A tapping device for the threaded end of a valve stem during processing

Abstract

The present invention belongs to the field of valve stem processing, and in particular, it is a tapping device for the threaded end of a valve stem during processing. Aiming at the problems of the existing method that requires workers to manually feed the material, which greatly reduces the work efficiency, it is necessary to clamp the valve stem through a clamping device, and manual support and then clamping are required, and the operation is cumbersome. When discharging, workers still need to take out the processed valve stem. The following solution is now proposed. It includes a processing box and a rectangular box. The rectangular box is located directly below the processing box. Both sides of the processing box are fixedly connected with side boxes. One side of each of the two side boxes is fixedly connected with a first leg. By setting a control component, the falling of the valve stem can be controlled, thereby realizing the process of automatic feeding without the need for workers to manually feed the material. By setting a clamping component to automatically clamp the valve stem, there is no need for workers to support the valve stem, which greatly improves the work efficiency. By setting a collection component to quickly collect the valve stem, continuous processing can be carried out, which is more efficient than workers and can work continuously for a long time.

Description

Technical Field

[0001] The present invention relates to the technical field of valve stem processing, and in particular to a tapping device for the threaded end of valve stem processing. Background Art

[0002] The valve stem is an important component of the valve, used for transmission. It is connected to the actuator or handle at the upper part and directly drives the valve core to move or rotate at the lower part to achieve the opening and closing or adjustment function of the valve. During the opening and closing process of the valve, the valve stem is not only a moving part and a stressed part, but also a sealing part. At the same time, it is subjected to the impact and corrosion of the medium and also generates friction with the packing. Therefore, when selecting the valve stem material, it is necessary to ensure that it has sufficient strength, good impact toughness, anti-galling property, and corrosion resistance at the specified temperature. The valve stem is a vulnerable part, and attention should also be paid to the machining performance and heat treatment performance of the material when selecting.

[0003] The utility model with the publication number CN209110333U provides a full-automatic tapping machine for the tail of the valve stem. It includes a machine base, on which a tapping drill is provided. A material channel for discharging workpieces is provided on the machine base. A cylinder is also provided on the machine base, and the output shaft of the cylinder is connected with a tapping pressure plate. The tapping pressure plate is provided with a material pressing groove and a blanking groove. When the cylinder drives the tapping pressure plate to descend, the blanking groove is in pressing fit with the workpiece in the material channel, and the tapping drill corresponds to the position of the blanking groove. When the cylinder drives the tapping pressure plate to ascend, the position of the blanking groove corresponds to the end of the material channel so that the workpiece rolls into the blanking groove. The utility model can realize automatic loading and unloading of the valve core, tap the tail of the valve core during the loading process, and realize unloading after tapping, greatly improving the work efficiency.

[0004] Tapping operation is required for valve stem processing. The existing tapping devices have the following defects when in use:

[0005] 1. Workers need to manually feed the material, and the feeding speed is slow, greatly reducing the work efficiency;

[0006] 2. It is necessary to clamp the valve stem through a clamping device, and manual support is required before clamping, and the operation is cumbersome;

[0007] 3. When discharging, workers still need to take out the processed valve stem, which is time-consuming and laborious. Therefore, we propose a tapping device for the threaded end of valve stem processing to solve the above-mentioned problems. Summary of the Invention

[0008] The purpose of the present invention is to solve the defects in the prior art that workers need to manually feed the material, the feeding speed is slow, greatly reducing the work efficiency, it is necessary to clamp the valve stem through a clamping device, and manual support is required before clamping, and the operation is cumbersome, and when discharging, workers still need to take out the processed valve stem, which is time-consuming and laborious, and to propose a tapping device for the threaded end of valve stem processing.

[0009] To achieve the above object, the present invention adopts the following technical solutions:

[0010] A tapping device for the threaded end of a valve stem during processing, comprising a processing box and a rectangular box. The rectangular box is located directly below the processing box. Both sides of the processing box are fixedly connected with side boxes. One side of each of the two side boxes is fixedly connected with a first leg. One side of the processing box is fixedly connected with a first cross plate. One end of the first cross plate is fixedly connected with a first vertical plate. A control assembly for controlling the falling of the valve stem is arranged on one side of the first vertical plate;

[0011] A clamping assembly for clamping the valve stem is arranged inside the side box;

[0012] A collecting assembly for collecting the valve stem is arranged inside the rectangular box.

[0013] Preferably, the control assembly includes an electric push rod fixedly connected to one side of the first vertical plate. The piston rod of the electric push rod penetrates through the first vertical plate and is fixedly connected with a second vertical plate. An upper baffle is fixedly connected to one side of the second vertical plate. Two symmetrically arranged connecting rods are fixedly connected to one side of the second vertical plate. The same lower baffle is fixedly connected between the two connecting rods. Transverse holes for cooperating with the upper baffle are formed on both sides of the processing box. The lower baffle cooperates with the bottom of the processing box to control the falling of the valve stem, thereby realizing the process of automatic feeding without manual feeding by workers.

[0014] Preferably, the clamping assembly includes a sliding block slidably penetrating through the side box. A same tension spring is fixedly connected between one side of the sliding block and the inner wall of one side of the side box, automatically clamping the valve stem without the need for workers to support the valve stem for assistance, greatly improving work efficiency.

[0015] Preferably, the collecting assembly includes an inclined plate slidably connected to the inner wall of the rectangular box. A discharge port is formed on one side of the rectangular box. Second legs are fixedly connected to the four corners of the bottom of the rectangular box. A collecting box is arranged on one side of the rectangular box. Two symmetrically arranged springs are fixedly connected between the bottom of the inclined plate and the inner wall of the bottom of the rectangular box for collecting the processed valve stem.

[0016] Preferably, second rectangular holes are formed on both sides of the side box. Second cross plates are fixedly connected to both sides of the second vertical plate. A third cross plate is fixedly connected to one side of the second cross plate. A trapezoidal block is fixedly connected to one end of the third cross plate. The trapezoidal block cooperates with the second rectangular hole and the sliding block to push the two sliding blocks to clamp the valve stem.

[0017] Preferably, an L-shaped plate is fixedly connected to one side of the processing box. A tapping drill is fixedly connected to one side of the L-shaped plate. A circular hole is formed in one side of the processing box. First rectangular holes are formed in both sides of the processing box near the side box for realizing tapping operation.

[0018] Preferably, a friction pad is fixedly connected to one side of the sliding block to increase the friction force and ensure the stability of the valve stem during reprocessing.

[0019] Preferably, the trapezoidal block and the tension spring are not on the same horizontal line, so as to avoid collision between the trapezoidal block and the tension spring.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0021] 1. Put multiple valve stems above the processing box. At this time, the lowermost valve stem falls on the top of the lower baffle. Start the electric push rod. The piston rod of the electric push rod moves horizontally. The piston rod of the electric push rod drives the second vertical plate to move horizontally. The second vertical plate drives the upper baffle, the second horizontal plate and the connecting rod to move horizontally. The upper baffle passes through the horizontal hole and prevents the upper valve stem from falling. At the same time, the lower baffle continues to move forward. At this time, the lowermost valve stem is located between the upper baffle and the lower baffle.

[0022] 2. The second horizontal plate drives the third horizontal plate to move horizontally. The third horizontal plate drives the trapezoidal block to move horizontally and enter the inside of the side box. The trapezoidal block pushes the sliding block to move horizontally. The two sliding blocks approach each other and clamp the valve stem. At the same time, the tension spring is stretched. At this time, start the tapping drill. The drill bit of the tapping drill taps the valve stem through the circular hole. After the processing is completed, continue to start the electric push rod. At this time, the upper baffle and the lower baffle continue to move forward. The lower baffle no longer blocks the processed valve stem. The unprocessed valve stem still cannot fall above the upper baffle.

[0023] 3. At the same time, the trapezoidal block passes through another second rectangular hole and no longer touches the sliding block. The two sliding blocks release the processed valve stem. The valve stem enters the inside of the rectangular box through the gap between the two connecting rods and pushes the inclined plate to move vertically downward. The inclined plate presses the spring. The valve stem enters the collection box through the discharge port, realizing the buffering function to protect the valve stem. At this time, the piston rod of the electric push rod retracts. In this way, the processing can be continued. Compared with workers, the efficiency is higher, and continuous work can be carried out for a long time.

[0024] In the present invention, by setting the control component, the falling of the valve stem can be controlled, thereby realizing the automatic feeding process. There is no need for workers to manually feed. By setting the clamping component, the valve stem can be automatically clamped without the need for workers to support the valve stem for assistance, greatly improving the work efficiency. By setting the collection component, the valve stem can be quickly collected, and continuous processing can be carried out. Compared with workers, the efficiency is higher, and continuous work can be carried out for a long time, which is convenient to use. Description of the Drawings

[0025] Figure 1 This is a three-dimensional structural schematic diagram of the first perspective of a tapping device for the threaded end in the processing of the valve stem proposed by the present invention;

[0026] Figure 2 This is a three-dimensional structural schematic diagram of the second perspective of a tapping device for the threaded end in the processing of the valve stem proposed by the present invention;

[0027] Figure 3 This is a structural schematic diagram of the processing box in the present invention;

[0028] Figure 4 This is a structural schematic diagram of the upper baffle and the lower baffle in the present invention;

[0029] Figure 5 This is a structural schematic diagram of the rectangular box in the present invention;

[0030] Figure 6 This is a three-dimensional sectional structural schematic diagram of the rectangular box in the present invention;

[0031] Figure 7 This is a structural schematic diagram of the side box in the present invention;

[0032] Figure 8 This is a three-dimensional sectional structural schematic diagram of the side box in the present invention.

[0033] In the figure: 1. Processing box; 2. First horizontal plate; 3. First vertical plate; 4. Electric push rod; 5. Second vertical plate; 6. Second horizontal plate; 7. Third horizontal plate; 8. Rectangular box; 9. First leg; 10. Side box; 11. L-shaped plate; 12. Upper baffle; 13. Collection box; 14. Lower baffle; 15. Tapping drill; 16. Round hole; 17. First rectangular hole; 18. Connecting rod; 19. Horizontal hole; 20. Inclined plate; 21. Spring; 22. Discharge port; 23. Second rectangular hole; 24. Friction pad; 25. Trapezoidal block; 26. Tensile spring; 27. Sliding block; 28. Second leg. Specific embodiments

[0034] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0035] Embodiment 1

[0036] Refer to Figure 1-8, A tapping device for the threaded end of a valve stem during processing, comprising a processing box 1 and a rectangular box 8. The rectangular box 8 is located directly below the processing box 1. Both sides of the processing box 1 are fixedly connected with side boxes 10. One side of each of the two side boxes 10 is fixedly connected with a first leg 9. One side of the processing box 1 is fixedly connected with a first horizontal plate 2. One end of the first horizontal plate 2 is fixedly connected with a first vertical plate 3. A control assembly for controlling the falling of the valve stem is arranged on one side of the first vertical plate 3;

[0037] A clamping assembly for clamping the valve stem is arranged inside the side box 10;

[0038] A collecting assembly for collecting the valve stem is arranged inside the rectangular box 8.

[0039] Embodiment 2

[0040] Refer to Figure 1-8 , A tapping device for the threaded end of a valve stem during processing, comprising a processing box 1 and a rectangular box 8. The rectangular box 8 is located directly below the processing box 1. Both sides of the processing box 1 are fixedly connected with side boxes 10. One side of each of the two side boxes 10 is fixedly connected with a first leg 9. One side of the processing box 1 is fixedly connected with a first horizontal plate 2. One end of the first horizontal plate 2 is fixedly connected with a first vertical plate 3. A control assembly for controlling the falling of the valve stem is arranged on one side of the first vertical plate 3. The control assembly includes an electric push rod 4 fixedly connected to one side of the first vertical plate 3. The piston rod of the electric push rod 4 penetrates through the first vertical plate 3 and is fixedly connected with a second vertical plate 5. An upper baffle 12 is fixedly connected to one side of the second vertical plate 5. Two symmetrically arranged connecting rods 18 are fixedly connected to one side of the second vertical plate 5. The same lower baffle 14 is fixedly connected between the two connecting rods 18. Transverse holes 19 for cooperating with the upper baffle 12 are formed on both sides of the processing box 1. The lower baffle 14 cooperates with the bottom of the processing box 1 to control the falling of the valve stem, thereby realizing the process of automatic feeding without manual feeding by workers;

[0041] A clamping assembly for clamping the valve stem is arranged inside the side box 10. The clamping assembly includes a sliding block 27 slidably penetrating through the side box 10. A same tension spring 26 is fixedly connected between one side of the sliding block 27 and the inner wall of one side of the side box 10, automatically clamping the valve stem without the need for workers to support the valve stem for assistance, greatly improving work efficiency;

[0042] Inside the rectangular box 8, there is a collecting component for collecting valve stems. The collecting component includes an inclined plate 20 slidably connected to the inner wall of the rectangular box 8. There is a discharge port 22 on one side of the rectangular box 8. At the four corners of the bottom of the rectangular box 8, there are second legs 28 fixedly connected. There is a collecting box 13 on one side of the rectangular box 8. Between the bottom of the inclined plate 20 and the inner bottom wall of the rectangular box 8, there are two symmetrically arranged springs 21 fixedly connected, which are used to collect the processed valve stems. On both sides of the side box 10, there are second rectangular holes 23. On both sides of the second vertical plate 5, there are second horizontal plates 6 fixedly connected. On one side of the second horizontal plate 6, there is a third horizontal plate 7 fixedly connected. At one end of the third horizontal plate 7, there is a trapezoidal block 25. The trapezoidal block 25 is used in cooperation with the second rectangular hole 23 and the sliding block 27 to push the two sliding blocks 27 to clamp the valve stem. On one side of the processing box 1, there is an L-shaped plate 11 fixedly connected. On one side of the L-shaped plate 11, there is a tapping drill 15 fixedly connected. There is a round hole 16 on one side of the processing box 1. On both sides of the processing box 1, near the position of the side box 10, there are first rectangular holes 17, which are used to realize the tapping operation. On one side of the sliding block 27, there is a friction pad 24, which increases the friction force and ensures the stability of the valve stem during processing. The trapezoidal block 25 and the tension spring 26 are not on the same horizontal line, so as to avoid collision between the trapezoidal block 25 and the tension spring 26.

[0043] Working principle: When in use, multiple valve stems are put in from above the processing box 1. At this time, the lowermost valve stem falls on the top of the lower baffle 14. Start the electric push rod 4, and the piston rod of the electric push rod 4 moves horizontally. The piston rod of the electric push rod 4 drives the second vertical plate 5 to move horizontally. The second vertical plate 5 drives the upper baffle 12, the second horizontal plate 6 and the connecting rod 18 to move horizontally. The upper baffle 12 passes through the horizontal hole 19 and prevents the upper valve stems from falling. At the same time, the lower baffle 14 continues to move forward. At this time, the lowermost valve stem is located between the upper baffle 12 and the lower baffle 14. The second horizontal plate 6 drives the third horizontal plate 7 to move horizontally. The third horizontal plate 7 drives the trapezoidal block 25 to move horizontally and enter the inside of the side box 10. The trapezoidal block 25 pushes the sliding block 27 to move horizontally. The two sliding blocks 27 approach each other and clamp the valve stem. At the same time, the tension spring 26 is stretched. At this time, start the tapping drill 15. The drill bit of the tapping drill 15 taps the valve stem through the round hole 16. After the processing is completed, continue to start the electric push rod 4. At this time, the upper baffle 12 and the lower baffle 14 continue to move forward. The lower baffle 14 no longer blocks the processed valve stem. The unprocessed valve stems still cannot fall above the upper baffle 12. At the same time, the trapezoidal block 25 passes through another second rectangular hole 23 and no longer touches the sliding block 27. The two sliding blocks 27 release the processed valve stem. The valve stem enters the inside of the rectangular box 8 through the gap between the two connecting rods 18 and pushes the inclined plate 20 to move vertically downward. The inclined plate 20 presses the spring 21. The valve stem enters the inside of the collection box 13 through the discharge port 22, realizing the buffering function to protect the valve stem. At this time, the piston rod of the electric push rod 4 retracts. Repeating this process can continuously process. Compared with workers, the efficiency is higher, and it can work continuously for a long time, which is convenient to use.

[0044] However, as is well known to those skilled in the art, the working principles and wiring methods of the electric push rod 4 and the tapping drill 15 are common knowledge and are both conventional means or well-known common sense, so they will not be elaborated here. Those skilled in the art can make any selection according to their needs or convenience.

[0045] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A tapping device for the threaded end of a valve stem processing, comprising a processing box (1) and a rectangular box (8), characterized in that, The rectangular box (8) is located directly below the processing box (1). Both sides of the processing box (1) are fixedly connected with side boxes (10). One side of each of the two side boxes (10) is fixedly connected with a first leg (9). One side of the processing box (1) is fixedly connected with a first cross plate (2). One end of the first cross plate (2) is fixedly connected with a first vertical plate (3). A control assembly for controlling the falling of the valve rod is arranged on one side of the first vertical plate (3); A clamping assembly for clamping the valve rod is arranged inside the side box (10); A collecting assembly for collecting the valve rod is arranged inside the rectangular box (8); The control assembly includes an electric push rod (4) fixedly connected to one side of the first vertical plate (3). The piston rod of the electric push rod (4) penetrates through the first vertical plate (3) and is fixedly connected with a second vertical plate (5). An upper baffle (12) is fixedly connected to one side of the second vertical plate (5). Two symmetrically arranged connecting rods (18) are fixedly connected to one side of the second vertical plate (5). The same lower baffle (14) is fixedly connected between the two connecting rods (18). Transverse holes (19) for cooperating with the upper baffle (12) are formed in both sides of the processing box (1). The lower baffle (14) is used in cooperation with the bottom of the processing box (1); The clamping assembly includes a sliding block (27) slidably penetrating through the side box (10). The same tension spring (26) is fixedly connected between one side of the sliding block (27) and the inner wall of one side of the side box (10); Second rectangular holes (23) are formed in both sides of the side box (10). Second cross plates (6) are fixedly connected to both sides of the second vertical plate (5). A third cross plate (7) is fixedly connected to one side of the second cross plate (6). One end of the third cross plate (7) is fixedly connected with a trapezoidal block (25). The trapezoidal block (25) is used in cooperation with the second rectangular hole (23) and the sliding block (27); A friction pad (24) is fixedly connected to one side of the sliding block (27); The trapezoidal block (25) and the tension spring (26) are not on the same horizontal line.

2. The tapping device for the threaded end in the valve stem machining according to claim 1, wherein, The collecting assembly includes an inclined plate (20) slidably connected to the inner wall of the rectangular box (8). A discharge port (22) is formed in one side of the rectangular box (8). Second legs (28) are fixedly connected to the four corners of the bottom of the rectangular box (8). A collecting box (13) is arranged on one side of the rectangular box (8). The same two springs (21) are fixedly connected between the bottom of the inclined plate (20) and the inner wall of the bottom of the rectangular box (8); 3. A tapping device for the threaded end in the valve stem machining according to claim 1, characterized in that, An L-shaped plate (11) is fixedly connected to one side of the processing box (1). A tapping drill (15) is fixedly connected to one side of the L-shaped plate (11). A circular hole (16) is formed in one side of the processing box (1). First rectangular holes (17) are formed in both sides of the processing box (1) near the side boxes (10).

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