Oblique angle adjusting mechanism for machining ball valve seat

Abstract

The utility model discloses an oblique angle adjusting mechanism for processing a ball valve seat, which comprises a numerical control lathe platform, a main shaft fixing seat is fixedly connected with one end above the numerical control lathe platform, a main shaft adjusting seat is arranged above the main shaft fixing seat, a main shaft box is arranged above the main shaft adjusting seat, and the main shaft fixing seat is fixedly connected with the main shaft box. Transverse sliding grooves are formed in the two ends of the main shaft fixing base, and fixing screw holes are formed in the positions, corresponding to one ends of the two transverse sliding grooves, of the main shaft adjusting base. The spindle fixing seat and the spindle adjusting seat are arranged between the numerical control lathe platform and the spindle box, and are matched with the arc-shaped mounting groove and the arc-shaped adjusting groove, so that the axis angle of the spindle box can be adjusted by adjusting the positions of the mounting bolts and the adjusting screws in the arc-shaped mounting groove and the arc-shaped adjusting groove; and therefore, bevel angle machining of the valve seat can be realized under the condition that the tailstock is not adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of valve processing equipment, in particular to a bevel angle adjustment mechanism for processing a ball valve seat. Background Art

[0002] A ball valve is a valve in which the opening and closing member (ball) is driven by the valve stem and rotates around the axis of the ball valve. It came out in the 1950s. With the rapid development of science and technology, the continuous improvement of production technology and product structure, it has rapidly developed into a major valve type in just 40 years. In my country, ball valves are widely used in oil refining, long-distance pipelines, chemical industry, papermaking, pharmaceuticals, water conservancy, electric power, municipal administration, steel and other industries, and occupy a pivotal position in the national economy. It has a 90-degree rotation action, and the plug body is a sphere with a circular through hole or channel passing through its axis. It is mainly used to cut off, distribute and change the flow direction of the medium in the pipeline. It only needs to be rotated 90 degrees and a very small torque to close tightly, and is most suitable for use as a switch or cut-off valve.

[0003] The contact surface between the valve ball and the valve seat is generally called the valve line, which is an important structure to ensure the sealing of the valve ball and the valve seat. Therefore, when producing and processing valve seats and valve balls, especially when processing the contact surface between the valve ball and the valve seat, that is, the valve line, high technical requirements are required and sophisticated technical techniques are needed to ensure that when the valve ball and the valve seat are matched, the two are tightly matched and not prone to leakage. The existing processing equipment dedicated to processing valve seats and valve lines can eliminate the turning tool assembly and use a tail seat to add a rounded corner grinding head. As long as the axis position of the tail seat is initially debugged, the rounded corner grinding head can be used for grinding. However, sometimes some valve seats also need to beveled. Due to the small batch size, it is not worth purchasing special equipment. A bevel adjustment mechanism is required to enable the processing equipment for processing valve seats and valve lines to not only perform rounded corners, but also offset the main shaft when necessary to perform bevel processing on the valve seat. Utility Model Content

[0004] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art and to provide a bevel adjustment mechanism for ball valve seat processing, which solves the above problem.

[0005] To achieve the above-mentioned purpose, a bevel adjustment mechanism for ball valve seat processing is provided, comprising a CNC lathe platform, wherein one upper end of the CNC lathe platform is fixedly connected to a spindle fixing seat, a spindle adjustment seat is provided above the spindle fixing seat, a spindle box is provided above the spindle adjustment seat, transverse grooves are provided at both ends of the spindle fixing seat, the spindle adjustment seat is provided with fixing screw holes at positions corresponding to one end of the two transverse grooves, and fixing screws are provided inside the two fixing screw holes;

[0006] An arc-shaped mounting groove is provided on one side of the spindle box in the upper middle part of the spindle adjustment seat, a bolt groove is provided on the lower end of the spindle box near the output end, a mounting hole is provided at a position corresponding to the arc-shaped mounting groove in the lower middle part of the bolt groove, a mounting bolt is provided inside the mounting hole, an arc adjustment groove is provided on the upper side of the spindle adjustment seat, a connecting seat is fixedly connected to the position corresponding to the arc adjustment groove on one side of the spindle box near the bolt groove, a connecting bolt is provided at the center of the connecting seat, a bevel adjustment block is connected above the arc adjustment groove, and an adjusting screw is provided in the middle of the bevel adjustment block.

[0007] According to the bevel angle adjustment mechanism for ball valve seat processing, the transverse sliding groove, arc-shaped installation groove and circular arc adjustment groove are all inverted T-shaped grooves.

[0008] According to the described bevel adjustment mechanism for ball valve seat processing, an adjustment shaft is fixedly connected below the central axis of one end of the bottom of the spindle box close to the output end, an adjustment hole is provided above the spindle adjustment seat at a position corresponding to the adjustment shaft, and a slider is fixedly connected at a position corresponding to the arc adjustment groove on the bottom of the spindle box.

[0009] According to the bevel angle adjustment mechanism for ball valve seat processing, the arc-shaped installation groove and the circular arc adjustment groove are concentric circles, and the center of the concentric circle corresponds to the position of the adjustment hole.

[0010] According to the bevel adjustment mechanism for ball valve seat processing, one end of the top of the bevel adjustment block is rotatably connected to a connecting column, and one end of the connecting bolt away from the connecting seat passes through the connecting column and is threadedly connected to the connecting column.

[0011] According to the bevel angle adjustment mechanism for ball valve seat processing, the bottom of the adjustment screw passes through the bevel angle adjustment block and is threadedly connected to the arc adjustment groove.

[0012] According to the bevel adjustment mechanism for ball valve seat processing, the lower portion of the spindle adjustment seat is fixedly connected to the spindle fixing seat through the cooperation of two fixing screws and two transverse sliding grooves.

[0013] The above solution has at least one of the following beneficial effects:

[0014] 1. The utility model sets a spindle fixing seat and a spindle adjustment seat between the CNC lathe platform and the spindle box, and cooperates with the arc-shaped mounting groove and the circular arc adjustment groove. The axis angle of the spindle box can be adjusted by adjusting the positions of the mounting bolts and the adjusting screws in the arc-shaped mounting groove and the circular arc adjustment groove, thereby realizing the bevel processing of the valve seat without adjusting the tail seat, thereby enhancing the practicality of the device.

[0015] 2. The utility model is provided with a transverse slide groove between the spindle fixing seat and the spindle adjustment seat. With the corresponding fixing screws, the transverse position between the spindle adjustment seat and the spindle box can be adjusted to avoid the valve seat position from shifting when the axis is adjusted, thereby enhancing the practicality of the device.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. 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 This is a schematic diagram of the left side three-dimensional structure of a bevel adjustment mechanism for ball valve seat processing according to the present invention;

[0019] Figure 2 This is a schematic diagram of the right side three-dimensional structure of a bevel adjustment mechanism for ball valve seat machining according to the present invention;

[0020] Figure 3 This is a schematic diagram of the three-dimensional structure of a spindle adjustment seat of a bevel adjustment mechanism for ball valve seat processing in the utility model;

[0021] Figure 4 for Figure 1 Enlarged view of point A.

[0022] Legend:

[0023] 1. CNC lathe platform; 2. Spindle fixing seat; 3. Horizontal slide; 4. Spindle adjustment seat; 5. Arc mounting slot; 6. Arc adjustment slot; 7. Fixing screw hole; 8. Fixing screw; 9. Spindle box; 10. Bolt slot; 11. Mounting hole; 12. Mounting bolt; 13. Connecting seat; 14. Connecting bolt; 15. Bevel adjustment block; 16. Adjusting screw. DETAILED DESCRIPTION

[0024] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0025] Reference Figure 1-4The embodiment of the utility model provides a bevel adjustment mechanism for processing a ball valve seat, including a CNC lathe platform 1, wherein one end of the upper end of the CNC lathe platform 1 is fixedly connected to a spindle fixing seat 2, a spindle adjusting seat 4 is arranged above the spindle fixing seat 2, and a spindle box 9 is arranged above the spindle adjusting seat 4. Both ends of the spindle fixing seat 2 are provided with transverse sliding grooves 3, and the spindle adjusting seat 4 is provided with fixing screw holes 7 at positions corresponding to one end of the two transverse sliding grooves 3. Fixing screws 8 are arranged inside the two fixing screw holes 7. The lower part of the spindle adjusting seat 4 is fixedly connected to the spindle fixing seat 2 through the cooperation of two fixing screws 8 and the two transverse sliding grooves 3. The transverse sliding grooves 3 and the corresponding fixing screws 8 arranged between the spindle fixing seat 2 and the spindle adjusting seat 4 can be adjusted by adjusting the spindle adjusting seat 4 to avoid the displacement of the work station position of the valve seat to be processed when the axis is adjusted.

[0026] An arc-shaped mounting groove 5 is provided on one side of the spindle box 9 in the upper middle part of the spindle adjustment seat 4, a bolt groove 10 is provided at one end of the spindle box 9 near the output end, a mounting hole 11 is provided at the lower middle part of the bolt groove 10 at a position corresponding to the arc-shaped mounting groove 5, a mounting bolt 12 is provided inside the mounting hole 11, an arc-shaped adjusting groove 6 is provided on the outer side of the arc-shaped mounting groove 5 above the spindle adjustment seat 4, the arc-shaped mounting groove 5 and the arc-shaped adjusting groove 6 are concentric circles, and the center of the concentric circle is relative to the position of the adjusting hole. The bottom of the spindle box 9 is fixedly connected to the position corresponding to the arc adjustment groove 6. The horizontal slide groove 3, the arc mounting groove 5 and the arc adjustment groove 6 are all inverted T-shaped grooves. A connecting seat 13 is fixedly connected to the position corresponding to the arc adjustment groove 6 on one side of the bottom of the spindle box 9 near the bolt groove 10. A connecting bolt 14 is provided at the center of the connecting seat 13. A bevel adjustment block 15 is connected to the top of the arc adjustment groove 6. One end of the top of the bevel adjustment block 15 is rotatably connected to the connecting column, and the connecting bolt 14 is away from One end of the connecting seat 13 passes through the connecting column and is threadedly connected to the connecting column. An adjusting screw 16 is provided in the middle of the bevel adjustment block 15. The bottom of the adjusting screw 16 passes through the bevel adjustment block 15 and is threadedly connected to the arc adjustment groove 6. When necessary, fine debugging can be performed by rotating the connecting bolt 14. An adjusting shaft is fixedly connected below the central axis of one end of the bottom of the spindle box 9 near the output end. An adjusting hole is provided above the spindle adjustment seat 4 at a position corresponding to the adjusting shaft. A slider embedded in the arc mounting groove 5 and the arc adjustment groove 6 is fixedly connected at a position corresponding to the arc mounting groove 5 and the arc adjustment groove 6 in the middle of the lower part of the spindle box 9. When the bevel adjustment is required, a spindle fixing seat 2 and a spindle adjustment seat 4 are set between the CNC lathe platform 1 and the spindle box 9. In conjunction with the arc mounting groove 5 and the arc adjustment groove 6, the axis angle of the spindle box 9 can be adjusted by adjusting the mounting bolts 12 and the adjusting screws 16 in the arc mounting groove 5 and the arc adjustment groove 6 according to the rotation of the spindle box 9 relative to the adjusting hole.

[0027] Working principle: When the bevel angle adjustment is required, the utility model sets a spindle fixing seat 2 and a spindle adjustment seat 4 between the CNC lathe platform 1 and the spindle box 9, and cooperates with the arc-shaped mounting groove 5 and the circular arc adjustment groove 6. The axis angle of the spindle box 9 can be adjusted by adjusting the mounting bolts 12 and the adjusting screws 16 in the arc-shaped mounting groove 5 and the circular arc adjustment groove 6. The horizontal slide groove 3 and the corresponding fixing screws 8 set between the spindle fixing seat 2 and the spindle adjustment seat 4 can be adjusted by adjusting the spindle adjustment seat 4 to avoid the work station position of the valve seat to be processed from being offset when the axis is adjusted, and the bevel angle processing of the valve seat can be achieved without adjusting the tail seat.

[0028] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A bevel adjustment mechanism for ball valve seat machining, comprising a CNC lathe platform (1), characterized in that: The upper end of the CNC lathe platform (1) is fixedly connected to a spindle fixing seat (2), a spindle adjustment seat (4) is provided above the spindle fixing seat (2), a spindle box (9) is provided above the spindle adjustment seat (4), both ends of the spindle fixing seat (2) are provided with transverse sliding grooves (3), the spindle adjustment seat (4) is provided with fixing screw holes (7) at positions corresponding to one end of the two transverse sliding grooves (3), and fixing screws (8) are provided inside the two fixing screw holes (7); An arc-shaped mounting groove (5) is provided in the upper middle portion of the spindle adjustment seat (4) on one side of the spindle box (9), a bolt groove (10) is provided at one end of the lower spindle box (9) close to the output end, a mounting hole (11) is provided at a position corresponding to the arc-shaped mounting groove (5) in the lower middle portion of the bolt groove (10), a mounting bolt (12) is provided inside the mounting hole (11), an arc-shaped adjusting groove (6) is provided above the spindle adjustment seat (4) on the outer side of the arc-shaped mounting groove (5), a connecting seat (13) is fixedly connected to a position corresponding to the arc-shaped adjusting groove (6) on one side of the lower spindle box (9) close to the bolt groove (10), a connecting bolt (14) is provided at the center of the connecting seat (13), an angle adjustment block (15) is connected above the arc-shaped adjusting groove (6), and an adjusting screw (16) is provided in the middle portion of the angle adjustment block (15).

2. The bevel adjustment mechanism for ball valve seat processing according to claim 1, characterized in that: The transverse sliding groove (3), the arc-shaped installation groove (5) and the circular arc adjustment groove (6) are all inverted T-shaped grooves.

3. The bevel adjustment mechanism for ball valve seat processing according to claim 1, characterized in that: An adjustment shaft is fixedly connected below the central axis of one end of the bottom of the spindle box (9) close to the output end, an adjustment hole is provided above the spindle adjustment seat (4) at a position corresponding to the adjustment shaft, and a slider is fixedly connected at a position of the bottom of the spindle box (9) corresponding to the arc adjustment groove (6).

4. The bevel adjustment mechanism for ball valve seat machining according to claim 3, characterized in that: The arc-shaped installation groove (5) and the circular arc adjustment groove (6) are concentric circles, and the center of the concentric circle corresponds to the position of the adjustment hole.

5. The bevel adjustment mechanism for ball valve seat processing according to claim 1, characterized in that: One end of the top of the bevel adjustment block (15) is rotatably connected to a connecting column, and one end of the connecting bolt (14) away from the connecting seat (13) passes through the connecting column and is threadedly connected to the connecting column.

6. The bevel adjustment mechanism for ball valve seat machining according to claim 1, characterized in that: The bottom of the adjusting screw (16) passes through the bevel adjustment block (15) and is threadedly connected to the arc adjustment groove (6).

7. The bevel adjustment mechanism for ball valve seat machining according to claim 1, characterized in that: The lower portion of the spindle adjustment seat (4) is fixedly connected to the spindle fixing seat (2) through the cooperation of two fixing screws (8) and two transverse sliding grooves (3).

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