A stamping die for the upper section of the inner panel of a D-pillar

Abstract

This utility model belongs to the field of stamping die technology and discloses a stamping die for the upper section of a D-pillar inner plate. It includes a base plate, a feeding plate fixedly connected to one side of the base plate, with a raw material plate placed on its upper end; a discharge plate fixedly connected to the other side of the base plate, with a D-pillar upper section stamping plate placed on its upper end; a die structure fixedly connected to the upper end of the base plate; and two loading / unloading mechanisms fixedly connected to the upper end of the base plate. By setting two symmetrically distributed loading / unloading mechanisms, the synchronous operation of feeding the raw material plate and unloading the stamped part is achieved. Compared with traditional manual single-station loading / unloading, this die can reduce process connection time, significantly shorten the stamping cycle, and effectively meet the needs of modern large-scale automobile production. Simultaneously, during production, operators do not need to approach the stamping equipment while it is running, fundamentally avoiding safety accidents such as pinching and crushing injuries caused by human error, thus improving the practicality of the stamping die.

Description

Technical Field

[0001] This utility model relates to the field of stamping die technology, specifically to a stamping die for the upper section of the inner plate of a D-pillar. Background Technology

[0002] Stamping dies are process equipment used in stamping to process materials (metal or non-metal) into the required shape. They are the core tools for realizing the stamping process. By working with stamping equipment (such as punch presses), they can efficiently and mass-produce parts with complex shapes and high precision requirements. They are widely used in manufacturing industries such as automobiles, electronics, home appliances, and aerospace.

[0003] In the current booming development of the automotive industry, automobile production efficiency and safety have become important indicators for measuring the competitiveness of car companies. As a key component of the automobile body structure, the D-pillar inner panel is connected with components such as the C-pillar, the rear crossbeam of the roof, and the lower D-pillar inner panel to jointly build a stable body structure, providing a solid guarantee for the stability and safety of the vehicle during driving. At the same time, with the increasingly fierce competition in the automotive market, car companies are paying more and more attention to the production efficiency and cost control of automotive parts.

[0004] Currently, for some D-pillar inner panels made of high-strength steel, the industry generally uses stamping to process the sheet metal into shape, and then welding them together to form a complete structure. However, in the stamping process of the upper part of the D-pillar inner panel, the traditional manual loading and unloading method has exposed many drawbacks. On the one hand, the speed of manual operation is limited, making it difficult to meet the pace requirements of modern large-scale automobile production, resulting in low production efficiency and seriously restricting the improvement of automobile production capacity. On the other hand, in the high-speed operating environment of the stamping equipment, frequent manual loading and unloading operations near dangerous areas can easily cause safety accidents and pose a serious threat to the personal safety of operators.

[0005] Based on this, this utility model designs an upper section stamping die for the inner plate of a D-pillar to solve the above problems. Utility Model Content

[0006] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a stamping die for the upper section of the inner plate of a D-pillar.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A stamping die for the upper section of a D-pillar inner plate includes a base plate. A feeding plate is fixedly connected to one side of the base plate, and a raw material plate is placed on the upper part of the feeding plate. A discharging plate is fixedly connected to the other side of the base plate, and a stamping plate for the upper section of the D-pillar is placed on the upper part of the discharging plate. A die structure is fixedly connected to the upper end of the base plate. Two loading and unloading mechanisms are fixedly connected to the upper end of the base plate. Each loading and unloading mechanism includes a base. The lower end of the base is fixedly connected to the upper end of the base plate. A rotating component is fixedly connected to the inner wall of the base. A lifting component is fixedly connected to the upper part of the rotating component by bolts. A gripping component is fixedly connected to the lower part of the lifting component by bolts.

[0009] Furthermore, the mold structure includes a mold base plate, the lower end of which is fixedly connected to the upper end of another base plate. Multiple guide rods are fixedly connected to the upper end of the mold base plate, and the upper ends of the multiple guide rods are jointly fixedly connected to a mold top plate. A hydraulic cylinder is fixedly connected to the upper end of the mold top plate, and a moving plate is fixedly connected to the output end of the hydraulic cylinder. The inner surface of the moving plate is slidably connected to the outer surfaces of the multiple guide rods. An upper mold is fixedly connected to the lower end of the moving plate, and a lower mold is fixedly connected to the upper end of the mold base plate. A limiting frame is fixedly connected to the upper end of the mold base plate. The limiting frame is used to position and limit the raw material plate, ensuring accurate positioning of the raw material plate during stamping and preventing displacement.

[0010] Furthermore, the rotating assembly includes a motor, the lower end of which is fixedly connected to the upper end of a base plate. The output end of the motor is fixedly connected to a worm gear via a coupling. A worm wheel is meshed with the outer surface of the worm gear. A transmission rod is fixedly connected to the inner surface of the worm wheel. A connecting plate is fixedly connected to the upper end of the transmission rod.

[0011] Furthermore, the rotating assembly also includes a bearing, the inner surface of which is fixedly connected to the outer surface of the transmission rod, and the outer surface of which is fixedly connected to the inner wall of the base;

[0012] Furthermore, the lifting assembly includes a second connecting plate, a hydraulic rod is fixedly connected to the upper end of the second connecting plate, a positioning block is fixedly connected to the output end of the hydraulic rod, an electric push rod is fixedly connected to the inner wall of the positioning block, and a connecting block is fixedly connected to the output end of the electric push rod.

[0013] Furthermore, the gripping component includes a connecting plate three, with an air pump fixedly connected to the lower end of the connecting plate three, a distributor fixedly connected to the output end of the air pump, a fixed frame fixedly connected to the lower end of the distributor, and multiple suction cups fixedly connected to the inner surface of the fixed frame. The distributor can evenly distribute the negative pressure generated by the air pump to each suction cup.

[0014] Furthermore, the gripping assembly also includes multiple hoses, one end of each hose being fixedly connected to and communicating with a distributor, and the other end of each hose being fixedly connected to and communicating with multiple suction cups respectively.

[0015] Furthermore, the upper end of the connecting plate three is fixedly connected to the lower end of the connecting block by bolts, and the upper end of the connecting plate one is fixedly connected to the lower end of the connecting plate two by bolts.

[0016] Compared with the prior art, the advantages of this utility model are as follows:

[0017] (1) This solution sets up two symmetrically distributed loading and unloading mechanisms to realize the synchronous operation of loading raw material plates and unloading stamped parts. Compared with the traditional manual single-station loading and unloading, this mold can reduce the process connection time, greatly shorten the stamping cycle, effectively meet the needs of modern automobile mass production, and improve the practicality of stamping mold.

[0018] (2) This solution uses an automated loading and unloading mechanism to replace manual operation. Operators do not need to approach the danger zone when the stamping equipment is running, which avoids safety accidents such as pinching and crushing caused by human operation errors from the root, and reduces the enterprise's safety management risks and potential losses.

[0019] (3) This solution uses the limiting frame and guide rod set in the mold structure, combined with the precise positioning function of the loading and unloading mechanism, to perform secondary positioning of the raw material plate, ensuring that the plate position is accurate during each stamping, reducing the scrap rate caused by positioning deviation, and improving the product qualification rate. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the mold structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the loading and unloading mechanism of this utility model;

[0024] Figure 4 This is a schematic diagram of the rotating component of this utility model;

[0025] Figure 5 This is a schematic diagram of the lifting component of this utility model;

[0026] Figure 6 This is a schematic diagram of the gripping component of this utility model.

[0027] The labels in the diagram represent:

[0028] 1. Base plate 1; 2. Loading plate; 3. Raw material plate; 4. Unloading plate; 5. Upper section stamping plate of D-pillar; 6. Mold structure; 61. Mold base plate; 62. Guide rod; 63. Mold top plate; 64. Hydraulic cylinder; 65. Moving plate; 66. Upper mold; 67. Lower mold; 68. Limit frame; 7. Loading and unloading mechanism; 71. Base; 72. Rotating assembly; 721. Motor; 722. Worm gear; 723. Worm wheel; 724. Transmission rod; 725. Connecting plate 1; 726. Bearing; 74. Lifting assembly; 741. Connecting plate 2; 742. Hydraulic rod; 743. Positioning block; 744. Electric push rod; 745. Connecting block; 75. Gripping assembly; 751. Connecting plate 3; 752. Air pump; 753. Diverter; 754. Fixing frame; 755. Suction cup; 756. Hose. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0030] The present invention will be further described below with reference to the embodiments.

[0031] In some embodiments, please refer to the appendix to the instruction manual. Figure 1-6 A stamping die for the upper section of a D-pillar inner plate includes a base plate 1. A feeding plate 2 is fixedly connected to one side of the base plate 1, and a raw material plate 3 is placed on the upper end of the feeding plate 2. A feeding plate 4 is fixedly connected to the other side of the base plate 1, and a stamping plate 5 for the upper section of the D-pillar is placed on the upper end of the feeding plate 4. A die structure 6 is fixedly connected to the upper end of the base plate 1. Two loading and unloading mechanisms 7 are fixedly connected to the upper end of the base plate 1. The loading and unloading mechanism 7 includes a base 71, the lower end of which is fixedly connected to the upper end of the base plate 1. A rotating component 72 is fixedly connected to the inner wall of the base 71. A lifting component 74 is fixedly connected to the upper part of the rotating component 72 by bolts. A gripping component 75 is fixedly connected to the lower part of the lifting component 74 by bolts.

[0032] In this embodiment of the utility model, by setting up loading and unloading mechanisms 7 and loading and unloading plates on both sides of the mold structure 6, the loading plate 2 is used to stack the raw material plate 3 required for stamping the upper part of the inner plate of the D column, and the unloading plate 4 is used to stack the semi-finished product of the upper part of the inner plate of the D column after stamping. In actual operation, the two loading and unloading mechanisms 7 work alternately, one is responsible for loading and the other is responsible for unloading, without interfering with each other, which greatly improves production efficiency.

[0033] In some embodiments, such as Figure 1-2 As shown, in a preferred embodiment of this utility model, the mold structure 6 includes a mold base plate 61. The lower end of the mold base plate 61 is fixedly connected to the upper end of the base plate 1. A plurality of guide rods 62 are fixedly connected to the upper end of the mold base plate 61. The upper ends of the plurality of guide rods 62 are jointly fixedly connected to a mold top plate 63. A hydraulic cylinder 64 is fixedly connected to the upper end of the mold top plate 63. A movable plate 65 is fixedly connected to the output end of the hydraulic cylinder 64. The inner surface of the movable plate 65 is slidably connected to the outer surface of the plurality of guide rods 62. An upper mold 66 is fixedly connected to the lower end of the movable plate 65. A lower mold 67 is fixedly connected to the upper end of the mold base plate 61. A limit frame 68 is fixedly connected to the upper end of the mold base plate 61.

[0034] The hydraulic cylinder 64 is a Parker F12 series heavy-duty hydraulic cylinder, such as the F12-080-MS-SV. This series of hydraulic cylinders features high pressure rating and large thrust output, with a maximum working pressure of up to 25MPa. It can provide a powerful and stable driving force for the moving plate 65, ensuring that the upper die 66 descends with precise pressure and speed, closely cooperating with the lower die 67 to complete the stamping of the raw material plate 3, ensuring the stability and consistency of stamping quality.

[0035] In this embodiment of the utility model, a loading and unloading mechanism 7 is used to place the raw material plate 3 into the limiting frame 68 to limit the raw material plate 3. This ensures accurate stamping position and prevents displacement of the raw material plate 3 during stamping, effectively improving the yield of the upper half of the stamped D-pillar inner plate semi-finished product. By activating the hydraulic cylinder 64, the moving plate 65 is pushed down along the outer surface of multiple guide rods 62. When the moving plate 65 slides down, it will bring the upper die 66 closer to the lower die 67 until the two close, thus stamping the raw material plate 3 to form it.

[0036] In some embodiments, such as Figure 3-6 As shown, in a preferred embodiment of the present invention, the rotating assembly 72 includes a motor 721. The lower end of the motor 721 is fixedly connected to the upper end of the base plate 1. The output end of the motor 721 is fixedly connected to a worm gear 722 via a coupling. A worm wheel 723 is meshed with the outer surface of the worm gear 722. A transmission rod 724 is fixedly connected to the inner surface of the worm wheel 723. A connecting plate 725 is fixedly connected to the upper end of the transmission rod 724. The upper end of the connecting plate 725 is fixedly connected to the lower end of the connecting plate 741 via bolts.

[0037] The 721 motor is a Panasonic MINASA6 series servo motor, model MSMD042G1U, which features high responsiveness and high-precision positioning.

[0038] The rotating assembly 72 also includes a bearing 726, the inner surface of which is fixedly connected to the outer surface of the transmission rod 724, and the outer surface of which is fixedly connected to the inner wall of the base 71.

[0039] The lifting assembly 74 includes a second connecting plate 741, a hydraulic rod 742 is fixedly connected to the upper end of the second connecting plate 741, a positioning block 743 is fixedly connected to the output end of the hydraulic rod 742, an electric push rod 744 is fixedly connected to the inner wall of the positioning block 743, and a connecting block 745 is fixedly connected to the output end of the electric push rod 744.

[0040] The hydraulic rod 742 uses Rexroth's DFEE type hydraulic cylinder to adapt to different load requirements. It has a large thrust output and stable stroke control capability, which can smoothly drive the lifting component 74 to rise or fall, ensuring that the suction cup 755 can achieve precise height positioning when grabbing or placing the raw material plate 3 and the upper section of the D column stamping plate 5. The error can be controlled within ±0.5mm, ensuring the smoothness and accuracy of loading and unloading.

[0041] The electric linear actuator 744 is selected from MISUMI's EAP series electric linear actuators, such as EAP-12-100-S. This series of electric linear actuators has a high-precision linear displacement control function. Through the lead screw drive, it can achieve precise fine adjustment of the horizontal position of the gripping component 75, with an adjustment accuracy of ±0.1mm, to ensure that the raw material plate 3 can be accurately placed in the limit frame 68 and accurately grip the stamped upper section of the D column stamping plate 5.

[0042] The gripping component 75 includes a connecting plate 3 751. The upper end of the connecting plate 3 751 is fixedly connected to the lower end of the connecting block 745 by bolts. An air pump 752 is fixedly connected to the lower end of the connecting plate 3 751. A distributor 753 is fixedly connected to the output end of the air pump 752. A fixing frame 754 is fixedly connected to the lower end of the distributor 753. Multiple suction cups 755 are fixedly connected to the inner surface of the fixing frame 754.

[0043] The air pump 752 uses an oil-free silent vacuum pump from JUFENG, model JZ-200. This air pump can quickly generate stable negative pressure and operates with low noise, without interfering with the production environment. Through the distributor 753 and hose 756, it evenly distributes the negative pressure to multiple suction cups 755. Each suction cup 755 can generate an adsorption force of up to 80kPa, which is sufficient to firmly adsorb the high-strength steel raw material plate 3 and the upper section of the D-pillar stamping plate 5, ensuring that the plate will not fall off during the gripping process.

[0044] The gripping component 75 also includes multiple hoses 756, one end of each hose 756 is fixedly connected to and communicates with the diverter 753, and the other end of each hose 756 is fixedly connected to and communicates with multiple suction cups 755 respectively.

[0045] In this embodiment of the utility model, the raw material plate 3 is neatly stacked above the loading plate 2, and the motor 721 of the loading and unloading mechanism 7 on the loading side is turned on, driving the worm 722 and the worm wheel 723 to mesh and transmit power, so that the transmission rod 724 can rotate with the cooperation of the bearing 726, thereby driving the gripping component 75 to rotate to directly above the loading plate 2.

[0046] Subsequently, the control hydraulic rod 742 pushes the lifting assembly 74 down. When the suction cup 755 approaches the surface of the raw material plate 3, the air pump 752 starts and provides negative pressure to the suction cup 755 through the distributor 753 and the hose 756, firmly adsorbing the raw material plate 3.

[0047] After the gripping component 75 adsorbs the raw material plate 3, the lifting component 74 rises to lift the raw material plate 3, the rotating component 72 rotates the raw material plate 3 to a position facing the mold structure 6, the electric push rod 744 is activated, and the gripping component 75 sends the raw material plate 3 into the mold structure 6 under the action of the electric push rod 744. The lifting component 74 is controlled to descend again to place the raw material plate 3 into the limiting frame 68.

[0048] Next, the hydraulic cylinder 64 drives the moving plate 65 to move down along the guide rod 62, causing the upper mold 66 and the lower mold 67 to close, and stamping the raw material plate 3 to complete the processing of the upper part of the inner plate of the D column.

[0049] After the upper section of the inner plate of the D-pillar is stamped, the loading and unloading mechanism 7 on the other side simultaneously performs the unloading action. Through the same rotation, lifting and adsorption process, the formed upper section stamping plate 5 of the D-pillar is picked up from the lower die 67 and transferred to the unloading plate 4 for storage.

[0050] It should be noted that the electric push rod 744, hydraulic rod 742, motor 721, air pump 752, and hydraulic cylinder 64 in this utility model are powered by an electric power source and controlled by a controller.

[0051] It should be noted that the specific installation methods, circuit connection methods, oil circuit connection methods, and control methods of the electric push rod 744, hydraulic rod 742, motor 721, air pump 752, and hydraulic cylinder 64 in this utility model are all conventional designs, and will not be described in detail in this utility model.

[0052] Working principle:

[0053] Material preparation and loading: The raw material plate 3 is neatly stacked on the loading plate 2, and the formed upper section stamped plate 5 of the D-pillar is placed on the unloading plate 4. The motor 721 in the loading and unloading mechanism 7 near the loading plate 2 is started, and the worm gear 722 is driven to rotate through the coupling. The worm gear 722 meshes with the worm wheel 723 to drive the transmission rod 724 to rotate under the support of the bearing 726. This drives the gripping component 75 to rotate to the top of the loading plate 2. The hydraulic rod 742 is controlled to push the lifting component 74 to descend. When the suction cup 755 approaches the surface of the raw material plate 3, the air pump 752 is started, and negative pressure is provided to the suction cup 755 through the distributor 753 and the hose 756 to firmly adsorb the raw material plate 3.

[0054] After the gripping component 75 adsorbs the raw material plate 3, the lifting component 74 rises to lift the raw material plate 3, the rotating component 72 rotates the raw material plate 3 to a position facing the mold structure 6, the electric push rod 744 is activated, and the gripping component 75 sends the raw material plate 3 into the mold structure 6 under the action of the electric push rod 744. The lifting component 74 is controlled to descend again to place the raw material plate 3 into the limiting frame 68.

[0055] Stamping: After the raw material plate 3 falls into the limiting frame 68, the hydraulic cylinder 64 is activated, pushing the moving plate 65 to slide smoothly down along the guide rod 62. The guide rod 62 and the moving plate 65 slide in a high-precision manner to ensure that the upper die 66 and the lower die 67 are vertically aligned. When the moving plate 65 drives the upper die 66 to descend and close with the lower die 67, the raw material plate 3 is subjected to high pressure between the upper and lower dies and undergoes plastic deformation, thus completing the stamping of the upper half of the D-pillar inner plate semi-finished product.

[0056] Unloading: While loading and stamping with the mold, the loading and unloading mechanism 7 on the side near the unloading plate 4 is controlled to perform unloading operations simultaneously. The rotating component 72 rotates to the top of the mold structure 6, the lifting component 74 descends, and the suction cup 755 adsorbs the formed upper section stamping plate 5 of the D-pillar. Then it rises and rotates to the top of the unloading plate 4 to release the workpiece. The two loading and unloading mechanisms 7 alternate and cycle to achieve seamless connection of "loading-stamping-unloading". The semi-finished upper section of the formed inner plate of the D-pillar can then be processed for other subsequent operations.

[0057] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A stamping die for the upper section of a D-pillar inner panel, comprising a base plate (1), characterized in that: A loading plate (2) is fixedly connected to one side of the base plate (1). A raw material plate (3) is placed on the upper end of the loading plate (2). A unloading plate (4) is fixedly connected to the other side of the base plate (1). A stamping plate (5) for the upper section of the D column is placed on the upper end of the unloading plate (4). A mold structure (6) is fixedly connected to the upper end of the base plate (1). Two loading and unloading mechanisms (7) are fixedly connected to the upper end of the base plate (1). The loading and unloading mechanism (7) includes a base (71). The lower end of the base (71) is fixedly connected to the upper end of the base plate (1). A rotating component (72) is fixedly connected to the inner wall of the base (71). A lifting component (74) is fixedly connected to the upper part of the rotating component (72) by bolts. A gripping component (75) is fixedly connected to the lower part of the lifting component (74) by bolts.

2. The D-pillar inner panel upper segment stamping die of claim 1, wherein: The mold structure (6) includes a mold base plate (61), the lower end of which is fixedly connected to the upper end of a base plate (1), a plurality of guide rods (62) are fixedly connected to the upper end of the mold base plate (61), the upper ends of the plurality of guide rods (62) are fixedly connected to a mold top plate (63), a hydraulic cylinder (64) is fixedly connected to the upper end of the mold top plate (63), a moving plate (65) is fixedly connected to the output end of the hydraulic cylinder (64), the inner surface of the moving plate (65) is slidably connected to the outer surface of the plurality of guide rods (62), an upper mold (66) is fixedly connected to the lower end of the moving plate (65), a lower mold (67) is fixedly connected to the upper end of the mold base plate (61), and a limit frame (68) is fixedly connected to the upper end of the mold base plate (61).

3. The D-pillar inner panel upper segment stamping die of claim 1, wherein: The rotating assembly (72) includes a motor (721), the lower end of which is fixedly connected to the upper end of the base plate (1), the output end of which is fixedly connected to a worm (722) via a coupling, the outer surface of which is meshed with a worm wheel (723), the inner surface of which is fixedly connected to a transmission rod (724), and the upper end of which is fixedly connected to a connecting plate (725).

4. The D-pillar inner panel upper segment stamping die of claim 3, wherein: The rotating assembly (72) also includes a bearing (726), the inner surface of which is fixedly connected to the outer surface of the transmission rod (724), and the outer surface of which is fixedly connected to the inner wall of the base (71).

5. The D-pillar inner panel upper segment stamping die of claim 3, wherein: The lifting assembly (74) includes a second connecting plate (741), the upper end of which is fixedly connected to a hydraulic rod (742), the output end of which is fixedly connected to a positioning block (743), the inner wall of which is fixedly connected to an electric push rod (744), and the output end of which is fixedly connected to a connecting block (745).

6. The D-pillar inner panel upper segment stamping die of claim 5, wherein: The gripping component (75) includes a connecting plate three (751), an air pump (752) is fixedly connected to the lower end of the connecting plate three (751), a distributor (753) is fixedly connected to the output end of the air pump (752), a fixing frame (754) is fixedly connected to the lower end of the distributor (753), and a plurality of suction cups (755) are fixedly connected to the inner surface of the fixing frame (754).

7. The D-pillar inner panel upper segment stamping die of claim 6, wherein: The gripping component (75) also includes a plurality of hoses (756), one end of each hose (756) being fixedly connected to and communicating with a distributor (753), and the other end of each hose (756) being fixedly connected to and communicating with a plurality of suction cups (755).

8. The D-pillar inner panel upper segment stamping die of claim 6, wherein: The upper end of the connecting plate three (751) is fixedly connected to the lower end of the connecting block (745) by bolts, and the upper end of the connecting plate one (725) is fixedly connected to the lower end of the connecting plate two (741) by bolts.

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