Waste electrode arm holding rod high-precision composite repairing structure based on aging strengthening

Abstract

The utility model relates to the technical field of electrode arm repairing, and discloses a waste electrode arm holding rod high-precision composite repairing structure based on aging strengthening, which comprises an electrode arm rod, the front side of the outer wall of the electrode arm rod is fixedly connected with a taper head, and the top of the inner wall of the taper head is fixedly connected with a connecting pipe. The periphery of the outer wall of the connecting pipe is fixedly connected with silver welding wires, the rear side of the outer wall of the electrode arm rod is fixedly connected with a fixing mechanism, and the fixing mechanism is used for clamping and fixing an electrode arm. According to the utility model, the taper head is fixed on the front side of the electrode arm rod to ensure stable installation of the connecting pipe, the connecting pipe is connected with the fixed block through the silver welding wire, the top of the connecting pipe is fixed with the electrode cap, the connecting plate is located on the rear side of the electrode arm rod, and the core through hole is formed in the middle of the inner wall of the electrode arm rod; the purchase cost is reduced, and the performance and the repair effect are ensured in the recovery process.

Description

TECHNICAL FIELD

[0001] The utility model relates to electrode arm repair technical field especially relates to a kind of high-precision composite repair structure of waste electrode arm handle based on aging strengthening. BACKGROUND

[0002] With the increasing popularity of private cars in China, the market demand for automobiles increases, but with the competition of automobile market is increasingly fierce, automobile manufacturers need to continuously improve production process, simplify production process, improve production quality and production efficiency, reduce production cost, and in the automobile production process, the use of spot welding gun is indispensable, the electrode arm of the present spot welding gun is long section workpiece, after a period of actual production work, the taper head size of the front end of electrode arm for installing electrode cap position is seriously deformed, the strength performance of old electrode arm body decreases and fails, the overall size changes, and the electrode cap connecting piece of the worn electrode cap will leak when sleeving the electrode cap due to the inability to fit tightly, resulting in the spot welding gun unable to work, at this time, the entire electrode arm needs to be replaced, which will cause great waste.

[0003] Through retrieval, Chinese patent publication No. CN220921218U discloses a repairable electrode arm, belonging to the technical field of electrode arms, which comprises a to-be-replaced taper head provided with a first connecting surface at the bottom end; a to-be-repaired electrode arm provided with a second connecting surface at the front end for connecting with the to-be-replaced taper head, the first connecting surface and the second connecting surface are attached and fixedly connected by welding, so that the to-be-replaced taper head and the to-be-repaired electrode arm form an integral whole, the first connecting surface and the second connecting surface are welded by argon arc welding, and the welding material of the first connecting surface and the second connecting surface is purple copper welding wire. The utility model repairs the damaged electrode arm, reuses the damaged electrode arm, makes the to-be-replaced taper head, replaces the damaged taper head with the to-be-replaced taper head, thereby reducing manufacturing cost, reducing repair difficulty, and shortening repair time. However, the existing high-precision composite repair structure of waste electrode arm handle based on aging strengthening lacks systematic and efficient electrode arm repair methods, making it difficult to meet the standards of new products in terms of performance and service life. To further reduce the cost of welding equipment spare parts, the replacement of electrode arms increases operating costs and cannot achieve repair and reuse. UTILITY MODEL CONTENTS

[0004] To make up for the above shortcomings, the utility model provides a high-precision composite repair structure of waste electrode arm handle based on aging strengthening, aiming to improve the lack of systematic and efficient electrode arm repair methods in the prior art, which makes it difficult to meet the standards of new products, increases the operating costs of the entire replacement of electrode arms, and cannot achieve repair and reuse.

[0005] In order to achieve the above object, the utility model discloses the following technical scheme: a kind of high-precision composite repair structure of waste electrode arm handle based on aging strengthening, including electrode arm rod, the outer wall front side of the electrode arm rod is fixedly connected with taper head, the inner wall top of the taper head is fixedly connected with connecting pipe, the outer wall all around of the connecting pipe is fixedly connected with silver welding wire, the outer wall bottom of the silver welding wire is fixedly connected with fixed block, the outer wall top of the connecting pipe is fixedly connected with electrode cap, the outer wall rear side of the electrode arm rod is fixedly connected with connecting plate, the outer wall front side of the connecting plate is equipped with fixed slot, the inner wall middle part of the electrode arm rod is equipped with through core hole, the outer wall rear side of the electrode arm rod is fixedly connected with fixed mechanism, and the fixed mechanism is used for clamping fixed electrode arm.

[0006] Through the above technical scheme: taper head is fixed to the front side of electrode arm rod, ensure that connecting pipe is stably installed, connecting pipe is connected with fixed block through silver welding wire, forms stable electrical and mechanical connection, connecting pipe top is connected with electrode cap, ensure that current is smoothly transmitted, connecting plate is fixed to the rear side of electrode arm rod, its fixed slot is used for connection or positioning, enhances structural stability and installation convenience, through core hole is located in the inner wall middle part of electrode arm rod, for medium, prevent overheating damage, guarantee performance and precision, the conductivity of silver welding wire helps reduce resistance, reduce power loss, improve welding efficiency, the whole structure is through aging strengthening principle, improves material strength, hardness and wear resistance, prolongs service life, meets the requirement of high-precision welding, and the outer wall rear side of electrode arm rod is fixedly connected with fixed mechanism, for clamping fixed electrode arm.

[0007] As further description of the above technical scheme:

[0008] The fixed mechanism includes fixed frame, and the fixed frame is fixedly connected to the outer wall rear side of the electrode arm rod, and the outer wall rear side of the fixed frame is fixedly connected with motor pressurizing mechanism, and the outer wall top of the motor pressurizing mechanism is communicated with fixed pipe, and the outer wall front side of the fixed pipe is fixedly connected with connecting rod, and the outer wall middle part of the connecting rod is penetrated by connecting column, and the inner wall middle part of the fixed frame is fixedly connected with support block, and the outer wall one side of the fixed frame is communicated with connecting hole, and the outer wall right side of the connecting hole is fixedly connected with conduit.

[0009] Through the above technical scheme: fixed frame is installed to the rear side of electrode arm rod, supports motor pressurizing mechanism, ensure that the structure is stable, be connected with electrode arm through connecting hole and conduit, meet the fixed demand, and motor pressurizing mechanism generates pressure through motor, and the electrode arm rod is transmitted, and fixed pipe ensures that pressurization is stable and accurate, and connecting rod and connecting column participate in pressure transmission and linkage, effectively act on the electrode arm rod, meet the welding pressure requirement, and support block enhances the strength of fixed frame.

[0010] As further description of the above technical scheme:

[0011] The inner wall of the support block is provided with a fixing hole two in the middle, and the inner wall of the fixing hole two is fixedly connected with a support rod.

[0012] Through the above technical scheme: the support block is provided with a fixing hole in the middle, which is firmly connected with the support rod, ensuring the stable fixation of the support rod and providing support and stability for the structure.

[0013] As a further description of the above technical scheme:

[0014] The outer wall of the fixed frame is fixedly connected with a baffle on the left and right sides, and the outer wall of the baffle is threadedly connected with a plurality of bolts one on one side.

[0015] Through the above technical scheme: the two sides of the fixed frame are fixed with baffles, and the baffles are threadedly connected with a plurality of bolts, ensuring the stability of the outer wall and the protection of the equipment.

[0016] As a further description of the above technical scheme:

[0017] The outer wall of the motor pressurizing mechanism is fixedly connected with a slide bar at the bottom, and the outer wall of the fixed frame is fixedly connected with a sliding block at the bottom.

[0018] Through the above technical scheme: the outer wall of the motor pressurizing mechanism is fixedly connected with a slide bar at the bottom, and the outer wall of the fixed frame is fixedly connected with a sliding block at the bottom.

[0019] As a further description of the above technical scheme:

[0020] The inner wall of the fixed frame is provided with an arc-shaped slot on one side, and the inner wall of the arc-shaped slot is slidably connected with a limiting rod.

[0021] Through the above technical scheme: the fixed frame is slidably connected with the limiting rod through the arc-shaped slot in the inner wall to limit the electrode arm and prevent the operation from derailing and causing danger.

[0022] As a further description of the above technical scheme:

[0023] The outer wall of the fixed frame is fixedly connected with a connecting buckle at the top, and the top rear side of the connecting buckle is rotatably connected with a fixed buckle.

[0024] Through the above technical scheme: the connecting buckle at the top of the fixed frame is rotatably connected with the fixed buckle, which is convenient for connecting and adjusting the fixed frame and the motor pressurizing mechanism.

[0025] As a further description of the above technical scheme:

[0026] The outer wall of the motor pressurizing mechanism is fixedly connected with a fixed plate at the top, and the outer wall of the fixed plate is threadedly connected with a plurality of bolts two around.

[0027] By the technical scheme, the motor pressurizing mechanism is stably installed through the bolts on the top fixing plate, and accurate and stable pressure is ensured during working.

[0028] The utility model has the advantages of the following:

[0029] 1. In the utility model, the taper head is fixed on the front side of the electrode arm rod, ensuring stable installation of the connecting pipe, the connecting pipe is connected with the fixing block through silver welding wire, the top of the connecting pipe is fixed with the electrode cap, the connecting plate is located on the rear side of the electrode arm rod, the through core hole is in the middle of the inner wall of the electrode arm rod, the structure improves material strength, hardness and wear resistance through the aging strengthening principle, prolongs the service life, meets the high-precision welding requirement, restores the old electrode arm by replacing the electrode head to restore the performance, not only restores the appearance, mills the part where the electrode cap is installed, processes the old electrode arm with high precision, welds the new and old parts, reworks the old electrode arm handle, restores the new standard, reduces the procurement cost, ensures the performance and rework effect during the restoration process, shortens the rework period, reduces the inventory pressure, and guarantees the quality.

[0030] 2. In the utility model, the fixing frame is installed on the rear side of the electrode arm rod, provides stable support for the motor pressurizing mechanism, is connected with the electrode arm through the connecting hole and the conduit, the motor pressurizing mechanism generates pressure through the motor and transmits the pressure to the electrode arm rod, the fixed pipe is fixedly connected with the component, ensures accurate and stable pressurization, effectively acts on the electrode arm rod, meets the welding pressure requirement, the supporting block enhances the strength of the fixing frame, bears the pressure and reaction force, and prevents deformation and damage. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 A front view of a high-precision composite repair structure of a waste electrode arm handle based on aging strengthening is provided for the utility model;

[0032] Figure 2 A structure display diagram of a high-precision composite repair structure of a waste electrode arm handle based on aging strengthening is provided for the utility model;

[0033] Figure 3 A sectional view of a high-precision composite repair structure of a waste electrode arm handle based on aging strengthening is provided for the utility model;

[0034] Figure 4 A perspective view of a high-precision composite repair structure of a waste electrode arm handle based on aging strengthening is provided for the utility model;

[0035] Figure 5 A fixing mechanism split view of a high-precision composite repair structure of a waste electrode arm handle based on aging strengthening is provided for the utility model.

[0036] LEGEND:

[0037] 1, electrode arm rod; 2, fixed mechanism; 201, fixed frame; 202, motor pressure mechanism; 203, fixed tube; 204, connecting rod; 205, connecting column; 206, support block; 207, connecting hole; 208, catheter; 3, taper head; 4, connecting tube; 5, silver welding wire; 6, electrode cap; 7, connecting plate; 8, fixed groove; 9, through core hole; 10, fixed block; 11, support rod; 12, fixed hole two; 13, baffle; 14, bolt one; 15, slide bar; 16, sliding block; 17, arc-shaped groove; 18, limiting rod; 19, fixed buckle; 20, connecting buckle; 21, fixed plate; 22, bolt two. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0039] With reference to Figure 1 , Figure 3 and Figure 4 , the present application provides an embodiment: a high-precision composite repair structure for waste electrode arm holding rod based on aging strengthening, comprising an electrode arm rod 1, a taper head 3 is fixedly connected to the front side of the outer wall of the electrode arm rod 1, a connecting tube 4 is fixedly connected to the top of the inner wall of the taper head 3, silver welding wires 5 are fixedly connected to the outer wall of the connecting tube 4, a fixed block 10 is fixedly connected to the bottom of the outer wall of the silver welding wire 5, an electrode cap 6 is fixedly connected to the top of the outer wall of the connecting tube 4, a connecting plate 7 is fixedly connected to the rear side of the outer wall of the electrode arm rod 1, a fixed groove 8 is formed in the front side of the outer wall of the connecting plate 7, a through core hole 9 is formed in the middle of the inner wall of the electrode arm rod 1, a fixed mechanism 2 is fixedly connected to the rear side of the outer wall of the electrode arm rod 1, the fixed mechanism 2 is used for clamping and fixing the electrode arm, a fixed hole two 12 is formed in the middle of the inner wall of the support block 206, and a support rod 11 is fixedly connected to the middle of the inner wall of the fixed hole two 12.

[0040] Specifically, the taper head 3 is fixed on the front side of the electrode arm rod 1, providing stable installation for the connecting pipe 4, which is connected with the fixed block 10 through the silver solder wire 5 with good conductivity, ensuring the stability of the electrical and mechanical connection, and the top of the connecting pipe 4 is connected with the electrode cap 6, forming a complete conductive path to ensure smooth current transmission. The connecting plate 7 is fixed on the rear side of the electrode arm rod 1, and its fixed groove 8 is used for connection or positioning, enhancing the structural stability and installation convenience. The through core hole 9 is in the middle of the inner wall of the electrode arm rod 1, used for passing the medium to prevent overheating damage and ensure performance and precision. The conductivity of the silver solder wire 5 helps to reduce resistance, reduce power loss and improve welding efficiency. The entire structure utilizes the principle of aging strengthening, through heat treatment and aging treatment, to improve the strength, hardness and wear resistance of the material, prolong the service life, meet the high-precision welding requirements, and the outer wall of the rear side of the electrode arm rod 1 is fixedly connected with the fixing mechanism 2, which is used to clamp and fix the electrode arm. A fixing hole two 12 is formed in the inner wall of the middle of the support block 206 for fixed connection, and the inner wall of the middle is also firmly connected with the support rod 11, ensuring that the support rod 11 can be stably fixed on the support block 206, thereby providing necessary support and stability for the entire structure.

[0041] Referring to Figure 1 , Figure 2 and Figure 5 , the fixing mechanism 2 comprises a fixing frame 201 fixedly connected to the outer wall of the rear side of the electrode arm rod 1, a motor pressurizing mechanism 202 fixedly connected to the outer wall of the rear side of the fixing frame 201, a fixed pipe 203 communicated with the outer wall of the top of the motor pressurizing mechanism 202, a connecting rod 204 fixedly connected to the outer wall of the front side of the fixed pipe 203, a connecting column 205 penetrating through the outer wall of the middle of the connecting rod 204, a support block 206 fixedly connected to the inner wall of the middle of the fixing frame 201, a connecting hole 207 communicated with the outer wall of one side of the fixing frame 201, a conduit 208 fixedly connected to the outer wall of the right side of the connecting hole 207, a baffle 13 fixedly connected to the outer wall of the left and right sides of the fixing frame 201, a plurality of bolts one 14 threadedly connected to the outer wall of one side of the baffle 13, a sliding strip 15 fixedly connected to the outer wall of the bottom of the motor pressurizing mechanism 202, and a sliding block 16 fixedly connected to the outer wall of the bottom of the fixing frame 201.

[0042] Specifically, the fixed frame 201 is installed at the rear side of the electrode arm rod 1, provides stable support for the motor pressing mechanism 202, ensures structural stability, is connected with the electrode arm through the connecting hole 207 and the conduit 208, meets the fixing requirements, the motor pressing mechanism 202 is a key component, generates pressure through the motor and transmits it to the electrode arm rod 1, the fixed pipe 203 is fixedly connected with the component, ensures stable and accurate pressing, the connecting rod 204 and the connecting column 205 participate in pressure transmission and linkage, effectively act on the electrode arm rod 1, meet the welding pressure requirements, the supporting block 206 enhances the strength of the fixed frame 201, bears pressure and reaction force, prevents deformation and damage, the baffle 13 is fixedly connected to the left and right sides of the outer wall of the fixed frame 201, the outer wall of the baffle 13 is connected with a plurality of bolts 14 through threads on one side, to ensure the stability of the fixed outer wall and the protection of the equipment, at the same time, the outer wall bottom of the motor pressing mechanism 202 is also fixedly connected with the sliding strip 15, and the outer wall bottom of the fixed frame 201 is fixedly connected with the sliding block 16, the sliding block 16 is used in cooperation with the sliding strip 15, to realize smooth movement and positioning of the mechanism.

[0043] Referring to Figure 1 , Figure 2 and Figure 3 , the inner wall of the fixed frame 201 is provided with an arc-shaped groove 17 on one side, the inner wall of the arc-shaped groove 17 is slidably connected with a limiting rod 18, the outer wall top of the fixed frame 201 is fixedly connected with a connecting buckle 20, the top rear side of the connecting buckle 20 is rotatably connected with a fixed buckle 19, the outer wall top of the motor pressing mechanism 202 is fixedly connected with a fixed plate 21, and the outer wall of the fixed plate 21 is threadedly connected with a plurality of bolts 22;

[0044] Specifically, the fixed frame 201 is slidably connected with the limiting rod 18 through the arc-shaped groove 17 in the inner wall, can limit the electrode arm, prevent derailment during operation to cause danger, the connecting buckle 20 at the top is rotatably connected with the fixed buckle 19, facilitates the connecting and adjusting operation of the fixed frame 201 and the motor pressing mechanism 202; the motor pressing mechanism 202 uses the bolts 22 on the top fixed plate 21, realizes stable installation and fixation of the motor pressing mechanism 202 on the fixed frame 201, so that the whole structure can accurately and stably exert pressure during work.

[0045] Working principle: taper head 3 fixed connection in electrode arm rod 1 outer wall front side, for the connection pipe 4 provides stable installation foundation, connection pipe 4 through silver solder wire 5 and fixed block 10 connection, silver solder wire 5 has good conductivity and welding performance, use 45% silver content 2mm silver solder wire 5 welding, can ensure the electrical connection and mechanical connection between connection pipe 4 and fixed block 10 stable and reliable, at the same time, the top of connection pipe 4 and electrode cap 6 fixed connection, electrode head material Rockwell hardness “HRB” value is between 70-80, conductivity “IACS %” value is 25% such alloy copper material, from electrode arm rod 1 to electrode cap 6 complete conduction path, so that the current can be smoothly transmitted to electrode cap 6, for the necessary conditions for welding work, connecting plate 7 is fixed in the outer wall of electrode arm rod 1 rear side, the front side of the fixed groove 8 can be used for connecting or positioning with other components, enhance the stability and installation convenience of the whole structure, through the core hole 9 is set in the inner wall of electrode arm rod 1 middle part, for the medium, the heat generated in the welding process, prevent electrode arm rod 1 due to overheating and damage, ensure its performance and precision, at the same time, the good conductivity of silver solder wire 5 helps to reduce the resistance, reduce the power loss, improve the welding efficiency, the whole repair structure uses the principle of aging strengthening, in the repair process, through the proper heat treatment and aging treatment of the repair material electrode arm rod 1, the internal structure of the material changes, forms small and uniform strengthening phase, so as to improve the strength, hardness and wear resistance of the material, after aging strengthening, the repaired electrode arm can withstand greater welding pressure and current, prolong its service life, meet the requirements of high precision welding, the recovery of old electrode arm is to replace the new electrode head at the working part of the electrode arm to achieve the performance, not the simple repair of the simple shape, the repair process needs to go through the steps of machining, silver welding and cold processing, material heat treatment, etc. to complete, use milling machine to mill the electrode cap 6 installation part on the electrode arm, form the basic shape suitable for subsequent repair, process the installation part of the old electrode arm with high precision, and use lathe to process new electrode head, ensure that the size and shape meet the design requirements, weld the finished electrode arm with the new electrode head, put the welded electrode arm into the aging furnace according to the process, through the electrode head material after aging, the Rockwell hardness (HRB value) reaches 95-98, and the conductivity (IACS % value) reaches 45%;

[0046] The fixed frame 201 is fixed on the rear side of the outer wall of the electrode arm rod 1, and provides stable support and mounting position for the components of the motor pressurizing mechanism 202, ensures the stability of the whole structure, at the same time, through the connecting hole 207 and the pipe 208, it is connected with the electrode arm to meet the fixing function requirement of the whole device, the motor pressurizing mechanism 202 is the key component of the whole structure, through the motor drive, a certain pressure can be generated, and the pressure is transmitted to the electrode arm rod 1, the fixed pipe 203 communicated with the outer wall top of the motor pressurizing mechanism 202 is used for fixing the connecting components, to ensure the stability and accuracy of the pressurizing process, the connecting rod 204 and the connecting column 205 penetrating through the middle part of the outer wall participate in the pressure transmission and mechanism linkage process, so that the pressure generated by the motor pressurizing mechanism 202 can effectively act on the electrode arm rod 1, realizes the pressurizing operation of the electrode arm, so as to meet the requirement of applying pressure on the welding part in the welding process, the support block 206 fixedly connected in the middle part of the inner wall of the fixed frame 201 can enhance the structural strength of the fixed frame 201, so that it can better bear the pressure generated by the motor pressurizing mechanism 202 and the reaction force generated in the welding process, prevent the fixed frame 201 from deforming and damaging.

[0047] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the foregoing detailed description of the present application is made with reference to the foregoing embodiments, for the skilled in the art, it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, should be included in the protection scope of the present application.

Claims

1. A high-precision composite repair structure for waste electrode arm grips based on aging enhancement, comprising an electrode arm (1), characterized in that: The outer wall front side of the electrode arm rod (1) is fixedly connected with a taper head (3), the inner wall top of the taper head (3) is fixedly connected with a connecting pipe (4), the outer wall all around of the connecting pipe (4) is fixedly connected with a silver welding wire (5), the outer wall bottom of the silver welding wire (5) is fixedly connected with a fixed block (10), the outer wall top of the connecting pipe (4) is fixedly connected with an electrode cap (6), the outer wall back side of the electrode arm rod (1) is fixedly connected with a connecting plate (7), the outer wall front side of the connecting plate (7) is provided with a fixed slot (8), the inner wall middle part of the electrode arm rod (1) is provided with a through core hole (9), and the outer wall back side of the electrode arm rod (1) is fixedly connected with a fixing mechanism (2), which is used for clamping and fixing the electrode arm.

2. The high-precision composite repair structure of the spent electrode arm handle based on aging strengthening according to claim 1, characterized in that: The fixing mechanism (2) comprises a fixing frame (201), which is fixedly connected to the outer wall back side of the electrode arm rod (1), a motor pressurizing mechanism (202) fixedly connected to the outer wall back side of the fixing frame (201), a fixed pipe (203) in communication with the outer wall top of the motor pressurizing mechanism (202), a connecting rod (204) fixedly connected to the outer wall front side of the fixed pipe (203), a connecting column (205) penetrating through the outer wall middle part of the connecting rod (204), a supporting block (206) fixedly connected to the inner wall middle part of the fixing frame (201), a connecting hole (207) in communication with one side of the outer wall of the fixing frame (201), and a catheter (208) fixedly connected to the outer wall right side of the connecting hole (207).

3. The high-precision composite repair structure of the spent electrode arm handle based on aging strengthening according to claim 2, characterized in that: The inner wall middle part of the supporting block (206) is provided with a fixed hole two (12), and the inner wall middle part of the fixed hole two (12) is fixedly connected with a supporting rod (11).

4. The high-precision composite repair structure of the spent electrode arm handle based on aging strengthening according to claim 2, characterized in that: The outer wall left and right sides of the fixing frame (201) are fixedly connected with a baffle (13), and a plurality of bolts one (14) are threadedly connected to one side of the outer wall of the baffle (13).

5. The high-precision composite repair structure of the spent electrode arm handle based on aging strengthening according to claim 2, characterized in that: The outer wall bottom of the motor pressurizing mechanism (202) is fixedly connected with a sliding strip (15), and the outer wall bottom of the fixing frame (201) is fixedly connected with a sliding block (16).

6. The high-precision composite repair structure of the spent electrode arm handle based on aging strengthening according to claim 2, characterized in that: The inner wall adjacent side of the fixing frame (201) is provided with an arc-shaped groove (17), and the inner wall of the arc-shaped groove (17) is slidingly connected with a limiting rod (18).

7. The high-precision composite repair structure of the spent electrode arm handle based on aging strengthening according to claim 2, characterized in that: The outer wall top of the fixing frame (201) is fixedly connected with a connecting buckle (20), and the top back side of the connecting buckle (20) is rotatably connected with a fixed buckle (19).

8. The high-precision composite repair structure of the spent electrode arm handle based on aging strengthening according to claim 2, characterized in that: The outer wall top of the motor pressurizing mechanism (202) is fixedly connected with a fixed plate (21), and the outer wall all around of the fixed plate (21) is threadedly connected with a bolt two (22).

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