Electrode tip dressing apparatus

Abstract

This application relates to the field of electrode tip grinding technology, and provides an electrode tip grinding device, comprising: a lifting mechanism; a rotating mechanism connected to the lifting mechanism, the lifting mechanism being used to drive the rotating mechanism to move up and down in a vertical direction; a mounting base connected to the rotating mechanism, the rotating mechanism being used to drive the mounting base to rotate around a first axis, the vertical direction being perpendicular to the extension direction of the first axis; and a grinding tool mounted on the mounting base, the grinding tool including a grinding head having a grinding hole for inserting the electrode tip, the axis of the grinding hole being perpendicular to the extension direction of the first axis. Through the technical solution of this application, the electrode tip does not need to be ground manually by hand, thereby improving the grinding accuracy of the electrode tip.

Description

Technical Field

[0001] This application relates to the field of electrode tip grinding technology, and more specifically, to an electrode tip grinding device. Background Technology

[0002] Welding equipment is widely used in manufacturing, such as electric welding machines, robotic spot welding systems, projection welding machines, and roll welding machines. Most welding equipment is equipped with electrode heads, which are subjected to huge current, pressure, and heat, and will undergo oxidation, deformation, and wear. These adverse phenomena will significantly reduce the contact quality between the electrode head and the workpiece, resulting in unstable weld nugget size, incomplete welding, increased spatter, and ultimately affecting the strength of the welded joint.

[0003] Currently, there is a solution to manually grind the electrode tip to solve the problem of electrode tip deformation. However, manual grinding depends on the skill level of the operator. Since the arm cannot provide stable and continuous control force, it is difficult to accurately control the amount of grinding, angle and centering during operation. This can easily cause irregular shape of the electrode tip end face or axial offset, thus affecting the subsequent welding quality. Utility Model Content

[0004] The technical problem to be solved by this application is to provide an electrode tip grinding device that eliminates the need for manual hand-held grinding of the electrode tip, thereby improving the grinding accuracy of the electrode tip.

[0005] To solve the above-mentioned technical problems, this application adopts the following technical solution: This application provides an electrode tip grinding device, comprising: a lifting mechanism; a rotating mechanism connected to the lifting mechanism, the lifting mechanism being used to drive the rotating mechanism to move up and down in a vertical direction; a mounting base connected to the rotating mechanism, the rotating mechanism being used to drive the mounting base to rotate around a first axis, the vertical direction being perpendicular to the extension direction of the first axis; and a grinding head mounted on the mounting base, the grinding head including a grinding head having a grinding hole for inserting an electrode tip, the axial direction of the grinding hole being perpendicular to the extension direction of the first axis.

[0006] In one embodiment, the electrode head grinding device further includes a fixed plate, a movable plate, and a buffer. The fixed plate is fixedly connected to the mounting base, and the movable plate is movably disposed on the fixed plate along the axial direction of the grinding hole. Along the axial direction of the grinding hole, the grinding head is located between the fixed plate and the movable plate, and the buffer is disposed between the movable plate and the fixed plate. The fixed plate has a first through hole for one electrode head to pass through, and the movable plate has a second through hole for another electrode head to pass through. Both the first through hole and the second through hole are disposed opposite to the grinding hole.

[0007] In one embodiment, the buffer includes a cylinder and a piston rod, the piston rod being movable relative to the cylinder, the cylinder being located on one side of the fixed plate, and one end of the piston rod passing through the fixed plate and abutting against the movable plate.

[0008] In one embodiment, the fixed plate is provided with a guide on the side opposite to the movable plate and / or the movable plate is provided with a guide groove for guiding the electrode head.

[0009] In one embodiment, the lifting mechanism includes a first housing, within which a first transmission assembly is disposed, and a first crank handle is also mounted on the first housing, the first crank handle being connected to the first transmission assembly; the lifting mechanism further includes a threaded rod, the threaded rod being arranged in a vertical direction, the first transmission assembly being connected to the threaded rod, and when the first crank handle rotates, it is used to cause the first transmission assembly to drive the first housing to move in a vertical direction relative to the threaded rod, the first housing being connected to the rotating mechanism.

[0010] In one embodiment, the first transmission assembly includes a worm gear, a worm, and a nut. The first crank is connected to the worm, the worm gear is fixedly connected to the nut, the nut is threadedly connected to the threaded rod, and the worm gear meshes with the worm. The first crank drives the worm to rotate, which in turn drives the worm gear to rotate. The rotational force of the worm gear drives the nut to move vertically along the threaded rod, and the nut pushes the first housing to move vertically.

[0011] In one embodiment, the lifting mechanism further includes a base, and the threaded rod is fixedly connected to the base; the electrode head grinding device further includes a guide rod, which is fixedly connected to the base and slidably connected to the first housing.

[0012] In one embodiment, the rotating mechanism includes a second crank handle, a second housing, a second transmission assembly, and an output shaft. The output shaft is connected to the mounting base. The second housing contains the second transmission assembly, which is connected to the second crank handle and the output shaft respectively.

[0013] In one embodiment, the second transmission assembly includes a bevel gear set comprising two bevel gears, one of which is fixed to the second crank handle and the other of which is fixed to the output shaft, the two bevel gears meshing.

[0014] In one embodiment, a disc is fixed on the guide rod, and the disc has multiple positioning holes along its circumference. After the second crank is rotated, it can be positioned and connected with the positioning holes at different positions.

[0015] In one embodiment, the mounting base is provided with a locking element, which is connected to the mounting base to fix the grinder.

[0016] As one implementation, a moving mechanism is also provided below the base.

[0017] The technical solution of this application has the following beneficial effects: The electrode tip grinding device includes a lifting mechanism and a rotating mechanism connected to the lifting mechanism. The lifting mechanism can drive the rotating mechanism to move up and down in the vertical direction, that is, adjust the height position of the rotating mechanism in the vertical direction, so as to facilitate the docking of the grinding head of the grinding device connected to the rotating mechanism with the electrode tip that needs to be ground. The electrode tip grinding device also includes a mounting base and a grinding device. The mounting base is connected to the rotating mechanism, and the grinding device is mounted on the mounting base. The rotating mechanism can drive the mounting base to rotate around a first axis, and the direction of extension of the first axis is perpendicular to the vertical direction. The grinding device includes a grinding head, which has the following characteristics: The grinding hole for inserting the electrode head has its axis perpendicular to the extension direction of the first axis. Thus, when the rotating mechanism drives the mounting base to rotate, it also adjusts the angle between the grinder and the electrode head accordingly, so that the axis of the grinding hole can be coaxial with the electrode head, making it easier for the electrode head to be inserted into the grinding hole. No one manually holds the grinder to grind the electrode head. Instead, the grinding hole is aligned with the electrode head through the cooperation of the lifting mechanism and the rotating mechanism. During the grinding process, the grinder is provided with a stable and continuous support force to ensure that the ground electrode head has excellent concentricity, end face flatness and surface quality. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments of this application will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A schematic diagram of the structure of the electrode head grinding device provided in the embodiments of this application; Figure 2 Schematic diagrams of the electrode head grinding device provided in the embodiments of this application from different perspectives; Figure 3 A schematic diagram of the electrode head grinding device provided in an embodiment of this application from another perspective; Figure 4A schematic diagram of the electrode head grinding device provided in the embodiments of this application for grinding the electrode head; Figure 5 This is a partial structural schematic diagram of the first transmission component provided in an embodiment of this application.

[0020] Icons: 1-Lifting mechanism; 11-First housing; 12-First crank handle; 13-Threaded rod; 14-Base; 15-Worm gear; 16-Worm; 17-Nut; 2-Rotating mechanism; 21-Second crank handle; 22-Second housing; 23-Output shaft; 3-Mounting base; 4-Grinding tool; 41-Grinding hole; 5-Fixed plate; 6-Moving plate; 62-Second through hole; 7-Buffer component; 71-Cylinder body; 72-Piston rod; 8-Guide component; 9-Guide rod; 10-Disc; 20-Locking component; 30-Adapter plate; 40-Ring sleeve. Detailed Implementation

[0021] The technical solutions in the embodiments of this application will now be described with reference to the accompanying drawings.

[0022] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, in the description of this application, terms such as "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0023] like Figure 1 and 2As shown, this application provides an electrode tip grinding device, including a lifting mechanism 1 and a rotating mechanism 2 connected to the lifting mechanism 1. The lifting mechanism 1 can drive the rotating mechanism 2 to move up and down in the vertical direction, that is, adjust the height position of the rotating mechanism 2 in the vertical direction, so as to facilitate the docking of the grinding head of the grinding device 4 connected to the rotating mechanism 2 with the electrode tip that needs to be ground. The electrode tip grinding device also includes a mounting base 3 and a grinding device 4. The mounting base 3 is connected to the rotating mechanism 2, and the grinding device 4 is mounted on the mounting base 3. The rotating mechanism 2 can drive the mounting base 3 to rotate around a first axis, and the direction of extension of the first axis is perpendicular to the vertical direction. The grinding device 4 includes a grinding head. The grinding head has a grinding hole 41 for inserting the electrode head. The axial direction of the grinding hole 41 is perpendicular to the extension direction of the first axis. Thus, when the rotating mechanism 2 drives the mounting base 3 to rotate, it also adjusts the angle between the grinding tool 4 and the electrode head accordingly, so that the axial direction of the grinding hole 41 can be coaxial with the electrode head, making it easy for the electrode head to be inserted into the grinding hole 41. No one manually holds the grinding tool 4 to grind the electrode head. Instead, the grinding hole 41 can be aligned with the electrode head through the cooperation of the lifting mechanism 1 and the rotating mechanism 2. During the grinding process, the grinding tool 4 is provided with a stable and continuous support force to ensure that the ground electrode head has excellent concentricity, end face flatness and surface quality.

[0024] Optionally, the first axis extends horizontally and is in the same direction as the length of the grinder 4. When the rotating mechanism 2 controls the grinder 4 to rotate, the axial direction of the grinding hole 41 is also in the same direction as the vertical direction at a certain angle.

[0025] Optionally, due to the different welding equipment, the types of electrode heads are also different. For example, there are pointed electrode heads, flat electrode heads, ball electrode heads, eccentric electrode heads, etc. Similarly, there are special grinders for different types of electrode heads. Therefore, in this embodiment, the grinder 4 and the mounting base 3 can be detached and connected, and the grinder 4 can be replaced for different types of electrode heads, thereby improving the product's adaptability.

[0026] like Figure 1 As shown, optionally, the electrode head grinding device in this embodiment of the application further includes a foot pedal pneumatic switch, which is connected to the grinder 4 and used to control the opening and closing of the grinder 4.

[0027] Optionally, the grinder 4 is a mature product. In the embodiments of this application, the grinder 4 can be selected from the prior art.

[0028] like Figure 4 As shown, optionally, the welding equipment generally includes two electrode heads, one configured as the upper electrode head and the other configured as the lower electrode head. Therefore, the grinder 4 in this embodiment can grind both electrode heads at the same time. Of course, it can also grind only one electrode head.

[0029] In addition, existing technologies also involve removing worn electrode tips from the welding torch and sending them to a specialized grinding station for grinding using a precision electrode grinding machine. After grinding, the electrode tips need to be reinstalled and aligned. However, the above process is cumbersome and time-consuming. The disassembly, transportation, alignment, and testing steps greatly increase non-productive time, and frequent disassembly affects the welding cycle. In contrast, the electrode tip grinding equipment in this application embodiment can perform high-precision grinding directly at the original position of the welding torch, thus solving the redundant steps of disassembly, alignment, and leakage testing in the electrode tip grinding solution. This maximizes production efficiency and equipment utilization while ensuring welding quality.

[0030] like Figure 1 As shown, in one embodiment, the electrode head grinding device also includes a fixed plate 5, a movable plate 6, and a buffer 7. The fixed plate 5 is fixedly connected to the mounting base 3. The movable plate 6 moves along the axial direction of the grinding hole 41 and toward the fixed plate 5. Along the axial direction of the grinding hole 41, the grinding head is located between the fixed plate 5 and the movable plate 6. The buffer 7 is located between the movable plate 6 and the fixed plate 5. The fixed plate 5 has a first through hole for one electrode head to pass through, and the movable plate 6 has a second through hole 62 for another electrode head to pass through. Both the first through hole and the second through hole 62 are arranged opposite to the grinding hole 41. In this way, when two electrode heads pass through the fixed plate 5 and the movable plate 6 respectively, they can correspond to the grinding hole 41, making it easy to insert them into the grinding hole 41 for grinding. The electrode arm connected to the electrode head is controlled by the pneumatic clamping switch of the welding equipment. The buffer 7 can counteract the clamping force generated by the electrode arm, preventing the grinder 4 from being overloaded or subjected to uneven force, which could easily cause indentations on the electrode head and render it unusable.

[0031] Optionally, the first through hole and the second through hole 62 are both arranged opposite to the grinding hole 41, including the first through hole and the second through hole 62 being coaxial with the grinding hole 41. Of course, they can also be slightly offset.

[0032] like Figure 4 As shown, optionally, the movable plate 6 is located below the fixed plate 5. This is because, generally, the electrode arm connected to the upper electrode head is the stationary arm, and the electrode arm connected to the lower electrode head is the movable arm. That is to say, the pneumatic clamping switch on the welding equipment controls the opening and closing angle between the movable arm located below and the stationary arm located above. Therefore, during actual grinding, the position of the grinding hole 41 can be controlled by the lifting mechanism 1 first, so that the upper electrode head is inserted into the grinding hole 41 through the first through hole on the fixed plate 5. Then, the movable arm is controlled to move towards the stationary arm, and the lower electrode head passes through the second through hole 62. The continuous clamping force provided by the movable arm is offset by the buffer 7, so that the lower electrode head can be smoothly inserted into the grinding hole 41.

[0033] Of course, in some cases, if the upper electrode head is controlled by a boom, the positional relationship between the fixed plate 5 and the movable plate 6 can also be controlled by the rotating mechanism 2 to rotate.

[0034] Optionally, during the grinding process, the welding torch power should be turned off first, which will open the welding equipment and position the movable plate 6 and the fixed plate 5 between the two electrode heads. The position and angle of the grinding hole 41 should be adjusted by the lifting mechanism 1 and the rotating mechanism 2 so that the electrode head on the stationary arm is inserted into the grinding hole 41. Then, the clamping switch should be activated to move the boom toward the stationary arm, and the electrode head on the boom should also be inserted into the grinding hole 41. The boom and the stationary arm should then clamp the fixed plate 5 and the movable plate 6.

[0035] Optionally, two buffers 7 can be provided between the movable plate 6 and the fixed plate 5.

[0036] Optionally, the movable plate 6 and the fixed plate 5 can be connected by multiple fasteners. The fasteners can be bolts, with one end having a nut that abuts against the movable plate 6 and the other end connecting to the fixed plate 5.

[0037] Optionally, the two ends of the support arm are connected to the fixing plate 5 and the mounting base 3, respectively.

[0038] like Figure 2 As shown, in one embodiment, the buffer 7 includes a cylinder 71 and a piston rod 72. The piston rod 72 is movable relative to the cylinder 71. The cylinder 71 is located on one side of the fixed plate 5. One end of the piston rod 72 passes through the fixed plate 5 and abuts against the movable plate 6. Thus, when the electrode head on the boom clamps the movable plate 6 and the fixed plate 5, the piston rod 72 is movable relative to the cylinder 71, thereby counteracting the clamping force brought by the boom.

[0039] Optionally, the cylinder 71 also contains hydraulic oil, and one end of the piston rod 72 is also equipped with a piston. When the piston rod 72 moves, the piston compresses the hydraulic oil. The hydraulic oil flows through the throttling orifice or gap on the piston. Due to the viscosity of the liquid and the limitation of the orifice size, a large resistance is generated, which converts the kinetic energy into heat energy and releases it, thereby achieving the purpose of counteracting the clamping force brought by the boom.

[0040] Optionally, in some cases, the buffer 7 can also be a spring.

[0041] like Figure 3 As shown, in one embodiment, the fixed plate 5 is provided with a guide member 8 on the side opposite to the movable plate 6 and / or the movable plate 6 is provided with a guide groove that can guide the electrode head. In this way, the electrode head can enter the grinding hole 41 more smoothly. At the same time, the guide member 8 can increase the contact area with the electrode head, so that the electrode head and the grinding hole 41 are coaxial.

[0042] Optionally, the guide groove can be a tapered groove, and the guide groove is coaxial with the grinding hole 41.

[0043] Optionally, the guide 8 can be set on the fixed plate 5, or on the movable plate 6, or both the fixed plate 5 and the movable plate 6 can be equipped with the guide 8.

[0044] like Figure 1 As shown, in one embodiment, the lifting mechanism 1 includes a first housing 11, a first transmission assembly is provided inside the first housing 11, and a first crank 12 is also installed on the first housing 11. The first crank 12 is connected to the first transmission assembly. The lifting mechanism 1 also includes a threaded rod 13, which is arranged in a vertical direction. The first transmission assembly is connected to the threaded rod 13. When the first crank 12 rotates, it transmits power to the first transmission assembly, which then drives the first housing 11 to move in a vertical direction relative to the threaded rod 13. Since the first housing 11 is also connected to the rotating mechanism 2, when the first housing 11 moves, it also drives the rotating mechanism 2 to move synchronously.

[0045] like Figure 5 As shown, in one embodiment, the first transmission assembly includes a worm gear 15, a worm 16, and a nut 17. The first crank 12 is connected to the worm 16, the worm gear 15 is fixedly connected to the nut 17, and the nut 17 is threadedly connected to the threaded rod 13. The worm gear 15 meshes with the worm 16. When the first crank 12 rotates, it drives the worm 16 to rotate and simultaneously drives the worm gear 15 to rotate. The rotational force of the worm gear 15 drives the nut 17 to move vertically along the threaded rod 13. The nut 17 can then push the first housing 11 to move vertically, thereby achieving the lifting purpose of the lifting mechanism 1.

[0046] Optionally, the internal thread of the nut 17 engages with the threaded rod 13. Thrust bearings can be installed at both ends of the nut 17 facing the first housing 11. The worm gear 15 can be sleeved on the outer circumference of the nut 17. The outer ring of the thrust bearing is connected to the first housing 11, and the inner ring is connected to the nut 17. In this way, when the worm 16 provides rotational power to the worm gear 15, the rotational power of the worm gear 15 is transmitted to the nut 17, and the nut 17 can move up and down along the axial direction of the threaded rod 13. While the nut 17 moves up and down along the axial direction, it will drive the inner ring of the thrust bearing to rotate together. The outer ring of the thrust bearing is fixedly connected to the first housing 11, which will drive the first housing 11 to move up and down along the axial direction. In addition, the outside of the first housing 11 can be connected to the guide rod 9 to prevent the first housing 11 from rotating synchronously with the nut 17, thereby allowing the first housing 11 to move in the vertical direction, which also increases the stability of the first housing 11 during movement and prevents the first housing 11 from shaking.

[0047] like Figure 1As shown, in one embodiment, the lifting mechanism 1 also includes a base 14, and the threaded rod 13 is fixedly connected to the base 14; the electrode head grinding device also includes a guide rod 9, which is fixedly connected to the base 14 and slidably connected to the first housing 11, so that the first housing 11 can move in the vertical direction and avoid the first housing 11 from shaking, thereby improving the stability during movement.

[0048] like Figure 3 As shown, optionally, the first outer shell 11 and the second outer shell 22 can be connected by an adapter plate 30. A ring 40 is provided on one side of the adapter plate 30, and the ring 40 is sleeved on the outer periphery of the guide rod 9, thereby realizing the sliding connection between the first outer shell 11 and the guide rod 9.

[0049] Optionally, in some cases, the lifting mechanism 1 can also be replaced with an electric one.

[0050] like Figure 3 As shown, in one embodiment, the rotating mechanism 2 includes a second crank 21, a second housing 22, a second transmission assembly, and an output shaft 23. The output shaft 23 is connected to the mounting base 3. The second housing 22 is provided with the second transmission assembly, which is connected to the second crank 21 and the output shaft 23 respectively. In this way, the power of the second crank 21 can be transmitted to the output shaft 23 through the second transmission assembly. When the output shaft 23 rotates, it drives the mounting base 3 to rotate.

[0051] Optionally, the axial direction of the output shaft 23 is the extension direction of the first axis.

[0052] Optionally, the output shaft 23 can be connected to the mounting base 3 via a support arm.

[0053] In one embodiment, the second transmission assembly includes a bevel gear set (not shown in the figure), comprising two bevel gears, one of which is fixed to the second crank handle 21 and the other is fixed to the output shaft 23. The two bevel gears mesh, so that the power of the second crank handle 21 can be transmitted to the output shaft 23 through the bevel gears, and the output shaft 23 can control the rotation of the mounting base 3.

[0054] like Figure 1 As shown, optionally, to improve stability, the second crank 21 can pass through the second housing 22, and the connection position with the second housing 22 is connected by a bearing. In addition, the two bevel gears also need to be fixedly connected to the second crank 21 and the output shaft 23 respectively, and the output shaft 23 is also connected to the second housing 22 by a bearing to improve stability. One end of the output shaft 23 is connected to the mounting base 3, and the other end can pass through the second housing 22.

[0055] like Figure 2 and 3As shown, in one embodiment, a disc 10 is fixed on the guide rod 9. The disc 10 has multiple positioning holes along its circumference. After the second crank 21 is rotated, it can be positioned and connected with the positioning holes at different positions. In this way, the disc 10 locks the rotated second crank 21, so that the rotated mounting base 3 is fixed at the corresponding rotation angle.

[0056] Optionally, the positioning hole and the second crank 21 can be connected by a pin.

[0057] like Figure 3 As shown, in one embodiment, the mounting base 3 is provided with a locking member 20, which is connected to the mounting base 3 and used to fix the grinder 4. The locking member 20 can fix the grinder 4 and improve the stability between the grinder 4 and the mounting base 3. Optionally, the locking element 20 is detachably connected to the mounting base 3, which allows the embodiments of this application to replace different types of grinders 4 for different types of electrode heads.

[0058] As one implementation, a moving mechanism is also provided below the base 14. The moving mechanism can drive the electrode head grinding equipment to move as a whole, eliminating the need for handling and facilitating docking with the electrode head.

[0059] Optionally, the moving mechanism can be a caster wheel.

[0060] The above description is merely an embodiment of this application and is not intended to limit the scope of protection of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

[0061] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

[0062] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A device for grinding electrode tips, characterized in that, include: Lifting mechanism; A rotating mechanism is connected to the lifting mechanism, and the lifting mechanism is used to drive the rotating mechanism to move up and down in the vertical direction; A mounting base is connected to the rotating mechanism, which drives the mounting base to rotate about a first axis, the vertical direction being perpendicular to the extension direction of the first axis; A grinding tool is mounted on the mounting base. The grinding tool includes a grinding head having a grinding hole for inserting an electrode head, the axis of which is perpendicular to the extension direction of the first axis.

2. The electrode head grinding equipment according to claim 1, characterized in that, The electrode head grinding device further includes a fixed plate, a movable plate, and a buffer. The fixed plate is fixedly connected to the mounting base. The movable plate is movably disposed on the fixed plate along the axial direction of the grinding hole. Along the axial direction of the grinding hole, the grinding head is located between the fixed plate and the movable plate. The buffer is disposed between the movable plate and the fixed plate. The fixed plate is provided with a first through hole for one of the electrode heads to pass through, and the movable plate is provided with a second through hole for another electrode head to pass through. Both the first through hole and the second through hole are arranged opposite to the grinding hole.

3. The electrode head grinding equipment according to claim 2, characterized in that, The buffer includes a cylinder and a piston rod. The piston rod is movable relative to the cylinder. The cylinder is located on one side of the fixed plate. One end of the piston rod passes through the fixed plate and abuts against the movable plate.

4. The electrode head grinding equipment according to claim 2 or 3, characterized in that, The fixed plate is provided with a guide on the side opposite to the movable plate and / or the movable plate is provided with a guide groove for guiding the electrode head.

5. The electrode head grinding device according to any one of claims 1 to 3, characterized in that, The lifting mechanism includes a first housing, a first transmission component is provided inside the first housing, and a first crank handle is also installed on the first housing, the first crank handle being connected to the first transmission component; The lifting mechanism further includes a threaded rod arranged in a vertical direction. The first transmission component is connected to the threaded rod. When the first crank is rotated, it is used to drive the first housing to move in a vertical direction relative to the threaded rod. The first housing is connected to the rotating mechanism.

6. The electrode head grinding device according to claim 5, characterized in that, The first transmission assembly includes a worm gear, a worm, and a nut. The first crank is connected to the worm, the worm gear is fixedly connected to the nut, the nut is threadedly connected to the threaded rod, and the worm gear meshes with the worm. The first crank drives the worm to rotate, which in turn drives the worm gear to rotate. The rotational force of the worm gear drives the nut to move vertically along the threaded rod, and the nut pushes the first housing to move vertically.

7. The electrode head grinding device according to claim 6, characterized in that, The lifting mechanism also includes a base, and the threaded rod is fixedly connected to the base; The electrode head grinding device also includes a guide rod, which is fixedly connected to the base and slidably connected to the first outer shell.

8. The electrode head grinding device according to claim 7, characterized in that, The rotating mechanism includes a second crank, a second housing, a second transmission assembly, and an output shaft. The output shaft is connected to the mounting base. The second housing contains the second transmission assembly, which is connected to the second crank and the output shaft respectively.

9. The electrode head grinding device according to claim 8, characterized in that, The second transmission assembly includes a bevel gear set comprising two bevel gears, one of which is fixed to the second crank handle and the other is fixed to the output shaft, the two bevel gears meshing.

10. The electrode head grinding device according to claim 9, characterized in that, A disc is fixed on the guide rod, and the disc has multiple positioning holes along its circumference. After the second crank is rotated, it can be positioned and connected with the positioning holes at different positions.

11. The electrode head grinding apparatus according to any one of claims 1 to 3, characterized in that, The mounting base is provided with a locking element, which is connected to the mounting base to fix the grinder.

12. The electrode head grinding device according to claim 7, characterized in that, A moving mechanism is also provided below the base.

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