Sectional type stamping one-time forming equipment for automobile plate

Abstract

The invention discloses automobile plate sectional type stamping one-time forming equipment which comprises the following steps that S1, plate feeding is conducted, specifically, to-be-stamped automobile plate raw materials are placed at the designated feeding position of machining equipment, and accurate initial positioning is conducted on the plates through a positioning device; s2, punch forming is conducted, specifically, the automobile plate is bent and punched through machining equipment; and S3, plate demolding is conducted, specifically, after punch forming is completed, the formed automobile plate is separated from the punching mold through a demolding device and conveyed to a designated discharging position. And related components of the mold in the equipment are exquisite in design, rapid replacement and adjustment of the mold can be realized, and the production flexibility is greatly improved. And the bending groove and the stamping hole are elaborately formed in the lower die, so that the plate can be effectively prevented from being deformed in the machining process, and the product quality is powerfully guaranteed. And due to the rotating function of the lower die, the special requirement for punching in the inclined side face is met, and the machining style is enriched.

Description

Technical Field

[0001] The present invention relates to the technical field of automotive panel processing, and particularly to a segmented stamping and one-time forming device for automotive panels. Background Art

[0002] In the automotive manufacturing industry, the stamping process of automotive panels is a crucial link. The quality and performance of automotive panels directly affect aspects such as the overall safety, appearance, and comfort of the vehicle.

[0003] Traditional stamping processes for automotive panels have many deficiencies. On the one hand, the multi-station step-by-step stamping method is mostly used. This method requires different processing operations to be carried out sequentially at different stations, such as first performing bending and then punching, resulting in a cumbersome production process, complex procedures, and low production efficiency. Moreover, during the multi-station processing, the transfer and positioning of the panel between different stations are prone to errors, affecting the dimensional accuracy and forming quality of the panel.

[0004] In addition, even in the existing process of one-time stamping, it includes operations such as drilling and stamping. The panel processing includes steps such as stamping and bending, and stamping holes. During stamping, due to the influence of metal ductility after bending or punching in the previous process, there will be a phenomenon of thinning in the bent part or the punched part. If work is carried out near the bent or punched part in the next process, the bent or punched part in the previous process may be slightly deformed, which will not only cause defects in the product, reduce the product quality, but also seriously damage the structure of the workpiece, resulting in waste parts, causing waste of materials and an increase in production costs.

[0005] Therefore, it is necessary to design a segmented stamping and one-time forming device for automotive panels to solve the above problems. Summary of the Invention

[0006] The purpose of the present invention is to solve the deficiencies existing in the prior art, and a segmented stamping and one-time forming device for automotive panels is proposed. The single-station processing method is adopted, which greatly reduces the processing procedures, effectively avoids the errors caused by multi-station transfer, and significantly improves the processing accuracy of automotive panels. The die-related components in the device are exquisitely designed, enabling rapid replacement and adjustment of the die, greatly improving the production flexibility. The carefully arranged bending grooves and stamping holes on the lower die can effectively prevent the panel from deforming during processing, strongly guaranteeing the product quality. The rotation function of the lower die meets the special requirements of punching on the oblique side, enriching the processing styles.

[0007] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0008] A one-step forming device for segmented stamping of automobile panels comprises the following steps:

[0009] S1 Sheet loading: Place the raw materials of the automobile sheet to be stamped on the designated loading position of the processing equipment, and use the positioning device to accurately position the sheet initially;

[0010] S2 stamping: using processing equipment to bend and punch automobile plates;

[0011] S3 Plate demoulding: After the stamping is completed, the molded automobile plate is separated from the stamping die through the demoulding device and transported to the designated unloading position;

[0012] S4 Quality Inspection: Check the appearance and dimensional accuracy of the automobile panels after cutting, and eliminate unqualified products.

[0013] Preferably, the processing equipment includes a workbench, the upper end of the workbench is fixedly connected to a plurality of support rods, the upper ends of the plurality of support rods are commonly fixedly connected to a top plate, a lower mold is provided above the workbench, a first hydraulic cylinder is installed at the upper end of the top plate, and two connecting components are provided at the lower end of the top plate, the lower end of the connecting component on the left is fixedly connected to the upper mold, and the lower end of the connecting component on the right is fixedly connected to a strip plate, the lower end of the strip plate is fixedly connected to a plurality of punching heads, and the first hydraulic cylinder is connected to the two connecting components via a limit assembly.

[0014] Preferably, the connecting component includes a rectangular plate, the lower end of the rectangular plate is fixedly connected to a square block, the upper end of the rectangular plate is fixedly connected to a square frame, a magnetic plate is sealingly and slidingly connected inside the square frame, the magnetic plate and the adjacent side of the rectangular plate are elastically connected by a third spring, and limiting holes are provided on the front and rear sides of the square frame.

[0015] Preferably, the limit assembly comprises a connection block fixedly connected to the lower end of the first hydraulic cylinder, the connection block is provided with a through slot, an electromagnet is fixedly connected in the through slot, and a limit block cooperating with two limit holes is slidably connected in the through slot.

[0016] Preferably, a plurality of fixed blocks are fixedly connected to the lower end of the top plate, and adjacent sides of every two matching fixed blocks are rotatably connected with a threaded rod, two threaded rods are threadedly connected with two L-shaped blocks, the right sides of the two threaded rods pass through the corresponding fixed blocks, the two threaded rods are connected by a transmission assembly, the upper ends of the plurality of L-shaped blocks are slidably connected to the top plate, and a clamping assembly is jointly arranged on every two matching L-shaped blocks and the corresponding square blocks, a driving motor is installed on the fixed block on the left, and the output shaft end of the driving motor is fixedly connected to the threaded rod on the front side.

[0017] Preferably, the clamping component includes rectangular grooves provided on the adjacent sides of two L-shaped blocks. Insert blocks are slidably connected in both of the two rectangular grooves. The two insert blocks are elastically connected to the inner walls of the corresponding rectangular grooves through first springs. Sliding grooves are provided on the front and rear sides of the square block. Top blocks are slidably connected in both of the two sliding grooves. The two sliding grooves communicate with the bottom space of the square frame through vertical pipes.

[0018] Preferably, a bending groove is provided at the upper end of the lower die. A plurality of punching holes are provided on the upper end of the lower die, the inner bottom of the bending groove, and the inner walls on the left and right sides of the bending groove.

[0019] Preferably, a through hole is provided on the workbench. A rotating rod is rotatably connected to the front and rear sides of the workbench together. The lower end of the lower die is fixedly connected to the rotating rod. A control box is provided on the front side of the workbench. A third hydraulic cylinder is fixedly connected to the right inner wall of the control box. The telescopic end of the third hydraulic cylinder is fixedly connected to a moving block. A rack is fixedly connected to the left side of the moving block. The front side of the rotating rod extends into the control box and is fixedly connected to a gear.

[0020] Preferably, two second hydraulic cylinders are fixedly connected to the lower end of the rectangular plate on the left side. The telescopic ends of the two second hydraulic cylinders are both fixedly connected to pressing plates.

[0021] Preferably, a slide rail is provided at the lower end of the square block on the right side. The strip-shaped plate is slidably connected to the slide rail. A pneumatic rod is fixedly connected to the right side of the square block on the right side. The telescopic end of the pneumatic rod is fixedly connected to a connecting rod. The left side of the connecting rod is fixedly connected to the strip-shaped plate.

[0022] The present invention has the following beneficial effects:

[0023] 1. Compared with the prior art, the single-station segmented stamping one-time forming preparation process for automotive panels of the present invention adopts a single-station processing method, and various processing operations such as bending and punching of automotive panels can be realized on the same station, without the need to transfer the panels between different stations like traditional multi-station step-by-step stamping, avoiding the errors generated during the transfer and positioning of the panels, effectively improving the dimensional accuracy and forming quality of automotive panels, reducing the processing procedures at the same time, and significantly improving the production efficiency;

[0024] 2. Compared with the prior art, the structural design of the connecting component, the limiting component, the clamping component, etc. of the processing equipment in the present invention is ingenious. The cooperation of the magnetic plate, the third spring, etc. in the connecting component, the cooperation of the electromagnet, the limiting block, etc. in the limiting component, and the settings of the inserting block, the first spring, the top block, etc. in the clamping component enable the mold to be replaced and adjusted quickly and conveniently. When different specifications or shapes of automotive panels need to be produced, the mold can be quickly replaced, greatly improving the flexibility of the equipment, reducing the time cost and labor cost brought by mold replacement and debugging, and meeting the diverse production needs;

[0025] 3. Compared with the prior art, the rotation function of the lower mold can make the mold in a suitable angle for punching operations on the inclined side, enriching the processing types and styles of automotive panels, meeting the processing requirements for complex-shaped panels in automotive manufacturing, and further enhancing the practicality of the process and equipment of the present invention;

[0026] 4. Compared with the prior art, the existence of the bending groove effectively restricts the bent part of the sheet. During the punching operation, it can stably fix the bent part of the sheet to prevent it from shifting or deforming during the punching process. At the same time, the reasonable layout and design of the punching holes enable the punching operation to be carried out accurately without causing additional adverse effects on the existing bent or punched parts, thus ensuring the stability and integrity of the automotive panel during the processing, greatly guaranteeing the quality of the automotive panel, reducing the scrap rate caused by panel deformation, and improving the production efficiency.

[0027] In summary, the single-station segmented stamping and one-time forming preparation process and supporting equipment for automotive panels of the present invention have obvious advantages compared with the prior art in terms of production efficiency, equipment flexibility, product quality guarantee, and processing diversity. Single-station processing reduces process errors, the ingenious design of the mold components facilitates mold replacement, the special structure of the lower mold guarantees the forming quality of the panel, the rotation function expands the processing range, and the present invention provides a better solution for the stamping forming of automotive panels, with good application prospects and economic value. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a schematic structural diagram of a segmented stamping and one-time forming equipment for automotive panels proposed by the present invention;

[0029] Figure 2 is Figure 1 the front-side structural diagram;

[0030] Figure 3 is Figure 1 the structural diagram from another perspective;

[0031] Figure 4 is the structural diagram of the first hydraulic cylinder;

[0032] Figure 5 is Figure 4 a half-sectional view of;

[0033] Figure 6 is a structural schematic diagram of a connecting component;

[0034] Figure 7 is Figure 6 a half-sectional view of.

[0035] In the figure: 1 workbench, 2 lower die, 3 support rod, 4 top plate, 5 first hydraulic cylinder, 6 drive motor, 7 threaded rod, 8 transmission component, 9 square block, 10 pneumatic rod, 11 connecting rod, 12 strip plate, 13 stamping head, 14 upper die, 15 second hydraulic cylinder, 16 pressing plate, 17 L-shaped block, 18 control box, 19 third hydraulic cylinder, 20 moving block, 21 rotating rod, 22 rack, 23 gear, 24 first spring, 25 inserting block, 26 connecting block, 27 limiting block, 28 electromagnet, 29 second spring, 30 rectangular plate, 31 square frame, 32 limiting hole, 33 top block, 34 magnetic plate, 35 third spring, 36 sliding groove, 37 fixing block, 38 through hole, 39 stamping hole. Specific implementation manner

[0036] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention.

[0037] Referring to Figures 1-7 , a segmented stamping and one-time forming device for automotive sheet metal includes the following steps:

[0038] S1 Sheet metal feeding: Place the raw material of the automotive sheet metal to be stamped at the designated feeding position of the processing equipment, and perform precise initial positioning on the sheet metal through the positioning device;

[0039] S2 Stamping and forming: Use the processing equipment to perform bending and punching on the automotive sheet;

[0040] S3 Sheet metal demoulding: After stamping and forming, separate the formed automotive sheet metal from the stamping die through the demoulding device and convey it to the designated discharging position;

[0041] S4 Quality inspection: Inspect the appearance and dimensional accuracy of the automotive sheet metal after discharging, and reject unqualified products.

[0042] Among them, the processing equipment includes a workbench 1. At the upper end of the workbench 1, a plurality of support rods 3 are fixedly connected. These support rods 3 play a role in stable support to ensure the stability of the upper structure. At the upper ends of the plurality of support rods 3, a top plate 4 is fixedly connected together. Above the workbench 1, a lower die 2 is provided. At the upper end of the lower die 2, a bending groove is provided. The shape and size of the bending groove are precisely designed according to the bending requirements of automotive sheet metal parts, and can play an accurate limiting role in the bending of the sheet. On the upper end, the inner bottom of the bending groove, and the left and right inner side walls of the bending groove of the lower die 2, a plurality of punching holes 39 are provided. The layout and specifications of these punching holes 39 are carefully planned to meet the punching requirements of different positions and shapes. At the upper end of the top plate 4, a first hydraulic cylinder 5 is installed. At the lower end of the top plate 4, two connecting components are provided. At the lower end of the connecting component on the left side, an upper die 14 is fixedly connected. At the lower end of the connecting component on the right side, a strip plate 12 is fixedly connected. At the lower end of the strip plate 12, a plurality of punching heads 13 are fixedly connected. The first hydraulic cylinder 5 is connected to the two connecting components through a limiting component.

[0043] Among them, the connecting component includes a rectangular plate 30. At the lower end of the rectangular plate 30, a square block 9 is fixedly connected. At the upper end of the rectangular plate 30, a square frame 31 is fixedly connected. Inside the square frame 31, a magnetic plate 34 is hermetically and slidably connected. The adjacent side of the magnetic plate 34 and the rectangular plate 30 is elastically connected by a third spring 35. The third spring 35 can provide an elastic restoring force after the magnetic plate 34 is moved by an external force, so that it returns to the initial position or remains in a suitable position. On the front and back sides of the square frame 31, limiting holes 32 are provided. The limiting component includes a connecting block 26 fixedly connected to the lower end of the first hydraulic cylinder 5. The connecting block 26 is made of iron material. The adjacent side of the connecting block 26 and the magnetic plate 34 attracts each other with opposite polarity. A through groove is provided on the connecting block 26. Inside the through groove, an electromagnet 28 is fixedly connected. Inside the through groove, a limiting block 27 that cooperates with the two limiting holes 32 is slidably connected. At the lower end of the rectangular plate 30 on the left side, two second hydraulic cylinders 15 are fixedly connected. The second hydraulic cylinders 15 can precisely control the downward pressure and position of the pressing plates 16, and effectively press and flatten the two ends of the raw material. The telescopic ends of the two second hydraulic cylinders 15 are fixedly connected with pressing plates 16. At the lower end of the square block 9 on the right side, a slide rail is provided. The strip plate 12 is slidably connected to the slide rail. On the right side of the square block 9 on the right side, a pneumatic rod 10 is fixedly connected. The telescopic end of the pneumatic rod 10 is fixedly connected with a connecting rod 11. The left side of the connecting rod 11 is fixedly connected with the strip plate 12. Through the telescopic action of the pneumatic rod 10, the connecting rod 11 and the strip plate 12 can be driven to move on the slide rail, so as to realize the punching operation on different positions of the raw material.

[0044] Among them, a plurality of fixing blocks 37 are fixedly connected to the lower end of the top plate 4. The adjacent sides of every two cooperating fixing blocks 37 are jointly rotatably connected with a threaded rod 7. Two L-shaped blocks 17 are threadedly connected to both threaded rods 7. The right sides of the two threaded rods 7 penetrate through the corresponding fixing blocks 37. The two threaded rods 7 are drivingly connected through a transmission assembly 8. The transmission assembly 8 includes sprockets arranged on the two threaded rods 7, and the two sprockets are drivingly connected through a chain. The upper ends of the plurality of L-shaped blocks 17 are slidably connected to the top plate 4. A clamping assembly is jointly arranged on every two cooperating L-shaped blocks 17 and the corresponding square block 9. A driving motor 6 is installed on the left fixing block 37, and the end of the output shaft of the driving motor 6 is fixedly connected to the front threaded rod 7.

[0045] Among them, the clamping assembly includes rectangular grooves arranged on the adjacent sides of the two L-shaped blocks 17. Insertion blocks 25 are slidably connected in both rectangular grooves. The four sides of each insertion block 25 close to the square block 9 are arc surfaces. The two insertion blocks 25 and the inner walls of the corresponding rectangular grooves are elastically connected through a first spring 24. The first spring 24 can provide elastic buffering when the insertion block 25 is subjected to an external force, and after the external force disappears, make the insertion block 25 return to the initial position to ensure the stability of clamping. Slide grooves 36 are arranged on the front and rear sides of the square block 9. Top blocks 33 are slidably connected in both slide grooves 36. The two slide grooves 36 and the bottom space of the square frame 31 are communicated through vertical pipes.

[0046] Among them, a through hole 38 is arranged on the workbench 1. The front and rear sides of the workbench 1 are jointly rotatably connected with a rotating rod 21. The lower end of the lower die 2 is fixedly connected to the rotating rod 21. A control box 18 is arranged on the front side of the workbench 1. A third hydraulic cylinder 19 is fixedly connected to the right inner wall of the control box 18. The telescopic end of the third hydraulic cylinder 19 is fixedly connected to a moving block 20. A rack 22 is fixedly connected to the left side of the moving block 20. The front side of the rotating rod 21 extends into the control box 18 and is fixedly connected to a gear 23. The third hydraulic cylinder 19 drives the moving block 20 and the rack 22 to move through telescopic action, so that the gear 23 rotates, and further realizes the rotation of the lower die 2 to meet the special requirement of punching on the inclined side.

[0047] The functional principle of the present invention can be elaborated through the following operation mode: In the initial state, the electromagnet 28 is in the energized state, and the upper die 14 is located directly above the lower die 2. At this time, the energized electromagnet 28 generates a repulsive force on the two limit blocks 27. The two limit blocks 27 penetrate through the corresponding limit holes 32 to connect the first hydraulic cylinder 5 with the left connecting component. At this time, since the magnetic plate 34 is in a compressed state, the gas at the bottom of the square frame 31 will be pressed into the two slide grooves 36. The opposite sides of the two top blocks 33 are flush with the front and rear sides of the square block 9, so that the corresponding insertion blocks 25 are not located in the slide grooves 36, so that the left connecting component is not limited in the front-rear direction;

[0048] Place the raw material of the automotive panel to be processed above the lower die 2, start the first hydraulic cylinder 5 to stretch it, thereby driving the connecting component on the left side and the upper die 14 to move downward, and cooperate with the lower die 2 to bend the automotive sheet placed on the lower die 2. Since the upper end of the lower die 2 is provided with a bending groove, the sheet is bent according to the preset shape and angle under the limitation of the bending groove. After the bending is completed, control the two second hydraulic cylinders 15 to stretch, so that the two pressing plates 16 move downward, press the two ends of the raw material downward, and further flatten the two ends of the raw material, so that the part of the raw material above the lower die 2 is in a horizontal state;

[0049] After the raw material is bent, at this time, control the first hydraulic cylinder 5 to contract to drive the upper die 14 to reset. During the reset process of the upper die 14, since the side of the insertion block 25 close to the square block 9 is an arc surface, the two square blocks 9 will move into the corresponding rectangular grooves. When the upper die 14 is completely reset, the insertion block 25 is now facing the corresponding top block 33;

[0050] At this time, the staff can cut off the power of the electromagnet 28, so that the two limit blocks 27 enter the through groove. Due to the attraction between the magnetic plate 34 and the connecting block 26, the upper die 14 will not fall at this time;

[0051] After releasing the limit on the left connecting component, control the first hydraulic cylinder 5 to contract to drive the connecting block 26 to move upward, thereby increasing the space at the bottom of the square frame 31 and reducing the air pressure, so that the two top blocks 33 enter the sliding groove 36. Under the elastic action of the first spring 24, the insertion block 25 enters the sliding groove 36, and then connects the two L-shaped blocks 17 on the left with the left connecting component. When the first hydraulic cylinder 5 contracts a certain distance, under the elastic action of the third spring 35, the connecting block 26 will be separated from the magnetic plate 34. At this time, the staff controls the driving motor 6 to run, so that the two connecting components move to the right, and then move the connecting component on the right to directly below the first hydraulic cylinder 5;

[0052] Then control the first hydraulic cylinder 5 to stretch, so that the connecting block 26 enters the square frame 31 below, connect the right connecting component with the first hydraulic cylinder 5, and as the first hydraulic cylinder 5 continues to stretch, the raw material can be punched;

[0053] During the punching process, the stretching or contraction of the pneumatic rod 10 can be controlled to punch different positions of the raw material;

[0054] For the case where punching needs to be performed on the oblique side, the third hydraulic cylinder 19 is activated. The telescopic end of the third hydraulic cylinder 19 pushes the moving block 20 to move, and the rack 22 on the left side of the moving block 20 moves accordingly. The rack 22 meshes with the gear 23 at the front end of the rotating rod 21, driving the rotating rod 21 to rotate, and further rotating the lower die 2 fixed on the rotating rod 21 to an appropriate angle, so that the punching head 13 at the lower end of the strip plate 12 punches the oblique side of the plate member.

[0055] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes should be covered within the protection scope of the present invention.

Claims

1. A segmented stamping and one-time forming device for automotive panels, characterized in that, The following steps are involved: S1 Sheet loading: Place the raw materials of the automobile sheet to be stamped on the designated loading position of the processing equipment, and use the positioning device to accurately position the sheet initially; S2 stamping: using processing equipment to bend and punch automobile plates; S3 Plate demoulding: After the stamping is completed, the molded automobile plate is separated from the stamping die through the demoulding device and transported to the designated unloading position; S4 Quality Inspection: Check the appearance and dimensional accuracy of the automobile panels after cutting, and eliminate unqualified products.

2. The one-time forming equipment for segmented stamping of automotive panels according to claim 1, characterized in that: The processing equipment comprises a workbench (1), the upper end of the workbench (1) is fixedly connected to a plurality of support rods (3), the upper ends of the plurality of support rods (3) are commonly fixedly connected to a top plate (4), a lower mold (2) is provided above the workbench (1), a first hydraulic cylinder (5) is installed at the upper end of the top plate (4), and two connecting components are provided at the lower end of the top plate (4), the lower end of the connecting component located on the left is fixedly connected to an upper mold (14), and the lower end of the connecting component located on the right is fixedly connected to a strip plate (12), and the lower end of the strip plate (12) is fixedly connected to a plurality of punching heads (13), and the first hydraulic cylinder (5) is connected to the two connecting components via a limit assembly.

3. The one-time forming equipment for segmented stamping of automotive panels according to claim 2, characterized in that: The connection assembly comprises a rectangular plate (30), the lower end of the rectangular plate (30) is fixedly connected to a square block (9), the upper end of the rectangular plate (30) is fixedly connected to a square frame (31), a magnetic plate (34) is sealed and slidably connected inside the square frame (31), the magnetic plate (34) is elastically connected to the adjacent side of the rectangular plate (30) via a third spring (35), and limiting holes (32) are provided on both the front and rear sides of the square frame (31).

4. The one-time forming equipment for segmented stamping of automotive panels according to claim 3, characterized in that: The limit assembly comprises a connection block (26) fixedly connected to the lower end of the first hydraulic cylinder (5), the connection block (26) being provided with a through slot, an electromagnet (28) being fixedly connected in the through slot, and a limit block (27) matching with two limit holes (32) being slidably connected in the through slot.

5. The one-time forming equipment for segmented stamping of automotive panels according to claim 3, characterized in that: A plurality of fixing blocks (37) are fixedly connected to the lower end of the top plate (4); adjacent sides of each two matching fixing blocks (37) are rotatably connected to a threaded rod (7); two L-shaped blocks (17) are threadedly connected to the two threaded rods (7); the right sides of the two threaded rods (7) pass through the corresponding fixing blocks (37); the two threaded rods (7) are transmission-connected via a transmission assembly (8); the upper ends of the plurality of L-shaped blocks (17) are slidably connected to the top plate (4); a clamping assembly is commonly provided on each two matching L-shaped blocks (17) and the corresponding square block (9); a driving motor (6) is mounted on the fixing block (37) on the left side; the output shaft end of the driving motor (6) is fixedly connected to the threaded rod (7) on the front side.

6. The one-time forming equipment for segmented stamping of automotive panels according to claim 5, characterized in that: The clamping component includes rectangular grooves provided on the adjacent sides of two L-shaped blocks (17). Insert blocks (25) are slidably connected in both of the two rectangular grooves. The two insert blocks (25) are elastically connected to the inner walls of the corresponding rectangular grooves through first springs (24). Slide grooves (36) are provided on the front and rear sides of the square block (9). Top blocks (33) are slidably connected in both of the two slide grooves (36). The two slide grooves (36) communicate with the bottom space of the square frame (31) through vertical pipes.

7. An automotive panel segmented stamping and one-time forming device according to claim 5, characterized in that: A bending groove is provided at the upper end of the lower die (2). A plurality of stamping holes (39) are provided on the upper end, the inner bottom of the bending groove, and the left and right inner walls of the bending groove of the lower die (2).

8. The one-time forming equipment for segmented stamping of automotive panels according to claim 2, characterized in that: A through hole (38) is provided on the workbench (1). A rotating rod (21) is rotatably connected to the front and rear sides of the workbench (1). The lower end of the lower die (2) is fixedly connected to the rotating rod (21). A control box (18) is provided on the front side of the workbench (1). A third hydraulic cylinder (19) is fixedly connected to the right inner wall of the control box (18). The telescopic end of the third hydraulic cylinder (19) is fixedly connected to a moving block (20). A rack (22) is fixedly connected to the left side of the moving block (20). The front side of the rotating rod (21) extends into the control box (18) and is fixedly connected to a gear (23).

9. The one-time forming equipment for segmented stamping of automotive panels according to claim 2, wherein: Two second hydraulic cylinders (15) are fixedly connected to the lower end of the rectangular plate (30) on the left side. The telescopic ends of the two second hydraulic cylinders (15) are fixedly connected to pressing plates (16).

10. The one-time forming equipment for segmental stamping of automotive panels according to claim 1, characterized in that: A slide rail is provided at the lower end of the square block (9) on the right side. The strip-shaped plate (12) is slidably connected to the slide rail. A pneumatic rod (10) is fixedly connected to the right side of the square block (9) on the right side. The telescopic end of the pneumatic rod (10) is fixedly connected to a connecting rod (11). The left side of the connecting rod (11) is fixedly connected to the strip-shaped plate (12).

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