Gate valve sealing surface machining device

Abstract

The utility model discloses a gate valve sealing surface machining device which comprises a fixed base, an installation base is installed on the upper surface of the fixed base, a connecting table is fixedly installed at the upper end of the installation base, the upper end of the connecting table and the lower end of a machining table are fixedly installed, and positioning columns are symmetrically and fixedly connected to the machining table. A gate valve is arranged at the upper end of the machining table, a rapid fixing mechanism is installed in the connecting table, and inner grooves are symmetrically formed in the connecting table. By means of the rapid fixing mechanism, limiting of the sealing face of the gate valve in the horizontal direction and the vertical direction can be rapidly completed, and it is guaranteed that the sealing face of the gate valve is not damaged in the welding or other machining process; the gate valve sealing face is always kept at the preset position, machining deviation caused by displacement or errors is avoided, machining precision of the gate valve sealing face is improved, product quality is guaranteed, operation is convenient and fast, and meanwhile production and machining efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to gate valve processing technical field, especially a kind of gate valve sealing surface processing device. BACKGROUND

[0002] Gate valve is a common valve, mainly used for controlling the flow of fluid (such as liquid, gas) in pipeline, the shell of gate valve, usually made of cast iron, cast steel, stainless steel and other materials, its shape is generally cylindrical, there is space containing gate and fluid passage inside. The two ends of valve body have interfaces connected to pipeline, and the interfaces are various, including flange connection, threaded connection, welding connection, etc., to adapt to different pipeline installation requirements. One of the main functions of gate valve is to control the on-off of fluid, and the quality of sealing surface is directly related to leakage. The surface of unprocessed sealing surface is rough, with many tiny concave-convex. When the gate valve is closed, these concave-convex cannot tightly adhere to each other, and fluid is easy to leak from the gap. Through precision machining, the sealing surface can achieve high flatness and smoothness, greatly reducing the leakage channel and effectively reducing the possibility of fluid leakage. When the sealing surface of gate valve is precisely machined, its position needs to be fixed. The existing fixing method is usually to directly use chuck for clamping, which is easy to scratch the gate valve to be processed in actual operation process, and the clamping operation process is very time-consuming and laborious, thereby affecting the production and processing efficiency of gate valve to some extent.

[0003] Therefore, it is urgent to provide a gate valve sealing surface processing device to solve the above problems. UTILITY MODEL CONTENT

[0004] The technical problem to be solved by the utility model is that the gate valve to be processed is easy to be scratched in actual operation process, and the clamping operation process is very time-consuming and laborious.

[0005] To solve the above technical problems, one technical scheme of the utility model is to provide a gate valve sealing surface processing device, which comprises a fixed base, an installation base is installed on the upper surface of the fixed base, a connecting table is fixedly installed on the upper end of the installation base, the connecting table is fixedly installed with the lower end of a machining table, positioning columns are symmetrically fixedly connected on the machining table, a gate valve is arranged on the upper end of the machining table, a quick fixing mechanism is installed in the connecting table, and inner grooves are symmetrically formed in the connecting table.

[0006] Through the above technical scheme, the quick fixing mechanism is arranged to ensure that the sealing surface of the gate valve remains in the predetermined position during welding or other processing, so as to avoid processing deviation caused by displacement or error, thereby improving the precision of gate valve sealing surface processing.

[0007] The utility model further sets up: quick fixed mechanism includes the limit clamp jaw of sliding connection between the connecting platform, limit clamp jaw is fixedly connected with limit link far from gate valve one end, the inside recess is opened to the both sides of connecting platform, the both sides of connecting platform are opened to the limit slot.

[0008] The utility model further sets up: the both sides of connecting platform are fixedly installed with limit cover, the extrusion block is connected in the limit cover, the one end of extrusion block is fixedly installed with the connecting block, the anti -skid line is opened to the one side of connecting block.

[0009] The utility model further sets up: the one side of limit slot is provided with mounting plate, the fixed connection between mounting plate and limit link, the other side is provided with fixed plate in the limit slot, the fixed installation between fixed plate and connecting platform, the fixed connection of limit post is arranged on mounting plate and fixed plate respectively, the reset spring is fixedly installed between limit posts, the one end of limit link is triangularly set up, the one end of extrusion block is wedge -shapedly set up close to limit link.

[0010] Through the above technical scheme, press the connecting block, and then extrusion block extrudes two limit clamp jaws, so that two limit clamp jaws can move up and down at the same time, after releasing the connecting block, two limit links are reset under the elastic action of two reset springs, so that two limit links can shrink inward at the same time, and then the end face of two limit links is attached to the sealing surface of gate valve, so that the limit of gate valve in horizontal direction is completed.

[0011] The utility model further sets up: the positioning hole is set up in the processing table, the gate valve is set up in the positioning hole, the connecting hole is opened to the symmetry on the gate valve, the sliding connection between connecting hole and positioning column.

[0012] Through the above technical scheme, the main part of gate valve is inserted into the positioning hole, and multiple positioning columns are respectively penetrated through the corresponding connecting hole, at this time, the vertical positioning of gate valve can be completed.

[0013] The utility model further sets up: the connecting platform and processing table are integrally set up, and the quick fixed mechanism is symmetrically set up.

[0014] The utility model has the advantages as follows:

[0015] The utility model can quickly complete the limit of gate valve sealing surface in horizontal direction and vertical direction through the quick fixed mechanism, ensure that the gate valve sealing surface always keeps in the predetermined position during welding or other processing, avoid the processing deviation caused by displacement or error, thereby improving the precision of gate valve sealing surface processing, ensuring the product quality, not only convenient and fast operation, but also improving the production and processing efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 It is the three-dimensional structure diagram of the utility model;

[0017] Fig. 2 It is the internal structure diagram of the utility model quick fixing mechanism;

[0018] Fig. 3 It is the sectional structure diagram of the utility model processing platform.

[0019] In the drawing: 1, fixed base; 11, mounting base; 12, connecting table; 13, processing platform; 14, positioning column; 15, inner groove; 16, positioning hole; 2, gate valve; 21, connecting hole; 3, quick fixing mechanism; 30, limit clamping jaw; 31, limit connecting rod; 32, mounting plate; 33, fixed plate; 34, limit column; 35, return spring; 36, limit cover; 37, extrusion block; 38, connecting block; 39, limit slot. DETAILED DESCRIPTION

[0020] The preferred embodiments of the utility model are described in detail below with reference to the drawings, so that the advantages and features of the utility model can be more easily understood by those skilled in the art, and the protection scope of the utility model is more clearly and explicitly defined.

[0021] Please refer to Figs. 1-3 A kind of gate valve sealing surface processing device, including fixed base 1, fixed base 1 upper surface installation setting has mounting base 11, mounting base 11 upper end is fixedly installed with connecting table 12, connecting table 12 upper end is fixedly installed with processing platform 13 lower end, processing platform 13 is symmetrically fixedly connected with positioning column 14, and processing platform 13 upper end is provided with gate valve 2, connecting table 12 is installed in setting with quick fixing mechanism 3, and connecting table 12 is symmetrically provided with inner groove 15, the setting of quick fixing mechanism 3 ensures that gate valve 2 sealing surface always keeps in predetermined position during welding or other processing process, avoids the processing deviation caused by displacement or error, to improve the precision of gate valve 2 sealing surface processing.

[0022] Quick fixing mechanism 3 includes limit clamping jaw 30 between the sliding connection of connecting table 12, limit clamping jaw 30 is fixedly connected with limit connecting rod 31 away from one end of gate valve 2, connecting table 12 is symmetrically provided with inner groove 15 in, and connecting table 12 two sides are symmetrically provided with limit slot 39.

[0023] Connecting table 12 two sides are symmetrically fixedly installed with limit cover 36, and limit cover 36 is slidably connected with extrusion block 37, and extrusion block 37 one end is fixedly installed with connecting block 38, and connecting block 38 one side is provided with anti-skid line.

[0024] A mounting plate 32 is provided on one side of the limiting groove 39, and the mounting plate 32 is fixedly connected to the limiting rod 31. A fixing plate 33 is provided in the limiting groove 39 on the other side, and the fixing plate 33 is fixedly installed to the connecting platform 12. Limiting posts 34 are fixedly connected to the mounting plate 32 and the fixing plate 33 respectively. A return spring 35 is fixedly installed between the limiting posts 34. One end of the limiting rod 31 is triangular, and the end of the squeezing block 37 near the limiting rod 31 is wedge-shaped. Pressing the connecting block 38 will squeeze the two limiting claws 30 at the same time, so that the two limiting claws 30 can move up and down at the same time. After releasing the connecting block 38, under the elastic action of the two return springs 35, the two limiting rods 31 will be pushed to reset at the same time, so that the two limiting rods 31 can retract inward at the same time, and then the two limiting rods 31 will fit with the end face of the sealing surface of the gate valve 2, thereby completing the horizontal limiting of the gate valve 2.

[0025] The processing table 13 has a positioning hole 16, and a gate valve 2 is installed in the positioning hole 16. The gate valve 2 has symmetrical connection holes 21. The connection holes 21 are slidably connected to the positioning pins 14. The main body of the gate valve 2 is aligned with the positioning hole 16 and inserted, and multiple positioning pins 14 pass through the corresponding connection holes 21. At this time, the gate valve 2 can complete the vertical positioning. The connecting table 12 and the processing table 13 are integrated, and the quick fixing mechanism 3 is symmetrically arranged.

[0026] In use, by pressing the connecting block 38, the squeezing block 37 simultaneously squeezes the two limiting claws 30, allowing the two limiting claws 30 to move upward and downward simultaneously. This allows the main body of the gate valve 2 to be aligned with the positioning hole 16 and inserted, with multiple positioning pins 14 passing through the corresponding connecting holes 21. At this point, the gate valve 2 is positioned vertically. After the operator releases the connecting block 38, the elastic action of the two return springs 35 simultaneously pushes the two limiting rods 31 to reset, causing the two limiting rods 31 to retract inward simultaneously. This allows the two limiting rods 31 to fit against the end face of the sealing surface of the gate valve 2, thus completing the horizontal limiting of the gate valve 2. At this point, the clamping operation is complete, facilitating subsequent processing of the gate valve 2.

[0027] The above are merely embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A gate valve sealing surface processing device, comprising a fixed base (1), characterized in that: An installation base (11) is installed on the upper surface of the fixed base (1). A connecting platform (12) is fixedly installed on the upper end of the installation base (11). The upper end of the connecting platform (12) is fixedly installed on the lower end of the processing table (13). Positioning columns (14) are symmetrically fixedly connected on the processing table (13). A gate valve (2) is provided on the upper end of the processing table (13). A quick fixing mechanism (3) is installed inside the connecting platform (12). An inner groove (15) is symmetrically opened inside the connecting platform (12).

2. The gate valve sealing surface processing device according to claim 1, characterized in that: The quick-fixing mechanism (3) includes a limiting gripper (30) that is slidably connected to the connecting platform (12). The limiting gripper (30) is fixedly connected to a limiting connecting rod (31) at one end away from the gate valve (2). The connecting platform (12) has symmetrically opened inner grooves (15) and symmetrically opened limiting slots (39) on both sides of the connecting platform (12).

3. The gate valve sealing surface processing device according to claim 2, characterized in that: Limiting covers (36) are symmetrically fixedly installed on both sides of the connecting platform (12). An extrusion block (37) is slidably connected inside the limiting cover (36). A connecting block (38) is fixedly installed at one end of the extrusion block (37). Anti-slip texture is opened on one side of the connecting block (38).

4. The gate valve sealing surface processing device according to claim 3, characterized in that: A mounting plate (32) is provided on one side of the limiting groove (39), and the mounting plate (32) is fixedly connected to the limiting rod (31). A fixing plate (33) is provided in the limiting groove (39) on the other side, and the fixing plate (33) is fixedly installed to the connecting platform (12). Limiting posts (34) are fixedly connected to the mounting plate (32) and the fixing plate (33), and a reset spring (35) is fixedly installed between the limiting posts (34). One end of the limiting rod (31) is triangular, and the squeezing block (37) is wedge-shaped near the end of the limiting rod (31).

5. The gate valve sealing surface processing device according to claim 1, characterized in that: The processing table (13) has a positioning hole (16) and a gate valve (2) is provided in the positioning hole (16). The gate valve (2) has symmetrical connecting holes (21) and the connecting holes (21) are slidably connected to the positioning column (14).

6. The gate valve sealing surface processing device according to claim 1, characterized in that: The connecting platform (12) and the processing platform (13) are integrated, and the quick fixing mechanism (3) is symmetrically arranged.

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