Valve body honing clamp

Abstract

The utility model discloses a valve body honing clamp, and belongs to the field of machining clamps. Comprising a top plate, a bottom plate and a side plate arranged between the top plate and the bottom plate, a positioning gasket is movably embedded in the bottom plate, a gland screw coaxially arranged with the positioning gasket is connected to the top plate through a positioning nut, and a supporting check block capable of being attached to a valve body is detachably connected to the side plate; wherein the positioning washer is provided with a positioning convex part which can be embedded into the port of the valve body, the gland screw rod is in threaded connection with the positioning nut, and one end, penetrating through the positioning nut, of the gland screw rod can be propped against and supported on the edge of the port of the valve body; the valve body honing clamp is convenient to operate, can effectively fix the valve body, and meets the positioning accuracy of valve body machining.

Description

Technical Field

[0001] The utility model belongs to the field of mechanical processing fixtures, in particular to a valve body honing fixture. Background Art

[0002] Honing, as an efficient and high-precision hole-making method, is widely used in valve body manufacturing. Specialized honing fixtures ensure process stability and workpiece precision. During the honing process, the workpiece must maintain a high degree of stability to avoid machining errors caused by factors such as vibration and displacement. Existing valve body honing fixtures struggle to meet these requirements.

[0003] Therefore, there is an urgent need for a valve body honing fixture that can effectively fix the workpiece and meet the workpiece processing accuracy and surface quality. Utility Model Content

[0004] The purpose of the utility model is to overcome the deficiencies in the prior art and provide a valve body honing fixture that is easy to operate, can effectively fix the valve body, and meets the positioning accuracy required for valve body processing.

[0005] To achieve the above-mentioned object, the technical solution adopted by the present invention is as follows: a valve body honing fixture, comprising a top plate, a bottom plate, and a side plate arranged between the top plate and the bottom plate, a positioning washer being movably embedded in the bottom plate, a gland screw coaxially arranged with the positioning washer being connected to the top plate via a positioning nut, and a support block capable of resting against the valve body being detachably connected to the side plate;

[0006] The positioning washer is provided with a positioning protrusion that can be embedded in the valve body port, the gland screw is threadedly connected to the positioning nut, and one end of the gland screw passes through the positioning nut and can abut and support the edge of the valve body port.

[0007] Optionally, the end of the gland screw that abuts against the valve body port is tapered.

[0008] Optionally, the middle parts of the gland screw and the positioning washer are both provided with through holes communicating with the valve body port.

[0009] Optionally, the bottom plate is provided with a limiting groove capable of being embedded in one end of the side plate, and the side plate is provided with a first bolt capable of being threadedly connected to the bottom plate, and the bottom plate is embedded with a second bolt capable of being threadedly connected to the side plate, and the second bolt is immersed in the bottom plate.

[0010] Optionally, a flat washer and an anti-loosening washer are provided on the first bolt.

[0011] Optionally, the top plate is fixed to the side plate by a third bolt, and a slot is provided on the top plate, and the third bolt can be movably embedded in the slot.

[0012] Optionally, a positioning column is provided on a side of the bottom plate facing away from the top plate.

[0013] Optionally, the positioning column and the positioning nut can be detachably connected to the top plate and the bottom plate respectively through a fourth bolt.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] (1) The valve body is accurately positioned by the support block and the positioning convex part, reducing the processing error caused by inaccurate positioning. At the same time, the clamping structure formed by the positioning washer and the gland screw effectively fixes the valve body, preventing the valve body from displacement or vibration during the honing process, which helps to improve the quality and flatness of the processed surface;

[0016] (2) The valve body honing fixture adopts a modular design. Components such as the positioning nut, gland screw, and positioning washer can be replaced or adjusted independently to meet the processing requirements of valve bodies of different specifications and models. This improves the flexibility of the fixture while reducing production costs and maintenance difficulties. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Figure 1 It is a structural schematic diagram of a valve body honing fixture in a preferred embodiment of the utility model;

[0019] Figure 2 This is a structural diagram of the valve body honing fixture in the preferred embodiment of the present utility model when positioning and fixing the valve body;

[0020] Figure 3 This is a schematic diagram of the top view of the valve body honing fixture in the preferred embodiment of the utility model;

[0021] Figure 4 In the preferred embodiment of the present utility model Figure 3 Schematic diagram of the cross-sectional structure at AA;

[0022] Among them, 1. top plate; 101. notch; 2. bottom plate; 201. limiting groove; 3. side plate; 4. positioning washer; 401. positioning protrusion; 5. positioning nut; 6. gland screw; 7. support block; 8. through hole; 9. first bolt; 10. second bolt; 11. third bolt; 12. positioning column; 13. fourth bolt. DETAILED DESCRIPTION

[0023] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. These drawings are simplified schematic diagrams that only illustrate the basic structure of the present invention in a schematic manner, and therefore only show components related to the present invention.

[0024] It should be noted that if there are directional indications (such as up, down, bottom, top, etc.) involved in this embodiment, the directional indication is only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly. The terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. Unless otherwise clearly specified and defined, the terms "set", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be a communication between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0025] like Figures 1-4 The figure shows a valve body honing fixture comprising a top plate 1, a bottom plate 2, and a side plate 3 disposed between the top and bottom plates 1 and 2. The top, bottom, and side plates 3 form a "mouth"-shaped frame, which serves as a force-bearing structure for positioning and securing the valve body and exhibits high overall strength. A positioning washer 4 is movably embedded in the bottom plate 2. A gland screw 6, coaxially arranged with the positioning washer 4, is connected to the top plate 1 via a positioning nut 5. A support block 7, which can be removably attached to the side plate 3 and abutted against the valve body, is bolted to the side plate 3. The valve body can rest on the positioning washer 4, while the support block 7 serves as a reference surface for securing the valve body. By placing the valve body on the positioning washer 4 and resting it against the support block 7, and then twisting the gland screw 6 so that one end of the gland screw 6 rests against the valve body, the positioning washer 4 and gland screw 6 secure the valve body in place.

[0026] Specifically, to precisely locate the valve body, the positioning gasket 4 is provided with a positioning protrusion 401 that can be embedded in the valve body port. The gland screw 6 is threadedly connected to the positioning nut 5, and one end of the gland screw 6 extends through the positioning nut 5, allowing it to rest against and support the edge of the valve body port. When the valve body is placed on the positioning gasket 4, the positioning protrusion 401 can be used to precisely locate the valve body. In conjunction with the support block 7, which can locate the valve body as a fixed reference, the valve body can be precisely positioned and fixed, reducing machining errors caused by inaccurate positioning. Furthermore, the clamping structure formed by the gland screw 6 and the positioning gasket 4 can effectively secure the valve body, preventing displacement or vibration during the honing process, thereby improving the quality and flatness of the machined surface.

[0027] Further, such as Figure 1 、 Figure 4 As shown, the end of the gland screw 6 that abuts the valve body port is tapered. When securing the valve body, only the tapered surface at one end makes linear contact with the valve body port, preventing friction damage between the valve body's surface and interior. Furthermore, the gland screw 6 can secure valve bodies of varying port inner diameters within a certain range, enhancing the fixture's flexibility.

[0028] At the same time, if Figure 4 As shown, the middle parts of the gland screw 6 and the positioning washer 4 are both provided with through holes 8 that are in communication with the valve body port, so as to facilitate the discharge of waste chips that enter the interior of the valve body during machining.

[0029] In this embodiment, the positioning column 12 and the positioning nut 5 can be disassembled and connected to the top plate 1 and the bottom plate 2 respectively through the fourth bolt 13. The valve body honing fixture adopts a modular design. The positioning nut 5, the pressure cover screw 6, the positioning washer 4 and other components can be replaced or adjusted independently to adapt to the processing requirements of valve bodies of different specifications and models.

[0030] Further, such as Figure 2 、 Figure 3 As shown, the bottom plate 2 is provided with a retaining groove 201 that can be inserted into one end of the side plate 3 to locate the installation position of the side plate 3. A first bolt 9 is inserted through the side plate 3 and threadedly connected to the bottom plate 2. The first bolt 9 is fitted with a flat washer and a lock washer to ensure stability after tightening. Simultaneously, a second bolt 10 is embedded in the bottom plate 2 and threadedly connected to the side plate 3. The second bolt 10 is recessed into the bottom plate 2. The first and second bolts 9, 10 secure the side plate 3 to the bottom plate 2, effectively increasing the connection strength between the bottom plate 2 and the side plate 3 and ensuring the stability of the load-bearing structure.

[0031] Furthermore, when positioning and fixing some valve bodies with complex external structures by the valve body honing fixture in this technology, the valve body cannot be directly placed on the positioning gasket 4, so the top plate 1 needs to be removed. This operation will directly reduce efficiency. Figure 3 As shown, specifically, in this technical solution, the top plate 1 is connected to the bottom plate 2 via two side plates 3. A notch 101 is provided on the top plate 1 at a position corresponding to one of the side plates 3. A third bolt 11 is passed through the top plate 1. A third bolt 11 is threadedly connected to the side plate 3 and can be movably inserted into the notch 101. The bolt head of the third bolt 11 can be pressed down on the top plate 1. After loosening the third bolt 11 on the side plate 3, the top plate 1 can rotate around the third bolt 11 that passes through the top plate 1 and is threadedly connected to the side plate 3. This facilitates rapid restoration and fixation of the top plate 1 after the valve body is placed on the positioning washer 4.

[0032] In this technical solution, in order to facilitate fixing the valve body honing fixture on the processing equipment or processing platform, a positioning column 12 is provided on the side of the bottom plate 2 facing away from the top plate 1, and the positioning column 12 is coaxially arranged with the gland screw 6 and the positioning washer 4.

[0033] Working principle: First, place the valve body to be processed against the support block 7, and move one end of the valve block to the positioning washer 4. Use the positioning protrusion 401 on the positioning washer 4 to locate the position of the valve body. Then, twist the gland screw 6 so that the tapered end of the gland screw 6 is pressed down on the port of the valve body, thereby completing the positioning and fixing of the valve body. The valve body honing fixture in this technical solution can accurately locate the position of the valve body through the support block and the positioning protrusion 401, reducing the processing error caused by inaccurate positioning. At the same time, the clamping structure formed by the positioning washer 4 and the gland screw 6 effectively fixes the valve body, preventing the valve body from displacement or vibration during the honing process, which helps to improve the quality and flatness of the processed surface.

[0034] The above description is based on the ideal embodiment of the present invention. Based on the above description, relevant personnel can make various changes and modifications without departing from the technical scope of the present invention. The technical scope of the present invention is not limited to the content of the specification, but must be determined according to the scope of the claims.

Claims

1. A valve body honing fixture, characterized by: The valve body comprises a top plate (1), a bottom plate (2), and a side plate (3) arranged between the top plate (1) and the bottom plate (2); a positioning washer (4) is movably embedded in the bottom plate (2); a gland screw (6) coaxially arranged with the positioning washer (4) is connected to the top plate (1) via a positioning nut (5); and a support block (7) capable of resting on the valve body is detachably connected to the side plate (3); The positioning washer (4) is provided with a positioning protrusion (401) capable of being embedded in the valve body port, the gland screw (6) is threadedly connected to the positioning nut (5), and one end of the gland screw (6) passes through the positioning nut (5) and can abut and support the edge of the valve body port.

2. The valve body honing fixture according to claim 1, characterized in that: The end of the gland screw (6) that abuts against the valve body port is tapered.

3. The valve body honing fixture according to claim 1, characterized in that: The middle parts of the gland screw (6) and the positioning washer (4) are both provided with through holes (8) that communicate with the valve body port.

4. The valve body honing fixture according to claim 1, characterized in that: The bottom plate (2) is provided with a limiting groove (201) capable of being embedded in one end of the side plate (3), and the side plate (3) is provided with a first bolt (9) capable of being threadedly connected to the bottom plate (2), and the bottom plate (2) is provided with a second bolt (10) capable of being threadedly connected to the side plate (3), and the second bolt (10) is immersed in the bottom plate (2).

5. The valve body honing fixture according to claim 4, characterized in that: A flat washer and an anti-loosening washer are sleeved on the first bolt (9).

6. The valve body honing fixture according to claim 1, characterized in that: The top plate (1) is fixed to the side plate (3) via a third bolt (11), and a notch (101) is provided on the top plate (1), and the third bolt (11) can be movably embedded in the notch (101).

7. The valve body honing fixture according to claim 1, characterized in that: A positioning column (12) is provided on the side of the bottom plate (2) facing away from the top plate (1).

8. The valve body honing fixture according to claim 7, characterized in that: The positioning column (12) and the positioning nut (5) can be detachably connected to the top plate (1) and the bottom plate (2) respectively via a fourth bolt (13).

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