A hot pressing forming device for metal casting processing

Abstract

The present invention discloses a hot press forming device for metal casting processing, which belongs to the technical field of metal casting processing. A hot press forming device for metal casting processing comprises a bracket, and also comprises: an upper pressure plate and a pressure plate arranged on the bracket; an extension platform is arranged on the pressure plate, a placing platform is arranged on the pressure plate, and a metal pipe is placed on the placing platform; a lifting plate is arranged at the end of the placing platform, a pressure block is arranged just above the lifting plate, and the pressure block is fixed to the bottom surface of the upper pressure plate; a first guide rod and a second guide rod are respectively fixedly connected to the pressure plate; the present invention can achieve uniform heat dissipation of the metal pipe after hot pressing, avoid large temperature differences among various parts of the pipeline, and further aggravate the generation and uneven distribution of stress.

Description

Technical Field

[0001] The invention relates to the technical field of metal casting processing, in particular to a hot pressing forming device for metal casting processing. Background Art

[0002] Metal pipe end flattening is a process that uses heat and pressure to change the shape of a pre-formed metal pipe end, usually to meet specific connection or installation requirements.

[0003] Generally, when flattening the ends of metal pipes, simultaneous hot pressing is used. This not only has high processing efficiency, but also reduces the risk of pipe deformation. However, this method is not suitable for some pipes with special shapes or requirements. For example, if one end of the pipe needs to be precisely docked with other parts, it is necessary to hot press one side first and check its shape and size before hot pressing the other side to ensure higher docking accuracy. In this case, step-by-step hot pressing is required.

[0004] When the metal pipe is flattened by hot pressing, stress will be generated inside the pipe due to the elastic and plastic deformation of the material, especially after two hot pressings. If the heat dissipation is uneven, it will cause large temperature differences in different parts of the pipe, thereby aggravating the generation and uneven distribution of stress. For hollow pipes, due to their structural characteristics, they may be more susceptible to stress problems caused by uneven heat dissipation. Summary of the invention

[0005] The purpose of the present invention is to solve the problems in the prior art and to propose a hot pressing forming device for metal casting processing.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] It includes a bracket and an upper pressure plate and a pressure-bearing component installed on the bracket, and also includes: the pressure-bearing component includes a pressure-bearing plate, an extension platform, and a placement platform, and a metal tube is arranged on the placement platform; piston cylinder 1, piston cylinder 2 and piston cylinder 3 are arranged below the pressure-bearing plate, the piston cylinder 1 and piston cylinder 2 are used to control the clamping state of the metal tube and cool the metal tube, and the piston cylinder 3 is used to support the metal tube; a suction port is provided in the circular groove of the placement platform, and upper and lower blowing nozzles are provided on both side ends of the placement platform; the tops of the piston cylinder 1 and the piston cylinder 2 are connected to an air pipe, and the two air pipes are merged together to form an air supply pipe 1, and an air intake adjustment component for adjusting the air supply state of the air supply pipe 1 is provided in the extension platform.

[0008] Preferably, a lifting plate is provided at the end of the placing table, a pressure block is provided just above the lifting plate, and the pressure block is fixed to the bottom surface of the upper pressure plate, and a limiting assembly is provided on the extension table for fixing the end of the metal tube, and a blowing port is provided at the central part of the limiting assembly, and two piston cylinders three are provided under each of the lifting plates, and the bottoms of the piston cylinder one and the piston cylinder two are respectively connected to the exhaust pipe one and the exhaust pipe two, and the other ends of the exhaust pipe one and the exhaust pipe two are respectively connected to the bottoms of the two piston cylinders three, and the pressure plate is fixedly connected with a first guide rod and a second guide rod respectively, and the first guide rod and the second guide rod are slidably connected with a sliding plate, and a first elastic assembly is provided between the sliding plate and the pressure plate, and a fixing rod is provided under the sliding plate, and the bottoms of the two fixing rods are respectively placed in the piston cylinder one and the piston cylinder two, and the bottoms of the fixing rods placed in the piston cylinder one and the piston cylinder two act as pistons. The piston cylinder three is placed just below the lifting plate, and a push rod is fixedly connected to the bottom surface of the lifting plate, and the bottom of the push rod is placed in the piston cylinder three and acts as a piston.

[0009] Preferably, a cylinder for controlling the lifting of the upper pressure plate is provided on the top of the bracket, the first guide rod and the second guide rod both pass through the upper pressure plate, and a limit block is provided at the position where the first guide rod and the second guide rod are placed above the upper pressure plate.

[0010] Preferably, a movable groove is provided inside the extension platform, an adjusting rod is slidably connected inside the movable groove, an air inlet 1 is provided inside the adjusting rod, and the air inlet 1 is communicated with the movable groove.

[0011] Preferably, the limit assembly is fixedly connected to one end of the adjusting rod placed outside the movable groove, and the limit assembly is composed of a driving part cover, a first driving unit, a mounting disk, a rotating rod, and a fixing claw. A second driving unit is provided on the mounting disk, and a threaded rod is provided in the mounting disk. The second driving unit is used to drive the threaded rod to rotate, and the fixing claw is threadedly connected to the threaded rod.

[0012] Preferably, a first gear and a second gear meshing with each other are provided in the driving part housing, the first driving unit is used to drive the first gear, and an air inlet duct 2 is opened in the driving part housing.

[0013] Preferably, an annular air duct connected to the second air inlet is also provided in the drive unit cover, two opposing air blowing ports are provided on the mounting plate, four air supply pipes are circumferentially distributed on the drive unit cover, and the annular air duct is used to supply air to the four air supply pipes.

[0014] Preferably, a fixing ring is provided on the extension platform, and the adjusting rod slides in the fixing ring. A fixing component is threadedly connected to the fixing ring and the adjusting rod. The fixing component consists of a threaded part and a movable part. A groove is provided on the movable part, and a limiting ring is rotatably connected in the groove. The threaded part is fixedly connected to the limiting ring, and a connecting plate is provided on the movable part.

[0015] Preferably, a sliding groove 1 and a sliding groove 2 are provided in the extension platform, the sliding groove 1 and the sliding groove 2 are connected, a fixing screw is inserted into the connecting plate, and the fixing screw is threadedly connected to the front end of the sliding groove 1.

[0016] Preferably, an extension rod is provided in the sliding groove one, and the extension rod is placed in one end of the sliding groove two and fixedly connected to the air intake adjustment component. A second elastic component is provided between the air intake adjustment component and the sliding groove two, and the air intake adjustment component is respectively provided with a first slot and a second slot.

[0017] Preferably, an air inlet duct three is opened in the extension platform, a diverter pipe one is provided under the extension platform, the air inlet duct three and the diverter pipe one are both connected with the sliding groove two, the air delivery pipe one is connected with the sliding groove two, the diverter pipe one is connected with the adsorption port, the air inlet duct three is connected with the movable groove, the middle part of the air inlet duct three is connected with the diverter pipe two, one end of the diverter pipe two placed outside the extension platform is connected with a blowing channel, and the blowing channel is connected with the upper blowing nozzle and the lower blowing nozzle.

[0018] Compared with the prior art, the present invention provides a hot pressing forming device for metal casting processing, which has the following beneficial effects:

[0019] 1. The hot pressing forming device for metal casting processing dissipates heat to the outside of the hot-pressed metal tube through the upper blowing nozzle and the lower blowing nozzle, and dissipates heat to the inside of the hot-pressed metal tube through the blowing port. The heat dissipation is performed synchronously to ensure uniform heat dissipation of the metal tube, avoid large temperature differences among different parts of the pipeline, and thus aggravate the generation and uneven distribution of stress.

[0020] 2. The hot pressing forming device for metal casting processing controls the opening and closing of the intake duct three and the diverter pipe one through the intake regulating component, realizes precise control at different stages, ensures the stability of the metal pipe during the hot pressing process, and ensures uniform heat dissipation of the metal pipe during the heat dissipation process.

[0021] The parts not involved in the hot pressing forming device for metal casting processing are the same as the existing technology or can be implemented by using the existing technology. The present invention can achieve uniform heat dissipation of the metal pipe after hot pressing, avoiding large temperature differences between different parts of the pipeline, thereby aggravating the generation and uneven distribution of stress. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of a hot pressing forming device for metal casting processing proposed by the present invention;

[0023] Figure 2 A front view of a hot pressing forming device for metal casting processing proposed by the present invention;

[0024] Figure 3 A side view of a hot pressing forming device for metal casting processing proposed by the present invention;

[0025] Figure 4 This is a schematic structural diagram of the bottom of a pressure plate of a hot pressing forming device for metal casting processing proposed by the present invention;

[0026] Figure 5 A cross-sectional view of a fixed component portion of a hot pressing forming device for metal casting processing proposed by the present invention;

[0027] Figure 6 A hot pressing forming device for metal casting processing proposed by the present invention Figure 5 The structural diagram of the enlarged part A in the middle;

[0028] Figure 7 The invention provides a method for preventing the explosion of a limiting component of a hot pressing forming device for metal casting processing. Figure 1 ;

[0029] Figure 8 A hot pressing forming device for metal casting processing proposed by the present invention Figure 7 The enlarged structural diagram of part B in the middle;

[0030] Fig. 9 The invention provides a method for preventing the explosion of a limiting component of a hot pressing forming device for metal casting processing. Figure 2 ;

[0031] Fig.10 A hot pressing forming device for metal casting processing proposed by the present invention Fig. 9 The enlarged structural diagram of part C in the middle;

[0032] Fig.11 A cross-sectional view of a driving part cover of a hot pressing forming device for metal casting processing proposed by the present invention;

[0033] Fig.12 A cross-sectional view of a piston cylinder 1 of a hot pressing forming device for metal casting processing proposed by the present invention;

[0034] Fig.13 A cross-sectional view of an extension table of a hot pressing forming device for metal casting processing proposed by the present invention Figure 1 ;

[0035] Fig.14 A cross-sectional view of an extension table of a hot pressing forming device for metal casting processing proposed by the present invention Figure 2 ;

[0036] Fig.15 A hot pressing forming device for metal casting processing proposed by the present invention Fig.14 The structural diagram of the enlarged portion D in the middle;

[0037] Fig.16 This is a schematic structural diagram of an air intake regulating assembly of a hot pressing forming device for metal casting processing proposed by the present invention.

[0038] In the figure: 1, bracket; 2, pressure plate; 3, cylinder; 4, upper pressure plate; 5, metal pipe; 6, first guide rod; 7, second guide rod; 8, first elastic component; 9, sliding plate; 10, fixing rod; 11, extension table; 12, placing table; 13, lifting plate; 14, limiting component; 1401, driving part cover; 1402, first driving unit; 1403, mounting plate; 1404, rotating rod; 1405, fixing claw; 15, piston cylinder 1; 16, air delivery pipe 1; 17, pressing block; 18, piston cylinder 2; 19, exhaust pipe 1; 20, exhaust pipe 2; 21, piston cylinder 3; 22, shunt pipe 1; 23, adjusting rod; 2301, air inlet 1; 24, shunt pipe 2; 2 5. Fixed component; 2501. Threaded part; 2502. Movable part; 26. Fixed ring; 27. Limiting ring; 28. Connecting plate; 29. ​​First gear; 30. Second gear; 31. Inlet duct 2; 32. Second driving unit; 33. Blowing port; 34. Air delivery pipe; 35. Threaded rod; 36. Annular air duct; 37. Push rod; 38. Adsorption port; 39. Movable groove; 40. Blowing channel; 4001. Upper blowing nozzle; 4002. Lower blowing nozzle; 41. Fixed screw; 42. Extension rod; 43. Sliding groove 1; 44. Sliding groove 2; 45. Second elastic component; 46. Inlet adjustment component; 4601. First slot; 4602. Second slot; 47. Inlet duct 3. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0040] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0041] Reference Figure 1-Figure 16 , including a bracket 1 and an upper pressure plate 4 installed on the bracket 1, a pressure-bearing component, and also including: the pressure-bearing component includes a pressure-bearing plate 2, an extension platform 11, and a placement platform 12, on which a metal tube 5 is arranged; a piston cylinder 15, a piston cylinder 2 18, and a piston cylinder 3 21 are arranged below the pressure-bearing plate 2, the piston cylinder 15 and the piston cylinder 2 18 are used to control the clamping state of the metal tube 5 and cool the metal tube 5, and the piston cylinder 3 21 is used to support the metal tube 5; the circular groove of the placement platform 12 A suction port 38 is provided, and an upper blowing nozzle 4001 and a lower blowing nozzle 4002 are provided at both sides of the placing platform 12; the tops of the piston cylinder 15 and the piston cylinder 2 18 are connected to an air pipe, and the two air pipes are combined to form an air supply pipe 16, and an air intake regulating component 46 for regulating the air supply state of the air supply pipe 16 is provided in the extension platform 11; a lifting plate 13 is provided at the end of the placing platform 12, and a pressing block 17 is provided just above the lifting plate 13, and the pressing block 17 is fixed to the bottom surface of the upper pressing plate 4, and the extension platform 11 is provided with a lifting plate 13. A limit assembly 14 is provided for fixing the end of the metal tube 5. A blowing port 33 is provided at the center of the limit assembly 14. Two piston cylinders 3 21 are provided under each lifting plate 13. The bottoms of the piston cylinders 15 and 18 are respectively connected to exhaust pipes 19 and 20. The other ends of the exhaust pipes 19 and 20 are respectively connected to the bottoms of the two piston cylinders 3 21. The pressure plate 2 is respectively fixedly connected to a first guide rod 6 and a second guide rod 7. The first guide rod 6 and the first guide rod 7 are respectively fixed to the pressure plate 2. The two guide rods 7 are both slidably connected with a sliding plate 9, a first elastic component 8 is provided between the sliding plate 9 and the pressure plate 2, a fixed rod 10 is provided below the sliding plate 9, the bottoms of the two fixed rods 10 are respectively placed in the piston cylinder 15 and the piston cylinder 2 18, and the bottoms of the fixed rods 10 placed in the piston cylinder 15 and the piston cylinder 2 18 act as pistons. The piston cylinder 3 21 is placed directly below the lifting plate 13, and a push rod 37 is fixedly connected to the bottom surface of the lifting plate 13, and the bottom of the push rod 37 is placed in the piston cylinder 3 21 to act as a piston.

[0042] In the present invention, the metal tube 5 is first placed on the placement table 12. After the metal tube 5 is fixed, the pressing block 17 is controlled to press down to perform hot pressing on one side of the end of the metal tube 5. After one side is processed, the metal tube 5 is controlled to rotate 180 degrees so that the other side of the end of the metal tube 5 is hot pressed until the processing is completed.

[0043] In one embodiment, during the first downward pressing process of the upper pressing plate 4, when the upper pressing plate 4 is pressed down and pressed against the sliding plate 9, the sliding plate 9 is pushed downward, and the first elastic component 8 is compressed at the same time, and the sliding plate 9 moves downward, so that the fixed rod 10 acts as a piston to move in the piston cylinder 1 15 and the piston cylinder 2 18, and the fixed rod 10 pushes the air inside the piston cylinder 1 15 and the piston cylinder 2 18, and the exhausted air enters the piston cylinder 3 21 through the exhaust pipe 1 19 and the exhaust pipe 2 20, and the gas entering the piston cylinder 3 21 pushes the piston in the piston cylinder 3 21, and the activity The plug is connected to the bottom of the lifting plate 13, so that the piston in the piston cylinder 3 21 exerts a lifting force on the lifting plate 13, thereby supporting the lower end of the metal tube 5 to be hot-pressed; at the same time, the fixing rod 10 acts as a piston to move downward in the piston cylinder 1 15 and the piston cylinder 2 18, and negative pressure can be formed on the upper part of the piston cylinder 1 15 and the piston cylinder 2 18. The upper part of the piston cylinder 1 15 and the piston cylinder 2 18 is connected to the suction port 38. In this way, through the negative pressure effect, the suction port 38 can fix the metal tube 5 from below, further enhancing the stability of the metal tube 5;

[0044] During the first upward movement of the upper pressing plate 4, the lifting plate 13 moves downward to reset. Due to the hot pressing, the metal tube 5 has been partially deformed at this time, and the metal tube 5 is tightly attached to the placement table 12 as a whole. The upper pressing plate 4 moves upward, and the fixing rod 10 acts as a piston to move upward in the piston cylinder 15 and the piston cylinder 2 18 to expel the air on the upper part of the piston cylinder 15 and the piston cylinder 2 18. The expelled air pushes the metal tube 5 through the suction port 38, so that the metal tube 5 is loosened, so that it is easier to rotate the metal tube 5.

[0045] During the second downward pressing process of the upper pressing plate 4, similar to the first downward movement, it should be noted that since one side of the metal tube 5 has been hot-pressed into a flat shape, the lifting plate 13 can better support one end of the metal tube 5 plane to avoid bending and damage of the metal tube 5 due to uneven force when the other side is hot-pressed;

[0046] During the three movements of the upper pressing plate 4, the air inlet regulating assembly 46 adjusts the air outlet 33, the upper blowing nozzle 4001 and the lower blowing nozzle 4002 to a closed state;

[0047] However, during the second downward pressing process of the upper pressing plate 4, both sides of the metal tube 5 are processed. At this time, the air intake regulating component 46 adjusts the blowing port 33, the upper blowing nozzle 4001 and the lower blowing nozzle 4002 to the open state, and the suction port 38 is closed. In this way, the upper pressing plate 4 moves upward, and the fixed rod 10 acts as a piston to move upward in the piston cylinder 15 and the piston cylinder 2 18 to expel the air on the upper part of the piston cylinder 15 and the piston cylinder 2 18. The expelled air is discharged through the blowing port 33, the upper blowing nozzle 4001 and the lower blowing nozzle 4002. The blowing port 33 blows air to the inside of the metal tube 5 to dissipate heat, and the upper blowing nozzle 4001 and the lower blowing nozzle 4002 blow air to the outside of the metal tube 5 to dissipate heat. In this way, the cooling effect of the inside and outside of the metal tube 5 after hot pressing is consistent, and the temperature difference of each part of the metal tube 5 is avoided, thereby aggravating the problem of stress generation and uneven distribution.

[0048] The first elastic component 8 drives the piston inside the piston cylinder 15 and the piston cylinder 18 to reset, and the reset process is carried out smoothly (or first quickly and then slowly), so that the metal tube 5 can be cooled within a certain period of time. At the same time, the internal space of the piston cylinder 15 and the piston cylinder 18 is large, which can store more gas, and the diameters of the blowing port 33, the upper blowing nozzle 4001, and the lower blowing nozzle 4002 are much smaller than those of the piston cylinder 15 and the piston cylinder 18, thereby achieving long-term heat dissipation.

[0049] Reference Figure 1-Figure 16 A cylinder 3 for controlling the lifting of the upper pressing plate 4 is provided on the top of the bracket 1. The first guide rod 6 and the second guide rod 7 both penetrate the upper pressing plate 4. A limit block is provided at the position where the first guide rod 6 and the second guide rod 7 are placed above the upper pressing plate 4. A movable groove 39 is provided inside the extension platform 11, and an adjusting rod 23 is slidably connected in the movable groove 39. An air inlet 2301 is provided inside the adjusting rod 23, and the air inlet 2301 is communicated with the movable groove 39.

[0050] In the present invention, through the guiding effect of the first guide rod 6 and the second guide rod 7, the cylinder 3 controls the upper pressing plate 4 to press down and can be lifted and lowered vertically along a straight line, so that the pressing block 17 is more stable when hot pressing the metal tube 5, and the metal tube 5 has a good forming effect and a high processing yield.

[0051] The adjusting rod 23 slides in the movable groove 39. After the metal tube 5 to be hot-pressed is placed on the placing table 12, a fixing kit can be added to the upper part of the metal tube 5 to fix the metal tube 5. Specifically, it can be a pressing plate with a curvature similar to that of the metal tube 5, which is covered on the metal tube 5. The pressing plate can be fixed by bolts. At the same time, the metal tube 5 can also be fixed on one end of the lifting plate 13. Specifically, the plate is pressed against the edge of the metal tube 5 to apply a force toward the extension table 11 to the edge of the metal tube 5.

[0052] In order to further fix the metal tube 5 and prevent the metal tube 5 from rotating, after the end of the metal tube 5 is fixed, the position of the adjusting rod 23 is adjusted so that the limiting assembly 14 abuts against the end of the metal tube 5 .

[0053] Reference Figure 1-Figure 16 The limit assembly 14 is fixedly connected to one end of the adjusting rod 23 placed outside the movable groove 39. The limit assembly 14 is composed of a driving part cover 1401, a first driving unit 1402, a mounting disk 1403, a rotating rod 1404, and a fixing claw 1405. A second driving unit 32 is provided on the mounting disk 1403, and a threaded rod 35 is provided in the mounting disk 1403. The second driving unit 32 is used to drive the threaded rod 35 to rotate, and the fixing claw 1405 is threadedly connected to the threaded rod 35.

[0054] In the present invention, two fixing claws 1405 are provided for fixing the metal pipe 5 inside. The second driving unit 32 drives the threaded rod 35 to rotate. The threaded rod 35 is a bidirectional screw. The two fixing claws 1405 are respectively threadedly connected to the screws of two thread rotation directions. In this way, when the threaded rod 35 is rotated, the two fixing claws 1405 make relative movements towards or away from each other, thereby fixing the metal pipe 5 from the inside of the pipe.

[0055] Reference Figure 1-Figure 16 A first gear 29 and a second gear 30 meshing with each other are provided in the driving part housing 1401, and the first driving unit 1402 is used to drive the first gear 29. An air inlet 2 31 is provided in the driving part housing 1401; an annular air duct 36 connected to the air inlet 2 31 is also provided in the driving part housing 1401, and two opposing air ports 33 are provided on the mounting plate 1403. Four air supply pipes 34 are circumferentially distributed on the driving part housing 1401, and the annular air duct 36 is used to supply air to the four air supply pipes 34.

[0056] In the present invention, the first driving unit 1402 drives the first gear 29 to rotate, and the first gear 29 drives the second gear 30 to rotate. The two ends of the rotating rod 1404 are respectively fixedly connected to the second gear 30 and the mounting plate 1403, so that when the second gear 30 rotates, the mounting plate 1403 rotates synchronously;

[0057] After the metal tube 5 is placed on the placement table 12 and fixed, the two opposing air blowing ports 33 on the mounting plate 1403 are aligned with the two opposing air supply pipes 34 respectively, and the remaining two opposing air supply pipes 34 are placed in the grooves on the back of the mounting plate 1403. The aligned air blowing ports 33 and air supply pipes 34 are connected, and the air inlet duct 2 31 is used to supply air to the annular air duct 36, and the annular air duct 36 supplies air to the four air supply pipes 34.

[0058] Reference Figure 1-Figure 16, a fixing ring 26 is provided on the extension platform 11, and the adjusting rod 23 slides in the fixing ring 26. The fixing assembly 25 is threadedly connected to the fixing ring 26 and the adjusting rod 23. The fixing assembly 25 is composed of a threaded portion 2501 and a movable portion 2502. A groove is provided on the movable portion 2502, and a limit ring 27 is rotatably connected in the groove. The threaded portion 2501 is fixedly connected to the limit ring 27, and a connecting plate 28 is provided on the movable portion 2502; a sliding groove 1 43 and a sliding groove 2 44 are provided in the extension platform 11, and the sliding groove 1 43 and the sliding groove 2 44 are connected. A fixing screw 41 is inserted into the connecting plate 28, and the fixing screw 41 is threadedly connected to the front end of the sliding groove 1 43; an extension rod 42 is provided in the sliding groove 1 43, and the extension rod 42 is placed on the sliding groove 1 One end of the second groove 44 is fixedly connected to the air intake adjustment component 46, and a second elastic component 45 is provided between the air intake adjustment component 46 and the second sliding groove 44. The air intake adjustment component 46 is respectively provided with a first slot 4601 and a second slot 4602; an air intake duct three 47 is provided in the extension platform 11, and the air intake duct three 47 and the diverter pipe one 22 are both connected to the second sliding groove 44, the air supply pipe one 16 is connected to the second sliding groove 44, the diverter pipe one 22 is connected to the adsorption port 38, the air intake duct three 47 is connected to the movable groove 39, the middle part of the air intake duct three 47 is connected to the diverter pipe two 24, and one end of the diverter pipe two 24 placed outside the extension platform 11 is connected to the blowing channel 40, and the blowing channel 40 is connected to the upper blowing nozzle 4001 and the lower blowing nozzle 4002.

[0059] In the present invention, during the first downward pressing process of the upper pressure plate 4 controlled by the cylinder 3, when the upper pressure plate 4 is pressed down and pressed against the sliding plate 9, the sliding plate 9 is pushed downward, and the first elastic component 8 is compressed at the same time, and the sliding plate 9 moves downward, so that the fixed rod 10 acts as a piston to move in the piston cylinder 1 15 and the piston cylinder 2 18, and the fixed rod 10 pushes out the air inside the piston cylinder 1 15 and the piston cylinder 2 18, and the exhausted air enters the piston cylinder 3 21 through the exhaust pipe 1 19 and the exhaust pipe 2 20, and the gas entering the piston cylinder 3 21 pushes the push rod 37 in the piston cylinder 3 21 to move upward, so that the push rod 37 lifts the lifting plate 13. force, thereby supporting the lower end of the metal tube 5 to be hot-pressed; at the same time, the fixing rod 10 acts as a piston to move downward in the piston cylinder 15 and the piston cylinder 2 18, and negative pressure can be formed on the upper part of the piston cylinder 15 and the piston cylinder 2 18. The upper part of the piston cylinder 15 and the piston cylinder 2 18 is connected to the gas pipe 16, and the gas pipe 16 is connected to the shunt pipe 1 22, and the shunt pipe 1 22 is connected to the adsorption port 38. In this way, through the negative pressure, the adsorption port 38 can adsorb and fix the metal tube 5 from below, so that when the pressing block 17 hot presses the metal tube 5, the stability of the metal tube 5 is further enhanced;

[0060] After the hot pressing of one side of the metal tube 5 is completed, during the first upward movement of the upper pressing plate 4, the lifting plate 13 moves down and resets. Due to the hot pressing, the metal tube 5 has been partially deformed at this time, and the metal tube 5 is tightly attached to the placement table 12 as a whole. The upper pressing plate 4 moves up, and the fixed rod 10 acts as a piston to move upward in the piston cylinder 15 and the piston cylinder 2 18 to expel the air on the upper part of the piston cylinder 15 and the piston cylinder 2 18. The expelled air pushes the metal tube 5 through the suction port 38, so that the metal tube 5 is loosened, so that it is easier to rotate the metal tube 5.

[0061] During the second downward pressing process of the upper pressing plate 4, similar to the first downward movement, it should be noted that since one side of the metal tube 5 has been hot-pressed into a flat shape, the lifting plate 13 can better support one end of the metal tube 5 plane to avoid bending and damage of the metal tube 5 due to uneven force when the other side is hot-pressed;

[0062] During the three movements of the upper pressure plate 4, the air inlet adjustment component 46 adjusts the blowing port 33, the upper blowing nozzle 4001 and the lower blowing nozzle 4002 to a closed state. Specifically, after the end of the metal tube 5 is initially fixed by the adjusting rod 23, the adjusting rod 23 needs to be fixed. The fixing ring 26 and the adjusting rod 23 are both provided with threads. By rotating the fixing component 25, the threaded portion 2501 is respectively connected with the fixing ring 26 and the adjusting rod 23 by thread, and then the adjusting rod 23 is fixed. The fixing screw 41 is inserted into the sliding groove 43. In this way, when the fixing component 25 is rotated, the fixing component 25 can be tightened smoothly due to the limitation of the fixing screw 41 on the horizontal or vertical direction. In the process of the threaded portion 2501 being respectively threaded with the fixing ring 26 and the adjusting rod 23, there will be no slipping, dislocation, etc. After the adjusting rod 23 is fixed, the fixing screw 41 is threaded into the sliding groove 43, which can further fix the adjusting rod 23. At the same time, since the fixing screw 41 penetrates into the sliding groove 1 43, the fixing screw 41 will squeeze the extension rod 42, and the extension rod 42 pushes the air intake adjustment component 46, so that the second slot 4602 comes to the air intake duct 3 47 and the diverter pipe 1 22, and the second slot 4602 blocks the air intake duct 3 47 to prevent the gas from entering the air intake duct 3 47. Under the limitation of the second slot 4602, the gas in the air delivery pipe 16 can only enter the diverter pipe 1 22 or the diverter pipe 1 through the second slot 4602. The gas in the tube 1 22 enters the gas delivery tube 1 16 under the action of negative pressure; the fixing screw 41 is loosened and is no longer threadedly connected to the sliding groove 1 43. Since the extension rod 42 loses the squeezing of the fixing screw 41, under the action of the second elastic component 45, the first slot 4601 of the air intake adjustment component 46 comes to the air intake duct 3 47 and the diverter tube 1 22. The first slot 4601 blocks the diverter tube 1 22 to prevent the gas from entering the diverter tube 1 22. The gas can only enter the air intake duct 3 47.

[0063] Since there are four air delivery pipes 34, multi-angle hot pressing can be achieved, not just limited to two-side hot pressing, and only two of the four air delivery pipes 34 are connected to the air blowing port 33, and the other two slide in the groove of the mounting plate 1403, which can make the rotation between the mounting plate 1403 and the driving part housing 1401 more stable;

[0064] However, during the second downward pressing process of the upper pressure plate 4, both sides of the metal tube 5 are processed. At this time, the air intake adjustment component 46 adjusts the blowing port 33, the upper blowing nozzle 4001 and the lower blowing nozzle 4002 to an open state, and the suction port 38 is closed. In this way, the upper pressure plate 4 moves upward, and the fixed rod 10 acts as a piston to move upward in the piston cylinder 15 and the piston cylinder 2 18 to expel the air on the upper part of the piston cylinder 15 and the piston cylinder 2 18, and the expelled air is discharged through the blowing port 33, the upper blowing nozzle 4001 and the lower blowing nozzle 4002. The blowing port 33 blows air to the inside of the metal tube 5 to dissipate heat, and the upper blowing nozzle 4001 and the lower blowing nozzle 4002 blow air to the outside of the metal tube 5 to dissipate heat. In this way, the cooling effect on the inside and outside of the metal tube 5 after hot pressing is consistent, avoiding large temperature differences among the parts of the metal tube 5, thereby aggravating the problem of stress generation and uneven distribution.

[0065] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A hot pressing forming device for metal casting processing, comprising a bracket (1), an upper pressing plate (4) mounted on the bracket (1), and a pressure bearing component, characterized in that: Also includes: The pressure-bearing assembly comprises a pressure-bearing plate (2), an extension platform (11), and a placement platform (12); a metal tube (5) is provided on the placement platform (12); A piston cylinder 1 (15), a piston cylinder 2 (18) and a piston cylinder 3 (21) are provided below the pressure plate (2); the piston cylinder 1 (15) and the piston cylinder 2 (18) are used to control the clamping state of the metal tube (5) and to cool the metal tube (5); and the piston cylinder 3 (21) is used to support the metal tube (5); A suction port (38) is provided in the circular groove of the placement platform (12), and an upper blowing nozzle (4001) and a lower blowing nozzle (4002) are provided at both side ends of the placement platform (12); The tops of the piston cylinder 1 (15) and the piston cylinder 2 (18) are both connected to an air pipe, and the two air pipes are combined to form an air supply pipe 1 (16). The extension platform (11) is provided with an air intake adjustment component (46) for adjusting the air supply state of the air supply pipe 1 (16); A lifting plate (13) is provided at the end of the placing platform (12), and a pressure block (17) is provided directly above the lifting plate (13). The pressure block (17) is fixed to the bottom surface of the upper pressure plate (4). A limiting assembly (14) is provided on the extension platform (11) for fixing the end of the metal tube (5). A blowing port (33) is provided at the center of the limiting assembly (14). Two piston cylinders (21) are provided under each lifting plate (13). The bottoms of the piston cylinders (15) and (18) are respectively connected to exhaust pipes (19) and (20). The other ends of the exhaust pipes (19) and (20) are respectively connected to the bottoms of the two piston cylinders (21). A first guide rod (6) and a second guide rod (7) are fixedly connected, and a sliding plate (9) is slidably connected to the first guide rod (6) and the second guide rod (7). A first elastic component (8) is provided between the sliding plate (9) and the pressure plate (2). A fixed rod (10) is provided below the sliding plate (9). The bottoms of the two fixed rods (10) are respectively placed in the piston cylinder one (15) and the piston cylinder two (18), and the bottoms of the fixed rods (10) placed in the piston cylinder one (15) and the piston cylinder two (18) act as pistons. The piston cylinder three (21) is placed directly below the lifting plate (13). The bottom surface of the lifting plate (13) is fixedly connected to a push rod (37), and the bottom of the push rod (37) is placed in the piston cylinder three (21) and acts as a piston. A movable groove (39) is provided inside the extension platform (11), an adjusting rod (23) is slidably connected inside the movable groove (39), an air inlet 1 (2301) is provided inside the adjusting rod (23), and the air inlet 1 (2301) is connected to the movable groove (39); The limit assembly (14) is fixedly connected to one end of the adjustment rod (23) disposed outside the movable groove (39); the limit assembly (14) is composed of a drive portion cover (1401), a first drive unit (1402), a mounting plate (1403), a rotating rod (1404), and a fixing claw (1405); a second drive unit (32) is provided on the mounting plate (1403); a threaded rod (35) is provided in the mounting plate (1403); the second drive unit (32) is used to drive the threaded rod (35) to rotate; and the fixing claw (1405) is threadedly connected to the threaded rod (35).

2. A hot press forming device for metal casting processing according to claim 1, characterized in that: A cylinder (3) for controlling the lifting of the upper pressing plate (4) is provided at the top of the bracket (1); the first guide rod (6) and the second guide rod (7) both pass through the upper pressing plate (4); and a limit block is provided at the position where the first guide rod (6) and the second guide rod (7) are placed above the upper pressing plate (4).

3. A hot press forming device for metal casting processing according to claim 1, characterized in that: A first gear (29) and a second gear (30) meshing with each other are provided in the driving portion housing (1401); the first driving unit (1402) is used to drive the first gear (29); and a second air inlet (31) is provided in the driving portion housing (1401).

4. A hot press forming device for metal casting processing according to claim 3, characterized in that: The drive unit housing (1401) is further provided with an annular air duct (36) connected to the second air inlet duct (31); the mounting plate (1403) is provided with two opposing air blowing ports (33); the drive unit housing (1401) is provided with four air supply pipes (34) distributed in a circular pattern; the annular air duct (36) is used to supply air to the four air supply pipes (34).

5. A hot press forming device for metal casting processing according to claim 1, characterized in that: The extension platform (11) is provided with a fixing ring (26), the adjusting rod (23) slides in the fixing ring (26), the fixing ring (26) and the adjusting rod (23) are both threadedly connected with a fixing assembly (25), the fixing assembly (25) is composed of a threaded portion (2501) and a movable portion (2502), the movable portion (2502) is provided with a groove, a limit ring (27) is rotatably connected in the groove, the threaded portion (2501) is fixedly connected to the limit ring (27), and a connecting plate (28) is provided on the movable portion (2502).

6. A hot press forming device for metal casting processing according to claim 5, characterized in that: The extension platform (11) is provided with a first sliding groove (43) and a second sliding groove (44), the first sliding groove (43) and the second sliding groove (44) are connected to each other, a fixing screw (41) is inserted into the connecting plate (28), and the fixing screw (41) is threadedly connected to the front end of the first sliding groove (43).

7. A hot press forming device for metal casting processing according to claim 6, characterized in that: An extension rod (42) is provided in the first sliding groove (43); one end of the extension rod (42) is placed in the second sliding groove (44) and fixedly connected to an air intake adjustment component (46); a second elastic component (45) is provided between the air intake adjustment component (46) and the second sliding groove (44); and a first slot (4601) and a second slot (4602) are respectively provided on the air intake adjustment component (46).

8. A hot press forming device for metal casting processing according to claim 7, characterized in that: An air inlet duct three (47) is provided in the extension platform (11), a diverter pipe one (22) is provided below the extension platform (11), the air inlet duct three (47) and the diverter pipe one (22) are both connected to the sliding groove two (44), the air delivery pipe one (16) is connected to the sliding groove two (44), the diverter pipe one (22) is connected to the suction port (38), the air inlet duct three (47) is connected to the movable groove (39), the middle part of the air inlet duct three (47) is connected to the diverter pipe two (24), one end of the diverter pipe two (24) located outside the extension platform (11) is connected to the blowing channel (40), and the blowing channel (40) is connected to the upper blowing nozzle (4001) and the lower blowing nozzle (4002).

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