Valve line machining grinding tool finishing mechanism

Abstract

The utility model discloses a valve line machining grinding tool finishing mechanism which comprises a numerical control lathe platform, one end of the upper portion of the numerical control lathe platform is fixedly connected with a main shaft fixing seat, the upper portion of the main shaft fixing seat is fixedly connected with a main shaft adjusting seat, and the upper portion of the main shaft adjusting seat is fixedly connected with a main shaft box. Transverse sliding grooves are formed in the two ends of the upper surface of the main shaft fixing base, and a transverse sliding base is slidably connected to one side of the upper portion of the main shaft fixing base through the two transverse sliding grooves. The transverse sliding seat is additionally arranged on the numerical control lathe platform and matched with the carborundum grinding wheel arranged in the finishing machine box, so that when the working face of the fillet grinding head is scrapped, the carborundum grinding wheel can grind the fillet grinding head again through transverse feeding of the transverse sliding seat and longitudinal feeding movement of the tailstock sliding table, the working face of the fillet grinding head is finished again, and the working face of the fillet grinding head is scrapped. And the working effect can be ensured before the round-corner grinding head is ground until the screw is exposed, and the service life of a single round-corner grinding head can be greatly prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of valve processing equipment, in particular to a valve line processing abrasive tool dressing mechanism. Background Art

[0002] A ball valve is a valve whose opening and closing member (ball) is driven by a valve stem and rotates around the axis of the ball valve. It was introduced 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, electricity, 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 and 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 the valve seat and the valve ball, especially processing the contact surface between the valve ball and the valve seat, that is, the valve line, high technical requirements are required and delicate technical techniques are needed to achieve that when the valve ball and the valve seat are matched, the two are closely matched and not easy to cause leakage. The existing processing equipment dedicated to processing valve seat valve lines can be eliminated by removing the turning tool assembly and using the tail seat to add a rounded corner grinding head. As long as the axis position of the tail seat is initially adjusted, the rounded corner grinding head can be used for grinding. However, the rounded corner grinding head is a consumable part. After a period of work, the rounded corner working surface used for processing will be worn, resulting in a decrease in the accuracy of the processed valve line. The existing solution is to directly replace the grinding head, but because the grinding head is damaged very quickly in large-scale continuous production, frequent shutdowns to replace the grinding head greatly affect work efficiency, and the grinding head is only worn on the working surface, and there is still value in repair. One-time scrapping will also increase the cost of valve seat processing, and there is further room for improvement. 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 valve line machining abrasive tool dressing mechanism to solve the above problem.

[0005] To achieve the above-mentioned purpose, a valve line processing abrasive tool dressing mechanism is provided, comprising a CNC lathe platform, an upper end of the CNC lathe platform is fixedly connected to a spindle fixing seat, an upper portion of the spindle fixing seat is fixedly connected to a spindle adjustment seat, an upper portion of the spindle adjustment seat is fixedly connected to a spindle box, both ends of the upper surface of the spindle fixing seat are provided with transverse sliding grooves, an upper side of the spindle fixing seat is slidably connected to a transverse sliding seat through two transverse sliding grooves, an upper portion of the transverse sliding seat away from the spindle fixing seat is fixedly connected to a dressing chassis, a dressing motor is fixedly connected to the interior of the dressing chassis, an emery grinding wheel is arranged at an output end of the dressing motor, a grinding wheel groove is arranged at a position corresponding to the emery grinding wheel on a side of the dressing chassis close to the spindle box, and a side opening plate is arranged on a top plate at one end of the dressing chassis close to the grinding wheel groove;

[0006] A tailstock slide is slidably connected to the middle part of the end above the CNC lathe platform away from the spindle fixing seat, a sliding tailstock is fixedly connected to the top of the tailstock slide, a tailstock shaft is provided at the end of the sliding tailstock close to the spindle box, a grinding head connecting seat is threadedly connected to the end of the tailstock shaft away from the spindle box, and a rounded corner grinding head is fixedly connected to the end of the grinding head connecting seat away from the tailstock shaft.

[0007] According to the valve line processing mold dressing mechanism, the CNC lathe platform is transmission-connected to the transverse slide through a stepper motor and a precision screw rod below the transverse slide.

[0008] According to the valve line machining mold dressing mechanism, the CNC lathe platform is transmission-connected to the tailstock slide through a stepper motor and a precision screw rod below the tailstock slide.

[0009] According to the valve line processing abrasive tool dressing mechanism, a frame and a grinding wheel mounting seat are provided inside the dressing chassis, the dressing motor is fixedly connected to the dressing chassis through the frame, the grinding wheel mounting seat is rotatably connected to the frame, the diamond grinding wheel is mounted on the transmission shaft of the grinding wheel mounting seat, and the output end of the dressing motor is transmission-connected to the diamond grinding wheel through the grinding wheel mounting seat.

[0010] According to the valve line processing abrasive tool dressing mechanism, the rounded corner grinding head is an existing sand roller on the market, and the center of the rounded corner grinding head is fixedly connected to the grinding head connecting seat by screws.

[0011] According to the valve line processing grinding tool dressing mechanism, the height of the rounded corner grinding head corresponds to the height of the diamond grinding wheel.

[0012] According to the valve line machining mold dressing mechanism, a cooling water pipe is arranged on the top of the spindle box, and the cooling water pipe is a universal bending pipe currently available on the market.

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

[0014] 1. The utility model installs a transverse slide on the CNC lathe platform and cooperates with the diamond grinding wheel arranged inside the dressing machine case. When the working surface of the fillet grinding head is scrapped, through the transverse feed of the transverse slide and the longitudinal feed movement of the tailstock slide, the diamond grinding wheel can polish the fillet grinding head again and re-dress the working surface of the fillet grinding head. Before the fillet grinding head is ground until the screw is exposed, the working effect can be guaranteed, the service life of a single fillet grinding head can be greatly improved, and the practicability of the device is enhanced.

[0015] 2. The utility model uses the method of directly grinding and dressing the fillet grinding head on the CNC lathe platform with a diamond grinding wheel, which can greatly reduce the replacement times, reduce the maintenance time, thereby improving the processing efficiency. The grinding wheel for polishing the valve line subsequently can also process the working surface through this device, improving the versatility of the device and enhancing the practicability of the device.

[0016] The additional aspects and advantages of the utility model will be partly given in the following description, partly will become obvious from the following description, or will be understood through the practice of the utility model. Description of the Drawings

[0017] The following further illustrates the utility model in conjunction with the drawings and embodiments;

[0018] Figure 1 It is a left three-dimensional structural schematic diagram of a valve line processing grinding tool dressing mechanism of the utility model;

[0019] Figure 2 It is a right three-dimensional structural schematic diagram of a valve line processing grinding tool dressing mechanism of the utility model;

[0020] Figure 3 It is a front structural schematic diagram of a valve line processing grinding tool dressing mechanism of the utility model;

[0021] Figure 4 is Figure 3 The enlarged view of part A of

[0022] Legend Explanation:

[0023] 1. CNC lathe platform; 2. Spindle fixed seat; 3. Transverse chute; 4. Spindle adjusting seat; 5. Spindle box; 6. Tailstock slide; 7. Sliding tailstock; 8. Tailstock shaft; 9. Grinding head connecting seat; 10. Fillet grinding head; 11. Transverse slide; 12. Dressing machine case; 13. Dressing motor; 14. Diamond grinding wheel; 15. Grinding wheel groove; 16. Side opening plate. Detailed Embodiment

[0024] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model 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 the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0025] Reference Figures 1 - 4 The embodiment of the utility model provides a valve line processing mold dressing mechanism, including a CNC lathe platform 1, a spindle fixing seat 2 is fixedly connected to the upper end of the CNC lathe platform 1, a spindle adjustment seat 4 is fixedly connected to the upper side of the spindle fixing seat 2, a spindle box 5 is fixedly connected to the upper side of the spindle adjustment seat 4, a cooling water pipe is arranged on the top of the spindle box 5, and the cooling water pipe is a universal bending pipe available on the market, transverse grooves 3 are provided at both ends of the upper surface of the spindle fixing seat 2, a transverse slide 11 is slidably connected to the upper side of the spindle fixing seat 2 through two transverse grooves 3, the CNC lathe platform 1 is connected to the transverse slide 11 through a stepping motor and a precision screw rod at the bottom of the transverse slide 11, and the transverse slide 11 is away from A dressing case 12 is fixedly connected to the top of one end of the spindle fixing seat 2, a dressing motor 13 is fixedly connected to the inside of the dressing case 12, a diamond grinding wheel 14 is arranged at the output end of the dressing motor 13, a frame and a grinding wheel mounting seat are arranged inside the dressing case 12, the dressing motor 13 is fixedly connected to the dressing case 12 through the frame, the grinding wheel mounting seat is rotatably connected to the frame, the diamond grinding wheel 14 is mounted on the transmission shaft of the grinding wheel mounting seat, the output end of the dressing motor 13 is transmission-connected to the diamond grinding wheel 14 through the grinding wheel mounting seat, a grinding wheel groove 15 is provided at a position corresponding to the diamond grinding wheel 14 on one side of the dressing case 12 close to the spindle case 5, and a side opening plate 16 is provided on the top plate of one end of the dressing case 12 close to the grinding wheel groove 15;

[0026] A tailstock slide 6 is slidably connected to the middle part of the end above the CNC lathe platform 1 away from the spindle fixed seat 2. The CNC lathe platform 1 is transmission connected to the tailstock slide 6 below the tailstock slide 6 through a stepping motor and a precision screw. A sliding tailstock 7 is fixedly connected to the top of the tailstock slide 6. A tailstock shaft 8 is provided at the end of the sliding tailstock 7 close to the spindle box 5. A grinding head connecting seat 9 is threadedly connected to the end of the tailstock shaft 8 away from the spindle box 5. A rounded corner grinding head 10 is fixedly connected to the end of the grinding head connecting seat 9 away from the tailstock shaft 8. The rounded corner grinding head 10 is a sand roller currently available on the market. The center of the rounded corner grinding head 10 is fixedly connected to the grinding head connecting seat 9 by a screw. The height of the rounded corner grinding head 10 corresponds to the height of the diamond grinding wheel 14. Example

[0027] The difference between this embodiment and the embodiment is that: a tailstock slide 6 is slidably connected to the middle part of the end above the CNC lathe platform 1 away from the spindle fixed seat 2, and the CNC lathe platform 1 is transmission connected to the tailstock slide 6 below the tailstock slide 6 through a stepping motor and a precision screw rod; a sliding tailstock 7 is fixedly connected to the top of the tailstock slide 6, and a tailstock shaft 8 is provided at the end of the sliding tailstock 7 close to the spindle box 5; a grinding head connecting seat 9 is threadedly connected to the end of the tailstock shaft 8 away from the spindle box 5, and a grinding wheel for polishing the valve line is fixedly connected to the end of the grinding head connecting seat 9 away from the tailstock shaft 8. The grinding wheel for polishing the valve line is a polishing grinding wheel currently available on the market. The center of the grinding wheel for polishing the valve line is fixedly connected to the grinding head connecting seat 9 by screws. The height of the grinding wheel for polishing the valve line corresponds to the height of the diamond grinding wheel 14. The grinding wheel for polishing the valve line subsequently can also be used to process the working surface of the equipment, thereby improving the versatility of the equipment without the need to purchase special matching grinding wheels.

[0028] Working principle: The utility model adds a transverse slide 11 to the CNC lathe platform 1, and cooperates with the diamond grinding wheel 14 set inside the dressing box 12. When the working surface of the rounded corner grinding head 10 is scrapped, the transverse feed of the transverse slide 11 and the longitudinal feed of the tailstock slide 6 form an arc trajectory, so that the diamond grinding wheel 14 can grind the rounded corner grinding head 10 again and re-trim the working surface of the rounded corner grinding head 10. Before the rounded corner grinding head 10 is ground to expose the screws, the working effect can be guaranteed, which can greatly improve the service life of a single rounded corner grinding head 10. In addition, the method of grinding and trimming the rounded corner grinding head 10 directly in the CNC lathe platform 1 with the diamond grinding wheel 14 can greatly reduce the number of replacements, reduce maintenance time, and thus improve processing efficiency. The grinding wheel for polishing the valve line later can also be used to process the working surface of the equipment, thereby improving the versatility of the equipment.

[0029] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A valve line processing abrasive tool dressing mechanism, comprising a numerically controlled lathe platform (1), characterized in that: The upper end of the CNC lathe platform (1) is fixedly connected to a spindle fixing seat (2), the upper end of the spindle fixing seat (2) is fixedly connected to a spindle adjustment seat (4), the upper end of the spindle adjustment seat (4) is fixedly connected to a spindle box (5), both ends of the upper surface of the spindle fixing seat (2) are provided with transverse sliding grooves (3), the upper side of the spindle fixing seat (2) is slidably connected to a transverse sliding seat (11) through two transverse sliding grooves (3), and the transverse sliding seat (11) is away from A dressing case (12) is fixedly connected to the top of one end of the spindle fixing seat (2); a dressing motor (13) is fixedly connected to the inside of the dressing case (12); a diamond grinding wheel (14) is arranged at the output end of the dressing motor (13); a grinding wheel groove (15) is provided at a position corresponding to the diamond grinding wheel (14) on one side of the dressing case (12) close to the spindle case (5); and a side opening plate (16) is provided on the top plate of one end of the dressing case (12) close to the grinding wheel groove (15); A tailstock slide (6) is slidably connected to the middle of one end of the CNC lathe platform (1) away from the spindle fixed seat (2); a sliding tailstock (7) is fixedly connected to the tailstock slide (6); a tailstock shaft (8) is provided at one end of the sliding tailstock (7) close to the spindle box (5); a grinding head connecting seat (9) is threadedly connected to one end of the tailstock shaft (8) away from the spindle box (5); and a rounded corner grinding head (10) is fixedly connected to one end of the grinding head connecting seat (9) away from the tailstock shaft (8).

2. The dressing mechanism for a valve line processing abrasive tool according to claim 1, characterized in that, The CNC lathe platform (1) is transmission-connected to the transverse slide (11) below the transverse slide (11) via a stepping motor and a precision lead screw.

3. The dressing mechanism for a valve line processing abrasive tool according to claim 1, characterized in that, The CNC lathe platform (1) is transmission-connected to the tailstock slide (6) below the tailstock slide (6) via a stepping motor and a precision screw rod.

4. The dressing mechanism for a valve line processing abrasive tool according to claim 1, characterized in that, A frame and a grinding wheel mounting seat are arranged inside the dressing machine box (12); the dressing motor (13) is fixedly connected to the dressing machine box (12) via the frame; the grinding wheel mounting seat is rotatably connected to the frame; the diamond grinding wheel (14) is mounted on a transmission shaft of the grinding wheel mounting seat; and the output end of the dressing motor (13) is drivingly connected to the diamond grinding wheel (14) via the grinding wheel mounting seat.

5. A dressing mechanism for a valve line processing abrasive tool according to claim 1, characterized in that, The rounded corner grinding head (10) is a sand roller currently available on the market, and the center of the rounded corner grinding head (10) is fixedly connected to the grinding head connecting seat (9) via screws.

6. The dressing mechanism of a valve line processing grinding tool according to claim 1, characterized in that, The height of the rounded corner grinding head (10) corresponds to the height of the diamond grinding wheel (14).

7. A dressing mechanism for a valve line processing abrasive tool according to claim 1, characterized in that, A cooling water pipe is arranged on the top of the spindle box (5), and the cooling water pipe is a universal bending pipe currently available on the market.

Images