Electrode arm anti-rotation mechanism
By setting a copper sleeve and a flat anti-rotation step in the inner cavity of the aluminum arm on the electrode arm, and fixing the electrode arm with an M10 flat end face set screw, the deflection problem of traditional electrode arm devices when they are eccentric or exposed too long is solved, and a stable welding effect is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-17
- Publication Date
- 2026-04-03
AI Technical Summary
Traditional electrode arm devices cannot provide sufficient clamping when they are eccentric or the electrode arm is exposed too long, resulting in unstable welding quality or even equipment failure.
An anti-rotation mechanism for an electrode arm was designed. By setting a copper sleeve and a planar anti-rotation step in the inner cavity of the upper aluminum arm, and using an M10 flat end face set screw to fix the electrode arm body, it is ensured that it does not deflect during use.
It effectively avoids electrode arm deflection, ensures stable welding quality, prevents equipment failure, and improves the installation stability of the electrode arm.
Smart Images

Figure CN224073636U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electrode arm technology, specifically to an electrode arm anti-rotation mechanism. Background Technology
[0002] An electrode arm is a device used to transmit current and pressure, typically mounted on welding equipment or an electric furnace. In welding equipment, the electrode arm is used to mount electrodes or electrode holders, and its main functions are to conduct current, apply pressure, and adjust the electrode position.
[0003] Traditional electrode arm devices are often directly mounted on the aluminum arm of the welding equipment. When the welding clamp encounters a situation that requires an eccentric electrode arm or when the electrode arm is exposed for a long time, the standard electrode arm locking method cannot fully clamp the electrode arm. When the welding clamp applies pressure during welding, the electrode arm may rotate and shift due to excessive torque. This can lead to unstable welding quality or even equipment failure. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides an electrode arm anti-rotation mechanism, which has the advantages of good fixing effect and convenient use, and solves the problems mentioned in the background technology.
[0005] This utility model provides the following technical solution: an electrode arm anti-rotation mechanism, including a mounting frame, a lower aluminum arm rotatably connected to the outer wall of the mounting frame, an upper aluminum arm mounted on the outer wall of the mounting frame, an electrode arm body mounted in the inner cavity of the upper aluminum arm, an electric push cylinder mounted at the bottom of the mounting frame, a support frame fixedly mounted at the bottom of the mounting frame, an electrode post fixedly mounted on the outer wall of the electrode arm body, a planar anti-rotation step formed on the outer wall of the electrode arm body, a copper sleeve mounted in the inner cavity of the upper aluminum arm, and an M10 flat-end set screw threaded to the outer wall of the upper aluminum arm.
[0006] As a preferred technical solution of this utility model: the inner cavity of the lower aluminum arm is equipped with an electrode arm body, and the output end of the electric push cylinder is connected to the outer wall of the lower aluminum arm.
[0007] As a preferred technical solution of this utility model: the outer wall shape of the electrode arm body matches the inner wall shape of the copper sleeve, and the M10 flat end face set screw passes through the outer wall of the upper aluminum arm and the copper sleeve and contacts the outer wall of the electrode arm body.
[0008] As a preferred technical solution of this utility model: the installation position of the M10 flat end face top screw corresponds to the opening position of the plane anti-rotation step, and the outer wall of the M10 flat end face top screw is in contact with the outer wall of the plane anti-rotation step.
[0009] As a preferred technical solution of this utility model: there are two M10 flat end face set screws, and the two M10 flat end face set screws are respectively installed on both sides of the outer wall of the upper aluminum arm.
[0010] As a preferred technical solution of this utility model: the outer wall shape of the copper sleeve matches the inner wall shape and size of the upper aluminum arm.
[0011] Compared with the prior art, the present invention has the following beneficial effects:
[0012] 1. The electrode arm anti-rotation mechanism uses a copper sleeve installed in the inner cavity of the upper aluminum arm. When installing the electrode arm body, the electrode arm body is inserted into the copper sleeve, so that the outer wall of the electrode arm body enters the inner cavity of the copper sleeve. Then, by rotating the M10 flat end face set screw, the M10 flat end face set screw passes through the outer wall of the upper aluminum arm and the copper sleeve respectively, so that the outer wall of the M10 flat end face set screw fits against the outer wall of the electrode arm body, thereby fixing the electrode arm body from both sides and preventing the electrode arm body from deflecting during use.
[0013] 2. The electrode arm anti-rotation mechanism, through the planar anti-rotation step opened on the outer wall of the electrode arm body, when the M10 flat end face set screw is rotated, makes the outer wall of the M10 flat end face set screw fit against the planar anti-rotation step. At this time, the outer wall of the planar anti-rotation step and the outer wall of the M10 flat end face set screw are parallel to each other, thereby better preventing the electrode arm body from deflecting, thus better restricting the electrode arm body and preventing it from rotating, thereby fixing the electrode arm and preventing it from rotating. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0015] Figure 2 This is a schematic diagram of the upper aluminum arm structure of this utility model;
[0016] Figure 3 This is a schematic diagram of the cross-sectional structure of the upper aluminum arm of this utility model;
[0017] Figure 4 This is a schematic diagram of the electrode arm structure of this utility model.
[0018] In the diagram: 1. Mounting bracket; 2. Lower aluminum arm; 3. Upper aluminum arm; 4. Electrode arm body; 5. Electric push cylinder; 6. Support frame; 7. Electrode post; 8. Planar anti-rotation step; 9. Copper sleeve; 10. M10 flat end face set screw. Detailed Implementation
[0019] 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.
[0020] Please see Figure 1 - Figure 4 An electrode arm anti-rotation mechanism includes a mounting frame 1, a lower aluminum arm 2 rotatably connected to the outer wall of the mounting frame 1, an upper aluminum arm 3 mounted on the outer wall of the mounting frame 1, an electrode arm body 4 mounted in the inner cavity of the upper aluminum arm 3, an electric push cylinder 5 mounted at the bottom of the mounting frame 1, a support frame 6 fixedly mounted at the bottom of the mounting frame 1, an electrode post 7 fixedly mounted on the outer wall of the electrode arm body 4, a planar anti-rotation step 8 formed on the outer wall of the electrode arm body 4, a copper sleeve 9 mounted in the inner cavity of the upper aluminum arm 3, and an M10 flat end face set screw 10 threadedly connected to the outer wall of the upper aluminum arm 3.
[0021] In the above structure, the lower aluminum arm 2 and the upper aluminum arm 3 are respectively provided on the outer wall of the mounting frame 1, and the electrode arm body 4 is provided in the inner cavity of the lower aluminum arm 2 and the upper aluminum arm 3. The electrode arm body 4 is used to weld the connection part of the plate to achieve the corresponding connection effect and weld the plate.
[0022] In a preferred embodiment: the inner cavity of the lower aluminum arm 2 is equipped with an electrode arm body 4, and the output end of the electric push cylinder 5 is connected to the outer wall of the lower aluminum arm 2.
[0023] In the above structure, by setting an electric push cylinder 5 on the outer wall of the mounting frame 1 and connecting the output end of the electric push cylinder 5 to the outer wall of the lower aluminum arm 2, the lower aluminum arm 2 can rotate on the outer wall of the mounting frame 1 under the action of the electric push cylinder 5, thereby adjusting the distance between the lower aluminum arm 2 and the upper aluminum arm 3, so as to better realize the welding of the plate joint.
[0024] In a preferred embodiment: the outer wall shape of the electrode arm body 4 matches the inner wall shape of the copper sleeve 9, and the M10 flat end face set screw 10 passes through the outer wall of the upper aluminum arm 3 and the copper sleeve 9 and contacts the outer wall of the electrode arm body 4.
[0025] In the above structure, a copper sleeve 9 is provided in the inner cavity of the upper aluminum arm 3, and the electrode arm body 4 is inserted into the inner cavity of the copper sleeve 9. The copper sleeve 9 fixes the electrode arm body 4, so that the electrode arm body 4 can be stably installed in the inner cavity of the copper sleeve 9, which facilitates better welding work.
[0026] In a preferred embodiment: the installation position of the M10 flat end face top screw 10 corresponds to the opening position of the planar anti-rotation step 8, and the outer wall of the M10 flat end face top screw 10 is in contact with the outer wall of the planar anti-rotation step 8.
[0027] In the above structure, by providing a planar anti-rotation step 8 on the outer wall of the electrode arm body 4 and an M10 flat-end set screw 10 on the outer wall of the upper aluminum arm 3, when the M10 flat-end set screw 10 is rotated, the M10 flat-end set screw 10 passes through the outer walls of the upper aluminum arm 3 and the copper sleeve 9 respectively and contacts the outer wall of the planar anti-rotation step 8, thereby fixing the electrode arm body 4 and making the electrode arm body 4 stably fixed in the inner cavity of the upper aluminum arm 3.
[0028] In a preferred embodiment, there are two M10 flat-end set screws 10, and the two M10 flat-end set screws 10 are respectively installed on both sides of the outer wall of the upper aluminum arm 3.
[0029] In the above structure, by installing M10 flat-end set screws 10 on both sides of the outer wall of the upper aluminum arm 3, and by rotating the M10 flat-end set screws 10 on both sides, the outer wall of the M10 flat-end set screws 10 contacts the outer wall of the planar anti-rotation step 8, thereby fixing the electrode arm body 4 and ensuring that the installation angle of the electrode arm body 4 will not deflect, thus ensuring that the lower aluminum arm 2 and the upper aluminum arm 3 can better weld the plate.
[0030] In a preferred embodiment, the outer wall shape of the copper sleeve 9 matches the inner wall shape and size of the upper aluminum arm 3.
[0031] In the above structure, the outer wall of the electrode arm body 4 is inserted into the inner cavity of the copper sleeve 9 provided in the inner cavity of the upper aluminum arm 3, and the outer wall of the M10 flat end face set screw 10 is made to fit against the outer wall of the electrode arm body 4 by rotating the M10 flat end face set screw 10, thereby realizing the installation and fixation of the electrode arm body 4 and ensuring that the electrode arm body 4 will not deflect during use.
[0032] Working Principle: During use, when it is necessary to fix the electrode arm body 4 inside the upper aluminum arm 3 and lower aluminum arm 2, the electrode arm body 4 is inserted into the inner cavity of the copper sleeve 9. Then, by rotating the M10 flat-end set screw 10, the outer wall of the M10 flat-end set screw 10 passes through the outer walls of the upper aluminum arm 3 and the copper sleeve 9 and enters the inner cavity of the copper sleeve 9. This makes the outer wall of the M10 flat-end set screw 10 contact the outer wall of the planar anti-rotation step 8. At this time, the electrode arm body 4 is fixed by the action of the M10 flat-end set screw 10, so that the electrode arm body 4 will not be fixed after being installed in the inner cavity of the copper sleeve 9. Even when the eccentric electrode arm body 4 is required or when a long portion of the electrode arm body 4 is exposed, the electrode arm body 4 will not rotate within the inner cavity of the upper aluminum arm 3, ensuring the stability of the upper aluminum arm 3 installation. Subsequently, the lower aluminum arm 2 and the upper aluminum arm 3 can be used to weld the connection between the plates, ensuring the normal operation of the equipment. Similarly, an M10 flat-end set screw 10 is also provided on the outer wall of the lower aluminum arm 2. Under the action of the M10 flat-end set screw 10, the electrode arm body 4 in the inner cavity of the lower aluminum arm 2 is fixed, preventing the electrode arm body 4 in the inner cavities of the upper aluminum arm 3 and the lower aluminum arm 2 from deflecting.
[0033] 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An electrode arm anti-rotation mechanism, comprising a mounting bracket (1), characterized in that: The mounting bracket (1) is rotatably connected to a lower aluminum arm (2), the mounting bracket (1) is mounted to an upper aluminum arm (3), the inner cavity of the upper aluminum arm (3) is mounted to an electrode arm body (4), the bottom of the mounting bracket (1) is mounted to an electric push cylinder (5), the bottom of the mounting bracket (1) is fixedly fitted to a support frame (6), the outer wall of the electrode arm body (4) is fixedly fitted to an electrode column (7), the outer wall of the electrode arm body (4) is provided with a planar anti-rotation step (8), the inner cavity of the upper aluminum arm (3) is fitted to a copper sleeve (9), and the outer wall of the upper aluminum arm (3) is threadedly connected to an M10 flat end face set screw (10).
2. The electrode arm anti-rotation mechanism according to claim 1, characterized in that: The inner cavity of the lower aluminum arm (2) is equipped with an electrode arm body (4), and the output end of the electric push cylinder (5) is connected to the outer wall of the lower aluminum arm (2).
3. The electrode arm anti-rotation mechanism according to claim 1, characterized in that: The outer wall shape of the electrode arm body (4) matches the inner wall shape of the copper sleeve (9), and the M10 flat end face set screw (10) passes through the outer wall of the upper aluminum arm (3) and the copper sleeve (9) and contacts the outer wall of the electrode arm body (4).
4. The electrode arm anti-rotation mechanism according to claim 1, characterized in that: The installation position of the M10 flat end face top screw (10) corresponds to the opening position of the plane anti-rotation step (8), and the outer wall of the M10 flat end face top screw (10) is in contact with the outer wall of the plane anti-rotation step (8).
5. The electrode arm anti-rotation mechanism according to claim 1, characterized in that: There are two M10 flat end face set screws (10), and the two M10 flat end face set screws (10) are respectively installed on both sides of the outer wall of the upper aluminum arm (3).
6. The electrode arm anti-rotation mechanism according to claim 1, characterized in that: The outer wall shape of the copper sleeve (9) matches the inner wall shape and size of the upper aluminum arm (3).