A three clamp die mechanism

Abstract

The utility model discloses a three clamping die mechanism relates to the stamping field, including base, the base is from below to above sequentially provided with first clamping die mechanism, second clamping die mechanism, third clamping die mechanism, first clamping die mechanism, second clamping die mechanism, third clamping die mechanism carry out one clamping treatment to metal pipe all, and the clamping fixed point of first clamping die mechanism, second clamping die mechanism, third clamping die mechanism vertical coincides, makes the metal pipe of clamping always keep in the original position. The utility model discloses three clamping die mechanism integrated assembly on the same base, realize to the same metal pipe gradually stamping treatment, replaced the traditional multiple continuous arrangement's mould, make stamping die integration, not only greatly reduced the space of mould occupied, and need not to carry the metal pipe of multiple stamping, greatly shorten the required time of stamping, thereby improved the production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of stamping, and in particular to a three-clamp die mechanism. Background Technology

[0002] Stamping dies are special process equipment used in cold stamping to process materials into parts or semi-finished products. They are called cold stamping dies (commonly known as cold stamping dies). The stamping principle is to use dies installed on a press to apply pressure to the material, causing it to separate or plastically deform. Taking metal pipes as an example, punching is often required at the pipe openings during the processing.

[0003] Existing stamping dies can only complete one stamping process. When stamping metal tubes multiple times, multiple continuous dies are generally arranged to transfer the stamped metal tube to the next die to continue stamping until the desired shape is achieved.

[0004] The aforementioned existing technology has the following problems in actual use: multiple molds arranged in a continuous manner not only occupy a large space, but also require multiple transfers and handling by multiple metal tubes, wasting a lot of time and thus reducing production efficiency. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a three-clamp mold mechanism to solve the problems existing in the background art.

[0006] This utility model provides the following technical solution: a three-clamping mechanism, including a base, wherein a first clamping mechanism, a second clamping mechanism, and a third clamping mechanism are arranged sequentially from bottom to top on the base. The first clamping mechanism, the second clamping mechanism, and the third clamping mechanism each perform a clamping process on the metal tube once, and the clamping fixing points of the first clamping mechanism, the second clamping mechanism, and the third clamping mechanism are vertically coincident, so that the clamped metal tube is always kept in the original position.

[0007] Preferably, the first clamping mechanism is detachably installed on one side of the bottom of the base, the second clamping mechanism is detachably installed on the middle of the back of the base, and the third clamping mechanism is detachably installed on both sides of the top of the base.

[0008] Preferably, the first clamping mechanism includes a fixed template, a fixed clamping module, a first hydraulic cylinder, a movable template, and a movable clamping module. The fixed template and the movable template are symmetrically arranged on both sides of the bottom of the base, and the opposite sides are respectively equipped with a fixed clamping module and a movable clamping module for clamping metal tubes. The first hydraulic cylinder is located on one side of the base, and its piston end passes through the base and is connected to the movable clamping mold.

[0009] Preferably, the second clamping mechanism includes a second hydraulic cylinder, a connecting rod, a large wedge block, a small wedge block, and a second clamping module. The second hydraulic cylinder is located in the middle of the back side of the base, and its piston end passes through the base and is connected to the connecting rod. The two ends of the connecting rod are respectively connected to the large wedge block. The small wedge block is slidably mounted on one side of the large wedge block and is elastically placed on the base. The second clamping module is mounted on the other side of the small wedge block.

[0010] Preferably, the second clamping mechanism further includes a guide rail, which is bolted to the inner wall of the base, wherein the other side of the large wedge block is slidably mounted inside the guide rail.

[0011] Preferably, the second clamping mechanism further includes a spring, one end of which is connected to the bottom of one side of the small wedge block and located below the second clamping module, and the other end is connected to the fixed clamping module / moving clamping module.

[0012] Preferably, a limiting groove is provided on the inclined surface of the large wedge block that contacts the small wedge block, and a limiting protrusion is provided on the inclined surface of the small wedge block that contacts the large wedge block. The limiting protrusion is adapted to and slidably connected with the limiting groove.

[0013] Preferably, a groove is provided on the top of both the fixed template and the moving template for sliding assembly of the second clamping module and for limiting its position.

[0014] Preferably, the third clamping mechanism includes two third hydraulic cylinders, each of which has an assembly block connected to its piston end, and a third clamping module is detachably mounted on one side of the assembly block.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] This invention integrates three clamping mechanisms onto the same base, enabling the step-by-step stamping of the same metal tube. This replaces the traditional multiple continuously arranged molds, integrating the stamping dies. This not only greatly reduces the space occupied by the molds but also eliminates the need to transport the metal tubes that have been stamped multiple times, significantly shortening the stamping time and thus improving production efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is a schematic diagram of a clamping mechanism of the present invention.

[0019] Figure 3 This is a schematic diagram of the two-clamping mold mechanism of this utility model.

[0020] Figure 4 This is a schematic diagram of the wedge block structure of this utility model.

[0021] Figure 5 This is a schematic diagram of the assembly structure of the fixed / moving template and the second clamping module of this utility model.

[0022] Figure 6 This is a schematic diagram of the third clamping mold mechanism of this utility model.

[0023] The attached figures are labeled as follows:

[0024] 1. Base;

[0025] 2. First clamping mechanism; 21. Fixed template; 22. Fixed clamping module; 23. First hydraulic cylinder; 24. Moving template; 25. Moving clamping module;

[0026] 3. Second clamping mechanism; 31. Second hydraulic cylinder; 32. Connecting rod; 33. Large wedge block; 331. Limiting slide groove; 34. Guide rail; 35. Small wedge block; 351. Limiting protrusion; 36. Second clamping module; 37. Spring;

[0027] 4. Third clamping mechanism; 41. Third hydraulic cylinder; 42. Assembly block; 43. Third clamping module. Detailed Implementation

[0028] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby providing a clearer and more definite definition of the scope of protection of the present invention.

[0029] This utility model provides a three-clamp mold mechanism, such as Figure 1-6 As shown, it includes a base 1, a first clamping mechanism 2, a second clamping mechanism 3, and a third clamping mechanism 4. The first clamping mechanism 2, the second clamping mechanism 3, and the third clamping mechanism 4 are arranged sequentially from bottom to top on the base 1, and each of the first clamping mechanism 2, the second clamping mechanism 3, and the third clamping mechanism 4 performs a clamping process on the metal tube.

[0030] Specifically, the first clamping mechanism 2 is detachably installed on one side of the bottom of the base 1, the second clamping mechanism 3 is detachably installed on the middle of the back of the base 1, and the third clamping mechanism 4 is detachably installed on both sides of the top of the base 1. The clamping and fixing points of the first clamping mechanism 2, the second clamping mechanism 3, and the third clamping mechanism 4 are vertically aligned, so that the clamped metal tube is always kept in its original position.

[0031] It can be explained here that the first clamping mechanism 2, the second clamping mechanism 3, and the third clamping mechanism 4 clamp the metal tube in a bottom-up order. That is, when the first clamping mechanism 2 clamps the metal tube, the second clamping mechanism 3 and the third clamping mechanism 4 do not clamp. After the first clamping mechanism 2 completes the stamping with the stamping head, it maintains the clamping state (to protect the part of the metal tube that has been stamped and formed, and prevent damage caused by the next stamping). At this time, the second clamping mechanism 3 clamps the metal tube to realize the second stamping, and this process is repeated until the stamping process is completed.

[0032] By integrating three clamping mechanisms onto the same base 1, the same metal tube can be stamped step by step, replacing the traditional multiple continuously arranged molds. This integration of stamping dies not only greatly reduces the space occupied by the molds, but also eliminates the need to transport the metal tubes that have been stamped multiple times, thus significantly shortening the stamping time and improving production efficiency.

[0033] In this embodiment, the first clamping mechanism 2 includes a fixed template 21, a fixed clamping module 22, a first hydraulic cylinder 23, a movable template 24, and a movable clamping module 25. The fixed template 21 and the movable template 24 are symmetrically arranged on both sides of the bottom of the base 1, and fixed clamping modules 22 and movable clamping modules 25 for clamping metal tubes are respectively mounted on their opposite surfaces. The first hydraulic cylinder 23 is located on one side of the base 1, and its piston end penetrates the base 1 and connects to the movable clamping module. When the first clamping mechanism 2 clamps the metal tube, the first hydraulic cylinder 23 pushes the movable template 24 towards the fixed template 21 until the movable clamping module 25 and the fixed clamping module 22 fully contact and adhere to the outer wall of the metal tube, thus clamping the metal tube. At this point, the metal tube can be stamped using a stamping head.

[0034] In this embodiment, the second clamping mechanism 3 includes a second hydraulic cylinder 31, a connecting rod 32, a large wedge block 33, a small wedge block 35, and a second clamping module 36. The second hydraulic cylinder 31 is located in the middle of the back side of the base 1, and its piston end passes through the base 1 and is connected to the connecting rod 32. The two ends of the connecting rod 32 are respectively connected to the large wedge block 33. The small wedge block 35 is slidably mounted on one side of the large wedge block 33, and the small wedge block 35 is elastically placed on the base 1. The second clamping module 36 is mounted on the other side of the small wedge block 35. When the second clamping mechanism 3 clamps the metal tube, the second hydraulic cylinder 31 pushes the connecting rod 32 to move forward. The connecting rod 32 simultaneously pushes the two large wedge blocks 33 to slide forward, so that the large wedge blocks 33 push the small wedge blocks 35 towards the center of the metal tube until the second clamping module 36 is in full contact with the outer wall of the metal tube to clamp the metal tube. At this time, the metal tube can be stamped a second time by the stamping head.

[0035] Furthermore, the second clamping mechanism 3 also includes a guide rail 34, which is bolted to the inner wall of the base 1. The other side of the large wedge block 33 is slidably fitted inside the guide rail 34. The guide rail 34 is used to improve the stability of the horizontal movement of the large wedge block 33 and prevent the large wedge block 33 from shifting position.

[0036] Furthermore, the second clamping mechanism 3 also includes springs 37. Springs 37 are respectively disposed between one of the small wedge blocks 35 and the fixed clamping module 22, and between the other small wedge block 35 and the movable clamping module 25. One end of each spring 37 is connected to the bottom of one side of the small wedge block 35 and located below the second clamping module 36, and the other end is connected to the fixed clamping module 22 / movable clamping module 25. Four springs 37 are provided on each side. When the second clamping mechanism 3 resets, the large wedge block 33 moves backward, and the small wedge blocks 35 reset using the elastic force of the springs 37.

[0037] Furthermore, a limiting groove 331 is provided on the inclined surface of the large wedge block 33 that contacts the small wedge block 35, and a limiting protrusion 351 is provided on the inclined surface of the small wedge block 35 that contacts the large wedge block 33. The limiting protrusion 351 is adapted to and slidably connected with the limiting groove 331. Under the sliding limitation of the limiting protrusion 351 and the limiting groove 331, the stability of the sliding between the large wedge block 33 and the small wedge block 35 is improved, and the positional displacement is avoided during the sliding displacement.

[0038] Furthermore, a groove is provided on the top of both the fixed template 21 and the moving template 24 for sliding assembly of the second clamping module 36 and limiting its position. The template set by the first clamping mechanism 2 limits the second clamping module 36 set by the second clamping mechanism 3 in a horizontal direction, so that the second clamping module 36 can only move in a horizontal direction. There is no need to set a separate limiting structure for the second clamping module 36, which further improves the integration of the clamping mechanism.

[0039] In this embodiment, the third clamping mechanism 4 includes two third hydraulic cylinders 41. The piston end of each third hydraulic cylinder 41 is connected to an assembly block 42, and a third clamping module 43 is detachably mounted on one side of the assembly block 42. When the third clamping mechanism 4 clamps the metal tube, the two third hydraulic cylinders 41 simultaneously push the assembly block 42 forward toward the center of the metal tube until the third clamping module 43 fully contacts and adheres to the outer wall of the metal tube to clamp the metal tube. At this time, the metal tube can be subjected to a third stamping process by a stamping head.

[0040] Several points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection" and "linkage" should be interpreted broadly, and can be mechanical or electrical connection, or internal connection between two components, or direct connection. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationship. When the absolute position of the described object changes, the relative positional relationship may change.

[0041] The above description is only a preferred embodiment of the present utility model. The protection scope of the present utility model is not limited to the above embodiments. Any equivalent modifications or changes made by those skilled in the art based on the content disclosed in the present utility model should be included in the protection scope recorded in the claims.

Claims

1. A three-clamp mold mechanism, comprising a base (1), characterized in that: The base (1) is provided with a first clamping mechanism (2), a second clamping mechanism (3), and a third clamping mechanism (4) from bottom to top. The first clamping mechanism (2), the second clamping mechanism (3), and the third clamping mechanism (4) clamp the metal tube once, and the clamping and fixing points of the first clamping mechanism (2), the second clamping mechanism (3), and the third clamping mechanism (4) are vertically coincident, so that the clamped metal tube is always kept in the original position.

2. The three-clamping mold mechanism according to claim 1, characterized in that: The first clamping mechanism (2) is detachably installed on the bottom side of the base (1), the second clamping mechanism (3) is detachably installed on the back center of the base (1), and the third clamping mechanism (4) is detachably installed on the top two sides of the base (1).

3. The three-clamping mold mechanism according to claim 2, characterized in that: The first clamping mechanism (2) includes a fixed template (21), a fixed clamping module (22), a first hydraulic cylinder (23), a moving template (24), and a moving clamping module (25). The fixed template (21) and the moving template (24) are symmetrically arranged on both sides of the bottom of the base (1), and the opposite sides are respectively equipped with a fixed clamping module (22) and a moving clamping module (25) for clamping metal tubes. The first hydraulic cylinder (23) is located on one side of the base (1), and its piston end passes through the base (1) and is connected to the moving clamping mold.

4. A three-clamping mold mechanism according to claim 3, characterized in that: The second clamping mechanism (3) includes a second hydraulic cylinder (31), a connecting rod (32), a large wedge block (33), a small wedge block (35), and a second clamping module (36). The second hydraulic cylinder (31) is located in the middle of the back of the base (1), and its piston end passes through the base (1) and is connected to the connecting rod (32). The two ends of the connecting rod (32) are respectively connected to the large wedge block (33). The small wedge block (35) is slidably mounted on one side of the large wedge block (33), and the small wedge block (35) is elastically placed on the base (1). The other side of the small wedge block (35) is equipped with the second clamping module (36).

5. A three-clamping mold mechanism according to claim 4, characterized in that: The second clamping mechanism (3) also includes a guide rail (34), which is bolted to the inner wall of the base (1), wherein the other side of the large wedge block (33) is slidably mounted inside the guide rail (34).

6. A three-clamping mold mechanism according to claim 4, characterized in that: The second clamping mechanism (3) also includes a spring (37), one end of which is connected to the bottom of one side of the small wedge block (35) and located below the second clamping module (36), and the other end is connected to the fixed clamping module (22) / moving clamping module (25).

7. A three-clamping mold mechanism according to claim 4, characterized in that: A limiting groove (331) is provided on the inclined surface of the large wedge block (33) that contacts the small wedge block (35), and a limiting protrusion (351) is provided on the inclined surface of the small wedge block (35) that contacts the large wedge block (33). The limiting protrusion (351) is adapted to and slidably connected with the limiting groove (331).

8. A three-clamping mold mechanism according to claim 4, characterized in that: The top of both the fixed template (21) and the moving template (24) has a groove for sliding assembly of the second clamping module (36) and for limiting its position.

9. A three-clamp mold mechanism according to claim 1, characterized in that: The third clamping mechanism (4) includes two third hydraulic cylinders (41), and each third hydraulic cylinder (41) has a piston end connected to an assembly block (42). A third clamping module (43) is detachably installed on one side of the assembly block (42).

Images