A punch bending mechanism

Abstract

The utility model discloses a punch bending mechanism, including male die and the punch upper die of being located male die top, the punch die cavity of punch upper die's opposite two cavity walls is provided with two stripping structure symmetry, the stripping structure includes: the installation cavity, which is opened on the cavity wall, the stripping piece is installed in the installation cavity through the shaft, the stripping piece can swing with the shaft as fulcrum, thereby can switch between the punch position and stripping position, when the stripping piece is in the punch position, it is accommodated in the installation cavity, when the stripping piece is in the stripping position, its upper end at least partial protrudes the installation cavity, spring is connected between the lower end of stripping piece and the bottom of installation cavity, is used for driving stripping piece to reply from stripping position to punch position, when the utility model is to the upward lift punch upper die, pushes up the U-shaped workpiece through the stripping piece, and the stripping is automatically completed, and production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of stamping equipment technology, specifically to a stamping and bending mechanism. Background Technology

[0002] like Figure 1 As shown, when using an inverted die to stamp and bend U-shaped workpieces, the U-shaped workpieces tend to get stuck on the punch, making them difficult to demold and affecting production efficiency. Therefore, this application provides a stamping and bending mechanism that facilitates the demolding of U-shaped workpieces. Utility Model Content

[0003] The purpose of this invention is to solve the above problems and provide a stamping and bending mechanism that can facilitate the demolding of U-shaped workpieces.

[0004] The purpose of this utility model is achieved through the following technical solution: a stamping and bending mechanism, including a punch and a stamping upper die located above the punch, wherein two demolding structures are symmetrically arranged on the two opposite cavity walls of the stamping die cavity of the stamping upper die;

[0005] The demolding structure includes:

[0006] The mounting cavity is formed in the cavity wall;

[0007] A demolding component is mounted in the mounting cavity via a shaft; the demolding component can swing about the shaft as a fulcrum, thereby switching between a stamping position and a demolding position; when the demolding component is in the stamping position, it is housed in the mounting cavity; when the demolding component is in the demolding position, its upper end at least partially extends out of the mounting cavity.

[0008] A spring, connected between the lower end of the demolding member and the bottom of the mounting cavity, is used to drive the demolding member to return from the demolding position to the stamping position.

[0009] A limiting member is provided inside the mounting cavity. The limiting member can abut against the lower end of the demolding member to limit the flipping angle of the demolding member.

[0010] When the demolding component is in the demolding position, its upper surface is horizontal.

[0011] After the upper stamping die and the punch cooperate to complete the stamping action, the demolding part is located below the U-shaped workpiece.

[0012] The upper and lower sides of the mounting cavity are vertical cavity walls, and the upper cavity wall of the stamping die cavity is inclined to the side away from the center, forming an inclined cavity wall, thereby gradually increasing the upper width of the stamping die cavity.

[0013] Compared with the prior art, this application has the following beneficial effects:

[0014] (1) When the upper die of the stamping is lifted upward, the U-shaped workpiece is pushed upward by the demolding component to automatically complete the demolding and improve production efficiency.

[0015] (2) The upper width of the stamping die cavity of this utility model gradually increases, which can prevent the U-shaped workpiece from being clamped in the stamping die cavity.

[0016] Some of the additional features of this application will be described in the following description. These additional features will become apparent to those skilled in the art upon examination of the following description and the accompanying drawings, or upon understanding the production or operation of the embodiments. The features disclosed in this application can be implemented and achieved through the practice or use of various methods, means, and combinations thereof with respect to the specific embodiments described below. Attached Figure Description

[0017] The accompanying drawings, which are provided to further illustrate this application and constitute a part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute a limitation thereof. In the drawings, the same reference numerals denote the same components.

[0018] Figure 1 This is a schematic diagram of an existing U-shaped workpiece being clamped onto a punch.

[0019] Figure 2 This is a cross-sectional view of the present invention.

[0020] Figure 3 This is a schematic diagram of the stamping process of this utility model.

[0021] Figure 4 This is a schematic diagram of the stamping process of this utility model.

[0022] Figure 5 This is a schematic diagram of the demolding process of this utility model.

[0023] The reference numerals in the above figures are: 1-stamping upper die, 2-stamping die cavity, 3-mounting cavity, 4-demolding part, 5-limiting part, 6-spring, 7-shaft, 8-U-shaped workpiece, 9-punch, 10-vertical cavity wall, 11-inclined cavity wall. Detailed Implementation

[0024] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0025] It should be noted that if the terms "first," "second," etc., are used in the specification, claims, and accompanying drawings of this application, they are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0026] In this application, when terms such as "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" are used, they indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are mainly for better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0027] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0028] Furthermore, in this application, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0029] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0030] Example

[0031] like Figure 2As shown, this embodiment discloses a stamping and bending mechanism, which includes a punch 9 and a stamping upper die 1 that cooperate with each other. The stamping upper die 1 is located above the punch 9; that is, the punch 9 is set on the worktable of the stamping machine, while the stamping upper die 1 is set on the stamping head of the stamping machine. Specifically, the stamping upper die 1 has a stamping cavity 2 that cooperates with the punch 9. During stamping, the material to be stamped is placed on the punch 9, and the stamping machine drives the stamping upper die 1 to move downward, so that the punch 9 cooperates with the stamping cavity 2 to stamp the material to be stamped into a U-shaped workpiece 8. It should be noted that the stamping machine is provided with a positioning structure for positioning the material to be stamped. For example, a positioning cavity is provided on the worktable of the stamping machine, and the punch 9 is set at the center of the positioning cavity. The material to be stamped is positioned by the cavity wall of the positioning cavity, so that the material to be stamped is just in the stamping position after being placed on the punch 9. This is a conventional setting of existing stamping machines and will not be described in detail here.

[0032] like Figure 2 As shown, two demolding structures are symmetrically arranged on the two opposite cavity walls of the stamping die 2 of the upper stamping die 1. When demolding, the two demolding structures can push the formed U-shaped workpiece 8 upward, so that the U-shaped workpiece 8 can be demolded smoothly.

[0033] Specifically, the demolding structure includes: a mounting cavity 3, a demolding component 4, and a spring 6. The mounting cavity 3 is formed on the cavity wall of the stamping die cavity 2. The demolding component 4 is installed in the mounting cavity 3 via a shaft 7, that is, the shaft 7 passes through the demolding component 4 and its two ends are installed on the opposite side walls of the mounting cavity 3. The spring 6 connects the lower end of the demolding component 4 and the bottom of the mounting cavity 3.

[0034] Furthermore, the ejector component 4 can swing about the shaft 7 as a fulcrum, allowing it to switch between the stamping position and the ejection position. When the ejector component 4 is in the stamping position, it is housed in the mounting cavity 3; when the ejector component 4 is in the ejection position, its upper end at least partially extends out of the mounting cavity 3, such as... Figure 2 , 3 As shown.

[0035] After the upper stamping die 1 and the punch 9 cooperate to complete the stamping action, the demolding part 4 is located below the U-shaped workpiece 8, such as... Figure 4 As shown.

[0036] In the initial state, under the tension of spring 6, the demolding part 4 is in the demolding position. The lower end of the demolding part 4 is inclined towards the inside of the mounting cavity 3 and is housed within the mounting cavity, while its upper end is inclined towards the outside of the mounting cavity 3 and partially extends out of the mounting cavity 3 into the stamping die cavity 2. Figure 2 As shown.

[0037] During stamping, the upper stamping die 1 moves downward, and the two side walls of the stamping die cavity 2 press against the two ends of the material to be stamped, causing the two ends of the material to be stamped to bend downward. As the upper stamping die 1 continues to move downward, the material to be stamped comes into contact with the demolding part 4, and the upper end of the demolding part 4 is pressed into the mounting cavity 3. The demolding part 4 rotates, and both its upper and lower ends are housed in the mounting cavity 3. The demolding part 4 switches to the stamping position, as shown below. Figure 3 As shown. After the top of the stamping die cavity 2 presses against the material to be stamped, the stamping action is completed, and the material to be stamped is stamped into a U-shaped workpiece 8. At this time, the demolding component 4 moves to the bottom of the U-shaped workpiece 8. Under the pulling force of the spring 6, the demolding component 4 returns to the demolding position, as shown. Figure 4 As shown. After stamping, the U-shaped workpiece 8 is clamped on the punch 9. When the stamping press moves the upper die 1 upward, the demolding parts 4 on the two demolding structures abut against the lower end of the U-shaped workpiece 8. As the upper die 1 continues to move upward, the demolding parts 4 push the U-shaped workpiece 8 away from the punch 9, completing the demolding process. Figure 5 As shown.

[0038] In addition, when the demolding component 4 is in the demolding position, its upper surface is horizontal, such as... Figure 2 As shown, this allows the upper surface of the demolding part 4 to better contact the lower ends of the two side plates of the U-shaped workpiece 8.

[0039] As another implementation method, such as Figure 2 As shown, a limiting member 5 is provided in the mounting cavity 3. The limiting member 5 can abut against the lower end of the demolding member 4 to limit the flipping angle of the demolding member 4. During demolding, the upper end of the demolding member 4 will be subjected to the squeezing force of the U-shaped workpiece 8. However, with the abutment of the limiting member 5, the upper end of the demolding member 4 will not flip into the stamping mold cavity 2, and its upper surface can still maintain a horizontal state.

[0040] In another embodiment, the upper and lower sides of the mounting cavity 3 are vertical cavity walls 10, and the upper cavity wall of the stamping die cavity 2 is slightly inclined away from the center, such as by 3-5 degrees, forming an inclined cavity wall 11, thereby gradually increasing the upper width of the stamping die cavity 2. This gradual increase in the upper width of the stamping die cavity 2 prevents the U-shaped workpiece 8 from being clamped inside the stamping die cavity 2 after demolding, allowing the U-shaped workpiece 8 to be directly removed from the stamping die cavity 2 after demolding. The lower half of the stamping die cavity 2 has vertical cavity walls, thus effectively forming the material to be stamped into a U-shaped workpiece.

[0041] In this embodiment, when the upper stamping die 1 is lifted upward, the U-shaped workpiece is pushed upward by the demolding component 4, and demolding is automatically completed, thereby improving production efficiency.

[0042] It should be noted that all features disclosed in this specification, or all steps in all methods or processes disclosed, may be combined in any way, except for mutually exclusive features and / or steps.

[0043] Furthermore, the specific embodiments described above are exemplary. Those skilled in the art can devise various solutions inspired by the disclosure of this utility model, and these solutions all fall within the scope of this utility model and its protection. Those skilled in the art should understand that this utility model specification and its drawings are illustrative and not intended to limit the scope of the claims. The scope of protection of this utility model is defined by the claims and their equivalents.

Claims

1. A stamping and bending mechanism, comprising a punch (9) and a stamping upper die (1) located above the punch (9), characterized in that, The upper stamping die (1) has two symmetrically arranged demolding structures on the two opposite cavity walls of the stamping die cavity (2); The demolding structure includes: The mounting cavity (3) is located on the cavity wall; A demolding component (4) is installed in the mounting cavity (3) via a shaft (7); the demolding component (4) can swing about the shaft (7) as a fulcrum, thereby switching between the stamping position and the demolding position; when the demolding component (4) is in the stamping position, it is housed in the mounting cavity (3); when the demolding component (4) is in the demolding position, its upper end extends at least partially out of the mounting cavity (3); A spring (6) is connected between the lower end of the demolding member (4) and the bottom of the mounting cavity (3) to drive the demolding member (4) back from the demolding position to the stamping position.

2. The stamping and bending mechanism according to claim 1, characterized in that, The mounting cavity (3) is provided with a limiting member (5), which can abut against the lower end of the demolding member (4) to limit the flipping angle of the demolding member (4).

3. The stamping and bending mechanism according to claim 1, characterized in that, When the demolding part (4) is in the demolding position, its upper surface is horizontal.

4. The stamping and bending mechanism according to claim 1, characterized in that, After the upper stamping die (1) and the punch (9) cooperate to complete the stamping action, the demolding part (4) is located below the U-shaped workpiece (8).

5. The stamping and bending mechanism according to claim 1, characterized in that, The upper and lower sides of the mounting cavity (3) are vertical cavity walls (10), and the upper cavity wall of the stamping die cavity (2) is inclined to the side away from the center, forming an inclined cavity wall (11), thereby gradually increasing the upper width of the stamping die cavity (2).

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