging and bulging device of high-speed stamping die

Abstract

The invention relates to the technical field of stainless steel inner wall machining, and particularly discloses a flanging and bulging device of a high-speed stamping die. Briquetting; a punching column; a guide rod; and a base. When the inner wall is punched, the punching column drives the conical jacking column to move up and down for a certain number of times, so that the pressing blocks change positions through continuous rotation, and the outermost surfaces of the pressing blocks can be in contact with most positions of the inner side of the inner wall as much as possible after the pressing blocks move outwards; therefore, gaps a are effectively avoided when the inner side of the inner wall is stamped by the pressing blocks, the surface of the inner wall is kept round as far as possible after stamping and bulging, gaps between the inner wall and the inner side of the end of the telescopic pipe are effectively avoided when the inner wall and the end of the telescopic pipe are assembled, and the welding difficulty and the welding duration of the inner wall and the end of the telescopic pipe are reduced. The assembling efficiency is improved, the sealing performance between the inner wall and the inner side of the end of the telescopic pipe is improved, and therefore the quality of the whole automobile flexible joint is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of stainless steel inner wall processing, and particularly relates to a flanging and bulging device for a high-speed stamping die. Background Art

[0002] An automotive flexible joint connects the engine and the exhaust system and is an important connecting part for absorbing and reducing vibration. The use of an automotive flexible joint can improve the comfort of passengers, effectively improve the working environment of the purification device in the exhaust system, and has the effect of protecting and prolonging the service life of the air purifier and the engine.

[0003] There is an existing automotive flexible joint with a patent publication number of CN207268193U. During the processing of its inner wall, it needs to be stamped and bulged into a specified size and form a step (as Figure 9 shown), so as to better fit the inner wall of the end of the telescopic pipe. Currently, this process is generally completed by a stainless steel inner wall bulging machine. The stainless steel inner wall bulging machine expands outward through multiple split blocks to bulge the inner wall. During this process, after the split blocks expand outward, only the outermost surface of the split blocks contacts the inner side of the inner wall, resulting in a gap a between the multiple split blocks and the inner wall (as Figure 10 shown). This causes the split blocks to be unable to fully extrude the inner side of the inner wall, resulting in an uneven outer surface of the inner wall after being stamped and bulged. When assembling the inner wall with the end of the telescopic pipe, there is a gap between the inner wall and the inner side of the end of the telescopic pipe, which increases the difficulty and welding duration when welding the inner wall and the end of the telescopic pipe, reduces the assembly efficiency, reduces the sealing performance between the inner wall and the inner side of the end of the telescopic pipe, and thus reduces the quality of the entire automotive flexible joint. Summary of the Invention

[0004] The purpose of the present invention is to provide a flanging and bulging device for a high-speed stamping die aiming at the deficiencies of the existing technology, so as to solve the technical problems in the existing technology that when stamping and bulging the inner wall, the uneven outer surface of the inner wall leads to an increase in the difficulty and welding duration when welding the inner wall and the end of the telescopic pipe, reduces the assembly efficiency, reduces the sealing performance between the inner wall and the inner side of the end of the telescopic pipe, and thus reduces the quality of the entire automotive flexible joint.

[0005] The purpose of the present invention can be achieved through the following technical solutions: A flanging and bulging device for a high-speed stamping die, including a platform and a mounting frame. The device further includes: A stamping assembly. There are several groups of the stamping assemblies. The stamping assembly includes a first telescopic member, the first telescopic member is installed on the mounting frame, a moving frame is installed at the output end of the first telescopic member, a second telescopic member is installed on the moving frame, and a die base is installed at the bottom of the moving frame; Compression blocks, a number of said compression blocks are provided and arranged in an annular array. A number of said compression blocks are installed in a die base. A number of sets of extrusion plates are installed in the die base. An elastic member I is connected between the extrusion plate and the inner wall of the die base. The extrusion plate abuts against the outer surface of the compression block; Stamping column, the output end of the telescopic member II is installed with a stamping column. A conical top column is arranged at the bottom of the stamping column. The conical top column is inserted into the conical holes formed by a number of compression blocks. When the conical top column moves downward, a number of compression blocks move radially outward along the die base; Guide rod, the top of the compression block is provided with a guide rod. The guide rod is bent. A number of vertical grooves and a number of inclined grooves are formed on the surface of the stamping column. A number of vertical grooves and a number of inclined grooves are arranged alternately and communicate with each other. The bent part of the guide rod is sleeved in the wave-shaped groove formed by a number of vertical grooves and a number of inclined grooves; Base, a base is arranged on the platform. The base is located below a number of compression blocks. The inner wall to be stamped is placed on the base.

[0006] As a preference of the above technical solution, a limit sleeve is installed at the bottom of the die base through a connecting rod. The limit sleeve is located outside a number of compression blocks. The inner diameter of the limit sleeve is equal to the outer diameter of the inner wall after bulging.

[0007] As a preference of the above technical solution, a clamping mechanism is installed on the base. The clamping mechanism is used for clamping and fixing the inner wall to be stamped. A transmission component is installed on the moving frame and the platform. The transmission component is connected with the clamping mechanism. The transmission component includes a main rack. The main rack is fixed on the moving frame. The bottom end of the main rack penetrates through the platform. A gear is rotatably installed at the bottom of the platform. The gear meshes with the main rack. A slave rack is connected to the clamping mechanism. The slave rack meshes with the gear.

[0008] As a preference of the above technical solution, the clamping mechanism includes: Push-pull rod, the push-pull rod is fixedly connected with the slave rack. A connecting ring is arranged at the top of the push-pull rod; Warped plate, the warped plate is in a scissor shape. The rotating part in the middle of the warped plate is installed on the connecting ring. Extrusion grooves are formed on both sides of the warped plate. A number of fixing plates are arranged at the bottom of the base. The bent end of the fixing plate is sleeved in the extrusion groove. An elastic member II is connected between the two movable ends at the bottom of the warped plate; Outer clamping plate and inner clamping plate, the two movable ends at the top of the warped plate are respectively fixed with an outer clamping plate and an inner clamping plate. A number of through holes are formed at the top of the base. The number of through holes is arranged in an annular array. The outer clamping plate and the inner clamping plate pass through the through holes to clamp the inner wall located on the base.

[0009] Preferably, as the above technical solution, guide grooves are formed on both sides of the outer splint and the inner splint, and a plurality of guide blocks are slidably installed in the guide grooves. A plurality of sliding grooves are formed in the through holes, and the plurality of guide blocks are slidably installed in the plurality of sliding grooves.

[0010] Preferably, as the above technical solution, mounting holes are formed in both the outer splint and the inner splint. A leveling plate is slidably installed in the mounting hole of the outer splint. The top of the leveling plate is in a horizontal state, and the leveling plate only moves up and down. The leveling plate passes through the mounting hole in the inner splint. Elastic members III are installed in both the outer splint and the inner splint, and the top of the elastic member III abuts against the bottom of the leveling plate.

[0011] Preferably, as the above technical solution, a material guiding assembly is installed on the platform, and a U-shaped frame is arranged on the base. The material guiding assembly guides a plurality of inner walls onto the base and is blocked by the U-shaped frame. A feeding plate is installed on the base, and the feeding plate is located on one side of the U-shaped frame. A telescopic member III is installed on the feeding plate. The feeding plate pushes the inner walls on the base below a plurality of pressing blocks. A pushing plate is installed on the base, and a telescopic member IV is installed on the pushing plate. The pushing plate pushes the inner walls after stamping and bulging from the base and drops them into the collection basket below the platform through the discharge hole. A photoelectric switch is installed on the base, and the photoelectric switch is arranged opposite to the feeding plate. The feeding plate pushes the inner wall in the direction of the photoelectric switch.

[0012] The beneficial effects of the present invention are as follows: 1. In the present invention, when the inner wall is being stamped, the stamping column drives the conical ejector pin to move up and down a certain number of times, so that the pressing blocks continuously rotate to change their positions, enabling the outermost surfaces of the plurality of pressing blocks to contact as much as possible with most positions inside the inner wall after moving outwards. Thus, it effectively avoids the existence of gap a when the plurality of pressing blocks stamp the inside of the inner wall, so that the surface of the inner wall remains as circular as possible after stamping and bulging. This effectively avoids the existence of a gap between the inner wall and the inner side of the end of the telescopic tube when assembling the inner wall and the end of the telescopic tube, thereby reducing the difficulty and welding duration when welding the inner wall and the end of the telescopic tube, improving the assembly efficiency, enhancing the sealing performance between the inner wall and the inner side of the end of the telescopic tube, and thus improving the quality of the entire automotive flexible joint. 2. In the present invention, during the stamping and bulging of the inner wall, by stamping the inner wall with a number of pressing blocks multiple times and changing their positions, it is possible to effectively avoid the non-circularity of the inner ring of the inner wall, thereby effectively avoiding the generation of turbulence due to unstable airflow in the flexible joint during vehicle exhaust, effectively avoiding obvious noise in the cockpit, and thus improving the riding comfort. At the same time, this can make the pressure inside the flexible joint uniform, avoid scratches, pitting or spalling inside the flexible joint, and thus improve the service life of the flexible joint. By stamping the inner wall with a number of pressing blocks multiple times and changing their positions, both the outer ring and the inner ring of the inner wall can be made circular, thereby improving the quality of the inner wall, improving the quality of the flexible joint, and further improving the service life of the flexible joint. 3. In the present invention, when a number of pressing blocks stamp the inner wall, the limiting sleeve is located outside the inner wall. Through the restriction of the limiting sleeve, the outer ring of the inner wall can be made more circular, thereby further effectively avoiding the existence of a gap between the inner wall and the inner side of the end of the telescopic tube when the inner wall is assembled with the end of the telescopic tube. In addition, the electromagnetic induction coil installed inside the limiting sleeve can appropriately heat the inner wall, thereby softening the material of the inner wall. In this way, when a number of pressing blocks stamp the inner wall, the bulging of the inner wall is faster, thereby improving the stamping and bulging efficiency. At the same time, this reduces the deformation resistance of the inner wall and effectively avoids the rupture of the inner wall during stamping and bulging, thereby reducing the processing rejection rate. 4. In the present invention, a number of groups of outer clamping plates and inner clamping plates clamp the inner wall, which can adjust the position of the inner wall, slowly move the inner wall directly below a number of pressing blocks, and make the inner wall coaxial with a number of pressing blocks, thereby effectively avoiding the direct extrusion of the top or the inner side of the inner wall by a number of pressing blocks after they move down, resulting in deformation and damage of the inner wall, and thus improving the success rate of inner wall processing, processing efficiency and effect. Through the mutual cooperation of the guide grooves, guide blocks and sliding grooves, the outer clamping plates and inner clamping plates can only move vertically and horizontally when moving, thereby ensuring that the outer clamping plates and inner clamping plates always remain in a vertical state. Thus, after a number of outer clamping plates and inner clamping plates clamp the inner wall, the inner wall will be in a vertical state, further effectively avoiding the direct extrusion of the top or the inner side of the inner wall by a number of pressing blocks after they move down, resulting in deformation and damage of the inner wall, improving the success rate of inner wall processing, processing efficiency and effect. 5. In the present invention, when the outer clamping plates and inner clamping plates move upward, the flattening plates first contact the bottom of the inner wall. A number of flattening plates lift the inner wall and straighten it, making the inner wall in a vertical state. In this way, when a number of pressing blocks move down to squeeze the inner wall, the inner wall is in a vertical state and coaxial with a number of pressing blocks at this time, further effectively avoiding the direct extrusion of the top or the inner side of the inner wall by a number of pressing blocks after they move down, resulting in deformation and damage of the inner wall, improving the success rate of inner wall processing, processing efficiency and effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2Schematic diagram of the stamping assembly and the material guiding assembly; Figure 3 Schematic diagram of the stamping column and the pressing block; Figure 4 Schematic diagram of the guiding rod and the pressing block; Figure 5 Schematic diagram of the transmission assembly; Figure 6 Schematic diagram of the clamping mechanism; Figure 7 Schematic diagram of the outer clamping plate and the inner clamping plate; Figure 8 Schematic diagram of the limit sleeve; Figure 9 Schematic diagram of the comparison before and after the inner wall is stamped; Figure 10 Schematic diagram of the defects existing in the current inner wall during stamping and bulging.

[0014] In the figure: 1. Platform; 2. Mounting frame; 3. Stamping assembly; 31. First telescopic member; 32. Moving frame; 33. Die base; 34. Second telescopic member; 4. Stamping column; 41. Conical top column; 42. Vertical groove; 43. Inclined groove; 5. Pressing block; 51. Extrusion plate; 52. First elastic member; 53. Guiding rod; 6. Base; 61. Through hole; 62. Sliding groove; 7. Transmission assembly; 71. Main rack; 72. Gear; 73. Secondary rack; 8. Clamping mechanism; 81. Push-pull rod; 811. Connecting ring; 82. Rocker; 821. Extrusion groove; 822. Second elastic member; 83. Outer clamping plate; 84. Inner clamping plate; 85. Guiding groove; 86. Guiding block; 87. Fixed plate; 88. Mounting hole; 89. Flattening plate; 891. Third elastic member; 9. Limit sleeve; 91. Connecting rod; 10. U-shaped frame; 12. Feeding plate; 121. Third telescopic member; 13. Pushing plate; 131. Fourth telescopic member; 14. Photoelectric switch; 15. Material guiding assembly; 16. Discharge hole. Detailed implementation manners

[0015] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0016] Such as Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 8As shown in the figure, a flanging and bulging device for a high-speed stamping die includes a platform 1 and a mounting frame 2. The device further includes: A stamping assembly 3, with several groups of stamping assemblies 3. The stamping assembly 3 includes a first telescopic member 31, the first telescopic member 31 is installed on the mounting frame 2, the output end of the first telescopic member 31 is installed with a moving frame 32, a second telescopic member 34 is installed on the moving frame 32, and a die base 33 is installed at the bottom of the moving frame 32; Pressure blocks 5, with several pressure blocks 5 arranged in a circular array. Several pressure blocks 5 are installed in the die base 33, and several groups of extrusion plates 51 are installed in the die base 33. An elastic member 52 is connected between the extrusion plate 51 and the inner wall of the die base 33, and the extrusion plate 51 abuts against the outer surface of the pressure block 5; A stamping column 4, the output end of the second telescopic member 34 is installed with a stamping column 4, a conical top column 41 is arranged at the bottom of the stamping column 4, and the conical top column 41 is inserted into the conical holes formed by several pressure blocks 5. When the conical top column 41 moves downward, several pressure blocks 5 move radially outward along the die base 33; A guide rod 53, a guide rod 53 is provided at the top of the pressure block 5, the guide rod 53 is bent. Several vertical grooves 42 and several inclined grooves 43 are formed on the surface of the stamping column 4. The several vertical grooves 42 and the several inclined grooves 43 are arranged alternately and communicate with each other. The bent part of the guide rod 53 is sleeved in the wave groove formed by the several vertical grooves 42 and the several inclined grooves 43; A base 6, a base 6 is arranged on the platform 1, the base 6 is located below several pressure blocks 5, and the inner wall to be stamped is placed on the base 6.

[0017] In one case of this embodiment, both the first telescopic member 31 and the second telescopic member 34 can be cylinders, or other components capable of telescopic driving; the elastic member 52 can be a spring, or other components capable of elastic telescopic movement; when the guide rod 53 is driven by the pressure block 5 to move outward, the bent part of the guide rod 53 is still sleeved in the wave groove formed by the several vertical grooves 42 and the several inclined grooves 43.

[0018] In actual application of this embodiment, the inner wall to be stamped is placed on the base 6 and below a plurality of pressing blocks 5. Then, the moving frame 32 is lowered by the first telescopic member 31, so that the plurality of pressing blocks 5 enter the inner wall. Next, the second telescopic member 34 is activated to drive the stamping column 4 and the conical top column 41 to move downward. After the conical top column 41 moves downward, it squeezes the plurality of pressing blocks 5 to move outward, so that the plurality of pressing blocks 5 squeeze the inner side of the inner wall, and the inner wall is expanded. After the inner wall is expanded once, the second telescopic member 34 is activated to contract, so that the stamping column 4 drives the conical top column 41 to move upward. During the process of the stamping column 4 moving downward and then upward, the guide rods 53 first move along the vertical grooves 42 and then along the inclined grooves 43. In this way, the plurality of guide rods 53 will drive the plurality of pressing blocks 5 to rotate a certain angle after the stamping column 4 moves upward. Set corresponding parameters according to the actual situation, so that the stamping column 4 drives the conical top column 41 to move up and down a certain amount of times when the inner wall is stamped, so that the pressing blocks 5 change their positions by continuous rotation, so that the outermost surfaces of the plurality of pressing blocks 5 can contact as much as possible with most positions on the inner side of the inner wall after moving outward, thereby effectively avoiding the existence of a gap a between the plurality of pressing blocks 5 when stamping the inner side of the inner wall (as Figure 10 shown), so that the surface of the inner wall remains as circular as possible after stamping and expansion, thereby effectively avoiding the existence of a gap between the inner wall and the inner side of the end of the telescopic tube when assembling the inner wall and the end of the telescopic tube, thereby reducing the difficulty and welding time when welding the inner wall and the end of the telescopic tube, improving the assembly efficiency, improving the sealing performance between the inner wall and the inner side of the end of the telescopic tube, and thus improving the quality of the entire automotive flexible joint; Since the plurality of pressing blocks 5 move outward to stamp the inner wall, there is a certain gap b between two adjacent pressing blocks 5 after the pressing blocks 5 move outward (as Figure 10 shown), which causes the inner side of the inner wall in this area not to be stamped, resulting in the inner wall protruding inward or having a step at the area of the gap b after being stamped, resulting in the inner circle of the inner wall not being round. This will cause the airflow to be unstable in the flexible joint during exhaust, generating turbulence, affecting the smoothness of exhaust, increasing the exhaust back pressure, and being transmitted to the vehicle body through the drive shaft, causing obvious noise in the cockpit and reducing the ride comfort; when the inner wall is stamped and expanded, by stamping the inner wall with the plurality of pressing blocks 5 multiple times and changing positions, the non-circularity of the inner circle of the inner wall can be effectively avoided, thereby effectively avoiding the unstable generation of turbulence of the airflow in the flexible joint during automotive exhaust, effectively avoiding the generation of obvious noise in the cockpit, and thus improving the ride comfort; at the same time, this can make the pressure inside the flexible joint evenly distributed, avoid scratches, pitting or spalling inside the flexible joint, and thus improve the service life of the flexible joint; By stamping the inner wall with the plurality of pressing blocks 5 multiple times and changing positions, the outer circle and the inner circle of the inner wall can be made round, thereby improving the quality of the inner wall, improving the quality of the flexible joint, and further improving the service life of the flexible joint.

[0019] Further, a limit sleeve 9 is installed at the bottom of the die holder 33 through a connecting rod 91. The limit sleeve 9 is located on the periphery of a plurality of pressing blocks 5, and the inner diameter of the limit sleeve 9 is equal to the outer diameter after the inner wall is expanded.

[0020] In one case of this embodiment, a device similar to an electromagnetic induction coil can be installed in the limit sleeve 9.

[0021] When this embodiment is actually applied, when a plurality of pressing blocks 5 stamp the inner wall, the limit sleeve 9 is located on the periphery of the inner wall. Through the restriction of the limit sleeve 9, the outer ring of the inner wall can be made rounder, thereby further effectively avoiding the gap between the inner wall and the inner side of the end of the telescopic tube when the inner wall is assembled with the end of the telescopic tube; in addition, the electromagnetic induction coil installed in the limit sleeve 9 can appropriately heat the inner wall, so that the material of the inner wall becomes softer. In this way, when a plurality of pressing blocks 5 stamp the inner wall, the inner wall expands more quickly, thereby improving the stamping and bulging efficiency. At the same time, this reduces the deformation resistance of the inner wall and effectively avoids the inner wall from cracking when being stamped and bulged, thereby reducing the processing reject rate; When the limit sleeve 9 moves downward, it can cooperate with a plurality of pressing blocks 5 to correct the position of the inner wall. After a plurality of pressing blocks 5 enter the inner wall, the inner wall is coaxial with a plurality of pressing blocks 5. In this way, it effectively avoids the situation that when some pressing blocks 5 move outward, some pressing blocks 5 first contact the inner side of the inner wall, resulting in uneven stamping deformation and uneven thickness after the inner part is stamped and bulged, thereby improving the quality of the inner wall after stamping and bulging.

[0022] As Figures 3 - 7 shown, a clamping mechanism 8 is installed on the base 6. The clamping mechanism 8 is used to clamp and fix the inner wall to be stamped. A transmission component 7 is installed on the moving frame 32 and the platform 1. The transmission component 7 is connected to the clamping mechanism 8. The transmission component 7 includes a main rack 71. The main rack 71 is fixed on the moving frame 32. The bottom end of the main rack 71 penetrates through the platform 1. A gear 72 is rotatably installed at the bottom of the platform 1. The gear 72 meshes with the main rack 71. A secondary rack 73 is connected to the clamping mechanism 8. The secondary rack 73 meshes with the gear 72.

[0023] The clamping mechanism 8 includes: A push-pull rod 81, the push-pull rod 81 is fixedly connected to the secondary rack 73, and a connecting ring 811 is arranged at the top of the push-pull rod 81; A seesaw 82, the seesaw 82 is in a scissor shape. The rotating part in the middle of the seesaw 82 is installed on the connecting ring 811. Extrusion grooves 821 are formed on both sides of the seesaw 82. A plurality of fixing plates 87 are arranged at the bottom of the base 6. The bent end of the fixing plate 87 is sleeved in the extrusion groove 821. An elastic member II 822 is connected between the two movable ends at the bottom of the seesaw 82; An outer clamping plate 83 and an inner clamping plate 84. Two movable ends at the top of the rocker plate 82 are respectively fixed with the outer clamping plate 83 and the inner clamping plate 84. A plurality of through holes 61 are formed in the top of the base 6, and the plurality of through holes 61 are arranged in a circular array. The outer clamping plate 83 and the inner clamping plate 84 pass through the through holes 61 to clamp the inner wall located on the base 6.

[0024] Guide grooves 85 are formed on both sides of the outer clamping plate 83 and the inner clamping plate 84. A plurality of guide blocks 86 are slidably installed in the guide grooves 85. A plurality of sliding grooves 62 are formed in the through holes 61, and the plurality of guide blocks 86 are slidably installed in the plurality of sliding grooves 62.

[0025] It should be noted that the inner wall moves on the base 6. After the base 6 is used for a long time, due to the wear of the inner wall on the base 6, the surface of the base 6 may become rough, resulting in unevenness on the surface of the base 6. In this way, the inner wall may shake after moving on the base 6, which may cause the inner wall to fail to move correctly under the plurality of pressing blocks 5, so that the plurality of pressing blocks 5 may squeeze the top of the inner wall and cause the inner wall to be deformed and damaged after moving down; another situation is that the inner wall may be in a slightly inclined state on the base 6 due to the unevenness of the surface of the base 6. In this way, after the plurality of pressing blocks 5 move down, due to the non-coaxiality of the plurality of pressing blocks 5 and the inner wall, when the plurality of pressing blocks 5 move outward to punch and expand the inner wall, the step or the bottom of the pressing block 5 contacts the inner side of the inner wall, which will cause the inner side of the inner wall to be deformed by force.

[0026] In one case of this embodiment, the elastic member two 822 can be a spring or other components that can elastically expand and contract.

[0027] When the moving frame 32 moves down in actual application of this embodiment, the moving frame 32 drives the main rack 71 to move down. Through the transmission of the gear 72, the driven rack 73 moves upward, which will cause the push rod 81 to move upward. The upward movement of the push rod 81 will drive the plurality of rocker plates 82 to move upward. The outer clamping plate 83 and the inner clamping plate 84 will pass through the through holes 61 and be located on the inner and outer sides of the inner wall respectively. When the rocker plate 82 moves upward, the fixing plate 87 was originally located in the inclined section of the extrusion groove 821, and at this time the fixing plate 87 slowly moves to the vertical section of the extrusion groove 821. Since the position of the fixing plate 87 remains unchanged, this will cause the rocker plate 82 to clamp inward, so that the outer clamping plate 83 and the inner clamping plate 84 move toward each other to clamp the area at the bottom of the inner wall that does not need to be expanded. At this time, the plurality of pressing blocks 5 also enter the inner wall. The plurality of groups of outer clamping plates 83 and inner clamping plates 84 clamp the inner wall, which can adjust the position of the inner wall, so that the inner wall slowly moves under the plurality of pressing blocks 5, and the inner wall is coaxial with the plurality of pressing blocks 5, thereby effectively avoiding the direct extrusion of the top or the inner side of the inner wall by the plurality of pressing blocks 5 after moving down, resulting in deformation and damage of the inner wall, and further improving the success rate of inner wall processing, processing efficiency and effect; Through the mutual cooperation of the guide groove 85, the guide block 86 and the sliding groove 62, the outer clamping plate 83 and the inner clamping plate 84 can only move vertically and horizontally during movement, thus ensuring that the outer clamping plate 83 and the inner clamping plate 84 always maintain a vertical state. Therefore, after several outer clamping plates 83 and inner clamping plates 84 clamp the inner wall, the inner wall will be in a vertical state, further effectively avoiding the situation that after several pressing blocks 5 move downward, they directly squeeze the top or the inner side of the inner wall, resulting in deformation and damage of the inner wall, improving the success rate of inner wall processing, and improving the processing efficiency and effect. The inner wall is clamped by the clamping mechanism 8, so that when several pressing blocks 5 move inward after a stamping operation, the inner wall will not be driven to move, avoiding the situation of mucosal adhesion, thus ensuring the normal completion of the multi-stamping process, and further ensuring the quality of inner wall stamping and bulging.

[0028] Furthermore, mounting holes 88 are provided on both the outer clamping plate 83 and the inner clamping plate 84. A flattening plate 89 is slidably mounted in the mounting hole 88 of the outer clamping plate 83. The top of the flattening plate 89 is in a horizontal state, and the flattening plate 89 only moves up and down. The flattening plate 89 passes through the mounting hole 88 on the inner clamping plate 84. Elastic members III 891 are installed in both the outer clamping plate 83 and the inner clamping plate 84. The top of the elastic member III 891 abuts against the bottom of the flattening plate 89.

[0029] In one case of this embodiment, the elastic member III 891 can be a spring or other components that can elastically expand and contract.

[0030] In the actual application of this embodiment, when the outer clamping plate 83 and the inner clamping plate 84 move upward, the flattening plate 89 first contacts the bottom of the inner wall. Several flattening plates 89 lift the inner wall and straighten it, making the inner wall in a vertical state. In this way, when several pressing blocks 5 move downward to squeeze the inner wall, the inner wall is in a vertical state and coaxial with several pressing blocks 5 at this time, further effectively avoiding the situation that after several pressing blocks 5 move downward, they directly squeeze the top or the inner side of the inner wall, resulting in deformation and damage of the inner wall, improving the success rate of inner wall processing, and improving the processing efficiency and effect.

[0031] As Figures 1 - 3 shown, a material guiding component 15 is installed on the platform 1, a U-shaped frame 10 is provided on the base 6. The material guiding component 15 guides several inner walls to the base 6 and is blocked by the U-shaped frame 10. A feeding plate 12 is installed on the base 6. The feeding plate 12 is located on one side of the U-shaped frame 10. A telescopic member III 121 is installed on the feeding plate 12. The feeding plate 12 pushes the inner wall on the base 6 below several pressing blocks 5. A pushing plate 13 is installed on the base 6. A telescopic member IV 131 is installed on the pushing plate 13. The pushing plate 13 pushes the inner wall after stamping and bulging down from the base 6 and drops it into the collection basket below the platform 1 through the discharge hole 16. A photoelectric switch 14 is installed on the base 6. The photoelectric switch 14 is arranged opposite to the feeding plate 12. The feeding plate 12 pushes the inner wall in the direction of the photoelectric switch 14.

[0032] In one case of this embodiment, both the third telescopic member 121 and the fourth telescopic member 131 can be cylinders, or other components capable of telescopic driving; the photoelectric switch 14 is electrically connected to the third telescopic member 121; the material guiding assembly 15 can be composed of a discharging vibrating disk and a feeding track.

[0033] In the actual application of this embodiment, the feeding plate 12 pushes the inner wall to move below several pressing blocks 5. When the inner wall contacts one side of the U-shaped frame 10, the inner wall is directly below several pressing blocks 5 at this time. Cooperating with the clamping mechanism 8 to clamp the inner wall, further making the inner wall coaxial with several pressing blocks 5, thereby further effectively avoiding the direct extrusion of the top or the inner side of the inner wall by several pressing blocks 5 after they move down, resulting in deformation and damage of the inner wall, improving the success rate of inner wall processing, and improving the processing efficiency and effect. When the inner wall contacts one side of the U-shaped frame 10, the photoelectric switch 14 is activated to cause the third telescopic member 121 to drive the feeding plate 12 to retract. Due to the arc shape of the feeding plate 12, the feeding plate 12 blocks the inner wall on the material guiding assembly 15 at this time. After the feeding plate 12 retracts, an inner wall on the material guiding assembly 15 slides onto the base 6 and is located within the U-shaped frame 10. After the previous inner wall is stamping-expanded, the pushing plate 13 pushes the stamping-expanded inner wall off the base 6 and drops it into the collection basket below the platform 1 through the discharging hole 16. The feeding plate 12 pushes the inner wall that has slid off the material guiding assembly 15 below several pressing blocks 5. In this way, the automation of loading and unloading is realized, which can improve the production capacity of the equipment, save manpower, reduce the working intensity of workers, and at the same time reduce the production cost.

[0034] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. A flanging bulging device for a high-speed stamping die, comprising a platform (1) and a mounting frame (2), characterized in that: The device also includes: A punching assembly (3), wherein the punching assembly (3) is provided with a plurality of groups, the punching assembly (3) comprising a telescopic member 1 (31), the telescopic member 1 (31) being mounted on a mounting frame (2), a moving frame (32) being mounted on an output end of the telescopic member 1 (31), a telescopic member 2 (34) being mounted on the moving frame (32), and a die base (33) being mounted on the bottom of the moving frame (32); A pressing block (5), wherein the pressing blocks (5) are provided in a plurality and arranged in an annular array, wherein the plurality of pressing blocks (5) are installed in a die base (33), wherein the die base (33) is installed with a plurality of groups of extrusion plates (51), wherein an elastic member (52) is connected between the extrusion plates (51) and the inner wall of the die base (33), and wherein the extrusion plates (51) are pressed against the outer surface of the pressing blocks (5); A punching column (4), wherein the output end of the second telescopic member (34) is provided with a punching column (4), and a conical top column (41) is provided at the bottom of the punching column (4), wherein the conical top column (41) is inserted into a conical hole formed by a plurality of pressing blocks (5), and when the conical top column (41) moves downward, the plurality of pressing blocks (5) move outward along the radial direction of the die base (33); A guide rod (53), the top of the pressing block (5) is provided with a guide rod (53), the guide rod (53) is curved, a surface of the punching column (4) is provided with a plurality of vertical grooves (42) and a plurality of oblique grooves (43), the plurality of vertical grooves (42) and the plurality of oblique grooves (43) are arranged alternately, and the plurality of vertical grooves (42) and the plurality of oblique grooves (43) are connected, and a curved portion of the guide rod (53) is sleeved in a wave groove formed by the plurality of vertical grooves (42) and the plurality of oblique grooves (43); A base (6), wherein the platform (1) is provided with a base (6), the base (6) is located below the plurality of pressing blocks (5), and an inner wall to be punched is placed on the base (6).

2. The flanging bulging device of a high-speed stamping die according to claim 1, characterized in that: A limiting sleeve (9) is installed at the bottom of the mold base (33) via a connecting rod (91), the limiting sleeve (9) is located on the periphery of a plurality of pressing blocks (5), and the inner diameter of the limiting sleeve (9) is equal to the outer diameter of the inner wall after bulging.

3. The flanging bulging device of a high-speed stamping die according to claim 1, characterized in that: A clamping mechanism (8) is installed on the base (6), and the clamping mechanism (8) is used to clamp and fix the inner wall to be punched. A transmission assembly (7) is installed on the mobile frame (32) and the platform (1), and the transmission assembly (7) is connected to the clamping mechanism (8). The transmission assembly (7) comprises a main rack (71), and the main rack (71) is fixed on the mobile frame (32). The bottom end of the main rack (71) passes through the platform (1). A gear (72) is rotatably installed at the bottom of the platform (1), and the gear (72) and the main rack (71) are meshed with each other. A slave rack (73) is connected to the clamping mechanism (8), and the slave rack (73) and the gear (72) are meshed with each other.

4. The flanging bulging device of a high-speed stamping die according to claim 3, characterized in that: The clamping mechanism (8) comprises: A push-pull rod (81), the push-pull rod (81) being fixedly connected to the secondary rack (73), and a connecting ring (811) being provided on the top of the push-pull rod (81); A seesaw (82), wherein the seesaw (82) is scissor-type, a rotating portion in the middle of the seesaw (82) is mounted on a connecting ring (811), extrusion grooves (821) are provided on both sides of the seesaw (82), a plurality of fixing plates (87) are provided at the bottom of the base (6), a bent end of the fixing plate (87) is sleeved in the extrusion groove (821), and an elastic member 2 (822) is connected between two movable ends at the bottom of the seesaw (82); An outer clamping plate (83) and an inner clamping plate (84), the two movable ends at the top of the seesaw (82) are respectively fixed with the outer clamping plate (83) and the inner clamping plate (84), the top of the base (6) is provided with a plurality of through holes (61), the plurality of through holes (61) are arranged in a circular array, and the outer clamping plate (83) and the inner clamping plate (84) pass through the through holes (61) to clamp the inner wall located on the base (6).

5. The flanging bulging device of a high-speed stamping die according to claim 4, characterized in that: Guide grooves (85) are provided on both sides of the outer clamping plate (83) and the inner clamping plate (84), and a plurality of guide blocks (86) are slidably mounted in the guide grooves (85). A plurality of slide grooves (62) are provided in the through hole (61), and a plurality of guide blocks (86) are slidably mounted in the plurality of slide grooves (62).

6. The flanging bulging device of a high-speed stamping die according to claim 5, characterized in that: The outer clamping plate (83) and the inner clamping plate (84) are both provided with mounting holes (88), a caressing plate (89) is slidably mounted in the mounting hole (88) of the outer clamping plate (83), the top of the caressing plate (89) is in a horizontal state, and the caressing plate (89) only moves up and down, the caressing plate (89) passes through the mounting hole (88) on the inner clamping plate (84), and elastic members three (891) are both installed in the outer clamping plate (83) and the inner clamping plate (84), and the top of the elastic member three (891) is against the bottom of the caressing plate (89).

7. The flanging bulging device of a high-speed stamping die according to claim 1, characterized in that: The platform (1) is provided with a material guide assembly (15), the base (6) is provided with a shaped frame (10), the material guide assembly (15) guides a plurality of inner walls to the base (6) and is blocked by the shaped frame (10), the base (6) is provided with a loading plate (12), the loading plate (12) is located on one side of the shaped frame (10), a telescopic member 3 (121) is installed on the loading plate (12), and the loading plate (12) pushes the inner wall on the base (6) toward a plurality of pressing blocks (5) A push plate (13) is mounted on the base (6) below the platform (1), and a telescopic member (131) is mounted on the push plate (13). The push plate (13) pushes the inner wall that has been stamped and expanded off the base (6) and drops it from the discharge hole (16) into a collection basket below the platform (1). A photoelectric switch (14) is mounted on the base (6), and the photoelectric switch (14) is arranged opposite to the loading plate (12). The loading plate (12) pushes the inner wall to move in the direction of the photoelectric switch (14).

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