Metal stamping part bending forming device

Abstract

The utility model belongs to the technical field of bending devices, and discloses a metal stamping part bending forming device which comprises a bottom plate, a mounting frame fixed to the top of the bottom plate, a lower die arranged on the bottom plate, an upper die arranged on the mounting frame and a driving part arranged on the mounting frame and used for controlling the upper die to ascend and descend. A model groove matched with the bottom of the upper mold is formed in the top of the lower mold, a mounting groove communicated with the bottom of the model groove is formed in the lower mold, a jacking block is arranged in the mounting groove, a groove body flush with the inner bottom wall of the model groove is formed in the top of the jacking block, and a driving assembly used for driving the jacking block to ascend and descend is arranged in the lower mold. According to the bending device, the design of a bending device in the traditional technology is changed, the situation that demolding is difficult after a product is bent is avoided, and the bending efficiency of the product is improved.

Description

Technical Field

[0001] This utility model relates to the field of bending device technology, and in particular to a bending and forming device for metal stamping parts. Background Technology

[0002] A bending machine is a machine that can bend thin plates. CNC bending machines use equipped molds to bend cold metal sheets into workpieces with various geometric cross-sectional shapes. It is a sheet metal forming machine designed for cold-rolled sheet metal processing and is widely used in sheet metal bending processing in industries such as automobiles, aircraft manufacturing, light industry, shipbuilding, containers, elevators, and railway vehicles.

[0003] Chinese utility model patent CN219442992U discloses an auxiliary device for bending metal products, including a base. Support boxes are fixedly connected to both sides of the top of the base. Servo motors are fixedly connected to the bottom outer sides of the support boxes. First bevel gears are fixedly connected to the output ends of the servo motors, and second bevel gears are meshed with the tops of the first bevel gears. Chinese utility model patent CN220862422U discloses a metal bending machine for producing metal billboards, including a housing and a positioning mechanism. The housing has electric push rods on the top wall of its front working groove. An mounting plate is located between the lower ends of the telescopic ends of the electric push rods. An upper mold is located at the lower end of the mounting plate. A lower mold, corresponding to the vertical position of the upper mold, is located in the middle of the bottom wall of the front working groove of the housing. A microcontroller is located on the left side of the housing. The input end of the microcontroller is electrically connected to an external power source, and the input end of the electric push rod is electrically connected to the output end of the microcontroller.

[0004] Regarding the aforementioned technologies, the inventors believe that the following defects exist: the bending mechanism in both bending devices includes an upper die and a lower die. The mold groove of the lower die has a V-shaped bending design. The upper die and the lower die cooperate to bend the metal stamping part. Since the metal stamping part has a certain rigidity and toughness, when the upper die presses the metal stamping part into the mold groove of the lower die, the metal stamping part is easily stuck in the mold groove of the lower die, which hinders the demolding of the stamping part and reduces the bending efficiency. Therefore, it is necessary to improve the design of the relevant technologies. Utility Model Content

[0005] To solve the above problems, this utility model provides a metal stamping bending and forming device.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a metal stamping bending forming device, comprising a base plate, a mounting frame fixed to the top of the base plate, a lower die disposed on the base plate, an upper die disposed on the mounting frame, and a driving component disposed on the mounting frame and controlling the lifting and lowering of the upper die. The top of the lower die is provided with a model groove that mates with the bottom of the upper die. The lower die is provided with a mounting groove that communicates with the bottom of the model groove. A lifting block is disposed in the mounting groove. The top of the lifting block is provided with a groove that is flush with the bottom wall of the model groove. A driving component for driving the lifting block to lift and lower is disposed in the lower die.

[0007] By adopting the above technical solution, after the metal stamping part to be bent is placed on the top of the lower die, the drive component drives the upper die to descend. The bottom of the upper die cooperates with the mounting groove on the lower die to complete the bending operation of the metal stamping part. After bending, the operator can use the drive component to drive the lifting block to rise, thereby lifting the bent product. This changes the design of the bending device in the traditional technology and avoids the situation where the product is difficult to demold after bending.

[0008] Furthermore, the lower mold is provided with a first movable groove located directly below the mounting groove, and the lower mold is provided with a second movable groove located on one side of the first movable groove and a connecting hole communicating with both the second and first movable grooves; the driving assembly includes an electric push rod fixed in the second movable groove, a sliding plate fixed to the output rod end of the electric push rod and slidingly engaged with the second movable groove, an mounting rod fixed to the end of the sliding plate away from the electric push rod and slidingly engaged with the connecting hole, a push rod fixed to the top of the mounting rod, and an abutment rod that penetrates and slides through the inner bottom wall of the mounting groove. The upper end of the abutment rod is fixed to the bottom of the lifting block, and an abutting slope is provided at the intersection between the end of the abutment rod near the electric push rod and the lower end of the abutment rod. A pushing slope that cooperates with the abutting slope is provided at the intersection between the upper end of the push rod and the side of the push rod away from the electric push rod.

[0009] By adopting the above technical solution, after the electric push rod works, it drives the sliding plate to slide along the inner wall of the second movable groove. The sliding plate drives the push rod to move synchronously through the mounting rod. The pushing inclined surface on the push rod acts on the abutting inclined surface on the abutting rod, so that the abutting rod drives the lifting block to rise and lift the bent product, avoiding the situation where the bent product is stuck in the mold groove due to the tension of the metal itself and is difficult to remove.

[0010] Furthermore, the lower mold is provided with a receiving groove that communicates with the inner bottom wall of the mounting groove. A spring is provided in the receiving groove and sleeved on the abutment rod. The upper end of the spring is fixed to the bottom of the lifting block, and the lower end of the spring is fixed to the inner bottom wall of the receiving groove. The bottom of the lifting block abuts against the inner bottom wall of the mounting groove.

[0011] By adopting the above technical solution, the spring has a good elastic force. Under the elastic force of the spring, the lifting block and the contact rod accelerate the reset action.

[0012] Furthermore, the lower mold includes a first base mold fixed to the top of the base plate and a second base mold detachably connected to the first base mold. The second base mold has the same structure as the first base mold and is a mirror image of it.

[0013] By adopting the above technical solution, it is easier for staff to install the drive components into the lower mold.

[0014] Furthermore, the lifting blocks are provided in multiple quantities and evenly arranged along the length direction of the lower mold. The number of push rods and abutment rods is equal to the number of lifting blocks and their positions correspond one-to-one. The second base mold is provided with multiple sets of partition units, which are spaced apart from the lifting blocks. The distance between the lifting blocks and adjacent partition units is equal. The partition unit includes a guide strip on the side wall of the second base mold away from the first base mold. The guide strip and the second base mold are provided with a connecting unit for fixing the guide strip to the second base mold. The cross-section of the guide strip is dovetail-shaped. The partition unit also includes a limiting strip that slides with the guide strip. A fastening bolt that is clearance-fitted with the limiting strip passes through the limiting strip. The fastening bolt passes through the guide strip and is clearance-fitted. The side wall of the second base mold away from the first base mold is provided with a threaded hole that is threadedly connected to the fastening bolt.

[0015] By adopting the above technical solution, after the upper end of the limiting strip is higher than the top of the lower die, the limiting strip is fixed with fastening bolts. The metal stamping part to be bent is placed between adjacent limiting strips, which plays a good limiting role for the metal stamping part and ensures the stability of the metal stamping part during the bending process.

[0016] Furthermore, a limiting plate with a surface area larger than the bottom area of ​​the guide strip is fixed at the lower end of the guide strip.

[0017] By adopting the above technical solution, the limiting plate plays a good limiting role for the limiting strip, and when the fastening bolt is unscrewed, it prevents the limiting strip from detaching from the guide strip.

[0018] Furthermore, the threaded holes are provided in multiple ways, and the distance between adjacent threaded holes is equal. The connecting unit includes a mounting plate fixed to the side wall of the second base mold away from the first base mold, a screw fixed to the bottom surface of the limiting plate, and a fastening nut sleeved on the screw and threadedly connected. The mounting plate is provided with a strip-shaped through hole for the screw to pass through, and the length direction of the strip-shaped through hole is parallel to the length direction of the lower mold.

[0019] By adopting the above technical solution, when bending metal stampings of different widths, the operator only needs to unscrew the fastening nut to drive the limiting plate to slide on the mounting plate, thereby adjusting the distance between adjacent limiting strips until the distance between adjacent limiting strips matches the width of the metal stamping to be bent. Then, tighten the fastening nut again to fix the limiting plate, guide strip and limiting strip, so that the metal stamping bending forming device can bend metal stampings of different widths.

[0020] Furthermore, the driving component includes a hydraulic cylinder fixed to the top of the mounting frame and a vertical rod fixed to the top of the upper mold. The upper end of the vertical rod passes through the top of the mounting frame and engages with it. The output rod of the hydraulic cylinder passes through the top of the mounting frame and engages with it. The lower end of the output rod of the hydraulic cylinder is fixed to the top of the upper mold.

[0021] By adopting the above technical solution, the hydraulic cylinder drives the upper die to move downward after it works, so as to facilitate the matching of the upper die and the lower die mold slots and to perform bending processing on the metal stamping parts.

[0022] In summary, this utility model has the following beneficial effects:

[0023] 1. In this application, after the metal stamping part to be bent is placed on the top of the lower die, the driving component drives the upper die to descend. The bottom of the upper die cooperates with the mounting groove on the lower die to complete the bending operation of the metal stamping part. After bending, the operator can use the driving component to drive the lifting block to rise, thereby lifting the bent product. This changes the design of the bending device in the traditional technology, avoids the situation that the product is difficult to demold after bending, and improves the bending efficiency of the product.

[0024] 2. In this application, after the electric push rod is working, it drives the sliding plate to slide along the inner wall of the second movable groove. The sliding plate drives the push rod to move synchronously through the mounting rod. The pushing inclined surface on the push rod acts on the abutting inclined surface on the abutting rod, so that the abutting rod drives the lifting block to rise and lift the bent product, thus avoiding the situation where the bent product is stuck in the mold groove due to the tension of the metal itself and is difficult to remove.

[0025] 3. In this application, when bending metal stampings of different widths, the operator only needs to unscrew the fastening nut to drive the limiting plate to slide on the mounting plate, thereby adjusting the distance between adjacent limiting strips until the distance between adjacent limiting strips matches the width of the metal stamping to be bent. Then, tighten the fastening nut again to fix the limiting plate, guide strip and limiting strip, so that the metal stamping bending forming device can bend metal stampings of different widths. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0027] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0028] Figure 3 This is a diagram illustrating the internal structure of the lower mold in this embodiment of the invention.

[0029] Figure 4 yes Figure 3 Enlarged view of point B in the middle;

[0030] Figure 5 This is a schematic diagram illustrating the structure of the drive component in an embodiment of this utility model;

[0031] Figure 6 yes Figure 5 Enlarged diagram of point C in the middle.

[0032] In the diagram: 1. Base plate; 2. Mounting bracket; 3. Lower mold; 31. Model slot; 32. Mounting slot; 33. First movable slot; 34. Second movable slot; 35. Connecting hole; 36. Receiving slot; 361. Spring; 37. First base mold; 38. Second base mold; 381. Threaded hole; 4. Upper mold; 5. Driving component; 51. Hydraulic cylinder; 52. Vertical rod; 6. Lifting block; 61. Slot; 7. Driving assembly; 71. Electric push rod; 72. Sliding plate; 73. Mounting rod; 74. Push rod; 741. Pushing inclined surface; 75. Abutting rod; 751. Abutting inclined surface; 8. Separating unit; 81. Guide strip; 811. Limiting plate; 82. Limiting strip; 821. Fastening bolt; 9. Connecting unit; 91. Mounting plate; 911. Strip-shaped through hole; 92. Screw; 93. Fastening nut. Detailed Implementation

[0033] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0034] like Figure 1-6As shown in the embodiment of this application, a metal stamping bending forming device is disclosed, including a base plate 1, a mounting frame 2 fixed to the top of the base plate 1, a lower die 3 disposed on the base plate 1, an upper die 4 disposed on the mounting frame 2, and a driving component 5 disposed on the mounting frame 2 and controlling the lifting and lowering of the upper die 4. The lower die 3 has a mold groove 31 at its top that mates with the bottom of the upper die 4. The lower die 3 has a mounting groove 32 communicating with the bottom of the mold groove 31. A lifting block 6 is disposed in the mounting groove 32. The top of the lifting block 6 has a groove body 61 flush with the bottom wall of the mold groove 31. A driving component 7 for driving the lifting block 6 to lift and lower is disposed in the lower die 3. Specifically, the driving component 5 includes a hydraulic cylinder 51 fixed to the top of the mounting frame 2 and a vertical rod 52 fixed to the top of the upper die 4. The upper end of the vertical rod 52 passes through the top of the mounting frame 2 and mates with it. The output rod of the hydraulic cylinder 51 passes through the top of the mounting frame 2 and mates with it. The lower end of the output rod of the hydraulic cylinder 51 is fixed to the top of the upper die 4.

[0035] After the metal stamping part to be bent is placed on top of the lower die 3, the drive component 5 drives the upper die 4 to descend. The bottom of the upper die 4 engages with the mounting groove 32 on the lower die 3 to complete the bending operation of the metal stamping part. After bending, the operator can use the drive component 7 to drive the lifting block 6 to rise, thereby lifting the bent product. This changes the design of the bending device in traditional technology and avoids the situation where the product is difficult to demold after bending. Regarding the drive component 5 driving the upper die 4 to rise and fall, it is worth noting that after the hydraulic cylinder 51 is working, it can drive the upper die 4 to rise and fall, thereby facilitating the engagement of the upper die 4 with the mold groove 31 of the lower die 3 to perform the bending operation of the metal stamping part.

[0036] The lower mold 3 has a first movable groove 33 located directly below the mounting groove 32, and a second movable groove 34 located on one side of the first movable groove 33, as well as a connecting hole 35 that communicates with both the second movable groove 34 and the first movable groove 33. The drive assembly 7 includes an electric push rod 71 fixed in the second movable groove 34 (regarding the power supply of the electric push rod 71, a battery electrically connected to the electric push rod 71 can be installed on the base plate, or a second movable groove 34 of appropriate size can be set according to the size of the battery, and the battery can be installed in the second movable groove 34. This part is prior art and does not need to be described in detail), and the output of the electric push rod 71. The rod end is fixed to a sliding plate 72 that slides in cooperation with the second movable groove 34; an installation rod 73 is fixed to the end of the sliding plate 72 away from the electric push rod 71 and slides in cooperation with the connecting hole 35; a push rod 74 is fixed to the top of the installation rod 73; and an abutment rod 75 is provided through the inner bottom wall of the installation groove 32 and slides in cooperation with it. The upper end of the abutment rod 75 is fixed to the bottom of the lifting block 6. An abutment slope 751 is provided at the intersection between the end of the abutment rod 75 near the electric push rod 71 and the lower end of the abutment rod 75. A pushing slope 741 that cooperates with the abutment slope 751 is provided at the intersection between the upper end of the push rod 74 and the side of the push rod 74 away from the electric push rod 71.

[0037] After the electric push rod 71 operates, it drives the sliding plate 72 to slide along the inner wall of the second movable groove 34. The sliding plate 72 drives the push rod 74 to move synchronously through the mounting rod 73. The pushing inclined surface 741 on the push rod 74 acts on the abutting inclined surface 751 on the abutting rod 75, thereby causing the abutting rod 75 to drive the lifting block 6 to rise and lift the bent product, avoiding the situation where the bent product is stuck in the mold groove 31 due to the tension of the metal itself and is difficult to remove. After demolding, the operator adjusts the electric push rod 71 and resets the push rod 74. The lifting block 6 and the abutting rod 75 reset under their own weight, ready for the next step of lifting and demolding.

[0038] The lower mold 3 has a receiving groove 36 that communicates with the inner bottom wall of the mounting groove 32. A spring 361 is fitted onto the abutment rod 75 within the receiving groove 36. The upper end of the spring 361 is fixed to the bottom of the lifting block 6, and the lower end of the spring 361 is fixed to the inner bottom wall of the receiving groove 36. The bottom of the lifting block 6 is pressed against the inner bottom wall of the mounting groove 32. The spring 361 has good elastic force, and under the elastic force of the spring 361, the lifting block 6 and the abutment rod 75 accelerate the reset action.

[0039] To facilitate the installation of the drive component 7 into the lower mold 3, the lower mold 3 includes a first base mold 37 fixed to the top of the base plate 1 and a second base mold 38 detachably connected to the first base mold 37 (the detachable connection method is a conventional method in the prior art and does not need to be described in detail). The second base mold 38 has the same structure as the first base mold 37 and is a mirror image of it.

[0040] Multiple lifting blocks 6 are provided and evenly arranged along the length of the lower mold 3. The number of push rods 74 and abutment rods 75 is equal to the number of lifting blocks 6 and their positions correspond one-to-one. Multiple sets of partition units 8 are provided on the second base mold 38. The partition units 8 are spaced apart from the lifting blocks 6, and the distance between the lifting blocks 6 and the adjacent partition units 8 is equal. The partition unit 8 includes a guide strip 81 provided on the side wall of the second base mold 38 away from the first base mold 37. The guide strip 81 and the second base mold 38 are provided with a connecting unit 9 for fixing the guide strip 81 to the second base mold 38. The cross-section of the guide strip 81 is dovetail-shaped. The partition unit 8 also includes a limiting strip 82 that slides with the guide strip 81. A fastening bolt 821 that is clearance-fitted with the limiting strip 82 passes through the limiting strip 82. The fastening bolt 821 passes through the guide strip 81 and is clearance-fitted. A threaded hole 381 that is threadedly connected to the fastening bolt 821 is provided on the side wall of the second base mold 38 away from the first base mold 37.

[0041] After the upper end of the limiting strip 82 is higher than the top of the lower die 3, the limiting strip 82 is fixed with fastening bolts 821. The metal stamping part to be bent is placed between adjacent limiting strips 82, which plays a good limiting role for the metal stamping part and ensures the stability of the metal stamping part during the bending process.

[0042] A limiting plate 811 with a surface area larger than the bottom area of ​​the guide bar 81 is fixed at the lower end of the guide bar 81. The limiting plate 811 plays a good limiting role for the limiting bar 82. When the fastening bolt 821 is unscrewed, the limiting bar 82 is prevented from detaching from the guide bar 81.

[0043] Multiple threaded holes 381 are provided, and the distance between adjacent threaded holes 381 is equal. The connecting unit 9 includes a mounting plate 91 fixed to the side wall of the second base mold 38 away from the first base mold 37, a screw 92 fixed to the bottom surface of the limiting plate 811, and a fastening nut 93 sleeved on the screw 92 and threadedly connected. A strip-shaped through hole 911 for the screw 92 to pass through is provided on the mounting plate 91. The length direction of the strip-shaped through hole 911 is parallel to the length direction of the lower mold 3.

[0044] When bending metal stampings of different widths, the operator only needs to unscrew the fastening nut 93 to drive the limiting plate 811 to slide on the mounting plate 91, thereby adjusting the distance between adjacent limiting strips 82 until the distance between adjacent limiting strips 82 matches the width of the metal stamping to be bent. Then, tighten the fastening nut 93 to fix the limiting plate 811, guide strip 81 and limiting strip 82, so that the metal stamping bending forming device can bend metal stampings of different widths.

[0045] The working principle of the metal stamping bending forming device in this embodiment is as follows: After the metal stamping part to be bent is placed on the top of the lower die 3, the driving component 5 drives the upper die 4 to descend. The bottom of the upper die 4 cooperates with the mounting groove 32 on the lower die 3 to complete the bending operation of the metal stamping part. After bending is completed, the operator can use the driving component 7 to drive the lifting block 6 to rise, thereby lifting the bent product. This changes the design of the bending device in the traditional technology, avoids the situation that the product is difficult to demold after bending, and improves the bending efficiency of the product.

[0046] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A metal stamping bending forming device, comprising a base plate (1), a mounting frame (2) fixed to the top of the base plate (1), a lower die (3) disposed on the base plate (1), an upper die (4) disposed on the mounting frame (2), and a driving component (5) disposed on the mounting frame (2) and controlling the lifting and lowering of the upper die (4), wherein the top of the lower die (3) is provided with a mold groove (31) that mates with the bottom of the upper die (4), characterized in that: The lower mold (3) is provided with an installation groove (32) that communicates with the bottom of the model groove (31). A lifting block (6) is provided in the installation groove (32). A groove (61) flush with the bottom wall of the model groove (31) is provided on the top of the lifting block (6). A drive assembly (7) for driving the lifting block (6) to rise and fall is provided in the lower mold (3).

2. The metal stamping bending and forming device according to claim 1, characterized in that: The lower mold (3) is provided with a first movable groove (33) located directly below the mounting groove (32), and the lower mold (3) is provided with a second movable groove (34) located on one side of the first movable groove (33) and a connecting hole (35) that communicates with both the second movable groove (34) and the first movable groove (33). The drive assembly (7) includes an electric push rod (71) fixed in the second movable groove (34), a sliding plate (72) fixed to the output rod end of the electric push rod (71) and slidably engaged with the second movable groove (34), an mounting rod (73) fixed to the end of the sliding plate (72) away from the electric push rod (71) and slidably engaged with the connecting hole (35), a push rod (74) fixed to the top of the mounting rod (73), and an abutment rod (75) that is slidably engaged with the inner bottom wall of the mounting groove (32). The upper end of the abutment rod (75) is fixed to the bottom of the lifting block (6). An abutment slope (751) is provided at the intersection between the end of the abutment rod (75) near the electric push rod (71) and the lower end of the abutment rod (75). A pushing slope (741) that engages with the abutment slope (751) is provided at the intersection between the upper end of the push rod (74) and the side of the push rod (74) away from the electric push rod (71).

3. The metal stamping bending and forming device according to claim 2, characterized in that: The lower mold (3) is provided with a receiving groove (36) that communicates with the inner bottom wall of the mounting groove (32). A spring (361) is provided in the receiving groove (36) and sleeved on the abutment rod (75). The upper end of the spring (361) is fixed to the bottom of the lifting block (6), and the lower end of the spring (361) is fixed to the inner bottom wall of the receiving groove (36). The bottom of the lifting block (6) is pressed against the inner bottom wall of the mounting groove (32).

4. The metal stamping bending and forming device according to claim 3, characterized in that: The lower mold (3) includes a first base mold (37) fixed to the top of the base plate (1) and a second base mold (38) detachably connected to the first base mold (37). The second base mold (38) has the same structure as the first base mold (37) and is a mirror image of it.

5. The metal stamping bending and forming device according to claim 4, characterized in that: The lifting blocks (6) are provided in multiple quantities and are evenly arranged along the length direction of the lower mold (3). The number of push rods (74) and abutment rods (75) is equal to the number of lifting blocks (6) and their positions correspond one-to-one. The second base mold (38) is provided with multiple sets of partition units (8). The partition units (8) are spaced apart from the lifting blocks (6), and the distance between the lifting blocks (6) and the adjacent partition units (8) is equal. The partition unit (8) includes a guide strip (81) provided on the side wall of the second base mold (38) away from the first base mold (37). The guide strip (81) is perpendicular to the second base mold (38). The upper part is provided with a connecting unit (9) for fixing the guide strip (81) and the second base mold (38). The cross-section of the guide strip (81) is dovetail-shaped. The partition unit (8) also includes a limiting strip (82) that slides with the guide strip (81). A fastening bolt (821) that is clearance-fitted with the limiting strip (82) is provided through the limiting strip (82). The fastening bolt (821) passes through the guide strip (81) and is clearance-fitted. A threaded hole (381) that is threadedly connected to the fastening bolt (821) is provided on the side wall of the second base mold (38) away from the first base mold (37).

6. The metal stamping bending and forming apparatus according to claim 5, characterized in that: The lower end of the guide bar (81) is fixed with a limiting plate (811) with a surface area larger than the bottom area of ​​the guide bar (81).

7. The metal stamping bending and forming apparatus according to claim 6, characterized in that: The threaded holes (381) are provided in multiple ways, and the distance between adjacent threaded holes (381) is equal. The connecting unit (9) includes a mounting plate (91) fixed on the side wall of the second base mold (38) away from the first base mold (37), a screw (92) fixed on the bottom surface of the limiting plate (811), and a fastening nut (93) sleeved on the screw (92) and threadedly connected. The mounting plate (91) is provided with a strip-shaped through hole (911) through which the screw (92) passes. The length direction of the strip-shaped through hole (911) is parallel to the length direction of the lower mold (3).

8. The metal stamping bending and forming apparatus according to claim 4, characterized in that: The driving component (5) includes a hydraulic cylinder (51) fixed to the top of the mounting frame (2) and a vertical rod (52) fixed to the top of the upper mold (4). The upper end of the vertical rod (52) passes through the top of the mounting frame (2) and engages with it. The output rod of the hydraulic cylinder (51) passes through the top of the mounting frame (2) and engages with it. The lower end of the output rod of the hydraulic cylinder (51) is fixed to the top of the upper mold (4).

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