A threading machine for lathe hardware parts machining
By designing sealing and oil collection components on the threading machine, the problem of lubricating oil entering the inner wall of the metal pipe is solved, achieving efficient lubricating oil management and a clean processing environment, thereby improving processing efficiency and component quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN GUANPIN HARDWARE PROD CO LTD
- Filing Date
- 2025-08-26
- Publication Date
- 2026-07-21
AI Technical Summary
When existing threading machines process metal tubes, lubricating oil can easily enter the tube opening, contaminating the inner wall of the metal tube and requiring time-consuming cleaning.
The design incorporates a sealing component and an oil collection component. The sealing component includes a baffle and a rubber plate, which are connected elastically to seal the metal pipe opening. The oil collection component collects the splashed lubricating oil and prevents it from entering the pipe opening.
It effectively prevents lubricating oil from entering the inner wall of metal pipes, reduces cleaning time and costs, improves processing efficiency and component quality, and maintains a clean working environment.
Smart Images

Figure CN224526167U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of parts processing technology, specifically relating to a threading machine for machining metal parts on a lathe. Background Technology
[0002] Hardware components are cylindrical tubular structures, mostly used for transporting liquids. Threaded joints are required at the pipe ends, typically processed using a threading machine. Threading machines are modern and common devices for threading metal pipe ends. They clamp and rotate the pipe to create threads on the outside. Existing threading machines use lubricating oil for cooling during processing, but this allows lubricating oil to easily enter the pipe end, contaminating the inner wall of the metal pipe, and cleaning is very time-consuming.
[0003] Chinese utility model patent CN222344406U relates to the field of parts processing technology and discloses a threading machine for machining metal parts on a lathe. The machine includes a support table, a sealing assembly on the top of the front of the support table to prevent lubricating oil splashing, a lubrication assembly above the support table, and a lubrication filter assembly for lubricating and filtering metal debris. The sealing assembly includes a round tube clamp with two sets of limiting sleeves installed on its top. A sliding guide rod is embedded inside the limiting sleeves and the round tube clamp, and a sealing disc is installed on the back of the sliding guide rod. A corrugated pipe is installed on the front of the inner side of the sealing disc. This threading machine for machining metal parts on a lathe effectively avoids the problem of lubricating oil splashing and contamination of the machining table during processing, which is difficult to clean. However, during processing, lubricating oil can easily enter the pipe opening, contaminating the inner wall of the metal pipe, and cleaning is very time-consuming. Utility Model Content
[0004] The purpose of this utility model is to provide a threading machine for machining metal parts on a lathe, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a threading machine for machining metal parts on a lathe, comprising a base plate, on which a drive motor, an oil nozzle, and a support are fixedly mounted; a clamp is movably mounted on the support via an optical shaft; a rotating seat is driven and connected to the drive motor; a thread cutter is fixedly mounted on the rotating seat; a sleeve is provided at the center of the rotating seat; a sealing assembly is elastically connected to the sleeve via a spring; the sealing assembly includes a baffle and a rubber plate; the baffle is fixedly connected to the rubber plate; a guide rod is provided on the baffle; the guide rod is movably inserted into the sleeve; an oil guide groove is provided on the side wall of the rotating seat; and an oil collection assembly is fixedly mounted on the base plate located outside the rotating seat.
[0006] Preferably, the oil collection assembly includes a collection box and a flip cover, the collection box being fixedly connected to the flip cover via a hinge, and the collection box having an oil outlet.
[0007] Preferably, a transmission box is fixedly installed on the base plate, the transmission box is equipped with a hand crank, and the transmission box is connected to the clamp via a lead screw.
[0008] Preferably, the material of the adhesive sheet is soft silicone.
[0009] Compared with the prior art, the beneficial effects of this utility model are:
[0010] The clamp of this utility model holds and fixes the metal tube and pushes it stably to the rotating seat. The opening of the metal tube abuts against the sealing component. Specifically, the spring elastically abuts against the baffle, so that the rubber plate presses the opening of the tube to play a sealing role. The drive motor drives the rotating seat to rotate, which drives the thread cutter to cut the metal tube. At the same time, the oil nozzle sprays lubricating oil onto the opening of the tube for cooling. The rubber plate presses the opening of the tube to prevent lubricating oil from entering the opening of the tube and prevents the inner wall of the metal tube from being contaminated. Attached Figure Description
[0011] Figure 1 This is the first perspective structural view of this utility model.
[0012] Figure 2 This is the second perspective structural view of this utility model.
[0013] Figure 3 This is a structural view of the rotary base of this utility model.
[0014] The diagram shows: 1. Base plate; 2. Drive motor; 3. Injector nozzle; 4. Support; 5. Optical shaft; 6. Clamp; 7. Rotary seat; 8. Thread cutter; 9. Sleeve; 10. Spring; 11. Sealing assembly; 12. Baffle; 13. Rubber plate; 14. Guide rod; 15. Oil guide groove hole; 16. Oil collection assembly; 17. Collection box; 18. Flip cover; 19. Hinge; 20. Oil outlet; 21. Transmission box; 22. Hand crank; 23. Threaded rod. Detailed Implementation
[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0016] Example 1:
[0017] This utility model provides a threading machine for machining metal parts on a lathe, comprising a base plate 1, on which a drive motor 2, an oil nozzle 3, and a support 4 are fixedly mounted. A clamp 6 is movably mounted on the support 4 via an optical shaft 5. The drive motor 2 drives and connects to a rotating seat 7, on which a thread cutter 8 is fixedly mounted. A sleeve 9 is located at the center of the rotating seat 7, and the sleeve 9 is elastically connected to a sealing assembly 11 via a spring 10. The sealing assembly 11 includes a baffle 12 and a rubber plate 13, with the baffle 12 fixedly connected to the rubber plate 13. The baffle 12 has a guide rod 14, which is movably inserted into the sleeve 9. An oil guide groove 15 is provided on the side wall of the rotating seat 7. An oil collection assembly 16 is fixedly mounted on the base plate 1, located outside the rotating seat 7. The oil collection assembly 16 includes a collection box 17 and a flip cover 18, with the collection box 17 fixedly connected to the flip cover 18 via a hinge 19. The collection box 17 has an oil outlet 20. A transmission box 21 is fixedly mounted on the base plate 1. The transmission box 21 is equipped with a hand crank 22 and is connected to the clamp 6 via a lead screw 23. The material of the rubber plate 13 is soft silicone.
[0018] Through the above technical solution, the clamp 6 of this utility model clamps and fixes the metal tube and pushes it stably to the rotating seat 7. The opening of the metal tube abuts against the sealing component 11. Specifically, the spring 10 elastically abuts against the baffle 12, so that the rubber plate 13 presses the opening of the tube to play a sealing role. The drive motor 2 drives the rotating seat 7 to rotate, which drives the thread cutter 8 to cut the metal tube. At the same time, the oil nozzle 3 sprays lubricating oil onto the opening of the tube for cooling. The rubber plate 13 presses the opening of the tube to prevent lubricating oil from entering the opening of the tube and prevents the inner wall of the metal tube from being contaminated.
[0019] Example 2:
[0020] In this embodiment, a drive motor 2, an oil injector 3, and a support 4 are fixedly installed on the base plate 1. A clamp 6 is movably installed on the support 4 via an optical shaft 5. The drive motor 2 drives and connects to a rotating seat 7. A thread cutter 8 is fixedly installed on the rotating seat 7. A sleeve 9 is provided at the center of the rotating seat 7. A sealing assembly 11 is elastically connected to the sleeve 9 via a spring 10. The sealing assembly 11 includes a baffle 12 and a rubber plate 13. The baffle 12 is fixedly connected to the rubber plate 13. The baffle 12 is provided with a guide rod 14. The guide rod 14 is movably inserted into the sleeve 9. An oil guide groove hole 15 is provided on the side wall of the rotating seat 7. An oil collection assembly 16 is fixedly installed on the base plate 1 outside the rotating seat 7.
[0021] During operation, the clamp 6 is movably mounted on the support 4 via the optical axis 5, used to clamp and fix the metal tubular parts to be processed. The clamp 6 stably pushes the metal tube towards the rotating seat 7, so that the tube opening contacts the sealing assembly 11. The sealing assembly 11 is elastically connected to the sleeve 9 via the spring 10. When the metal tube opening abuts against the sealing assembly 11, the spring 10 provides elastic force, causing the baffle 12 to push the rubber plate 13 to press the metal tube opening, forming a sealing interface to prevent external substances from entering the tube opening. The guide rod 14 provided on the baffle 12 is movably inserted into the sleeve 9 to ensure that the sealing assembly 11 remains stable and aligned during axial movement, avoiding skewing or jamming.
[0022] After the drive motor 2 starts, it drives the rotary seat 7 to rotate at high speed. The rotary seat 7 drives the fixedly mounted thread cutter 8 to perform cutting motion, threading the metal pipe end. At the same time, the oil nozzle 3 sprays lubricating oil into the rotary seat 7 and the thread cutter 8 area to cool the cutting area and reduce friction. Under the centrifugal force of the rotating seat 7, the lubricating oil is thrown outward through the oil guide groove hole 15 provided in the side wall of the rotary seat 7. The design of the oil guide groove hole 15 allows the lubricating oil to be discharged from the inside of the rotary seat 7 in an orderly manner, avoiding accumulation inside the rotary seat 7.
[0023] The splashed lubricating oil is collected by the oil collection assembly 16 fixedly installed on the outside of the base plate 1. Located around the rotating seat 7, the oil collection assembly 16 effectively captures the splashed lubricating oil through its structural design, preventing it from splashing onto other parts of the equipment or the working environment, thus reducing contamination and cleaning needs. Throughout the processing, the rubber plate 13 of the sealing assembly 11 continuously presses against the metal pipe opening, ensuring that lubricating oil does not enter the pipe opening, thereby preventing contamination of the inner wall of the metal pipe and solving the problem of difficult cleaning caused by lubricating oil entering the pipe opening in the prior art.
[0024] This embodiment achieves lubricant recycling and environmental protection through the elastic sealing of the sealing component 11 and the effective collection of the oil collection component 16, while improving processing efficiency and component quality. The rotational motion of the rotating seat 7, combined with the cutting action of the thread cutter 8, ensures the accuracy and consistency of thread processing. The lubrication and cooling effect of the oil injector 3 extends tool life and reduces equipment maintenance requirements. The overall structure is simple and reliable, suitable for threading applications on various hardware components.
[0025] Example 3:
[0026] In this embodiment, a drive motor 2, an oil injector 3, and a support 4 are fixedly installed on the base plate 1. A clamp 6 is movably installed on the support 4 via an optical shaft 5. The drive motor 2 drives and connects to a rotating seat 7. A thread cutter 8 is fixedly installed on the rotating seat 7. A sleeve 9 is provided at the center of the rotating seat 7. A sealing assembly 11 is elastically connected to the sleeve 9 via a spring 10. The sealing assembly 11 includes a baffle 12 and a rubber plate 13. The baffle 12 is fixedly connected to the rubber plate 13. The baffle 12 is provided with a guide rod 14. The guide rod 14 is movably inserted into the sleeve 9. An oil guide groove hole 15 is provided on the side wall of the rotating seat 7. An oil collection assembly 16 is fixedly installed on the base plate 1 and located outside the rotating seat 7. The oil collection assembly 16 includes a collection box 17 and a flip cover 18. The collection box 17 is fixedly connected to the flip cover 18 via a hinge 19. The collection box 17 is provided with an oil outlet 20. As the rotating seat 7 rotates, the nozzle 3 sprays lubricating oil into the pipe opening. The lubricating oil is thrown out from the oil guide groove hole 15 and collected by the oil collection assembly 16 to prevent splashing.
[0027] In this embodiment, clamp 6 is used to hold a metal tube, which is a cylindrical structure commonly used for liquid transportation. The tube end requires threading for connection. Clamp 6 is movably mounted on support 4 via optical shaft 5, allowing the metal tube to move axially to push the tube end to rotating seat 7. Rotating seat 7 is driven to rotate by drive motor 2. A thread cutter 8 is mounted on rotating seat 7 to cut the outer side of the metal tube end to form threads. A sleeve 9 is located at the center of rotating seat 7. Sleeve 9 is elastically connected to sealing assembly 11 via spring 10. Sealing assembly 11 includes baffle 12 and rubber plate 13. Baffle 12 is fixedly connected to rubber plate 13. Baffle 12 has a guide rod 14, which is movably inserted into sleeve 9, allowing sealing assembly 11 to move axially. When the metal tube is pushed to rotating seat 7 by clamp 6, the tube end abuts against sealing assembly 11. Specifically, spring 10 moves baffle 12 through elastic force, causing rubber plate 13 to press against the tube end, forming a seal. This sealing design prevents lubricating oil from entering the pipe opening and avoids contaminating the inner wall of the metal pipe, thus solving the problem of lubricating oil easily entering the pipe opening and causing time-consuming cleaning in existing technologies.
[0028] The oil nozzle 3 is mounted on the base plate 1, near the rotating seat 7, and is used to spray lubricating oil into the nozzle opening. The lubricating oil plays a role in cooling and lubrication during machining, reducing friction and heat during cutting with the thread cutter 8, and improving machining quality and tool life. The rotating seat 7 has an oil guide groove 15 on its side wall. When the rotating seat 7 rotates at high speed, the lubricating oil is thrown out from the nozzle area by centrifugal force and guided to the outside through the oil guide groove 15. The design of the oil guide groove 15 ensures that the lubricating oil is effectively guided, preventing accumulation inside the rotating seat 7.
[0029] The oil collection assembly 16 is mounted on the base plate 1, located outside the rotating seat 7, and is used to collect lubricating oil splashed out from the oil guide groove hole 15. The oil collection assembly 16 includes a collection box 17 and a flip cover 18. The collection box 17 is fixedly connected to the flip cover 18 via a hinge 19, allowing the flip cover 18 to be opened and closed for easy cleaning and maintenance. The collection box 17 has an oil outlet 20 for discharging the collected lubricating oil, which can be connected to an external container or recovery system. During processing, after the lubricating oil is splashed out from the oil guide groove hole 15, it is captured by the oil collection assembly 16, preventing lubricating oil from splashing into the surrounding environment, keeping the work area clean, and reducing cleaning workload. The flip cover 18 design of the oil collection assembly 16 allows users easy access to the interior for regular cleaning or inspection, ensuring the long-term effective operation of the assembly.
[0030] The entire embodiment operates based on a rotary sealing and centrifugal oil guiding mechanism. The clamp 6 holds and fixes the metal tube and pushes it to the rotating seat 7. The tube opening abuts against the sealing assembly 11, and the rubber plate 13, under the action of the spring 10, presses the tube opening to form a dynamic seal. The drive motor 2 drives the rotating seat 7 to rotate, causing the thread cutter 8 to cut the tube opening, while the oil nozzle 3 sprays lubricating oil to cool the processing area. As the rotating seat 7 rotates, the lubricating oil is subjected to centrifugal force and thrown out from the oil guide groove hole 15, entering the collection box 17 of the oil collection assembly 16. The oil collection assembly 16, through the structure of the collection box 17 and the flip cover 18, efficiently collects the lubricating oil and discharges it through the oil outlet 20, preventing splashing and contamination. This design not only solves the problem of lubricating oil entering the tube opening but also optimizes lubricating oil recovery and cleaning, improving processing efficiency and environmental hygiene.
[0031] Example 4:
[0032] In this embodiment, a drive motor 2, an oil injector 3, and a support 4 are fixedly mounted on the base plate 1. A clamp 6 is movably mounted on the support 4 via an optical shaft 5. The drive motor 2 drives and connects to a rotating seat 7. A thread cutter 8 is fixedly mounted on the rotating seat 7. A sleeve 9 is located at the center of the rotating seat 7. A sealing assembly 11 is elastically connected to the sleeve 9 via a spring 10. The sealing assembly 11 includes a baffle 12 and a rubber plate 13. The baffle 12 is fixedly connected to the rubber plate 13 and has a guide rod 14 that movably inserts into the sleeve 9. An oil guide groove 15 is provided on the side wall of the rotating seat 7. An oil collecting assembly 16 is fixedly mounted on the base plate 1, located outside the rotating seat 7. A transmission box 21 is fixedly mounted on the base plate 1. The transmission box 21 is equipped with a hand crank 22 and is connected to the clamp 6 via a threaded rod. The hand crank 22 allows the clamp 6 to move back and forth, pushing the end of the metal tube into the rotating seat 7 for threading, or pushing it out.
[0033] During operation, the operator first places the metal tube in the clamp 6. The clamp 6, through the movable mounting of the support 4 and the optical shaft 5, ensures that the metal tube can be stably clamped and aligned with the center of the rotating seat 7. Subsequently, the operator turns the hand crank 22, which drives the lead screw to rotate through the gear mechanism in the transmission box 21. The rotational motion of the lead screw is converted into the linear back-and-forth movement of the clamp 6. This transmission method allows the operator to precisely control the forward and backward movement of the clamp 6, thereby smoothly pushing the end of the metal tube into or out of the rotating seat 7.
[0034] When the end of the metal tube is pushed into the rotating seat 7, it contacts the sealing assembly 11. The baffle 12 in the sealing assembly 11 is elastically connected to the sleeve 9 via a spring 10. The spring 10 provides a continuous elastic force, causing the baffle 12 and its fixed rubber plate 13 to press against the edge of the metal tube end. This pressing action forms an effective seal, preventing lubricating oil from entering the tube end during subsequent processing. The movable insertion of the guide rod 14 into the sleeve 9 ensures that the sealing assembly 11 can move stably under pressure, avoiding displacement or jamming, while maintaining the reliability of the seal.
[0035] After the drive motor 2 starts, it drives the rotary seat 7 to rotate at high speed. The thread cutter 8 on the rotary seat 7 rotates accordingly and cuts the end of the metal tube to form the required thread structure. During the cutting process, the oil nozzle 3 sprays lubricating oil into the tube end area, which cools and lubricates, reduces cutting heat and friction, and improves machining quality and tool life. Under the centrifugal force of the rotary seat 7, the lubricating oil is thrown out through the oil guide groove hole 15, preventing it from accumulating inside the rotary seat 7. The thrown-out lubricating oil is collected by the oil collection assembly 16 on the base plate 1, preventing lubricating oil from splashing into the working environment or other parts of the equipment, keeping the machining area clean and safe.
[0036] With the cooperation of the hand crank 22 and the transmission box 21, the operator can reverse the hand crank 22 after processing, causing the lead screw to drive the clamp 6 backward, thereby removing the processed metal tube from the rotating seat 7. Throughout the process, the elastic compression of the sealing component 11 ensures the seal of the tube opening, effectively preventing lubricating oil from entering the inside of the metal tube, avoiding internal wall contamination and subsequent cleaning hassles. This design improves processing efficiency, reduces maintenance costs, and is suitable for threading round tubular structures in hardware parts.
[0037] Example 5:
[0038] In this embodiment, a drive motor 2, an oil nozzle 3, and a support 4 are fixedly mounted on the base plate 1. A clamp 6 is movably mounted on the support 4 via an optical shaft 5. The drive motor 2 drives and connects to a rotating seat 7. A thread cutter 8 is fixedly mounted on the rotating seat 7. A sleeve 9 is located at the center of the rotating seat 7. The sleeve 9 is elastically connected to a sealing assembly 11 via a spring 10. The sealing assembly 11 includes a baffle 12 and a rubber plate 13. The baffle 12 is fixedly connected to the rubber plate 13 and has a guide rod 14 that movably inserts into the sleeve 9. An oil guide groove 15 is provided on the side wall of the rotating seat 7. An oil collection assembly 16 is fixedly mounted on the base plate 1, located outside the rotating seat 7. When the rotating seat 7 rotates, the oil nozzle 3 sprays lubricating oil into the nozzle opening. The lubricating oil is then ejected from the oil guide groove 15 and collected by the oil collection assembly 16 to prevent splashing. The rubber plate 13 is made of soft silicone to improve sealing.
[0039] In this embodiment, the rubber plate 13 is made of soft silicone. Soft silicone has high elasticity and flexibility, and can adapt to the surface of metal tube openings of different sizes and shapes, providing a reliable sealing effect. When the clamp 6 clamps and fixes the metal tube and pushes it to the rotating seat 7, the opening of the metal tube abuts against the sealing assembly 11. The spring 10 pushes the baffle 12 through elastic force, causing the soft silicone rubber plate 13 to tightly press against the metal tube opening, forming an effective sealing barrier. This sealing method prevents lubricating oil from entering the tube opening during processing, avoiding contamination of the inner wall of the metal tube, while reducing cleaning time and costs. The material properties of soft silicone allow it to deform evenly under pressure, conforming to the uneven surface of the tube opening, enhancing the stability and durability of the seal.
[0040] During the operation of the threading machine, the drive motor 2 drives the rotating seat 7 to rotate at high speed, which in turn drives the thread cutter 8 to perform threading on the metal tube opening. The oil nozzle 3 sprays lubricating oil into the processing area for cooling and lubrication, reducing friction and heat accumulation. Due to the sealing effect of the soft silicone rubber plate 13, the lubricating oil is confined to the external processing area and cannot penetrate into the tube opening. Excess lubricating oil is ejected by centrifugal force through the oil guide groove holes 15 on the side wall of the rotating seat 7 and collected and recycled by the oil collection assembly 16, maintaining a clean working environment and preventing oil splashing and waste.
[0041] The soft silicone rubber sheet 13 also possesses wear-resistant and chemical corrosion-resistant properties, maintaining its elasticity and sealing performance over long-term use, reducing replacement frequency and maintenance costs. Furthermore, the flexibility of the soft silicone allows the sealing assembly 11 to adapt to the nozzles of various metal pipe materials, including stainless steel, copper, and aluminum pipes, ensuring effective sealing under different processing conditions. Through this design, the threading machine efficiently processes threads while solving the problem of lubricating oil contamination inside the pipe, improving processing quality and efficiency.
[0042] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0043] The above description is only used to illustrate the technical solution of this utility model and is not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.
Claims
1. A threading machine for machining metal parts on a lathe, comprising a base plate, on which a drive motor, an oil nozzle, and a support are fixedly mounted; a clamp is movably mounted on the support via an optical shaft; the drive motor drives a rotating seat; and a thread cutter is fixedly mounted on the rotating seat. The machine is characterized in that... A sleeve is provided at the center of the rotating seat. The sleeve is elastically connected to a sealing assembly via a spring. The sealing assembly includes a baffle and a rubber plate. The baffle is fixedly connected to the rubber plate. The baffle is provided with a guide rod, which is movably inserted into the sleeve. The side wall of the rotating seat is provided with an oil guide groove. An oil collection assembly is fixedly installed on the bottom plate located outside the rotating seat.
2. The threading machine for machining metal parts on a lathe according to claim 1, characterized in that, The oil collection assembly includes a collection box and a flip cover. The collection box is fixedly connected to the flip cover by a hinge, and the collection box is provided with an oil outlet.
3. A threading machine for machining metal parts on a lathe according to claim 1, characterized in that, A transmission box is fixedly installed on the base plate. The transmission box is equipped with a hand crank and is connected to the clamp via a lead screw.
4. A threading machine for machining metal parts on a lathe according to claim 1, characterized in that, The material of the adhesive sheet is soft silicone.