A tungsten electrode sizing and cutting device
By designing a tungsten electrode length-cutting device, the problems of low cutting accuracy and low safety of tungsten electrodes were solved, achieving a stable welding arc and an efficient production process, thus ensuring the accuracy and safety of tungsten electrode cutting.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 沈阳融创精密制造有限公司
- Filing Date
- 2025-06-23
- Publication Date
- 2026-06-02
AI Technical Summary
In existing technologies, tungsten electrodes suffer from low length cutting precision, poor end face quality, and low safety, leading to unstable welding arcs and affecting welding quality and production efficiency.
A tungsten electrode length-cutting device was designed. Through precise dimensional positioning, stable cutting feed, and convenient operation, combined with effective safety protection measures, it achieves stable cutting and smooth end face of tungsten electrodes. The combination structure of measuring device and cutting blade ensures cutting accuracy and safety.
This technology achieves a tungsten electrode cutting dimensional error within ±0.5mm, ensuring the stability of the welding arc and the flatness of the tungsten electrode end face, improving welding quality and production efficiency, while avoiding metal spatter injury to operators and enhancing safety.
Smart Images

Figure CN224309336U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of welding auxiliary tools, specifically to a tungsten electrode length-cutting device. Background Technology
[0002] Rotary arc automatic argon arc welding, an automated tungsten inert gas (TIG) welding method using rotating electrodes, has been widely used in the field of metal conduit welding. In this welding method, a tungsten electrode is fixed in a circumferentially rotating track, and the axis of the metal conduit to be welded is coaxial with the track. When an electric arc is generated, the tungsten electrode rotates along the track, thereby welding the circumferential weld seam of the pipe.
[0003] In actual welding operations, the length of the tungsten electrode needs to be adjusted before welding to meet the clearance requirements between its end and metal conduits of different specifications. This clearance is a direct factor affecting the welding arc. If the welding arc is too long or too short, it will adversely affect the weld quality.
[0004] Currently, the length of tungsten electrodes is usually ensured by manual mechanical cutting. However, this manual cutting method has many drawbacks: (1) Low cutting accuracy: Manual cutting requires human control, making it difficult to ensure the accuracy of the cutting dimensions, resulting in a large error in the length of the tungsten electrode, which in turn makes the welding arc length unstable and affects the welding quality; (2) Poor end face quality: Manual cutting makes it difficult to ensure the flatness of the end face of the tungsten electrode, which is prone to tilting and unevenness, which is not conducive to the adjustment of the tungsten electrode in the equipment and reduces production efficiency; (3) Low safety: Metal spatter is generated when cutting and repairing tungsten electrodes, which can easily cause injury to the operator and is not conducive to safe production.
[0005] Therefore, in order to solve the above problems, a device is needed that can achieve stable, fixed-size cutting of tungsten electrodes, while ensuring the smoothness of the tungsten electrode end face, and is convenient and safe to use. Summary of the Invention
[0006] To address the aforementioned issues, this invention provides a tungsten electrode length-cutting device. This device, through precise dimensional positioning, stable cutting feed, convenient operation, and effective safety protection measures, solves the problems of low precision, poor end-face quality, and low safety associated with manual tungsten electrode cutting, thereby improving welding quality and production efficiency.
[0007] The technical solution of this utility model is as follows:
[0008] A tungsten electrode length-cutting device includes a positioning seat and a cutting seat. The positioning seat has a mounting hole for mounting a tungsten electrode blank to be cut. A measuring device that can be adjusted in position along the axis of the mounting hole is mounted on the positioning seat. The measuring device includes a positioning plate, which is perpendicular to the axis of the mounting hole. After the tungsten electrode blank to be cut passes through the mounting hole, its end rests on the positioning plate. The cutting seat includes a cutting seat base and a cutting blade. The cutting blade is rotatably mounted on the cutting seat base. The positioning seat is movably connected to the cutting seat through a positioning guide mechanism and can be fed toward the cutting blade. The positioning seat is provided with a clearance groove to provide working space for the cutting blade.
[0009] The measuring instrument also includes a scale plate, which is perpendicular to the axis of the mounting hole and has graduation lines.
[0010] The scale plate has graduation lines on both the top and front.
[0011] The accuracy of the scale lines is 1mm.
[0012] The measuring instrument also includes a connecting platform, which is fixedly connected to the back of the scale plate and is set parallel to the axis of the mounting hole. A connecting groove that slides with the connecting platform is provided on the positioning seat.
[0013] The positioning seat is provided with a fastening threaded hole, and a set screw is installed in the fastening threaded hole. The end of the set screw abuts against the side of the connecting table to fasten the measuring instrument to the positioning seat.
[0014] The cutting disc is fixedly connected to the end of the connecting shaft, which is rotatably mounted on the cutting base.
[0015] The connecting shaft is mounted in the bearing mounting hole of the cutting seat base via a bearing.
[0016] The cutting disc is equipped with a protective cover plate, which is fixedly installed at the opening of the cutting base.
[0017] The positioning and guiding mechanism includes a guide groove and a positioning surface set on the cutting base, as well as a web plate and a portal plate that make up the positioning base. Portal plates are fixedly connected to both sides of the web plate. The web plate and the guide groove cooperate to slide and feed along the guide groove towards the cutting blade. Positioning surfaces are set at both ends of the cutting base, and the inner sides of the portal plates on both sides cooperate with the positioning surfaces.
[0018] The beneficial effects of this utility model are as follows:
[0019] 1. This utility model discloses a tungsten electrode length-cutting device. This tungsten electrode length-cutting device can accurately position the tungsten electrode blank to be cut by means of a positioning plate and a scale plate on the measuring device. The scale lines set on the scale plate allow the operator to accurately determine the cutting length of the tungsten electrode, thereby controlling the dimensional error of the tungsten electrode after cutting within ±0.5mm. This effectively solves the problem of large length error of tungsten electrodes when cutting manually, ensures the stability of the welding arc length, and thus improves the welding quality.
[0020] 2. The present invention discloses a tungsten electrode length-cutting device. In this tungsten electrode length-cutting device, the positioning seat is movably connected to the cutting seat through a positioning guide mechanism and can feed toward the cutting blade, ensuring the vertical angle and stability of the cutting feed. At the same time, the clearance groove provided on the positioning seat provides working space for the cutting blade, so that the cutting blade can cut the tungsten electrode vertically, thereby ensuring the flatness of the tungsten electrode cutting end face, which is beneficial to the adjustment of the tungsten electrode in the equipment and improves the installation efficiency.
[0021] 3. The present invention discloses a tungsten electrode length-cutting device, in which the measuring tool can slide arbitrarily in the connecting groove of the positioning seat. The operator can quickly adjust the position of the measuring tool as needed, thereby quickly obtaining the required tungsten electrode length, making the device more convenient to use and improving work efficiency.
[0022] 4. The present invention discloses a tungsten electrode length-cutting device. The cutting base and the protective cover plate of the tungsten electrode length-cutting device form a relatively closed space. The metal spatter generated during the cutting of the tungsten electrode is effectively blocked by the protective cover plate, avoiding the impact of metal spatter on the operator and the surrounding environment, and improving the safety of the device in use. Attached Figure Description
[0023] The advantages and solutions of this application will become clear to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this invention.
[0024] In the attached diagram:
[0025] Figure 1 This is a three-dimensional structural diagram of a tungsten electrode length-cutting device according to an embodiment of the present invention;
[0026] Figure 2 This is a three-dimensional structural diagram of a positioning seat for a tungsten electrode length-cutting device according to an embodiment of the present utility model;
[0027] Figure 3This is a three-dimensional structural diagram of the measuring instrument of a tungsten electrode length-cutting device according to an embodiment of the present invention;
[0028] Figure 4 This is a three-dimensional exploded view of the cutting seat of a tungsten electrode length-cutting device according to an embodiment of the present invention;
[0029] Figure 5 This is a three-dimensional structural diagram of the cutting seat base of a tungsten electrode length cutting device according to an embodiment of the present invention;
[0030] Figure 6 This is a three-dimensional structural diagram of the protective cover plate of the cutting seat of a tungsten electrode length-cutting device according to an embodiment of the present invention.
[0031] Figure 7 This is a three-dimensional structural diagram of the connecting shaft of the cutting seat of a tungsten electrode length-cutting device according to an embodiment of the present invention.
[0032] Figure 8 This is a front view of the cutting disc of the cutting seat of a tungsten electrode length-cutting device according to an embodiment of the present invention;
[0033] Figure 9 This is a three-dimensional half-section structural diagram of a tungsten electrode length-cutting device according to an embodiment of the present invention;
[0034] The components represented by the various reference numerals in the diagram are:
[0035] This utility model includes: 1. a positioning seat, 2. a measuring ruler, and 3. a cutting seat;
[0036] 11. Web plate; 12. Portal plate; 13. Connecting groove; 14. Fastening threaded hole; 15. Mounting hole; 16. Clearance groove; 17. Set screw.
[0037] 21. Connecting platform; 22. Positioning plate; 23. Scale plate;
[0038] 31. Cutting base; 32. Connecting shaft; 33. Cutting blade; 34. Protective cover plate; 35. Bearing;
[0039] 311. Threaded hole; 312. Bearing mounting hole; 313. Guide groove; 314. Positioning surface;
[0040] 321. Threaded column;
[0041] 331. Through Hole I;
[0042] 341. Through hole II. Detailed Implementation
[0043] like Figure 1 and Figure 9As shown, the tungsten electrode length cutting device mainly consists of three parts: positioning seat 1, measuring instrument 2, and cutting seat 3.
[0044] like Figure 2 As shown, the positioning seat 1 is machined as a whole to ensure its accuracy and stability; the positioning seat 1 is provided with a mounting hole 15 for mounting the tungsten electrode blank to be cut; the positioning seat 1 is also provided with a connecting groove 13 that slides with the measuring tool 2, and a fastening threaded hole 14 for fastening the measuring tool 2; in addition, the positioning seat 1 is also provided with a clearance groove 16 to provide working space for the cutting blade 33.
[0045] The positioning seat 1 is specifically composed of a web plate 11 and a portal plate 12. The portal plates 12 are fixedly connected to both sides of the web plate 11. The web plate 11 cooperates with the guide groove 313 on the cutting seat base 31 and can slide and feed along the guide groove 313 toward the cutting blade 33. Positioning surfaces 314 are provided at both ends of the cutting seat base 31. The inner sides of the portal plates 12 on both sides of the positioning seat 1 cooperate with the positioning surfaces 314 to ensure the stable feeding of the positioning seat 1.
[0046] like Figure 3 As shown, the measuring instrument 2 includes a connecting platform 21, a positioning plate 22, and a scale plate 23. The connecting platform 21 is fixedly connected to the back of the scale plate 23, is arranged parallel to the axis of the mounting hole 15, and slides in cooperation with the connecting groove 13 on the positioning seat 1. The positioning plate 22 is arranged perpendicular to the axis of the mounting hole 15. After the tungsten electrode blank is cut and passes through the mounting hole 15, its end rests on the positioning plate 22, thereby achieving dimensional positioning.
[0047] The scale plate 23 is provided with graduation lines with an accuracy of 1mm. For easy observation, graduation lines are provided on the top and front of the scale plate 23. A set screw 17 is installed in the fastening threaded hole 14 of the positioning seat 1. The end of the set screw 17 abuts against the side of the connecting table 21 to fasten the measuring instrument 2 to the positioning seat 1. When it is necessary to adjust the position of the measuring instrument 2, simply loosen the set screw 17, slide the measuring instrument 2 to the desired position, and then tighten it again.
[0048] See Figures 4 to 8 The cutting base 3 includes a cutting base body 31, a connecting shaft 32, a cutting blade 33, and a protective cover plate 34. The cutting blade 33 is fixedly connected to the end of the connecting shaft 32, and the connecting shaft 32 is rotatably installed in the bearing mounting hole 312 of the cutting base body 31 through a bearing 35. The connecting shaft 32 is connected to an external drive source such as the output shaft of a motor. When the cutting device is started, the cutting blade 33 rotates at high speed under the drive of the connecting shaft 32 to cut the tungsten electrode.
[0049] To protect operators and the surrounding environment, a protective cover plate 34 is provided on the outside of the cutting disc 33. The protective cover plate 34 is fixedly installed at the opening of the cutting base 31, which can effectively block metal spatter generated during the cutting process.
[0050] In use, first, pass the tungsten electrode blank to be cut through the mounting hole 15 of the positioning seat 1, so that its end rests on the positioning plate 22 of the measuring instrument 2; adjust the position of the measuring instrument 2 according to the required cutting length, and fasten it to the positioning seat 1 with the set screw 17; then, start the cutting device, push the positioning seat 1 to slide along the guide groove 313 on the cutting seat base 31 towards the cutting blade 33 until the tungsten electrode is cut to the required length by the cutting blade 33; during the cutting process, the protective cover plate 34 effectively blocks metal splashes to ensure operational safety. Example
[0051] The tungsten electrode length-cutting device includes a positioning seat 1, a cutting seat 3, and a measuring instrument 2.
[0052] The positioning seat 1 is provided with a web plate 11 and a portal plate 12 and a connecting groove 13 is opened on the top. The measuring instrument 2 is provided with a connecting platform 21, a positioning plate 22 and a scale plate 23. The connecting platform 21 cooperates with the connecting groove 13. The cutting seat 3 is provided with a cutting seat base 31, a cutting blade 33, a connecting shaft 32 and a protective cover plate 34. The cutting seat base 31 cooperates with the web plate 11 and the portal plate 12.
[0053] The connecting platform 21, positioning plate 22, and scale plate 23 in the measuring device 2 are machined as a whole, ensuring the fit dimensions between the connecting platform 21 and the connecting groove 13. After the connecting platform 21 is inserted into the connecting groove 13, the measuring device 1 can be slidably adjusted. The two end faces of the gate plate 12 serve as reference surfaces and correspond to the scale lines on the scale plate 11. This reading is the length of the tungsten electrode to be cut. The reference value A set on the scale plate 23 is the minimum size that can be cut, that is, the length of the tungsten electrode to be cut determined when the positioning plate 22 is attached to the gate plate 12.
[0054] To improve working accuracy, the positioning plate 22 and the scale plate 23 are perpendicular to each other, and the scale lines are set along both the front and top surfaces of the scale plate 23, with a graduation value of 1mm.
[0055] The positioning seat 1 is provided with a tungsten electrode mounting hole 15, through which the tungsten electrode blank passes until it is tightly attached to the positioning plate 22; the positioning seat 1 is provided with eight fastening threaded holes 14, and the measuring instrument 2 and the tungsten electrode blank can be fixed by screwing in the set screws 17.
[0056] The connecting shaft 32 and the cutting base 31 are connected by two deep groove ball bearings 35; a through hole I 331 is opened in the center of the cutting disc 33, and the threaded post 321 of the connecting shaft 32 passes through the through hole I 331 and is fixed by a common nut; the other end of the connecting shaft 32 is connected to a conventional electromechanical device (such as a motor) to provide control and rotation power for the cutting disc 33; the inner contour of the cutting base 31 provides working space for the cutting disc 33, and the outer contour of the cutting base 31 cooperates with the positioning seat 1 to provide the feeding direction.
[0057] The web plate 11 and the portal plate 12 in the positioning seat 1 are integrally machined and vertically set. The portal plate 12 is closely attached to the positioning surface 314 of the end face of the cutting seat base 31. The web plate 11 can be vertically inserted into the cutting seat base 31 to ensure the vertical angle of the tungsten electrode blank cutting feed, so that the end face of the tungsten electrode after cutting is flush. A clearance groove 16 is opened in the web plate 11 to provide working space for the cutting blade 33. During operation, the web plate 11 is inserted into the cutting seat base 31, and the rotating cutting blade 33 cuts the tungsten electrode in the clearance groove 16 to achieve fixed-length cutting.
[0058] The cutting base 31 has three threaded holes 311 at one end, and the protective cover plate 34 has three through holes II 341. The threaded holes 311 and the through holes II 341 are matched. The protective cover plate 34 is fixed to the cutting base 31 by ordinary bolts commonly used in the market. The metal spatter generated during cutting will be blocked by the protective cover plate 34.
[0059] This tungsten electrode length-cutting device can achieve stable, fixed-size cutting of tungsten electrodes. It is fast, efficient, safe, and stable, solving the problem of inconsistent welding arc lengths caused by replacing tungsten electrodes and improving welding quality.
Claims
1. A tungsten electrode length-cutting device, characterized in that, The device includes a positioning seat (1) and a cutting seat (3). The positioning seat (1) is provided with a mounting hole (15) for mounting the tungsten electrode blank to be cut. The positioning seat (1) is provided with a measuring tool (2) that can be adjusted along the axis of the mounting hole (15). The measuring tool (2) includes a positioning plate (22). The positioning plate (22) is set perpendicular to the axis of the mounting hole (15). After the tungsten electrode blank to be cut passes through the mounting hole (15), its end rests on the positioning plate (22). The cutting seat (3) includes a cutting seat base (31) and a cutting blade (33). The cutting blade (33) is rotatably mounted on the cutting seat base (31). The positioning seat (1) is movably connected to the cutting seat (3) through a positioning guide mechanism and can be fed toward the cutting blade (33). The positioning seat (1) is provided with a clearance groove (16) to provide working space for the cutting blade (33).
2. The tungsten electrode length-cutting device according to claim 1, characterized in that, The measuring instrument (2) also includes a scale plate (23), which is perpendicular to the axis of the mounting hole (15) and has scale lines.
3. The tungsten electrode length-cutting device according to claim 2, characterized in that, The scale plate (23) has scale lines on its top and front.
4. A tungsten electrode length-cutting device according to claim 2 or 3, characterized in that, The accuracy of the scale lines is 1 mm.
5. A tungsten electrode length-cutting device according to claim 2, characterized in that, The measuring instrument (2) also includes a connecting platform (21), which is fixedly connected to the back of the scale plate (23) and is set parallel to the axis of the mounting hole (15). A connecting groove (13) that slides with the connecting platform (21) is provided on the positioning seat (1).
6. A tungsten electrode length-cutting device according to claim 2, characterized in that, The positioning seat (1) is provided with a fastening threaded hole (14), and a set screw (17) is installed in the fastening threaded hole (14). The end of the set screw (17) abuts against the side of the connecting table (21) to fasten the measuring instrument (2) onto the positioning seat (1).
7. A tungsten electrode length-cutting device according to claim 1, characterized in that, The cutting blade (33) is fixedly connected to the end of the connecting shaft (32), which is rotatably mounted on the cutting base (31).
8. A tungsten electrode length-cutting device according to claim 7, characterized in that, The connecting shaft (32) is mounted in the bearing mounting hole (312) of the cutting seat base (31) via a bearing (35).
9. A tungsten electrode length-cutting device according to claim 7, characterized in that, The cutting blade (33) is provided with a protective cover plate (34) on its exterior, and the protective cover plate (34) is fixedly installed at the opening of the cutting base (31).
10. A tungsten electrode length-cutting device according to claim 1, characterized in that, The positioning and guiding mechanism includes a guide groove (313) and a positioning surface (314) provided on the cutting base (31), as well as a web plate (11) and a portal plate (12) that make up the positioning base (1). The portal plates (12) are fixedly connected to both sides of the web plate (11). The web plate (11) and the guide groove (313) cooperate to slide and feed along the guide groove (313) toward the cutting blade (33). The positioning surface (314) is provided at both ends of the cutting base (31), and the inner side of the portal plate (12) on both sides cooperates with the positioning surface (314).