A convex rib stamping device for a pipe-shaped formed member

Abstract

The utility model discloses a kind of convex rib stamping device of pipe class forming piece, including pipe clamp, the stamping die is equipped in the telescopic end of pipe clamp, one side of the stamping die is equipped with convex rib die cavity, both sides of the convex rib die cavity are equipped with stripping assembly, the stripping assembly is placed in the stamping die inside;The installation cavity of stripping assembly is equipped in the stamping die inside and located both sides of the convex rib die cavity, one end of the installation cavity leads to the convex rib die cavity, and the inside of the installation cavity is also equipped with limit cavity;The stripping assembly of the utility model is set in both sides of convex rib die cavity, and provide elastic force by compression spring, after stamping is completed, workpiece can be automatically or auxiliary push stripping module and eject from die cavity;Meanwhile, stripping pull ring design is convenient for manual or mechanical operation, further simplifies stripping process;The installation cavity and limit cavity are equipped in the stamping die inside, stripping assembly is integrated therein, overall structure is compact, does not occupy additional space.

Description

Technical Field

[0001] This utility model specifically relates to a punching device for protruding ridges on tubular forming parts. Background Technology

[0002] In fields such as machinery manufacturing and pipeline engineering, the convex rib structure on the outer periphery of pipe forming parts is widely used. Its core functions include enhancing the ring stiffness of the pipe to improve its resistance to external pressure, achieving sealing and positioning in pipeline connections, and optimizing the force transmission efficiency in component assembly.

[0003] Existing tube punching devices are mostly based on the traditional upper and lower die closing structure design. They mainly use a sliding block clamping positioning die. The lower die slide closes to form a fixed cavity that matches the outer contour of the tube. The upper die cavity is pressed down to form the convex ridge. This can avoid excessive radial deformation of the tube to a certain extent. However, because the tube undergoes plastic deformation during the punching process, it is easy to form a tight fit with the die surface. Traditional devices often have the problem of the tube getting stuck in the fixed cavity after the convex ridge is formed. Tools are needed to pry and remove the part, which not only reduces efficiency but also easily causes damage to the edge of the convex ridge.

[0004] Therefore, it is necessary to invent a punching device for protruding ridges of tubular forming parts to solve the above problems. Utility Model Content

[0005] (a) Purpose of the utility model To address the technical problems existing in the background art, this utility model proposes a punching device for protruding ridges of tubular forming parts.

[0006] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: a tube forming part punching device, including a tube clamp, a punching die at the telescopic end of the tube clamp, a punching die cavity near the end of the tube clamp on one side of the punching die, and demolding components installed on both sides of the punching die cavity, the demolding components being placed inside the punching die; The stamping die has mounting cavities on both sides of the convex die cavity for mounting the demolding components. One end of the mounting cavity is connected to the convex die cavity, and the other end extends to the outside of the stamping die. A limiting cavity is also provided inside the mounting cavity. The demolding assembly includes a demolding module, the end of which is attached to the inner wall of the convex die cavity. An extension post is connected to the end of the demolding module. A positioning plate is provided in the middle of the extension post. A limiting ring is provided on the outer wall of the extension post at the position of the limiting cavity. A compression spring is provided between one side of the limiting ring and the bottom of the limiting cavity. The end of the extension post extends to the outside of the stamping die, and a demolding pull ring is also provided at its end. A retaining ring is also provided on the inner side of the demolding pull ring at the outside of the stamping die. The stamping die has a positioning hole at the top, and a positioning component is installed in the positioning hole. The positioning component passes through the positioning hole and positions and fixes the positioning plate, that is, the demolding component is fixed in the mounting cavity.

[0007] Preferably, the top of the stamping die is provided with a fixing screw hole outside the positioning hole, the positioning component includes a positioning rod that passes through the positioning hole, the positioning plate is provided with a through hole that matches the positioning rod, and the bottom of the mounting cavity is provided with a fixing hole that matches the positioning rod below the through hole. The top of the positioning rod is provided with a fixing screw cap at the position of the fixing screw hole, and the top of the fixing screw cap is provided with a positioning pull ring.

[0008] Preferably, the size of the fixing screw cap matches the internal size of the fixing screw hole, and the height of the fixing screw cap is greater than the depth of the fixing screw hole.

[0009] Preferably, the limiting cavity is cylindrical in shape and its overall cross-sectional dimension is larger than that of the mounting cavity. The compression spring is placed inside the limiting cavity. The size of the limiting ring matches the cross-sectional dimension of the limiting cavity, and a telescopic space is reserved between the end of the limiting ring and the end of the limiting cavity at the initial position.

[0010] Preferably, the shape of the detachable module side matches the shape of the inner wall of the convex mold cavity.

[0011] Preferably, the overall length of the extension column is such that the demolding module protrudes into the convex mold cavity.

[0012] Compared with the prior art, the beneficial effects of the above-mentioned technical solution of this utility model are: 1. The demolding assembly of this utility model is set on both sides of the convex die cavity and provides elastic force through compression springs. After stamping, it can automatically or assistedly push the demolding module to push the workpiece out of the die cavity, effectively preventing the workpiece from sticking to the die or getting stuck, significantly shortening the demolding time and improving production efficiency. At the same time, the demolding pull ring design facilitates manual or mechanical operation, further simplifying the demolding process. 2. The stamping die of this utility model has an installation cavity and a limiting cavity inside, and the demolding component is integrated therein. The overall structure is compact and does not occupy extra space. The design of the limiting cavity and the compression spring allows the demolding module to automatically reset after demolding, reducing manual intervention. In addition, the positioning component can be easily disassembled and installed, which facilitates the maintenance, replacement or adjustment of the demolding component and reduces equipment maintenance costs. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic cross-sectional view of one side of the stamping die of this utility model. Figure 3 This is a schematic diagram of the disassembled structure of the demolding component of this utility model; Figure 4 This is a schematic diagram of the top part of the stamping die of this utility model; Figure 5 This is a structural schematic diagram of the demolding component of this utility model from another perspective.

[0015] Explanation of reference numerals in the attached figures: 1. Pipe fitting clamp; 2. Stamping die; 21. Convex die cavity; 22. Mounting cavity; 23. Limiting cavity; 24. Positioning hole; 25. Fixing screw hole; 26. Fixing hole; 3. Demolding assembly; 31. Demolding module; 32. Extension column; 33. Positioning plate; 331. Through hole; 34. Limiting ring; 35. Compression spring; 36. Demolding pull ring; 37. Retaining ring; 4. Positioning assembly; 41. Positioning rod; 42. Fixing screw cap; 43. Positioning pull ring. Detailed Implementation

[0016] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0017] This utility model provides, for example Figure 1-4 The device for stamping protrusions of tubular forming parts shown includes a tubular clamp 1, a stamping die 2 at the telescopic end of the tubular clamp 1, a protrusion cavity 21 on one side of the stamping die 2 near the end of the tubular clamp 1, and demolding components 3 installed on both sides of the protrusion cavity 21, with the demolding components 3 placed inside the stamping die 2. Specifically, the stamping die 2 has mounting cavities 22 on both sides of the convex die cavity 21 for mounting the demolding component 3. One end of the mounting cavity 22 is connected to the convex die cavity 21, and the other end extends to the outside of the stamping die 2. The mounting cavity 22 also has a limiting cavity 23 inside. Specifically, the demolding assembly 3 includes a demolding module 31, the end of which is attached to the inner wall of the convex mold cavity 21. An extension post 32 is connected to the end of the demolding module 31. A positioning plate 33 is provided in the middle of the extension post 32. A limiting ring 34 is provided on the outer wall of the extension post 32 at the position of the limiting cavity 23. A compression spring 35 is provided between one side of the limiting ring 34 and the bottom of the limiting cavity 23. The end of the extension post 32 extends to the outside of the stamping die 2, and a demolding pull ring 36 is also provided at its end. A retaining ring 37 is also provided on the inner side of the demolding pull ring 36 at the outside of the stamping die 2. Specifically, the top of the stamping die 2 is provided with a positioning hole 24, and a positioning component 4 is installed in the positioning hole 24. The positioning component 4 passes through the positioning hole 24 and positions and fixes the positioning plate 33, that is, the demolding component 3 is fixed in the mounting cavity 22.

[0018] Specifically, the top positioning hole 24 of the stamping die 2 is also provided with a fixing screw hole 25. The positioning component 4 includes a positioning rod 41, which passes through the positioning hole 24. The positioning plate 33 is provided with a through hole 331 that matches the positioning rod 41. The bottom of the mounting cavity 22 is provided with a fixing hole 26 that matches the positioning rod 41 below the through hole 331. The top of the positioning rod 41 is provided with a fixing screw cap 42 at the position of the fixing screw hole 25. The top of the fixing screw cap 42 is provided with a positioning pull ring 43.

[0019] Specifically, the size of the fixing screw cap 42 matches the internal size of the fixing screw hole 25, and the height of the fixing screw cap 42 is greater than the depth of the fixing screw hole 25.

[0020] Specifically, the limiting cavity 23 is cylindrical in shape and its overall cross-sectional dimensions are larger than those of the mounting cavity 22. The compression spring 35 is placed inside the limiting cavity 23. The size of the limiting ring 34 matches the cross-sectional dimensions of the limiting cavity 23, and a telescopic space is reserved between the end of the limiting ring 34 and the end of the limiting cavity 23 at the initial position.

[0021] Specifically, the shape of one side of the demolding module 31 matches the shape of the inner wall of the convex mold cavity 21.

[0022] Specifically, the overall length of the extension column 32 is such that the demolding module 31 protrudes into the convex cavity 21.

[0023] In this embodiment, the stamping die 2 is fixedly installed on the telescopic end of the pipe fitting clamp 1 to ensure that the connection between the two is firm and the coaxiality meets the requirements, thus ensuring that the die is subjected to uniform force during the subsequent stamping process. During the installation process, the position of the stamping die 2 needs to be calibrated so that the convex cavity 21 on one side near the end of the pipe fitting clamp 1 corresponds precisely to the position of the pipe fitting to be stamped held by the pipe fitting clamp 1, providing a basic positioning for convex ridge forming.

[0024] Specifically, the stamping die 2 has pre-set mounting cavities 22 corresponding to both sides of the convex die cavity 21. One end of the mounting cavity 22 leads to the convex die cavity 21, and the other end extends to the outside of the stamping die 2. The mounting cavity 22 also integrates a limiting cavity 23. During assembly, the ejector module 31 is inserted from the end of the mounting cavity 22 closest to the convex die cavity 21, so that the end of the ejector module 31 fits against the inner wall of the convex die cavity 21. Because the shape of one side of the ejector module 31 perfectly matches the shape of the inner wall of the convex die cavity 21, the integrity of the inner wall of the convex die cavity 21 can be guaranteed, avoiding affecting the forming accuracy of the convex ridge. Then, the extension column 32 is connected and fixed to the end of the ejector module 31 to ensure that the two move synchronously. A positioning plate 33 is installed in the middle of the extension column 32, and a limiting ring 34 is fitted on the outer wall of the middle section. The limiting ring 34 is adjusted to the corresponding position of the limiting cavity 23 and then fixed.

[0025] Specifically, a compression spring 35 is fitted onto the section of the extension post 32 located in the limiting cavity 23, with one end of the compression spring 35 abutting against one side of the limiting ring 34 and the other end abutting against the bottom of the limiting cavity 23. At this time, a space for expansion and contraction is reserved between the end of the limiting ring 34 and the end of the limiting cavity 23 in its initial position, ensuring that the compression spring 35 has expansion and contraction allowance. Then, the end of the extension post 32 is extended to the outside of the stamping die 2, and a demolding pull ring 36 is installed at the end. A retaining ring 37 is fixed on the outside of the stamping die 2 inside the demolding pull ring 36. The retaining ring 37 can limit the demolding pull ring 36 from getting too close and avoid excessive friction with the surface of the stamping die 2.

[0026] Specifically, the top of the stamping die 2 has a pre-set positioning hole 24 and an external fixing screw hole 25, and the bottom of the mounting cavity 22 has a fixing hole 26 corresponding to the through hole 331 of the positioning plate 33. The positioning rod 41 is passed through the positioning hole 24, its lower end is aligned with the through hole 331 of the positioning plate 33 and inserted into the fixing hole 26 at the bottom of the mounting cavity 22 to achieve the initial positioning of the positioning plate 33; then the fixing screw cap 42 is screwed into the fixing screw hole 25. The size of the fixing screw cap 42 matches the internal size of the fixing screw hole 25, and the height of the fixing screw cap 42 is higher than the depth of the fixing screw hole 25 to ensure that there is operable disassembly space after tightening; finally, the positioning pull ring 43 is installed on the top of the fixing screw cap 42 to complete the assembly of the entire device.

[0027] In this embodiment, the device ensures the accuracy of the punching of the protrusion through a multi-positioning structure. On one hand, the positioning rod 41 in the positioning assembly 4 passes through the through hole 331 of the positioning plate 33 and is inserted into the fixing hole 26. With the threaded locking of the fixing screw cap 42, the demolding assembly 3 is completely fixed in the mounting cavity 22 during the punching process, avoiding the displacement of the demolding module 31 and the resulting change in the size of the protrusion die cavity 21. On the other hand, the cooperation between the limiting cavity 23 and the limiting ring 34 restricts the extension and retraction range of the demolding assembly 3, ensuring the consistency of the initial position of the demolding module 31 and making the size of the protrusion uniform for each punching. In addition, the shape of the demolding module 31 is precisely matched with the inner wall of the protrusion die cavity 21, further ensuring the contour accuracy and surface smoothness of the protrusion forming.

[0028] In this embodiment, the structural design of the device makes operation more flexible and convenient. The height of the fixing screw cap 42 of the positioning component 4 is higher than the depth of the fixing screw hole 25, which makes it easy for the operator to quickly loosen or tighten the fixing screw cap 42 through the positioning pull ring 43; the setting of the demolding pull ring 36 makes the demolding operation more labor-saving, and a single person can complete the entire demolding process. In addition, the pipe clamp 1 of the device has a telescopic function, which can be adapted to pipe workpieces of different lengths. The structure of the convex die cavity 21 can be replaced according to different convex size requirements, which improves the versatility of the device and is suitable for convex stamping processing of various specifications of pipe forming parts.

[0029] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A punching device for protruding ridges on tubular forming parts, characterized in that: The device includes a pipe fitting clamp (1), the pipe fitting clamp (1) has a stamping die (2) at its telescopic end, and a convex cavity (21) is provided on one side of the stamping die (2) near the end of the pipe fitting clamp (1). Demolding components (3) are installed on both sides of the convex cavity (21), and the demolding components (3) are placed inside the stamping die (2). The stamping die (2) has mounting cavities (22) for mounting the demolding component (3) on both sides of the convex die cavity (21). One end of the mounting cavity (22) is connected to the convex die cavity (21), and the other end extends to the outside of the stamping die (2). The mounting cavity (22) also has a limiting cavity (23). The demolding assembly (3) includes a demolding module (31), the end of which is attached to the inner wall of the convex die cavity (21). The end of the demolding module (31) is connected to an extension post (32). A positioning plate (33) is provided in the middle of the extension post (32). A limiting ring (34) is provided on the outer wall of the extension post (32) at the position of the limiting cavity (23). A compression spring (35) is provided between one side of the limiting ring (34) and the bottom of the limiting cavity (23). The end of the extension post (32) extends to the outside of the stamping die (2), and a demolding pull ring (36) is also provided at its end. A retaining ring (37) is also provided on the inner side of the demolding pull ring (36) at the outside of the stamping die (2). The stamping die (2) has a positioning hole (24) at the top. A positioning component (4) is installed in the positioning hole (24). The positioning component (4) passes through the positioning hole (24) and positions and fixes the positioning plate (33), that is, the demolding component (3) is fixed in the mounting cavity (22).

2. The tube forming part punching device according to claim 1, characterized in that: The stamping die (2) is provided with a fixing screw hole (25) outside the positioning hole (24) at the top. The positioning component (4) includes a positioning rod (41) that passes through the positioning hole (24). The positioning plate (33) is provided with a through hole (331) that matches the positioning rod (41). The bottom of the mounting cavity (22) is provided with a fixing hole (26) that matches the positioning rod (41) below the through hole (331). The top of the positioning rod (41) is provided with a fixing screw cap (42) at the position of the fixing screw hole (25). The top of the fixing screw cap (42) is provided with a positioning pull ring (43).

3. The tube forming part punching device according to claim 2, characterized in that: The size of the fixing screw cap (42) matches the internal size of the fixing screw hole (25), and the height of the fixing screw cap (42) is greater than the depth of the fixing screw hole (25).

4. The tube-shaped forming part punching device according to claim 1, characterized in that: The limiting cavity (23) is cylindrical in shape and its overall cross-sectional dimension is larger than that of the mounting cavity (22). The compression spring (35) is placed inside the limiting cavity (23). The size of the limiting ring (34) matches the cross-sectional dimension of the limiting cavity (23). The initial position of the limiting ring (34) has a reserved expansion space between its end and the end of the limiting cavity (23).

5. The punching device for protruding ridges of tubular forming parts according to claim 1, characterized in that: The shape of one side of the demolding module (31) matches the shape of the inner wall of the convex mold cavity (21).

6. The tube-shaped forming part punching device according to claim 1, characterized in that: The overall length of the extension column (32) is such that the demolding module (31) protrudes into the convex mold cavity (21).

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