Bottom plate stamping forming device

Abstract

The utility model provides a bottom plate stamping forming device. The bottom plate stamping forming device comprises a lower die plate, an ejector rod, a discharging plate, a positioning pin, a female die, a connecting plate, an upper die plate, a frame, a first base plate, a rebounding block, a second base plate, a cover plate, a beating rod, an unloading device and a male-female die. When the die device is used, a product can be formed in a high-quality mode by conducting multi-position positioning on a blank material, resilience force generated after the material ramming device above the die is extruded is used for transmitting the resilience force to the ramming rod, the ramming rod ramps the part unloading device, the product is popped out of a female die cavity, and unloading work is smoothly completed. Rapid forming is achieved, the product quality is guaranteed, and production is reliably guaranteed. According to the utility model, the problems that the bottom plate is difficult to form and unload and two sets of pressing dies need to be prepared due to material problems can be solved, the process rhythm of stamping operation is reliably ensured, and the requirement of batch production is met.

Description

Technical Field

[0001] The utility model belongs to the technical field of stamping forming of special vehicles, and particularly relates to a stamping forming device for a bottom plate. Background Art

[0002] At present, the bottom plates of special vehicles produced are special-shaped parts with complex structures. The overall structure is asymmetric and there are many shaped surfaces. Reinforcing ribs, two square holes and two round holes are arranged on the shaped surfaces. Since the structure of this product is relatively complex, a set of special stamping forming dies needs to be designed to ensure the qualified rate and product quality. Because such special vehicles use rubber-coated crawlers and have a large usage base, and the demand for various models is large every year, they need to be mass-produced. Content of the Utility Model

[0003] (1) Technical Problems to be Solved

[0004] The utility model provides a stamping forming device for a bottom plate to solve the technical problem of how to realize the processes of one-time forming and material discharging simultaneously, so as to ensure the qualified rate and product quality.

[0005] (2) Technical Solutions

[0006] To solve the above technical problems, the utility model provides a stamping forming device for a bottom plate, which includes a lower template, ejector rods, a stripper plate, positioning pins, a concave die, a connecting plate, an upper template, a frame, a first cushion plate, a spring-back block, a second cushion plate, a cover plate, punching rods, a part ejector and a convex-concave die. Among them,

[0007] The connecting plate is placed on the upper plane of the concave die, and the upper template is placed on the connecting plate. The upper template, the connecting plate and the concave die are fixedly connected to form a cavity. The part ejector is placed in the cavity, and the stripper screws pass through from above the upper template and are fixedly connected to the corresponding threaded holes on the part ejector, so that the part ejector can move up and down in the cavity.

[0008] The convex-concave die is fixedly connected to the lower template. The stripper plate is placed on the lower template, and the stripper screws pass through from below the lower template and are fixedly connected to the corresponding threaded holes on the stripper plate, so that the stripper plate can move up and down. The positioning pins are inserted into the pin holes in the stripper plate for positioning with the concave die. The ejector rods pass through from below the lower template and contact the lower surface of the stripper plate to lift the stripper plate, so that the upper plane of the stripper plate can be leveled with the upper plane of the convex-concave die to form a positioning plane for the blank. Two punching rods are respectively placed in two corresponding punching rod holes of the upper template. The frame is installed on the top plane of the upper template, and the bottom edge of the frame is fixed on the upper template. The first cushion plate, the spring-back block and the second cushion plate are sequentially placed in the frame, and a cover plate is installed on the top of the frame.

[0009] Furthermore, pins are used to position the upper template, the connecting plate and the concave die.

[0010] Further, the upper template, the connecting plate and the female die are firmly connected by screws to form a cavity in combination.

[0011] Further, dowel pins are used to position the male and female dies and the lower template.

[0012] Further, the male and female dies are firmly connected to the lower template by screws.

[0013] Further, the positioning pins are inserted into the pin holes in the stripper plate in an interference fit manner.

[0014] Further, the blank is positioned on the positioning plane by the positioning pins.

[0015] Further, the four sides of the bottom of the frame are fixed at the center position of the upper plane of the upper template by welding.

[0016] Further, the spring-back block is made of a rubber block.

[0017] Further, the top of the frame is firmly connected to the cover plate by bolts.

[0018] (III) Advantageous Effects

[0019] The present utility model provides a bottom plate stamping forming device, which includes a lower template, a ejector rod, a stripper plate, a positioning pin, a female die, a connecting plate, an upper template, a frame, a first backing plate, a spring-back block, a second backing plate, a cover plate, a punching rod, a part ejector and a male and female die. By using this die device, through positioning the blank at multiple positions, the product can be formed with high quality. Then, by utilizing the resilience after extrusion of the punching device above the die, it is transmitted to the punching rod, and the punching rod hits the part ejector, so that the product is ejected from the cavity of the female die, and the unloading work is successfully completed. It realizes rapid forming and ensures the product quality, providing a reliable guarantee for production. The present utility model can solve the problems of difficult forming of the bottom plate, difficult unloading and the need to prepare two sets of pressing dies due to material problems, reliably guarantee the process rhythm of the stamping operation, and meet the needs of mass production. Description of the Drawings

[0020] Figure 1 is the front view sectional view of the bottom plate stamping forming device of the present utility model (the left side is the state of placing the blank before pressing, and the right side is the state after pressing is completed);

[0021] Figure 2 is the top view of the bottom plate stamping forming device of the present utility model;

[0022] Figure 3 is the side view sectional view of the bottom plate stamping forming device of the present utility model. Detailed Embodiment

[0023] To make the objectives, content, and advantages of the present utility model clearer, the following further describes in detail the specific implementation manners of the present utility model in conjunction with the accompanying drawings and embodiments.

[0024] This embodiment provides a bottom plate stamping and forming device, whose overall structure is as Figures 1 to 3 shown, mainly including a lower template 1, ejector rods 2, a stripper plate 3, positioning pins 4, a concave die 5, a connecting plate 6, an upper template 7, a frame 8, a first cushion plate 9, a rubber block 10, a second cushion plate 11, a cover plate 12, knockout rods 13, a part ejector 14, and a convex-concave die 15.

[0025] The connecting plate 6 is placed on the upper plane of the concave die 5, and the upper template 7 is placed on the connecting plate 6. Pins are used to position the upper template 7, the connecting plate 6, and the concave die 5, and the upper template 7, the connecting plate 6, and the concave die 5 are firmly connected by screws to form a cavity. The part ejector 14 is placed in the cavity. The ejector screws pass through from above the upper template 7 and are firmly connected to the corresponding threaded holes on the part ejector 14, enabling the part ejector 14 to move up and down in the cavity.

[0026] Pins are used to position the convex-concave die 15 and the lower template 1, and they are firmly connected by screws. The stripper plate 3 is placed on the lower template 1. The ejector screws pass through from below the lower template 1 and are firmly connected to the corresponding threaded holes on the stripper plate 3, enabling the stripper plate 1 to move up and down. The positioning pins 4 are inserted into the pin holes in the stripper plate 3 by an interference fit method for positioning with the concave die 5. The ejector rods 2 pass through from below the lower template 1 and contact the lower surface of the stripper plate 3, used to lift the stripper plate 3 so that the upper plane of the stripper plate 3 can be leveled with the upper plane of the convex-concave die 15 to form a positioning plane, and the blank can be positioned on the positioning plane through the positioning pins. Two knockout rods 13 are respectively placed into two corresponding knockout rod holes of the upper template 7. The frame 8 is installed on the top plane of the upper template 7. The four sides of the bottom edge of the frame 8 are fixed at the center position of the upper plane of the upper template 7 by welding, making the knockout force uniform and not eccentric. The first cushion plate 9, the rubber block 10, and the second cushion plate 11 are sequentially placed into the frame 8, and are firmly connected to the cover plate 12 by bolts at the top of the frame 8.

[0027] During use, the upper template 7 and the lower template 1 are respectively fixed at the center positions of the upper and lower workbenches of the machine tool. The ejector rods of the machine tool itself lift the ejector rods 2, and the ejector rods 2 lift the stripper plate 3. The cut blank is placed on the positioning plane when the stripper plate 3 of the mold is leveled with the convex-concave die 15. After being positioned by the positioning pins, the pressing shape is completed under the mutual cooperation of the convex-concave die 15, the part ejector 14, and the concave die 5. Utilizing the resilience of the rubber block 10 placed in the frame 8 after being squeezed, it is transmitted to the knockout rods 13, and the knockout rods 13 hit the part ejector 14, causing the formed product to fall from the concave die 5, successfully completing the pressing shape and unloading work.

[0028] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present utility model, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present utility model.

Claims

1. A bottom plate stamping forming device, characterized in that: The bottom plate stamping forming device includes a lower template, a push rod, a stripper plate, a positioning pin, a die, a connecting plate, an upper template, a frame, a first pad, a rebound block, a second pad, a cover plate, a rod, a stripper and a male and female die; wherein, The connecting plate is placed on the upper plane of the die, the upper die plate is placed on the connecting plate, the upper die plate, the connecting plate and the die are fastened and connected to form a cavity; the unloader is placed in the cavity, the unloader screw is inserted from the top of the upper die plate and fastened and connected with the corresponding threaded hole on the unloader, so that the unloader can move up and down in the cavity; The male and female dies are fastened to the lower die plate; the unloading plate is placed on the lower die plate, and the unloading screws are inserted from the bottom of the lower die plate and fastened to the corresponding threaded holes on the unloading plate, so that the unloading plate can move up and down; the positioning pins are inserted into the pin holes in the unloading plate for positioning with the female die; the ejector rods are inserted from the bottom of the lower die plate and contact the lower surface of the unloading plate, so as to lift the unloading plate, so that the upper plane of the unloading plate can be flush with the upper plane of the male and female dies to form a positioning plane for the blank; the two hitting rods are respectively placed in the two corresponding hitting rod holes of the upper die plate, the frame is installed on the top plane of the upper die plate, and the bottom edge of the frame is fixed on the upper die plate; the first pad, the rebound block and the second pad are placed in the frame in sequence, and a cover plate is installed on the top of the frame.

2. The bottom plate stamping forming device according to claim 1, characterized in that: Use pins to position the upper mold plate, connecting plate and die.

3. The bottom plate stamping forming device according to claim 1, characterized in that: The upper mold plate, the connecting plate and the concave mold are fastened together by screws to form a cavity.

4. The bottom plate stamping forming device according to claim 1, characterized in that: Use pins to position the male and female molds with the lower mold plate.

5. The bottom plate stamping forming device according to claim 1, characterized in that: The male and female molds are fastened to the lower mold plate by screws.

6. The bottom plate stamping forming device according to claim 1, characterized in that: The locating pins are inserted into the pin holes in the stripper plate by overfitting.

7. The bottom plate stamping forming device according to claim 1, characterized in that: The blank is positioned on the positioning plane by means of positioning pins.

8. The bottom plate stamping forming device according to claim 1, characterized in that: The bottom edge of the frame is fixed to the center position of the upper plane of the upper template by welding.

9. The bottom plate stamping forming device according to claim 1, characterized in that: The rebound block is made of rubber block.

10. The bottom plate stamping forming device according to claim 1, characterized in that: The top of the frame is fastened to the cover plate by bolts.

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