Wrench for disassembling and assembling electrode cap of electrode holder

Abstract

The utility model discloses a wrench for disassembling and assembling an electrode cap of an electrode holder, which comprises an upper arm and a lower arm which are mutually crossed and are connected through a rotating shaft at the crossed position, an arc-shaped groove is formed in one end of the upper arm and faces the side where the lower arm is located; an arc-shaped groove corresponding to the upper arm is formed in one end, close to the arc-shaped groove of the upper arm, of the lower arm and faces the side where the upper arm is located, and bayonet flanges which protrude inwards and are matched with the arc-shaped grooves in radian are arranged in the two arc-shaped grooves; the arc-shaped grooves of the upper arm and the lower arm are mutually spliced to jointly form a U-shaped groove with an opening facing the outer side, and the two bayonet flanges jointly form a U-shaped bayonet flange with an opening facing the outer side; the rotating shaft is located on the side close to the arc-shaped groove. The structures of the upper arm and the lower arm correspond to each other; the bayonet flange is arranged in the U-shaped groove between the upper arm and the lower arm of the wrench, force is applied by hand holding, the bayonet flange generates relative movement in the vertical direction, and then the electrode cap is separated from the electrode rod or the electrode arm.

Description

Technical Field

[0001] The utility model belongs to the field of electrode cap disassembly and assembly, and particularly relates to a welding clamp electrode cap disassembly and assembly wrench. Background Art

[0002] An electrode cap is a type of welding electrode primarily used in resistance welding equipment, such as fixed spot welders, suspended spot welders, and robotic spot welders. Because it fits over the electrode connecting rod, it's called an electrode cap. Electrode caps are typically made of chromium-zirconium copper, but dispersed copper is also available. In the automotive body welding process, electrode caps are a crucial component of automated production equipment, and their assembly and disassembly techniques are crucial for improving production efficiency. Electrode cap removal can be performed using an electrode cap removal machine, an auxiliary device for robotic resistance welding automation. These machines offer high efficiency and a high disassembly success rate. These machines utilize a combination of components, including a lifting cylinder, fixed plate, movable plate, and clamping jaws, to quickly remove and install the electrode cap. Other electrode cap replacement devices utilize a support frame, rotating mechanism, electric push rod, movable platform, and clamping assembly to facilitate replacement. However, these electrode cap removal devices are complex, difficult to operate, and expensive to manufacture.

[0003] Chinese patent publication number CN219170729U discloses an electrode cap removal wrench, which clamps the electrode cap by cooperating with a limit block and a lifting block, and then drives the lifting block to move up and down by operating the handle to achieve the purpose of removing the electrode cap. That is, the limit block and the lifting block need to be separated by a certain distance so that they can accommodate the electrode cap before removal. The overall structure is complex and the operation is cumbersome. Summary of the Invention

[0004] In response to the problems in the related technology, the utility model proposes a welding clamp electrode cap disassembly wrench. By setting a bayonet flange in the U-shaped groove between the upper and lower arms of the wrench, force is applied by hand to make the bayonet flange move relative to each other in the vertical direction, thereby separating the electrode cap from the electrode rod or electrode arm.

[0005] The utility model is achieved in this way:

[0006] A welding clamp electrode cap disassembly and assembly wrench comprises an upper arm and a lower arm, wherein the upper arm and the lower arm intersect with each other and are connected at the intersection position by a rotating shaft;

[0007] One end of the upper arm is provided with an arc-shaped groove on the side where the lower arm is located; the end of the lower arm close to the arc-shaped groove of the upper arm is provided with an arc-shaped groove corresponding to the upper arm on the side where the upper arm is located, and both of the arc-shaped grooves are provided with a bayonet flange that protrudes inward and adapts to the curvature of the arc-shaped groove; the arc-shaped grooves of the upper and lower arms are spliced ​​together to form a U-shaped groove open to the outside, and the two bayonet flanges together form a U-shaped bayonet flange open to the outside; the rotating shaft is located on the side close to the arc-shaped groove; the structures of the upper arm and the lower arm correspond to each other.

[0008] The electrode cap is arranged on the electrode rod or the electrode arm. A recessed area is provided between the electrode cap and the electrode rod or the electrode arm. The recessed area is a tapered fitting area.

[0009] Place the electrode cap in the U-shaped groove so that the U-shaped bayonet flange is stuck in the recessed area between the electrode cap and the electrode rod or electrode arm; by holding the upper and lower arms away from one end of the U-shaped groove, the upper and lower arms are brought close to each other around the rotation axis, the bayonet flange of the upper arm pushes the electrode cap upward, and the bayonet flange of the lower arm presses against the motor rod or electrode arm downward, so that the electrode cap and the electrode rod or electrode arm are separated from each other.

[0010] Preferably, the upper arm includes a front end, a middle end and a rear end of the upper arm, and the middle end of the upper arm is located between the front end and the rear end of the upper arm; the lower arm includes a front end, a middle end and a rear end of the lower arm corresponding to the upper arm, and the middle end of the lower arm is located between the front end and the rear end of the lower arm.

[0011] Specifically, the upper and lower arms correspond to each other, the front ends of the upper and lower arms are mainly used to separate the electrode cap and the electrode rod, the rear ends of the upper and lower arms are mainly used for hand gripping and force generation, and the middle ends of the upper and lower arms are mainly the parts where the upper and lower arms are connected to each other.

[0012] Preferably, the arc groove is located on the opposite side of the front end of the upper arm and the front end of the lower arm, and the rear end of the upper arm and the rear end of the lower arm are the ends for hand grip; the plane where the U-shaped bayonet flange is located is perpendicular to the plane where the rear end of the upper arm and the rear end of the lower arm are located.

[0013] Specifically, by holding the rear ends of the upper and lower arms, vertical pressure is applied to the upper and lower arms, so that the front ends of the upper and lower arms move relative to each other in the vertical direction; the U-shaped bayonet engages the recessed area between the electrode cap and the electrode rod, which can also be called the tapered fitting area, from the horizontal direction. When pressure is applied by holding, the bayonet flange of the upper arm moves upward and the bayonet flange of the lower arm moves downward.

[0014] Preferably, a limit pin is provided at the middle end of the upper arm between the rotating shaft and the arc-shaped groove, and a limit groove adapted to the limit pin is provided at the middle end of the lower arm between the rotating shaft and the arc-shaped groove.

[0015] Specifically, when the limit pin is stuck downward in the limit groove, the two bayonet flanges are just in the same plane, forming a U-shaped bayonet flange; at the same time, the limit pin and the limit groove are also used to prevent the bayonet flange of the upper arm from continuing to move downward and produce relative movement with the bayonet flange of the lower arm; that is, when no force is applied to the ends of the upper and lower arms, the limit pin always rests in the limit groove.

[0016] Preferably, an elastic member is provided at the rear end of the upper arm, close to the middle end of the upper arm; the elastic member is located between the rear end of the upper arm and the rear end of the lower arm; the position where the other end of the elastic member is connected to the rear end of the lower arm corresponds to the rear end of the upper arm.

[0017] Specifically, the elastic member can be a spring, which applies elastic force to the rear ends of the upper and lower arms and cooperates with the resistance generated when the limit pin rests on the limit slot, so that the upper and lower arms remain in a balanced state when no force is applied by hand grip.

[0018] Preferably, the sides where the middle ends of the upper arm and the lower arm are opposite to each other are provided with outwardly facing concave surfaces, and the concave surfaces are located between the rotating shaft and the front end of the upper arm or the front end of the lower arm.

[0019] Specifically, the concave surface is mainly used for installing the electrode cap. The adaptation of the concave surface to the electrode cap makes it easier to knock on the head of the electrode cap so that the electrode cap is tightly fitted in the tapered fitting area.

[0020] Preferably, the rear end of the upper arm is bent toward the side where the rear end of the lower arm is located to form an arc structure, and the rear end of the lower arm is bent toward the side where the rear end of the upper arm is located to form an arc structure corresponding to the rear end of the upper arm.

[0021] Specifically, the arc structure corresponding to the rear end of the upper arm and the rear end of the lower arm makes it easier to manually grip the rear end of the upper and lower arms and exert force. The arc structure can make the rear end of the upper and lower arms fully stressed, making it easier to grip and exert force, and making the grip more comfortable.

[0022] Preferably, the middle end of the upper arm bulges outward toward a side away from the middle end of the lower arm, forming a bending portion between the middle end of the upper arm and the rear end of the upper arm; the middle end of the lower arm is provided with a bending portion corresponding to the middle end of the upper arm.

[0023] Specifically, the design of the bent portion facilitates the structural design of the rotating shaft and the front ends of the upper and lower arms, so that the front ends form a horizontal U-shaped groove, thereby ensuring that the electrode cap is clamped in the U-shaped groove.

[0024] Preferably, the bayonet flange of the upper arm and the bayonet flange of the lower arm are both arranged at the edge of the U-shaped groove close to the side where the lower arm is located.

[0025] Specifically, the bayonet flange is arranged at the edge near the lower end, which can ensure that the U-shaped groove space at the upper ends of the two bayonet flanges fixes the electrode cap so that the electrode cap is just in the U-shaped groove, which is more stable when the electrode cap and the electrode rod are separated.

[0026] Preferably, the length of the rear end of the upper arm is greater than the sum of the lengths of the middle end and the front end of the upper arm, and the length of the rear end of the lower arm is greater than the sum of the lengths of the middle end and the front end of the lower arm.

[0027] Specifically, the length of the rear end of the upper and lower arms is much greater than the sum of the length of the front and middle ends of the upper and lower arms. The longer the lever arm away from the grip end, the smaller the force required to be applied. At the same time, it is converted into a large force when the upper and lower arm bayonet flanges move relative to each other in the vertical direction, so that the electrode cap is disengaged and separated from the tapered matching area of ​​the electrode rod or electrode arm.

[0028] Compared with the prior art, the present invention achieves the following beneficial effects:

[0029] The utility model provides a wrench for disassembling and assembling the electrode cap of a welding clamp, comprising an upper arm and a lower arm which cross each other and are connected by a rotating shaft, wherein an arc groove is respectively provided between the upper arm and the lower arm so that the electrode cap can be clamped in the two arc grooves, and bayonet flanges are distributed in the arc grooves so that the bayonet flanges are inserted into the taper matching area between the electrode cap and the electrode rod, and the two bayonet flanges are relatively moved in the vertical direction by manually holding the wrench to apply force, so that the bayonet flange of the upper arm pushes up the electrode cap, and the bayonet flange of the lower arm presses against the electrode rod or the electrode arm, thereby realizing the electrode cap and the electrode rod being fixed. Or the electrode arm is separated, the rotating shaft part area on the side of the wrench is used to knock the head of the electrode cap to achieve the installation of the motor cap; the overall structure uses the principle of leverage, and the small force of holding the rear end of the upper arm and the rear end of the lower arm tightly to bring them closer to each other is converted into a large force that moves the bayonet flange of the upper arm and the bayonet flange of the lower arm away from each other, thereby prying the electrode cap to make it disengage and separate from the taper matching area of ​​the electrode rod or the electrode arm. The operation is simple and convenient. The whole process of removing the electrode cap only requires one hand to hold it tightly, and no other actions are required. The overall structural design is simple, more reliable and labor-saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a product schematic diagram of a welding clamp electrode cap disassembly wrench in an embodiment of the present utility model;

[0031] Figure 2 This is a schematic diagram of the upper arm structure of a welding clamp electrode cap disassembly wrench in an embodiment of the present utility model;

[0032] Figure 3 This is a schematic diagram of the lower arm structure of a welding clamp electrode cap disassembly wrench in an embodiment of the present utility model;

[0033] Figure 4This is a schematic diagram of a welding clamp electrode cap disassembly wrench in an unlocked state according to an embodiment of the present utility model;

[0034] Figure 5 This is a schematic diagram of a welding clamp electrode cap disassembly wrench in an open state in an embodiment of the present utility model;

[0035] Figure 6 This is a schematic diagram of the structure of a welding clamp electrode cap disassembly wrench in an unopened state in an embodiment of the present utility model;

[0036] Figure 7 The utility model is a schematic diagram of the opening structure of a welding clamp electrode cap disassembly wrench in an embodiment.

[0037] Reference numerals:

[0038] 1. Upper arm; 11. Front end of upper arm; 12. Middle end of upper arm; 121. Limit pin; 13. Rear end of upper arm;

[0039] 2. Lower arm; 21. Front end of lower arm; 22. Middle end of lower arm; 221. Limiting groove; 23. Rear end of lower arm;

[0040] 3. U-shaped groove; 31. arc groove; 4. U-shaped bayonet flange; 41. bayonet flange;

[0041] 5. Rotating shaft; 6. Elastic member; 7. Concave surface; 8. Bending portion. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0043] Example

[0044] like Figures 1 to 7 A welding clamp electrode cap disassembly and assembly wrench comprises an upper arm 1 and a lower arm 2, wherein the upper arm 1 and the lower arm 2 intersect with each other and are connected at the intersection position by a rotating shaft 5;

[0045] One end of the upper arm 1 is provided with an arc-shaped groove 31 on the side facing the lower arm 2; the end of the lower arm 2 close to the arc-shaped groove 31 of the upper arm 1 is provided with an arc-shaped groove 31 corresponding to the upper arm 1 on the side facing the upper arm 1, and both of the arc-shaped grooves 31 are provided with a bayonet flange 41 that protrudes inward and adapts to the curvature of the arc-shaped groove 31; the arc-shaped grooves 31 of the upper and lower arms 2 are spliced ​​together to form a U-shaped groove 3 open to the outside, and the two bayonet flanges 41 together form a U-shaped bayonet flange 4 open to the outside; the rotating shaft 5 is located on the side close to the arc-shaped groove 31; the structures of the upper arm 1 and the lower arm 2 correspond to each other.

[0046] The electrode cap is arranged on the electrode rod or the electrode arm. A recessed area is provided between the electrode cap and the electrode rod or the electrode arm. The recessed area is a tapered fitting area.

[0047] Place the electrode cap in the U-shaped groove 3 so that the U-shaped bayonet flange 4 is stuck in the recessed area between the electrode cap and the electrode rod or electrode arm; by holding the upper and lower arms 2 away from one end of the U-shaped groove 3, the upper and lower arms 2 are brought close to each other around the rotating shaft 5, and the bayonet flange 41 of the upper arm 1 pushes the electrode cap upward, and the bayonet flange 41 of the lower arm 2 presses downward against the motor rod or electrode arm, so that the electrode cap and the electrode rod or electrode arm are separated from each other.

[0048] The upper arm 1 includes an upper arm front end 11, an upper arm middle end 12 and an upper arm rear end 13, and the upper arm middle end 12 is located between the upper arm front end 11 and the upper arm rear end 13. The lower arm 2 includes a lower arm front end 21, a lower arm middle end 22 and a lower arm rear end 23 corresponding to the upper arm 1, and the lower arm middle end 22 is located between the lower arm front end 21 and the lower arm rear end 23.

[0049] The upper and lower arms 2 correspond to each other. The front ends 21 of the upper and lower arms are mainly used to separate the electrode cap and the electrode rod. The rear ends 23 of the upper and lower arms are mainly used for hand gripping and force generation. The middle ends 22 of the upper and lower arms are mainly the parts where the upper and lower arms 2 are connected to each other.

[0050] The bayonet flange 41 of the upper arm 1 and the bayonet flange 41 of the lower arm 2 are both arranged at the edge of the U-shaped groove 3 close to the side where the lower arm 2 is located.

[0051] The bayonet flange 41 is set at the edge near the lower end, which can ensure that the U-shaped groove 3 at the upper end of the two bayonet flanges 41 can fix the electrode cap so that the electrode cap is just in the U-shaped groove 3, which is more stable when the electrode cap and the electrode rod are separated.

[0052] The length of the upper arm rear end 13 is greater than the sum of the lengths of the upper arm middle end 12 and the upper arm front end 11 , and the length of the lower arm rear end 23 is greater than the sum of the lengths of the lower arm middle end 22 and the lower arm front end 21 .

[0053] The length of the rear end 23 of the upper and lower arms is much greater than the sum of the lengths of the front and middle ends of the upper and lower arms 2. The longer the lever arm away from the grip end, the smaller the force required to be applied. At the same time, it is converted into a large force when the bayonet flanges 41 of the upper and lower arms 2 move relative to each other in the vertical direction, thereby causing the electrode cap to disengage and separate from the tapered fitting area of ​​the electrode rod or electrode arm.

[0054] The arc groove 31 is located on the opposite side of the upper arm front end 11 and the lower arm front end 21, and the upper arm rear end 13 and the lower arm rear end 23 are the hand-held ends; the plane where the U-shaped bayonet flange 4 is located is perpendicular to the plane where the upper arm rear end 13 and the lower arm rear end 23 are located.

[0055] By holding the rear ends 23 of the upper and lower arms, vertical pressure is applied to the upper and lower arms 2, so that the front ends 21 of the upper and lower arms move relative to each other in the vertical direction; the U-shaped bayonet engages the recessed area between the electrode cap and the electrode rod, which can also be called the tapered fitting area, with each other in the horizontal direction. When pressure is applied by holding, the bayonet flange 41 of the upper arm 1 moves upward and the bayonet flange 41 of the lower arm 2 moves downward.

[0056] A limiting pin 121 is provided between the middle end 12 of the upper arm and the rotating shaft 5 and the arc groove 31 , and a limiting groove 221 adapted to the limiting pin 121 is provided between the middle end 22 of the lower arm and the rotating shaft 5 and the arc groove 31 .

[0057] When the limit pin 121 is stuck downward in the limit groove 221, the two bayonet flanges 41 are just in the same plane, forming a U-shaped bayonet flange 4; at the same time, the limit pin 121 and the limit groove 221 are also used to prevent the bayonet flange 41 of the upper arm 1 from continuing to move downward and produce relative movement with the bayonet flange 41 of the lower arm 2; that is, when no force is applied to the ends of the upper and lower arms 2, the limit pin 121 always rests in the limit groove 221.

[0058] An elastic member 6 is provided at the rear end 13 of the upper arm, close to the middle end 12 of the upper arm; the elastic member 6 is located between the rear end 13 of the upper arm and the rear end 23 of the lower arm; the position where the other end of the elastic member 6 is connected to the rear end 23 of the lower arm corresponds to the rear end 13 of the upper arm.

[0059] The elastic member 6 can be a spring, which applies elastic force to the rear ends 23 of the upper and lower arms, and cooperates with the resistance generated when the limit pin 121 abuts against the limit groove 221, so that the upper and lower arms 2 maintain a balanced state when no force is applied by hand.

[0060] An outward-facing concave surface 7 is provided on the side where the middle end 12 of the upper arm and the middle end 22 of the lower arm are opposite to each other. The concave surface 7 is located between the rotating shaft 5 and the front end 11 of the upper arm or the front end 21 of the lower arm.

[0061] The concave surface 7 is mainly used for installing the electrode cap. The adaptation of the concave surface 7 to the electrode cap makes it easier to knock the head of the electrode cap so that the electrode cap is tightly fitted in the tapered fitting area.

[0062] The upper arm rear end 13 is bent toward the side where the lower arm rear end 23 is located to form an arc structure, and the lower arm rear end 23 is bent toward the side where the upper arm rear end 13 is located to form an arc structure corresponding to the upper arm rear end 13 .

[0063] The arc structure corresponding to the rear end 13 of the upper arm and the rear end 23 of the lower arm makes it easy to manually grip the rear end 23 of the upper and lower arms and exert force. The arc structure can make the rear end 23 of the upper and lower arms fully stressed, making it easier to exert force by hand and making the grip more comfortable.

[0064] The upper arm middle end 12 protrudes outwards toward the side away from the lower arm middle end 22 , forming a bending portion 8 between the upper arm and the rear end 13 ; the lower arm middle end 22 is provided with a bending portion 8 corresponding to the upper arm middle end 12 .

[0065] The design of the bent portion 8 facilitates the structural design of the rotating shaft 5 and the front ends 21 of the upper and lower arms, so that the front ends form a horizontal U-shaped groove 3, thereby ensuring that the electrode cap is clamped in the U-shaped groove 3.

[0066] The utility model provides a wrench for disassembling and assembling the electrode cap of a welding clamp. When no force is applied to the wrench, the elastic force of the spring cooperates with the resistance of the limit pin 121 against the limit groove 221 to keep the wrench in a balanced state, that is, the two bayonet flanges 41 are on the same plane.

[0067] Insert the two flange bayonet clips into the tapered fitting area between the electrode cap and the motor rod or electrode arm, and clip the electrode cap into the U-shaped groove 3. Firmly grip the rear ends 23 of the upper and lower arms to move the rear ends 13 and 23 of the upper arm relative to each other, that is, move them closer to each other, that is, move the rear end 13 of the upper arm downward and the rear end 23 of the lower arm upward. At this time, the bayonet flange 41 of the upper arm 1 will move upward around the rotating shaft 5, and the bayonet flange 41 of the lower arm 2 will move downward around the rotating shaft 5, so that the electrode cap will be pushed upward from the tapered fitting area, thereby separating the electrode cap from the electrode rod or electrode arm.

[0068] When installing the electrode cap, the concave surface 7 is used to knock against the head of the electrode cap so that the electrode cap can be tightly fitted into the tapered fitting area.

[0069] Based on the disclosure and teachings of the above description, those skilled in the art may also make changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and modifications and variations of the present invention should also fall within the scope of protection of the claims of the present invention. In addition, although certain specific terms are used in this description, these terms are for convenience only and do not constitute any limitation to the present invention.

Claims

1. A welding clamp electrode cap disassembly wrench, comprising an upper arm and a lower arm, wherein the upper arm and the lower arm intersect with each other and are connected by a rotating shaft at the intersection; characterized in that: One end of the upper arm is provided with an arc-shaped groove on the side where the lower arm is located; the end of the lower arm close to the arc-shaped groove of the upper arm is provided with an arc-shaped groove corresponding to the upper arm on the side where the upper arm is located, and both of the arc-shaped grooves are provided with a bayonet flange that protrudes inward and adapts to the curvature of the arc-shaped groove; the arc-shaped grooves of the upper and lower arms are spliced ​​together to form a U-shaped groove open to the outside, and the two bayonet flanges together form a U-shaped bayonet flange open to the outside; the rotating shaft is located on the side close to the arc-shaped groove; the structures of the upper arm and the lower arm correspond to each other.

2. A welding clamp electrode cap disassembly wrench according to claim 1, characterized in that: The upper arm includes a front end, a middle end and a rear end of the upper arm, and the middle end of the upper arm is located between the front end and the rear end of the upper arm. The lower arm includes a front end, a middle end and a rear end of the lower arm corresponding to the upper arm, and the middle end of the lower arm is located between the front end and the rear end of the lower arm.

3. The welding clamp electrode cap disassembly wrench according to claim 2, characterized in that: The arc grooves are respectively located on the opposite side of the front end of the upper arm and the front end of the lower arm, and the rear end of the upper arm and the rear end of the lower arm are the ends for hand-holding; the plane where the U-shaped bayonet flange is located is perpendicular to the plane where the rear end of the upper arm and the rear end of the lower arm are located.

4. The welding clamp electrode cap disassembly wrench according to claim 2, characterized in that: A limit pin is provided between the rotating shaft and the arc-shaped groove at the middle end of the upper arm, and a limit groove adapted to the limit pin is provided between the rotating shaft and the arc-shaped groove at the middle end of the lower arm.

5. The welding clamp electrode cap disassembly wrench according to claim 4, characterized in that: An elastic member is provided at the rear end of the upper arm, close to the middle end of the upper arm; the elastic member is located between the rear end of the upper arm and the rear end of the lower arm; the position where the other end of the elastic member connects with the rear end of the lower arm corresponds to the rear end of the upper arm.

6. A welding clamp electrode cap disassembly wrench according to claim 2, characterized in that: The sides where the middle ends of the upper arm and the lower arm are opposite to each other are provided with outwardly facing concave surfaces, and the concave surfaces are located between the rotating shaft and the front end of the upper arm or the front end of the lower arm.

7. The welding clamp electrode cap disassembly wrench according to claim 2, characterized in that: The rear end of the upper arm is bent toward the side where the rear end of the lower arm is located to form an arc structure, and the rear end of the lower arm is bent toward the side where the rear end of the upper arm is located to form an arc structure corresponding to the rear end of the upper arm.

8. The welding clamp electrode cap disassembly wrench according to claim 2, characterized in that: The middle end of the upper arm protrudes outwards toward a side away from the middle end of the lower arm, forming a bending portion between the middle end of the upper arm and the rear end of the upper arm; the middle end of the lower arm is provided with a bending portion corresponding to the middle end of the upper arm.

9. The welding clamp electrode cap disassembly wrench according to claim 2, characterized in that: The bayonet flange of the upper arm and the bayonet flange of the lower arm are both arranged at the edge of the U-shaped groove close to the side where the lower arm is located.

10. The welding clamp electrode cap disassembly wrench according to claim 2, characterized in that: The length of the rear end of the upper arm is greater than the sum of the lengths of the middle end and the front end of the upper arm, and the length of the rear end of the lower arm is greater than the sum of the lengths of the middle end and the front end of the lower arm.

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