Forging and pressing forming die for valve body for fracturing pump

Abstract

The utility model discloses a valve body forging and pressing forming die for a fracturing pump, relates to the technical field of fracturing pump machining dies, and aims to solve the problems that when an existing valve body is forged and pressed, the tonnage of a forging press is large, excessive materials exist, and waste is caused. Comprising a mounting seat, an upper die seat and a lower die seat, the mounting base is connected with a lower die base through a fixing piece, and a lower die core is further arranged in the lower die base; the first upper die base and the second upper die base are connected on the steering mechanism in a sliding mode, a spring is further arranged between the first upper die base and the steering mechanism, the two sets of upper die bases are arranged, the upper die cores of different structures are arranged in the two sets of upper die bases, and the two sets of upper die bases are matched with the lower stamping grooves in the lower die cores, so that two-time stamping forming of the valve body can be achieved; the support legs at the bottom of the valve body are subjected to punch forming firstly, then the top of the valve body is subjected to punch forming, the forming quality is guaranteed, the situation that the support legs of the valve body are not completely punched is avoided, and forging forming of the valve body can be completed through a kiloton forging press.

Description

Technical Field

[0001] The utility model relates to the technical field of fracturing pump processing dies, in particular to a valve body forging forming die for a fracturing pump. Background Art

[0002] As a fitting of the hydraulic end of a fracturing pump, the valve body is a consumable part during the operation of the fracturing pump. Its quality directly affects whether the equipment can work continuously and the labor intensity of the on-site pump workers. This kind of valve body needs to have high strength and good toughness, and can work in high pressure, impact and acid-base environments.

[0003] Due to the special structure of the valve body, the bottom includes four sets of legs. When forging it, a large-tonnage forging press (above 1,000 tons) is required. If the pressure of the forging press is insufficient, it is easy to cause incomplete forging of the valve body legs and it cannot be used normally. Most of the existing valve body forging dies adopt one-time forging, and there is a lot of excess material at the edge of the forged valve body, causing waste.

[0004] Therefore, the present application provides a valve body forging forming die for a fracturing pump to meet the demand. Utility Model Content

[0005] The purpose of the present application is to provide a valve body forging forming die for a fracturing pump, aiming to solve the problem that the forging machine tonnage is large and there is a lot of surplus material, resulting in waste during the existing valve body forging.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a valve body forging die for a fracturing pump, comprising a mounting seat, an upper die seat and a lower die seat;

[0007] The mounting seat is connected to the lower die seat via a fixing member, and a lower die core is also provided in the lower die seat;

[0008] The upper die base comprises a first upper die base and a second upper die base, the first upper die base and the second upper die base have the same structure, the mounting base is rotatably connected to the first upper die base and the second upper die base through a steering mechanism; the first upper die base and the second upper die base are respectively provided with a first upper die core and a second upper die core;

[0009] The first upper die seat and the second upper die seat are slidably connected on the steering mechanism, and a spring is also provided between the steering mechanism. By setting two groups of upper die seats and arranging upper die cores with different structures in the two groups of upper die seats, and cooperating with the lower punching groove on the lower die core, the valve body can be stamped twice to form the support legs at the bottom of the valve body. First, the support legs at the bottom of the valve body are stamped, and then the top is stamped to ensure the forming quality and avoid incomplete stamping of the valve body support legs. In addition, the forging of the valve body can be completed using a thousand-ton forging press.

[0010] Preferably, the steering mechanism includes a turntable and a self-locking motor, the turntable is slidably connected to the upper die seat through a connecting piece, the connecting piece includes a first connecting piece and a second connecting piece, the first connecting piece and the second connecting piece have the same structure, the spring is arranged between the upper die seat and the connecting piece, the turntable is rotatably connected to the mounting seat, the turntable is driven by a self-locking motor, and the self-locking motor is connected to an external PLC controller. By arranging a steering mechanism on the mounting seat, the first upper die seat and the second lower die seat are driven to rotate by the steering mechanism, thereby realizing automatic replacement of the upper die seat, and cooperating with an external forging machine to complete the forging forming of the valve body.

[0011] Preferably, a slide groove is provided on the outer wall of the upper die seat, and the slide groove is slidably connected to the connecting piece to ensure that the mounting seat remains stable when the forging machine presses the upper die seat, thereby ensuring the corresponding relationship between the upper die seat and the lower die seat.

[0012] Preferably, a fixing groove is provided on the side wall of the lower die base, and the fixing member is connected to the lower die base via the fixing groove.

[0013] Preferably, a convex edge is further provided on the top of the lower die base, and a groove matching the size of the convex edge is further provided on the facing surfaces of the upper die base and the lower die base.

[0014] Preferably, a lower punching groove for punching the valve body is provided on the lower mold core, and the depth of the lower punching groove is greater than the height of the valve body. An upper punching groove for punching the valve body is provided at the bottom of the first upper mold core, and the bottom end surface of the second upper mold core is flush. By setting the lower punching groove greater than the height of the valve body, when the valve body is stamped, all the raw materials can be used for the forming of the valve body, thereby reducing waste material.

[0015] Preferably, the lower mold core is also provided with an exhaust hole, and the lower stamping groove is connected to the outside through the exhaust hole. The exhaust hole on the lower mold core cooperates with the two-time stamping forming of the valve body so that the supporting feet of the valve body can be completely filled with raw materials to avoid defective products.

[0016] In summary, the technical effects and advantages of the utility model are:

[0017] In the utility model, by setting two groups of upper die seats and arranging upper die cores with different structures in the two groups of upper die seats, in cooperation with the lower punching groove on the lower die core, the valve body can be stamped twice to form the support legs at the bottom of the valve body, and then the top of the valve body is stamped to ensure the forming quality and avoid the situation where the support legs of the valve body are not completely stamped. Moreover, the forging forming of the valve body can be completed using a thousand-ton forging press.

[0018] In the utility model, a steering mechanism is arranged on the mounting seat, and the steering mechanism drives the first upper die seat and the second lower die seat to rotate, thereby realizing automatic replacement of the upper die seat, and cooperating with an external forging machine to complete the forging and forming of the valve body.

[0019] In the utility model, by arranging the lower punching groove which is larger than the height dimension of the valve body, when the valve body is punched and formed, all the raw materials can be used for forming the valve body, thereby reducing the surplus materials.

[0020] In the utility model, the exhaust hole is formed on the lower die core, and the valve body is formed by two stamping processes, so that the legs of the valve body can be completely filled with raw materials, thereby avoiding the occurrence of defective products. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 The structure of the utility model is shown in FIG. Figure 1 ;

[0023] Figure 2 The structure of the utility model is shown in FIG. Figure 2 ;

[0024] Figure 3 This is a cross-sectional view of the installation of the first upper die base of the utility model;

[0025] Figure 4 It is a cross-sectional view of the mold base of the utility model;

[0026] Figure 5 It is a cross-sectional view of the mold core of the utility model;

[0027] Figure 6 It is a cross-sectional view of the second upper die base of the utility model.

[0028] In the figure: 1. mounting seat; 2. first upper die seat; 3. lower die core; 4. first upper die core; 5. lower die seat; 6. fixing member; 7. first connecting member; 8. second connecting member; 9. spring; 10. second upper die core; 11. self-locking motor; 12. second upper die seat; 13. turntable; 14. valve body; 15. lower punching groove; 16. upper punching groove; 17. exhaust hole; 21. slide groove; 22. groove; 51. fixing groove; 52. convex edge. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example

[0030] refer to Figure 1-6 The valve body forging die for a fracturing pump shown in the figure comprises a mounting seat 1, an upper die seat and a lower die seat 5;

[0031] The mounting base 1 is connected to the lower die base 5 via a fixing member 6 , and a lower die core 3 is also provided in the lower die base 5 ; a fixing groove 51 is provided on the side wall of the lower die base 5 , and the fixing member 6 is connected to the lower die base 5 via the fixing groove 51 .

[0032] In order to enable the valve body 14 to be forged using a thousand-ton forging press, two forging processes are used. The upper die seat includes a first upper die seat 2 and a second upper die seat 12. The first upper die seat 2 and the second upper die seat 12 have the same structure. The first upper die seat 2 and the second upper die seat 12 are respectively provided with a first upper die core 4 and a second upper die core 10.

[0033] In order to realize automated forging and forming, the mounting seat 1 is rotatably connected to the first upper die seat 2 and the second upper die seat 12 through a steering mechanism, and the steering mechanism is tilted between the mounting seat 1; the steering mechanism includes a turntable 13 and a self-locking motor 11, and the turntable 13 is slidably connected to the upper die seat through a connecting member, and the connecting member includes a first connecting member 7 and a second connecting member 8, and the first connecting member 7 and the second connecting member 8 are respectively connected to the first upper die seat 2 and the second upper die seat 12, and the first connecting member 7 and the second connecting member 8 have the same structure, and the spring 9 is arranged between the upper die seat and the connecting member, and a sliding groove 21 is opened on the outer wall of the upper die seat, and the sliding groove 21 is slidably connected to the connecting member.

[0034] The turntable 13 is rotatably connected to the mounting base 1 via a rotating shaft. The rotating shaft connected to the turntable 13 is connected to the output end of the self-locking motor 11 via a coupling. The self-locking motor 11 is connected to an external PLC controller.

[0035] The first upper die seat 2 and the second upper die seat 12 are slidably connected on the steering mechanism, and a spring 9 is also provided between the steering mechanism. After the forging machine forges the first upper die seat 2 and the second upper die seat 12 once, they are reset under the elastic force of the spring 9, so that when the upper die seat is rotated electrically by the self-locking motor 11, interference between the upper die seat and the lower die seat 5 can be avoided.

[0036] In order to keep the upper die seat and the lower die seat 5 in corresponding position during forging, a convex edge 52 is provided on the top of the lower die seat 5 , and a groove 22 matching the size of the convex edge 52 is provided on the facing surfaces of the upper die seat and the lower die seat 5 .

[0037] The lower die core 3 is provided with a lower punching groove 15 for punching the valve body 14, and the depth of the lower punching groove 15 is greater than the height of the valve body 14. The bottom of the first upper die core 4 is provided with an upper punching groove 16 for punching the valve body 14. The bottom end surface of the second upper die core 10 is flush. During forging, the outer diameter of the second upper die core 10 is the same as the inner diameter of the lower punching groove 15. The lower die core 3 is also provided with an exhaust hole 17, and the lower punching groove 15 is connected to the outside through the exhaust hole 17. For the first forging of the raw material, the raw material can only be filled into the supporting feet of the valve body 14, which can effectively solve the problem of incomplete filling at the supporting feet.

[0038] The practical working principle of the present invention is as follows: when in use, the mold is moved to the forging press, and the raw material to be stamped is placed in the lower stamping groove 15 of the lower die core 3. At this time, the second upper die seat 12 and the second upper die core 10 correspond to the positions of the lower die seat 5 and the lower die core 3. The forging press is controlled by the PLC controller, and the forging press presses the second upper die seat 12 to move upward, and at the same time drives the second upper die core 10 to move close to the lower die core 3. The spring 9 is compressed, and the second upper die seat 12 is slidably connected with the second connecting piece 8. The groove 22 on the second upper die seat 12 is connected with the convex edge 52 on the lower die seat 5 to ensure that the position between the upper die and the lower die corresponds. Driven by the forging press, the second upper die core 10 performs the first forging on the raw material in the lower stamping groove 15. Since the outer diameter of the second upper die core 10 is the same as the outer diameter of the lower stamping groove 15, the raw material can only move to the bottom of the lower stamping groove 15 under the pressure of stamping, which is The legs of the valve body 14 are filled, and the exhaust holes 17 can ensure that the raw material is smoothly filled into the legs, completing the first forging and forming; the self-locking motor 11 is controlled to work and rotate by the PLC controller, and the turntable 13 is driven by the self-locking motor 11 to rotate on the mounting base 1, thereby driving the first upper die seat 2 and the second upper die seat 12 to rotate, and the electric turntable 13 of the self-locking motor 11 rotates 180 degrees to make the first upper die seat 2 and the second upper die seat 12 exchange positions. At this time, the first upper die seat 2 and the first upper die core 4 correspond to the positions of the lower die seat 5 and the lower die core 3, and the forging machine is controlled to continue working, driving the first upper die seat 2 and the first upper die core 4 to perform secondary forging on the raw material. During the secondary forging process, part of the raw material will be filled in the upward stamping groove 16, and the other part will continue to fill the legs of the valve body 14 to avoid the problem of incomplete filling of the legs. After the secondary forging is completed, the forging of the valve body 14 is completed.

[0039] The electromechanical connection involved in the present utility model is a common means used by those skilled in the art, and technical inspiration can be obtained through a limited number of tests, which belongs to common knowledge.

[0040] Components not described in detail herein are prior art.

[0041] Finally, it should be noted that the above is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A valve body forging die for a fracturing pump, characterized in that: It comprises a mounting base (1), an upper die base and a lower die base (5); The mounting seat (1) is connected to the lower die seat (5) via a fixing member (6), and a lower die core (3) is also provided in the lower die seat (5); The upper die seat comprises a first upper die seat (2) and a second upper die seat (12); the first upper die seat (2) and the second upper die seat (12) have the same structure; the mounting seat (1) is rotatably connected to the first upper die seat (2) and the second upper die seat (12) via a steering mechanism; the first upper die seat (2) and the second upper die seat (12) are respectively provided with a first upper die core (4) and a second upper die core (10); The first upper die seat (2) and the second upper die seat (12) are slidably connected on the steering mechanism, and a spring (9) is provided between the first upper die seat and the steering mechanism.

2. The valve body forging die for a fracturing pump according to claim 1, characterized in that: The steering mechanism comprises a turntable (13) and a self-locking motor (11); the turntable (13) is slidably connected to the upper die seat via a connecting member; the connecting member comprises a first connecting member (7) and a second connecting member (8); the first connecting member (7) and the second connecting member (8) have the same structure; the spring (9) is arranged between the upper die seat and the connecting member; the turntable (13) is rotatably connected to the mounting seat (1); the turntable (13) is driven by the self-locking motor (11); and the self-locking motor (11) is connected to an external PLC controller.

3. The valve body forging die for a fracturing pump according to claim 2, characterized in that: A sliding groove (21) is provided on the outer wall of the upper die seat, and the sliding groove (21) is slidably connected to the connecting piece.

4. The valve body forging die for a fracturing pump according to claim 1, characterized in that: A fixing groove (51) is provided on the side wall of the lower die base (5), and the fixing member (6) is connected to the lower die base (5) via the fixing groove (51).

5. The valve body forging die for a fracturing pump according to claim 1, characterized in that: The top of the lower die seat (5) is also provided with a convex edge (52), and the facing surfaces of the upper die seat and the lower die seat (5) are also provided with a groove (22) matching the size of the convex edge (52).

6. The valve body forging die for a fracturing pump according to claim 1, characterized in that: The lower die core (3) is provided with a lower punching groove (15) for punching the valve body (14), the depth dimension of the lower punching groove (15) being greater than the height dimension of the valve body (14), the bottom of the first upper die core (4) is provided with an upper punching groove (16) for punching the valve body (14), and the bottom end surface of the second upper die core (10) is flush.

7. The valve body forging die for a fracturing pump according to claim 6, characterized in that: The lower die core (3) is also provided with an exhaust hole (17), and the lower punching groove (15) is connected to the outside through the exhaust hole (17).

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