An ultra-plastic forming air path pressure regulating device

Abstract

The utility model relates to gas path pressure regulation and control device technical field, and disclose a kind of superplastic forming gas path pressure regulation and control device, including valve body component, the valve body component includes valve body, top cover and flexible sealing gasket, the valve body, top cover and flexible sealing gasket are installed together.The superplastic forming gas path pressure regulation and control device, gas enters valve body after, be acted on by valve core body through air pipe, set pressure is adjusted first spring pre-tightening force by thread rod, when gas path pressure changes, valve core body drives slide bar to move in guide bush, cooperate second spring, sealing element control gas path on-off, gas is discharged through another end of valve body, when pressure is greater than the set pressure of first spring, flexible sealing gasket will slightly deform under the action of pressure, and excess gas will be discharged from upper connecting piece, so that the gas pressure in the valve body is stable, the device has the advantages of high component integration, solves the problem of component dispersion in the prior art.

Description

Technical Field

[0001] This utility model relates to the technical field of gas pressure regulation devices, specifically a superplastic molding gas pressure regulation device. Background Technology

[0002] Superplastic forming is an advanced plastic processing technology that utilizes the superplasticity of materials. Its core principle is to allow materials to exhibit extremely high plasticity under specific temperatures and strain rates, enabling the one-time molding of complex components. Currently, superplastic forming equipment is beginning to be used in large quantities in China, initially primarily in the military and aerospace fields, mainly for titanium alloys.

[0003] Currently, the rail transit and automobile manufacturing industries are seeing an increase in customized products, and there is a need for rapid development of small-variety, high-volume products. Superplastic molding is beginning to be used, and its molds are more suitable than cold stamping progressive dies because they have shorter development cycles and lower verification frequencies.

[0004] Due to its high unit production cost, it is necessary to assess the balance between quantity and batch. Therefore, dynamic cost data in the production process is added to confirm the cost and conduct comparative analysis with traditional molding. The superplastic molding air circuit is a key auxiliary system of the process, which stabilizes the molding environment and ensures the accurate molding of components.

[0005] In existing technologies, the components of pressure regulating devices are scattered and independent, resulting in poor interoperability during assembly and lag in component coordination during pressure regulation. Therefore, a superplastic forming gas path pressure regulating device is proposed here. Utility Model Content

[0006] To address the shortcomings of existing technologies, this invention provides a superplastic forming gas path pressure control device, which has the advantage of high component integration and solves the problem of component dispersion in existing technologies.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a superplastic molding gas circuit pressure regulating device, comprising a valve body component, the valve body component including a valve body body, a top cover and a flexible sealing gasket, the valve body body, the top cover and the flexible sealing gasket being installed together, the flexible sealing gasket being disposed between the valve body body and the top cover, a baffle being fixed inside the valve body body, a vent pipe being installed inside the valve body body, a chamber being formed between the flexible sealing gasket and the valve body body, a valve core component being disposed inside the valve body component, a spring component being disposed above the top cover, and an on / off component being disposed below the valve body body.

[0008] Furthermore, sealing flanges are installed at both the left and right ends of the valve body.

[0009] With the above design, sealing flanges are installed at both ends of the valve body and connected to external pipelines. They are made of stainless steel, which is high-strength and corrosion-resistant. Their function is to seal the connection between the valve body and the pipeline, preventing gas leakage, ensuring the stability of gas pressure regulation, and enhancing the overall structural strength of the device to adapt to the high-pressure environment of superplastic molding.

[0010] Furthermore, the valve core component includes a valve core body, which is slidably connected to the valve body body. A lower connector is movably disposed at the upper end of the valve core body, and an upper connector is connected to the lower connector. The lower connector is disposed below the flexible sealing gasket, and the upper connector is disposed above the flexible sealing gasket.

[0011] With the above scheme, the valve core body and the valve body body achieve sealed sliding through an O-ring, made of hard alloy. The lower connecting piece is sleeved on the upper end of the valve core body and can move relative to the valve core body; it is made of brass. The upper connecting piece is connected to the lower connecting piece and is made of stainless steel. The bottom opening connection between the valve core body and the lower connecting piece has good sealing performance.

[0012] Furthermore, the spring component includes an upper housing fixed to the top surface of the top cover, and the spring component also includes a first spring with a threaded rod fixed thereon, the threaded rod being threadedly connected to the upper housing.

[0013] With the above scheme, the upper shell is welded to the top surface of the top cover and is made of cast steel. The threaded rod is screwed into the threaded hole of the upper shell. Rotating it can adjust the compression of the first spring and set the preload, providing a reference elastic force for pressure regulation.

[0014] Furthermore, an air vent is provided on the upper housing.

[0015] With the above solution, the air outlet is opened on the side wall of the upper housing and is integrally formed with the upper housing. It is connected to the inside of the upper housing. When the first spring is compressed or reset, it can balance the air pressure inside the upper housing and avoid pressure accumulation affecting the adjustment accuracy of the threaded rod.

[0016] Furthermore, the switching component includes a lower housing, which is fixed to the bottom of the valve body. A guide sleeve is fixed inside the lower housing, and a slide rod is slidably connected inside the guide sleeve. The slide rod is fixed to the valve core body, and a second spring is fixed between the valve core body and the guide sleeve.

[0017] In the above scheme, the lower housing is welded to the bottom of the valve body and is made of cast iron. The guide sleeve is welded inside the lower housing, and the slide rod is bolted to the valve core body. The surface is chrome-plated. The two ends of the second spring are fixed to the valve core body and the guide sleeve, respectively. It is made of spring steel and can assist the valve core body in resetting.

[0018] Furthermore, a sealing element is installed between the guide sleeve and the slide rod, and vent holes are provided on both the guide sleeve and the lower housing.

[0019] With the above solution, the seal is embedded in the gap between the guide sleeve and the slide rod. It is made of nitrile rubber. The vent hole penetrates through the lower housing and communicates with the outside. The seal prevents leakage of the gas medium, and the vent hole balances the air pressure inside the lower housing, ensuring the smooth sliding of the slide rod.

[0020] Compared with the prior art, the technical solution of this utility model has the following beneficial effects: This superplastic forming gas pressure control device allows gas to enter the valve body and act on the valve core body via a vent pipe. The pressure is set by adjusting the preload of the first spring through a threaded rod. When the gas pressure changes, the valve core body moves the slide rod in the guide sleeve, cooperating with the second spring and the seal to control the opening and closing of the gas path. The gas is discharged through the other end of the valve body and simultaneously enters the chamber between the flexible sealing gasket and the valve body. When the pressure exceeds the set pressure of the first spring, the flexible sealing gasket will deform slightly under the pressure, and the lower connector and the valve core body will separate. Excess gas will be discharged from the upper connector, thus stabilizing the gas pressure inside the valve body. This device has the advantage of high component integration, solving the problem of component dispersion in the prior art. Attached Figure Description

[0021] Figure 1 For the overall structure of this application Figure 1 ; Figure 2 For the overall structure of this application Figure 2 ; Figure 3 This is a cross-sectional view of the internal structure of this application; Figure 4 This is a structural diagram of the valve core component of this application; Figure 5 This is a structural diagram of the switching component in this application.

[0022] In the picture: 1. Valve body components; 101. Valve body body; 102. Top cover; 103. Flexible sealing gasket; 104. Baffle; 105. Vent pipe; 106. Sealing flange; 2. Valve core assembly; 201. Valve core body; 202. Lower connector; 203. Upper connector; 3. Spring assembly; 301. Upper housing; 302. First spring; 303. Threaded rod; 304. Vent hole; 4. On / off components; 401. Lower housing; 402. Guide sleeve; 403. Second spring; 404. Seal; 405. Vent hole; 406. Slide rod. Detailed Implementation

[0023] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0024] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The superplastic molding gas pressure regulating device in this embodiment includes a valve body component 1, which includes a valve body 101, a top cover 102, and a flexible sealing gasket 103. The valve body 101, the top cover 102, and the flexible sealing gasket 103 are installed together. The flexible sealing gasket 103 is disposed between the valve body 101 and the top cover 102. A baffle 104 is fixed inside the valve body 101. A vent pipe 105 is also installed inside the valve body 101. A cavity is formed between the flexible sealing gasket 103 and the valve body 101.

[0025] Please see Figure 1 , Figure 2 and Figure 3 The valve body 101 and top cover 102 are installed by bolts clamping a flexible sealing gasket 103. The flexible sealing gasket 103 is made of fluororubber and has a certain degree of flexibility. The baffle 104 is welded to the inside of the valve body 101, and the vent pipe 105 is sealed and connected inside the valve body 101. Both are made of stainless steel. The chamber allows gas to flow.

[0026] Sealing flanges 106 are installed at both ends of the valve body 101. These flanges, made of stainless steel, are connected to external pipelines and serve to seal the connection between the valve body 101 and the pipeline, preventing gas leakage and ensuring the stability of gas pressure regulation. They also enhance the overall structural strength of the device, making it suitable for high-pressure environments requiring superplastic molding.

[0027] Please see Figure 2 , Figure 3 and Figure 4 It also includes a valve core component 2, which is disposed inside the valve body component 1. The valve core component 2 includes a valve core body 201, which is slidably connected to the valve body body 101. A lower connector 202 is movably disposed at the upper end of the valve core body 201, and an upper connector 203 is connected to the lower connector 202. The lower connector 202 is disposed below the flexible sealing gasket 103, and the upper connector 203 is disposed above the flexible sealing gasket 103.

[0028] The valve core body 201 and the valve body body 101 achieve sealed sliding through an O-ring, both made of hard alloy. The lower connector 202 is sleeved on the upper end of the valve core body 201 and can move relative to the valve core body 201; it is made of brass. The upper connector 203 communicates with the lower connector 202 and is made of stainless steel. The bottom opening of the valve core body 201 and the lower connector 202 has good sealing performance.

[0029] Please see Figure 2 , Figure 3 and Figure 4 It also includes a spring component 3, which is disposed above the top cover 102. The spring component 3 includes an upper housing 301, which is fixed to the top surface of the top cover 102. The spring component 3 also includes a first spring 302, on which a threaded rod 303 is fixed, and the threaded rod 303 is threadedly connected to the upper housing 301.

[0030] The upper housing 301 is welded to the top surface of the top cover 102 and is made of cast steel. The threaded rod 303 is screwed into the threaded hole of the upper housing 301. Rotating it can adjust the compression of the first spring 302 and set the preload, providing a reference elastic force for pressure regulation.

[0031] An air vent 304 is provided on the upper housing 301. The air vent 304 is located on the side wall of the upper housing 301 and is integrally formed with the upper housing 301. It is connected to the interior of the upper housing 301. When the first spring 302 is compressed or reset, it can balance the air pressure inside the upper housing 301 and avoid pressure accumulation affecting the adjustment accuracy of the threaded rod 303.

[0032] Please see Figure 3 , Figure 4 and Figure 5 It also includes a switching component 4, which is located below the valve body 101. The switching component 4 includes a lower housing 401, which is fixed to the bottom of the valve body 101. A guide sleeve 402 is fixed inside the lower housing 401. A slide rod 406 is slidably connected inside the guide sleeve 402. The slide rod 406 is fixed to the valve core body 201. A second spring 403 is fixed between the valve core body 201 and the guide sleeve 402.

[0033] The lower housing 401 is welded to the bottom of the valve body 101 and is made of cast iron. The guide sleeve 402 is welded to the inside of the lower housing 401. The slide rod 406 is bolted to the valve core body 201 and is chrome-plated. The second spring 403, made of spring steel, fixes the valve core body 201 and the guide sleeve 402 at both ends and can assist the valve core body 201 in resetting.

[0034] Please see Figure 3 , Figure 4 and Figure 5A seal 404 is installed between the guide sleeve 402 and the slide rod 406. Both the guide sleeve 402 and the lower housing 401 are provided with vent holes 405. The seal 404 is embedded in the gap between the guide sleeve 402 and the slide rod 406 and is made of nitrile rubber. The vent hole 405 penetrates the lower housing 401 and communicates with the outside. The seal 404 prevents leakage of the gas medium and balances the internal air pressure of the lower housing 401, ensuring the smooth sealing and sliding of the slide rod 406.

[0035] The working principle of the above embodiment is as follows: After the gas enters the valve body 101, it acts on the valve core body 201 through the vent pipe 105. The preload of the first spring 302 is adjusted by the threaded rod 303 to set the pressure. When the gas pressure changes, the valve core body 201 drives the slide rod 406 to move in the guide sleeve 402. In conjunction with the second spring 403 and the seal 404, the gas path is controlled to open or close. When the gas pressure is greater than the preload of the second spring 403, the valve core body 201 moves downward, and the gas passes between the baffle 104 and the valve core body 201. Gas is discharged through the other end of the valve body 101, and at the same time, gas enters the chamber between the flexible sealing gasket 103 and the valve body 101. When the pressure is greater than the set pressure of the first spring 302, the flexible sealing gasket 103 will deform slightly under the pressure, and the lower connector 202 and the valve core body 201 will separate. Excess gas will be discharged from the upper connector 203, so that the gas pressure inside the valve body 101 is stable. This device has the advantage of high component integration and solves the problem of component dispersion in the prior art.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used merely 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 the element.

[0037] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A superplastic forming gas path pressure regulating device, comprising a valve body component (1), characterized in that: The valve body component (1) includes a valve body body (101), a top cover (102), and a flexible sealing gasket (103). The valve body body (101), the top cover (102), and the flexible sealing gasket (103) are installed together. The flexible sealing gasket (103) is disposed between the valve body body (101) and the top cover (102). A baffle (104) is fixed inside the valve body body (101). A vent pipe (105) is also installed inside the valve body body (101). A chamber is formed between the flexible sealing gasket (103) and the valve body body (101). It also includes a valve core component (2), which is disposed within the valve body component (1); It also includes a spring component (3), which is disposed above the top cover (102); It also includes a switching component (4), which is located below the valve body (101).

2. The superplastic forming gas path pressure regulating device according to claim 1, characterized in that: Sealing flanges (106) are installed at both the left and right ends of the valve body (101).

3. The superplastic forming gas path pressure regulating device according to claim 1, characterized in that: The valve core component (2) includes a valve core body (201), which is slidably connected to the valve body body (101). A lower connector (202) is movably disposed on the upper end of the valve core body (201), and an upper connector (203) is connected to the lower connector (202). The lower connector (202) is disposed below the flexible sealing gasket (103), and the upper connector (203) is disposed above the flexible sealing gasket (103).

4. The superplastic forming gas path pressure regulating device according to claim 1, characterized in that: The spring component (3) includes an upper housing (301) which is fixed to the top surface of the top cover (102). The spring component (3) also includes a first spring (302) on which a threaded rod (303) is fixed, and the threaded rod (303) is threadedly connected to the upper housing (301).

5. The superplastic forming gas path pressure regulating device according to claim 4, characterized in that: An air vent (304) is provided on the upper housing (301).

6. The superplastic forming gas path pressure regulating device according to claim 1, characterized in that: The switching component (4) includes a lower housing (401), which is fixed to the bottom of the valve body (101). A guide sleeve (402) is fixed inside the lower housing (401). A slide rod (406) is slidably connected inside the guide sleeve (402). The slide rod (406) is fixed to the valve core body (201). A second spring (403) is fixed between the valve core body (201) and the guide sleeve (402).

7. The superplastic forming gas path pressure regulating device according to claim 6, characterized in that: A seal (404) is installed between the guide sleeve (402) and the slide rod (406), and a vent hole (405) is provided on both the guide sleeve (402) and the lower housing (401).

Images