A quick stamping device for an automobile door inner panel

Abstract

The application relates to the technical field of automobile doors, in particular to a quick stamping device for an automobile door inner plate, which comprises a base, a supporting plate, a clamping plate, an execution block and a stamping unit. The device can solve the following problems existing in the stamping process of the automobile door inner plate in the prior art: only one automobile door inner plate can be stamped at a time, the workpiece can be taken out and placed in only after the stamping die is opened, and continuous stamping cannot be realized; only one automobile door inner plate can be stamped at a time, so other automobile door inner plates cannot be stamped during the pressure maintaining process of the automobile door inner plate, thereby affecting the work efficiency; the upper die and the lower die are driven to move synchronously in the circumferential direction by the intermittently rotating execution block, during which the upper die and the lower die are controlled to be closed to continuously stamp and form the workpiece to be stamped, so that the stamping efficiency is improved; and the upper die and the lower die can maintain the pressure of the workpiece to be stamped during the stamping process, so that the stamping and forming effect of the workpiece to be stamped is enhanced.

Description

Technical Field

[0001] This invention relates to the field of automotive door technology, and in particular to a rapid stamping device for automotive door inner panels. Background Technology

[0002] Car doors are generally composed of an outer door panel, an inner door panel, a door and window frame, door hinges, a door lock, and door and window accessories. Among them, the inner door panel can enhance safety, so it is usually made of metal. The inner door panel is usually cold-stamped and formed using a specified mold during the manufacturing process.

[0003] However, there are usually some problems in the stamping process of car door inner panels. With the development of technology, technicians in related fields have also made a lot of optimizations to the stamping process of car door inner panels. In order to make a more accurate comparison, Chinese patent with publication number CN207386334U discloses a stamping mold for car door inner panels, including a lower template, an upper template movably connected to the top of the lower template, stamping telescopic rods fixedly connected to both sides of the top front end and back end of the upper template, a pressure template fixedly connected to the bottom of the upper template, temperature sensors set at the bottom of the pressure template and the bottom of the inner cavity of the pressure mold groove, and a control box fixedly connected to the front surface of the lower template. The control box includes a temperature setting module, a temperature setting module and an information processing module that are unidirectionally electrically connected, and an information processing module and a processor that are unidirectionally electrically connected.

[0004] In the above-mentioned prior art, the workpiece is stamped by a stamping die. During the process, the information is transmitted to the processor through the information processing module. Then, the temperature signal of the workpiece inside the die groove is transmitted to the control box through the temperature sensor. When the preset temperature is reached, the processor controls the die-lifting telescopic rod to push the workpiece out.

[0005] However, the existing technology described above has some shortcomings in the process of stamping the inner door panel: 1. Because the existing technology can only stamp the inner door panels one by one, and the inner door panels can only be taken out and the workpiece placed after the stamping mold is opened, continuous stamping cannot be achieved, which affects efficiency and makes it difficult to achieve rapid stamping of the inner door panels.

[0006] 2. Furthermore, since the inner door panel needs to be held under pressure for a certain period of time after stamping, the existing technology can only complete the stamping of one inner door panel at a time. Therefore, it is impossible to stamp other inner door panels during the pressure holding process of the inner door panel, which further affects work efficiency and wastes time and manpower.

[0007] 3. In addition, different models of car door inner panels require different models of stamping dies. However, the existing technology mentioned above can only complete the stamping of a single model of car door inner panel. Therefore, when producing different models of car door inner panels, it is necessary to frequently change dies, which makes it impossible to produce multiple different models of car door inner panels on demand at the same time, which has limitations.

[0008] Therefore, based on the above-mentioned viewpoints, there is still room for improvement in the existing stamping methods for car door inner panels. Summary of the Invention

[0009] To address the aforementioned problems, this invention provides a rapid stamping device for automotive door inner panels, comprising a base, two support plates symmetrically arranged along the length of the upper end of the base, a clamping plate mounted on the upper end of the support plates, an execution block disposed between the two clamping plates, and a stamping unit mounted on the outer wall of the execution block. The stamping unit comprises multiple upper and lower dies evenly and annularly mounted on the outer wall of the execution block, with the multiple upper dies and multiple lower dies corresponding to each other in position.

[0010] A rotating shaft is provided between the two clamping plates, and the actuator is sleeved on the outer wall of the rotating shaft. An intermittent motor is provided on the outer wall of either clamping plate through a motor base, and the output shaft of the intermittent motor is connected to the rotating shaft.

[0011] Preferably, the stamping unit further includes multiple receiving grooves formed on the outer wall of the execution block, the lower die is placed in the receiving groove, a pressure plate is installed on the side of the upper die away from the execution block, a control component for controlling the upper die and the lower die to automatically stamp the workpiece to be stamped is provided between the clamping plate, the lower die and the pressure plate, and connecting plates are provided on both sides of the pressure plate near the length direction of the execution block through opening and closing components, and two return spring rods are symmetrically installed between the connecting plate and the execution block along the length direction.

[0012] Preferably, the control component includes a first annular groove and a second annular groove formed on opposite sides of the two clamping plates, and two traction shafts that slide and engage in the first annular groove are symmetrically arranged on the outer wall of the pressure plate along the length direction; Two auxiliary shafts are symmetrically arranged along the length of the outer wall of the lower mold and are slidably connected in the second annular groove. The actuator block has multiple through holes for the auxiliary shafts to pass through, and the auxiliary shafts slide in the through holes.

[0013] Preferably, an arc-shaped lifting groove is provided above the first annular groove and the second annular groove, and the distance between the first annular groove and the arc-shaped lifting groove above it is greater than the distance between the second annular groove and the arc-shaped lifting groove above it. Inclined grooves that communicate with each other are provided between the first annular groove, the second annular groove and the arc-shaped lifting groove.

[0014] Preferably, the upper end of the clamping plate is provided with a fan-shaped notch for placing the workpiece to be stamped, and the fan-shaped notch is connected to the arc-shaped lifting groove above the first annular groove. Guide buckets connected to the arc-shaped lifting groove above the first annular groove are installed on both sides of the fan-shaped notch. The width of the guide buckets gradually increases on the side away from the arc-shaped lifting groove.

[0015] Preferably, the opening and closing assembly includes a pin, and the side of the pressure plate near the execution block is rotatably connected to any one of the connecting plates by the pin. A fixing rod corresponding to the position of another connecting plate is installed on the side of the pressure plate near the execution block, and a receiving strip that abuts against the fixing rod is provided on the side of the connecting plate away from the execution block.

[0016] Preferably, a first torsion spring is provided between the pressure plate and the pin, an upwardly inclined locking bar is provided on the side of the fixing rod away from the pin, a swing bar is provided on the side of the connecting plate away from the actuator block corresponding to the position of the fixing rod, and a clamping bar that cooperates with the locking bar is provided on the side of the swing bar close to the fixing rod. The opposite sides of the locking bar and the clamping bar are both horizontal planes, and the opposite sides of the locking bar and the clamping bar are parallel inclined planes.

[0017] Preferably, the swing bar and the connecting plate at its lower end are hinged by a second torsion spring. The opening and closing assembly also includes an extension plate installed on the side of the swing bar away from the pin shaft, and a plurality of winding wheels installed on the pin shaft and distributed at equal intervals. A plurality of first pull ropes corresponding to the positions of the winding wheels are installed on the side of the extension plate near the actuating block. A second pull rope is wound around the outer wall of the winding wheel. The ends of the first pull rope and the second pull rope away from the pressure plate both pass through the actuating block and extend into the receiving groove and are equipped with displacement blocks. The distance between the displacement block at the end of the first pull rope and the bottom wall of the receiving groove is less than the distance between the displacement block at the end of the second pull rope and the bottom wall of the receiving groove.

[0018] Preferably, both sides of the lower mold along its length are provided with grooves corresponding to the positions of multiple displacement blocks. A first force-bearing block is installed in the groove near the first pull rope, and a second force-bearing block is provided in the groove near the second pull rope. Both the first and second force-bearing blocks are located on the side of the displacement block closest to the bottom wall of the receiving groove, and the distance between the first force-bearing block and the displacement block on one side is less than the distance between the second force-bearing block and the displacement block on one side.

[0019] In summary, this application includes at least one of the following beneficial technical effects: I. This invention uses an intermittently rotating actuator to drive the upper and lower dies to move synchronously in the circumferential direction. During this period, the upper die is controlled to move closer to the actuator and cooperate with the lower die to stamp the workpiece to be stamped. During the stamping process, the upper and lower dies can hold pressure on the workpiece to be stamped in order to enhance the stamping effect. When the upper and lower dies and the stamped door inner panel move above the actuator, the workpiece to be stamped can be placed or the door inner panel can be removed, thereby enabling continuous stamping of the door inner panel and improving stamping efficiency.

[0020] Second, the present invention can sequentially complete the opening and closing of molds by driving multiple sets of upper and lower molds on the outer wall of the actuator to move intermittently in the circumferential direction. It can continuously stamp the workpiece to be stamped. During the mold opening process, it is convenient to remove the stamped inner door panel and place the workpiece to be stamped. After the upper and lower molds are closed, there is sufficient time to hold the workpiece to be stamped, thereby enhancing the stamping effect.

[0021] Third, in this invention, when the upper and lower molds are moved above the execution block by the execution block, the lower mold moves the first and second force blocks upward and lifts the displacement blocks at the ends of the first and second pull ropes upward respectively. This allows the swing bar to be rotated first to release the locking limit between the clamping bar and the locking bar, and then the pressure plate to be rotated and the upper mold to be opened, thereby increasing the space between the upper and lower molds, which is more conducive to taking out the inner panel of the car door and placing the workpiece to be stamped. Subsequently, the execution block drives the upper and lower molds to continue moving to complete the mold closing, so as to facilitate the continuous stamping forming process of the workpiece to be stamped.

[0022] Fourth, the upper mold and the pressure plate, as well as the lower mold and the receiving groove, provided by the present invention are installed in a detachable manner, which makes it easy to replace the corresponding mold according to the model of the car door inner panel to be stamped, and thus can adapt to the stamping of a variety of different models of car door inner panels. Attached Figure Description

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] Figure 1 This is a schematic diagram of the structure of the present invention.

[0025] Figure 2 This is a schematic diagram of the structure between the clamping plate, the execution block, and the stamping unit of the present invention.

[0026] Figure 3 This is a first structural schematic diagram of the stamping unit of the present invention.

[0027] Figure 4 This is a schematic diagram of the second structure of the stamping unit of the present invention.

[0028] Figure 5 This is a schematic diagram of the structure between the stamping unit and the control component of the present invention.

[0029] Figure 6 This is a schematic diagram of the internal structure of the execution block of the present invention.

[0030] Figure 7 This is a schematic diagram of the opening and closing component of the present invention.

[0031] Figure 8 This is a schematic diagram of the first internal structure of the opening and closing component of the present invention.

[0032] Figure 9 This is a schematic diagram of the second internal structure of the opening and closing component of the present invention.

[0033] Figure 10 This is a schematic diagram of the intermittent rotation unit of the present invention.

[0034] In the diagram, 1. Base; 2. Support plate; 3. Clamping plate; 4. Actuating block; 5. Stamping unit; 51. Upper die; 52. Lower die; 53. Rotating shaft; 54. Intermittent motor; 55. Receiving groove; 56. Pressure plate; 57. Control component; 571. First annular groove; 572. Second annular groove; 573. Traction shaft; 574. Auxiliary shaft; 575. Through hole; 576. Arc-shaped lifting groove; 58. Opening and closing component; 581. Pin; 582. Fixing rod; 583. Receiving strip; 584. Locking bar; 585. Swing bar; 586. Clamping bar; 587. Extension plate; 588. Winding wheel; 589. First pull rope; 590. Second pull rope; 591. Displacement block; 592. Slide groove; 593. First force-bearing block; 594. Second force-bearing block; 60. Connecting plate; 61. Return spring rod; 7. Intermittent rotation unit; 71. Grooved wheel; 72. Locking arc groove; 73. Dial hole; 74. Drive motor; 75. Dial plate; 76. Cylindrical pin; 77. Stabilizing turntable. Detailed Implementation

[0035] The following is in conjunction with the appendix Figures 1-10 The embodiments of the present invention will be described in detail below.

[0036] This application discloses a rapid stamping device for automotive door inner panels. It should be noted that this rapid stamping device is mainly used in the stamping process of automotive door inner panels. Technically, it can control the intermittent circumferential rotation of the execution block 4, upper die 51, and lower die 52 to sequentially complete die opening and closing, enabling continuous stamping of the workpiece and improving stamping efficiency. In particular, during the stamping process, after the upper die 51 and lower die 52 close, there is sufficient time to hold the workpiece under pressure, enhancing the stamping effect. Furthermore, this rapid stamping device can also control the automatic opening of the upper die 51 and lower die 52 to increase the space between them, which is more conducive to removing the automotive door inner panel and placing the workpiece to be stamped.

[0037] Example 1: Reference Figure 1 , Figure 2 and Figure 3 As shown, a rapid stamping device for an automotive door inner panel includes a base 1. Two support plates 2 are symmetrically arranged along the length direction at the upper end of the base 1. A clamping plate 3 is installed on the upper end of the support plate 2. An execution block 4 is arranged between the two clamping plates 3. A stamping unit 5 is installed on the outer wall of the execution block 4. The stamping unit 5 includes a plurality of upper dies 51 and lower dies 52 that are uniformly installed in annular shapes on the outer wall of the execution block 4. The plurality of upper dies 51 and the plurality of lower dies 52 are respectively positioned corresponding to each other.

[0038] Furthermore, in this embodiment, a rotating shaft 53 is rotatably arranged between the two clamping plates 3, and the execution block 4 is fixedly sleeved on the outer wall of the rotating shaft 53. An intermittent motor 54 is arranged on the outer wall of any one of the clamping plates 3 through a motor seat, and the output shaft of the intermittent motor 54 is connected to the rotating shaft 53.

[0039] In the specific implementation process, the workpiece to be stamped is first placed on the upper end of the lower mold 52 located above the execution block 4. Then, the intermittent motor 54 is started. The intermittent motor 54 drives the execution block 4 to rotate intermittently through the rotating shaft 53, so that the execution block 4 drives the lower mold 52, the workpiece to be stamped and the upper mold 51 to move intermittently in the circumferential direction. During this process, the upper mold 51 moves to the side closer to the lower mold 52 and stamps the workpiece to be stamped, thereby stamping the workpiece to be stamped into a door inner panel. After the execution block 4 rotates one revolution, the stamping is completed. The execution block 4 drives the upper mold 51, the lower mold 52 and the stamped door inner panel to move circumferentially upward, so that the upper mold 51 moves upward. At this time, it is convenient to remove the door inner panel and put the workpiece to be stamped into the upper end of the lower mold 52.

[0040] Reference Figure 2 , Figure 3 and Figure 4As shown, in order to facilitate the rapid stamping of the workpiece to be stamped, a corresponding stamping unit 5 is provided in this embodiment. Specifically, the stamping unit 5 also includes multiple receiving grooves 55 opened on the outer wall of the execution block 4. The lower mold 52 is placed in the receiving groove 55. A pressure plate 56 is installed on the side of the upper mold 51 away from the execution block 4. A control component 57 for controlling the upper mold 51 and the lower mold 52 to automatically stamp the workpiece to be stamped is provided between the clamping plate 3, the lower mold 52 and the pressure plate 56. Connecting plates 60 are provided on both sides of the pressure plate 56 near the length direction of the execution block 4 through opening and closing components 58. Two reset spring rods 61 are symmetrically installed between the connecting plate 60 and the execution block 4 along the length direction.

[0041] It should be noted that the reset spring rod 61 has elastic force and always applies driving force to the connecting plate 60, so that the connecting plate 60 tends to move away from the actuator block 4. The connecting plate 60 drives the pressure plate 56 and the upper die 51 to separate from the lower die 52 in the initial state through the opening and closing assembly 58, so as to facilitate the placement and removal of the workpiece to be stamped and the inner door panel. In addition, the upper die 51 and the pressure plate 56, as well as the lower die 52 and the receiving groove 55 are installed in a detachable manner, so as to facilitate the replacement of the corresponding die according to the model of the inner door panel to be stamped, thereby adapting to the stamping of various models of inner door panels.

[0042] In the specific implementation process, when the rotating shaft 53 drives the actuator 4 to rotate intermittently, the actuator 4 drives the reset spring rod 61, connecting plate 60, opening and closing assembly 58, pressure plate 56, upper mold 51 and lower mold 52 to move synchronously in the circumferential direction. During this period, the control assembly 57 can drive the pressure plate 56 and the upper mold 51 to move closer to the actuator 4, so that the upper mold 51 cooperates with the lower mold 52 to stamp the workpiece to be stamped. During the stamping process, the actuator 4 drives the upper mold 51, the lower mold 52 and the workpiece to be stamped inside to move in the circumferential direction, so that the upper mold 51 and the lower mold 52 hold pressure on the workpiece to be stamped, so as to enhance the stamping effect of the workpiece to be stamped. After the stamping is completed, the actuator 4 drives the upper mold 51, the lower mold 52 and the stamped inner door panel to move in the circumferential direction above it. At this time, the control assembly 57 drives the pressure plate 56 and the upper mold 51 to move upward as a whole, so as to remove the stamped inner door panel.

[0043] Reference Figure 5As shown, in order to facilitate the movement of the upper mold 51 towards or away from the lower mold 52, so as to realize the automatic stamping and forming of the workpiece to be stamped and the removal of the stamped inner door panel, a control component 57 is also provided in this embodiment. Specifically, the control component 57 includes a first annular groove 571 and a second annular groove 572 opened on opposite sides of the two clamping plates 3. Two traction shafts 573 are symmetrically arranged along the length direction on the outer wall of the pressure plate 56 and are slidably connected in the first annular groove 571. Two auxiliary shafts 574 are symmetrically arranged along the length direction on the outer wall of the lower mold 52 and are slidably connected in the second annular groove 572. Multiple through holes 575 are opened on the execution block 4 for the auxiliary shafts 574 to pass through, and the auxiliary shafts 574 slide in the through holes 575.

[0044] Furthermore, in this embodiment, an arc-shaped lifting groove 576 is provided above the first annular groove 571 and the second annular groove 572 and is connected to them, and inclined grooves that are interconnected are respectively provided between the first annular groove 571, the second annular groove 572 and the arc-shaped lifting groove 576.

[0045] In the specific implementation process, when the execution block 4 drives the upper mold 51 and the lower mold 52 to move circumferentially, the upper mold 51 drives the traction shaft 573 to move in the first annular groove 571 through the pressure plate 56, and the lower mold 52 drives the auxiliary shaft 574 to move in the second annular groove 572. When the traction shaft 573 and the auxiliary shaft 574 move into the arc-shaped lifting groove 576, the traction shaft 573 and the auxiliary shaft 574 respectively drive the pressure plate 56, the upper mold 51 and the lower mold 52 to move away from the rotating shaft 53. It should be noted that the distance between the first annular groove 571 and the arc-shaped lifting groove 576 above it is greater than the distance between the second annular groove 572 and the arc-shaped lifting groove 576 above it. Therefore, the upward movement distance of the pressure plate 56 and the upper mold 51 is greater than the upward movement distance of the lower mold 52, so that the upper mold 51 and the lower mold 52 move upward as a whole and open the mold, so as to remove the stamped inner door panel and place the workpiece to be stamped on the lower mold 52.

[0046] Subsequently, the execution block 4 drives the upper mold 51 and the lower mold 52 to continue circumferential movement. When the traction shaft 573 and the auxiliary shaft 574 pass through the inclined groove and enter the first annular groove 571 and the second annular groove 572 respectively, the traction shaft 573 and the auxiliary shaft 574 drive the pressure plate 56, the upper mold 51 and the lower mold 52 to move as a whole closer to the rotating shaft 53. The moving distance of the pressure plate 56 and the upper mold 51 is greater than the moving distance of the lower mold 52, so that the upper mold 51 and the lower mold 52 close the mold and perform stamping on the workpiece to be stamped at the same time as they move. Thus, by using multiple sets of upper molds 51 and lower molds 52, the workpiece to be stamped can be continuously and quickly stamped, which can effectively improve the stamping efficiency.

[0047] In this way, by driving the multiple sets of upper molds 51 and lower molds 52 on the outer wall of the actuator 4 to move intermittently in the circumferential direction, the mold opening and closing can be completed in sequence, enabling continuous stamping of the workpiece to be stamped. During the mold opening process, it is convenient to remove the stamped inner door panel and place the workpiece to be stamped. After the upper molds 51 and lower molds 52 are closed, there is sufficient time to hold the workpiece to be stamped, thereby enhancing the stamping effect.

[0048] Continue to refer to Figure 5 As shown, furthermore, in order to facilitate the traction shaft 573 to slide quickly and smoothly into the first annular groove 571 to achieve automatic mold closing of the upper mold 51, in this embodiment, the upper end of the clamping plate 3 is provided with a fan-shaped notch for placing the workpiece to be stamped, and the fan-shaped notch is connected to the arc-shaped lifting groove 576 above the first annular groove 571. Guide buckets connected to the arc-shaped lifting groove 576 above the first annular groove 571 are installed on both sides of the fan-shaped notch. The width of the guide bucket gradually increases on the side away from the arc-shaped lifting groove 576. The guide bucket can guide the traction shaft 573 so that the traction shaft 573 can quickly and smoothly enter the arc-shaped lifting groove 576 above the first annular groove 571.

[0049] In the specific implementation process, when the upper mold 51 and the lower mold 52 move to the top of the execution block 4 and open the mold, the upper mold 51 and the lower mold 52 are located at the fan-shaped notch, so as to take out the stamped inner door panel and place the workpiece to be stamped from the fan-shaped notch.

[0050] Reference Figure 6 and Figure 7 As shown, in order to facilitate the placement of the workpiece to be stamped on the lower die 52 located above the execution block 4, and to quickly remove the stamped inner door panel, an opening and closing assembly 58 is provided in this embodiment. Specifically, the opening and closing assembly 58 includes a pin 581. The side of the pressure plate 56 near the execution block 4 is rotatably connected to any one of the connecting plates 60 by the pin 581. The side of the pressure plate 56 near the execution block 4 is equipped with a fixing rod 582 corresponding to the position of the other connecting plate 60. The side of the connecting plate 60 away from the execution block 4 is provided with a receiving strip 583 that abuts against the fixing rod 582. It should be noted that the fixing rod 582 and the receiving strip 583 abut against each other to support the pressure plate 56, so that the two sides of the pressure plate 56 are parallel to the lower die 52 under the action of the pin 581 and the connecting plate 60 and the fixing rod 582 and the receiving strip 583, respectively. This ensures accurate docking between the upper die 51 and the lower die 52, thereby improving the stamping accuracy of the workpiece to be stamped.

[0051] In the specific implementation process, when placing the workpiece to be stamped or removing the stamped inner door panel, the control plate 56 rotates along the pin shaft 581 to the side away from the execution block 4, so that the pressure plate 56 drives the upper mold 51 to rotate synchronously, so as to increase the space between the upper mold 51 and the lower mold 52, so as to complete the placement and removal of the workpiece to be stamped and the inner door panel.

[0052] Reference Figure 7 , Figure 8 and Figure 9 As shown, in order to facilitate the automatic placement and removal of the workpiece to be stamped or the inner panel of the car door, the pressure plate 56 needs to be able to rotate automatically. Based on this, in this embodiment, a first torsion spring is provided between the pressure plate 56 and the pin 581. A locking bar 584 with an upward inclination is provided on the side of the fixing rod 582 away from the pin 581. A swing bar 585 is provided on the side of the connecting plate 60 corresponding to the position of the fixing rod 582 away from the execution block 4. A clamping bar 586 that cooperates with the locking bar 584 is provided on the side of the swing bar 585 close to the fixing rod 582. The opposite sides of the locking bar 584 and the clamping bar 586 are both horizontal planes, and the opposite sides of the locking bar 584 and the clamping bar 586 are parallel inclined planes.

[0053] In this embodiment, the first torsion spring always applies a torsional force to the pressure plate 56, so that the pressure plate 56 always has a driving force to rotate away from the execution block 4 under the action of the torsional force. When the plane between the locking bar 584 and the clamping bar 586 comes into contact, the pressure plate 56 can be locked in order to counteract the driving force on the pressure plate 56, so that the pressure plate 56 and the lower mold 52 remain parallel.

[0054] Furthermore, to facilitate the automatic rotation of the pressure plate 56 to open the upper mold 51 and the lower mold 52, it is necessary to first separate the locking strip 584 and the clamping strip 586. Based on this, in this embodiment, the swing strip 585 and its lower end connecting plate 60 are hinged by a second torsion spring. The opening and closing assembly 58 also includes an extension plate 587 installed on the side of the swing strip 585 away from the pin 581, and a plurality of winding wheels 588 installed on the pin 581 and evenly distributed. The extension plate 587 is close to the handle. On one side of the actuator block 4, there are multiple first pull ropes 589 corresponding to the positions of the winding wheel 588. A second pull rope 590 is wound around the outer wall of the winding wheel 588. The ends of the first pull ropes 589 and the second pull ropes 590 away from the pressure plate 56 both pass through the actuator block 4 and extend into the receiving groove 55, where a displacement block 591 is installed. The distance between the displacement block 591 at the end of the first pull rope 589 and the bottom wall of the receiving groove 55 is less than the distance between the displacement block 591 at the end of the second pull rope 590 and the bottom wall of the receiving groove 55.

[0055] It should be noted that the second torsion spring always applies a torsional force to the swing bar 585, so that the swing bar 585 tends to rotate towards the side of the locking bar 584 under the action of the torsional force, so that the swing bar 585 drives the clamping bar 586 and the locking bar 584 to engage in the initial state.

[0056] Furthermore, in this embodiment, both sides of the lower mold 52 along its length are provided with grooves 592 corresponding to the positions of multiple displacement blocks 591. A first force-bearing block 593 is installed in the groove 592 near the first pull rope 589, and a second force-bearing block 594 is provided in the groove 592 near the second pull rope 590. The first force-bearing block 593 and the second force-bearing block 594 are both located on the side of the displacement block 591 near the bottom wall of the receiving groove 55, and the distance between the first force-bearing block 593 and the displacement block 591 on one side is less than the distance between the second force-bearing block 594 and the displacement block 591 on one side (in... Figure 8 and Figure 9 (As shown in the image).

[0057] It should be noted that the inner wall of the receiving groove 55 is provided with multiple limiting grooves (not shown in the figure) for accommodating the displacement block 591 and corresponding to the slide groove 592. In this way, the movement direction of the displacement block 591 can be limited by the limiting effect of the limiting groove, so that the displacement block 591 can only move along the length direction of the limiting groove, thereby ensuring that the displacement block 591 can slide in the slide groove 592.

[0058] In the specific implementation process, when the upper mold 51 and the lower mold 52 move above the execution block 4, the upper mold 51 drives the traction shaft 573 to slide out of the arc-shaped lifting groove 576 through the pressure plate 56 and moves upward under the action of the pressure plate 56 and the reset spring rod 61. The lower mold 52 moves upward under the action of the auxiliary shaft 574. At this time, the lower mold 52 drives the first force block 593 and the second force block 594 to move upward as a whole, so that the first force block 593 first abuts against the displacement block 591 at the end of the first pull rope 589 and lifts it upward. While the displacement block 591 moves upward, it applies a pulling force to the extension plate 587 through the first pull rope 589, so that the extension plate 587 drives the swing bar 585 and the clamping bar 586 to rotate as a whole away from the locking bar 584, thereby releasing the locking limit between the clamping bar 586 and the locking bar 584.

[0059] Subsequently, the lower mold 52 continues to move upward, driving the second force block 594 to lift the displacement block 591 at the end of the second pull rope 590 upward. The displacement block 591, through the second pull rope 590 and the winding wheel 588, drives the pin 581 and the pressure plate 56 to rotate away from the lower mold 52. During the rotation of the pressure plate 56, under the action of the first torsion spring, the upper mold 51 rotates away from the lower mold 52, thereby fully opening the upper mold 51 and the lower mold 52, increasing the space between the upper mold 51 and the lower mold 52, which is more conducive to removing the inner door panel and placing the workpiece to be stamped. During this period, the swing bar 585 is always pulled by the first pull rope 589 and remains in the unlocked state.

[0060] After removing the inner door panel and placing the workpiece to be stamped, the actuator 4 drives the upper mold 51 and the lower mold 52 to continue rotating. When the lower mold 52 drives the auxiliary shaft 574 to slide from the arc-shaped lifting groove 576 into the second annular groove 572, the lower mold 52 drives the first force block 593 and the second force block 594 to move as a whole closer to the rotating shaft 53, so that the first force block 593 and the second force block 594 no longer apply lifting force to the displacement block 591; thus, the extension plate 587 is no longer under tension, and the swing bar 585 is reset under the action of the second torsion spring. At this time, the pressure plate 56 and the upper mold 51 are pressed and rotated towards the side closer to the lower mold 52. The pressure plate 56 drives the locking bar 584 and the clamping bar 586 to re-engage through the fixing rod 582, thereby restoring the mold closing between the upper mold 51 and the lower mold 52, so as to cooperate with the lower mold 52 to perform stamping forming processing on the workpiece to be stamped.

[0061] Example 2: Reference Figure 10 As shown, based on Embodiment 1, in order to make the stopping position of the execution block 4 during intermittent circumferential rotation coincide with the fan-shaped notch, it is necessary to control the angle of each intermittent rotation of the execution block 4. Based on this, a corresponding intermittent rotation unit 7 is also provided in this embodiment. The intermittent rotation unit 7 is as follows: a grooved wheel 71 is fixedly sleeved after passing through the clamping plate 3 at any end of the rotating shaft 53. The outer wall of the grooved wheel 71 is provided with multiple locking arc grooves 72 corresponding to the positions of multiple sets of upper molds 51 and lower molds 52. A dial hole 73 is provided between two adjacent locking arc grooves 72. A drive motor 74 is provided on the side wall of the clamping plate 3 through the motor cover. A dial 75 is fixedly sleeved on the output shaft of the drive motor 74. A cylindrical pin 76 that slides and engages inside the dial hole 73 is installed on the side of the dial 75 away from the clamping plate 3. A stable turntable 77 that rotates and abuts against the locking arc groove 72 is provided at the end of the dial 75.

[0062] In the specific implementation process, the drive motor 74 is started, and the drive motor 74 drives the dial 75 to rotate. The dial 75 drives the cylindrical pin 76 and the stable turntable 77 to rotate synchronously. When the cylindrical pin 76 slides into the dial hole 73, the cylindrical pin 76 can cooperate with the dial hole 73 to move the groove wheel 71. The groove wheel 71 drives the actuator block 4, the upper mold 51 and the lower mold 52 to rotate as a whole through the rotating shaft 53, so that the groove wheel 71 rotates at the angle between two adjacent dial holes 73, and this angle is equal to the angle between two adjacent sets of upper molds 51 and lower molds 52, so as to sequentially take out the inner door panel and place the workpiece to be stamped in multiple sets of upper molds 51 and lower molds 52, thereby ensuring the accuracy of the circumferential movement of multiple sets of upper molds 51 and lower molds 52.

[0063] After the cylindrical pin 76 slides out of the hole 73, the stabilizing turntable 77 rotates and contacts the locking arc groove 72, thereby limiting the rotation direction of the groove wheel 71 and preventing it from rotating arbitrarily and affecting the placement and removal of materials.

[0064] During operation: First step: Place the workpiece to be stamped on the upper end of the lower mold 52 located above the execution block 4. Then start the intermittent motor 54. The intermittent motor 54 drives the execution block 4 to rotate intermittently through the rotating shaft 53, so that the execution block 4 drives the lower mold 52, the workpiece to be stamped and the upper mold 51 to move intermittently in the circumferential direction.

[0065] Step 2: When the actuator 4 drives the upper mold 51 and the lower mold 52 to move circumferentially, the upper mold 51 drives the traction shaft 573 to move in the first annular groove 571 through the pressure plate 56, and the lower mold 52 drives the auxiliary shaft 574 to move in the second annular groove 572. When the traction shaft 573 and the auxiliary shaft 574 enter the first annular groove 571 and the second annular groove 572 after passing through the inclined groove, respectively, the traction shaft 573 and the auxiliary shaft 574 drive the pressure plate 56, the upper mold 51 and the lower mold 52 to move as a whole closer to the rotating shaft 53. The movement of one side of the upper mold 51 and the lower mold 52 causes them to close simultaneously and stamp the workpiece to be stamped. Thus, by using multiple sets of upper molds 51 and lower molds 52, the workpiece to be stamped can be continuously and rapidly stamped, which can effectively improve stamping efficiency. In addition, during the stamping process, the actuator 4 drives the upper mold 51, the lower mold 52 and the workpiece to be stamped inside to move circumferentially, so that the upper mold 51 and the lower mold 52 hold pressure on the workpiece to be stamped, so as to enhance the stamping forming effect of the workpiece to be stamped.

[0066] Subsequently, the execution block 4 drives the upper mold 51 and the lower mold 52 to continue circumferential movement. When the traction shaft 573 and the auxiliary shaft 574 move into the arc-shaped lifting groove 576, the traction shaft 573 and the auxiliary shaft 574 respectively drive the pressure plate 56, the upper mold 51 and the lower mold 52 to move away from the rotating shaft 53, so that the upper mold 51 and the lower mold 52 move upward as a whole and open the mold, so as to remove the stamped inner door panel and place the workpiece to be stamped on the lower mold 52.

[0067] Step 3: When the upper mold 51 and the lower mold 52 move above the execution block 4, the upper mold 51 drives the traction shaft 573 to slide out of the arc-shaped lifting groove 576 through the pressure plate 56 and moves upward under the action of the pressure plate 56 and the reset spring rod 61. The lower mold 52 moves upward under the action of the auxiliary shaft 574. At this time, the lower mold 52 drives the first force block 593 and the second force block 594 to move upward as a whole, so that the first force block 593 first abuts against the displacement block 591 at the end of the first pull rope 589 and lifts it upward. While the displacement block 591 moves upward, it applies a pulling force to the extension plate 587 through the first pull rope 589, so that the extension plate 587 drives the swing bar 585 and the clamping bar 586 to rotate as a whole away from the locking bar 584, thereby releasing the locking limit between the clamping bar 586 and the locking bar 584.

[0068] Subsequently, the lower mold 52 continues to move upward, and drives the second force block 594 to lift the displacement block 591 at the end of the second pull rope 590 upward. The displacement block 591, through the second pull rope 590 and the winding wheel 588, drives the pin 581, pressure plate 56 and upper mold 51 to rotate as a whole away from the lower mold 52, so that the upper mold 51 and the lower mold 52 can be fully opened, increasing the space between the upper mold 51 and the lower mold 52, which is more conducive to taking out the inner door panel and placing the workpiece to be stamped.

[0069] After removing the inner door panel and placing the workpiece to be stamped, the actuator 4 drives the upper mold 51 and the lower mold 52 to continue rotating. When the lower mold 52 drives the auxiliary shaft 574 to slide from the arc-shaped lifting groove 576 into the second annular groove 572, the lower mold 52 drives the first force block 593 and the second force block 594 to reset, so that the first force block 593 and the second force block 594 no longer apply lifting force to the displacement block 591; thus, the extension plate 587 is no longer under tension and, in conjunction with the second torsion spring, drives the swing bar 585 to reset. At this time, the pressure plate 56 and the upper mold 51 are pressed and rotated towards the side closer to the lower mold 52. The pressure plate 56 drives the locking bar 584 and the clamping bar 586 to re-engage through the fixing rod 582, thereby restoring the mold closing between the upper mold 51 and the lower mold 52, so as to cooperate with the lower mold 52 to perform stamping forming processing on the workpiece to be stamped.

[0070] By repeating the above steps, multiple workpieces can be continuously stamped, which can improve stamping efficiency.

[0071] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention.

[0072] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A rapid stamping device for an automotive door inner panel, comprising a base (1), two support plates (2) symmetrically arranged along the length direction at the upper end of the base (1), a clamping plate (3) mounted on the upper end of the support plate (2), an execution block (4) disposed between the two clamping plates (3), and a stamping unit (5) mounted on the outer wall of the execution block (4), characterized in that: The stamping unit (5) includes multiple upper dies (51) and lower dies (52) evenly installed in a ring on the outer wall of the execution block (4). The multiple upper dies (51) and multiple lower dies (52) are respectively positioned correspondingly, wherein: A rotating shaft (53) is provided between the two clamping plates (3) for common rotation. An execution block (4) is sleeved on the outer wall of the rotating shaft (53). An intermittent motor (54) is provided on the outer wall of any one of the clamping plates (3) through a motor seat. The output shaft of the intermittent motor (54) is connected to the rotating shaft (53). The stamping unit (5) also includes multiple receiving grooves (55) opened on the outer wall of the execution block (4). The lower die (52) is placed in the receiving groove (55). A pressure plate (56) is installed on the side of the upper die (51) away from the execution block (4). A control component (57) for controlling the upper die (51) and the lower die (52) to automatically stamp the workpiece to be stamped is provided between the clamping plate (3), the lower die (52) and the pressure plate (56). A connecting plate (60) is provided on both sides of the pressure plate (56) near the execution block (4) in the length direction through the opening and closing component (58). Two reset spring rods (61) are symmetrically installed between the connecting plate (60) and the execution block (4) in the length direction. The control assembly (57) includes a first annular groove (571) and a second annular groove (572) opened on opposite sides of the two clamping plates (3), and two traction shafts (573) symmetrically arranged along the length direction on the outer wall of the pressure plate (56) in the first annular groove (571). The outer wall of the lower mold (52) is symmetrically provided with two auxiliary shafts (574) that slide and dock in the second annular groove (572) along the length direction. The execution block (4) is provided with multiple through holes (575) for the auxiliary shafts (574) to pass through. The auxiliary shafts (574) slide in the through holes (575).

2. The rapid stamping device for automobile door inner panel according to claim 1, characterized in that: The first annular groove (571) and the second annular groove (572) are each provided with an arc-shaped lifting groove (576) connected to them. The distance between the first annular groove (571) and the arc-shaped lifting groove (576) above it is greater than the distance between the second annular groove (572) and the arc-shaped lifting groove (576) above it. The first annular groove (571), the second annular groove (572) and the arc-shaped lifting groove (576) are respectively provided with inclined grooves that are connected to each other.

3. The rapid stamping device for automotive door inner panels according to claim 1, characterized in that: The clamping plate (3) has a fan-shaped notch at the upper end for placing the workpiece to be stamped, and the fan-shaped notch is connected to the arc-shaped lifting groove (576) above the first annular groove (571). The two side walls of the fan-shaped notch are equipped with guide buckets that are connected to the arc-shaped lifting groove (576) above the first annular groove (571). The width of the guide bucket gradually increases on the side away from the arc-shaped lifting groove (576).

4. The rapid stamping device for automobile door inner panel according to claim 1, characterized in that: The opening and closing assembly (58) includes a pin (581). The side of the pressure plate (56) near the execution block (4) is rotatably connected to any one of the connecting plates (60) by the pin (581). The side of the pressure plate (56) near the execution block (4) is equipped with a fixing rod (582) corresponding to the position of another connecting plate (60). The side of the connecting plate (60) away from the execution block (4) is provided with a receiving strip (583) that abuts against the fixing rod (582).

5. The rapid stamping device for an automotive door inner panel according to claim 4, characterized in that: A first torsion spring is provided between the pressure plate (56) and the pin (581). A locking bar (584) with an upward inclination is provided on the side of the fixing rod (582) away from the pin (581). A swing bar (585) is provided on the side of the connecting plate (60) corresponding to the position of the fixing rod (582) away from the execution block (4). A clamping bar (586) that cooperates with the locking bar (584) is provided on the side of the swing bar (585) close to the fixing rod (582). The opposite sides of the locking bar (584) and the clamping bar (586) are both horizontal planes, and the opposite sides of the locking bar (584) and the clamping bar (586) are parallel inclined planes.

6. The rapid stamping device for an automotive door inner panel according to claim 5, characterized in that: The swing bar (585) is hinged to the connecting plate (60) at its lower end by a second torsion spring. The opening and closing assembly (58) also includes an extension plate (587) installed on the side of the swing bar (585) away from the pin (581), and a plurality of winding wheels (588) installed on the pin (581) and distributed at equal intervals. A plurality of first pull ropes (589) corresponding to the positions of the winding wheels (588) are installed on the side of the extension plate (587) near the execution block (4). A second pull rope (590) is wound around the outer wall of the winding wheel (588). The ends of the first pull rope (589) and the second pull rope (590) away from the pressure plate (56) both pass through the execution block (4) and extend into the receiving groove (55) and are equipped with displacement blocks (591). The distance between the displacement block (591) at the end of the first pull rope (589) and the bottom wall of the receiving groove (55) is less than the distance between the displacement block (591) at the end of the second pull rope (590) and the bottom wall of the receiving groove (55).

7. The rapid stamping device for an automotive door inner panel according to claim 6, characterized in that: The lower mold (52) has grooves (592) on both sides of its length direction, which correspond to the positions of multiple displacement blocks (591). A first force block (593) is installed in the groove (592) near the first pull rope (589), and a second force block (594) is installed in the groove (592) near the second pull rope (590). The first force block (593) and the second force block (594) are both located on the side of the displacement block (591) near the bottom wall of the receiving groove (55), and the distance between the first force block (593) and the displacement block (591) on its side is less than the distance between the second force block (594) and the displacement block (591) on its side.

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