Multi-station hardware stamping forming device

Abstract

The utility model relates to hardware stamping technical field especially relates to a multi -position hardware stamping forming device. The multi -position hardware stamping forming device includes punch press body, locating block, positioning assembly, push plate and drive assembly, and the inside installation of punch press body has upper die holder and lower die holder, and the inside symmetry of lower die holder installs the locating block for positioning hardware spare, and positioning assembly is installed between lower die holder and locating block. The utility model provides a multi -position hardware stamping forming device through the design of positioning assembly, realizes the dynamic correction to hardware spare blank, when the upper die holder drops in the punching and forming procedure, drives the locating block to rise automatically, utilizes the slope design of locating block top to extrude blank to the middle, makes it and the closely attached board of cutting -to -size closely, thereby rectifies the position deviation caused due to vibration, push deviation in real time.

Description

Technical Field

[0001] This utility model relates to the field of metal stamping technology, and in particular to a multi-station metal stamping forming device. Background Technology

[0002] In the manufacturing and processing of hardware products, stamping is widely used as an efficient and low-cost processing method in the shaping and cutting of various metal sheets. Existing stamping equipment typically involves multiple independent processes when processing hardware parts: first, the raw sheet metal is cut into blanks that meet dimensional requirements using cutting equipment; then, the blanks are transferred to a punching station for hole processing; and finally, they are transferred to a forming station to complete the final stamping and shaping.

[0003] During the punching stage, when the cut sheet metal is pushed to the punching station by the feeding mechanism, it is very easy for the sheet metal to undergo slight displacement during the conveying process due to the continuous vibration generated during the operation of the device and the uneven pushing force of the feeding mechanism. Traditional positioning structures mostly use fixed blocks, which cannot correct the sheet metal in real time during the pushing process. These problems directly cause the punching position accuracy to exceed the tolerance, which in turn leads to defects such as dimensional discrepancies and shape distortions in subsequent forming processes. Ultimately, this results in a significant drop in the product qualification rate, increasing the company's production costs and material waste.

[0004] Therefore, it is necessary to provide a new multi-station hardware stamping and forming device to solve the above-mentioned technical problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a multi-station hardware stamping and forming device.

[0006] The multi-station metal stamping forming device provided by this utility model includes: a stamping machine body, a positioning block, a positioning component, a push plate, and a drive component. An upper die base and a lower die base are installed inside the stamping machine body. Positioning blocks for positioning metal parts are symmetrically installed inside the lower die base. A positioning component is installed between the lower die base and the positioning block. The positioning component drives the positioning block to rise to position the metal part to be processed. A push plate for unloading is provided inside the lower die base. A drive component is installed between the upper die base and the push plate. The drive component drives the push plate to move and push out the processed push plate.

[0007] Preferably, the positioning component includes: a protruding rod, a rack one, and a rack two. The protruding rod is symmetrically and slidably connected inside the lower mold base. The bottom end of each protruding rod is fixedly connected to a rack one. Gears are symmetrically and rotatably connected inside the lower mold base. Each rack one meshes with one side of the corresponding gear, and the other side of the gear meshes with a rack two. The top end of each rack two is fixedly connected to a corresponding positioning block.

[0008] Preferably, each rack has a spring fixedly connected to its bottom end, and the other end of each spring is fixedly connected to the inner wall of the lower mold base.

[0009] Preferably, the drive assembly includes: an ejector rod, an extrusion block, and an extrusion rod. The ejector rod is fixedly connected to the side wall of the upper mold base, and the extrusion blocks corresponding to the ejector rod are symmetrically slidably connected to the side wall of the lower mold base. The side walls of the extrusion blocks are all fixedly connected to extrusion rods. The opposite ends of the extrusion rods are all spherical. The opposite side of the extrusion blocks is fixedly connected to a second spring, and the other end of the second spring is fixedly connected to the side wall of the lower mold base.

[0010] Preferably, a trapezoidal block is fixedly connected to the side wall of the push plate, and a tension spring is fixedly connected to the end of the trapezoidal block away from the push plate. A mounting plate is fixedly connected to the side wall of the lower mold base, and the other end of the tension spring is fixedly connected to the side wall of the mounting plate. In the initial state, the spherical end of the extrusion rod is in contact with the inclined surface of the trapezoidal block, and the tension spring is in a stretched state.

[0011] Preferably, both spring one and spring two are compression springs, and the elastic force of spring two is greater than the tension force of the tension spring.

[0012] Compared with related technologies, the multi-station hardware stamping forming device provided by this utility model has the following beneficial effects: The design of the positioning component enables dynamic correction of the hardware blank. During the punching and forming process, when the upper die base descends, the driving positioning block automatically rises. The inclined surface design at the top of the positioning block is used to squeeze the blank towards the center, making it fit tightly against the sheet to be cut. This corrects the positional deviation caused by vibration and pushing deviation in real time, ensuring that the blank is always accurately aligned with the die during punching and forming. This significantly reduces the occurrence of problems such as punching position deviation and forming size discrepancies, and significantly improves the product qualification rate. The design of the drive components and push plate enables automatic unloading after processing. When the upper mold base rises and resets, the push rod disengages from the extrusion block, and the spring pushes the extrusion rod to reset and extrudes the trapezoidal block, causing the push plate to push the formed hardware out of the lower mold base. The entire process requires no manual intervention. This design not only reduces the labor intensity of operators and the risk of mechanical injury that may occur during manual material handling, but also further improves the stability of production. The components of the device work together through mechanical transmission. The reset function of spring one in the positioning component ensures that the positioning block is automatically stored after the process is completed, avoiding interference with the billet conveying. The elastic force of spring two in the drive component and the tension spring (the elastic force of spring two is greater than the tension of the tension spring) ensures that the push plate automatically avoids obstacles during processing and accurately resets during unloading, and the action switching can be completed without an additional power source. This pure mechanical linkage structure reduces the dependence on the electrical control system, reduces the failure rate, and improves the stability and durability of the device in long-term high-frequency operation. Attached Figure Description

[0013] Figure 1 A schematic diagram of the multi-station hardware stamping and forming device provided by this utility model; Figure 2 for Figure 1 The diagram shows a cross-sectional view of the lower mold base. Figure 3 for Figure 2 The diagram shows the structure at point A. Figure 4 for Figure 1 The diagram shows the structural schematic of the side of the lower mold base; Figure 5 for Figure 4 The diagram shows the structure at point B.

[0014] The following are the labels in the diagram: 1. Press machine body; 2. Upper die holder; 3. Lower die holder; 4. Positioning block; 5. Push plate; 6. Protruding rod; 7. Rack 1; 8. Rack 2; 9. Gear; 10. Spring 1; 11. Push rod; 12. Extrusion block; 13. Extrusion rod; 14. Spring 2; 15. Trapezoidal block; 16. Tension spring. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0016] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0017] Please see Figures 1 to 5A multi-station metal stamping forming apparatus includes: a stamping machine body 1, positioning blocks 4, positioning components, push plates 5, and a drive assembly. An upper die base 2 and a lower die base 3 are installed inside the stamping machine body 1. Positioning blocks 4 for positioning metal parts are symmetrically installed inside the lower die base 3. A positioning component is installed between the lower die base 3 and the positioning blocks 4. The positioning component drives the positioning blocks 4 to rise to position the metal parts to be processed. A push plate 5 for unloading is provided inside the lower die base 3. A drive assembly is installed between the upper die base 2 and the push plate 5. The push plate 5 is moved by the component to push out the processed push plate 5. The positioning components include: a protruding rod 6, a rack 1 7 and a rack 2 8. The protruding rod 6 is symmetrically slidably connected inside the lower mold base 3. The bottom end of the protruding rod 6 is fixedly connected to the rack 1 7. The gear 9 is symmetrically rotatably connected inside the lower mold base 3. The rack 1 7 meshes with one side of the corresponding gear 9. The other side of the gear 9 meshes with the rack 2 8. The top end of the rack 2 8 is fixedly connected to the corresponding positioning block 4. The bottom end of the rack 1 7 is fixedly connected to the spring 10. The other end of the spring 10 is fixedly connected to the inner wall of the lower mold base 3.

[0018] It should be noted that after the main body 1 of the stamping machine is started, the upper die holder 2 begins to move downwards and first cooperates with the lower die holder 3 to cut the continuously fed sheet metal into block blanks of a preset size. After the cutting is completed, the upper die holder 2 moves upwards and the feeding device pushes the cut block blanks forward to the punching area, while a new sheet metal segment is fed into the cutting position. When the upper mold base 2 descends again, its bottom first contacts and presses the symmetrically arranged protrusions 6 inside the lower mold base 3, forcing the protrusions 6 to slide downwards in the vertical direction; the downward movement of the protrusions 6 drives the rack-7 fixed at the bottom to descend synchronously, compressing the spring-10 and driving the gear 9 meshing with it to rotate. The rotation of gear 9 drives the meshing rack 8 on the other side to move upward, thereby pushing the positioning block 4 to rise from the lower mold base 3. Since the top two sides of the positioning block 4 are designed with slopes, the block 12-shaped blank will be squeezed towards the middle during the rising process, so that it fits tightly with the plate segment to be cut, thereby correcting the positional offset caused by vibration or pushing deviation, and ensuring that the blank is accurately aligned with the punching mold. The upper die holder 2 continues to descend to complete the punching process of the block blank; after the punching is completed, the upper die holder 2 begins to move upward and reset. The spring 10 releases its elastic force to push the rack 7 and the protrusion 6 upward. Through the reverse transmission of the gear 9, the rack 8 and the positioning block 4 are driven to descend and reset, so as to avoid interfering with the subsequent conveying of the blank. After the feeding device pushes the punched blank to the forming area, the upper die holder 2 descends again, repeating the lifting action of the positioning block 4: through the transmission of the cam 6, rack 1 7, gear 9 and rack 2 8, the positioning block 4 rises and accurately positions the blank in the forming die, ensuring the dimensional accuracy of the stamping.

[0019] Please see Figure 4 and Figure 5 The driving assembly includes: a push rod 11, an extrusion block 12, and an extrusion rod 13. The push rod 11 is fixedly connected to the side wall of the upper mold base 2. The extrusion blocks 12 corresponding to the push rod 11 are symmetrically slidably connected to the side wall of the lower mold base 3. The extrusion rods 13 are fixedly connected to the side walls of the extrusion blocks 12. The opposing ends of the extrusion rods 13 are all spherical. The opposing side of the extrusion blocks 12 is fixedly connected to the second spring 14. The other end of the second spring 14 is fixedly connected to the side wall of the lower mold base 3. The side wall of the push plate 5 is fixedly connected to the trapezoidal block 15. The end of the trapezoidal block 15 away from the push plate 5 is fixedly connected to the tension spring 16. The side wall of the lower mold base 3 is fixedly connected to the mounting plate. The other end of the tension spring 16 is fixedly connected to the side wall of the mounting plate. In the initial state, the spherical end of the extrusion rod 13 is in contact with the inclined surface of the trapezoidal block 15, and the tension spring 16 is in a stretched state. The first spring 10 and the second spring 14 are both compression springs, and the elastic force of the second spring 14 is greater than the tension of the tension spring 16. It should be noted that during the descent of the upper mold base 2 in the molding process, the push rod 11 fixed on its side wall moves down synchronously and contacts the extrusion blocks 12 symmetrically arranged on the side wall of the lower mold base 3, forcing the extrusion blocks 12 on both sides to slide outward against the elastic force of the spring 14, driving the extrusion rod 13 to move outward synchronously and gradually detach from the contact with the trapezoidal block 15; at this time, the tension spring 16 releases its tension, pulling the trapezoidal block 15 and the push plate 5 to move away from the stamping groove of the lower mold base 3, leaving space for molding processing; After the upper die base 2 completes the stamping process, it begins to move upward. The ejector rod 11 moves upward and gradually separates from the extrusion block 12. The spring 14 releases its elastic force and pushes the extrusion block 12 and the extrusion rod 13 to return to their original positions inward. The spherical end of the extrusion rod 13 re-contacts the inclined surface of the trapezoidal block 15 and extrudes it. Since the elastic force of the second spring 14 is greater than the tension of the tension spring 16, the trapezoidal block 15 is forced to drive the push plate 5 to move into the stamping groove, while stretching the tension spring 16. During the movement, the push plate 5 pushes the formed hardware parts out of the lower mold base 3, completing the automatic unloading.

[0020] The working principle of the multi-station hardware stamping and forming device provided by this utility model is as follows: The sheet metal to be processed is continuously fed into the lower die base 3 inside the body 1 of the stamping machine by the feeding device; at this time, the device is in the initial state: the positioning block 4 is stored inside the lower die base 3, the spring 10 is in the naturally extended state; the push plate 5 is inside the stamping groove of the lower die base 3, the tension spring 16 is stretched, the spherical end of the extrusion rod 13 contacts the inclined surface of the trapezoidal block 15, and the spring 14 remains in the natural state to balance the tension of the tension spring 16; After the press body 1 is started, the upper die holder 2 begins to move downwards and first cooperates with the lower die holder 3 to cut the continuously fed sheet metal into block blanks of a preset size. After the cutting is completed, the upper die holder 2 moves upwards and the feeding device pushes the cut block blanks forward to the punching area, while a new sheet metal segment is fed into the cutting position. When the upper mold base 2 descends again, its bottom first contacts and presses the symmetrically arranged protrusions 6 inside the lower mold base 3, forcing the protrusions 6 to slide downwards in the vertical direction; the downward movement of the protrusions 6 drives the rack-7 fixed at the bottom to descend synchronously, compressing the spring-10 and driving the gear 9 meshing with it to rotate. The rotation of gear 9 drives the meshing rack 8 on the other side to move upward, thereby pushing the positioning block 4 to rise from the lower mold base 3. Since the top two sides of the positioning block 4 are designed with slopes, the block 12-shaped blank will be squeezed towards the middle during the rising process, so that it fits tightly with the plate segment to be cut, thereby correcting the positional offset caused by vibration or pushing deviation, and ensuring that the blank is accurately aligned with the punching mold. The upper die holder 2 continues to descend to complete the punching process of the block blank; after the punching is completed, the upper die holder 2 begins to move upward and reset. The spring 10 releases its elastic force to push the rack 7 and the protrusion 6 upward. Through the reverse transmission of the gear 9, the rack 8 and the positioning block 4 are driven to descend and reset, so as to avoid interfering with the subsequent conveying of the blank. After the feeding device pushes the punched blank to the forming area, the upper die holder 2 descends again, repeating the lifting action of the positioning block 4: through the transmission of the convex rod 6, rack 1 7, gear 9 and rack 2 8, the positioning block 4 rises and accurately positions the blank in the forming mold to ensure the dimensional accuracy of stamping. During the descent of the upper mold base 2 in the molding process, the push rod 11 fixed on its side wall moves down synchronously and contacts the extrusion blocks 12 symmetrically arranged on the side wall of the lower mold base 3, forcing the extrusion blocks 12 on both sides to slide outward against the elastic force of the spring 14, driving the extrusion rod 13 to move outward synchronously and gradually detach from the contact with the trapezoidal block 15; at this time, the tension spring 16 releases the tension, pulling the trapezoidal block 15 and the push plate 5 to move away from the stamping groove of the lower mold base 3, leaving space for molding processing; After the upper die base 2 completes the stamping process, it begins to move upward. The ejector rod 11 moves upward and gradually separates from the extrusion block 12. The spring 14 releases its elastic force and pushes the extrusion block 12 and the extrusion rod 13 to return to their original positions inward. The spherical end of the extrusion rod 13 re-contacts the inclined surface of the trapezoidal block 15 and extrudes it. Since the elastic force of the second spring 14 is greater than the tension of the tension spring 16, the trapezoidal block 15 is forced to drive the push plate 5 to move into the stamping groove, while stretching the tension spring 16. During the movement, the push plate 5 pushes the formed hardware parts out of the lower mold base 3, completing the automatic unloading.

[0021] All standard parts used above can be purchased from the market. Irregular parts can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology. In addition, the circuit connection adopts conventional connection methods in the existing technology, which will not be described in detail here.

[0022] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A multi-station hardware stamping and forming device, characterized in that, include: The press body (1) has an upper die holder (2) and a lower die holder (3) installed inside the press body (1). Positioning blocks (4): The lower mold base (3) is symmetrically equipped with positioning blocks (4) for positioning hardware parts. A positioning component is installed between the lower mold base (3) and the positioning block (4). The positioning component drives the positioning block (4) to rise to position the hardware part to be processed. Push plate (5), the lower mold base (3) is provided with push plate (5) for material feeding; A drive assembly is installed between the upper mold base (2) and the push plate (5). The drive assembly drives the push plate (5) to move and push out the processed push plate (5).

2. The multi-station hardware stamping and forming device according to claim 1, characterized in that, The positioning components include: a protruding rod (6), a rack one (7) and a rack two (8). The protruding rod (6) is symmetrically slidably connected inside the lower mold base (3). The bottom end of the protruding rod (6) is fixedly connected to the rack one (7). The gear (9) is symmetrically rotatably connected inside the lower mold base (3). The rack one (7) meshes with one side of the corresponding gear (9). The other side of the gear (9) meshes with the rack two (8). The top end of the rack two (8) is fixedly connected to the corresponding positioning block (4).

3. The multi-station hardware stamping and forming device according to claim 2, characterized in that, The bottom end of each rack (7) is fixedly connected to a spring (10), and the other end of each spring (10) is fixedly connected to the inner wall of the lower mold base (3).

4. The multi-station hardware stamping and forming device according to claim 1, characterized in that, The drive assembly includes: a push rod (11), an extrusion block (12) and an extrusion rod (13). The push rod (11) is fixedly connected to the side wall of the upper mold base (2). The extrusion block (12) corresponding to the push rod (11) is symmetrically slidably connected to the side wall of the lower mold base (3). The extrusion rod (13) is fixedly connected to the side wall of each extrusion block (12). The opposite ends of the extrusion rod (13) are all spherical. The opposite side of the extrusion block (12) is fixedly connected to a second spring (14). The other end of the second spring (14) is fixedly connected to the side wall of the lower mold base (3).

5. The multi-station hardware stamping and forming device according to claim 4, characterized in that, A trapezoidal block (15) is fixedly connected to the side wall of the push plate (5). A tension spring (16) is fixedly connected to the end of the trapezoidal block (15) away from the push plate (5). A mounting plate is fixedly connected to the side wall of the lower mold base (3). The other end of the tension spring (16) is fixedly connected to the side wall of the mounting plate. In the initial state, the spherical end of the extrusion rod (13) is in contact with the inclined surface of the trapezoidal block (15), and the tension spring (16) is in a stretched state.

6. The multi-station hardware stamping and forming device according to claim 5, characterized in that, Spring 1 (10) and Spring 2 (14) are both compression springs, and the elastic force of Spring 2 (14) is greater than the tension of the tension spring (16).

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