A device for bending a ring-shaped workpiece

Abstract

The utility model discloses a kind of annular workpiece bending forming devices, comprising: upper die holder, upper bending mechanism is arranged on it;Lower die holder, lower die cavity is arranged on it;The opposite two side walls of the lower die cavity are symmetrically provided with first bending groove and second bending groove, and the lower die cavity bottom is provided with lower bending mechanism;Mounting block, it is movably mounted on lower die holder;Forming column, fixedly set on the mounting block, and extend into lower die cavity;Demoulding ring, it is set on the forming column, for the annular workpiece on forming column is pushed to fall;Pushing mechanism is connected with the demoulding ring, for pushing the demoulding ring moves along forming column.The utility model can take down the annular workpiece after forming by pushing demoulding ring, and improve processing efficiency.

Description

Technical Field

[0001] This utility model relates to the field of stamping equipment technology, specifically to a device for bending and forming annular workpieces. Background Technology

[0002] like Figure 1 The ring-shaped workpiece shown is widely used in the construction industry and is formed by bending a sheet substrate. However, during processing, the formed ring-shaped workpiece wraps around the forming column and is not easy to remove. Utility Model Content

[0003] The purpose of this invention is to solve the above problems and provide a ring-shaped workpiece bending and forming device that can automatically unload the formed ring-shaped workpiece.

[0004] The objective of this utility model is achieved through the following technical solution: a ring-shaped workpiece bending and forming device, comprising: The upper mold base is equipped with an upper bending mechanism; The lower mold base has a lower mold cavity; the opposite side walls of the lower mold cavity are symmetrically provided with a first bending groove and a second bending groove, and the bottom of the lower mold cavity is provided with a lower bending mechanism. The mounting block is mounted on the lower mold base and can move up and down. The forming column is fixedly mounted on the mounting block and extends into the lower mold cavity; A demolding ring, fitted onto the forming column, is used to push the annular workpiece off the forming column; A pushing mechanism, connected to the demolding ring, is used to push the demolding ring to move along the forming column.

[0005] The pushing mechanism includes two vertical connecting rods respectively connected to the demolding ring, a horizontal connecting rod connecting the two vertical connecting rods, and a pusher mounted on the mounting block with its telescopic end connected to the horizontal connecting rod.

[0006] The upper bending mechanism includes an upper bending block disposed at the bottom of the upper mold base, and an upper arc concave surface formed on the lower surface of the upper bending block; The lower bending mechanism includes a lower bending block disposed at the bottom of the lower die cavity, and a lower arc concave surface formed on the upper surface of the lower bending block.

[0007] A limiting baffle is provided at the end of the first bending groove, and the limiting baffle protrudes from the surface of the lower die base.

[0008] The end of the second bending groove is provided with a lower cutter, which protrudes from the surface of the lower die base; the upper die base is provided with an upper cutter that cooperates with the lower cutter.

[0009] Limiting posts are provided on both sides of the second bending groove.

[0010] The lower mold base is provided with an installation groove, and the installation block is slidably installed in the installation groove; the bottom of the installation groove is provided with a spring for pushing the installation block upward and resetting it.

[0011] The highest point of the forming column is level with the surface of the lower mold base.

[0012] Compared with the prior art, this application has the following beneficial effects: the present invention can remove the ring-shaped workpiece covered on the forming column after molding by pushing the demolding ring, thereby improving the processing efficiency.

[0013] 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

[0014] 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. Figure 1 This is a structural diagram of a ring-shaped workpiece.

[0015] Figure 2 This is the front view of the present utility model.

[0016] Figure 3 This is a structural diagram of the lower mold base of this utility model.

[0017] Figure 4 This is a schematic diagram of the structure of the molded column of this utility model installed on the mounting block.

[0018] Figure 5 This is a schematic diagram of the mounting block of this utility model installed on the lower mold base.

[0019] The reference numerals in the above figures are as follows: 1-Upper mold base, 2-Upper bending block, 3-Upper arc concave surface, 4-Upper cutter, 5-Lower mold base, 6-Limiting baffle, 7-Lower mold cavity, 8-Forming column, 9-Demolding ring, 10-Lower bending block, 11-Lower arc concave surface, 12-Vertical connecting rod, 13-Horizontal connecting rod, 14-Lower cutter, 15-Limiting column, 16-Mounting block, 17-First bending groove, 18-Pusher, 19-Spring, 20-Annular workpiece, 21-Second bending groove. Detailed Implementation

[0020] 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.

[0021] 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.

[0022] 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.

[0023] 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.

[0024] 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.

[0025] 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.

[0026] Example like Figure 2 As shown in the figure, this embodiment discloses a ring-shaped workpiece bending and forming device, which includes: an upper mold base 1, a lower mold base 5, a mounting block 16, a forming column 8, a demolding ring 9, and a pushing mechanism.

[0027] The upper die holder 1 is mounted on the telescopic head of the bending equipment, which allows the upper die holder 1 to move up and down. The upper die holder 1 is equipped with an upper bending mechanism. When the upper die holder 1 moves downward, the upper bending mechanism presses down on the substrate to be formed. Specifically, the upper bending mechanism includes an upper bending block 2 located at the bottom of the upper die holder 1 and an upper arc-shaped concave surface 3 formed on the lower surface of the upper bending block 2, such as... Figure 2 As shown.

[0028] The lower die holder 5 is mounted on the workpiece table of the bending equipment, and a lower die cavity 7 is provided on it. The lower die cavity 7 has symmetrically formed first bending grooves 17 and second bending grooves 21 on its opposite side walls, and a lower bending mechanism is provided at the bottom of the lower die cavity 7. Specifically, the lower bending mechanism includes a lower bending block 10 disposed at the bottom of the lower die cavity 7, and a lower arc concave surface 11 formed on the upper surface of the lower bending block 10. The shape of the lower arc concave surface 11 matches the shape of the upper arc concave surface 3, and they are arranged correspondingly, such as... Figure 3 As shown.

[0029] The mounting block 16 is movably mounted on the lower mold base 5. Specifically, the lower mold base 5 is provided with a mounting groove, and the mounting block 16 is slidably mounted within the mounting groove. A spring 19 is provided at the bottom of the mounting groove to push the mounting block 16 upwards and reset it. Figure 5 As shown. The forming column 8 is fixedly mounted on the mounting block 16 and extends into the lower mold cavity 7. The first bending groove 17 and the second bending groove 21 are symmetrically arranged with respect to the forming column 8; when the spring 19 is in the extended state, that is, when the mounting block 16 is not subjected to downward pressure, the highest point of the forming column 8 is flush with the surface of the lower mold base 5.

[0030] In addition, a limiting baffle 6 is provided at the end of the first bending groove 17, and the limiting baffle 6 protrudes from the surface of the lower die base 5. A lower cutter 14 is provided at the end of the second bending groove 21, and the lower cutter 14 protrudes from the surface of the lower die base 5; correspondingly, an upper cutter 4 that cooperates with the lower cutter 14 is provided on the upper die base 1, and the upper cutter 4 is flush with the lower surface of the upper bending block 2.

[0031] With the above structure, during use, the sheet-like substrate is extended from one side of the second bending groove 21 to the first bending groove 17 until the end of the substrate abuts against the limiting baffle 6, and the forming column 8 supports the substrate. The upper mold base 1 is controlled to move downward, and the upper cutter 4 and the lower cutter 14 cooperate to cut the substrate; at the same time, the two sides of the upper arc concave surface 3 press against the cut substrate. As the upper die holder 1 continues to move downwards, the upper bending block 2 engages with the forming column 8. Under the extrusion and forming action of the upper bending block 2, the substrate is bent into an inverted "U" shape. It should be noted that the elastic force of the spring 19 is greater than the bending force required to bend the substrate. Therefore, during the process of the upper bending block 2 pressing down on the substrate to bend it into an inverted "U" shape, due to the deformation of the substrate and the upward pushing force of the spring 19, the mounting block 16 does not move downwards until the substrate is completely bent into an inverted "U" shape and the upper bending block 2 is engaged with the forming column 8. If the upper die holder 1 continues to move downwards, the pressure on the mounting block 16 will then exceed the pushing force of the spring 19, causing the mounting block 16 to move downwards. Therefore, after the substrate is bent into an inverted "U" shape, as the upper die holder 1 moves further downwards, the mounting block 16 is also pushed downwards by pressure, and the spring 19 is compressed. As the mounting block 16 moves downward, the two sides of the inverted "U"-shaped substrate opening abut against the arc surfaces on both sides of the lower arc concave surface 11. Under the vertical pressure of the upper arc concave surface 3 and the lower arc concave surface 11, the substrate is bent into a ring shape and wrapped around the forming column 8, as shown. Figure 4 As shown. After the upper mold base 1 returns to its original position, the mounting block 16 also returns to its original position under the pushing force of the spring 19.

[0032] In practical implementation, limiting posts 15 can be set on both sides of the second bending groove 21. The positioning function of the limiting posts 15 can quickly place the sheet substrate at the corresponding position of the first bending groove 17 and the second bending groove 21.

[0033] A release ring 9 is fitted onto the forming column 8 and positioned near the mounting block 16, and is used to push the annular workpiece 20 off the forming column 8. A pushing mechanism is connected to the release ring 9 and is used to push the release ring 9 along the forming column 8.

[0034] Specifically, such as Figure 2 , 4 As shown, the pushing mechanism includes two vertical connecting rods 12 respectively connected to the demolding ring 9, a horizontal connecting rod 13 connecting the two vertical connecting rods 12, and a pusher 18 mounted on the mounting block 16 with its telescopic end connected to the horizontal connecting rod 13. The pusher 18 can be implemented using a cylinder. During installation, the cylinder can be bolted to the mounting block 16, and the wire on the cylinder can extend from the through hole on the mounting block 16 to the back of the mounting block 16. When the mounting block 16 moves up and down, the entire pushing mechanism moves accordingly. During installation, the wire on the cylinder can be set to be longer to avoid affecting the up and down movement of the pushing mechanism.

[0035] After the annular workpiece 20 is bent and formed, the pusher 18 pushes the demolding ring 9 forward, and the demolding ring 9 pushes the annular workpiece 20 forward, so that the annular workpiece 20 is removed from the forming column 8.

[0036] In this embodiment, the ring-shaped workpiece wrapped around the forming column after molding can be removed by pushing the demolding ring 9, which improves processing efficiency.

[0037] 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.

[0038] 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 device for bending and forming annular workpieces, characterized in that, include: Upper mold base (1), on which an upper bending mechanism is provided; The lower mold base (5) is provided with a lower mold cavity (7); the lower mold cavity (7) has a first bending groove (17) and a second bending groove (21) symmetrically opened on the opposite side walls; and the lower mold cavity (7) is provided with a lower bending mechanism at the bottom. Mounting block (16), which is movable up and down and mounted on the lower mold base (5); The forming column (8) is fixedly set on the mounting block (16) and extends into the lower mold cavity (7); A demolding ring (9) is fitted onto the forming column (8) to push the annular workpiece (20) off the forming column (8); A pushing mechanism, connected to the demolding ring (9), is used to push the demolding ring (9) to move along the molding column (8).

2. The annular workpiece bending and forming device according to claim 1, characterized in that, The pushing mechanism includes two vertical connecting rods (12) respectively connected to the demolding ring (9), a horizontal connecting rod (13) connecting the two vertical connecting rods (12), and a pusher (18) mounted on the mounting block (16) and whose telescopic end is connected to the horizontal connecting rod (13).

3. The annular workpiece bending and forming device according to claim 1, characterized in that, The upper bending mechanism includes an upper bending block (2) disposed at the bottom of the upper mold base (1) and an upper arc concave surface (3) formed on the lower surface of the upper bending block (2). The lower bending mechanism includes a lower bending block (10) disposed at the bottom of the lower die cavity (7) and a lower arc concave surface (11) formed on the upper surface of the lower bending block (10).

4. The annular workpiece bending and forming device according to claim 1, characterized in that, A limiting baffle (6) is provided at the end of the first bending groove (17), and the limiting baffle (6) protrudes from the surface of the lower mold base (5).

5. The annular workpiece bending and forming device according to claim 1, characterized in that, The end of the second bending groove (21) is provided with a lower cutter (14), which protrudes from the surface of the lower mold base (5); the upper mold base (1) is provided with an upper cutter (4) that cooperates with the lower cutter (14).

6. The annular workpiece bending and forming device according to claim 1, characterized in that, Limiting posts (15) are provided on both sides of the second bending groove (21).

7. The annular workpiece bending and forming device according to claim 1, characterized in that, The lower mold base (5) is provided with an installation groove, and the installation block (16) can be slidably installed in the installation groove; the bottom of the installation groove is provided with a spring (19) for pushing the installation block (16) upward to reset.

8. The annular workpiece bending and forming device according to claim 1, characterized in that, The highest point of the forming column (8) is level with the surface of the lower mold base (5).

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