A wedge gate valve sealing surface tooling fixture
By using an adjustable support structure and a modular steering seat for the wedge gate valve sealing surface tooling fixture, the problems of adaptability and angle adjustment of existing fixtures are solved, and efficient grinding of the wedge gate valve sealing surface is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU LIANXIN VALVE CO LTD
- Filing Date
- 2025-08-21
- Publication Date
- 2026-07-21
AI Technical Summary
Existing wedge gate valve sealing surface machining fixtures are difficult to adapt to workpieces of different sizes and cannot be rotated, resulting in poor grinding angles and affecting the grinding effect of the sealing surface.
The wedge gate valve sealing surface tooling fixture adopts an adjustable support structure and a cylinder pushing structure, combined with a modular steering seat, to achieve clamping and angle adjustment. Through the cooperation of an electric hydraulic push rod and multiple clamping components, multi-angle grinding is achieved.
It enables flexible clamping and angle adjustment of the sealing surface of the wedge gate valve, facilitates grinding at different positions, and improves the efficiency and quality of sealing surface processing.
Smart Images

Figure CN224526839U_ABST
Abstract
Description
Technical Field
[0001] This utility model is a tooling fixture for the sealing surface of a wedge gate valve, belonging to the field of gate valve processing technology. Background Technology
[0002] As a common valve type, the quality of the sealing surface of a wedge gate valve directly affects its sealing performance and service life. In existing technology, the sealing surface of a wedge gate valve is typically fixed and limited by a clamp during the grinding process.
[0003] However, fixed fixtures fix the workpiece to the worktable with bolts or clips, which has a limited adjustment range and is difficult to adapt to workpieces of different sizes. At the same time, most fixtures only have a clamping function and cannot rotate the clamped workpiece, making it inconvenient for grinding personnel to grind the sealing surfaces of different positions of the gate valve at a good angle. There is an urgent need for a wedge gate valve sealing surface tooling fixture to solve the above problems. Utility Model Content
[0004] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a wedge gate valve sealing surface tooling fixture to solve the problems mentioned in the background art. This utility model has a reasonable structure, adopting an adjustable support structure in conjunction with a cylinder pushing structure, which can achieve the clamping and fixing of the wedge gate valve. In addition, the modular steering seat design allows for the steering adjustment of the clamped and fixed wedge gate valve, making it convenient for grinding personnel to perform grinding operations on the sealing surfaces of different positions of the gate valve at a good angle. It is highly practical.
[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a wedge gate valve sealing surface tooling fixture, including a module seat and a wedge gate valve body. A bearing seat is horizontally mounted on the upper end of the module seat by bolts. A support column is longitudinally mounted inside the bearing seat. Welding rods are welded to the front and rear ends of the support column. Hexagonal bolts are threaded into the other side of the upper ends of the two welding rods. Three welding columns are horizontally welded to the side surface of the support column. Sliding sleeves are mounted on the outside of the three welding columns by reinforcing bolts. Concave clamping seats are bolted to the upper ends of the three sliding sleeves. Arc-shaped anti-slip rubber sheets are adhered to the arc-shaped surfaces of the three concave clamping seats. A stand is welded to the rear end of the module seat. An electric hydraulic push rod is installed through the upper end of the stand. A clamping head is mounted on the movable end of the electric hydraulic push rod by a flange and bolts. A concave limiting block is adhered to the lower end of the clamping head. A concave rubber sheet is adhered to the inner side of the concave limiting block. The wedge gate valve body is horizontally placed on the upper end of multiple arc-shaped anti-slip rubber sheets.
[0006] Furthermore, the threaded ends of both hexagonal bolts abut against the module base.
[0007] Furthermore, triangular reinforcing plates are welded to the left and right corners of the support frame.
[0008] Furthermore, a rubber pad is adhered to the upper end of the support column.
[0009] Furthermore, the rubber pad abuts against the middle of the lower end of the wedge gate valve body.
[0010] Furthermore, the concave rubber sheet abuts against the middle of the upper end of the wedge gate valve body.
[0011] The beneficial effects of this utility model are as follows: This utility model provides a wedge gate valve sealing surface tooling fixture. Because it adds a modular seat, bearing seat, support column, welding rod, hexagonal bolt, welding column, sliding sleeve, reinforcing bolt, concave clamping seat, arc-shaped anti-slip rubber sheet, electric hydraulic push rod, clamping head, concave limit block, and concave rubber sheet, and adopts an adjustable support structure in conjunction with a cylinder pushing structure, it can achieve the clamping and fixing of the wedge gate valve. In addition, the modular steering seat design allows the wedge gate valve to be adjusted in direction, making it convenient for grinding personnel to grind the sealing surface of the gate valve at different positions at a good angle. It is highly practical. Attached Figure Description
[0012] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:
[0013] Figure 1 This is a schematic diagram of the structure of a wedge gate valve sealing surface tooling fixture according to the present invention;
[0014] Figure 2 This is a schematic diagram of the pre-use structure of a wedge gate valve sealing surface tooling fixture according to the present invention;
[0015] Figure 3 This is a schematic diagram of the cross-sectional structure of the concave limiting block of a wedge gate valve sealing surface tooling fixture according to the present invention.
[0016] In the diagram: 1-Module base, 2-Bearing base, 3-Support column, 4-Welding rod, 5-Hex bolt, 6-Rubber pad, 7-Welding column, 8-Sliding sleeve, 9-Reinforcing bolt, 10-Concave clamping seat, 11-Arc-shaped anti-slip rubber sheet, 12-Upright frame, 13-Triangular reinforcing plate, 14-Electro-hydraulic push rod, 15-Clamping head, 16-Concave limit block, 17-Concave rubber sheet, 18-Wedge gate valve body. Detailed Implementation
[0017] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0018] Please see Figures 1-3This utility model provides a technical solution: a wedge gate valve sealing surface tooling fixture, including a module seat 1 and a wedge gate valve body 18. A bearing seat 2 is horizontally mounted on the upper end of the module seat 1 via bolts. A support column 3 is longitudinally mounted inside the bearing seat 2. Welding rods 4 are welded to both the front and rear ends of the support column 3. Hex bolts 5 are threaded into the other side of the upper ends of the two welding rods 4. Three welding columns 7 are horizontally welded to the side surface of the support column 3. Sliding sleeves 8 are mounted on the outside of each of the three welding columns 7 via reinforcing bolts 9. Concave clamping seats 10 are bolted to the upper ends of each of the three sliding sleeves 8. Arc-shaped anti-slip rubber sheets 11 are adhered to the arc-shaped surfaces of each of the three concave clamping seats 10. 1. A support frame 12 is welded to the rear end. An electric hydraulic push rod 14 is installed through the upper end of the support frame 12. A clamping head 15 is installed on the movable end of the electric hydraulic push rod 14 through a flange and bolts. A concave limiting block 16 is glued to the lower end of the clamping head 15. A concave rubber sheet 17 is glued to the inner side of the concave limiting block 16. The wedge gate valve body 18 is placed horizontally on the upper end of multiple arc-shaped anti-slip rubber sheets 11. This design solves the problem that the original fixed clamp fixes the workpiece to the workbench by bolts or buckles, which has a limited adjustment range, is difficult to adapt to workpieces of different sizes, cannot turn the clamped workpiece, and is inconvenient for grinding personnel to grind the sealing surface of the gate valve at different positions at a good angle.
[0019] In the first embodiment of this utility model: the threaded ends of the two hexagonal bolts 5 abut against the module seat 1. By adding the two hexagonal bolts 5 and having their threaded ends abut against the module seat 1, the two welded rods 4 can indirectly lock the support column 3, preventing the support column 3 from rotating on its own within the bearing seat 2. Triangular reinforcing plates 13 are welded to the left and right corners of the upright frame 12. The added triangular reinforcing plates 13 can improve the overall strength of the upright frame 12. A rubber pad 6 is glued to the upper end of the support column 3. The rubber pad 6 abuts against the middle of the lower end of the wedge gate valve body 18. The added rubber pad 6 can prevent the lower end of the wedge gate valve body 18 from directly contacting the support column 3 and causing wear. A concave rubber sheet 17 abuts against the middle of the upper end of the wedge gate valve body 18. The added concave rubber sheet 17 abuts against the middle of the upper end of the wedge gate valve body 18 can prevent the upper end of the wedge gate valve body 18 from directly contacting the concave limiting block 16 and causing wear.
[0020] As a second embodiment of this utility model: Based on the dimensions of the wedge gate valve body 18, loosen the three reinforcing bolts 9 with a wrench, then push the three sliding sleeves 8. The three sliding sleeves 8 can then slide on the surface of the three welded columns 7, thereby changing the position of the three concave clamping seats 10. After the position of the three concave clamping seats 10 matches the position of the lower wall of the pipe interface of the wedge gate valve body 18, tighten the three reinforcing bolts 9 so that the threaded ends of the three reinforcing bolts 9 pass through the sliding sleeves 8 and are tightly abutted against the lower ends of the three welded columns 7. Then place the wedge gate valve body 18 on the three concave clamping seats 10 (e.g., Figure 1(As shown), then the electric hydraulic push rod 14 is activated. The electric hydraulic push rod 14 can adjust the clamping head 15 and the concave limit block 16 to move downwards until the concave rubber sheet 17 is tightly abutted against the wedge gate valve body 18, thus limiting and fixing the wedge gate valve body 18. Then, the grinding personnel can perform grinding operations on the sealing surface of the wedge gate valve body 18. After grinding one of the sealing surfaces, the electric hydraulic push rod 14 is controlled to retract, and then the two hexagonal bolts 5 are loosened so that the threaded ends of the two hexagonal bolts 5 are not in contact with the module seat 1. Then the support column 3 can be rotated to make The support column 3 rotates within the bearing seat 2, thereby changing the orientation of the wedge gate valve body 18 until the remaining un-ground sealing surfaces of the wedge gate valve body 18 face the grinding personnel. Then, the two hexagonal bolts 5 are tightened so that the threaded ends of the two hexagonal bolts 5 abut against the module seat 1. This allows the two welding rods 4 to indirectly lock the support column 3. Then, the electric hydraulic push rod 14 is lowered again so that the concave rubber sheet 17 abuts against the middle of the upper end of the wedge gate valve body 18. This makes it convenient for the grinding personnel to grind the remaining sealing surfaces of the wedge gate valve body 18.
[0021] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0022] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A tooling fixture for the sealing surface of a wedge gate valve, comprising a module base (1) and a wedge gate valve body (18), characterized in that: The upper end of the module base (1) is horizontally mounted with a bearing seat (2) by bolts. A support column (3) is longitudinally mounted inside the bearing seat (2). Welding rods (4) are welded to both the front and rear ends of the support column (3). Hexagonal bolts (5) are threaded into the other side of the upper ends of the two welding rods (4). Three welding columns (7) are horizontally welded to the side surface of the support column (3). Sliding sleeves (8) are installed on the outside of the three welding columns (7) by reinforcing bolts (9). A concave clamping seat (10) is installed on the upper end of the three sliding sleeves (8) by bolts. The concave clamping seat (10) has an inherent arc-shaped anti-slip rubber sheet (11) glued to its arc-shaped surface. The module seat (1) has a stand (12) welded to its rear end. An electric hydraulic push rod (14) is installed through the upper end of the stand (12). A clamping head (15) is installed on the movable end of the electric hydraulic push rod (14) through a flange and bolts. A concave limiting block (16) is glued to the lower end of the clamping head (15). A concave rubber sheet (17) is glued to the inner side of the concave limiting block (16). The wedge gate valve body (18) is placed horizontally on the upper end of multiple arc-shaped anti-slip rubber sheets (11).
2. The wedge gate valve sealing surface tooling fixture according to claim 1, characterized in that: The threaded ends of both hexagonal bolts (5) abut against the module base (1).
3. The wedge gate valve sealing surface tooling fixture according to claim 1, characterized in that: Triangular reinforcing plates (13) are welded to the left and right corners of the upright frame (12).
4. The wedge gate valve sealing surface tooling fixture according to claim 1, characterized in that: The upper end of the support column (3) is fitted with a rubber pad (6).
5. A wedge gate valve sealing surface tooling fixture according to claim 4, characterized in that: The rubber pad (6) abuts against the middle of the lower end of the wedge gate valve body (18).
6. The wedge gate valve sealing surface tooling fixture according to claim 1, characterized in that: The concave rubber sheet (17) abuts against the middle of the upper end of the wedge gate valve body (18).