A device for one-time press forming of a U-shaped workpiece

Abstract

The utility model relates to stamping equipment technical field more specifically, it relates to a kind of U-shaped workpiece one-time stamping forming device, long strip-shaped workpiece is placed in bottom die, clamping is carried out by the top die and the bottom die, so that the ejector part is formed U shape by stamping workpiece into the placement groove, since the bottom die is provided with a plurality of convex points on the placement groove side, the bottom die is provided with extruding piece of extruding workpiece in the convex point opposite direction, by extruding piece extrusion, promote workpiece to the convex point stamping and form concave point, simultaneously form convex point on the concave point corresponding surface of workpiece, to complete the U-shaped bending and the concave convex point of one-time forming of U-shaped workpiece, to save cost, improve production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of stamping equipment technology, and more specifically, it relates to a U-shaped workpiece one-time stamping forming device. Background Technology

[0002] Currently, most stamping processes in China are processed in multiple steps. For example, U-shaped workpieces require processes such as point cutting, U-bending, shaping, embossing, and reshaping. In such a complex stamping process, it is necessary to use five or more stamping machines to complete all the above processes, which makes the stamping process too complicated and the production cost too high. Utility Model Content

[0003] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a U-shaped workpiece one-time stamping forming device, which has the following advantages.

[0004] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a U-shaped workpiece one-time stamping forming device, including a bottom mold and a top mold that can be closed with the bottom mold, the bottom mold is provided with a placement groove for accommodating the workpiece, the top mold is provided with a pusher, when the top mold and the bottom mold are closed, the pusher presses the workpiece into the placement groove to form a U shape.

[0005] The bottom mold has multiple protrusions on one side of the placement groove. The bottom mold has an extrusion member for extruding the workpiece in the direction directly opposite the protrusions. The workpiece is pressed towards the protrusions by the extrusion member, so that one side of the workpiece surface is concave and the other side is protruding.

[0006] Preferably, it includes a bottom mold and a top mold that can be closed with the bottom mold. The bottom mold has a placement groove for accommodating the workpiece, and the top mold is provided with a pusher. When the top mold and the bottom mold are closed, the pusher presses the workpiece into the placement groove to form a U-shape.

[0007] The bottom mold has multiple protrusions on one side of the placement groove. The bottom mold has an extrusion member for extruding the workpiece in the direction directly opposite the protrusions. The workpiece is pressed towards the protrusions by the extrusion member, so that one side of the workpiece surface is concave and the other side is protruding.

[0008] Preferably, the bottom mold is provided with a limiting groove on the side away from the workpiece feeding direction, and the top mold is provided with a cutter on the side close to the workpiece feeding direction. The workpiece end is restricted by the limiting groove, and the workpiece is cut by the cutter when the top mold and the bottom mold are closed.

[0009] Preferably, the bottom mold is provided with multiple pre-shrinking mechanisms in the placement groove, and the multiple pre-shrinking mechanisms will eject from the placement groove for demolding after the workpiece is formed.

[0010] Preferably, the pre-shrinking mechanism includes a through hole in the bottom mold, a slider that slides in the through hole, and a spring installed in the through hole. The pre-shrinking of the spring causes the slider to slide in the through hole under external force. When the external force is released, the spring restores its elasticity and pushes the workpiece out.

[0011] Preferably, the bottom mold includes a fixed end and a movable end hinged to one side of the fixed end. When the top mold and the bottom mold are closed, the movable end is pushed towards the fixed end by an external force to form a placement groove to wrap and stamp the workpiece.

[0012] Preferably, the plurality of pre-shrinking mechanisms are respectively located at the bottom of the placement groove.

[0013] In summary, the present invention has the following advantages: A long strip-shaped workpiece is placed in the bottom mold, and the top mold and bottom mold are closed, causing the pusher to press the workpiece into the placement groove to form a U-shape. Since the bottom mold has multiple protrusions on one side of the placement groove, and an extrusion member is provided in the direction directly opposite the protrusions to press the workpiece, the extrusion member presses the workpiece towards the protrusions to form concave points. Simultaneously, protrusions are formed on the corresponding surfaces of the concave points on the workpiece. This completes the U-shaped bending and one-time forming of the U-shaped workpiece, thereby saving costs and improving production efficiency. Attached Figure Description

[0014] Figure 1 This is a cross-sectional view of an embodiment of the present utility model;

[0015] Figure 2 This is a cross-sectional view of the bottom mold of an embodiment of this utility model;

[0016] Figure 3 This is a schematic diagram of the pre-shrinking mechanism according to an embodiment of the present invention.

[0017] Reference numerals in the attached drawings: 1. Bottom mold; 11. Top mold; 12. Placement groove; 13. Pushing component; 14. Protrusion; 15. Limiting groove; 16. Cutting knife; 2. Pre-shrinking mechanism; 21. Through hole; 22. Slider; 23. Spring; 3. Fixed end; 31. Moving end. Detailed Implementation

[0018] To make the technical problems, technical solutions, and beneficial effects 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.

[0019] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly or indirectly attached to that other component. When a component is referred to as being "connected to" another component, it can be directly or indirectly connected to that other component.

[0020] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0022] A U-shaped workpiece one-time stamping forming device, see Figures 1-3 It includes a bottom mold 1 and a top mold 11 that can be closed with the bottom mold 1. The bottom mold 1 has a placement groove 12 for accommodating the workpiece. The top mold 11 is provided with a pusher 13. When the top mold 11 and the bottom mold 1 are closed, the pusher 13 presses the workpiece into the placement groove 12 to form a U-shape.

[0023] The bottom mold 1 has a plurality of protrusions 14 on one side of the placement groove 12. The bottom mold 1 has an extrusion member for extruding the workpiece in the direction directly opposite to the protrusions 14. By extruding the workpiece, the workpiece is forced to be pressed toward the protrusions 14, so that one side of the workpiece surface is a concave point and the other side is a protrusion 14.

[0024] In this embodiment, a long strip-shaped workpiece is placed in the bottom mold 1. The top mold 11 and the bottom mold 1 are closed, so that the pusher 13 presses the workpiece into the placement groove 12 to form a U-shape. Since the bottom mold 1 is provided with multiple protrusions 14 on one side of the placement groove 12, and the bottom mold 1 is provided with an extrusion member for extruding the workpiece in the direction directly opposite to the protrusions 14, the workpiece is pressed into the protrusions 14 by the extrusion member to form concave points. At the same time, protrusions 14 are formed on the corresponding surface of the concave points of the workpiece. In this way, the U-shaped bending of the U-shaped workpiece and the forming of the concave and protruding points 14 are completed in one step, so as to save costs and improve production efficiency.

[0025] Specifically, the bottom mold 1 is provided with a limiting groove 15 on the side away from the workpiece feeding direction, and the top mold 11 is provided with a cutter 16 on the side close to the workpiece feeding direction. The limiting groove 15 restricts the end of the workpiece. When the top mold 11 and the bottom mold 1 are closed, the cutter 16 is used to cut the workpiece.

[0026] Since the lengths of the long strip workpieces vary, the limiting groove 15 and the cutter 16 are used to limit the length of the cutter 16 and complete the fixed-point cutting.

[0027] Specifically, the bottom mold 1 is provided with a plurality of pre-shrinking mechanisms 2 in the placement groove 12. After the workpiece is formed, the plurality of pre-shrinking mechanisms 2 will be ejected from the placement groove 12 for demolding.

[0028] When the bottom mold 1 and the top mold 11 are closed, the pre-shrinking mechanism 2 shrinks due to the extrusion of the workpiece. After the bottom mold 1 and the top mold 11 are separated, the pre-shrinking mechanism 2 ejects the formed workpiece, which facilitates demolding.

[0029] The pre-shrinking mechanisms 2 are respectively located at the bottom of the placement groove 12.

[0030] Specifically, the pre-shrinking mechanism 2 includes a through hole 21 provided in the bottom mold 1, a slider 22 sliding in the through hole 21, and a spring 23 installed in the through hole 21. The pre-shrinking of the spring 23 causes the slider 22 to slide in the through hole 21 under external force. When the external force is released, the spring 23 restores its elasticity and pushes the workpiece out.

[0031] The workpiece is demolded by using the recoverability of spring 23 for pushing and pre-shrinking.

[0032] Specifically, the bottom mold 1 includes a fixed end 3 and a movable end 31 hinged to one side of the fixed end 3. When the top mold 11 and the bottom mold 1 are closed, the movable end 31 is pushed towards the fixed end 3 by external force to form a placement groove 12 to wrap and press the workpiece.

[0033] In this embodiment, the bottom mold 1 is provided with a fixed end 3 and a movable end 31. The movable end 31 is hinged to the fixed end 3. With the help of external force, the movable end 31 is pushed closer to the fixed end 3 to form a placement groove 12 for wrapping and stamping the workpiece.

[0034] Specifically, the external force is a hydraulic cylinder or a pneumatic cylinder that pushes the cylinder.

[0035] The above embodiments are merely explanations of the present utility model and are not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to the embodiments without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of the present utility model.

Claims

1. A U-shaped workpiece one-time stamping forming device, characterized in that: The mold includes a bottom mold and a top mold that can be closed with the bottom mold. The bottom mold has a placement groove for accommodating the workpiece, and the top mold has a pusher. When the top mold and the bottom mold are closed, the pusher presses the workpiece into the placement groove to form a U-shape. The bottom mold has multiple protrusions on one side of the placement groove. The bottom mold has an extrusion member for extruding the workpiece in the direction directly opposite the protrusions. The workpiece is pressed towards the protrusions by the extrusion member, so that one side of the workpiece surface is concave and the other side is protruding.

2. The U-shaped workpiece one-time stamping forming device according to claim 1, characterized in that: The bottom mold is provided with a limiting groove on the side away from the workpiece feeding direction, and the top mold is provided with a cutter on the side close to the workpiece feeding direction. The workpiece end is restricted by the limiting groove. When the top mold and the bottom mold are closed, the workpiece is cut by the cutter.

3. The U-shaped workpiece one-time stamping forming device according to claim 1, characterized in that: The bottom mold is provided with multiple pre-shrinking mechanisms in the placement groove. After the workpiece is formed, the multiple pre-shrinking mechanisms will be ejected from the placement groove for demolding.

4. The U-shaped workpiece one-time stamping forming device according to claim 3, characterized in that: The pre-shrinking mechanism includes a through hole in the bottom mold, a slider that slides in the through hole, and a spring installed in the through hole. The pre-shrinking of the spring causes the slider to slide in the through hole under external force. When the external force is released, the spring restores its elasticity and pushes the workpiece out.

5. The U-shaped workpiece one-time stamping forming device according to claim 1, characterized in that: The bottom mold includes a fixed end and a movable end hinged to one side of the fixed end. When the top mold and the bottom mold are closed, the movable end is pushed towards the fixed end by external force to form a placement groove to wrap and stamp the workpiece.

6. The U-shaped workpiece one-time stamping forming device according to claim 4, characterized in that: Multiple pre-shrinking mechanisms are respectively located at the bottom of the placement groove.

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