An asymmetric four-way valve body is forged into a shape

Abstract

The application relates to the technical field of metal forging forming, and discloses an asymmetric four-way valve body forging forming die, which comprises a lower mounting plate and an upper mounting plate, a lower die is fixedly connected to the upper end of the lower mounting plate through bolts, a discharging cavity is arranged in the lower die, a shunt conical column is arranged at the eccentric bottom end in the discharging cavity, four shunt grooves arranged in a rectangular array are arranged on the outer wall of the discharging cavity, an upper die is fixedly connected to the bottom end of the upper mounting plate, a pushing column is fixedly connected to the upper die, and a conical groove is fixedly connected to the bottom end of the pushing column. The asymmetric four-way valve body forging forming die can forge metal materials into four asymmetric branch pipes required by a four-way valve body through a forging forming process. The design of the discharging cavity, the shunt conical column and the shunt grooves enables metal materials to asymmetrically flow according to requirements in the forging process, the materials required by the four asymmetric shunt branch pipes are met, the distribution of the materials is optimized, and material waste is reduced.

Description

Technical Field

[0001] This application relates to the field of metal forging technology, specifically to an asymmetric four-way valve body forging mold. Background Technology

[0002] Metal forging technology is now widely used in the manufacturing of various mechanical parts, especially valve body parts, which are usually forged to ensure their mechanical properties and sealing performance. As industrial equipment develops towards high pressure and high temperature conditions, the requirements for the structural strength and flow channel precision of four-way valve bodies are increasing.

[0003] However, most of the branch pipes of existing four-way valve bodies are made by splicing two semi-circular pipes. The quality of the weld directly affects the overall strength and sealing of the valve body. The weld may have defects such as porosity, slag inclusion, and cracks. These defects may become the starting point of valve body failure under high pressure and high temperature conditions, leading to leakage or rupture. Utility Model Content

[0004] To address the shortcomings of existing technologies, this application provides an asymmetric four-way valve body forging mold, which has advantages such as improved forming accuracy. It solves the problem that most existing four-way valve bodies use two semi-circular pipes spliced ​​together for the branch pipes, and the quality of the weld directly affects the overall strength and sealing of the valve body. The weld may have defects such as porosity, slag inclusion, and cracks. These defects may become the starting point for valve body failure under high pressure and high temperature conditions, leading to leakage or rupture.

[0005] To achieve the above objectives, this application provides the following technical solution: an asymmetric four-way valve body forging mold, comprising a lower mounting plate and an upper mounting plate, wherein a lower mold is fixedly connected to the upper end of the lower mounting plate by bolts, the lower mold has four forming cavities arranged in a rectangular array inside, a discharge cavity is provided inside the lower mold, a flow-diverting cone is eccentrically arranged at the bottom end of the discharge cavity, four flow-diverting grooves are arranged in a rectangular array on the outer wall of the discharge cavity, four positioning holes are arranged in a rectangular array inside the lower mold, an upper mold is fixedly connected to the bottom end of the upper mounting plate, a pusher column is fixedly connected to the bottom end of the upper mold, a conical groove is fixedly connected to the bottom end of the pusher column, four flow-diverting strips are fixedly connected to the outer wall of the pusher column in a ring array, four forming columns are fixedly connected to the bottom end of the upper mold in a rectangular array, and four positioning rods are fixedly connected to the bottom end of the upper mold in a rectangular array.

[0006] Through the above scheme and forging process, metal material can be forged into four asymmetrical branch pipes required for a four-way valve body in one go. The asymmetrical forming capability meets the needs of different branch pipe sizes or shapes for specific application scenarios, improving the adaptability and functionality of the product. The forming cavity and forming column inside the mold cooperate to determine the shape and size of the branch pipe. Through the cooperation of the positioning hole and positioning rod, the mold can achieve precise positioning during the mold closing process, ensuring accurate alignment of the upper and lower molds. This reduces errors in the forming process. The design of the discharge cavity, flow divider cone and flow divider groove allows the metal material to flow asymmetrically according to the requirements during the forging process, meeting the material requirements of the four asymmetrical flow divider branch pipes, optimizing the material distribution, reducing material waste, improving material utilization, and reducing production costs. This device has the advantage of integrated forging of asymmetrical four-way valve body branch pipes of different shapes and sizes.

[0007] Furthermore, four positioning cylinders arranged in a rectangular array are fixedly connected to the upper end of the lower mounting plate, and four sliding rods arranged in a rectangular array are fixedly connected to the bottom end of the upper mounting plate.

[0008] The above solution restricts the relative movement of the upper and lower molds in the horizontal direction by the cooperation of the sliding rod and the positioning cylinder, ensuring the precise alignment of the upper and lower molds when the mold is closed, avoiding mold closing deviations caused by manual operation or equipment vibration, and improving molding accuracy.

[0009] Furthermore, the bottom end of the lower mounting plate is fixedly connected to two support plates arranged in a mirror image. The bottom ends of the two support plates are fixedly connected to a base plate. The upper end of the base plate is fixedly connected to a hydraulic rod. The telescopic end of the hydraulic rod is fixedly connected to a lifting plate. The upper end of the lifting plate is fixedly connected to four top rods arranged in a rectangular array. The interior of the lower mounting plate has four through holes arranged in a rectangular array.

[0010] Through the above scheme, the rigid connection between the support plate and the base plate disperses the impact force generated during the forging process to the entire support structure, reducing local stress concentration. The hydraulic rod drives the lifting plate and the ejector rod to achieve automated demolding. The extension and retraction of the hydraulic rod can push out the ejector rod, and push the formed branch pipe out of the forming cavity for easy material removal.

[0011] Furthermore, the pusher column is slidably disposed inside the discharge chamber, the diversion cone column is slidably disposed inside the conical groove, and the four diversion strips are all slidably disposed inside the diversion groove.

[0012] With the above scheme, the cone angle of the diversion cone is matched with the four symmetrically arranged forming cavities. The area with a larger cone angle corresponds to the forming cavity with a larger diameter, and the area with a smaller angle corresponds to the forming cavity with a smaller diameter. The metal is forced to be distributed proportionally by the cone geometry. When the diversion cone distributes the metal proportionally to the four branch cavities, the diversion strip can slide synchronously to the preset position to form a precise branch cavity shape.

[0013] Furthermore, the four molding columns are slidably disposed inside the molding cavity.

[0014] With the above scheme, four forming columns are slidably set inside the forming cavity, and the space required for forming the branch pipe is formed by the cooperation of the forming columns and the forming cavity.

[0015] Furthermore, all four positioning rods are slidably disposed inside the positioning holes.

[0016] Through the above scheme, the sliding fit between the positioning rod and the positioning hole achieves the alignment of the upper and lower molds. In the asymmetrical branch pipe forming of the four-way valve body, the positioning rod can prevent the mold from shifting laterally due to vibration or manual operation, thus ensuring the forming accuracy of the branch pipe.

[0017] Furthermore, all four slide rods are slidably disposed inside the positioning cylinder.

[0018] With the above scheme, the four sliding rods slide inside the positioning cylinder to form a limit, which limits the four corner points of the lower mounting plate and the upper mounting plate respectively, ensuring that the upper mounting plate and the lower mounting plate will not undergo lateral displacement during use.

[0019] Furthermore, all four push rods are slidably disposed inside the through hole, and the upper ends of the four push rods are at the same horizontal plane as the bottom end of the molding cavity.

[0020] With the above scheme, the upper end of the push rod is horizontally aligned with the bottom end of the forming cavity, ensuring that the blank is subjected to uniform force at the bottom during the forging process, avoiding forming defects caused by uneven support. After forging, the push rod slides through the through hole and pushes the formed part upward, causing it to detach from the forming cavity.

[0021] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0022] This asymmetric four-way valve body forging die, through a forging process, can forge metal material into four asymmetric branch pipes required for a four-way valve body in one go. The asymmetric forming capability meets the needs of different branch pipe sizes or shapes in specific application scenarios, improving the adaptability and functionality of the product. The forming cavity and forming column inside the die cooperate to determine the shape and size of the branch pipes. Through the cooperation of the positioning hole and positioning rod, the die can achieve precise positioning during the die closing process, ensuring accurate alignment of the upper and lower dies, which reduces errors in the forming process. The design of the discharge cavity, flow divider cone, and flow divider groove allows the metal material to flow asymmetrically according to requirements during the forging process, meeting the material requirements of the four asymmetric flow divider branch pipes, optimizing material distribution, reducing material waste, improving material utilization, and lowering production costs. This device has the advantage of integrated forging of asymmetric four-way valve body branch pipes of different shapes and sizes. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this application;

[0024] Figure 2 This is a schematic diagram of the lower mold structure of the present application.

[0025] Figure 3 This is a schematic diagram of the upper mold structure of this application;

[0026] Figure 4 This is a schematic diagram of the material pushing structure of this application;

[0027] Figure 5 This is a cross-sectional view of the overall structure of this application.

[0028] In the picture:

[0029] 1. Lower mounting plate; 2. Lower mold; 3. Forming cavity; 4. Discharge cavity; 5. Diverting cone; 6. Diverting groove; 7. Positioning hole; 8. Upper mounting plate; 9. Upper mold; 10. Pusher column; 11. Conical groove; 12. Diverting strip; 13. Forming column; 14. Positioning rod; 15. Positioning cylinder; 16. Sliding rod; 17. Support plate; 18. Base plate; 19. Hydraulic rod; 20. Lifting plate; 21. Push rod; 22. Through hole. Detailed Implementation

[0030] 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.

[0031] Please see Figure 1 , Figure 2 and Figure 3 This embodiment describes an asymmetric four-way valve body forging mold, including a lower mounting plate 1 and an upper mounting plate 8. A lower mold 2 is bolted to the upper end of the lower mounting plate 1. The lower mold 2 has four forming cavities 3 arranged in a rectangular array inside, and a discharge cavity 4 inside. A flow-diverting cone 5 is eccentrically positioned at the bottom of the discharge cavity 4. Four flow-diverting grooves 6 arranged in a rectangular array are formed on the outer wall of the discharge cavity 4. Four positioning holes 7 arranged in a rectangular array are formed inside the lower mold 2. An upper mold 9 is fixedly connected to the bottom end of the upper mounting plate 8, and a pusher column 10 is fixedly connected to the bottom end of the pusher column 10. A conical groove 11 is fixedly connected to the bottom end of the pusher column 10. The design of the discharge cavity 4, the flow-diverting cone 5, and the flow-diverting grooves 6 allows the metal material to... During the process, the material can flow asymmetrically according to demand, satisfying the material requirements of four asymmetrical branch pipes, optimizing material distribution, reducing material waste, improving material utilization, and reducing production costs. The outer wall of the push column 10 is fixedly connected to four branch strips 12 arranged in a ring array, and the bottom end of the upper mold 9 is fixedly connected to four forming columns 13 arranged in a rectangular array. The forming cavity 3 inside the mold cooperates with the forming columns 13 to determine the shape and size of the branch pipe. The bottom end of the upper mold 9 is fixedly connected to four positioning rods 14 arranged in a rectangular array. Through the cooperation of the positioning hole 7 and the positioning rod 14, the mold can achieve precise positioning during the mold closing process, ensuring accurate alignment of the upper and lower molds 2, which reduces errors in the forming process.

[0032] Please see Figure 2 , Figure 3 and Figure 4 The lower mounting plate 1 has four positioning cylinders 15 arranged in a rectangular array fixedly connected to its upper end. The upper mounting plate 8 has four sliding rods 16 arranged in a rectangular array fixedly connected to its bottom end. The cooperation between the sliding rods 16 and the positioning cylinders 15 restricts the relative movement of the upper and lower molds 2 in the horizontal direction, ensuring precise alignment of the upper and lower molds 2 during mold closing. This avoids mold closing deviations caused by manual operation or equipment vibration, improving molding accuracy. The lower mounting plate 1 has two support plates 17 arranged in a mirror image fixedly connected to its bottom end. A base plate 18 is fixedly connected to the bottom end of the two support plates 17, and a [missing information - likely a specific type of support plate 18] is fixedly connected to the upper end of the base plate 18. The hydraulic rod 19 has a lifting plate 20 fixedly connected to its telescopic end. Four top rods 21 arranged in a rectangular array are fixedly connected to the upper end of the lifting plate 20. Four through holes 22 arranged in a rectangular array are provided through the interior of the lower mounting plate 1. The rigid connection between the support plate 17 and the base plate 18 disperses the impact force generated during forging to the entire support structure, reducing local stress concentration. The lifting plate 20 and top rods 21 are driven by the hydraulic rod 19 to achieve automated demolding. The telescopic movement of the hydraulic rod 19 can push out the top rods 21, pushing the formed branch pipe out of the forming cavity 3 for easy material removal.

[0033] Please see Figure 2 , Figure 3 and Figure 5 The pusher column 10 is slidably disposed inside the discharge chamber 4, the diversion cone column 5 is slidably disposed inside the conical groove 11, and the four diversion strips 12 are all slidably disposed inside the diversion groove 6. The cone angle of the diversion cone column 5 matches the four symmetrically arranged forming cavities 3. The area with a larger cone angle corresponds to the forming cavity 3 with a larger diameter, and the area with a smaller angle corresponds to the forming cavity 3 with a smaller diameter. The metal is forced to be distributed proportionally by the geometric shape of the cone surface. When the diversion cone column 5 distributes the metal proportionally to the four branch cavities, the diversion strips 12 can slide synchronously to the preset position to form a precise branch cavity shape. The four forming columns 13 are slidably disposed inside the forming cavity 3. The four forming columns 13 are slidably disposed inside the forming cavity 3. The cooperation between the forming columns 13 and the forming cavity 3 forms the space required for the forming of the diversion branch pipe. The four positioning rods 14 are all slidably disposed inside the positioning holes 7. The sliding of the positioning rods 14 and the positioning holes 7 To achieve alignment between the upper mold 9 and the lower mold 2, in the asymmetrical branch pipe forming of the four-way valve body, the positioning rod 14 can prevent the mold from shifting laterally due to vibration or manual operation, ensuring the forming accuracy of the branch pipe. The four sliding rods 16 are all slidably set inside the positioning cylinder 15. The four sliding rods 16 slide inside the positioning cylinder 15 to form a limit, which limits the four corner points of the lower mounting plate 1 and the upper mounting plate 8 respectively, ensuring that the upper mounting plate 8 and the lower mounting plate 1 will not shift laterally during use. The four push rods 21 are all slidably set inside the through hole 22. The upper end of the four push rods 21 is at the same horizontal plane as the bottom end of the forming cavity 3. The upper end of the push rod 21 is horizontally aligned with the bottom end of the forming cavity 3, ensuring that the bottom of the billet is evenly stressed during the forging process, avoiding forming defects caused by uneven support. After forging, the push rods 21 slide through the through hole 22 and push the formed part upward, causing it to detach from the forming cavity 3.

[0034] In this embodiment, the asymmetric four-way valve body forging mold can forge metal material into four asymmetric branch pipes required for the four-way valve body in one go through the forging process. The asymmetric forming capability meets the needs of different branch pipe sizes or shapes in specific application scenarios, improving the adaptability and functionality of the product. The forming cavity 3 and forming column 13 inside the mold cooperate to determine the shape and size of the branch pipe. Through the cooperation of positioning hole 7 and positioning rod 14, the mold can achieve precise positioning during the mold closing process, ensuring accurate alignment of the upper and lower molds 2, which reduces errors in the forming process. The design of the discharge cavity 4, the diversion cone 5 and the diversion groove 6 allows the metal material to flow asymmetrically according to the requirements during the forging process, meeting the material requirements of the four asymmetric diversion branch pipes, optimizing the material distribution, reducing material waste, improving material utilization, and reducing production costs. This device has the advantage of integrated forging of asymmetric four-way valve body branch pipes of different shapes and sizes.

[0035] The working principle of the above embodiments is as follows:

[0036] First, the metal billet is heated and placed in the discharge cavity 4 of the lower mold 2. When the mold is closed, the upper mounting plate 8 drives the upper mold 9 to press down. The pusher column 10 is inserted into the discharge cavity 4 and cooperates with the eccentrically set diversion cone column 5. The conical groove 11 contacts the conical surface of the diversion cone column 5, forcing the metal material to flow into the four diversion grooves 6 according to a preset ratio. The diversion strip 12 slides into the diversion groove 6 synchronously with the pusher column 10, guiding the metal to fill the four asymmetrically arranged forming cavities 3 in a directional manner. During this process, the positioning rod 14 and the positioning hole 7, and the sliding rod 16 and the positioning cylinder 1 The dual positioning system of 5 ensures precise alignment of the upper and lower molds 2. The cooperation between the forming column 13 and the forming cavity 3 forms the branch pipe cavity. Under the action of forging pressure, the metal is distributed differently along the variable angle cone surface of the diversion cone column 5. The larger cone angle area delivers more material to the branch pipe cavity with a larger diameter, while the smaller cone angle area matches the needs of the smaller branch pipe. After forging is completed, the hydraulic rod 19 drives the lifting plate 20 to rise, and the ejector rod 21 pushes the formed part out of the forming cavity 3 through the through hole 22 to achieve automatic demolding. Four branch pipes of different sizes are obtained in one molding process.

[0037] 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.

[0038] 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. An asymmetric four-way valve body forging mold, comprising a lower mounting plate (1) and an upper mounting plate (8), characterized in that: The lower mounting plate (1) is fixedly connected to the upper end of the lower mold (2) by bolts. The lower mold (2) has four forming cavities (3) arranged in a rectangular array inside. The lower mold (2) has a discharge cavity (4) inside. The discharge cavity (4) has a diversion cone (5) eccentrically arranged at the bottom end. The discharge cavity (4) has four diversion grooves (6) arranged in a rectangular array on the outer wall. The lower mold (2) has four positioning holes (7) arranged in a rectangular array inside. The upper mounting plate (8) is fixedly connected to the bottom end of the upper mold (9). The upper mold (9) has a pusher column (10) fixedly connected to the bottom end. The pusher column (10) has a conical groove (11) fixedly connected to the bottom end. The pusher column (10) has four diversion strips (12) arranged in a ring array fixedly connected to the outer wall. The upper mold (9) has four forming columns (13) arranged in a rectangular array fixedly connected to the bottom end. The upper mold (9) has four positioning rods (14) arranged in a rectangular array fixedly connected to the bottom end.

2. The asymmetric four-way valve body forging mold according to claim 1, characterized in that: The upper end of the lower mounting plate (1) is fixedly connected to four positioning cylinders (15) arranged in a rectangular array, and the bottom end of the upper mounting plate (8) is fixedly connected to four sliding rods (16) arranged in a rectangular array.

3. The asymmetric four-way valve body forging mold according to claim 1, characterized in that: The bottom of the lower mounting plate (1) is fixedly connected to two support plates (17) arranged in a mirror distribution. The bottom of the two support plates (17) is fixedly connected to a base plate (18). The upper end of the base plate (18) is fixedly connected to a hydraulic rod (19). The telescopic end of the hydraulic rod (19) is fixedly connected to a lifting plate (20). The upper end of the lifting plate (20) is fixedly connected to four top rods (21) arranged in a rectangular array. The interior of the lower mounting plate (1) has four through holes (22) arranged in a rectangular array.

4. The asymmetric four-way valve body forging mold according to claim 1, characterized in that: The pusher column (10) is slidably disposed inside the discharge chamber (4), the diversion cone column (5) is slidably disposed inside the cone groove (11), and the four diversion strips (12) are all slidably disposed inside the diversion groove (6).

5. The asymmetric four-way valve body forging die according to claim 1, characterized in that: The four molding columns (13) are slidably disposed inside the molding cavity (3).

6. The asymmetric four-way valve body forging mold according to claim 1, characterized in that: All four positioning rods (14) are slidably disposed inside the positioning holes (7).

7. The asymmetric four-way valve body forging mold according to claim 2, characterized in that: All four slide rods (16) are slidably disposed inside the positioning cylinder (15).

8. The asymmetric four-way valve body forging mold according to claim 3, characterized in that: All four push rods (21) are slidably disposed inside the through hole (22), and the upper ends of the four push rods (21) are at the same level as the bottom end of the forming cavity (3).

Images