Valve cover drilling device

Abstract

The utility model discloses a valve cover drilling device which is characterized in that a first circular groove is formed in a shell, a rotating disc is rotationally installed on the first circular groove through a first rotating shaft, a second circular groove is formed in the rotating disc, and positioning rods distributed in a circumferential mode are fixedly installed on a bottom plate of the second circular groove; the fastening mechanism comprises an L-shaped rotating frame and a fastening screw rod, the L-shaped rotating frame is composed of a second rotating shaft and an installation arm fixedly installed at the upper end of the second rotating shaft, and the fastening screw rod is fixedly installed on the second rotating shaft. The L-shaped rotating frames which are distributed in a circumferential mode are rotationally installed on the side wall of the rotating disc through second rotating shafts respectively, threaded through holes are formed in the tail ends of the installing arms, and the flange piece hole positioning device has the advantages that accurate positioning of each hole in a flange piece is achieved, and production and machining efficiency is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of valve production, in particular to the technical field of a valve cover drilling device for a valve. Background Art

[0002] Valves are important components for controlling the flow of media on industrial pipelines. They 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. Valves are mainly composed of three parts: valve body, opening and closing mechanism, and valve cover. They are widely used because of their easy installation and good opening and closing, regulation, and throttling effects.

[0003] There are usually many flange holes on the valve cover. During batch processing, a benchtop drilling machine is often used to process the flange holes. However, most of the existing drilling machines are single-hole operations. After completing one hole, the valve body needs to be rotated for the second drilling operation. When the valve body is rotated manually for drilling, it is not only time-consuming and laborious, but also difficult to keep the drilling angle consistent each time even if there are prior markings, which can easily lead to drilling positioning errors, thereby affecting the subsequent installation and coordination. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a valve cover drilling device, which not only saves time and effort during the valve cover drilling operation, but also accurately positions each hole, ensures the uniformity of the holes, and meets the needs of large-scale production.

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

[0006] A valve flange drilling device comprises a shell, a turntable, a fastening mechanism, a movable pin, a pedal, a connecting rod and a lifting electric drill, wherein the shell is provided with a first circular groove, the turntable is rotatably mounted on the first circular groove via a first rotating shaft, the turntable is provided with a second circular groove, a circumferentially distributed positioning rods are fixedly mounted on the bottom plate of the second circular groove, the circumferentially distributed positioning holes are also provided on the bottom plate of the second circular groove, the positioning holes correspond to the positioning rods, the fastening mechanism comprises an L-shaped rotating frame and a fastening screw, the L-shaped rotating frame is composed of a second rotating shaft and a mounting arm fixedly mounted on the upper end of the second rotating shaft, the circumferentially distributed L-shaped rotating frames are rotatably mounted on the side walls of the turntable via the second rotating shaft, a threaded through hole is provided at the end of the mounting arm, The fastening screw is meshed and rotatably installed in the threaded through hole, and the fastening screw is fixedly installed with a pressure block through the threaded through hole. A force rod is movably installed on the upper end of the fastening screw. A through hole is opened in the first circular groove, and the movable pin is movably installed on the through hole. The upper end of the movable pin is inserted in the positioning hole corresponding to the turntable. A through groove connected to the interior of the shell is opened at the lower end of the shell, and a spring is fixedly installed on the shell bottom plate inside the through groove. One end of the pedal is movably hinged on the inner wall of the shell, and the other end is fixed on the spring. One end of the connecting rod is movably hinged on the lower end of the movable pin, and the other end is movably hinged on the pedal. The lifting electric drill is fixedly installed on the shell via a bracket, and the drill bit of the lifting electric drill corresponds to the movable pin.

[0007] The beneficial effects that can be achieved by the utility model using the above technical solution are:

[0008] 1. By opening circularly distributed positioning holes on the turntable, a movable pin is provided in the first circular groove. The positioning holes on the turntable are set according to the design requirements. After drilling a hole, the pedal is stepped on and released, and the turntable is turned by hand. When the turntable is at the next positioning hole, the movable pin is inserted into the positioning hole under the action of the spring. In this way, the second flange hole is accurately positioned, realizing the precise positioning of each hole on the flange, and effectively improving the production and processing efficiency.

[0009] 2. Positioning rods distributed in a circle are arranged on the turntable, and the valve cover to be processed is supported and positioned by the positioning rods, so that the drill bit can perform drilling operations conveniently.

[0010] 3. By arranging the fastening mechanisms in a circular distribution on the side wall of the turntable, it is convenient to fix the valve cover to be processed, which can effectively improve the accuracy and consistency of drilling. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the utility model;

[0012] Figure 2 This is a schematic diagram of the structure of the turntable in the utility model;

[0013] Figure 3 It is a schematic diagram of the internal structure of the utility model.

[0014] 1. Shell; 2. First circular groove; 3. Turntable; 4. Second circular groove; 5. Positioning rod; 6. Positioning hole; 7. Fastening mechanism; 8. L-shaped rotating frame; 9. Second rotating shaft; 10. Mounting arm; 11. Threaded through hole; 12. Fastening screw; 13. Pressure block; 14. Force rod; 15. Through hole; 16. Movable pin; 17. Through groove; 18. Spring; 19. Pedal; 20. Connecting rod; 21. Lifting electric drill; 22. Bracket; 23. Drill bit. DETAILED DESCRIPTION

[0015] Example reference Figure 1-3As shown, the utility model provides a valve cover drilling device, including a housing 1, a turntable 3, a fastening mechanism 7, a movable pin 16, a pedal 19, a connecting rod 20 and a lifting electric drill 21, the housing 1 is provided with a first circular groove 2, the turntable 3 is rotatably mounted on the first circular groove 2 via a first rotating shaft, the turntable 3 is provided with a second circular groove 4, the inner wall of the second circular groove 4 corresponds to the valve cover, and the bottom plate of the second circular groove 4 is fixedly provided with positioning rods 5 distributed in a circumference, and the bottom plate of the second circular groove 4 is also provided with positioning holes 6 distributed in a circumference, the positioning holes 6 corresponds to the positioning rod 5, the fastening mechanism 7 includes an L-shaped rotating frame 8 and a fastening screw 12, the L-shaped rotating frame 8 is composed of a second rotating shaft 9 and a mounting arm 10 fixedly mounted on the upper end of the second rotating shaft 9, the L-shaped rotating frame 8 distributed in a circle is respectively rotatably mounted on the side wall of the rotating disk 3 via the second rotating shaft 9, the end of the mounting arm 10 is provided with a threaded through hole 11, the fastening screw 12 is meshed and rotatably mounted in the threaded through hole 11, the fastening screw 12 passes through the threaded through hole 11 and is fixedly mounted with a pressing block 13, the upper end of the fastening screw 12 is movable A force-adding rod 14 is movably installed, a through hole 15 is opened in the first circular groove 2, the movable pin 16 is movably installed in the through hole 15, the upper end of the movable pin 16 is inserted into the positioning hole 6 corresponding to the turntable 3, the lower end of the shell 1 is opened with a through slot 17 connected to the inside of the shell 1, a spring 18 is fixedly installed on the bottom plate of the shell 1 inside the through slot 17, one end of the pedal 19 is movably hinged on the inner wall of the shell 1, and the other end is fixedly installed on the spring 18, one end of the connecting rod 20 is movably hinged on the lower end of the movable pin 16, and the other end is fixedly installed on the spring 18. The movable hinge is installed on the pedal 19, and the positioning holes on the turntable 3 are set according to the design requirements. After drilling a hole, the pedal 19 is stepped on and released, and the turntable 3 is rotated by hand. When the turntable 3 is at the next positioning hole 6, the movable pin 16 is inserted into this positioning hole 6 under the action of the spring 18, so that the second flange hole is accurately positioned, and the precise positioning of each hole on the valve cover is realized, which is also conducive to improving the production and processing efficiency. The lifting electric drill 21 is fixedly installed on the housing 1 via the bracket 22, and the drill bit 23 of the lifting electric drill 21 corresponds to the movable pin 16.

Claims

1. A valve cover drilling device, characterized in that: The invention comprises a housing (1), a rotating disk (3), a fastening mechanism (7), a movable pin (16), a pedal (19), a connecting rod (20) and a lifting electric drill (21), wherein the housing (1) is provided with a first circular groove (2), the rotating disk (3) is rotatably mounted on the first circular groove (2) via a first rotating shaft, the rotating disk (3) is provided with a second circular groove (4), the bottom plate of the second circular groove (4) is fixedly provided with positioning rods (5) distributed in a circumference, and the bottom plate of the second circular groove (4) is also provided with a plurality of positioning rods (5) arranged in a circumferential manner. The rotating disk (3) is provided with positioning holes (6) distributed in a circular pattern, the positioning holes (6) corresponding to the positioning rods (5), the fastening mechanism (7) comprising an L-shaped rotating frame (8) and a fastening screw (12), the L-shaped rotating frame (8) comprising a second rotating shaft (9) and a mounting arm (10) fixedly mounted on the upper end of the second rotating shaft (9), the L-shaped rotating frame (8) distributed in a circular pattern is rotatably mounted on the side wall of the rotating disk (3) via the second rotating shaft (9), and the ends of the mounting arms (10) are opened. A threaded through hole (11) is provided, the fastening screw (12) is meshed and rotatably installed in the threaded through hole (11), the fastening screw (12) passes through the threaded through hole (11) and is fixedly installed with a pressure block (13), the first circular groove (2) is provided with a through hole (15), the movable pin (16) is movably installed in the through hole (15), the upper end of the movable pin (16) is inserted into a positioning hole (6) corresponding to the rotating disk (3), and the lower end of the shell (1) is provided with a positioning pin (6) corresponding to the inner portion of the shell (1). A through slot (17) is connected to the housing (1), a spring (18) is fixedly mounted on the bottom plate of the housing (1) inside the through slot (17), one end of the pedal (19) is movably hingedly mounted on the inner wall of the housing (1), and the other end is fixedly mounted on the spring (18), one end of the connecting rod (20) is movably hingedly mounted on the lower end of the movable pin (16), and the other end is movably hingedly mounted on the pedal (19), and the lifting electric drill (21) is fixedly mounted on the housing (1) via a bracket (22).

2. A valve cover drilling device according to claim 1, characterized in that: The drill bit (23) of the lifting electric drill (21) corresponds to the movable pin (16).

3. A valve cover drilling device according to claim 1 or 2, characterized in that: A force rod (14) is movably mounted on the upper end of the tightening screw rod (12).

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