Punch structure of stainless steel pipe fitting high-pressure forming die

Abstract

The utility model belongs to the technical field of pipe fitting machining, and provides a punch structure of a stainless steel pipe fitting high-pressure forming die, the punch structure comprises a body, a needle head, a pin and a spring, a supporting part is arranged at the top of the body, and a movable groove is formed in the supporting part in the radial direction of the supporting part; the needle head is arranged on the supporting part in a sleeving manner, a positioning groove corresponding to the movable groove is formed in the needle head, and a top hole communicated with the positioning groove is formed in the needle head; the pin is inserted into the movable groove and is provided with a top cap; the pin is sleeved with the spring, one end of the spring abuts against the inner wall of the movable groove, and the other end of the spring abuts against a top cap of the pin. The connecting structure can be quickly assembled and disassembled, subsequent maintenance and replacement are facilitated, the stress strength is improved, and shoulder collapse is avoided.

Description

Technical Field

[0001] The present application belongs to the technical field of pipe fitting processing, and specifically relates to a punch structure of a high-pressure forming die for stainless steel pipe fittings. Background Art

[0002] like Figure 1 As shown, when the existing mold punch is high-pressure formed in the stainless steel pipe, the shoulder of the punch will bear the task of sealing and bearing the impact force of the stainless steel pipe. Because the punch shoulder is affected by the thickness of the stainless steel pipe and the punch structure, the punch steel here is generally relatively weak. When the shoulder is subjected to a certain amount of impact force from the stainless steel pipe, it is easy to cause the needle to collapse, resulting in defective or scrapped products, and then the entire punch needle needs to be replaced, and the subsequent maintenance and replacement costs are high and the efficiency is low. Utility Model Content

[0003] In order to overcome the above-mentioned shortcomings in the prior art, the purpose of this application is to provide a punch structure for a high-pressure forming die for stainless steel pipe fittings, which can be quickly assembled and disassembled, facilitates subsequent maintenance and replacement, and improves the stress strength to avoid shoulder collapse.

[0004] The technical means adopted by this application to solve the above technical problems are:

[0005] The present application provides a punch structure of a high-pressure forming die for stainless steel pipe fittings, comprising a body, a needle, a pin and a spring, wherein a support portion is provided on the top of the body, and a movable groove is provided on the support portion along its radial direction; the needle is sleeved on the support portion, and the needle is provided with a positioning groove corresponding to the movable groove, and the needle is provided with a top hole connected to the positioning groove; the pin is inserted into the movable groove, and the pin has a top cap; the spring is sleeved on the pin, and one end of the spring abuts against the inner wall of the movable groove, and the other end of the spring abuts against the top cap of the pin.

[0006] Preferably, the diameter of the needle is smaller than the diameter of the body.

[0007] Preferably, the support portion has a stepped structure.

[0008] Preferably, the edge of the support portion is a rounded structure.

[0009] Preferably, the edge of the needle has a rounded edge structure.

[0010] Compared with the prior art, the punch structure of the stainless steel pipe high-pressure forming die of the present application sets the main body and the needle separately, sets a support part on the main body, sets the needle on the support part, and sets a movable groove on the support part, sets a positioning groove on the needle, and sets the pin and spring in the movable groove. When the impact force of the stainless steel pipe acts on the needle and the shoulder, it ensures that the impact force acts on the main body, improves the stability, and when the needle is damaged, it is convenient to replace, simple and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments of the present application. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0012] Figure 1 The figure is a schematic structural diagram of the punch structure of an existing high-pressure forming die for stainless steel pipe fittings.

[0013] Figure 2 This is a schematic structural diagram of the punch structure of the high-pressure forming die for stainless steel pipe fittings of this application.

[0014] Figure 3 This is a top cross-sectional view of the punch structure of the high-pressure forming die for stainless steel pipe fittings of the present application.

[0015] Marking Description:

[0016] 100. Shoulders;

[0017] 1. Main body; 1a. Support part; 1aa. Movable groove; 2. Needle; 2a. Positioning groove; 2b. Top hole; 3. Pin; 4. Spring. DETAILED DESCRIPTION

[0018] In order to more clearly understand the above-mentioned purposes, features and advantages of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the absence of conflict, the embodiments of this application and the features in the embodiments can be combined with each other. In the following description, many specific details are set forth in order to fully understand the present invention. The embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0019] It should be noted that unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which the present invention pertains. The terms used herein in the specification of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. Similar reference numerals and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further defined or explained in subsequent figures. At the same time, in the description of the present application, the terms "first", "second", etc. are used only to distinguish descriptions and are not to be understood as indicating or implying relative importance.

[0020] like Figure 1-Figure 3 As shown, this embodiment provides a punch structure of a high-pressure forming die for stainless steel pipe fittings, including a main body 1, a needle 2, a pin 3 and a spring 4. The top of the main body 1 is provided with a support portion 1a, and the support portion 1a is provided with a movable groove 1aa along its radial direction; the needle 2 is sleeved on the support portion 1a, and the needle 2 is provided with a positioning groove 2a corresponding to the movable groove 1aa, and the needle 2 is provided with a top hole 2b connected to the positioning groove 2a; the pin 3 is inserted in the movable groove 1aa, and the pin 3 has a top cap; the spring 4 is sleeved on the pin 3, one end of the spring 4 abuts against the inner wall of the movable groove 1aa, and the other end of the spring 4 abuts against the top cap of the pin 3.

[0021] It should be noted that when replacement is needed, the external ejector pin is inserted into the top hole 2b, the ejector pin presses the pin 3, and the pin 3 is pushed into the movable groove 1aa. Then the needle 2 is pulled out and the new needle 2 is inserted into the support part 1a. Due to the action of the reset spring 4, the pin 3 is pushed into the positioning groove 2a, completing the loading and unloading of the new needle 2.

[0022] In some preferred embodiments of the present invention, the diameter of the needle 2 is smaller than the diameter of the body 1. In this way, the needle 2 and the support of the stainless steel tube can be easily replaced.

[0023] In some preferred embodiments of the present invention, the support portion 1a is in a stepped structure, so as to ensure a more uniform and stable force.

[0024] In some preferred embodiments of the present invention, the edge of the support portion 1a is rounded, so that the rounded edge structure can avoid scratching the needle 2.

[0025] In some preferred embodiments of the present invention, the edge of the needle 2 is rounded to avoid scratching the operator.

[0026] Compared with the prior art, the punch structure of the stainless steel pipe high-pressure forming die of the present application sets the main body 1 and the needle 2 separately, sets a support part 1a on the main body 1, and sleeves the needle 2 on the support part 1a, and sets a movable groove 1aa on the support part 1a, and sets a positioning groove 2a on the needle 2, and sets the pin 3 and the spring 4 in the movable groove 1aa. When the impact force of the stainless steel pipe acts on the needle 2 and the shoulder 100, it is ensured that the impact force acts on the main body 1, thereby improving the stability, and when the needle 2 is damaged, it is convenient to replace, simple and quick.

[0027] The above description is only a specific embodiment of the present application and is not intended to limit the scope of protection of the present application. For those skilled in the art, the present application may have various changes and variations. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application should be included in the scope of protection of the present application. Any technician familiar with the technical field can easily think of changes or replacements within the technical scope disclosed in the present application, which should also be included in the scope of protection of the present application. Therefore, the scope of protection of the present application shall be based on the scope of protection of the claims.

[0028] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

Claims

1. A punch structure for a high-pressure forming die for stainless steel pipe fittings, characterized in that: include: A main body, wherein a support portion is provided on the top of the main body, and a movable groove is provided on the support portion along its radial direction; A needle, the needle being sleeved on the support portion, the needle being provided with a positioning groove corresponding to the movable groove, and the needle being provided with a top hole communicating with the positioning groove; A pin, the pin being inserted into the movable slot and having a top cap; A spring is sleeved on the pin, one end of the spring abuts against the inner wall of the movable groove, and the other end of the spring abuts against the top cap of the pin.

2. The punch structure of the high pressure forming die for stainless steel pipe fittings according to claim 1, characterized in that: The diameter of the needle is smaller than the diameter of the body.

3. The punch structure of the high pressure forming die for stainless steel pipe fittings according to claim 1, characterized in that: The support portion has a stepped structure.

4. The punch structure of the high pressure forming die for stainless steel pipe fittings according to claim 3, characterized in that: The edge of the support portion is a rounded structure.

5. The punch structure of the high pressure forming die for stainless steel pipe fittings according to claim 1, characterized in that: The edge of the needle is a rounded structure.

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