Inner wall polishing device for valve body production

Abstract

The utility model discloses an inner wall polishing device for valve body production, which is characterized in that a spindle box is fixedly mounted at the left end of a base, a pneumatic chuck is rotatably mounted on the spindle box through a first rotating shaft, a guide rail is further fixedly mounted at the upper end of the base, a movable frame is slidably mounted on the guide rail, a through groove is formed in the left end of a support rod, and the movable frame is slidably mounted on the through groove. A first through hole is formed in the portion, at the right end of the through groove, of the supporting rod, the paired sliding blocks are installed in the through groove in a sliding mode and located at the two ends of the through groove respectively, threaded through holes are formed in the sliding blocks, and one end of the double-thread screw is rotatably installed on the portion, on the left side of the through groove, of the supporting rod. The valve body inner wall grinding device has the advantages that the requirement for grinding the inner walls of valve bodies with different inner diameters is met, and the grinding efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of valve production, in particular to the technical field of an inner wall grinding device for valve body production. Background Art

[0002] The valve is an important component for controlling the flow of media on industrial pipelines. It can be used to control the flow of various types of fluids such as air, water, steam, various corrosive media, mud, oil, liquid metal and radioactive media. The valve is mainly composed of three parts: valve body, opening and closing mechanism and valve cover. It is widely used because of its easy installation and good opening and closing, adjustment and throttling effects. The valve body of the valve needs to be polished during processing and manufacturing to make its inner and outer walls smooth and meet the standards for use. The inner wall of the pipeline is smooth, and the friction resistance between the fluid and the pipeline wall during the flow process is small, thereby reducing the resistance loss along the way. On the contrary, when the inner wall of the pipeline is rough, the friction resistance between the fluid and the pipeline wall will increase, resulting in an increase in the resistance loss along the way.

[0003] Most of the existing valve body inner wall grinding devices can only meet the needs of valve body grinding of a certain diameter, and cannot be changed according to the size of the inner diameter of the valve body, making the adaptability and practicality of the existing valve body inner wall grinding devices low. In addition, since it cannot be adjusted according to the inner diameter of the valve body, the grinding device cannot better adapt to the inner wall of the valve body, resulting in inadequate grinding of the inner wall of the valve body, resulting in poor grinding effect and affecting the overall grinding efficiency. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides an inner wall grinding device for valve body production, which realizes rapid positioning and grinding of the inner wall of the valve body, and can be adjusted according to the inner diameter of the valve body, greatly improving work efficiency and meeting the needs of large-scale production.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] The inner wall grinding device for valve body production includes a base, a pneumatic chuck and a guide grinding mechanism, wherein a spindle box is fixedly installed on the left end of the base, and the pneumatic chuck is rotatably installed on the spindle box via a first rotating shaft, and a guide rail is also fixedly installed on the upper end of the base, and a movable frame is slidably installed on the guide rail, and the guide grinding mechanism includes a support rod, a slider, a double-headed screw, a guide grinding wheel mechanism and a connecting frame, a through groove is opened on the left end of the support rod, a first through hole is opened on the support rod at the right end of the through groove, and the paired sliders are respectively slidably installed in the through groove and are respectively located at both ends of the through groove, and a threaded through hole is opened in the slider, one end of the double-headed screw is rotatably installed on the support rod on the left side of the through groove, and the other end passes through the threaded through hole and the first through hole and is rotatably installed on the support rod. The thread symmetry center of the double-headed screw is at the center of the through groove, and the upper and lower ends of the through groove center are respectively fixedly installed with guide cylinders, the guided grinding wheel mechanism includes a wheel groove, a guide wheel, a grinding wheel and a motor, the guide wheel and the grinding wheel are respectively rotatably installed in the wheel groove, the motor is fixedly installed at the lower end of the wheel groove, the output shaft of the motor is transmission connected with the grinding wheel, the paired guided grinding wheel mechanisms are respectively installed in the guide cylinders via the motors, one end of the paired connecting frames is movably hinged on the slider, and the other end is movably hinged on the wheel groove, the guided grinding wheel mechanisms are arranged in pairs up and down, the guided grinding mechanism is fixedly installed on the left side of the movable frame via a support rod, the double-headed screw extends to the right out of the movable frame, and a rotating handle is fixedly installed at its end.

[0007] Preferably, the pneumatic chuck and the guide grinding mechanism are located on the same horizontal line.

[0008] Preferably, the grinding surface of the grinding wheel is higher than that of the guide wheel.

[0009] Preferably, a fixing seat is fixedly mounted on the right end of the base, a hydraulic cylinder is fixedly mounted on the fixing seat, and a telescopic rod of the hydraulic cylinder is fixedly connected to the movable frame.

[0010] Preferably, the output shaft of the motor is transmission-connected to the grinding wheel via a helical gear set.

[0011] The beneficial effects that can be achieved by the utility model using the above technical solution are:

[0012] 1. The guide grinding mechanism is fixedly installed on the left side of the movable frame through a support rod. A guide grinding wheel mechanism symmetrically arranged on the guide grinding mechanism is provided. The guide grinding wheel mechanism can be adjusted according to the inner diameter of the valve body, thereby realizing the inner wall grinding needs of valve bodies with different inner diameters.

[0013] 2. By rotating the guide wheel and the grinding wheel and installing them in the wheel groove respectively, and the grinding surface of the grinding wheel is higher than the guide wheel, the distance between the grinding wheel and the guide wheel is the designed grinding amount. It is only necessary to adjust the guided grinding wheel mechanism until the guide wheel contacts the inner wall of the valve to determine the precise grinding amount, which greatly improves the grinding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a structural schematic diagram of the guiding grinding mechanism in the utility model;

[0016] Figure 3 It is a structural schematic diagram of the guided grinding wheel mechanism in the utility model;

[0017] Figure 4 It is a schematic diagram of the transmission structure of the motor and the grinding wheel in the utility model.

[0018] 1. Base; 2. Spindle box; 3. Pneumatic chuck; 4. First rotating shaft; 5. Guide rail; 6. Movable frame; 7. Guide grinding mechanism; 8. Support rod; 9. Through groove; 10. Slider; 11. Threaded through hole; 12. Double-headed screw; 14. Guide cylinder; 15. Wheel groove; 16. Guide wheel; 17. Grinding wheel; 18. Motor; 19. Connecting frame; 20. Rotating handle; 23. Fixed seat; 24. Hydraulic cylinder. DETAILED DESCRIPTION

[0019] Example reference Figure 1-4 As shown, the utility model provides an inner wall grinding device for valve body production, including a base 1, a pneumatic chuck 3 and a guide grinding mechanism 7. A spindle box 2 is fixedly installed on the left end of the base 1, and the pneumatic chuck 3 is rotatably installed on the spindle box 2 via a first rotating shaft 4. A guide rail 5 is also fixedly installed on the upper end of the base 1, and a movable frame 6 is slidably installed on the guide rail 5.

[0020] The pneumatic chuck 3 and the guided grinding mechanism 7 are located on the same horizontal line. The guided grinding mechanism 7 includes a support rod 8, a slider 10, a double-headed screw 12, a guided grinding wheel mechanism and a connecting frame 19. A through slot 9 is provided at the left end of the support rod 8. A first through hole is provided on the support rod 8 at the right end of the through slot 9. The paired sliders 10 are slidably installed in the through slot 9 and are respectively located at both ends of the through slot 9. A threaded through hole 11 is provided in the slider 10. One end of the double-headed screw 12 is rotatably installed on the support rod 8 on the left side of the through slot 9, and the other end passes through the threaded through hole 11 and the first through hole 11 respectively. The through hole is rotatably mounted on the support rod 8, the thread symmetry center of the double-headed screw 12 is at the center of the through slot 9, and the upper and lower ends of the center of the through slot 9 are respectively fixedly mounted with a guide cylinder 14, and the guide grinding wheel mechanism includes a wheel groove 15, a guide wheel 16, a grinding wheel 17 and a motor 18, and the guide wheel 16 and the grinding wheel 17 are respectively rotatably mounted in the wheel groove 15, and the grinding surface of the grinding wheel 17 is higher than the guide wheel 16, and the spacing between the grinding wheel 17 and the guide wheel 16 is the designed grinding amount, and the guide grinding wheel mechanism only needs to be adjusted until the guide wheel 16 contacts the inner wall of the valve, that is, the precise grinding is determined. The grinding efficiency is greatly improved. The motor 18 is fixedly mounted at the lower end of the wheel groove 15. The output shaft of the motor 18 is connected to the grinding wheel 17 through a bevel gear set 25. The paired guided grinding wheel mechanisms are respectively installed in the guide cylinder 14 through the motor 18. One end of the paired connecting frame 19 is movably hinged on the slider 10, and the other end is movably hinged on the wheel groove 15. The guided grinding wheel mechanisms are arranged in pairs up and down. The guided grinding mechanism 7 is fixedly mounted on the left side of the movable frame 6 through the support rod 8. The double-headed screw 12 extends to the right out of the movable frame 6, and A rotating handle 20 is fixedly installed at its end, and the guided grinding wheel mechanism is adjusted according to the inner diameter of the valve body to realize the grinding of the inner wall of valve bodies with different inner diameters. A fixed seat 23 is fixedly installed at the right end of the base 1, and a hydraulic cylinder 24 is fixedly installed on the fixed seat 23. The telescopic rod of the hydraulic cylinder 24 is fixedly connected to the movable frame 6. A spindle motor is arranged in the spindle box 2, and the spindle motor is transmission-connected to the first rotating shaft 4. In this way, rapid positioning and grinding of the wall of the valve body can be realized, and it can be adjusted according to the inner diameter of different valve bodies, which greatly improves the work efficiency and meets the needs of large-scale production.

Claims

1. The inner wall grinding device for valve body production is characterized by: The invention comprises a base (1), a pneumatic chuck (3) and a guide grinding mechanism (7), wherein a spindle box (2) is fixedly mounted on the left end of the base (1), the pneumatic chuck (3) is rotatably mounted on the spindle box (2) via a first rotating shaft (4), a guide rail (5) is fixedly mounted on the upper end of the base (1), a movable frame (6) is slidably mounted on the guide rail (5), and the guide grinding mechanism (7) comprises a support rod (8), a slider (10), a double-headed screw (12), a guide grinding wheel mechanism and a connecting frame (19). ), a through slot (9) is formed at the left end of the support rod (8), a first through hole is formed on the support rod (8) at the right end of the through slot (9), the paired sliders (10) are slidably mounted in the through slots (9) and are respectively located at the two ends of the through slots (9), a threaded through hole (11) is formed in the sliders (10), one end of the double-headed screw (12) is rotatably mounted on the support rod (8) at the left side of the through slot (9), and the other end thereof passes through the threaded through hole (11) and the first through hole and is rotatably mounted on the support rod (8), the double-headed screw (12) The thread symmetry center of the head screw (12) is at the center of the through groove (9), and the upper and lower ends of the center of the through groove (9) are respectively fixedly mounted with guide cylinders (14). The guide grinding wheel mechanism comprises a wheel groove (15), a guide wheel (16), a grinding wheel (17) and a motor (18). The guide wheel (16) and the grinding wheel (17) are respectively rotatably mounted in the wheel groove (15), and the motor (18) is fixedly mounted at the lower end of the wheel groove (15). The output shaft of the motor (18) is drivingly connected to the grinding wheel (17). The paired guided grinding wheel mechanisms are respectively installed in the guide cylinder (14) via the motor (18), one end of the paired connecting frame (19) is movably hingedly installed on the slider (10), and the other end is movably hingedly installed on the wheel groove (15), the guided grinding wheel mechanisms are arranged in pairs up and down, the guided grinding mechanism (7) is fixedly installed on the left side of the movable frame (6) via the support rod (8), the double-headed screw (12) extends to the right outside the movable frame (6), and a rotating handle (20) is fixedly installed at its end.

2. The inner wall grinding device for valve body production according to claim 1, characterized in that: The pneumatic chuck (3) and the guide grinding mechanism (7) are located on the same horizontal line.

3. The inner wall grinding device for valve body production according to claim 1 or 2, characterized in that: The grinding surface of the grinding wheel (17) is higher than that of the guide wheel (16).

4. The inner wall grinding device for valve body production according to claim 1 or 2, characterized in that: A fixed seat (23) is fixedly mounted on the right end of the base (1), a hydraulic cylinder (24) is fixedly mounted on the fixed seat (23), and a telescopic rod of the hydraulic cylinder (24) is fixedly connected to the movable frame (6).

5. The inner wall grinding device for valve body production according to claim 1 or 2, characterized in that: The output shaft of the motor (18) is transmission-connected to the grinding wheel (17) via a helical gear set (25).

Images