Valve body fixing tool

Abstract

The utility model relates to the technical field of multi-face machining of complex part valve bodies, and discloses a valve body fixing tool which comprises a connecting plate, the connecting plate is connected with driving mechanisms on the two sides through keys and nuts, the connecting plate is connected with a bridge plate through nuts, four positioning base plates are installed on the bridge plate, and an air cylinder is fixedly installed at the bottom of each positioning base plate. The upper portions of the positioning base plates and the positioning sleeve are screwed tightly, a set of positioning pins is installed beside each positioning base plate, and each set of positioning pins comprises a cylindrical positioning pin and a rhombic positioning pin. The positioning sleeve is made of nylon materials, the positioning sleeve is mainly used for protecting an inner hole of a product, preventing the inner hole from being scratched and assisting in limiting rotation of a part, the base plate is arranged on the bridge plate and used for positioning and installing the large end face of the part, and a top thread is screwed with a thread of the positioning sleeve and used for protecting the large hole of the part and roughly positioning the part.

Description

Technical Field

[0001] This utility model relates to the field of multi-faceted machining technology for complex valve bodies, specifically a valve body fixing fixture. Background Technology

[0002] Currently, valve body machining fixtures typically consist of a base, an adjusting mechanism, a moving mechanism, and a fixing mechanism. The base is equipped with an adjusting groove and a moving groove. The adjusting mechanism is used to adjust the position of the first fixing mechanism, and the moving mechanism is used to precisely control the position of the second fixing mechanism. Through the coordinated action of the two fixing mechanisms, the gate valve body is securely fixed.

[0003] The existing valve body fixing fixture still has the following problems when in use: its adjustment is relatively complicated. When processing valve bodies of different sizes, it is necessary to make complicated adjustments to the adjustment mechanism and the moving mechanism of the fixture, which takes a long time. At the same time, its clamping and fixing structure is very likely to cause damage to the valve body hole when tightening the valve body. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a valve body fixing fixture, which solves the problems mentioned in the background art.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a valve body fixing fixture, including a connecting plate, the connecting plate being connected to two driving mechanisms via a key and a nut, the connecting plate being connected to a bridge plate via a nut, four positioning pads being installed on the bridge plate, a cylinder being fixedly installed at the bottom of each positioning pad, the upper part of the positioning pad being screwed onto a positioning sleeve, and a set of positioning pins being installed next to each positioning pad, the set of positioning pins including a cylindrical positioning pin and a diamond-shaped positioning pin.

[0008] As a further embodiment of this utility model: the positioning pad is shaped like a double-ended bolt with a washer in the middle. The bottom of the positioning pad is a smooth cylinder and is interference-fitted into the cylindrical hole of the bridge plate. The cylinder is fixedly installed below the bridge plate. The positioning pad is set on the upper surface of the bridge plate and is used to position and install the large end face of the part. The top thread of the positioning pad is screwed and fixedly installed with the thread of the positioning sleeve to be processed, i.e., the part to be processed. It can be used to protect the large hole of the part and to coarsely position the part.

[0009] As a further improvement of this utility model: the positioning sleeve is screwed tightly onto the upper end of the positioning pad, and the positioning sleeve is made of nylon with a 1mm gap from the large hole of the valve body to be processed. Its main function is to prevent iron filings from entering the inner hole of the part and scratching it, and it also facilitates installation with the two positioning pins, while assisting in positioning and preventing the part from rotating. The threaded sleeve design makes it easy to replace the threaded sleeve after it wears out. The cylindrical positioning pin and the diamond-shaped positioning pin are interference-fitted onto the bridge plate. The cylindrical positioning pin has high precision and can accurately position the product, while the diamond-shaped pin design facilitates product installation while ensuring accurate positioning.

[0010] As a further improvement of this utility model: a pressure plate is threadedly installed on the top of the positioning sleeve, and the pressure plate matches the cylinder's pull rod. The cylinder can drive the pressure plate to press the product downwards. After production is completed, the pressure plate can be removed from the large end, the product can be taken out, and the next piece can be processed, which is very convenient and flexible.

[0011] As a further embodiment of this utility model: the driving mechanism includes a support fixedly connected to one side of the top of the connecting plate, a rotating mating seat fixedly installed at the top of the support, a first T-shaped block rotatably installed on the other side of the rotating mating seat, and a bridge plate fixedly connected to the other end of the first T-shaped block. The driving mechanism also includes a driver fixedly connected to the other side of the top of the connecting plate, a second T-shaped block fixedly connected to one driving end of the driver, a bridge plate fixedly connected to one end of the second T-shaped block, the bridge plate being coaxially arranged with the first T-shaped block and the second T-shaped block, and a CNC device being provided at the front end of the driver.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. In this utility model, by adopting an automated adjustment structure design, the whole is driven by an electric or hydraulic drive and equipped with a CNC system, automated adjustment is achieved, thereby improving adjustment efficiency and accuracy.

[0014] 2. In this utility model, the positioning sleeve is made of nylon, and its main function is to protect the inner hole of the product and prevent it from being scratched. It can also help restrict the rotation of the parts. The pad is on the bridge plate and is used to position and install the large end face of the parts. The top thread is screwed tightly with the positioning sleeve thread to protect the large hole of the parts and to coarsely position the parts. Attached Figure Description

[0015] Figure 1 The overall three-dimensional structure of this utility model Figure 1 ;

[0016] Figure 2 The overall three-dimensional structure of this utility model Figure 2 .

[0017] In the diagram: 1. Connecting plate; 2. Cylinder; 3. Bridge plate; 4. Positioning pad; 5. Positioning sleeve; 6. Valve body to be processed; 7. Support; 8. Rotary mating seat; 9. First T-block; 10. Driver; 11. Second T-block; 12. CNC equipment; 13. Cylindrical positioning pin; 14. Rhomboid positioning pin. Detailed Implementation

[0018] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0019] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] Please see Figures 1-2 In this embodiment of the utility model, a valve body fixing fixture includes a connecting plate 1. The connecting plate 1 is connected to the two-sided drive mechanism by a key and a nut. The connecting plate 1 is connected to the bridge plate 3 by a nut. Four positioning pads 4 are installed on the bridge plate 3. A cylinder 2 is fixedly installed at the bottom of each positioning pad 4. The upper part of the positioning pad 4 is screwed to the positioning sleeve 5. A set of positioning pins is installed next to each positioning pad 4. The set of positioning pins includes a cylindrical positioning pin 13 and a diamond-shaped positioning pin 14. During processing, the large hole and two small holes of the valve body 6 to be processed are respectively installed on the positioning sleeve 5 and the two positioning pins. The bottom end face is placed on the positioning pad 4. The machine cylinder 2 is started, and the pressure plate presses down to tighten the valve body 6 to be processed, and processing begins. In this process, the cylindrical positioning pin 13, the diamond-shaped positioning pin 14 and the positioning pad 4 position the product and restrict its movement in six directions. The positioning sleeve 5 is made of nylon and its main function is to protect the inner hole of the valve body 6 to be processed, prevent it from being scratched, and also help to restrict the rotation of the parts.

[0022] The positioning pad 4 is shaped like a double-ended bolt with a washer in the middle. The bottom of the positioning pad 4 is a smooth cylinder and is interference-fitted into the cylindrical hole of the bridge plate 3. The cylinder 2 is fixedly installed below the bridge plate 3. The positioning pad 4 is set on the upper end face of the bridge plate 3 and is used to position and install the large end face of the part. The top thread of the positioning pad 4 is screwed tightly with the thread of the positioning sleeve 5 and fixedly installed on the valve body 6 to be processed, that is, the part to be processed. It can be used to protect the large hole of the part and to roughly position the part.

[0023] The positioning sleeve 5 is screwed tightly onto the upper end of the positioning pad 4. The positioning sleeve 5 is made of nylon and has a 1mm gap with the large hole of the valve body 6 to be processed. Its main function is to prevent iron filings from entering the inner hole of the part and scratching it. It also facilitates installation with the two positioning pins and assists in positioning to prevent the part from rotating. The threaded sleeve design makes it easy to replace the threaded sleeve after it wears out. The cylindrical positioning pin 13 and the diamond-shaped positioning pin 14 are interference-fitted onto the bridge plate 3. The cylindrical positioning pin 13 has high precision and can accurately position the product. The diamond-shaped pin design facilitates product installation while ensuring accurate positioning.

[0024] The top of the positioning sleeve 5 is threaded with a pressure plate, which is matched with the pull rod of the cylinder 2. The cylinder can drive the pressure plate to press the product downward. After production is completed, the pressure plate can be removed from the large end, the product can be taken out, and the next piece can be processed. It is very convenient and flexible.

[0025] The drive mechanism includes a support 7 fixedly connected to one side of the top of the connecting plate 1. A rotating mating seat 8 is fixedly installed on the top of the support 7. A first T-block 9 is rotatably installed on the other side of the rotating mating seat 8. The other end of the first T-block 9 is fixedly connected to the bridge plate 3. The drive mechanism also includes a driver 10 fixedly connected to the other side of the top of the connecting plate 1. A second T-block 11 is fixedly connected to one driving end of the driver 10. One end of the second T-block 11 is fixedly connected to the bridge plate 3. The bridge plate 3, the first T-block 9, and the second T-block 11 are coaxially arranged. A CNC device 12 is provided at the front end of the driver 10. The whole adopts an automated adjustment structure design. The driver 10 is electrically or hydraulically driven and equipped with a CNC system to realize automated adjustment and improve adjustment efficiency and accuracy.

[0026] The working principle of this utility model is as follows: the positioning pad 4 is installed on the bridge plate 3, the bottom is connected to the cylinder 2, and the upper end is screwed tightly to the positioning sleeve 5. A cylindrical positioning pin 13 and a diamond positioning pin 14 are installed next to the positioning pad 4. When processing the parts, the end face of the valve body 6 to be processed is placed on the positioning pad 4, and its large hole and two other small holes are respectively installed on the positioning sleeve 5, the cylindrical positioning pin 13 and the diamond positioning pin 14. When the equipment is started, the upper pressure plate presses the valve body 6 to be processed, and the valve body 6 to be processed can begin to be processed.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A valve body fixing fixture, comprising a connecting plate (1), characterized in that: The connecting plate (1) is connected to the driving mechanisms on both sides by a key and a nut, and the connecting plate (1) is connected to the bridge plate (3) by a nut; Four positioning pads (4) are installed on the bridge plate (3). A cylinder (2) is fixedly installed at the bottom of each positioning pad (4). The upper part of the positioning pad (4) is screwed to the positioning sleeve (5). A set of positioning pins is installed next to each of the positioning pads (4), the set of positioning pins including a cylindrical positioning pin (13) and a diamond positioning pin (14).

2. The valve body fixing fixture according to claim 1, characterized in that: The positioning pad (4) is shaped like a double-headed bolt with a washer in the middle. The bottom of the positioning pad (4) is a smooth cylinder and is interference-fitted into the cylindrical hole of the bridge plate (3). The cylinder (2) is fixedly installed below the bridge plate (3).

3. The valve body fixing fixture according to claim 1, characterized in that: The positioning pad (4) is set on the upper end face of the bridge plate (3), and the top thread of the positioning pad (4) is screwed tightly with the positioning sleeve (5) and the valve body (6) to be processed is fixedly installed.

4. The valve body fixture of claim 1, wherein: The positioning sleeve (5) is screwed tightly to the upper end of the positioning pad (4), and the positioning sleeve (5) is made of nylon and has a 1mm gap with the large hole of the valve body (6) to be processed.

5. The valve body fixing fixture according to claim 1, characterized in that: The cylindrical locating pin (13) and the rhomboid locating pin (14) are interference-fitted onto the bridge plate (3).

6. The valve body fixing fixture according to claim 1, characterized in that: The top of the positioning sleeve (5) is threaded with a pressure plate, and the pressure plate matches the pull rod of the cylinder (2).

7. The valve body fixture of claim 1, wherein: The driving mechanism includes a support (7) that is fixedly connected to one side of the top of the connecting plate (1). A rotating mating seat (8) is fixedly installed on the top of the support (7). A first T-block (9) is rotatably installed on the other side of the rotating mating seat (8). The other end of the first T-block (9) is fixedly connected to the bridge plate (3).

8. The valve body fixing fixture according to claim 1, characterized in that: The drive mechanism also includes a driver (10) fixedly connected to the other side of the top of the connecting plate (1). A second T-block (11) is fixedly connected to one drive end of the driver (10). A bridge plate (3) is fixedly connected to one end of the second T-block (11). The bridge plate (3) is coaxially arranged with the first T-block (9) and the second T-block (11). A CNC device (12) is provided at the front end of the driver (10).

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