An adaptive electrode clamping device capable of stable clamping

Abstract

The present invention relates to the technical field of clampers, and specifically to an adaptive electrode clamping device that can stably clamp an electrode. The check body extends into the check groove, and the vertical edge of the check body abuts against the vertical edge of the check groove to prevent the clamping needle from continuing to retract, thereby always providing sufficient clamping force for the electrode and preventing the electrode from falling off from the clamping portion due to external force vibration, resulting in power supply interruption. The hollow No. 1 spring introduces external cold air flow into the air inlet duct inside the clamp body, and the air inlet duct is serrated. When the cold air flow is blown into the side wall of the air inlet duct, it is rebounded and continues to move forward, forming vortices in the serrations, extending the contact time between the cold air flow and the clamp body, taking away more heat, and improving the cooling effect. The cold air flow then passes through each hole groove and enters the No. 1 spring below, and flows into the air outlet duct inside the clamping plate, taking away the heat of the clamp body, the No. 1 spring, the clamping needle and the No. 2 spring, and discharging it through the air outlet, thereby preventing the various components of the clamp block from being deformed, reducing the clamping force on the electrode, causing the electrode to fall off, and interrupting the reaction.

Description

Technical Field

[0001] The invention relates to the technical field of clampers, and in particular to an adaptive electrode clamping device capable of stably clamping. Background Art

[0002] The electrode holder is a conductive joint part of an electric furnace. It is a device for fixing electrodes. It can transmit current to the electrode by clamping the electrode. When the electrode is released, the current of the electrode is disconnected. It is responsible for connecting the large current combined conductor with the electrode, transmitting electric energy, holding the electrode tightly and moving it frequently. T2 copper and chrome-zirconium copper are generally used to manufacture electrode holders in China. Chromium zirconium copper (CuCrZr) has high strength and hardness, electrical conductivity and thermal conductivity, good wear resistance and anti-friction properties. After forging and aging treatment with special processes, its hardness, strength, electrical conductivity and thermal conductivity are significantly improved. It is easy to weld and can be used to make spark electrodes to produce a relatively ideal mirror surface. At the same time, it has good upright performance and can complete the effects of thin sheets and other pure red copper that are difficult to achieve. It performs well on difficult-to-process materials such as tungsten steel. Chromium zirconium copper has good electrical conductivity, thermal conductivity, high hardness, wear resistance, explosion resistance, crack resistance and high softening temperature. There is less electrode loss during welding, fast welding speed and low total welding cost. It is suitable as an electrode-related pipe fitting for fusion welding machines, but it performs generally well on electroplated workpieces. It has a long service life, which is 30%-50% higher than that of T2 copper. It is recommended to promote its use.

[0003] The traditional electrode holder is provided with teeth at the contact part with the electrode to increase the friction between the two and enhance the clamping force of the electrode holder on the electrode. However, the teeth reduce the contact area between the electrode holder and the electrode, increase the resistance, generate more heat, increase the power loss between the electrode holder and the electrode, and are not conducive to energy saving and consumption reduction. If no teeth are provided, the friction between the electrode holder and the electrode is small, and the electrode is easy to fall off from the electrode holder, resulting in circuit disconnection. Summary of the invention

[0004] The main purpose of the present invention is to provide an adaptive electrode clamping device that can stably clamp, so as to solve the problem proposed in the related art that the teeth of the electrode clamp reduce the contact area between the electrode clamp and the electrode, increase the resistance, generate more heat, increase the power loss between the electrode clamp and the electrode, and are not conducive to energy saving and consumption reduction; if no teeth are provided, the friction between the electrode clamp and the electrode is small, the electrode is easy to fall off from the electrode clamp, resulting in circuit disconnection.

[0005] In order to achieve the above-mentioned object, according to one aspect of the present invention, there is provided an adaptive electrode clamping device capable of stable clamping, comprising: a fixing portion, the fixing portion providing support for the clamping device and fixing it on an electric furnace;

[0006] A transmission part, which is arranged on the fixed part and provides power for the clamping device. When the transmission part is tightened, the clamping device clamps the electrode, and when the transmission part is opened, the clamping device releases the electrode;

[0007] The clamping part is arranged at the end of the transmission part, and includes two identical parts, and the two identical parts are symmetrically arranged. When the transmission part is tightened, the clamping parts move toward each other, and when the transmission part is opened, the clamping parts move away from each other;

[0008] The wiring terminal is fixed on the upper surface of the fixing portion to introduce current into the clamping device.

[0009] Furthermore, the fixing part includes two fixing plates, a supporting block, a rear plate and a connecting plate No. 1, one end of the two fixing plates are respectively fixed at the top and bottom of the rear plate, the supporting block is fixed between the two fixing plates and opposite to the rear plate, the connecting plate No. 1 is fixed to the side of the fixing plate, and the clamping device is installed on the electric furnace.

[0010] Furthermore, the transmission part includes a power source, a screw, a screw nut and two connecting rod parts. The screw passes through the rear plate and is inserted into the support block. The screw can rotate in the rear plate and the support block. The two connecting rod parts are symmetrically arranged on both sides of the screw.

[0011] Furthermore, the connecting rod portion includes rod No. 1, rod No. 2, rod No. 3, rod No. 4, rod No. 5 and a vertical rod, one end of rod No. 1 is fixedly connected to the screw nut, and the other end is rotatably connected to the end of rod No. 2, the other end of rod No. 2 is rotatably connected to the end of rod No. 3, the other end of rod No. 3 is fixedly connected to the end of rod No. 4, the other end of rod No. 4 is rotatably connected to the clamping portion, the vertical rod is arranged at the connection between rod No. 3 and rod No. 4, the vertical rod is fixedly connected to a fixed plate, and rod No. 3 and rod No. 4 can both rotate around the vertical rod, one end of rod No. 5 is rotatably connected to the fixed plate, and the other end is rotatably connected to the clamping portion.

[0012] Furthermore, the power source is fixedly arranged on the outer side of the rear plate to drive the screw to rotate, and the screw nut is sleeved on the outer ring of the screw. When the screw rotates, the screw nut is driven to move forward and backward.

[0013] Furthermore, the clamping part includes a No. 2 connecting plate, a clamping plate, a plurality of clamping blocks, a buffer block, a plurality of protrusions, an air inlet and an air outlet, the clamping plate is fixedly arranged on the outer side of the No. 2 connecting plate, and the No. 4 rod and the No. 5 rod are both rotatably connected to the No. 2 connecting plate.

[0014] Furthermore, an air inlet and an air outlet are provided in the clamping plate, and the air inlet and the air outlet are both provided on the inner side of the No. 2 connecting plate, the air inlet is connected to the air inlet, and the air outlet is connected to the air outlet, and the cold air flows into the air inlet from the air inlet, flows into the air outlet, and is discharged from the air outlet. A plurality of grooves are provided on the inner surface of the clamping plate, and the clamping blocks are all provided in the grooves of the clamping plate and can slide back and forth along the grooves, the buffer block is fixedly provided at the end of the clamping plate, and the protrusions are all fixedly provided on the outer surface of the buffer block.

[0015] Furthermore, the clamping block includes a clamping body, two No. 1 springs, a plurality of clamping pins, a plurality of holes, a plurality of No. 2 springs and a plurality of check blocks. The clamping body is also provided with an air inlet and an air outlet. The air inlet and the air outlet connect the plurality of holes together. The two No. 1 springs are hollow springs, one end of which is fixedly connected to the back of the clamping body, and the other end of which is fixedly connected to the clamping plate. The No. 1 springs are located in the groove of the clamping plate. One end of one of the No. 1 springs of the clamping block is connected to the air inlet of the clamping plate, and the other end is connected to the air inlet of the clamping body. Another No. 1 spring of the same clamping block has one end connected to the air outlet of the clamping plate, and the other end is connected to the air outlet of the clamping body.

[0016] Furthermore, the holes and grooves are all arranged on the surface of the clamp body, the No. 2 spring is located in the hole and groove, one end of the No. 2 spring is fixedly connected to the clamp body, and the other end is fixedly connected to one end of the clamp needle, and the No. 2 spring and the clamp needle can both slide back and forth along the hole and groove.

[0017] Furthermore, the check block is fixed in the hole groove, and the check block includes a support leg and a check body. The support leg is fixedly connected to the clamp body, and the check body is fixedly connected to the support leg. The check body can rotate around the support leg when under pressure, and a plurality of check grooves are provided on the surface of the clamp needle. When the check body extends into the check groove, the check block presses against the clamp needle, and the clamp needle cannot move toward the hole groove.

[0018] Compared with the prior art, the present invention has the following beneficial effects: the No. 2 spring pushes the clamping needle out of the hole groove and extends it into the indentation on the electrode surface, thereby increasing the contact area between the clamping part and the electrode, ensuring that the electrode surface can conduct electricity evenly, avoiding excessive local current and damaging the electrode; when an external force causes the electrode to vibrate, the electrode deviates to one side of the clamping part, squeezing the clamping needle on the same side and pressing it toward the hole groove; when the check block is below the check groove, the clamping needle no longer squeezes the check block, and the check body rotates upward around the support leg and extends into the check groove. The vertical edge of the check body presses against the vertical edge of the check groove to prevent the clamping needle from continuing to retract, always providing sufficient clamping force for the electrode, and preventing the electrode from falling off from the clamping part due to external force vibration, resulting in power supply interruption; the No. 1 spring pushes the clamping body out of the groove of the clamping plate , fill the dents on the electrode surface, increase the contact area between the clamping part and the electrode, ensure that the electrode surface can conduct electricity evenly, avoid excessive local current and damage the electrode; the hollow No. 1 spring introduces the external cold air flow into the air inlet duct inside the clamp body. The air inlet duct is serrated. When the cold air flow blows into the side wall of the air inlet duct, it is rebounded and continues to move forward, forming eddy currents in the serrations, prolonging the contact time between the cold air flow and the clamp body, taking away more heat and improving the cooling effect. The cold air flow then passes through the holes and slots and enters the No. 1 spring below, flows into the air outlet duct inside the clamping plate, takes away the heat of the clamp body, No. 1 spring, clamping needle and No. 2 spring, and discharges it through the air outlet to prevent the deformation of the components of the clamp block, reduce the clamping force on the electrode, cause the electrode to fall off, and interrupt the reaction. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is an overall schematic diagram of the present invention;

[0020] Figure 2 It is a structural schematic diagram of the fixing part of the present invention;

[0021] Figure 3 It is a schematic diagram of the transmission structure of the present invention;

[0022] Figure 4 It is a schematic diagram of the structure of the clamping part of the present invention;

[0023] Figure 5 The structure of the clamp block of the present invention is shown in FIG. Figure 1 ;

[0024] Figure 6 The clamping block structure of the present invention is shown in FIG. Figure 2 ;

[0025] Figure 7 It is a cross-sectional view of the clamp block of the present invention;

[0026] Figure 8 It is a schematic diagram of the needle clamping structure of the present invention;

[0027] Fig. 9 It is a schematic diagram of the structure of the check block of the present invention;

[0028] Fig.10 This is a schematic diagram of the plane airflow of the clamp block of the present invention;

[0029] Fig.11 It is a schematic diagram of the longitudinal airflow of the clamp block of the present invention.

[0030] Illustration Description:

[0031] 1. Fixing part; 11. Fixing plate; 12. Support block; 13. Back plate; 14. No. 1 connecting plate;

[0032] 2. Transmission unit; 21. Power source; 22. Screw rod; 23. Screw rod nut; 24. Rod No. 1; 25. Rod No. 2; 26. Rod No. 3; 27. Rod No. 4; 28. Rod No. 5; 29. ​​Vertical rod;

[0033] 3. Clamping part; 31. No. 2 connecting plate; 32. Clamping plate; 33. Clamping block; 34. Buffer block; 35. Protrusion; 36. Air inlet; 37. Air outlet; 331. Clamping body; 332. No. 1 spring; 333. Clamping needle; 334. Hole slot; 335. No. 2 spring; 336. Check block; 3331. Check slot; 3361. Leg; 3362. Check body;

[0034] 4. Wiring terminal. DETAILED DESCRIPTION

[0035] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation mode, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0036] See also Figures 1 to 11 , This embodiment provides an adaptive electrode clamping device capable of stable clamping, comprising: a fixing portion 1, the fixing portion 1 provides support for the clamping device and fixes it on the electric furnace;

[0037] The transmission part 2 is arranged on the fixing part 1 and provides power for the clamping device. When the transmission part 2 is tightened, the clamping device clamps the electrode, and when the transmission part 2 is opened, the clamping device releases the electrode;

[0038] The clamping part 3 is arranged at the end of the transmission part 2, and includes two identical parts, and the two identical parts are symmetrically arranged. When the transmission part 2 is tightened, the clamping part 3 moves toward each other, and when the transmission part 2 is opened, the clamping part 3 moves away from each other;

[0039] The terminal 4 is fixed on the upper surface of the fixing part 1 to introduce the current into the clamping device.

[0040] The fixing part 1 includes two fixing plates 11, a supporting block 12, a rear plate 13 and a connecting plate No. 14. One ends of the two fixing plates 11 are fixedly arranged at the top and bottom of the rear plate 13 respectively. The supporting block 12 is fixedly arranged between the two fixing plates 11 and is opposite to the rear plate 13. The connecting plate No. 14 is fixedly arranged at the side of the fixing plates 11, and the clamping device is installed on the electric furnace.

[0041] The transmission part 2 includes a power source 21, a screw rod 22, a screw nut 23 and two connecting rod parts. The screw rod 22 passes through the rear plate 13 and is inserted into the support block 12. The screw rod 22 can rotate in the rear plate 13 and the support block 12. The two connecting rod parts are symmetrically arranged on both sides of the screw rod 22.

[0042] The connecting rod portion includes a rod 24, a rod 25, a rod 26, a rod 27, a rod 28 and a vertical rod 29. One end of the rod 24 is fixedly connected to the screw nut 23, and the other end is rotatably connected to the end of the rod 25. The other end of the rod 25 is rotatably connected to the end of the rod 3. The other end of the rod 26 is fixedly connected to the end of the rod 4. The other end of the rod 27 is rotatably connected to the clamping portion 3. The vertical rod 29 is arranged at the connection between the rod 3 and the rod 4. The vertical rod 29 is fixedly connected to the fixed plate 11. The rod 3 and the rod 4. 27 can both rotate around the vertical rod 29. One end of the rod 28 is rotatably connected to the fixed plate 11, and the other end is rotatably connected to the clamping portion 3.

[0043] The power source 21 is fixedly arranged on the outer side of the rear plate 13. In this embodiment, a motor is preferably used as the power source 21 to drive the screw 22 to rotate. The screw nut 23 is sleeved on the outer ring of the screw 22. When the screw 22 rotates, it drives the screw nut 23 to move forward and backward. When the screw nut 23 moves backward, the No. 1 rod 24 pulls the No. 2 rod 25 to move backward. The backward moving No. 2 rod 25 drives the end of the No. 3 rod 26 to rotate outward around the vertical rod 29, and the No. 3 rod 26 drives the end of the No. 4 rod 27 to rotate inward. The No. 5 rod 28 rotates with the No. 4 rod 27, so that the two clamping parts 3 rotate in opposite directions to clamp the electrode. Similarly, when the screw nut 23 moves forward, the electrode is loosened.

[0044] The clamping portion 3 includes a second connecting plate 31, a clamping plate 32, a plurality of clamping blocks 33, a buffer block 34, a plurality of protrusions 35, an air inlet 36 and an air outlet 37. The clamping plate 32 is fixedly arranged on the outer side of the second connecting plate 31, and the fourth rod 27 and the fifth rod 28 are both rotatably connected to the second connecting plate 31.

[0045] An air inlet and an air outlet are provided in the clamping plate 32. The air inlet 36 and the air outlet 37 are both provided on the inner side of the second connecting plate 31. The air inlet 36 is connected to the air inlet, and the air outlet 37 is connected to the air outlet. The cold air flows into the air inlet from the air inlet 36, flows into the air outlet, and is discharged from the air outlet 37. A plurality of grooves are provided on the inner surface of the clamping plate 32. The clamping blocks 33 are all provided in the grooves of the clamping plate 32 and can slide back and forth along the grooves. The buffer block 34 is fixed at the end of the clamping plate 32, and the protrusions 35 are all fixed on the outer surface of the buffer block 34. In case of operational errors and excessive clamping of the electrode, the protrusions 35 on both sides squeeze each other, consume part of the pressure, reduce the pressure of the clamping part 3 on the electrode, and prevent damage to the electrode. At the same time, the buffer block 34 is deformed and continues to consume the pressure of the clamping part 3 on the electrode.

[0046] The clamping block 33 includes a clamping body 331, two No. 1 springs 332, a plurality of clamping needles 333, a plurality of hole grooves 334, a plurality of No. 2 springs 335 and a plurality of check blocks 336. An air inlet and an air outlet are also provided in the clamping body 331. The air inlet and the air outlet connect the plurality of hole grooves 334 together. The two No. 1 springs 332 are both hollow springs, one end of which is fixedly connected to the back of the clamping body 331, and the other end is fixedly connected to the clamping plate 32. The No. 1 spring 332 is located in the groove of the clamping plate 32. One end of one of the No. 1 springs 332 of the clamping block 33 is connected to the air inlet of the clamping plate 32, and the other end is connected to the air inlet of the clamping body 331. One end of another No. 1 spring 332 of the same clamping block 33 is connected to the air outlet of the clamping plate 32, and the other end is connected to the air outlet of the clamping body 331. The air outlet and air inlet of the embodiment are both serrated air ducts. The cold air flow enters the air inlet inside the clamping plate 32 from the air inlet 36, and flows into the air inlet inside the clamping body 331 through the central cavity of each No. 1 spring 332 above. When the cold air flow blows into the side wall of the air inlet, it is rebounded and then continues to move forward, forming vortices in the serrations, which prolongs the contact time between the cold air flow and the clamping body 331, takes away more heat, and improves the cooling effect. The cold air flow then passes through each hole groove 334 and enters the No. 1 spring 332 below, and flows into the air outlet inside the clamping plate 32, taking away the heat of the clamping body 331, No. 1 spring 332, clamping needle 333 and No. 2 spring 335, and is discharged through the air outlet 37, thereby preventing the various components of the clamping block 33 from being deformed, reducing the clamping force of the electrode, causing the electrode to fall off, and interrupting the reaction.

[0047] The holes and grooves 334 are all arranged on the surface of the clamp body 331, and the No. 2 spring 335 is located in the hole and groove 334. One end of the No. 2 spring 335 is fixedly connected to the clamp body 331, and the other end is fixedly connected to one end of the clamp needle 333. The No. 2 spring 335 and the clamp needle 333 can both slide back and forth along the hole and groove 334.

[0048] The check block 336 is fixed in the hole groove 334, and the check block 336 includes a support leg 3361 and a check body 3362. The support leg 3361 is fixedly connected to the clamp body 331, and the check body 3362 is fixedly connected to the support leg 3361. The check body 3362 can rotate around the support leg 3361 when under pressure. A plurality of check grooves 3331 are provided on the surface of the clamping needle 333. When the check body 3362 extends into the check groove 3331, the check block 336 presses against the clamping needle 333, and the clamping needle 333 cannot move toward the hole groove 334, and always presses against the electrode to make the electrode evenly conductive, thereby avoiding excessive local current from damaging the electrode.

[0049] Turn on the power source 21 to drive the screw rod 22 to rotate. The rotating screw rod 22 pushes the screw nut 23 to move backward. The screw nut 23 pulls the No. 2 rod 25 to move backward through the No. 1 rod 24. The backward-moving No. 2 rod 25 drives the end of the No. 3 rod 26 to rotate outward around the vertical rod 29. The No. 3 rod 26 drives the end of the No. 4 rod 27 to rotate inward. The No. 5 rod 28 rotates with the No. 4 rod 27, so that the two clamping parts 3 rotate in opposite directions to clamp the electrode. The electrode squeezes the clamping needle 333, generating a backward thrust on it, so that the No. 2 spring 335 retracts, the clamping needle 333 is pressed into the hole groove 334, and squeezes the clamping body 331 backward, and the clamping body 331 pushes The first spring 332 is retracted to make the clamp body 331 sink into the groove of the clamping plate 32; the external power line is connected to the terminal 4, and the current flows from the terminal 4 into the wire in the fourth rod 27, and then into the clamping plate 32. The current in the clamping plate 32 is transmitted to the electrode through the clamp body 331 and the clamping needle 333. The electrode starts to heat up after being energized, and heats the surrounding materials in contact with it, causing a series of reactions in the materials; as the heating progresses, the electrode is worn out, and dents appear on the surface, the local squeezing force on the clamping needle 333 is reduced, and the second spring 335 corresponding to the clamping needle 333 rebounds, pushing the clamping needle 333 out of the hole 334, extending The clamping part 333 is inserted into the indentation on the electrode surface, increasing the contact area between the clamping part 3 and the electrode, ensuring that the electrode surface can conduct electricity evenly, avoiding excessive local current and damaging the electrode. When the clamping needle 333 is pushed out of the hole groove 334, the check block 336 is squeezed, so that the check body 3362 rotates downward around the support leg 3361, so that the clamping needle 333 is smoothly pushed out. When the external force causes the electrode to vibrate, the electrode deviates to one side of the clamping part 3, squeezing the clamping needle 333 on the same side and pressing it toward the hole groove 334. When the check block 336 is below the check groove 3331, the clamping needle 333 no longer squeezes the check block 336, and the check body 3362 rotates upward around the support leg 3361. The clamping plate 331 is moved and extends into the non-return groove 3331. The vertical edge of the non-return body 3362 abuts against the vertical edge of the non-return groove 3331, preventing the clamping needle 333 from continuing to retract, always providing sufficient clamping force for the electrode, and preventing the electrode from falling off from the clamping part 3 due to external force vibration, resulting in power supply interruption; if the dent on the electrode surface is too large, its positive projection area is larger than the area of ​​the clamping block 33, the pressure on the clamping block 33 is reduced, and the No. 1 spring 332 rebounds, pushing the clamping body 331 out of the groove of the clamping plate 32, filling the dent on the electrode surface, increasing the contact area between the clamping part 3 and the electrode, ensuring that the electrode surface can be evenly conductive, and avoiding excessive local current and damage to the electrode;The electrode transfers its own heat to the clamping part 3, the temperature of the clamping part 3 rises, and the external cold air enters the air inlet duct inside the clamping plate 32 from the air inlet 36, and flows into the air inlet duct inside the clamping body 331 through the central cavity of each No. 1 spring 332 above. The air inlet duct is sawtooth-shaped. When the cold air flow blows into the side wall of the air inlet duct, it is rebounded and continues to move forward, forming vortices in the sawtooth, prolonging the contact time between the cold air flow and the clamping body 331, taking away more heat, and improving the cooling effect. The cold air flow then passes through each hole slot 334 and enters the No. 1 spring 332 below, and flows into the air outlet duct inside the clamping plate 32, taking away the heat of the clamping body 331, the No. 1 spring 332, the clamping needle 333 and the No. 2 spring 335, and is discharged through the air outlet 37, preventing the deformation of the components of the clamping block 33, reducing the clamping force of the electrode, causing the electrode to fall off, and interrupting the reaction. ;

[0050] The above are only preferred embodiments of the present invention, and are not intended to limit the present invention in any form. Although the present invention has been disclosed as above in the form of preferred embodiments, it is not intended to limit the present invention. Any technical personnel in the field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. An adaptive electrode clamping device capable of stable clamping, characterized in that: include: A fixing part (1), wherein the fixing part (1) provides support for the clamping device and fixes it on the electric furnace; A transmission part (2), the transmission part (2) being arranged on the fixing part (1) and providing power for the clamping device; when the transmission part (2) is tightened, the clamping device clamps the electrode; and when the transmission part (2) is opened, the clamping device releases the electrode; A clamping portion (3), the clamping portion (3) being arranged at the end of the transmission portion (2), comprising two identical parts, and the two identical parts being arranged symmetrically, and when the transmission portion (2) is tightened, the clamping portions (3) move towards each other, and when the transmission portion (2) is opened, the clamping portions (3) move away from each other; A wiring terminal (4), the wiring terminal (4) being fixedly arranged on the upper surface of the fixing portion (1) to introduce current into the clamping device; The clamping portion (3) comprises a second connecting plate (31), a clamping plate (32), a plurality of clamping blocks (33), a buffer block (34), a plurality of protrusions (35), an air inlet (36) and an air outlet (37), wherein the clamping plate (32) is fixedly arranged on the outside of the second connecting plate (31); An air inlet and an air outlet are provided in the clamping plate (32), and the air inlet (36) and the air outlet (37) are both provided on the inner side of the second connecting plate (31). The air inlet (36) is connected to the air inlet, and the air outlet (37) is connected to the air outlet. Cold air flows into the air inlet from the air inlet (36), flows into the air outlet, and is discharged from the air outlet (37). A plurality of grooves are provided on the inner surface of the clamping plate (32), and the clamping blocks (33) are all provided in the grooves of the clamping plate (32) and can slide back and forth along the grooves. The buffer block (34) is fixedly provided at the end of the clamping plate (32), and the protrusions (35) are all fixedly provided on the outer surface of the buffer block (34).

2. The adaptive electrode clamping device capable of stable clamping according to claim 1, characterized in that: The fixing portion (1) comprises two fixing plates (11), a support block (12), a rear plate (13) and a first connecting plate (14); one end of the two fixing plates (11) is fixedly arranged at the top and the bottom of the rear plate (13), respectively; the support block (12) is fixedly arranged between the two fixing plates (11) and opposite to the rear plate (13); the first connecting plate (14) is fixedly arranged at the side of the fixing plate (11); and the clamping device is installed on the electric furnace.

3. The adaptive electrode clamping device capable of stable clamping according to claim 2, characterized in that: The transmission part (2) comprises a power source (21), a screw rod (22), a screw rod nut (23) and two connecting rod parts. The screw rod (22) passes through the rear plate (13) and is inserted into the support block (12). The screw rod (22) is rotatable in both the rear plate (13) and the support block (12). The two connecting rod parts are symmetrically arranged on both sides of the screw rod (22).

4. The adaptive electrode clamping device capable of stable clamping according to claim 3, characterized in that: The connecting rod portion comprises a first rod (24), a second rod (25), a third rod (26), a fourth rod (27), a fifth rod (28) and a vertical rod (29); one end of the first rod (24) is fixedly connected to the screw nut (23), and the other end is rotatably connected to the end of the second rod (25); the other end of the second rod (25) is rotatably connected to the end of the third rod (26); the other end of the third rod (26) is fixedly connected to the end of the fourth rod (27); the other end of the fourth rod (27) is The vertical rod (29) is rotatably connected to the clamping portion (3); the vertical rod (29) is arranged at the connection between the third rod (26) and the fourth rod (27); the vertical rod (29) is fixedly connected to the fixing plate (11); the third rod (26) and the fourth rod (27) can both rotate around the vertical rod (29); one end of the fifth rod (28) is rotatably connected to the fixing plate (11), and the other end is rotatably connected to the clamping portion (3); the fourth rod (27) and the fifth rod (28) are both rotatably connected to the second connecting plate (31).

5. The adaptive electrode clamping device capable of stable clamping according to claim 3, characterized in that: The power source (21) is fixedly arranged on the outside of the rear plate (13) to drive the screw rod (22) to rotate. The screw rod nut (23) is sleeved on the outer ring of the screw rod (22). When the screw rod (22) rotates, it drives the screw rod nut (23) to move forward and backward.

6. The adaptive electrode clamping device capable of stable clamping according to claim 1, characterized in that: The clamping block (33) comprises a clamping body (331), two No. 1 springs (332), a plurality of clamping pins (333), a plurality of holes (334), a plurality of No. 2 springs (335) and a plurality of check blocks (336). The clamping body (331) is also provided with an air inlet and an air outlet. The air inlet and the air outlet connect the plurality of holes (334) together. The two No. 1 springs (332) are both hollow springs, one end of which is fixedly connected to the back of the clamping body (331) and the other end of which is fixedly connected to the back of the clamping body (331). One end is fixedly connected to the clamping plate (32), the No. 1 spring (332) is located in a groove of the clamping plate (32), one end of one of the No. 1 springs (332) of the clamping block (33) is communicated with the air inlet of the clamping plate (32), and the other end is communicated with the air inlet of the clamping body (331), and another No. 1 spring (332) of the same clamping block (33) is communicated with the air outlet of the clamping plate (32), and the other end is communicated with the air outlet of the clamping body (331).

7. The adaptive electrode clamping device capable of stable clamping according to claim 6, characterized in that: The holes (334) are all arranged on the surface of the clamp body (331), and the No. 2 spring (335) is located in the hole (334). One end of the No. 2 spring (335) is fixedly connected to the clamp body (331), and the other end is fixedly connected to one end of the clamp needle (333). The No. 2 spring (335) and the clamp needle (333) can both slide back and forth along the hole (334).

8. The adaptive electrode clamping device capable of stable clamping according to claim 7, characterized in that: The check block (336) is fixedly arranged in the hole groove (334), and the check block (336) includes a support leg (3361) and a check body (3362). The support leg (3361) is fixedly connected to the clamp body (331), and the check body (3362) is fixedly connected to the support leg (3361). When the check body (3362) is pressed, it can rotate around the support leg (3361). A plurality of check grooves (3331) are provided on the surface of the clamping needle (333). When the check body (3362) extends into the check groove (3331), the check block (336) abuts against the clamping needle (333), and the clamping needle (333) cannot move toward the hole groove (334).

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