Thread tapping device for valve rod machining

By introducing a cleaning mechanism into the thread tapping device, the problem of filter clogging caused by debris precipitation was solved, and efficient circulation of coolant and stable processing of valve stems were achieved.

CN223368408UActive Publication Date: 2025-09-23JIANGSU ZENGRUI INTELLIGENT CONTROL TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202422759571.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-13
Publication Date
2025-09-23
Estimated Expiration
2034-11-13

AI Technical Summary

Technical Problem

In existing valve stem thread tapping devices, debris settles in the box and is difficult to clean, causing filter screen clogging and increasing cleaning difficulty and risk.

Method used

A thread tapping device including a cleaning mechanism is designed. The filter screen filters debris, the filter head blocks tiny debris, the push-pull rod cleans the debris, and the drain port discharges accumulated debris to ensure smooth circulation of the coolant.

Benefits of technology

It effectively filters debris, prevents clogging of the spray pipe and water pump, simplifies the cleaning process, ensures coolant circulation efficiency, and guarantees the stability and efficiency of valve stem processing.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a thread tapping device for valve rod machining, which relates to the technical field of machining equipment and comprises a cleaning mechanism, the cleaning mechanism comprises a machining table, and a box body is arranged at the bottom of the machining table. According to the cooling device, used cooling liquid and chippings splashed during machining can be filtered through the arranged filter screen, the cooling liquid can flow into the box body again, the cooling liquid in the box body continues to be pumped into the spraying pipe by starting the water pump, the valve rod is cooled through the cooling liquid in a circulating mode, and the cooling effect is good. Tiny chippings can be effectively blocked through a filter head, the situation that the spraying pipe and the water pump are blocked by the tiny chippings is avoided, a filter screen can be taken out of a clamping groove formed in the machining table through a mounting block and a mounting groove to be cleaned, and the subsequent filtering effect of the filter screen is ensured; the push-pull rod is pushed to enable the push plate to move in the box body, scraps accumulated in the box body are pushed to the liquid outlet, and then the work of cleaning the scraps in the box body is completed.
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Description

Technical Field

[0001] The utility model relates to the technical field of mechanical processing equipment, in particular to a thread tapping device for valve stem processing. Background Art

[0002] The valve stem is a key component for controlling fluid flow and is typically manufactured from stainless steel, copper, or other corrosion-resistant, high-strength metals. During its production, the valve stem undergoes thread tapping to enable precise connection with the corresponding fittings. This tapping process not only needs to ensure thread accuracy but also prevent material property changes caused by high-temperature processing. To achieve this goal, coolant plays a key role in absorbing and dissipating the heat generated by friction during the tapping process.

[0003] The existing authorization announcement number is CN220838279U, which discloses a thread tapping device for valve stem processing, including a workbench, the lower end surface of which is provided with a circulation component for circulating coolant, and the upper end of the workbench is respectively provided with a clamp component for fixing the valve stem and a tool holder component for tapping, the circulation component including a box body, a liquid inlet, a positioning groove, a clamping plate, a first filter screen, a positioning part, a side flow plate, a fixing cylinder, a second filter screen, a water pump, and a rotating nozzle; the utility model has a simple structure and a reasonable design. By arranging a water tank and a water pump at the bottom of the workbench, the circulation flow of the coolant is ensured. By arranging the first filter screen and the second filter screen, internal debris can be effectively intercepted, reducing the risk of clogging of the water pump and the rotating nozzle. By arranging the side flow plate, the contact area between the coolant and the surrounding environment is increased, heat loss is accelerated, and the cooling efficiency during the valve stem tapping process is improved.

[0004] While the above technical solution effectively intercepts internal debris by providing the first and second filters, reducing the risk of clogging the water pump and rotary nozzle, over time, some debris accumulates inside the housing. This debris cannot be completely discharged from the drain pipe along with the liquid flow, making cleaning more difficult and potentially causing clogging of the second filter. Therefore, we provide a thread tapping device for valve stem machining. Utility Model Content

[0005] The purpose of the utility model is to provide a thread tapping device for valve stem processing to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a thread tapping device for valve stem processing, comprising: a cleaning mechanism, the cleaning mechanism comprising a processing table, a box body is provided at the bottom of the processing table, a sealing plug is provided in a card slot opened on one side of the box body, a push-pull rod is provided in the sealing plug, a push plate is provided at one end of the push-pull rod close to the inside of the box body, a drain port is provided at the bottom of the box body away from the sealing plug, a water pump is provided on the side of the box body away from the sealing plug, a spray pipe is provided on the side of the water pump away from the box body, a liquid inlet pipe is provided on the side of the water pump away from the spray pipe, a filter head is provided at one end of the liquid inlet pipe away from the water pump, mounting grooves are provided at four corners of the inner wall of the card slot opened through the top of the processing table, a filter screen is provided in the card slot opened through the top of the processing table, mounting blocks are provided at both ends of both sides of the filter screen, handles are provided on the tops of the four mounting blocks, and an adjustment mechanism is provided on one side of the top of the processing table.

[0007] As a further preferred embodiment of the present technical solution, the adjustment mechanism includes a mounting seat, the bottom of which is fixedly connected to one side of the top of the processing table, one side of the mounting seat is fixedly connected to a support plate, the top of the support plate is fixedly installed with a motor, and the output end of the motor is fixedly connected to one end of the bidirectional screw rod.

[0008] As a further preferred embodiment of the present technical solution, the other end of the bidirectional screw is rotatably connected to the inner wall of the slot opened in the mounting seat, which is away from the motor, and the two different threads on the outside of the bidirectional screw are threadedly connected to the adjustment blocks, and one side of the two adjustment blocks is fixedly connected to a clamp.

[0009] As a further preferred embodiment of the present technical solution, the bottom of the processing table is fixedly connected to the top of the box body, a sealing plug is fixedly connected to the slot opened on the side of the box body away from the water pump, the inner surface of the sealing plug is slidably connected to the outside of the push-pull rod, and the push-pull rod is fixedly connected to a push plate at one end close to the drain port.

[0010] As a further preferred embodiment of the present technical solution, a support seat is fixedly connected to the side of the box body away from the sealing plug, a water pump is fixedly installed in the support seat, the output end of the water pump is fixedly connected to one end of the spray pipe, and the other end of the spray pipe passes through the top of the processing box.

[0011] As a further preferred embodiment of the present technical solution, the input end of the water pump is fixedly connected to one end of the liquid inlet pipe, the other end of the liquid inlet pipe extends into the interior of the box and is threadedly connected to the filter head, and the filter screen is docked in a slot that runs through the top of the processing table.

[0012] As a further preferred embodiment of the present technical solution, both ends of the filter are fixedly connected with mounting blocks, the outside of the mounting blocks are docked in the mounting groove, the top of the mounting blocks are fixedly connected with handles, and processing equipment is provided on the side of the top of the processing table away from the mounting seat.

[0013] The utility model provides a thread tapping device for valve stem processing, which has the following beneficial effects:

[0014] (1) The utility model can filter the used coolant and the debris splashed during processing through the filter screen provided, and the coolant will flow back into the box body. By starting the water pump, the coolant in the box body will continue to be pumped into the spray pipe, and the coolant will circulate to cool the valve stem. The filter head provided can effectively block these tiny debris to prevent the tiny debris from clogging the spray pipe and the water pump. The filter screen can be taken out of the card slot opened on the processing table through the installation block and installation slot for cleaning, ensuring its subsequent filtering effect. By pushing the push-pull rod, the push plate is moved in the box body, and the debris accumulated in the box body is pushed to the drain port, thereby completing the cleaning of the debris in the box.

[0015] (2) The utility model starts the motor, thereby driving the bidirectional screw to rotate, and the two adjustment blocks located at different threaded parts of the bidirectional screw will move synchronously relative to or towards each other. Therefore, when the two moving blocks are adjusted to a spacing that matches the size of the valve stem, the valve stem can be clamped and fixed, ensuring the stability of the valve stem during processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The utility model is a structural schematic diagram of a thread tapping device for valve stem processing.

[0017] Figure 2 This is a schematic structural diagram of the dissected and disassembled side of a cleaning mechanism of a thread tapping device for valve stem processing according to the utility model.

[0018] Figure 3 This is a structural schematic diagram of a partially disassembled side view of a cleaning mechanism of a thread tapping device for valve stem processing according to the utility model.

[0019] Figure 4 This is a structural schematic diagram of the side surface of an adjusting mechanism of a thread tapping device for valve stem processing according to the present invention.

[0020] Figure: 1. Cleaning mechanism; 11. Processing table; 12. Box; 13. Sealing plug; 14. Push-pull rod; 15. Push plate; 16. Drain port; 17. Water pump; 18. Spray pipe; 19. Liquid inlet pipe; 110. Filter head; 111. Mounting slot; 112. Filter screen; 113. Mounting block; 114. Handle.

[0021] 2. Adjustment mechanism; 21. Mounting seat; 22. Motor; 23. Bidirectional screw; 24. Adjustment block; 25. Clamp;

[0022] 31. Support seat; 32. Processing equipment; 33. Support plate. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0024] The utility model provides a technical solution: Figure 1-Figure 4 As shown, in this embodiment, a thread tapping device for valve stem processing includes: a cleaning mechanism 1, the cleaning mechanism 1 includes a processing table 11, a box body 12 is provided at the bottom of the processing table 11, a sealing plug 13 is provided in a card groove opened on one side of the box body 12, a push-pull rod 14 is provided in the sealing plug 13, a push plate 15 is provided at one end of the push-pull rod 14 close to the inside of the box body 12, a drain port 16 is provided at the bottom of the box body 12 away from the sealing plug 13, a water pump 17 is provided on the side of the box body 12 away from the sealing plug 13, and a bottom of the processing table 11 is provided with a sealing plug 13. The top of the box body 12 is fixedly connected to the top of the box body 12, and a sealing plug 13 is fixedly connected to the slot opened on the side of the box body 12 away from the water pump 17. The inner surface of the sealing plug 13 is slidably connected to the outside of the push-pull rod 14. The end of the push-pull rod 14 close to the discharge port 16 is fixedly connected to the push plate 15. A spray pipe 18 is provided on the side of the water pump 17 away from the box body 12. A support seat 31 is fixedly connected to the side of the box body 12 away from the sealing plug 13. The water pump 17 is fixedly installed in the support seat 31. The output end of the water pump 17 is fixedly connected to one end of the spray pipe 18 The other end of the spray pipe 18 passes through the top of the processing box, and a liquid inlet pipe 19 is provided on the side of the water pump 17 away from the spray pipe 18. A filter head 110 is provided at the end of the liquid inlet pipe 19 away from the water pump 17. The four corners of the inner wall of the card slot opened through the top of the processing table 11 are provided with mounting grooves 111. A filter screen 112 is provided in the card slot opened through the top of the processing table 11. The input end of the water pump 17 is fixedly connected to one end of the liquid inlet pipe 19, and the other end of the liquid inlet pipe 19 extends to the inside of the box body 12 and is threadedly connected to the filter head 110. The filter screen 112 is docked in the card slot that runs through the top of the processing table 11, and mounting blocks 113 are provided at both ends of both sides of the filter screen 112. The tops of the four mounting blocks 113 are provided with handles 114. The two ends of both sides of the filter screen 112 are fixedly connected with the mounting blocks 113. The outside of the mounting block 113 is docked in the mounting slot 111, and the top of the mounting block 113 is fixedly connected with the handle 114. A processing device 32 is provided on the side of the top of the processing table 11 away from the mounting seat 21, and an adjustment mechanism 2 is provided on one side of the top of the processing table 11.

[0025] In this embodiment, when the device needs to be used to process the valve stem, the valve stem is first fixed according to the adjustment mechanism 2, and the valve stem is processed by the processing equipment 32. During the processing, a large amount of heat is generated at the processing end of the valve stem. Therefore, the coolant sprayed from the spray pipe 18 can cool the processing end of the valve stem. The used coolant and the debris splashed during processing will fall on the filter screen 112 together, and the debris will be isolated and filtered by the filter screen 112. The coolant will flow back into the box body 12, and the coolant in the box body 12 will continue to be extracted into the spray pipe 18 by starting the water pump 17. The coolant will circulate to cool the valve stem. It is mentioned here that although the filter screen 112 can filter the debris, some tiny debris still floats in the box body 12. When the mixed coolant in the box body 12 is circulated, it is filtered out through the filter head 1 10 can effectively block these tiny debris and prevent the tiny debris from clogging the spray pipe 18 and the water pump 17. When the filter head 110 needs to be cleaned, it can be directly removed from the liquid inlet pipe 19 by rotating the thread to clean the debris blocking its pores. When the filter screen 112 needs to be cleaned, the handle 114 can be pulled upwards, and the filter screen 112 can be removed from the slot opened in the processing table 11 through the provided mounting block 113 and the mounting slot 111 for cleaning, thereby ensuring its subsequent filtering effect. After the coolant has been circulated for many times, some debris may accumulate in the box body 12. Therefore, the recycled coolant is discharged through the opened drain port 16. By pushing the push-pull rod 14, the push plate 15 is moved in the box body 12 to push the debris accumulated in the box body 12 to the drain port 16, thereby completing the cleaning of the debris in the box.

[0026] like Figure 1-Figure 4 As shown, the adjustment mechanism 2 includes a mounting base 21, the bottom of the mounting base 21 is fixedly connected to one side of the top of the processing table 11, one side of the mounting base 21 is fixedly connected to a support plate 33, the top of the support plate 33 is fixedly installed with a motor 22, the output end of the motor 22 is fixedly connected to one end of the bidirectional screw rod 23, the other end of the bidirectional screw rod 23 is rotatably connected to the side of the inner wall of the slot opened in the mounting base 21 away from the motor 22, and the two different threads on the outside of the bidirectional screw rod 23 are both threadedly connected to the adjustment block 24, and one side of the two adjustment blocks 24 is fixedly connected to the clamp 25.

[0027] In this embodiment, the distance between the two clamps 25 is adjusted according to the thickness of the valve stem, so that the motor 22 can be started, thereby driving the bidirectional screw rod 23 to rotate, and the two adjustment blocks 24 located at different threaded parts of the bidirectional screw rod 23 will move synchronously relative to or towards each other. Therefore, when the two moving blocks are adjusted to a spacing that matches the size of the valve stem, the valve stem can be clamped and fixed, ensuring the stability of the valve stem during processing.

[0028] The utility model provides a thread tapping device for valve stem processing, and the specific working principle is as follows:

[0029] The distance between the two clamps 25 is adjusted according to the thickness of the valve stem, so the motor 22 can be started to drive the bidirectional screw rod 23 to rotate, and the two adjustment blocks 24 located at different threaded parts of the bidirectional screw rod 23 will move synchronously relative to or towards each other. Therefore, when the two moving blocks are adjusted to a spacing that matches the size of the valve stem, the valve stem can be clamped and fixed. The valve stem is processed by the processing equipment 32. During the processing, the processing end of the valve stem will generate a lot of heat. Therefore, the coolant sprayed from the spray pipe 18 can cool the processing end of the valve stem. The used coolant and the debris splashed by the processing will fall on the filter screen 112 together. The debris will be isolated and filtered by the filter screen 112, and the coolant will flow back into the box body 12. By starting the water pump 17, the coolant in the box body 12 will continue to be extracted into the spray pipe 18, and the coolant will circulate to cool the valve stem. During recycling, the filter head 110 can effectively block these tiny debris. When the filter head 110 needs to be cleaned, it can be directly removed from the liquid inlet pipe 19 by screwing it, so as to conveniently clean the debris blocking its pores. In addition, when the filter screen 112 needs to be cleaned, just pull the handle 114 upwards, and the filter screen 112 can be removed from the slot opened in the processing table 11 through the provided mounting block 113 and mounting slot 111 for thorough cleaning. As the coolant is recycled many times, some debris may gradually accumulate in the box 12. In order to solve this problem, we can discharge the recycled coolant by opening the drain port 16. At the same time, by pushing the push-pull rod 14 to make the push plate 15 move in the box 12, the debris accumulated in the box 12 can be pushed to the drain port 16. In this way, the cleaning of the debris in the box can be completed.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A thread tapping device for valve stem processing, characterized in that: include: A cleaning mechanism (1) includes a processing table (11), a box (12) is provided at the bottom of the processing table (11), a sealing plug (13) is provided in a slot opened on one side of the box (12), a push-pull rod (14) is provided in the sealing plug (13), a push plate (15) is provided at one end of the push-pull rod (14) close to the inside of the box (12), a drain port (16) is provided at the bottom of the box (12) away from the sealing plug (13), a water pump (17) is provided on the side of the box (12) away from the sealing plug (13), and a spray nozzle (17) is provided on the side of the water pump (17) away from the box (12). The water pump (17) is provided with a liquid inlet pipe (19) on one side away from the spray pipe (18), and a filter head (110) is provided on one end of the liquid inlet pipe (19) away from the water pump (17). The top of the processing table (11) is provided with mounting grooves (111) at four corners of the inner wall of the card slot provided through the top of the processing table (11). A filter screen (112) is provided in the card slot provided through the top of the processing table (11), and mounting blocks (113) are provided at both ends of both sides of the filter screen (112). The tops of the four mounting blocks (113) are provided with handles (114). An adjustment mechanism (2) is provided on one side of the top of the processing table (11).

2. A thread tapping device for valve stem processing according to claim 1, characterized in that: The adjustment mechanism (2) comprises a mounting seat (21), the bottom of the mounting seat (21) is fixedly connected to one side of the top of the processing table (11), one side of the mounting seat (21) is fixedly connected to a support plate (33), the top of the support plate (33) is fixedly mounted with a motor (22), and the output end of the motor (22) is fixedly connected to one end of a bidirectional screw rod (23).

3. A thread tapping device for valve stem processing according to claim 2, characterized in that: The other end of the bidirectional screw rod (23) is rotatably connected to the inner wall of the slot provided in the mounting seat (21) and away from the motor (22), and two different threaded portions on the outside of the bidirectional screw rod (23) are both threadedly connected to an adjustment block (24), and one side of each of the two adjustment blocks (24) is fixedly connected to a clamp (25).

4. A thread tapping device for valve stem processing according to claim 1, characterized in that: The bottom of the processing table (11) is fixedly connected to the top of the box (12); a sealing plug (13) is fixedly connected in a slot opened on the side of the box (12) away from the water pump (17); the inner surface of the sealing plug (13) is slidably connected to the outside of the push-pull rod (14); and a push plate (15) is fixedly connected to one end of the push-pull rod (14) close to the discharge port (16).

5. The thread tapping device for valve stem processing according to claim 1, characterized in that: A support base (31) is fixedly connected to one side of the box body (12) away from the sealing plug (13), a water pump (17) is fixedly installed in the support base (31), an output end of the water pump (17) is fixedly connected to one end of a spray pipe (18), and the other end of the spray pipe (18) passes through the top of the processing box.

6. A thread tapping device for valve stem machining according to claim 1, characterized in that: The input end of the water pump (17) is fixedly connected to one end of the liquid inlet pipe (19), the other end of the liquid inlet pipe (19) extends into the interior of the box (12) and is threadedly connected to the filter head (110), and the filter screen (112) is docked in a slot extending through the top of the processing table (11).

7. A thread tapping device for valve stem processing according to claim 1, characterized in that: Both ends of the filter screen (112) are fixedly connected to mounting blocks (113), the outside of the mounting blocks (113) is docked in the mounting groove (111), the top of the mounting blocks (113) is fixedly connected to a handle (114), and a processing device (32) is provided on a side of the top of the processing table (11) away from the mounting seat (21).

Citation Information

Patent Citations

  • Thread tapping device for valve rod machining

    CN220838279U