A lightweight post-floor frame structure stamping device and its application method

Abstract

This invention discloses a lightweight floor frame structure stamping device and its usage method, relating to the technical field of stamping devices. It includes a base frame and a top frame. Two guide plates are fixedly mounted on the top surface of the base frame, and the top frame is fixedly mounted on the top surface of the two guide plates. A stamping mechanism is mounted on the bottom surface of the top frame, and a mold groove corresponding to the stamping mechanism is recessed on the base frame. When the pushing mechanism moves, it works in conjunction with a wave-shaped groove to control a first blowing mechanism to continuously spray airflow, thereby blowing the surface of the workpiece through the sprayed airflow. A second blowing mechanism blows the inner wall of the mold groove, reducing the possibility of impurities affecting the stamping effect. The pushing mechanism pushes the workpiece towards the mold groove. When the pushing mechanism moves to the point of separation from the groove, it retracts to clamp the workpiece and simultaneously corrects its position, allowing the workpiece to accurately fall into the mold groove for stamping.

Description

Technical Field

[0001] This invention relates to the field of stamping equipment technology, and in particular to a stamping equipment for a lightweight rear floor frame structure and its usage method. Background Technology

[0002] The rear floor frame is the core load-bearing structure at the rear of the vehicle body. It is mainly used to support the rear seats, trunk, subframe and other components. It also undertakes functions such as absorbing collision energy and improving the rigidity of the vehicle body. It usually includes the rear sections of the longitudinal beams on the left and right sides and the crossbeams connecting the longitudinal beams. In order to reduce the overall weight of the rear floor, lightweight materials can be used to make a lightweight rear floor frame structure. The rear floor frame structure needs to be stamped and formed by stamping equipment during processing.

[0003] Some existing stamping devices directly place the workpiece into the stamping device for stamping. If there are foreign objects left on the surface of the workpiece or inside the mold groove, these foreign objects can easily affect the final product quality when the workpiece is stamped. Summary of the Invention

[0004] In order to improve the problem mentioned above, when the workpiece is directly placed into the stamping device for stamping, if there are foreign objects left on the surface of the workpiece or inside the mold groove, the foreign objects can easily affect the final product quality of the workpiece during stamping.

[0005] This invention provides a lightweight floor frame structure stamping device and its usage method, adopting the following technical solution:

[0006] A lightweight rear floor frame structure stamping device includes a base frame and a top frame. Two guide plates are fixedly mounted on the top surface of the base frame, and the top frame is fixedly mounted on the top surface of the two guide plates. A stamping mechanism is provided on the bottom surface of the top frame. A mold groove corresponding to the stamping mechanism is recessed on the base frame. A pushing mechanism is provided at the right end of the base frame. A first blowing mechanism is provided inside the pushing mechanism. A wavy groove is provided on the top surface of the base frame. The bottom of the first blowing mechanism slides in cooperation with the inner wall of the wavy groove. A second blowing mechanism is provided inside the guide plates.

[0007] The bottom surface of the base frame is provided with a first electric push rod, and the extended end of the first electric push rod is fixedly provided with a top material rod. The upper end of the top material rod is inserted into the mold groove and is flush with the inner bottom wall of the mold groove.

[0008] The guide plate has two grooves on its side wall. One groove is located at the right end of the guide plate, and the other groove is located at the position corresponding to the mold groove on the guide plate.

[0009] The pushing mechanism includes a second electric push rod and a horizontal plate. The second electric push rod is fixedly mounted on the top surface of the base frame. The horizontal plate is fixedly mounted on the extended end of the second electric push rod. Both ends of the horizontal plate are provided with sliding grooves. Clamping plates are slidably mounted in both sliding grooves. A guide rod is fixedly mounted on the side of the clamping plate facing the guide plate. The guide rod is located in the right groove and slides in cooperation with the inner wall of the right groove.

[0010] The clamping plate includes a slider and a movable plate. The slider is located in a groove and slides in cooperation with the inner wall of the groove. The movable plate is fixedly installed at one end of the slider that extends out of the groove. The slider is connected to the inner wall of the groove by a first spring. The movable plate has a movable cavity. A support plate is fixedly installed on the bottom surface of the movable plate. The support plate is triangular in shape.

[0011] The first purging mechanism includes a first piston plate and a first round rod. The first piston plate is movably disposed in the movable cavity. One end of the first round rod is inserted into the movable plate and fixedly connected to the first piston plate. The other end of the first round rod is slidably engaged with the inner wall of the corrugated groove. The first piston plate is connected to the inner bottom wall of the movable cavity by a second spring. Several first nozzles are fixedly inserted into the top surface of the movable plate. The air outlet end of the first nozzle is bent toward the base frame.

[0012] Optionally, in the above-mentioned lightweight floor frame structure stamping device, the stamping mechanism includes a cylinder and a stamping block. The cylinder is fixedly mounted on the bottom surface of the top frame, and the stamping block is fixedly mounted on the extended end of the cylinder. A limit rod is fixedly mounted on the side wall of the stamping block, and the end of the limit rod away from the stamping block slides in cooperation with the inner side wall of the top frame.

[0013] The side wall of the stamping block is provided with an infrared sensor for detecting the position of the workpiece, and the infrared sensor is electrically connected to the cylinder.

[0014] Optionally, in the above-mentioned lightweight floor frame structure stamping device, a cavity is provided on the inner wall of the left end of the guide plate, the second blowing mechanism is disposed in the cavity, and the cavity is connected to the inner wall of the left groove.

[0015] Optionally, in the above-mentioned lightweight floor frame structure stamping device, the second blowing mechanism includes a second piston plate and a second round rod. The second piston plate is movably disposed in the cavity. The second piston plate is connected to the inner wall of the cavity by a third spring. One end of the second round rod is inserted into the cavity and fixedly connected to the second piston plate. The second round rod is inserted into a groove. A hollow plate is fixedly disposed on the top surface of the guide plate. The hollow plate is connected to the cavity by an air guide pipe. Several second nozzles are fixedly inserted into the side wall of the hollow plate. The air outlet end of the second nozzle is bent towards the mold groove direction.

[0016] Another technical solution proposed by this invention: a method for using a stamping device for a lightweight floor frame structure, comprising the following steps:

[0017] S101: First, the workpiece is placed into the pusher mechanism, and then the pusher mechanism pushes the workpiece toward the mold groove. When the pusher mechanism moves to separate from the groove, the pusher mechanism retracts to clamp the workpiece and corrects the position of the workpiece at the same time.

[0018] S102: The first blowing mechanism is controlled by a wave-shaped groove to continuously spray airflow, thereby blowing the surface of the workpiece through the sprayed airflow;

[0019] S103: When the workpiece moves to the mold groove, the pusher mechanism coincides with another groove. At this time, the pusher mechanism expands, causing the workpiece to lose its limit and fall into the mold groove. As the pusher mechanism moves, it controls the movement of the second blowing mechanism, and then the workpiece is stamped and formed by the stamping mechanism.

[0020] S104: After the workpiece is stamped, the stamping mechanism is reset. Then, the first electric push rod pushes the ejector rod to move and remove the workpiece. The ejector mechanism is then reset to its initial state to facilitate subsequent actions. As the ejector mechanism separates from the second blowing mechanism, the second blowing mechanism sprays airflow to blow the inner wall of the mold groove.

[0021] In summary, the present invention has at least one of the following beneficial effects:

[0022] When the pusher mechanism moves, it works in conjunction with the corrugated groove to control the first blowing mechanism to continuously spray airflow, thereby blowing the surface of the workpiece through the sprayed airflow, and blowing the inner wall of the mold groove through the second blowing mechanism, so as to reduce the possibility of debris affecting the stamping effect when the workpiece is stamped.

[0023] The workpiece is pushed towards the mold groove by the pusher mechanism. When the pusher mechanism moves to the point of separation from the groove, it retracts to clamp the workpiece and corrects its position, so that the workpiece can fall accurately into the mold groove for stamping. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0025] Figure 2 This is a partial three-dimensional structural cross-sectional view of the present invention;

[0026] Figure 3 This is a partial three-dimensional cross-sectional view of the guide plate of the present invention;

[0027] Figure 4 This is a partial three-dimensional structural cross-sectional view of the base frame of the present invention;

[0028] Figure 5 This is a partial three-dimensional structural schematic diagram of the feeding mechanism of the present invention;

[0029] Figure 6 This is a partial three-dimensional unfolded structural diagram of the feeding mechanism of the present invention;

[0030] Figure 7 This is a partial three-dimensional cross-sectional view of the first purging mechanism of the present invention;

[0031] Figure 8 This is a partial three-dimensional unfolded cross-sectional view of the second purging mechanism of the present invention.

[0032] In the diagram: 1. Base frame; 11. First electric push rod; 12. Ejector rod; 2. Top frame; 3. Guide plate; 31. Groove; 32. Cavity; 4. Stamping mechanism; 41. Cylinder; 42. Stamping block; 43. Limiting rod; 44. Infrared sensor; 5. Mold groove; 6. Pushing mechanism; 61. Second electric push rod; 62. Horizontal plate; 63. Slide groove; 64. Clamping plate; 641. Slider; 642. Movable plate; 643. First spring; 644. Movable cavity; 645. Support plate; 65. Guide rod; 7. Blowing mechanism; 71. First piston plate; 72. First round rod; 73. Second spring; 74. First nozzle; 8. Wavy groove; 9. Second blowing mechanism; 91. Second piston plate; 92. Second round rod; 93. Third spring; 94. Hollow plate; 95. Air guide pipe; 96. Second nozzle. Detailed Implementation

[0033] The following is in conjunction with the appendix Figures 1-8 The present invention will be described in further detail below.

[0034] Please refer to the attached diagram in the instruction manual. Figures 1-8 The present invention provides an embodiment of a lightweight rear floor frame structure stamping device, comprising a base frame 1 and a top frame 2. Two guide plates 3 are fixedly disposed on the top surface of the base frame 1, and the top frame 2 is fixedly disposed on the top surface of the two guide plates 3. A stamping mechanism 4 is disposed on the bottom surface of the top frame 2. A mold groove 5 corresponding to the stamping mechanism 4 is recessed on the base frame 1. The stamping mechanism 4 includes a cylinder 41 and a stamping block 42. The cylinder 41 is fixedly disposed on the bottom surface of the top frame 2, and the stamping block 42 is fixedly disposed on the extended end of the cylinder 41. The cylinder 41 facilitates the movement of the stamping block 42, thereby facilitating the stamping of the workpiece by cooperating with the mold groove 5.

[0035] A limiting rod 43 is fixedly provided on the side wall of the stamping block 42. The end of the limiting rod 43 away from the stamping block 42 is slidably engaged with the inner side wall of the top frame 2. When the stamping block 42 moves, the limiting rod 43 moves synchronously with it. At this time, the limiting rod 43 cooperates with the top frame 2 to limit the stamping block 42, so as to increase the stability of the stamping block 42 when it moves.

[0036] The side wall of the stamping block 42 is provided with an infrared sensor 44 for detecting the position of the workpiece. The infrared sensor 44 is electrically connected to the cylinder 41. The infrared sensor 44 facilitates the detection of the position of the workpiece. When the infrared sensor 44 detects that the workpiece has moved to below the stamping block 42, it transmits a signal to the inside of the cylinder 41. At this time, the cylinder 41 pushes the stamping block 42 down to facilitate stamping the workpiece.

[0037] It should be noted that both the stamping mechanism 4 and the die groove 5 use existing equipment and are adjusted according to actual usage.

[0038] The bottom surface of the base frame 1 is provided with a first electric push rod 11. The extended end of the first electric push rod 11 is fixedly provided with a ejector rod 12. The upper end of the ejector rod 12 is inserted into the mold groove 5 and is flush with the inner bottom wall of the mold groove 5. After the workpiece is stamped, the ejector rod 12 is pushed upward by the first electric push rod 11, and then the ejector rod 12 pushes the workpiece to separate from the mold groove 5, so as to realize the ejection of the workpiece.

[0039] A pusher mechanism 6 is provided at the right end of the base frame 1. Two grooves 31 are provided on the side wall of the guide plate 3. One groove 31 is provided at the right end of the guide plate 3, and the other groove 31 is provided at the position corresponding to the mold groove 5. When the pusher mechanism 6 overlaps with the groove 31, the pusher mechanism 6 expands to facilitate the operator to put the workpiece into the pusher mechanism 6. When the pusher mechanism 6 moves, it separates from the groove 31, thereby causing the pusher mechanism 6 to contract to clamp and fix the workpiece. When the workpiece moves to the position of the mold groove 5, the pusher mechanism 6 overlaps with the groove 31 again, thereby causing the pusher mechanism 6 to expand so that the workpiece loses its limit and falls into the mold groove 5.

[0040] The pushing mechanism 6 includes a second electric push rod 61 and a horizontal plate 62. The second electric push rod 61 is fixedly mounted on the top surface of the base frame 1, and the horizontal plate 62 is fixedly mounted on the extended end of the second electric push rod 61. Both ends of the horizontal plate 62 are provided with sliding grooves 63, and clamping plates 64 are slidably mounted in both sliding grooves 63. A guide rod 65 is fixedly mounted on the side of the clamping plate 64 facing the guide plate 3. The guide rod 65 is located in the right groove 31 and slides in cooperation with the inner wall of the right groove 31. The second electric push rod 61 facilitates the movement of the horizontal plate 62 and the two clamping plates 64. When the guide rod 65 coincides with the groove 31, the guide rod 65 is inserted into the groove 31, thereby causing the clamping plate 64 to move towards the guide plate 3.

[0041] The clamping plate 64 includes a slider 641 and a movable plate 642. The slider 641 is located in the slide groove 63 and slides in cooperation with the inner wall of the slide groove 63. The movable plate 642 is fixedly installed at the end of the slider 641 that extends out of the slide groove 63. The slider 641 is connected to the inner wall of the slide groove 63 by a first spring 643. The movable plate 642 has a movable cavity 644. A support plate 645 is fixedly installed on the bottom surface of the movable plate 642. The support plate 645 is triangular in shape. The first spring 643 facilitates the movement of the slider 641 and the movable plate 642 toward the guide plate 3, thereby causing the guide rod 65 to always be in contact with the side wall of the guide plate 3. The position of the slider 641 and the movable plate 642 can be adjusted through the slide groove 63.

[0042] The feeding mechanism 6 is equipped with a first blowing mechanism 7. A wavy groove 8 is formed on the top surface of the base frame 1. The bottom of the first blowing mechanism 7 slides against the inner wall of the wavy groove 8. The first blowing mechanism 7 includes a first piston plate 71 and a first round rod 72. The first piston plate 71 is movably disposed within the movable cavity 644. One end of the first round rod 72 is inserted into the movable plate 642 and fixedly connected to the first piston plate 71. The other end of the first round rod 72 slides against the inner wall of the wavy groove 8. The first piston plate 71 is connected to the inner bottom wall of the movable cavity 644 via a second spring 73. Several first nozzles 74 are fixedly inserted into the top surface of the movable plate 642. The air outlet bends towards the base frame 1. When the movable plate 642 moves horizontally, it will simultaneously drive the first blowing mechanism 7 to move as a whole. During this process, the second spring 73 continuously applies tension, so that the first piston plate 71 and the first round rod 72 always keep in contact with the bottom surface of the wave-shaped groove 8. Due to the special contour design of the wave-shaped groove 8, the movement of the movable plate 642 will force the first round rod 72 to reciprocate up and down, thereby driving the first piston plate 71 to make piston movement in the movable cavity 644. This reciprocating motion continuously compresses the air in the movable cavity 644, continuously pressurizing the airflow into the first nozzle 74, and finally forming a stable jet airflow to achieve effective blowing of the workpiece surface.

[0043] A second blowing mechanism 9 is provided inside the guide plate 3. A cavity 32 is provided on the inner wall of the left end of the guide plate 3. The second blowing mechanism 9 is located in the cavity 32 and the cavity 32 is connected to the inner wall of the left groove 31. The cavity 32 facilitates the installation of the second blowing mechanism 9.

[0044] The second blowing mechanism 9 includes a second piston plate 91 and a second round rod 92. The second piston plate 91 is movably disposed in the cavity 32 and is connected to the inner wall of the cavity 32 by a third spring 93. One end of the second round rod 92 is inserted into the cavity 32 and fixedly connected to the second piston plate 91. The second round rod 92 is inserted into the groove 31. A hollow plate 94 is fixedly disposed on the top surface of the guide plate 3. The hollow plate 94 is connected to the cavity 32 by an air guide pipe 95. Several second nozzles 96 are fixedly inserted into the side wall of the hollow plate 94. The air outlet end of the second nozzle 96 is bent toward the mold groove 5.

[0045] During operation, the guide rod 65 moves along a predetermined trajectory. When its front end enters the groove 31, it forms precise mechanical contact with the end of the second round rod 92. As the guide rod 65 continues to advance, the interaction force of the contact surfaces pushes the second round rod 92 to move axially, thereby causing the second piston plate 91 to move linearly within the cavity 32. This movement simultaneously causes the third spring 93 to undergo elastic deformation, storing mechanical energy.

[0046] When the guide rod 65 completes its working stroke and begins to reset with the movable plate 642, the second round rod 92 loses the external force. At this time, the elastic potential energy stored in the third spring 93 is released, generating a restoring force, which precisely pulls the second piston plate 91 back to its initial position. The reset movement of the piston plate forms a negative pressure to positive pressure conversion process in the cavity 32. In the early stage of reset, negative pressure is generated to draw in air, and in the later stage of reset, positive pressure is generated to transport compressed air through the air guide pipe 95 to the flow channel of the hollow plate 94.

[0047] The hollow plate 94 has an optimized airflow channel inside, which ensures that compressed air can be evenly distributed to each of the second nozzles 96. These nozzles can concentrate the airflow and spray it to each corner of the mold cavity 5. The sprayed airflow has sufficient kinetic energy to effectively remove the metal shavings, dust and other processing residues remaining in the mold cavity 5.

[0048] In summary: The operator first places the workpiece to be processed accurately in the pusher mechanism 6, and then pushes the workpiece smoothly towards the mold groove 5 through the pusher mechanism 6. During the pushing process, the guide component of the pusher mechanism 6 is mechanically linked with the wave-shaped groove 8. This specially designed wave-shaped groove 8 uses the principle of cam mechanism to precisely control the reciprocating motion of the first piston plate 71 of the first blowing mechanism 7, thereby generating airflow, which is sprayed onto the surface of the workpiece through the first nozzle 74 to effectively remove surface dust.

[0049] When the workpiece is pushed directly above the mold groove 5, the pusher mechanism 6 moves to coincide with the groove 31. The pusher mechanism 6 expands, causing the workpiece to lose its limit. At this time, the workpiece falls precisely into the cavity of the mold groove 5 under the action of gravity. At the same time, the continued movement of the pusher mechanism 6 triggers the second blowing mechanism 9 to work, thereby causing the second nozzle 96 of the second blowing mechanism 9 to blow the cavity of the mold groove 5 to ensure that there are no residues in the cavity. Finally, the stamping mechanism 4 performs precision stamping on the workpiece.

[0050] To better demonstrate a lightweight floor frame structure stamping device, this embodiment presents a method for using the lightweight floor frame structure stamping device, including the following steps:

[0051] Step 1: First, place the workpiece into the pusher mechanism 6, and then push the workpiece toward the mold groove 5 through the pusher mechanism 6. When the pusher mechanism 6 moves to separate from the groove 31, the pusher mechanism 6 retracts to clamp the workpiece and corrects the position of the workpiece at the same time.

[0052] Step 2: Control the first blowing mechanism 7 to continuously spray airflow through the wave-shaped groove 8, thereby blowing the surface of the workpiece through the sprayed airflow;

[0053] Step 3: When the workpiece moves to the mold groove 5, the pusher mechanism 6 overlaps with another groove 31. At this time, the pusher mechanism 6 expands, causing the workpiece to lose its limit and fall into the mold groove 5. As the pusher mechanism 6 moves, it controls the movement of the second blowing mechanism 9, and then the workpiece is stamped and formed by the stamping mechanism 4.

[0054] Step 4: After the workpiece is stamped, the stamping mechanism 4 is reset. Then, the first electric push rod 11 pushes the ejector rod 12 to move and remove the workpiece. The pusher mechanism 6 is then reset to its initial state to facilitate subsequent actions. As the pusher mechanism 6 separates from the second blowing mechanism 9, the second blowing mechanism 9 sprays air to blow the inner wall of the mold groove 5.

[0055] The above are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A lightweight rear floor frame structure stamping device, comprising a base frame (1) and a top frame (2), characterized in that: The top surface of the base frame (1) is fixedly provided with two guide plates (3), the top frame (2) is fixedly provided on the top surface of the two guide plates (3), the bottom surface of the top frame (2) is provided with a stamping mechanism (4), the base frame (1) is recessed and provided with a mold groove (5) corresponding to the stamping mechanism (4), the right end of the base frame (1) is provided with a pushing mechanism (6), the pushing mechanism (6) is provided with a first blowing mechanism (7), the top surface of the base frame (1) is provided with a wave-shaped groove (8), the bottom of the first blowing mechanism (7) slides with the inner wall of the wave-shaped groove (8), and the guide plate (3) is provided with a second blowing mechanism (9). The bottom surface of the base frame (1) is provided with a first electric push rod (11), and the extended end of the first electric push rod (11) is fixedly provided with a top material rod (12). The upper end of the top material rod (12) is inserted into the mold groove (5) and is flush with the inner bottom wall of the mold groove (5). The guide plate (3) has two grooves (31) on its side wall. One groove (31) is located at the right end of the guide plate (3), and the other groove (31) is located at the position corresponding to the mold groove (5) on the guide plate (3). The edges of the inner walls of the two grooves (31) are rounded. The pushing mechanism (6) includes a second electric push rod (61) and a horizontal plate (62). The second electric push rod (61) is fixedly installed on the top surface of the base frame (1). The horizontal plate (62) is fixedly installed at the extended end of the second electric push rod (61). Slide grooves (63) are provided at both ends of the horizontal plate (62). Clamping plates (64) are slidably installed in both slide grooves (63). A guide rod (65) is fixedly installed on the side of the clamping plate (64) facing the guide plate (3). The guide rod (65) is located in the right groove (31) and slides in cooperation with the inner wall of the right groove (31). The clamping plate (64) includes a slider (641) and a movable plate (642). The slider (641) is located in the slide groove (63) and slides in cooperation with the inner wall of the slide groove (63). The movable plate (642) is fixedly disposed at one end of the slider (641) that extends out of the slide groove (63). The slider (641) is connected to the inner wall of the slide groove (63) by a first spring (643). The movable plate (642) has a movable cavity (644) inside. A support plate (645) is fixedly disposed on the bottom surface of the movable plate (642). The support plate (645) is triangular in shape. The first purging mechanism (7) includes a first piston plate (71) and a first round rod (72). The first piston plate (71) is movably disposed in the movable cavity (644). One end of the first round rod (72) is inserted into the movable plate (642) and fixedly connected to the first piston plate (71). The other end of the first round rod (72) slides in cooperation with the inner wall of the wave-shaped groove (8). The first piston plate (71) is connected to the inner bottom wall of the movable cavity (644) by a second spring (73). A plurality of first nozzles (74) are fixedly inserted into the top surface of the movable plate (642). The air outlet end of the first nozzle (74) is bent toward the base frame (1).

2. The lightweight floor frame structure stamping device according to claim 1, characterized in that: The stamping mechanism (4) includes a cylinder (41) and a stamping block (42). The cylinder (41) is fixedly mounted on the bottom surface of the top frame (2). The stamping block (42) is fixedly mounted on the extended end of the cylinder (41). A limit rod (43) is fixedly mounted on the side wall of the stamping block (42). The end of the limit rod (43) away from the stamping block (42) slides in cooperation with the inner side wall of the top frame (2). The side wall of the stamping block (42) is provided with an infrared sensor (44) for detecting the position of the workpiece, and the infrared sensor (44) is electrically connected to the cylinder (41).

3. The lightweight floor frame structure stamping device according to claim 1, characterized in that: The inner wall of the left end of the guide plate (3) is provided with a cavity (32), the second blowing mechanism (9) is disposed in the cavity (32), and the cavity (32) is connected to the inner wall of the left groove (31).

4. The lightweight floor frame structure stamping device according to claim 3, characterized in that: The second blowing mechanism (9) includes a second piston plate (91) and a second round rod (92). The second piston plate (91) is movably disposed in the cavity (32). The second piston plate (91) is connected to the inner wall of the cavity (32) by a third spring (93). One end of the second round rod (92) is inserted into the cavity (32) and fixedly connected to the second piston plate (91). The second round rod (92) is inserted into the groove (31). A hollow plate (94) is fixedly disposed on the top surface of the guide plate (3). The hollow plate (94) is connected to the cavity (32) by a guide pipe (95). Several second nozzles (96) are fixedly inserted into the side wall of the hollow plate (94). The outlet end of the second nozzle (96) is bent toward the mold groove (5).

5. A method of using a lightweight post-floor frame structure stamping device, comprising the lightweight post-floor frame structure stamping device as described in any one of claims 1-4, characterized in that, It also includes the following steps: S101: First, the workpiece is placed into the pusher mechanism (6), and then the pusher mechanism (6) pushes the workpiece toward the mold groove (5). When the pusher mechanism (6) moves to separate from the groove (31), the pusher mechanism (6) retracts to clamp the workpiece and corrects the position of the workpiece at the same time. S102: The first blowing mechanism (7) is controlled by the wave-shaped groove (8) to continuously spray airflow, thereby blowing the surface of the workpiece through the sprayed airflow; S103: When the workpiece moves to the mold groove (5), the pusher mechanism (6) overlaps with another groove (31). At this time, the pusher mechanism (6) expands, causing the workpiece to lose its limit and fall into the mold groove (5). As the pusher mechanism (6) moves, it controls the movement of the second blowing mechanism (9), and then the workpiece is stamped and formed by the stamping mechanism (4). S104: After the workpiece is stamped, the stamping mechanism (4) is reset, and then the first electric push rod (11) pushes the ejector rod (12) to move to remove the workpiece. Then the pusher mechanism (6) is reset to the initial state to facilitate subsequent actions. As the pusher mechanism (6) separates from the second blowing mechanism (9), the second blowing mechanism (9) sprays airflow to blow the inner wall of the mold groove (5).

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