Friction welding equipment

Abstract

The invention discloses friction welding equipment in the technical field of friction welding, and aims to improve the welding efficiency and ensure the welding quality. The equipment comprises a working rack, a first clamping and fixing mechanism, a second clamping and fixing mechanism, a control mechanism and a cooling mechanism, the first clamping and fixing mechanism can be adjusted to adapt to drill bits with different diameters, simultaneous welding of the two ends is achieved, and efficiency is improved; the axial force of the second clamping and fixing mechanism is accurately controlled through a motor and an elastic piece, and the welding quality is guaranteed; the control mechanism is used for controlling the distance between the two second clamping and fixing mechanisms and the first clamping and fixing mechanism. The cooling mechanism effectively reduces the temperature of a welding area, reduces heat affected zones, and enhances the strength and toughness of a welding joint. According to the scheme, the equipment can weld the two ends of a drill bit at the same time, can adapt to drill bits or cylindrical parts with different diameters and can accurately control axial force applied to workpieces in the welding process, and welding deformation can be reduced through an integrated cooling mechanism.

Description

Technical Field

[0001] The invention relates to the technical field of friction welding, in particular to a friction welding device. Background Art

[0002] Friction welding is a solid-state welding technology that connects materials through the heat generated by mechanical friction. It has been widely used in industrial production due to its advantages such as high welding quality, fast welding speed and environmental friendliness.

[0003] However, existing friction welding equipment has some shortcomings. First, traditional equipment can only weld one end of the drill bit, and cannot weld both ends at the same time, which limits the welding efficiency; second, the existing equipment is inconvenient to adjust and lacks flexibility when fixing drill bits or cylindrical parts of different diameters; in addition, in order to ensure the quality of welding, it is necessary to apply axial force while rotating, and existing equipment often fails to provide an effective axial force control mechanism; finally, in order to avoid welding deformation and control the temperature of the welding area, cooling is required during the welding process, but the cooling measures in the existing technology are often not effective enough to fully reduce the length of the heat-affected zone, thereby affecting the strength and toughness of the welded joint.

[0004] In view of the above problems, this application document provides a friction welding device. Summary of the invention

[0005] The purpose of the present invention is to solve the problems raised in the above background technology, and the present invention provides a friction welding device.

[0006] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0007] A friction welding device comprises a workbench, a first clamping and fixing mechanism, a second clamping and fixing mechanism, a control mechanism and a cooling mechanism, wherein:

[0008] The first clamping and fixing mechanism is installed on the workbench, and the first clamping and fixing mechanism includes two symmetrically arranged clamping blocks 1 and an adjusting member for controlling the two clamping blocks 1 to move toward or away from each other;

[0009] The number of the second clamping and fixing mechanisms is two and they are symmetrically arranged on two sides opposite to each other of the first clamping and fixing mechanism, the second clamping and fixing mechanism comprises a mounting plate slidably arranged on the workbench, a motor with an output shaft facing the first clamping and fixing mechanism is fixed on the mounting plate, an elastic member is arranged at the output end of the motor, the other end of the elastic member is mounted on a mounting box, and a clamping member is installed on the side of the mounting box facing away from the elastic member;

[0010] The control mechanism is installed on the workbench and is used to control the two mounting plates to move toward or away from each other;

[0011] The number of the cooling mechanisms is two and they are respectively mounted on the two mounting plates. The cooling mechanisms are used to cool the temperature during the friction welding process.

[0012] Furthermore, the top of the workbench is constructed with two symmetrically arranged slide grooves, and the two clamping blocks are respectively slidably installed inside the two slide grooves, and the adjusting member includes a bidirectional screw rod rotatably installed at the bottom of the workbench and arranged along the length direction of the slide groove, and the two clamping blocks are respectively threadedly sleeved on the positive thread and the negative thread of the bidirectional screw rod, and a turning handle is fixed to one end of the bidirectional screw rod.

[0013] Furthermore, the clamping surface of the clamping block 1 is structured in a "V" shape.

[0014] Furthermore, the elastic member includes a mounting sleeve fixed on the output end of the motor, a mounting sleeve rod is movably inserted into the end of the mounting sleeve, the middle part of one end of the mounting box is fixed to one end of the mounting sleeve rod, a connecting plate is fixedly sleeved on the outer side of the mounting sleeve, and a spring is connected between the connecting plate and the mounting box.

[0015] Furthermore, the clamping member includes a plurality of clamping plates distributed in a rotating array at one end of the installation box, the clamping plate slides at one end of the installation box and the sliding direction is perpendicular to the central axis of the installation box, a control rod is movably installed in the middle of one end of the installation box, and at least one hinged rod is hinged between the clamping plate and the control rod. The installation box is also provided with a control part for controlling the movement of the control rod to realize that the plurality of clamping plates are close to or away from each other.

[0016] Furthermore, the control part includes a threaded rod rotatably installed in the middle of one end of the installation box, the control rod is threadedly sleeved on the threaded rod, the other end of the threaded rod movably penetrates into the interior of the installation box, a worm screwed on the inner wall of the installation box is fixed to the end of the threaded rod, a worm wheel meshing with the worm screwed is rotatably installed inside the installation box, and one end of the worm wheel shaft movably penetrates into the outside of the installation box and is fixed with a knob.

[0017] Furthermore, the workbench is constructed with two symmetrically arranged slide grooves 2, and the two mounting plates slide inside the two slide grooves 2 respectively. The control mechanism includes a two-way screw rod 2 rotatably installed at the bottom of the workbench and arranged along the length direction of the two slide grooves 2. The two mounting plates are respectively threadedly mounted on the positive thread and the negative thread of the two-way screw rod 2, and a turning handle 2 is fixed at one end of the two-way screw rod 2.

[0018] Furthermore, the cooling mechanism includes an air intake pipe installed on the mounting plate, the bottom end of the air intake pipe penetrates through the bottom of the workbench and the top end of the air intake pipe is in a closed state, a rotating rod is movably inserted into the top end of the air intake pipe, the bottom end of the rotating rod movably penetrates through the interior of the air intake pipe and is fixed with a fan blade, a bevel gear 1 is fixedly sleeved on the output shaft of the motor, a device rod is rotatably mounted on the mounting plate, a bevel gear 2 that meshes with the bevel gear 1 is fixedly sleeved on the device rod, a linkage wheel is fixedly sleeved on the device rod and the two linkage wheels are sleeved with an integrated linkage belt, the air intake pipe is connected with a universal hose, and one end of the universal hose that is connected to the air intake pipe is located between the fan blade and the closed end of the air intake pipe.

[0019] Furthermore, a support frame is fixed on the top of the mounting plate, a top ball of the support frame is connected to a ball bearing, and the ball bearing rolls on the outer peripheral side of the mounting box.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The equipment in this solution can weld both ends of the drill bit at the same time, which significantly improves the welding efficiency and reduces the time required for single-piece welding.

[0022] 2. The device of the present invention can adapt to drill bits or cylindrical components of different diameters through an adjustable clamping and fixing mechanism, thereby improving the applicability and flexibility of the device.

[0023] 3. The device of the present invention can accurately control the axial force applied to the workpiece during welding through the combination of the motor and the elastic member, thereby ensuring the welding quality.

[0024] 4. The cooling mechanism integrated in the present invention can cool the welding area during the welding process, which helps to control the temperature of the welding area, reduce the length of the heat-affected zone, and improve the strength and toughness of the welded joint. By effectively cooling during the welding process, welding deformation is reduced, which is crucial to maintaining the dimensional accuracy and shape of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0026] Figure 2 For the present invention Figure 1 A three-dimensional cross-sectional view of

[0027] Figure 3 For the present invention Figure 1 A three-dimensional cross-sectional view from another direction;

[0028] Figure 4 For the present invention Figure 3 A magnified view of the structure in center A;

[0029] Figure 5 It is a schematic diagram of the three-dimensional structure of the first clamping and fixing mechanism in the present invention;

[0030] Figure 6 For the present invention Figure 1 Schematic diagram of the three-dimensional structure of the middle part;

[0031] Figure 7 For the present invention Figure 6 Schematic diagram of the three-dimensional structure of the middle part;

[0032] Figure 8 For the present invention Figure 7 A three-dimensional cross-sectional view of

[0033] Fig. 9 For the present invention Figure 7 Schematic diagram of the three-dimensional structure of the middle part.

[0034] In the figure: 1, workbench; 11, slideway 1; 12, slideway 2; 2, first clamping and fixing mechanism; 21, clamping block 1; 22, adjusting member; 221, two-way screw rod 1; 222, turning handle 1; 3, second clamping and fixing mechanism; 31, mounting plate; 311, support frame; 312, ball bearing; 32, motor; 33, elastic member; 331, mounting sleeve; 332, mounting sleeve rod; 333, connecting plate; 334, spring; 34, mounting box; 35, clamping member; 351. Clamping plate; 352. Control rod; 353. Articulated rod; 354. Control unit; 3541. Threaded rod; 3542. Worm; 3543. Worm wheel; 3544. Knob; 4. Control mechanism; 41. Two-way screw rod; 42. Two-handle knob; 5. Cooling mechanism; 51. Air intake pipe; 52. Rotating rod; 53. Fan blade; 54. Bevel gear one; 55. Installation rod; 56. Bevel gear two; 57. Interlocking wheel; 58. Interlocking belt; 59. Universal hose. DETAILED DESCRIPTION

[0035] To make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0036] The friction welding device provided in this embodiment is mainly used to solve the shortcomings of existing friction welding devices. First, the traditional equipment can only weld one end of the drill bit and cannot achieve welding of both ends at the same time, which limits the welding efficiency; second, the existing equipment is inconvenient to adjust and lacks flexibility when fixing drill bits or cylindrical parts of different diameters; in addition, in order to ensure the welding quality, it is necessary to apply axial force while rotating, but the existing equipment often fails to provide an effective axial force control mechanism; finally, in order to avoid welding deformation and control the temperature of the welding area, it is necessary to cool the welding process, but the cooling measures in the prior art are often not effective enough to fully reduce the length of the heat-affected zone, thereby affecting the strength and toughness of the welded joint, and the following technical solutions are provided, which will be combined with Figure 1-Figure 9 Make a detailed description:

[0037] Embodiment 1:

[0038] This embodiment describes an innovative friction welding device, which can significantly improve welding efficiency and quality through its unique design, including a workbench 1, a first clamping and fixing mechanism 2, a second clamping and fixing mechanism 3, a control mechanism 4 and a cooling mechanism 5, wherein:

[0039] The first clamping and fixing mechanism 2 is installed on the workbench 1. The first clamping and fixing mechanism 2 includes two symmetrically arranged clamping blocks 21 and an adjusting member 22 for controlling the two clamping blocks 21 to move toward or away from each other, so as to adapt to drill bits of different diameters and realize simultaneous welding of both ends, which not only improves the welding efficiency, but also ensures the flexibility and adaptability of the welding process;

[0040] There are two second clamping and fixing mechanisms 3, which are symmetrically arranged on two opposite sides of the first clamping and fixing mechanism 2. The second clamping and fixing mechanism 3 includes a mounting plate 31 slidably arranged on the workbench 1, a motor 32 whose output shaft faces the first clamping and fixing mechanism 2 is fixed on the mounting plate 31, an elastic member 33 is arranged at the output end of the motor 32, the other end of the elastic member 33 is installed with a mounting box 34, and a clamping member 35 is installed on the side of the mounting box 34 facing away from the elastic member 33. This design enables the clamping member 35 to apply precise axial force to the workpiece through the elastic member 33, which is very important for ensuring welding quality;

[0041] The control mechanism 4 is mounted on the workbench 1 and is used to control the two mounting plates 31 to move toward or away from each other, ensuring accurate alignment and pressure control during the welding process;

[0042] There are two cooling mechanisms 5, which are respectively mounted on two mounting plates 31. The cooling mechanisms 5 are used to cool the temperature during the friction welding process. This cooling mechanism effectively reduces the temperature of the welding area and reduces the length of the heat-affected zone, thereby improving the strength and toughness of the welded joint, and also reduces thermal deformation during the welding process.

[0043] Through this design, the friction welding equipment of this embodiment not only improves the welding efficiency, but also ensures the welding quality through precise axial force control and effective cooling mechanism. In addition, the adjustable clamping and fixing mechanism of the equipment enables the equipment to adapt to workpieces of different sizes, increasing the applicability and flexibility of the equipment. In general, the design of this friction welding equipment, through its innovative structure and operation mode, provides users with an efficient, precise and reliable welding solution with significant economic and social benefits.

[0044] In this example, see Figure 2 , Figure 3 and Figure 5 The top of the workbench 1 is constructed with two symmetrically arranged slide grooves 11, and two clamping blocks 21 are respectively slidably installed inside the two slide grooves 11, thereby ensuring the stability during welding and improving the adaptability and flexibility of the equipment. The adjusting member 22 includes a bidirectional screw rod 221 rotatably installed at the bottom of the workbench 1 and arranged along the length direction of the slide groove 11. The two clamping blocks 21 are respectively threadedly sleeved on the positive thread and the negative thread of the bidirectional screw rod 221. A turning handle 222 is fixed at one end of the bidirectional screw rod 221. By rotating the turning handle 222, the bidirectional screw rod 221 is driven to rotate, so that the two clamping blocks 21 move toward or away from each other, thereby clamping or releasing the workpiece.

[0045] Specifically, the clamping surface of the clamping block 21 is constructed in a "V" shape. This design helps to better clamp the round drill bit and prevent the drill bit from sliding or shifting during welding. This "V"-shaped clamping surface not only improves the clamping stability, but also reduces the errors that may occur during welding, thereby improving the accuracy and quality of welding.

[0046] For further information, see Figure 3 , Figure 4 and Figure 7The elastic member 33 includes a mounting sleeve 331 fixed on the output end of the motor 32, and a mounting sleeve rod 332 is movably inserted at the end of the mounting sleeve 331. This movable insertion method allows the mounting sleeve rod 332 to move flexibly in the mounting sleeve 331 to adapt to different welding requirements. The middle part of one end of the mounting box 34 is fixed to one end of the mounting sleeve rod 332, and a connecting plate 333 is fixedly sleeved on the outer side of the mounting sleeve 331. A spring 334 is connected between the connecting plate 333 and the mounting box 34. This design enables the elastic member 33 to provide continuous axial force during welding, while allowing a certain displacement to adapt to slight changes in the welding process. The addition of the spring 334 provides the system with the necessary elasticity, which not only helps to absorb the impact and vibration during welding, but also ensures the uniform distribution of axial force, thereby improving the quality and consistency of the welded joint.

[0047] In this embodiment, the clamping member 35 is exquisitely designed and highly functional. It achieves stable clamping of the workpiece through a series of carefully arranged components. For details, please refer to Figure 4 , Figure 6 , Figure 7 and Fig. 9 The clamping member 35 includes a plurality of clamping plates 351 distributed in a rotating array at one end of the mounting box 34. This layout enables the clamping member 35 to uniformly clamp a circular or cylindrical workpiece, ensuring stability and uniformity during welding. The clamping plate 351 slides at one end of the mounting box 34 and the sliding direction is perpendicular to the central axis of the mounting box 34. This design allows the clamping plate 351 to be fine-tuned as needed during welding to adapt to workpieces of different sizes, thereby improving the adaptability and flexibility of the equipment.

[0048] In order to achieve effective control of the clamping plate 351, a control rod 352 is movably installed in the middle of one end of the installation box 34, and at least one hinged rod 353 is hinged between the clamping plate 351 and the control rod 352. The installation box 34 is also provided with a control part 354 for controlling the movement of the control rod 352 to achieve a plurality of clamping plates 351 approaching or moving away from each other. The design of the control part 354 allows the operator to control the movement of the control rod 352 through simple operation, thereby controlling the clamping plates 351 to approach or move away from each other. This control method not only improves the convenience of operation, but also ensures the precise control of the clamping force, which is crucial to ensuring the welding quality.

[0049] For further information, please refer to Figure 4 , Figure 6 , Figure 7 and Fig. 9The control part 354 includes a threaded rod 3541 rotatably mounted at the middle of one end of the installation box 34, and the control rod 352 is threadedly sleeved on the threaded rod 3541. The control rod 352 can move along the length direction of the threaded rod 3541, thereby realizing precise control of the clamping plate 351;

[0050] The other end of the threaded rod 3541 is movable and extends into the interior of the mounting box 34. A worm 3542 that rotates on the inner wall of the mounting box 34 is fixed to the end of the threaded rod 3541. A worm wheel 3543 that meshes with the worm 3542 is rotatably installed inside the mounting box 34. One end of the rotating shaft of the worm wheel 3543 is movable and extends to the outside of the mounting box 34 and is fixed with a knob 3544. This method allows the operator to control the rotation of the worm wheel 3543 by rotating the knob 3544, thereby precisely controlling the movement of the threaded rod 3541 and achieving precise adjustment of the control rod 352 and its associated clamping plate 351.

[0051] In this example, see Figure 3 river Figure 6 The workbench 1 is constructed with two symmetrically arranged slide grooves 12, and the two mounting plates 31 slide inside the two slide grooves 12 respectively. The control mechanism 4 includes a bidirectional screw rod 41 rotatably installed at the bottom of the workbench 1 and arranged along the length direction of the slide groove 12. The two mounting plates 31 are respectively threadedly sleeved on the positive thread and the negative thread of the bidirectional screw rod 41. A turning handle 42 is fixed at one end of the bidirectional screw rod 41. The operator drives the bidirectional screw rod 41 to rotate by turning the turning handle 42, so that the two mounting plates 31 move toward or away from each other, thereby realizing the adjustment of the distance between the second clamping and fixing mechanism 3 and the first clamping and fixing mechanism 2.

[0052] In this embodiment, the design of the cooling mechanism 5 reflects the emphasis on temperature control during the welding process, which is very important for preventing welding deformation and improving welding quality. Figure 6 , Figure 7 and Figure 8 The cooling mechanism 5 includes an air inlet pipe 51 mounted on the mounting plate 31. The bottom end of the air inlet pipe 51 penetrates the bottom of the workbench 1 and the top end of the air inlet pipe 51 is in a closed state. A rotating rod 52 is movably inserted at the top end of the air inlet pipe 51. The bottom end of the rotating rod 52 movably penetrates the inside of the air inlet pipe 51 and is fixed with a fan blade 53. This movable insertion method allows the rotating rod 52 to rotate freely inside the air inlet pipe 51, thereby driving the fan blade 53 to generate airflow;

[0053] In order to convert this mechanical motion into airflow, a bevel gear 1 54 is fixedly sleeved on the output shaft of the motor 32, a device rod 55 is rotatably mounted on the mounting plate 31, and a bevel gear 2 56 meshing with the bevel gear 1 54 is fixedly sleeved on the device rod 55. This meshing mechanism ensures that the rotational motion of the motor 32 can be effectively transmitted to the device rod 55, thereby driving the rotating rod 52 and the fan blades 53;

[0054] In order to ensure the continuity and stability of this motion transmission, a linkage wheel 57 is fixedly mounted on the device rod 55 and the rotating rod 52, and an integrated linkage belt 58 is mounted between the two linkage wheels 57. This design makes the motion transmission between the device rod 55 and the rotating rod 52 smoother, reduces the motion loss caused by friction or gap, and improves the efficiency of the cooling mechanism 5. The air inlet pipe 51 is connected to a universal hose 59, and the end of the universal hose 59 connected to the air inlet pipe 51 is located between the fan blade 53 and the closed end of the air inlet pipe 51. This layout allows the cold air to be evenly distributed in the welding area, thereby more effectively controlling the temperature during the welding process.

[0055] Embodiment 2:

[0056] See also Figure 4 and Figure 7 , Embodiment 2 is a further optimization of Embodiment 1. A support frame 311 is fixed on the top of the mounting plate 31. This newly added component is intended to provide additional support and stability for the entire welding device, ensuring that the device can remain firm and reliable during the welding process, especially when the axial force is applied. The top ball of the support frame 311 is connected with a ball 312, and the ball 312 rolls on the outer peripheral side of the mounting box 34. This rolling mechanism provides a flexible contact method, so that the mounting plate 31 can be fine-tuned as needed during the welding process to adapt to workpieces of different sizes or compensate for minor changes that may occur during the welding process due to thermal expansion;

[0057] The rolling contact between the ball 312 and the mounting box 34 reduces friction, thereby reducing wear and extending the service life of the equipment. At the same time, this design also makes the equipment smoother and more precise during operation, improves welding accuracy and efficiency. Through this optimization, the equipment can not only withstand greater loads, but also maintain its performance under different working conditions, thereby improving the adaptability and reliability of the equipment.

[0058] When operating this device:

[0059] When using the friction welding equipment for welding, the operator first needs to place the drill bit or columnar component to be welded on the workbench 1, which is designed with a symmetrical slide groove 11 for installing the first clamping and fixing mechanism 2. The operator drives the bidirectional screw rod 221 by turning the turning handle 222, so that the clamp block 21 moves toward or away from the slide groove 11 to accurately clamp the workpiece. The "V"-shaped clamping surface design of the clamp block 21 ensures the stable clamping of the round drill bit during the welding process to prevent it from sliding or deflecting.

[0060] Next, clamping the other two workpieces to be welded, the operator adjusts through the control part 354, the control part 354 includes a threaded rod 3541 and a worm 3542, the operator rotates the knob 3544, and the threaded rod 3541 is precisely controlled by the rotation of the worm gear 3543, thereby realizing precise adjustment of the control rod 352 and its associated clamping plate 351 to adapt to workpieces of different sizes;

[0061] Then, the operator starts the motor 32, which is fixed on the mounting plate 31 of the second clamping and fixing mechanism 3. The output end of the motor 32 is connected to the mounting box 34 through the elastic member 33, and then drives the clamping member 35 to apply an axial force to the workpiece at the other end. The application of this axial force is achieved by the elastic characteristics of the elastic member 33, which ensures the welding quality. At the same time, the spring 334 absorbs the impact and vibration during the welding process, ensuring the uniform distribution of force.

[0062] During the welding process, the cooling mechanism 5 starts to work, and the air inlet pipe 51 delivers cooling air to the welding area, wherein the rotating rod 52 and the fan blades 53 generate airflow under the drive of the motor 32. The cooling air evenly distributed through the universal hose 59 helps to control the temperature of the welding area, reduce the heat-affected zone, and improve the strength and toughness of the welded joint.

[0063] It should be noted that the specific model and specifications of the motor 32 need to be selected and determined based on the actual specifications of the device, and the specific selection calculation method adopts the existing technology in the field, so it will not be described in detail. The principles of these components are clear to those skilled in the art and do not need to be described in detail here.

[0064] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A friction welding device, comprising a workbench (1), a first clamping and fixing mechanism (2), a second clamping and fixing mechanism (3), a control mechanism (4) and a cooling mechanism (5), characterized in that: in: The first clamping and fixing mechanism (2) is installed on the workbench (1), and the first clamping and fixing mechanism (2) comprises two symmetrically arranged clamping blocks (21) and an adjusting member (22) for controlling the two clamping blocks (21) to move toward or away from each other; The number of the second clamping and fixing mechanisms (3) is two and they are symmetrically arranged on two opposite sides of the first clamping and fixing mechanism (2), the second clamping and fixing mechanism (3) comprises a mounting plate (31) slidably arranged on the workbench (1), a motor (32) whose output shaft faces the first clamping and fixing mechanism (2) is fixed on the mounting plate (31), an elastic member (33) is arranged at the output end of the motor (32), the other end of the elastic member (33) is mounted on a mounting box (34), and a clamping member (35) is installed on the side of the mounting box (34) facing away from the elastic member (33); The control mechanism (4) is installed on the workbench (1) and is used to control the two mounting plates (31) to move towards or away from each other; The number of the cooling mechanisms (5) is two and they are respectively mounted on the two mounting plates (31); the cooling mechanisms (5) are used to cool the temperature during the friction welding process.

2. A friction welding device according to claim 1, characterized in that: The top of the workbench (1) is structured with two symmetrically arranged slide grooves (11), and the two clamping blocks (21) are respectively slidably installed inside the two slide grooves (11). The adjusting member (22) comprises a bidirectional screw rod (221) rotatably installed at the bottom of the workbench (1) and arranged along the length direction of the slide groove (11). The two clamping blocks (21) are respectively threadedly sleeved on the positive thread and the negative thread of the bidirectional screw rod (221), and a turning handle (222) is fixed to one end of the bidirectional screw rod (221).

3. A friction welding device according to claim 1, characterized in that: The clamping surface of the clamping block 1 (21) is structured in a "V" shape.

4. A friction welding device according to claim 1, characterized in that: The elastic member (33) comprises a mounting sleeve (331) fixed on the output end of the motor (32); a mounting sleeve rod (332) is movably inserted at the end of the mounting sleeve (331); a middle portion of one end of the mounting box (34) is fixed to one end of the mounting sleeve rod (332); a connecting plate (333) is fixedly sleeved on the outer side of the mounting sleeve (331); and a spring (334) is connected between the connecting plate (333) and the mounting box (34).

5. A friction welding device according to claim 4, characterized in that: The clamping member (35) comprises a plurality of clamping plates (351) distributed in a rotating array at one end of the installation box (34); the clamping plates (351) slide at one end of the installation box (34) and the sliding direction is perpendicular to the central axis of the installation box (34); a control rod (352) is movably installed in the middle of one end of the installation box (34); at least one hinge rod (353) is hinged between the clamping plate (351) and the control rod (352); and a control part (354) for controlling the movement of the control rod (352) to achieve the plurality of clamping plates (351) approaching or moving away from each other is also provided on the installation box (34).

6. A friction welding device according to claim 5, characterized in that: The control portion (354) comprises a threaded rod (3541) rotatably mounted at the middle of one end of the installation box (34); the control rod (352) is threadedly sleeved on the threaded rod (3541); the other end of the threaded rod (3541) is movably penetrated into the interior of the installation box (34); a worm (3542) rotatably mounted on the inner wall of the installation box (34) is fixed at the end of the threaded rod (3541); a worm wheel (3543) meshing with the worm wheel (3542) is rotatably mounted inside the installation box (34); one end of the rotating shaft of the worm wheel (3543) is movably penetrated into the exterior of the installation box (34) and is fixed with a knob (3544).

7. The friction welding device according to claim 1, characterized in that: The workbench (1) is constructed with two symmetrically arranged slide grooves (12), and the two mounting plates (31) slide inside the two slide grooves (12) respectively. The control mechanism (4) comprises a bidirectional screw rod (41) rotatably mounted on the bottom of the workbench (1) and arranged along the length direction of the slide grooves (12). The two mounting plates (31) are respectively threadedly sleeved on the positive thread and the negative thread of the bidirectional screw rod (41), and one end of the bidirectional screw rod (41) is fixed with a turning handle (42).

8. The friction welding device according to claim 1, characterized in that: The cooling mechanism (5) comprises an air intake pipe (51) mounted on the mounting plate (31), the bottom end of the air intake pipe (51) penetrates the bottom of the workbench (1) and the top end of the air intake pipe (51) is in a closed state, a rotating rod (52) is movably inserted into the top end of the air intake pipe (51), the bottom end of the rotating rod (52) movably penetrates the inside of the air intake pipe (51) and is fixed with a fan blade (53), a bevel gear (54) is fixedly sleeved on the output shaft of the motor (32), and a rotating gear (54) is rotatably mounted on the mounting plate (31). A device rod (55) is provided, and a bevel gear 2 (56) meshing with the bevel gear 1 (54) is fixedly sleeved on the device rod (55). A linkage wheel (57) is fixedly sleeved on both the device rod (55) and the rotating rod (52). An integral linkage belt (58) is sleeved between the two linkage wheels (57). A universal hose (59) is connected to the air intake pipe (51), and one end of the universal hose (59) connected to the air intake pipe (51) is located between the fan blade (53) and one end of the air intake pipe (51) that is closed.

9. The friction welding device according to claim 1, characterized in that: A support frame (311) is fixed on the top of the mounting plate (31), and a ball (312) is connected to the top of the support frame (311), and the ball (312) rolls on the outer peripheral side of the mounting box (34).

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