Double-acting side punching mechanism for automobile upper inner plate

Abstract

The utility model relates to the technical field of automobile part machining equipment, and discloses a double-acting side punching mechanism for an automobile upper inner plate, the double-acting side punching mechanism comprises a lower die base and an upper die base, a supporting type base is arranged on the lower die base, and abutting blocks are slidably arranged at the positions, corresponding to connecting kidney-shaped holes, of the lower die base and face the supporting type base; the multiple abutting blocks are located on the same side of the supporting type base, a first driving piece is arranged at the bottom of the upper die base, stamping blocks are slidably arranged at the positions, corresponding to the connecting kidney-shaped holes, of the lower die base and face the supporting type base, a second driving piece is arranged at the bottom of the upper die base, and a blanking head is arranged on the side, facing the supporting type base, of each stamping block. A side stripper plate is arranged in the supporting type base and corresponds to each connecting kidney-shaped hole, the blanking head penetrates through the side stripper plates in a sliding mode, a female die is arranged in an inner hole, communicated with the side stripper plates, of the abutting block, and the blanking head penetrates out of the side stripper plates in a sliding mode and is inserted into the female die. The punching device has the effect that the working efficiency of punching the connecting kidney-shaped holes in the automobile upper inner plate is improved.

Description

A double-acting side-punching mechanism for the inner panel of an automobile Technical Field

[0001] This application relates to the field of automotive parts processing equipment technology, and in particular to a double-acting side punching mechanism for an automotive upper inner panel. Background Technology

[0002] The field of automotive parts processing equipment technology has developed rapidly in recent years, especially in the manufacturing of automotive upper inner panels, where significant progress has been made. As a key component of the vehicle body structure, such as the A-pillar inner panel and door inner panel, automotive upper inner panels play a crucial role in absorbing and dispersing energy during a vehicle collision, thereby maintaining the overall structural stability of the vehicle body and effectively reducing the risk of injury to occupants. High-precision automotive upper inner panels not only make the vehicle body structure more complete and stable but also significantly enhance the vehicle body's resistance to deformation and safety, providing important support for the development of the modern automotive industry.

[0003] In actual production, to achieve precise forming of the upper inner panel of an automobile, a combination of punching and die processing is typically used. For example, pressure is applied to the sheet metal by a punching machine, causing it to undergo plastic deformation or separation, thereby obtaining a standard workpiece that meets design requirements. Furthermore, to ensure the connection accuracy of the upper inner panel with other components (such as side panels and the frame), through holes of specific shapes need to be punched at the connection points of the standard workpiece. If the connection accuracy between the upper inner panel and the side panels or frame is low, it will weaken the overall rigidity of the vehicle body, ultimately reducing its protective performance during a collision.

[0004] Referring to Figure 1, a standard workpiece 01 for an automotive upper inner panel includes a crossbeam 011 and a connecting part 012. The crossbeam 011 is curved to match the side profile of the vehicle body, and each crossbeam 011 has a horizontally penetrating connecting hole 0111 on its side wall to facilitate subsequent assembly and connection with other components (such as longitudinal beams, suspension, etc.). A connecting part 012 is provided at each end of the crossbeam 011, and the connecting parts 012 of two opposite crossbeams 011 are fixedly connected. Each connecting part 012 has a vertically opening positioning hole 0121.

[0005] The connecting waist holes on the standard workpieces of the aforementioned automotive upper inner panel are usually punched using a single-action side punch. The existing single-action side punch mechanism has low punching efficiency and can only complete the punching action in one direction or one part at a time. For automotive upper inner panels with complex shapes and many punching processes, multiple clamping and positioning are required, which not only consumes a lot of time but also easily causes positioning errors due to multiple clamping, affecting product accuracy. Summary of the Invention

[0006] In order to improve the efficiency of punching connecting waist holes on the upper inner panel of an automobile, this application provides a double-action side punching mechanism for the upper inner panel of an automobile.

[0007] The technical solution provided in this application for a double-acting side-impact mechanism for an automotive upper inner panel is as follows:

[0008] A double-acting side punching mechanism for an automotive upper inner panel includes a lower die base and an upper die base located above the lower die base. The lower die base is provided with a support base for mounting standard workpieces. A pressing block is slidably mounted on the lower die base towards the support base at each corresponding connecting hole, with several pressing blocks located on the same side of the support base to press the sidewall of the standard workpiece against the support base. The bottom of the upper die base is provided with a first driving member that drives the pressing blocks to slide towards the support base. The lower die base also has a corresponding connecting hole... Each connecting waist hole is slidably provided with a stamping block facing the support base. The bottom of the upper die base is provided with a second driving member that drives the stamping block to slide towards the support base. The side of the stamping block facing the support base is provided with a punching head that matches the size of the connecting waist hole. A side stripper plate is provided in the support base corresponding to each connecting waist hole. The punching head slides through the side stripper plate. A concave die is provided on the pressing block through the inner hole of the side stripper plate. The punching head slides out of the side stripper plate and inserts into the concave die.

[0009] By adopting the above technical solution, when punching multiple connecting waist holes on the inner panel of an automobile, the standard workpiece is first placed on a support base. Then, the downward pressing action of the upper die base synchronously drives the first and second driving components. Under the action of the first driving component, multiple pressing blocks slide simultaneously towards the support base, firmly pressing the sidewall of the standard workpiece onto the support base, effectively reducing the possibility of displacement of the standard workpiece during processing, thereby improving processing stability. Next, as the upper die base continues to press down, the second driving component drives multiple punching blocks to slide synchronously towards the support base, allowing the punching head to accurately penetrate the connecting waist hole position of the standard workpiece and push the waste material into the concave die for collection. This process achieves simultaneous punching of multiple connecting waist holes, significantly improving punching efficiency, reducing positioning errors caused by multiple clamping, and further improving the processing accuracy and production yield of the product.

[0010] Optionally, the first driving member is provided for each pressing block. The first driving member includes a pressure column provided on the bottom of the upper mold base and an inclined push block provided on the bottom of the pressure column. The inclined push block is provided on the side of the pressure column facing the pressing block. A support block is provided on the top side of the pressing block facing the inclined push block. An inclined surface is provided on the side of the support block facing the top of the inclined push block. The inclined push block pushes the support block to slide towards the support seat through the inclined surface.

[0011] By adopting the above technical solution, the inclined surface cooperation design between the inclined push block and the support block enables the vertical movement to be converted into horizontal thrust when the upper die seat descends, thereby pushing the pressing block to slide towards the support seat and effectively pressing against the side wall of the standard workpiece. This design not only improves the stability of the pressing action, but also significantly enhances the positioning accuracy during the punching process, providing a reliable guarantee for subsequent stamping processes.

[0012] Optionally, one second driving component is provided for each stamping block. The second driving component includes a driving column provided on the bottom of the upper die base and an inclined push plate provided on the bottom of the driving column. The inclined push plate is provided on the side of the driving column facing the stamping block. A support plate is provided on the top of the stamping block facing the inclined push plate. The inclined push plate and the support plate are engaged by an inclined surface. The inclined push plate pushes the support plate towards the support seat by the inclined surface, and the inclination degree of the inclined push plate is greater than the inclination degree of the inclined push block.

[0013] By adopting the above technical solution, the inclined surface cooperation between the upper inclined push plate and the support plate can effectively push the stamping block to slide towards the support seat, thereby achieving precise punching of the connecting waist hole. Since the inclination degree of the inclined push plate is greater than that of the inclined push block, the stamping block can obtain a greater horizontal displacement under the same stroke, thus improving the punching efficiency and accuracy of processing the connecting waist hole.

[0014] Optionally, the stamping block has insertion slots extending to the top wall on both sides of the inclined surface of the push plate. Limiting clamps are provided on both sides of the inclined surface of the push plate. The limiting clamps are L-shaped and the right-angled sides of the two limiting clamps are arranged opposite each other. When the upper mold base descends to the point where the inclined push plate and the push plate are in contact, the two limiting clamps slide in along the inclined surface of the push plate and are slidably inserted into the insertion slots.

[0015] By adopting the above technical solution, during the descent of the upper die base, the inclined push plate approaches and eventually contacts the support plate. When the inclined push plate and the support plate are in contact, two L-shaped limiting clamps with opposite right-angled sides can slide in along the inclined surface of the support plate and precisely slide onto the side wall of the support plate. The structural design of the L-shaped limiting clamps enhances the constraint effect on the support plate, reduces unnecessary displacement or vibration during the stress process, and ultimately improves the fitting accuracy between the punching head and the die, thereby improving the punching quality.

[0016] Optionally, the lower die base is provided with a sliding groove corresponding to the sliding direction of each stamping block. A slider is slidably disposed in the sliding groove and connected to the stamping block. A nitrogen spring is disposed in the sliding groove. The cylinder of the nitrogen spring is disposed on the inner end wall of the sliding groove near the support base, and the end of its piston rod is connected to the side wall of the slider. When the nitrogen spring is in the natural state, the slider and the inner end wall of the sliding groove away from the support base are in contact.

[0017] By adopting the above technical solution, when the upper die holder drives the stamping block to slide towards the support seat, the nitrogen spring is compressed until the stamping operation on the side wall of the standard workpiece is completed. After the stamping is completed, the upper die holder rises, the nitrogen spring returns to its natural state, and pushes the slider to drive the stamping block back to its initial position, thereby realizing an automated clamping and release process. This design not only improves operating efficiency but also effectively reduces manual intervention, enhances the continuity and stability of equipment operation, and further ensures stamping accuracy.

[0018] Optionally, the lower mold base is provided with multiple guide cones, and the bottom of the upper mold base is provided with multiple guide holes. The guide cones and guide holes correspond one-to-one and are vertically inserted into each other.

[0019] By adopting the above technical solution, during the descent of the upper die holder, the guide cone first inserts into the corresponding guide hole, thereby achieving precise alignment between the upper and lower die holders. Subsequently, the upper die holder continues to descend, sequentially completing the clamping of the standard workpiece and the punching operation of the connecting waist hole. This design effectively reduces the punching error caused by the offset due to the relative movement of the upper and lower die holders, significantly improving the product yield.

[0020] Optionally, it also includes a pressure mold, which is fitted with a support base at the bottom of the upper mold base to press the top wall of the standard workpiece against the support base. The pressure mold is also provided with a positioning pin corresponding to each positioning hole, and the top of the support base is provided with a positioning groove corresponding to each positioning hole. The positioning pin slides through the positioning hole and is inserted into the positioning groove.

[0021] By adopting the above technical solution, the die descends with the upper die base and, together with the support base, presses the top wall of the standard workpiece against the support base. At the same time, the positioning pin slides precisely through the positioning hole on the standard workpiece and engages with the positioning groove on the top of the support base, thereby achieving precise positioning of the standard workpiece in the horizontal and vertical directions, thus improving the stability of the standard workpiece during the punching process.

[0022] Optionally, the pressing block has a discharge channel that connects to the concave die, and the lower die base has a discharge port that connects to the discharge channel for collecting the blanking waste.

[0023] By adopting the above technical solution, the material discharge channel set in the pressure block and the material discharge port on the lower die base cooperate with each other to effectively guide the waste generated during the punching process to be discharged and collected smoothly, reducing the possibility of waste accumulating inside the equipment, thereby reducing the probability of equipment wear and failure caused by waste residue, and improving the operational stability and service life of the equipment.

[0024] In summary, this application includes at least one of the following beneficial technical effects:

[0025] 1. When punching multiple connecting waist holes on the inner panel of an automobile, a standard workpiece is first placed on a support base. Then, the downward pressing action of the upper die base synchronously drives the first and second driving components. Under the action of the first driving component, multiple pressing blocks slide simultaneously towards the support base, firmly pressing the sidewalls of the standard workpiece onto the support base, effectively reducing the possibility of displacement of the standard workpiece during processing, thereby improving processing stability. Next, as the upper die base continues to press down, the second driving component drives multiple punching blocks to slide synchronously towards the support base, allowing the punching head to accurately penetrate the connecting waist hole position of the standard workpiece and push the waste material into the concave die for collection. This process enables simultaneous punching of multiple connecting waist holes, significantly improving punching efficiency, reducing positioning errors caused by multiple clamping, and further improving the processing accuracy and production yield of the product.

[0026] 2. The inclined surface design between the inclined push block and the support block allows the vertical motion to be converted into horizontal thrust when the upper die seat descends, thereby pushing the pressing block towards the support seat and effectively clamping it against the side wall of the standard workpiece. This design not only improves the stability of the pressing action but also significantly enhances the positioning accuracy during the punching process, providing a reliable guarantee for subsequent stamping processes.

[0027] 3. The inclined surfaces between the upper push plate and the support plate effectively push the stamping block towards the support seat, achieving precise punching of the connecting waist hole. Because the inclination of the upper push plate is greater than that of the inclined push block, the stamping block can achieve a greater horizontal displacement under the same stroke, thereby improving the punching efficiency and accuracy of processing the connecting waist hole. Attached Figure Description

[0028] Figure 1 is a schematic diagram of a standard workpiece for an inner panel of an automobile in the prior art.

[0029] Figure 2 is a schematic diagram of the overall structure of an embodiment of this application.

[0030] Figure 3 is a cross-sectional view of the overall structure of an embodiment of this application.

[0031] Figure 4 is a schematic diagram of the structure of the lower mold base in an embodiment of this application.

[0032] Figure 5 is a schematic diagram of the upper mold base in an embodiment of this application.

[0033] Figure 6 is a schematic diagram of the structure of the compression mold in an embodiment of this application.

[0034] Explanation of reference numerals in the attached figures:

[0035] 01. Standard workpiece; 011. Crossbeam; 0111. Connecting waist hole; 012. Connecting part; 0121. Positioning hole; 1. Lower die base; 11. Pressing block; 111. Die cavity; 112. Pushing block; 113. Blanking channel; 12. Stamping block; 121. Punching head; 122. Pushing plate; 123. Insertion groove; 124. Slider; 13. Guide cone; 14. Slide groove; 15. Blanking port; 2. Upper die base; 21. Guide hole; 3. Press die; 31. Positioning pin; 4. Support base; 41. Side stripper plate; 42. Positioning groove; 5. First driving component; 51. Pressing column; 52. Inclined push block; 6. Second driving component; 61. Drive column; 62. Inclined push plate; 621. Limiting clamp; 7. Proximity switch; 71. Detection rod; 8. Nitrogen spring. Detailed Implementation

[0036] The present application will be further described in detail below with reference to Figures 2-6.

[0037] This application discloses a double-acting side-impact mechanism for the inner panel of an automobile.

[0038] Referring to Figures 2 and 3, a double-acting side punching mechanism for an automotive upper inner panel includes a lower die base 1, an upper die base 2, and a pressing die 3. The upper die base 2 is located directly above the lower die base 1. A support-type seat 4 for mounting a standard workpiece 01 is fixedly installed on the lower die base 1. The pressing die 3 is configured to match the shape of the support-type seat 4 and is installed at the bottom of the upper die base 2. When the upper die base 2 is pressed down, the top wall of the standard workpiece 01 is pressed against the support-type seat 4.

[0039] Referring to Figure 3, a pressing block 11 is slidably disposed on the lower die base 1 at each connecting waist hole 0111 facing the support base 4, and several pressing blocks 11 are located on the same side of the support base 4; a stamping block 12 is also slidably disposed on the lower die base 1 at each connecting waist hole 0111 facing the support base 4, and several stamping blocks 12 are located on the other side of the support base 4. A punching head 121 with the size matching the connecting waist hole 0111 is fixedly disposed on the side of the stamping block 12 facing the support base 4, and a side stripper plate 41 is embedded in the support base 4 at each connecting waist hole 0111, and the punching head 121 and the side stripper plate 41 are slidably engaged. A concave die 111 is disposed on the pressing block 11 through the inner hole of the side stripper plate 41, and the punching head 121 slides out of the side stripper plate 41 and is inserted into the concave die 111.

[0040] Referring to Figures 4 and 5, multiple guide cones 13 are fixedly arranged on the lower mold base 1. In this embodiment, two are used as an example, which are distributed near the middle of the lower mold base 1. The bottom of the upper mold base 2 has two guide holes 21. The guide cones 13 and the guide holes 21 correspond one-to-one and are vertically inserted.

[0041] Referring to Figures 3, 4, and 5, a first driving member 5 is provided at the bottom of the upper mold base 2 corresponding to each pressing block 11. The first driving member 5 includes a pressure column 51 and an inclined push block 52. The pressure column 51 is vertically fixed to the bottom wall of the upper mold base 2, and the inclined push block 52 is bolted to the side of the pressure column 51 facing the pressing block 11. A support block 112 is bolted to the top of the pressing block 11 facing the inclined push block 52. The support block 112 has an inclined surface on the top side facing the inclined push block 52. The inclined surface cooperation design between the inclined push block 52 and the support block 112 allows the vertical movement to be converted into horizontal thrust when the upper mold base 2 descends, thereby pushing the pressing block 11 to slide towards the support seat 4, achieving effective pressing against the side wall of the standard workpiece 01.

[0042] Referring to Figures 3, 4, and 5, a second driving member 6 is provided at the bottom of the upper die base 2 corresponding to each stamping block 12. The second driving member 6 includes a driving column 61 and an inclined push plate 62. The driving column 61 is fixed vertically on the bottom wall of the upper die base 2, and the inclined push plate 62 is fixed on the side of the pressure column 51 facing the pressure block 11. A support plate 122 is fixedly provided on the top side of the stamping block 12 facing the inclined push plate 62. The support plate 122 has an inclined surface on the top side facing the inclined push plate 62. Insertion grooves 123 are recessed on the side walls of the stamping block 12 on both sides of the inclined surface of the support plate 122. The top of the insertion grooves 123 extends to the top wall of the stamping block 12. Limiting clamps 621 are bolted to both sides of the inclined surface of the inclined push plate 62. In this embodiment, the limiting clamps 621 are L-shaped, with the right-angled sides of the two limiting clamps 621 facing each other. When the upper mold base 2 descends until the inclined push plate 62 is in contact with the support plate 122, the two limiting clamps 621 slide along the inclined surface of the support plate 122 and are inserted into the insertion groove 123. In this embodiment, the inclination of the inclined push plate 62 is greater than that of the inclined push block 52.

[0043] Referring to Figures 4 and 5, the limiting clamping plate 621 is made of high-hardness alloy material. Its right-angled edge design effectively prevents unnecessary displacement or vibration of the support plate 122 during the force process, thereby improving the fitting accuracy between the punching head 121 and the die 111. The inclined surface fit design between the inclined push plate 62 and the support plate 122 allows the upper die holder 2 to convert vertical movement into horizontal thrust when it descends, thereby pushing the stamping block 12 to slide towards the support seat 4, realizing the punching operation of the connecting waist hole 0111 of the standard workpiece 01.

[0044] Referring to Figures 3 and 4, to check the positional accuracy of the pressing block 11 and the stamping block 12 before the blanking operation, a proximity switch 7 is installed on one side of each pressing block 11 and stamping block 12 on the lower die base 1, and a detection rod 71 that mates with the proximity switch 7 is fixedly installed on the side wall of each pressing block 11 and stamping block 12. When all proximity switches 7 receive the signal from the detection rod 71 before the blanking operation, it means that the double-sided blanking mechanism has passed the test, and the blanking operation can then be carried out.

[0045] Referring to Figure 2, in order to improve the automation level of clamping standard workpiece 01, a slide groove 14 is provided on the lower die base 1 corresponding to the sliding direction of each stamping block 12. A slider 124 is slidably arranged in the slide groove 14 and is fixedly connected to the stamping block 12. A nitrogen spring 8 is installed in the slide groove 14. The cylinder of the nitrogen spring 8 is fixed on the inner end wall of the slide groove 14 near the support base 4, and the end of its piston rod is connected and fixed to the side wall of the slider 124. When the nitrogen spring 8 is in the natural state, the slider 124 and the inner end wall of the slide groove 14 away from the support base 4 are in contact. The slide groove 14 adopts a rectangular groove structure, and the nitrogen spring 8 can control the reset speed of the stamping block 12 by adjusting the inflation pressure, thereby realizing the automated clamping and release process.

[0046] Referring to Figure 2, in order to effectively guide the waste generated during the punching process to be discharged and collected smoothly, the pressing block 11 is provided with a discharge channel 113 that connects to the concave die 111, and the lower die base 1 is provided with a discharge port 15 that connects to the discharge channel 113.

[0047] Referring to Figures 4 and 6, in order to improve the clamping stability of the standard workpiece 01 during the punching process, a positioning pin 31 is fixedly provided on the die 3 for each positioning hole 0121, and a positioning groove 42 is provided on the top of the support base 4 for each positioning hole 0121. The positioning pin 31 slides through the positioning hole 0121 and is inserted into the positioning groove 42.

[0048] The implementation principle of a double-action side punching mechanism for an upper inner panel of an automobile is as follows: Before punching multiple connecting waist holes 0111 on the upper inner panel of the automobile, a standard workpiece 01 is placed on a support seat 4, and then the pressure column 51 and the drive column 61 are driven to descend synchronously through the downward pressing action of the upper die seat 2.

[0049] First, the guide cone 13 is inserted into the corresponding guide hole 21 to achieve the docking of the upper mold base 2 and the lower mold base 1; the upper mold base 2 continues to press down until the positioning pin 31 accurately slides through the positioning hole 0121 on the standard workpiece 01 and is engaged with the positioning groove 42 on the top of the support base 4, so that the standard workpiece 01 is precisely limited in the horizontal and vertical directions.

[0050] As the upper mold base 2 continues to press down, the inclined push block 52 on the pressure column 51 drives the pressure block 11 to slide towards the support base 4 through the inclined surface, firmly pressing the side wall of the standard workpiece 01 onto the support base 4.

[0051] Next, as the upper die holder 2 continues to press down, the inclined push plate 62 on the drive column 61 continues to push the stamping block 12 towards the support seat 4 using the inclined surface, so that the punch head 121 accurately penetrates the connecting waist hole 0111 of the standard workpiece 01 and pushes the waste into the die cavity 111. The waste enters the blanking port 15 from the blanking channel 113 and leaves the lower die holder 1 from the blanking port 15, which is convenient for centralized collection.

[0052] This process enables simultaneous punching of multiple connecting waist holes 0111, significantly improving punching efficiency, reducing positioning errors caused by multiple clamping, and further enhancing the product's processing accuracy and production yield.

[0053] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A double-acting side-punching mechanism for the inner panel of an automobile, characterized in that... The device includes a lower mold base (1) and an upper mold base (2) located above the lower mold base (1). The lower mold base (1) is provided with a support base (4) for mounting a standard workpiece (01). A pressing block (11) is slidably disposed on the lower mold base (1) towards the support base (4) at each connecting waist hole (0111). Several pressing blocks (11) are located on the same side of the support base (4) to press the side wall of the standard workpiece (01) against the support base (4). The bottom of the upper mold base (2) is provided with a first driving member (5) that drives the pressing block (11) to slide towards the support base (4). The lower mold base (1) is also provided with a pressing block (5) that drives the pressing block (11) to slide towards the support base (4) at each connecting waist hole (0111). A stamping block (12) is provided. The bottom of the upper die base (2) is provided with a second driving member (6) that drives the stamping block (12) to slide toward the support base (4). A punching head (121) that matches the size of the connecting waist hole (0111) is provided on the side of the stamping block (12) facing the support base (4). A side stripper plate (41) is provided in the support base (4) for each connecting waist hole (0111). The punching head (121) slides through the side stripper plate (41). A die cavity (111) is provided on the pressing block (11) through the inner hole of the side stripper plate (41). The punching head (121) slides out of the side stripper plate (41) and is inserted into the die cavity (111).

2. The double-acting side-punching mechanism for an automotive upper inner panel according to claim 1, characterized in that... The first driving member (5) is provided for each pressing block (11). The first driving member (5) includes a pressure column (51) provided on the bottom of the upper mold base (2) and an inclined push block (52) provided on the bottom of the pressure column (51). The inclined push block (52) is provided on the side of the pressure column (51) facing the pressing block (11). The top of the pressing block (11) is provided with a support block (112) on the side facing the inclined push block (52). The side of the support block (112) facing the top of the inclined push block (52) is provided with an inclined surface. The inclined push block (52) pushes the support block (112) to slide towards the support base (4) through the inclined surface.

3. The double-acting side-punching mechanism for the inner panel of an automobile according to claim 2, characterized in that... The second driving member (6) is provided for each stamping block (12). The second driving member (6) includes a driving column (61) provided on the bottom of the upper mold base (2) and an inclined push plate (62) provided on the bottom of the driving column (61). The inclined push plate (62) is provided on the side of the driving column (61) facing the stamping block (12). The top of the stamping block (12) is provided with a support plate (122) on the side facing the inclined push plate (62). The inclined push plate (62) and the support plate (122) are inclinedly engaged. The inclined push plate (62) pushes the support plate (122) towards the support seat (4) through the inclined surface. The inclination of the inclined push plate (62) is greater than that of the inclined push block (52).

4. A double-acting side-punching mechanism for an automotive upper inner panel according to claim 3, characterized in that... The stamping block (12) has insertion slots (123) extending to the top wall on both sides of the inclined surface of the push plate (122). Limiting clamps (621) are provided on both sides of the inclined surface of the inclined push plate (62). The limiting clamps (621) are L-shaped and the right angle sides of the two limiting clamps (621) are opposite to each other. When the upper mold base (2) descends to the point where the inclined push plate (62) and the push plate (122) are in contact, the two limiting clamps (621) slide in along the inclined surface of the push plate (122) and slide into the insertion slots (123).

5. A double-acting side-punching mechanism for an automotive upper inner panel according to claim 3, characterized in that... The lower die base (1) is provided with a sliding groove (14) corresponding to the sliding direction of each stamping block (12). A slider (124) is slidably arranged in the sliding groove (14). The slider (124) is connected to the stamping block (12). A nitrogen spring (8) is arranged in the sliding groove (14). The cylinder of the nitrogen spring (8) is arranged on the inner end wall of the sliding groove (14) near the support seat (4). The end of its piston rod is connected to the side wall of the slider (124). When the nitrogen spring (8) is in the natural state, the slider (124) and the inner end wall of the sliding groove (14) away from the support seat (4) are in contact.

6. A double-acting side-punching mechanism for an automotive upper inner panel according to claim 1, characterized in that... The lower mold base (1) is provided with multiple guide cones (13), and the bottom of the upper mold base (2) is provided with multiple guide holes (21). The guide cones (13) and guide holes (21) correspond one-to-one and are vertically inserted.

7. A double-acting side-punching mechanism for an automotive upper inner panel according to claim 1, characterized in that... It also includes a pressure mold (3), which is set at the bottom of the upper mold base (2) in conjunction with the support base (4) to press the top wall of the standard workpiece (01) against the support base (4). The pressure mold (3) is also provided with a positioning pin (31) corresponding to each positioning hole (0121). The top of the support base (4) is provided with a positioning groove (42) corresponding to each positioning hole (0121). The positioning pin (31) slides through the positioning hole (0121) and is inserted into the positioning groove (42).

8. The double-acting side-punching mechanism for an automotive upper inner panel according to claim 1, characterized in that, The pressing block (11) has a material discharge channel (113) that connects to the concave mold (111), and the lower mold base (1) has a material discharge port (15) that connects to the material discharge channel (113) for collecting the blanking waste.

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