A kind of round pipe mouth necking processing die

Abstract

The utility model relates to the field of pipe necking processing technology discloses a necking processing die for pipe mouth part, including lower die holder and upper die holder, the top fixed mounting of lower die holder has the lower die plate, the bottom fixed mounting of upper die holder has the upper clamping plate, the outside of lower die plate is provided with the rotary processing mechanism, the bottom of upper clamping plate is provided with the stamping mechanism. The necking processing die for pipe mouth part, through the rotary processing mechanism that sets up, in the use process, through the pusher drive slide block cooperation first spring reciprocating sliding, to make push block drive carousel rotate, and cooperate with the positioning pin structure, make its fixed angle rotation, to realize the positioning rotation conveying to the pipe, cooperate with the necking punch of top to carry out necking processing to it simultaneously, and after necking processing is finished, through the material of retreating punch and push out the pipe fitting, to realize the continuous processing to the pipe, need not manual unloading of artificial, improve the processing efficiency.

Description

Technical Field

[0001] This utility model relates to the field of round tube narrowing processing technology, specifically a mold for narrowing the opening of a round tube. Background Technology

[0002] Tube end reduction processing is a plastic forming process that reduces the diameter of the end of a tube by applying external force. It is widely used in automobile manufacturing, machining, pipeline engineering and other fields, and can realize pipe connection, sealing or meet specific structural requirements.

[0003] Currently, when processing the end of a round tube, a reducing mold is pressed down on the end of the tube to reduce its diameter. However, in actual use, the tube needs to be manually placed under the reducing mold, and then removed after processing. This results in low processing efficiency and poses a safety hazard as it requires manual hand placement into the dangerous area of ​​the mold. Therefore, it is necessary to develop a new mold for reducing the diameter of round tubes to solve these problems. Utility Model Content

[0004] The purpose of this invention is to provide a die for narrowing the opening of a round tube, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a mold for processing the necking of a round tube opening, comprising a lower mold base and an upper mold base, wherein a lower template is fixedly installed on the top of the lower mold base, an upper clamping plate is fixedly installed on the bottom of the upper mold base, a rotating processing mechanism is provided outside the lower template, and a stamping mechanism is provided at the bottom of the upper clamping plate.

[0006] The rotary processing mechanism includes a rotary component and a positioning component. The rotary component is disposed outside the lower template, and the positioning component is disposed inside the lower mold base and the lower template.

[0007] The rotating assembly includes a turntable, which is rotatably mounted on the top of the lower template. A fixed rail is fixedly mounted on the right side of the lower template by bolts. A slide block is slidably mounted on the outside of the fixed rail. A slider is fixedly mounted on the top of the slide block. A fixing block is fixedly mounted on the front of the lower template by bolts. A first spring is fixedly mounted between the fixing block and the slider. A push block is rotatably mounted on the front of the slide block to facilitate the positioning and rotation of the turntable, thereby enabling the repositioning of the round tube.

[0008] Preferably, the slider has a countersunk hole inside, and the first spring is fixedly installed inside the countersunk hole, so that the first spring can drive the slider to reset.

[0009] Preferably, the turntable has a ratchet structure on its exterior, and multiple feeding holes arranged in a circumferential array are provided on the turntable. The pusher block has an inclined structure on its left side to facilitate the pusher block driving the turntable to perform positioning and rotation.

[0010] Preferably, the positioning component includes a limiting block, which is fixedly installed inside the lower mold base. A sliding block is slidably installed inside the lower mold base. A positioning pin is fixedly installed on the top of the sliding block. A second spring is fixedly installed between the bottom of the sliding block and the top of the limiting block to facilitate the rotation and positioning of the turntable.

[0011] Preferably, a through hole is provided at the corresponding position of the lower template and the positioning pin, and the positioning pin is slidably installed inside the through hole to facilitate the sliding of the positioning pin.

[0012] Preferably, the stamping mechanism includes a guide post, which is fixedly installed at the bottom of the upper clamping plate. A tube-shrinking punch is fixedly installed at the bottom of the upper clamping plate, a material-ejecting punch is fixedly installed at the bottom of the upper clamping plate, and a pushing punch is fixedly installed near the right side of the bottom of the upper clamping plate, which facilitates tube-shrinking, material-ejecting, and driving the turntable to rotate.

[0013] Preferably, two guide pillars are provided, and through holes are opened at the corresponding positions of the lower mold base and the lower template and the two guide pillars to facilitate the positioning of the upper mold base and the upper clamping plate.

[0014] Preferably, the lower die base and the lower die plate are provided with a discharge hole at the corresponding position of the ejector punch, so as to facilitate the ejector punch to discharge the round tube.

[0015] Preferably, the bottom front of the push punch is provided with a sloping structure, and the back of the slide is provided with a counter-sloping surface that matches it, so as to facilitate the push punch to slide.

[0016] Compared with the prior art, this utility model provides a mold for narrowing the end of a round tube, which has the following advantages:

[0017] 1. This die for processing the necking of round tube ends uses a rotary processing mechanism. During use, the pusher drives the slide block to reciprocate with the first spring, thereby causing the pusher block to rotate the turntable. With the help of the positioning pin structure, the turntable rotates at a fixed angle, thus achieving the positioning and rotary conveying of the round tube. At the same time, the necking punch at the top performs necking processing. After the necking processing is completed, the tube is pushed out by the ejection punch, thus achieving continuous processing of round tubes without the need for manual unloading, improving processing efficiency.

[0018] 2. This die for processing the necking of round tube openings uses a stamping mechanism. During use, the guide pillar structure positions and lifts the tube for stamping, while the necking punch structure reduces the opening of the round tube. Simultaneously, the ejector punch pushes the round tube out, and the pusher punch structure causes the turntable to rotate, thus changing the position of the round tube. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the appearance and structure of this utility model;

[0021] Figure 2 This is a top view of the structure of this utility model;

[0022] Figure 3 This is an exploded structural diagram of the present invention;

[0023] Figure 4 This is a top view of the lower mold base and connected mechanism of this utility model;

[0024] Figure 5 This is a schematic diagram of the external structure of the slide block and the connected mechanism of this utility model;

[0025] Figure 6 This is a top sectional view of the slide block and its connected mechanism of the present invention.

[0026] Figure 7 This is a schematic diagram of the turntable's external structure according to this utility model;

[0027] Figure 8 This is a cross-sectional view of the lower mold base and the connected mechanism of this utility model.

[0028] In the diagram: 1. Lower die base; 2. Lower template; 3. Upper die base; 4. Upper clamping plate; 5. Rotary machining mechanism; 51. Rotary assembly; 511. Turntable; 512. Fixed rail; 513. Slide block; 514. Slider; 515. Fixed block; 516. First spring; 517. Push block; 52. Positioning assembly; 521. Limiting block; 522. Sliding block; 523. Positioning pin; 524. Second spring; 6. Stamping mechanism; 61. Guide post; 62. Reduction punch; 63. Unloading punch; 64. Pushing punch. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] Example 1:

[0032] To achieve rotational repositioning of the round tube and enable continuous machining, please refer to [link / reference needed]. Figure 1-8 This utility model provides a technical solution: a mold for processing the necking of a round tube opening, including a lower mold base 1 and an upper mold base 3. A lower template 2 is fixedly installed on the top of the lower mold base 1, and an upper clamping plate 4 is fixedly installed on the bottom of the upper mold base 3. A rotating processing mechanism 5 is provided on the outside of the lower template 2, and a stamping mechanism 6 is provided on the bottom of the upper clamping plate 4.

[0033] The rotary processing mechanism 5 includes a rotary component 51 and a positioning component 52. The rotary component 51 is disposed outside the lower template 2, and the positioning component 52 is disposed inside the lower mold base 1 and the lower template 2.

[0034] The rotating assembly 51 includes a turntable 511, which is rotatably mounted on the top of the lower template 2. A fixed rail 512 is fixedly mounted on the right side of the lower template 2 by bolts. A slide block 513 is slidably mounted on the outside of the fixed rail 512. A slider 514 is fixedly mounted on the top of the slide block 513. A fixing block 515 is fixedly mounted on the front of the lower template 2 by bolts. A first spring 516 is fixedly mounted between the fixing block 515 and the slider 514. A push block 517 is rotatably mounted on the front of the slide block 513 to facilitate the positioning and rotation of the turntable 511, thereby realizing the repositioning of the round tube.

[0035] Furthermore, the slider 514 has a countersunk hole inside, and the first spring 516 is fixedly installed inside the countersunk hole, so that the first spring 516 can drive the slider 514 to reset.

[0036] Furthermore, the turntable 511 has a ratchet structure on its exterior, and multiple material feeding holes arranged in a circular array are provided on the turntable 511. The push block 517 has an inclined structure on its left side, which facilitates the push block 517 to drive the turntable 511 to perform positioning and rotation.

[0037] Furthermore, the positioning component 52 includes a limiting block 521, which is fixedly installed inside the lower mold base 1. A sliding block 522 is slidably installed inside the lower mold base 1. A positioning pin 523 is fixedly installed on the top of the sliding block 522. A second spring 524 is fixedly installed between the bottom of the sliding block 522 and the top of the limiting block 521 to facilitate the rotation and positioning of the turntable 511.

[0038] Furthermore, a through hole is provided at the corresponding position of the lower template 2 and the positioning pin 523, and the positioning pin 523 is slidably installed inside the through hole to facilitate the sliding of the positioning pin 523.

[0039] Example 2:

[0040] To achieve the functions of pipe fitting reduction, blanking, and driving the turntable 511 to rotate, this utility model provides another embodiment. Please refer to [link to embodiment]. Figure 3 Furthermore, in conjunction with Embodiment 1, the stamping mechanism 6 includes a guide post 61, which is fixedly installed at the bottom of the upper clamping plate 4. A tube-shrinking punch 62 is fixedly installed at the bottom of the upper clamping plate 4, a material-ejecting punch 63 is fixedly installed at the bottom of the upper clamping plate 4, and a pushing punch 64 is fixedly installed near the right side of the bottom of the upper clamping plate 4, which facilitates tube shrinking, material ejection, and driving the turntable 511 to rotate.

[0041] Furthermore, two guide pillars 61 are provided, and through holes are opened at the corresponding positions of the lower mold base 1 and the lower template 2 and the two guide pillars 61 to facilitate the positioning of the upper mold base 3 and the upper clamping plate 4.

[0042] Furthermore, the lower die base 1 and the lower die plate 2 are provided with blanking holes at the corresponding positions of the ejector punch 63, so that the ejector punch 63 can discharge the round tube.

[0043] Furthermore, the bottom front of the pusher 64 is provided with a sloping structure, and the back of the slide 513 is provided with a counter-sloping surface that matches it, so as to facilitate the pusher 64 to slide the slide 513.

[0044] In actual operation, when this device is used, the round tube is placed into the feeding slot of the turntable 511, the upper die base 3 is connected to the drive structure (such as a cylinder, hydraulic rod, electric telescopic rod), and the drive structure drives the upper die base 3 to move upward, so that the upper clamping plate 4 drives the reducing punch to move downward, so that the reducing punch performs reducing processing on the round tube. At the same time, the push punch 64 moves downward, so that the push punch 64 presses the slide 513, so that the slide 513 drives the slider 514 to slide forward, so that the push block 517 on the slider 514 pushes forward, so that it drives the turntable 511 to rotate through the ratchet structure on the turntable 511. At the same time, the second spring 524 pushes the positioning pin 523 upward, so that the positioning pin 523 positions the turntable 511. At this time, the processed round tube is rotated and repositioned, and the unprocessed round tube is moved to the bottom of the reducing punch. At the same time, the ejector punch 63 cooperates with the discharge hole to discharge the processed round tube.

[0045] The drive structure drives the upper mold base 3 and the upper clamping plate 4 to move upward. At this time, the punch 64 is pushed to move upward. The first spring 516 resets the slide block 513 and the slider 514. When the push block 517 touches the pawl on the turntable 511, it rotates counterclockwise. The pawl cannot drive the turntable 511 to rotate.

[0046] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A die for narrowing the end of a round tube, comprising a lower die base (1) and an upper die base (3), characterized in that: The lower mold base (1) is fixedly installed with a lower template (2) at the top, the upper mold base (3) is fixedly installed with an upper clamping plate (4) at the bottom, a rotary processing mechanism (5) is provided on the outside of the lower template (2), and a stamping mechanism (6) is provided on the bottom of the upper clamping plate (4). The rotary processing mechanism (5) includes a rotary component (51) and a positioning component (52). The rotary component (51) is disposed outside the lower template (2), and the positioning component (52) is disposed inside the lower mold base (1) and the lower template (2). The rotating assembly (51) includes a turntable (511) which is rotatably mounted on the top of the lower template (2). A fixed rail (512) is fixedly mounted on the right side of the lower template (2) by bolts. A slide block (513) is slidably mounted on the outside of the fixed rail (512). A slider (514) is fixedly mounted on the top of the slide block (513). A fixing block (515) is fixedly mounted on the front of the lower template (2) by bolts. A first spring (516) is fixedly mounted between the fixing block (515) and the slider (514). A push block (517) is rotatably mounted on the front of the slide block (513).

2. A die for narrowing the opening of a round tube according to claim 1, characterized in that: The slider (514) has a countersunk hole inside, and the first spring (516) is fixedly installed inside the countersunk hole.

3. A die for narrowing the opening of a round tube according to claim 1, characterized in that: The turntable (511) is provided with a ratchet structure on the outside, and a plurality of feeding holes are provided on the turntable (511) in a circular array. The push block (517) is provided with an inclined structure on the left side.

4. A die for narrowing the opening of a round tube according to claim 1, characterized in that: The positioning component (52) includes a limiting block (521), which is fixedly installed inside the lower mold base (1). A sliding block (522) is slidably installed inside the lower mold base (1). A positioning pin (523) is fixedly installed on the top of the sliding block (522). A second spring (524) is fixedly installed between the bottom of the sliding block (522) and the top of the limiting block (521).

5. A die for narrowing the opening of a round tube according to claim 4, characterized in that: The lower template (2) and the positioning pin (523) are provided with through holes at corresponding positions, and the positioning pin (523) is slidably installed inside the through holes.

6. A die for narrowing the opening of a round tube according to claim 1, characterized in that: The stamping mechanism (6) includes a guide post (61), which is fixedly installed at the bottom of the upper clamping plate (4). A tube shrinking punch (62) is fixedly installed at the bottom of the upper clamping plate (4), a material ejection punch (63) is fixedly installed at the bottom of the upper clamping plate (4), and a pushing punch (64) is fixedly installed at the bottom of the upper clamping plate (4) near the right side.

7. A die for narrowing the opening of a round tube according to claim 6, characterized in that: Two guide pillars (61) are provided, and through holes are opened at the corresponding positions of the lower mold base (1) and the lower template (2) and the two guide pillars (61).

8. A die for narrowing the opening of a round tube according to claim 6, characterized in that: The lower die base (1) and the lower template (2) are provided with blanking holes at the corresponding positions of the ejector punch (63).

9. A die for narrowing the opening of a round tube according to claim 6, characterized in that: The bottom front of the push punch (64) is provided with a sloping structure, and the back of the slide (513) is provided with a reverse sloping surface that matches it.

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