Ball valve wheel turning tool

Abstract

The utility model discloses a ball valve car round tool relates to ball valve production equipment field, and this ball valve car round tool, including the locating rod, the cross expansion groove is set up in locating rod one end, and the locating jack -hole is set up in the side of locating rod and is located cross expansion groove end part, and the expansion pin is arranged in the inside of locating jack -hole, and the cross expansion groove is set up in one end of existing locating rod, and the integral locating rod is divided into four parts, and then the locating jack -hole that is set up in the side of locating rod is combined expansion pin adjustment cooperation, and the cross expansion groove opening degree adjustment realizes the adjustment of the diameter of locating rod, and in addition, the two locating rings that are set up on the side of locating rod correspond and cooperate the cross expansion groove of adjustable opening degree, can better resist the positioning of the valve core that is sleeved on its side.

Description

Technical Field

[0001] This utility model proposes a ball valve turning tool, which relates to the field of ball valve production equipment, and specifically relates to a ball valve turning tool. Background Technology

[0002] A ball valve is a type of valve that controls fluid flow by rotating a ball. It consists of a valve body, opening and closing components, a sealing and support system, and an operating mechanism. The valve core, with its ball structure, works in conjunction with the valve cavity to seal the conveyed medium. A through hole is machined through the side of the valve core for the flow of the medium.

[0003] In existing ball valves, the valve core turning process usually occurs after the through hole is machined. The turning fixture is positioned by machining the through hole and then machining the valve core surface. It is usually a metal rod structure with a gradually changing diameter. The positioning is achieved by the fixture pressing against the through hole of the valve core. This type of fixture has the problem of increasing the diameter of the through hole. In addition, there is the problem of relative sliding between the valve core and the fixture during the machining process, which affects the machining efficiency.

[0004] Therefore, those skilled in the art propose a ball valve turning tooling, which improves upon existing tooling to achieve better positioning of the valve core. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this utility model provides a ball valve turning tooling. By creating a cross expansion groove, the positioning rod has an expansion adjustment effect. In addition, combined with positioning rings arranged opposite each other on the side of the positioning rod and expansion pins that expand the opening of the cross expansion groove through positioning holes, after the valve core is sleeved on the outside of the two positioning rings, the opening of the cross expansion groove is further expanded through the positioning holes to achieve tight positioning of the two positioning rings against the inner wall of the valve core through hole.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a ball valve turning tool, including a positioning rod, one end of which is fixed to the turning equipment, and the valve core is sleeved on the other end of the positioning rod through a through hole on its side for tight positioning, and then the surface is processed by the turning equipment.

[0007] One end of the positioning rod has a cross-shaped expansion groove along its diameter. The cross-shaped expansion groove divides the positioning rod into four independent rods with one end fixed along its diameter. The diameter of the four independent rods forming the whole can be expanded by adjusting the opening of the cross-shaped expansion groove, which makes it easier to clamp and position the valve core according to the through hole on the side of the valve core.

[0008] The positioning rod has a positioning hole along the diameter direction on its side. An expansion pin is inserted into the inner side of the positioning hole. The expansion pin cooperates with the positioning hole to expand the opening of the cross expansion groove. The positioning rod is pressed and positioned against the valve core hole wall from the inside of the valve core.

[0009] The positioning hole is located at the end of the cross-shaped expansion groove. The opening degree of the corresponding cross-shaped expansion groove is adjusted by the expansion pin pushing against the inner wall of the positioning hole.

[0010] Preferably, a positioning ring is fixed to the side of the positioning rod. The positioning ring has a conical structure, and the two positioning rings form a pair of fixing structures with a diameter that gradually increases from the middle to both sides.

[0011] The two positioning rings with tapered structures and smaller diameters, positioned opposite each other, together form a clamping structure against the valve core through hole. When the valve core moves along the positioning rod through the through hole, it is blocked and positioned by a positioning ring at one end. Then, the opening of the cross expansion groove away from the positioning ring is expanded by the expansion pin in conjunction with the positioning insertion hole, thereby achieving the clamping and positioning of the two opposing positioning rings against the inner wall of the valve core through hole.

[0012] Preferably, an end block is fixed to the side of the positioning rod and at the end of the cross expansion groove. The positioning hole is located between the positioning ring and the end block. The end block can abut against the expansion pin inserted into the positioning hole to ensure a stable positioning effect.

[0013] Preferably, a tapered block is fixed on the side of the end block away from the positioning ring. The tapered block is coaxially fixed with the positioning rod. The tapered block can guide the valve core according to the through hole, so that the valve core can pass through the position of the end block more smoothly and avoid the valve core being obstructed by the end block and the positioning ring.

[0014] Preferably, a cavity is formed on the inner side of the end of the positioning rod where the cross expansion groove is formed, and the formation of the cavity makes the positioning rod divided by the cross expansion groove easier to adjust.

[0015] A fixing block is fixed to the bottom wall of the cavity. The expansion pin passes through the positioning hole and is threadedly connected to the fixing block. The expansion pin needs to satisfy the stable and gradually increasing squeezing and pushing effect on the positioning hole. At the same time, the squeezing and pushing effect on the positioning hole can be gradually increased according to the advance distance of the expansion pin.

[0016] This utility model discloses a ball valve turning tool, which has the following beneficial effects: This ball valve turning tooling has a cross expansion groove at one end of the existing positioning rod, dividing the integrated positioning rod into four parts. Combined with the positioning holes on the side of the positioning rod and the expansion pin adjustment, the diameter of the positioning rod can be adjusted by adjusting the opening of the cross expansion groove. In addition, the two positioning rings on the side of the positioning rod, together with the adjustable opening of the cross expansion groove, can better clamp and position the valve core sleeved on its side. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a rotated side view of the overall structure of this utility model; Figure 3 This is a cross-sectional view of the overall structure of this utility model.

[0019] In the diagram: 1. Positioning rod; 2. Cross expansion groove; 3. Positioning insertion hole; 4. Expansion pin; 5. Positioning ring; 6. End block; 7. Conical block; 8. Cavity; 9. Fixing block. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0021] This utility model embodiment discloses a ball valve machining tooling; According to the appendix Figure 1-3 As shown, a cross expansion groove 2 is opened at one end of the positioning rod 1 of the existing valve core turning tool. The cross expansion groove 2 extends along the axial direction of the positioning rod 1, dividing the integral positioning rod 1 into four uniform rods. A cavity 8 structure is also opened on the inner side of the end of the positioning rod 1, so that the diameter of one end of the positioning rod 1 can be adaptively adjusted by the opening of the cross expansion groove 2. The cavity 8 can make the positioning rod 1 easier to plastically adjust.

[0022] A positioning hole 3 is provided on the side of the positioning rod 1 and at the end of the cross expansion groove 2. The positioning hole 3 is set along the diameter direction of the positioning rod 1. A fixing block 9 is provided on the inner bottom wall of the cavity 8. An expansion pin 4 is set through the positioning hole 3 via the fixing block 9. As the expansion pin 4 is adjusted through the threaded connection with the fixing block 9, the expansion pin 4 squeezes the inner wall of the positioning hole 3, thereby expanding the opening relative to the cross expansion groove 2, and thus adjusting its diameter from one end of the positioning rod 1.

[0023] The valve core is fitted onto the side of the positioning rod 1 through a through hole on its side. In order to ensure the positioning rod 1 can position the valve core, a positioning ring 5 is fixedly installed on the side of the positioning rod 1. The positioning ring 5 has a conical structure, and two positioning rings 5 ​​are arranged in a group facing each other. The ends of the two positioning rings 5 ​​with smaller diameters are close to each other, and the diameter of one positioning ring 5 at the end of the positioning rod 1 is slightly larger than that of the other, so that the positioning rod 1 can block the valve core through one of the positioning rings 5 ​​at the end.

[0024] After the valve core is intercepted by the positioning ring 5, the expansion pin 4 is installed and the advance distance is adjusted by the positioning hole 3 located away from the positioning ring 5. This causes the opening of the cross expansion groove 2 to increase from the end of the positioning ring 5 with the smaller diameter, forming a trapezoidal groove structure. In other words, the valve core is positioned by the two conical positioning rings 5.

[0025] An end block 6 is fixedly installed on the side of the positioning rod 1 and on the side of the positioning ring 5 with a smaller diameter. A tapered block 7 is fixed on the side of the end block 6 away from the positioning ring 5. The tapered block 7 facilitates the movement of the valve core from one end of the end block 6 to the end of the positioning ring 5. The end block 6 can also strengthen the installation of the expansion pin 4 in the positioning hole 3.

[0026] This ball valve turning tooling has a cross expansion groove 2 opened at one end of the existing positioning rod 1, dividing the integrated positioning rod 1 into four parts. Combined with the positioning insertion hole 3 opened on the side of the positioning rod 1 and the expansion pin 4 for adjustment, the opening degree of the cross expansion groove 2 can be adjusted to adjust the diameter of the positioning rod 1. In addition, the two positioning rings 5 ​​set on the side of the positioning rod 1, together with the adjustable opening degree of the cross expansion groove 2, can better tighten and position the valve core sleeved on its side.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A ball valve truing tool comprising a positioning rod (1) which is positioned by abutting against a through hole in the side of the valve core, characterized in that: The positioning rod (1) has a cross expansion groove (2) at one end along the diameter direction of the positioning rod (1), and the cross expansion groove (2) divides the positioning rod (1) into an expansion rod structure with a variable diameter. The positioning rod (1) has a positioning hole (3) on its side along the diameter direction. An expansion pin (4) is inserted into the inside of the positioning hole (3). The expansion pin (4) cooperates with the positioning hole (3) to expand the opening of the cross expansion groove (2). The positioning rod (1) presses and positions the valve core hole wall from the inside of the valve core.

2. The ball valve turning tooling as described in claim 1, characterized in that: The positioning rod (1) has a positioning ring (5) fixed on its side. The positioning ring (5) has a conical structure. The two positioning rings (5) form a pair of fixed structures with the diameter gradually increasing from the middle to both sides.

3. The ball valve turning tooling as described in claim 2, characterized in that: An end block (6) is fixed to the side of the positioning rod (1) and at the end of the cross expansion groove (2), and the positioning hole (3) is located between the positioning ring (5) and the end block (6).

4. The ball valve turning tooling as described in claim 3, characterized in that: A conical block (7) is fixed on the side of the end block (6) away from the positioning ring (5), and the conical block (7) is fixed coaxially with the positioning rod (1).

5. The ball valve turning tooling as described in claim 1, characterized in that: The positioning rod (1) has a cross expansion groove (2) with a cavity (8) on the inner side of one end. A fixing block (9) is fixed to the bottom wall of the cavity (8). The expansion pin (4) passes through the positioning hole (3) and is threadedly connected to the fixing block (9).

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