A forging die for automotive intake and exhaust connection flanges

Abstract

This invention discloses a forging die for automotive intake and exhaust flanges, relating to the field of flange forging technology. The invention includes a base, inside which is an internal adjustment assembly. Airflow is pumped into a receiving block (II) via an air pump. The airflow passes through the receiving block and enters the interior of a telescopic tube. As the airflow continues, the internal air pressure of the telescopic tube gradually increases, causing the tube to extend. This extension drives two sets of telescopic blocks to extend outwards simultaneously, stretching the springs and causing the telescopic blocks to engage with the bottom of multiple sets of adjusting rings. This assembly effectively avoids the problem of the forging die being unadjustable before flange forging, allowing for adjustment of the flange diameter, opening diameter, and neck depth. Simultaneously, it improves the versatility of the forging die, reduces limitations during flange forging, and allows for fine-tuning of the forging die according to production needs during actual use, thereby reducing flange forging costs.

Description

Technical Field

[0001] This invention relates to the field of flange forging technology, and specifically to a forging die for an automotive intake and exhaust connection flange. Background Technology

[0002] As the connecting component between the engine's intake and exhaust pipes, the intake and exhaust flanges typically withstand high temperatures, pressures, and vibrations. Therefore, strict requirements are placed on their mechanical properties and durability during design and manufacturing. To improve the flange's strength, extend its service life, and ensure connection reliability, traditional casting processes have been gradually replaced by forging processes. Forging processes have advantages such as improving material density and strengthening the metal microstructure, which can significantly improve the mechanical properties of the flange, especially in terms of compressive strength, corrosion resistance, and high-temperature resistance. Therefore, high-precision forging dies have been developed to meet the production needs of automotive intake and exhaust flanges, enabling efficient and large-scale production of flange components.

[0003] A Chinese patent (publication number: CN117000937B) discloses a forging die for necked flanges. This device presses the blank tightly within the cavity using a forging head, preventing the blank from jumping out of the die during forging and thus improving the stability of the blank. This results in improved quality of the formed necked flange forging. However, before practical use, this device cannot modify the forging specifications of the forging die, limiting its ability to forge only a single type of flange. It cannot reasonably adjust the forging specifications according to production needs, increasing the limitations of the forging die. Furthermore, due to different flange specifications, more types of forging dies need to be manufactured, thus increasing production costs. Summary of the Invention

[0004] The purpose of this invention is to solve the above problems by providing a forging die for automotive intake and exhaust connection flanges.

[0005] To achieve the above objectives, the present invention specifically adopts the following technical solution:

[0006] A forging mold for an automotive intake and exhaust flange includes a base. An internal adjustment assembly is provided inside the base. The internal adjustment assembly includes an adjustment ring, a telescopic block, a fixing plate, a receiving seat, a second receiving block, an air pump, a first hydraulic rod, a telescopic tube, and a spring. The receiving seat is fixedly connected to the base, the air pump is fixedly connected to the receiving seat, the second receiving block is fixedly connected to the air pump, one end of the telescopic tube is fixedly connected to the second receiving block, and the other end of the telescopic tube is fixedly connected to the telescopic block. The telescopic block is fixedly connected to the second receiving block, and the other end of the spring is fixedly connected to the telescopic block. The fixing plate is fixedly connected to the second receiving block and fits against the telescopic block. The first hydraulic rod is fixedly connected to the receiving seat, and the output end of the first hydraulic rod is fixedly connected to the fixing plate. The adjustment ring fits against the base.

[0007] The base is equipped with an external adjustment assembly, which includes an adjustment gear, a toothed plate, and a hydraulic rod.

[0008] Furthermore, the adjusting gear is rotatably connected to the base, the second hydraulic rod is fixedly connected to the base, the toothed plate meshes with the adjusting gear, the toothed plate is slidably connected to the base, the second hydraulic rod is fixedly connected to the base, and the second hydraulic rod and the toothed plate are located on the same vertical plane.

[0009] Furthermore, the surface of the adjusting gear is engaged with a locking tooth, and both the upper and lower surfaces of the locking tooth are fixedly connected to a limiting block, which is slidably inserted into the base.

[0010] Furthermore, the adjusting ring has two sets of mounting holes inside, and a fixing rod is fixedly connected to the inner wall of each set of mounting holes. An anti-stick plate is attached to the upper surface of the adjusting ring, the anti-stick plate is attached to the inner wall of the mounting hole, and the anti-stick plate is engaged with the fixing rod.

[0011] Furthermore, two sets of columns are fixedly installed on the upper surface of the base, and a fixing block is fixedly connected to the upper end of each set of columns. A connecting block is fixedly connected to the surface of the base, and the connecting block is fixedly connected to the fixing block.

[0012] Furthermore, a bracket is fixedly installed on the lower surface of the fixing block, a forging hammer is attached to the lower surface of the bracket, a receiving block 1 is fixedly connected to the upper surface of the forging hammer, and two sets of locking blocks 2 are fixedly connected to the surface of the receiving block 1, both sets of locking blocks 2 are attached to the inner wall of the bracket.

[0013] Furthermore, a driven gear is fixedly mounted on the surface of the forging hammer, a servo motor is fixedly mounted on the upper surface of the bracket, and a driving gear is fixedly connected to the output shaft of the servo motor, the driving gear meshing with the forging hammer.

[0014] Furthermore, a power unit is fixedly installed on the upper surface of the fixing block, and multiple sets of locking blocks are fixedly connected to the surface of the receiving block, with each set of locking blocks fitting against the inner wall of the output end of the power unit.

[0015] Furthermore, a limiting rod is fixedly connected to the lower surface of the adjusting ring, and multiple sets of limiting blocks are slidably connected inside the limiting rod. The limiting rod is slidably connected to the base.

[0016] Furthermore, a controller is fixedly mounted on the surface of the base.

[0017] The beneficial effects of this invention are as follows:

[0018] 1. When adjusting the mold specifications, this invention uses an air pump to introduce airflow into the receiving block two. The airflow passes through the receiving block two and enters the telescopic tube. As the air pump continues to supply air, the air pressure inside the telescopic tube gradually increases, causing the telescopic tube to extend. This extension of the telescopic tube drives two sets of telescopic blocks to extend outward simultaneously, stretching the spring and causing the telescopic blocks to contact the bottom of multiple sets of adjusting rings. Hydraulic rod one is then activated, causing the fixed plate, receiving block two, telescopic blocks, and multiple sets of adjusting rings to move vertically upward, thereby adjusting the diameter of the forged flange. Rotating the adjusting gear drives the toothed plate to move horizontally, causing the bottom surface of the toothed plate to contact the output end of hydraulic rod two. Continuing to rotate the gear further adjusts the position. The gears cause the toothed plate to engage with the bottom surface of multiple sets of adjusting rings. Activating the second hydraulic rod causes the toothed plate and the adjusting rings to move vertically upwards, thereby adjusting the diameter of the forged flange. The height difference created by the vertical upward movement of the inner and outer adjusting components adjusts whether the flange has a neck and the neck depth. This component effectively avoids the problem of the forging die being unadjustable before flange forging, achieving the effect of adjusting the diameter, caliber, and neck depth of the forged flange. Simultaneously, it improves the versatility of the forging die, reduces limitations during flange forging, and allows for fine-tuning of the forging die according to production needs during actual use, thus reducing the forging cost of the flange.

[0019] 2. When replacing the forging hammer, the present invention first places the forging hammer at the bottom of the support, rotates the forging hammer so that the second locking block, which is fixedly connected to the surface of the locking block one, rotates to the inner wall of the support, so that the driven gear meshes with the driving gear. Start the power machine and gradually bring the output end of the power machine into contact with the surface of the receiving block one. When the output end of the power machine is in contact with the surface of the support, start the servo motor, which drives the driving gear to rotate. The driven gear meshing with the surface of the driving gear drives the forging hammer to rotate with the driving gear. This causes the multiple sets of locking blocks one, which are fixedly connected to the surface of the receiving block one, to be in contact with the inner wall of the output end of the power machine. At the same time, the second locking block disengages from the inner wall of the support, allowing the forging hammer to move vertically with the power machine. Thus, the flange is forged by the forging hammer. The design of this component effectively avoids the problem of not being able to disassemble and assemble the forging hammer during flange forging. It can achieve the effect of replacing the forging hammer according to the change of the mold. At the same time, it improves the efficiency of flange forging and reduces mold wear. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is the present invention. Figure 1 Right view partial structural diagram;

[0022] Figure 3 This is the present invention. Figure 2 Top view of the internal structure;

[0023] Figure 4 This is the present invention. Figure 1 Top view of the structural diagram;

[0024] Figure 5 This is the present invention. Figure 4 A schematic diagram of the structure viewed from below;

[0025] Figure 6 This is the present invention. Figure 5 View of the internal structure diagram from the front;

[0026] Figure 7 This is the present invention. Figure 6 A schematic diagram of the partial structure (view from the front);

[0027] Figure 8 This is the present invention. Figure 7 A schematic diagram of the internal adjustment component structure is shown in the front view.

[0028] Reference numerals: 1. Base; 11. Column; 12. Connecting block; 13. Bracket; 14. Fixing block; 15. Power unit; 16. Controller; 2. Driven gear; 21. Forging hammer; 22. Drive gear; 23. Servo motor; 24. Support block one; 25. Locking block one; 26. Locking block two; 3. Internal adjustment assembly; 31. Adjusting ring; 32. Telescopic block; 33. Fixing plate; 34. Support seat; 35. Support block two; 36. Air pump; 37. Hydraulic rod one; 38. Telescopic tube; 39. Spring; 4. Fixing rod; 41. Mounting hole; 42. Anti-stick plate; 5. External adjustment assembly; 51. Limiting block one; 52. Locking tooth; 53. Adjusting gear; 54. Tooth plate; 55. Hydraulic rod two; 56. Limiting rod; 57. Limiting block two. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0030] Example 1, as Figures 1-8 As shown, a forging die for an automotive intake and exhaust flange includes a base 1. An internal adjustment assembly 3 is disposed inside the base 1. The internal adjustment assembly 3 includes an adjustment ring 31, a telescopic block 32, a fixing plate 33, a receiving seat 34, a second receiving block 35, an air pump 36, a hydraulic rod 37, a telescopic tube 38, and a spring 39. The receiving seat 34 is fixedly connected to the base 1, the air pump 36 is fixedly connected to the receiving seat 34, the second receiving block 35 is fixedly connected to the air pump 36, and one end of the telescopic tube 38 is connected to the second receiving block. 35 is fixedly connected; the other end of the telescopic tube 38 is fixedly connected to the telescopic block 32; the telescopic block 32 is fixedly connected to the second receiving block 35; one end of the spring 39 is fixedly connected to the second receiving block 35; the other end of the spring 39 is fixedly connected to the telescopic block 32; the fixed plate 33 is fixedly connected to the second receiving block 35; the fixed plate 33 is in contact with the telescopic block 32; the hydraulic rod 37 is fixedly connected to the receiving seat 34; the output end of the hydraulic rod 37 is fixedly connected to the fixed plate 33; and the adjusting ring 31 is in contact with the base 1.

[0031] The base 1 is equipped with an external adjustment assembly 5, which includes an adjustment gear 53, a toothed plate 54, and a hydraulic rod 55.

[0032] When forging a flange, the flange diameter, orifice, and neck depth need to be adjusted according to usage requirements to meet different needs. When adjusting the mold specifications, air is introduced into the receiving block 35 through the air pump 36. The airflow enters the telescopic tube 38 through the receiving block 35. As the air pump 36 continues to supply air, the air pressure inside the telescopic tube 38 gradually increases, causing the telescopic tube 38 to extend. The extension of the telescopic tube 38 drives the two sets of telescopic blocks 32 to extend outward simultaneously, causing the spring 39 to stretch. This causes the telescopic blocks 32 to fit against the bottom of the multiple sets of adjusting rings 31. The hydraulic rod 37 is then activated, which drives the fixed plate 33, receiving block 35, telescopic blocks 32, and multiple sets of adjusting rings 31 to move vertically upward, thereby adjusting the diameter of the forged flange.

[0033] Example 2, as Figure 5 , Figure 6 As shown, based on the above embodiment, it further includes: an adjusting gear 53 rotatably connected to the base 1; a hydraulic rod 55 fixedly connected to the base 1; a toothed plate 54 meshing with the adjusting gear 53; a sliding connection between the toothed plate 54 and the base 1; a hydraulic rod 55 fixedly connected to the base 1; the hydraulic rod 55 and the toothed plate 54 located on the same vertical plane; a retaining tooth 52 meshing on the surface of the adjusting gear 53; and limit blocks 51 fixedly connected to both the upper and lower surfaces of the retaining tooth 52. Limit blocks 51 are slidably inserted into the base 1. By rotating the adjusting gear 53, the toothed plate 54 is driven to move horizontally, causing the bottom surface of the toothed plate 54 to contact the output end of the hydraulic rod 55. Further rotation and adjustment... Gear 53 causes the toothed plate 54 to fit against the bottom surface of multiple sets of adjusting rings 31. Hydraulic rod 55 is activated, which drives the toothed plate 54 and multiple sets of adjusting rings 31 to move vertically upward, thereby adjusting the diameter of the forged flange. After the toothed plate 54 is adjusted, the two sets of limiting blocks 51 are engaged with the inside of the base 1, so that the locking teeth 52 between the two sets of limiting blocks 51 engage with the adjusting gear 53, thereby limiting the toothed plate 54 and preventing the toothed plate 54 from shifting during use. The height difference generated by the vertical upward movement of the inner adjusting component 3 and the outer adjusting component 5 is used to adjust whether the flange has a neck and the neck depth.

[0034] Example 3, as Figure 4As shown, based on the above embodiment, it also includes two sets of mounting holes 41 inside the adjusting ring 31. The inner walls of the two sets of mounting holes 41 are fixedly connected to fixing rods 4. An anti-stick plate 42 is attached to the upper surface of the adjusting ring 31. The anti-stick plate 42 is attached to the inner wall of the mounting hole 41 and is engaged with the fixing rod 4. After the mold specifications are adjusted, according to the height of each set of adjusting rings 31, the anti-stick plate 42 of the same specification is inserted into the inner wall of the mounting hole 41, thereby installing the anti-stick plate 42 onto the upper surface of the adjusting ring 31. Since there are gaps between each set of adjusting rings 31, the anti-stick plate 42 prevents the forged flange surface from producing circular marks during forging.

[0035] Example 4, as Figures 1-3 As shown, based on the above embodiment, it also includes two sets of columns 11 fixedly installed on the upper surface of the base 1, and fixing blocks 14 fixedly connected to the upper ends of the two sets of columns 11. Connecting blocks 12 are fixedly connected to the surface of the base 1, and connecting blocks 12 are fixedly connected to fixing blocks 14. A bracket 13 is fixedly installed on the lower surface of the fixing blocks 14. A forging hammer 21 is attached to the lower surface of the bracket 13. A receiving block 24 is fixedly connected to the upper surface of the forging hammer 21. Two sets of locking blocks 26 are fixedly connected to the surface of the receiving block 24. Both sets of locking blocks 26 are attached to the inner wall of the bracket 13. Through the sliding groove opened inside the bracket 13, the forging hammer 21 can be temporarily installed at the bottom of the bracket 13, thereby facilitating the installation of the forging hammer 21 and the power unit 15.

[0036] Example 5, as Figure 2 , Figure 3 As shown, based on the above embodiment, it further includes: a driven gear 2 fixedly mounted on the surface of the forging hammer 21; a servo motor 23 fixedly mounted on the upper surface of the bracket 13; a drive gear 22 fixedly connected to the output shaft of the servo motor 23; the drive gear 22 meshing with the forging hammer 21; a power unit 15 fixedly mounted on the upper surface of the fixing block 14; multiple sets of locking blocks 25 fixedly connected to the surface of the receiving block 24; all sets of locking blocks 25 fitting against the inner wall of the output end of the power unit 15; and a controller 16 fixedly mounted on the surface of the base 1. The servo motor 23 drives the drive gear 22 to rotate, causing the driven gear 2 meshing on the surface of the drive gear 22 to drive the forging hammer 21 to rotate with the drive gear 22. The rotation of the drive gear 22 controls the connection relationship of the forging hammer 21, and different rotation angles control whether the forging hammer 21 is fixed to the bottom of the bracket 13 or to the output end of the power unit 15.

[0037] Example 6, as Figure 7As shown, based on the above embodiment, it further includes a limiting rod 56 fixedly connected to the lower surface of the adjusting ring 31. Multiple sets of limiting blocks 57 are slidably connected inside the limiting rod 56. The limiting rod 56 is slidably connected to the base 1. When the adjusting ring 31 moves vertically, the limiting rod 56 fixedly connected to the bottom of the adjusting ring 31 moves vertically along with the adjusting ring 31. After the adjusting ring 31 is adjusted, airflow is introduced into the limiting rod 56, so that the air pressure inside the limiting rod 56 gradually increases, causing the multiple sets of limiting blocks 57 slidably connected to the surface of the limiting rod 56 to move outward, so that the limiting blocks 57 are engaged with the inner wall of the base 1, thereby fixing the vertical position of the adjusting ring 31 and preventing the adjusting ring 31 from shifting during forging.

[0038] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An automobile intake and exhaust connection flange forging die comprising a base (1), characterized in that, The inside of the base (1) is provided with an inner adjusting assembly (3), which comprises an adjusting ring (31), an expansion block (32), a fixed plate (33), a receiving seat (34), a receiving block two (35), an air pump (36), a hydraulic rod one (37), an expansion pipe (38) and a spring (39). The inside of the base (1) is provided with an outer adjusting assembly (5), which comprises an adjusting gear (53), a toothed plate (54) and a hydraulic rod two (55).

2. The forging die for an automobile intake and exhaust flange according to claim 1, wherein The inside of the adjusting ring (31) is provided with two groups of mounting holes (41), and the inner walls of the two groups of mounting holes (41) are fixedly connected with fixed rods (4).

3. The forging die for an automobile intake and exhaust flange according to claim 1, wherein The upper surface of the base (1) is fixedly connected with two groups of stand columns (11), and the upper ends of the two groups of stand columns (11) are fixedly connected with fixed blocks (14). The surface of the base (1) is fixedly connected with a connecting block (12), and the connecting block (12) is fixedly connected with the fixed blocks (14).

4. The forging die for an automobile intake and exhaust flange according to claim 3, wherein The lower surface of the fixed block (14) is fixedly installed with a support (13), the lower surface of the support (13) is attached with a forging hammer (21), the upper surface of the forging hammer (21) is fixedly connected with a receiving block one (24), the surface of the receiving block one (24) is fixedly connected with two groups of clamping blocks two (26), and the two groups of clamping blocks two (26) are attached with the inner wall of the support (13).

5. The forging die for an automobile intake and exhaust flange according to claim 4, wherein The surface of the forging hammer (21) is fixedly installed with a driven gear (2), the upper surface of the support (13) is fixedly installed with a servo motor (23), the output shaft of the servo motor (23) is fixedly connected with a driving gear (22), and the driving gear (22) is engaged with the forging hammer (21).

6. The forging die for an automobile intake and exhaust flange according to claim 4, wherein The upper surface of the fixed block (14) is fixedly installed with a power machine (15), the surface of the receiving block one (24) is fixedly connected with multiple groups of clamping blocks one (25), and the multiple groups of clamping blocks one (25) are attached with the inner wall of the output end of the power machine (15).

7. The forging die for an automobile intake and exhaust flange according to claim 1, wherein The lower surface of the adjusting ring (31) is fixedly connected with a limiting rod (56), the inside of the limiting rod (56) is slidably connected with multiple groups of limiting blocks two (57), and the limiting rod (56) is slidably connected with the base (1).

8. The forging die for an automobile intake and exhaust flange according to claim 1, wherein The surface of the base (1) is fixedly installed with a controller (16).

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