Friction welding machine and friction welding disc with detection function

Abstract

The present application discloses a friction welding machine and friction pad with a detection function. The friction welding machine with a detection function includes a base, a detection component, a welding component, and a clamping component. The detection component is arranged on the base and can be raised and lowered in the Z direction perpendicular to the welding plate. The detection component is provided with a tension component for applying a target tension to the Nth friction pad. The welding component is arranged on the base and located on one side of the detection component. The welding component includes a clamping component, a rotating component, and a pressure component. The clamping component is used to clamp the N+1th friction pad and can be raised and lowered in the Z direction perpendicular to the welding plate. The rotating component is connected to the clamping component and is used to drive the clamping component to rotate. The pressure component is connected to the clamping component and is used to apply pressure to the clamping component. The clamping component is arranged on the base and is located on the other side of the detection component and is used to clamp the welding plate. This allows the tensile strength of the friction pad to be tested while the friction pad is being welded.

Description

Technical Field

[0001] This application relates to the technical field of friction welding, and particularly to a friction welding machine and a friction welding pad with a detection function. Background Art

[0002] Currently, in friction welding technology, friction welding pads are usually used to weld two plate-like components together. After welding, it is necessary to detect whether the tensile strength of the friction welding pad meets the actual use requirements.

[0003] First, in the prior art, the welding process and the tensile strength detection of the friction welding pad need to be carried out separately, resulting in low efficiency. Second, in the prior art, when detecting the tensile strength of the friction welding pad, not all friction welding pads are subjected to tensile strength detection, but only some friction welding pads are sampled for tensile strength detection. This detection method makes the detection results incomplete. In addition, in the prior art, when detecting the tensile strength of the friction welding pad, the tensile strength of the friction welding pad is usually characterized by some indirect indicators. For example, when the friction welding pad is twisted, the torsional strength is used to characterize the tensile strength. The detection method of characterizing the tensile strength of the friction welding pad by the above indirect indicators easily leads to inaccurate detection results. Summary of the Invention

[0004] The purpose of this application is to provide a friction welding machine and a friction welding pad with a detection function, which can detect the tensile strength of the friction welding pad while welding the friction welding pad.

[0005] The embodiments of this application are implemented as follows:

[0006] In a first aspect, this application provides a friction welding machine with a detection function. The friction welding machine with a detection function includes a base body, a detection component, a welding component, and a pressing component. Among them, the base body can move along the X direction; the detection component is arranged on the base body and can lift along the Z direction perpendicular to the welded plate. A tensile force component matching the tensile structure on the Nth friction welding pad is arranged on the detection component. The tensile force component is used to apply a target tensile force F to the Nth friction welding pad, where F1 < F < F2, F1 is the normal operating tensile force of the Nth friction welding pad, and F2 is the ultimate failure tensile force of the Nth friction welding pad. The welding component is arranged on the base body and on one side of the detection component. The welding component includes a clamping component, a rotating component, and a pressing component. The clamping component is used to clamp the (N + 1)th friction welding pad, and the clamping component can lift along the Z direction perpendicular to the welded plate. The rotating component is connected to the clamping component and is used to drive the clamping component to rotate. The pressing component is connected to the clamping component and is used to apply pressure to the clamping component. The pressing component is arranged on the base body and on the other side of the detection component and is used to press the welded plate.

[0007] In one embodiment, the distance between the detection component and the welding component is L1, and the distance between the detection component and the clamping component is L2; ​​the target component is slidably provided on the base to change L1 and / or L2; wherein the target component is at least one component among the detection component, the welding component and the clamping component; the friction welding machine with detection function also includes a locking component for locking the target component.

[0008] In one embodiment, a guide groove is provided on the base, and the target component slides in the guide groove.

[0009] In one embodiment, the clamping member includes a first clamping member and multiple second clamping members. One end of the first clamping member is connected to the rotating member, and the other end is detachably connected to any second clamping member. Each second clamping member is used to clamp a friction pad of a corresponding model.

[0010] In one embodiment, the pressing assembly can be lifted and lowered along a Z direction perpendicular to the welding plate, or the pressing assembly is a roller structure.

[0011] In a second aspect, the present application provides a friction welding disc having a welding section and a clamping section connected to the welding section, wherein the diameter of the welding section gradually decreases in a direction away from the clamping section, and a tensile structure is provided inside or outside the clamping section; the tensile structure is used to match the tensile component in the above-mentioned friction welding machine with detection function.

[0012] In one embodiment, the tensile structure is an internal thread or external thread structure; or, the tensile structure is a flange structure; or, the tensile structure is a groove structure.

[0013] In one embodiment, the clamping section is connected to the welding section via a shoulder pressing ring, and the diameter of the shoulder pressing ring is larger than the maximum diameter of the welding section.

[0014] In one embodiment, a slag discharge channel is provided inside the friction welding disc and runs through the friction welding disc in the axial direction. The slag discharge channel has a fixed diameter, or the diameter of the slag discharge channel gradually decreases from the clamping section to the welding section.

[0015] In one embodiment, the end surface of the welding section is an inner concave surface, or the end surface of the welding section is an outer convex surface.

[0016] The beneficial effects of this application compared with the prior art are:

[0017] In the present application, when welding the current friction pad, the previous already welded friction pad is used as an anchor point, so that the detection component is anchored at the anchor point while applying a tensile force to the previous friction pad for tensile testing. It can be seen from this that in the present application, it is possible to perform a tensile test on the previous friction pad while welding the current friction pad, so that the tensile strength of the friction pad can be tested without wasting additional time and resources, and the test can be performed while welding, which is highly efficient. Furthermore, in the present application, there is no need to spend any cost to perform a tensile strength test on the friction pad. Furthermore, in the present application, all friction pads can be tested for strength, and the test results are more comprehensive. Furthermore, in the present application, when performing a tensile test, the tensile strength of the friction pad is not characterized by an indirect indicator, but directly by applying a tensile force to the friction pad, and the tensile strength of the friction pad is characterized based on the friction pad's ability to withstand the tensile force. This method can improve the accuracy of the test results and reduce the possibility of distortion in the test results.

[0018] In addition, when the welding assembly is welding the friction pad, the pressure component will apply downward pressure to the friction pad. Under the action of the action force and the reaction force, the friction pad will apply an upward force F to the pressure component. H Under the action of the above force, the welding assembly is easy to move upward; at this time, by setting the clamping assembly and the detection assembly, the friction welding plate applies an upward force F to the pressure component. H , the downward force F exerted by the friction pad on the detection component G and the upward force F exerted by the welded plate on the clamping assembly J , it is possible to achieve balance, so that the entire friction welding machine with detection function can be prevented from moving, and it acts as a reaction frame. It can be seen from this that the friction welding machine with detection function in this application can be used for welding friction pads, can also be used for tensile strength testing of friction pads, and can also serve as a reaction frame to prevent the friction welding machine with detection function from moving, which is a typical ingenious multifunctional structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without any creative work.

[0020] Figure 1 The structure of the friction pad shown in this application is shown in FIG. Figure 1 ;

[0021] Figure 2 A schematic structural diagram of the target flow channel shown in this application;

[0022] Figure 3 This is a schematic diagram of the structure of the friction welding machine with detection function shown in this application Figure 1 ;

[0023] Figure 4 This is a schematic diagram of the structure of the friction welding machine with detection function shown in this application Figure 2 ;

[0024] Figure 5 The structure of the friction pad shown in this application is shown in FIG. Figure 2 ;

[0025] Figure 6 This is a schematic structural diagram of the second clamping member shown in this application;

[0026] Figure 7 The structure of the friction pad shown in this application is shown in FIG. Figure 3 ;

[0027] Figure 8 The structure of the friction pad shown in this application is shown in FIG. Figure 4 ;

[0028] Figure 9 The structure of the friction pad shown in this application is shown in FIG. Figure 5 .

[0029] Reference numerals:

[0030] 10- Friction welding machine with detection function; 11- Base; 12- Welding assembly; 13- Detection assembly; 14- Clamping assembly; 20- Friction welding disc; 21- Clamping section; 22- Welding section; 23- Shoulder ring; 24- Slag discharge channel; 25- Tensile structure; 30- Proximal welding plate; 31- Target flow channel; 40- Distal welding plate; 121- Clamping component; 122- Pressure component; 123- Rotating component; 131- Second guide groove; 141- Third guide groove; 1211- First clamping member; 1212- Second clamping member; 12121- Ball head connecting section; 12122- Middle section; 12123- Matching section. DETAILED DESCRIPTION

[0031] The terms "first", "second", "third", etc. are only used to distinguish and describe, and do not indicate the order of arrangement, nor can they be understood as indicating or implying relative importance.

[0032] Furthermore, terms such as "horizontal," "vertical," and "overhanging" do not necessarily imply that a component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0033] In the description of this application, it should be noted that the terms "inside", "outside", "left", "right", "up", "down", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the product of the application is usually placed when in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on this application.

[0034] In the description of this application, unless otherwise clearly specified and limited, the terms "set", "install", "connected" and "connect" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be a connection between the internal parts of two elements.

[0035] The technical solution of this application will be clearly and completely described below with reference to the accompanying drawings.

[0036] The present application provides a friction welding disc 20, which can be used to weld two welding plates together. Figure 1 As shown, the friction pad 20 in this embodiment comprises a welding section 22 and a clamping section 21 connected thereto. The diameter of the welding section 22 gradually decreases as it moves away from the clamping section 21. Specifically, the welding section 22 may have a conical structure with a gradually decreasing diameter as it moves away from the clamping section 21, or it may have another gradually decreasing diameter structure as it moves away from the clamping section 21. This application describes the structure of the friction pad 20 using a conical welding section 22 as an example. A tensile structure 25 is provided inside or outside the clamping section 21.

[0037] like Figure 2 As shown, the welding plate may include a proximal welding plate 30 and a distal welding plate 40. The proximal welding plate 30 may be provided with a plurality of conical welding holes, which extend along the X direction to form a row of conical welding holes. The side of each conical welding hole and the side of the welding section 22 of the friction welding plate 20 form a target flow channel 31.

[0038] like Figure 3 and Figure 4As shown in the figure, the present application further provides a friction welding machine 10 with a detection function. The friction welding machine 10 with a detection function includes a base body 11, a detection component 13, a welding component 12 and a pressing component 14. Among them, the base body 11 is located above the welded plate, and the base body 11 can move along the X direction. The detection component 13 is arranged on the base body 11 and can lift and lower along the Z direction perpendicular to the welded plate. A tensile component matching the tensile structure 25 on the Nth friction welding pad 20 is arranged on the detection component 13. The tensile component is used to apply a target tensile force F to the Nth friction welding pad 20, where F1 < F < F2. F1 is the normal operating tensile force of the Nth friction welding pad 20, that is, when the welded plate is in use, the magnitude of the tensile force received by the friction welding pad 20. F2 is the ultimate failure tensile force of the Nth friction welding pad 20. The welding component 12 is arranged on the base body 11 and on one side of the detection component 13. The welding component 12 includes a clamping component 121, a rotating component 123 and a pressing component 122. The clamping component 121 is used to clamp the (N + 1)th friction welding pad 20, and the clamping component 121 can lift and lower along the Z direction perpendicular to the welded plate. The rotating component 123 is connected to the clamping component 121 and is used to drive the clamping component 121 to rotate. The pressing component 122 is connected to the clamping component 121 and is used to apply a pressure to the clamping component 121. The pressing component 14 is arranged on the base body 11 and on the other side of the detection component 13 and is used to press the welded plate. Among them, the pressing component 14 can be a roller structure, or the pressing component 14 can lift and lower along the Z direction perpendicular to the welded plate.

[0039] In practice, the welding assembly 12 can be controlled to weld the first friction pad 20 to the proximal welding plate 30 and the distal welding plate 40. The specific welding method is as follows: the clamping component 121 of the welding assembly 12 is used to clamp the clamping section 21 of the first friction pad 20. After the clamping is completed, the clamping component 121 is lowered until the first friction pad 20 is matched with the first welding hole. After the matching is completed, the first friction pad 20 is welded. When performing the welding operation, the initial forging stage and the final forging stage are carried out successively. In the initial forging stage, the first forging stage is used to weld the first friction pad 20 to the first welding hole. During the forging phase, the rotating component 123 drives the clamping component 121 and the first friction pad 20 to rotate, while the pressure component 122 applies pressure to the clamping component 121, causing the welding section 22 of the friction pad 20 to rotate while the end of the welding section 22 away from the clamping section 21 gradually enters the distal welding plate 40. Friction is generated with the portion of the distal welding plate 40 corresponding to the first welding hole, causing the weld to molten. When the weld reaches a specified distance from the distal welding plate 40, the initial forging phase is completed and the final forging phase proceeds. During the final forging phase, the rotating component 123 stops rotating, and the pressure component 122 continues to apply pressure to the clamping component 121, forcing some of the melt into the target flow channel 31, leaving the remaining melt between the first friction pad 20 and the distal welding plate 40. After the final forging stage is completed and the melt cools down after a period of cooling, the first friction pad 20 is bonded to the proximal welding plate 30 and the distal welding plate 40 to complete the welding of the first friction pad 20. At this time, the clamping component 121 is released from the clamping of the first friction pad 20 and the clamping component 121 is raised. After the above process is completed, the base 11 is moved in the X direction to weld the subsequent multiple friction pads 20 to the proximal welding plate 30 and the distal welding plate 40; when the welding assembly 12 welds the N+1th welding assembly 12, the detection assembly 13 can detect whether the quality of the Nth welding assembly 12 welded by the welding assembly 12 is qualified; where N is greater than or equal to 1. The following is a detailed introduction:

[0040] When the clamping assembly 14 is a roller structure, the clamping assembly 14 is pressed on the proximal welding plate 30; when the clamping assembly 14 can be lifted and lowered in the Z direction perpendicular to the welding plate, the clamping assembly 14 is controlled to descend in the Z direction perpendicular to the welding plate, so that the clamping assembly is pressed on the proximal welding plate 30; at the same time, the detection assembly 13 is lowered to the vicinity of the Nth friction welding disk 20. After the descent is completed, the tension component on the detection assembly 13 is matched with the tensile structure 25 on the Nth friction welding disk 20. After successful matching, the tension component applies a target tension to the Nth friction welding disk 20 that is greater than its normal operating tension F1 and less than its ultimate breaking force F2. force F; by applying the above-mentioned target tensile force F, it is detected whether the tensile strength of the Nth friction welding disk 20 meets the requirement, so as to detect whether the welding quality of the welded Nth friction welding disk 20 is qualified; if the Nth friction welding disk 20 does not break when the target tensile force F is applied to the Nth friction welding disk 20, it indicates that the welding quality of the Nth friction welding disk 20 is qualified, otherwise if it breaks, the welding quality of the Nth friction welding disk 20 is unqualified; at the same time, the welding assembly 12 can be used to weld the N+1th friction welding disk 20, and the specific welding process is the same as the process of welding the first friction welding disk 20, which will not be repeated here. After welding is completed, if the clamping assembly 14 is a roller, the detection assembly 13 and the welding assembly 12 are raised upward, and the base 11 is moved in the X direction after the raising is completed. During the movement of the base 11, the roller structure rolls on the proximal welding plate 30. After welding is completed, if the clamping assembly 14 can be raised and lowered in the Z direction perpendicular to the welding plate, the clamping assembly 14, the detection assembly 13, and the welding assembly 12 are controlled to rise upward in the Z direction perpendicular to the welding plate. After the raising is completed, the base 11 is moved in the X direction. After the base 11 moves, the N+1 friction pads 20 are welded in the above manner while the tensile test is performed on the Nth friction pad 20. When the tensile test is performed on the last friction pad 20, the welding assembly 12 can be made to not clamp the friction pad 20 to perform a dry welding operation, thereby completing the tensile test of all friction pads 20 while completing the welding work.

[0041] In the present application, when welding the current friction pad 20, the previously welded friction pad 20 is used as an anchor point, so that the detection assembly 13 is anchored at the anchor point while applying a tensile force to the previous friction pad 20 for tensile testing. Thus, in the present application, it is possible to perform a tensile test on the previous friction pad 20 while welding the current friction pad 20, achieving a high efficiency by not consuming additional time and resources to test the tensile strength of the friction pad 20. Furthermore, in the present application, it is possible to perform tensile strength testing on the friction pad 20 at no cost. Furthermore, in the present application, it is possible to perform tensile strength testing on all friction pads 20, resulting in more comprehensive test results. Furthermore, in the present application, when conducting tensile testing, the tensile strength of the friction pad 20 is not characterized by indirect indicators, but by directly applying tensile force to the friction pad 20, and the tensile strength of the friction pad 20 is characterized based on how the friction pad 20 can withstand the tensile force. This method can improve the accuracy of the test results and reduce the possibility of distortion of the test results.

[0042] In addition, when the welding assembly 12 is welding the friction pad 20, the pressure component 122 will apply downward pressure to the friction pad 20. Under the action of the action force and the reaction force, the friction pad 20 will apply an upward force F to the pressure component 122. H Under the action of the above force, the welding assembly 12 easily moves upward; at this time, by setting the clamping assembly 14 and the detection assembly 13, the friction pad 20 applies an upward force F to the pressure component 122 H , the downward force F exerted by the friction pad 20 on the detection component 13 G and the upward force F exerted by the welded plate on the clamping assembly 14 J , it is possible to achieve balance, so that the entire friction welding machine with a detection function 10 can be prevented from moving, and it acts as a reaction frame. As can be seen from this, the friction welding machine with a detection function 10 in the present application can be used to weld the friction welding disc 20, can also be used to perform tensile strength testing on the friction welding disc 20, and can also serve as a reaction frame to prevent the friction welding machine with a detection function 10 from moving, which is a typical ingenious multifunctional structure.

[0043] In one embodiment, if Figure 4As shown, the base 11 can also move in the Y direction and rotate around an axis perpendicular to the welding plate. When multiple rows of tapered welding holes are formed on the proximal welding plate 30, the friction pads 20 can be welded in the first row of tapered welding holes according to the method in the above embodiment. Then, the base 11 is rotated 90° around the axis perpendicular to the welding plate. After successful rotation, the base 11 is moved in the Y direction so that the welding assembly 12 is aligned with the first tapered welding hole in the second row to weld the friction pad 20. The detection assembly 13 detects the last tapered welding hole in the first row. The friction pads 20 in the holes are tested for tensile strength. After the above testing and welding processes are completed, the base 11 is rotated 90° about an axis perpendicular to the weld plate. After successful rotation, the base 11 is moved in the Y direction to align the welding assembly 12 with the second tapered welding hole in the second row to weld the friction pads 20. The testing assembly 13 performs a tensile strength test on the friction pads 20 in the first tapered welding hole in the second row. After the above testing and welding processes are completed, the base 11 is moved in the X direction to weld the friction pads 20 in the remaining tapered holes. The above process is then repeated to complete the welding of friction pads 20 in multiple rows of tapered welding holes and the tensile strength testing of the friction pads 20 in multiple rows of tapered welding holes.

[0044] In one embodiment, if Figure 1 As shown, the tensile structure 25 is an internally threaded structure. Specifically, a matching hole with an internally threaded structure is formed within the clamping section 21 of the friction pad 20, and the tension component of the detection assembly 13 is provided with an externally threaded structure. When the tension component is lowered in the Z direction perpendicular to the welded plate to a position where the externally threaded structure mates with the matching hole, the tension component can apply the target tensile force F to the friction pad 20. The shape of the matching hole matches that of the tension component. For example, both the matching hole and the tension component can be cylindrical structures.

[0045] In one embodiment, if Figure 5 As shown, the tensile structure 25 is an externally threaded structure, meaning that the outer surface of the clamping section 21 of the friction pad 20 is provided with external threads. A matching hole with an internally threaded structure is formed within the tension component of the detection assembly 13. When the tension component is lowered in the Z direction perpendicular to the welded plate to a position where the externally threaded structure mates with the matching hole, the tension component can apply the target tensile force F to the friction pad 20. The shape of the matching hole matches that of the clamping section 21 of the friction pad 20. For example, the matching hole and the clamping section 21 of the friction pad 20 can both be cylindrical structures.

[0046] In one embodiment, the tensile structure 25 is a flange structure, that is, a flange is provided on the clamping section 21 of the friction pad 20, and a retractable abutment structure is provided on the tension component of the detection component 13. When the tension component descends to the vicinity of the flange along the Z direction perpendicular to the welding plate, the abutment structure can be extended and abutted under the first flange, so that the target tensile force F can be applied to the friction pad 20.

[0047] In one embodiment, the tensile structure 25 is a groove structure, that is, a groove is provided on the clamping section 21 of the friction pad 20, and a retractable protrusion is provided on the tensile component of the detection component 13. When the tensile component descends along the Z direction perpendicular to the welding plate to a position aligned with the groove, the protrusion can be extended to cooperate with the above-mentioned groove, so that the target tensile force F can be applied to the friction pad 20.

[0048] In one embodiment, the detection assembly 13 may be provided with a hand crank lever connected to the tension component, and the tension component may be raised or lowered in the Z direction perpendicular to the welding plate by manually shaking the hand crank lever.

[0049] In one embodiment, if Figure 3 As shown, the distance between the detection component 13 and the welding component 12 is L1, and the distance between the detection component 13 and the clamping component 14 is L2; ​​the target component is slidably provided on the base 11 to change L1 and / or L2; wherein the target component is at least one component among the detection component 13, the welding component 12 and the clamping component 14; the friction welding machine 10 with detection function also includes a locking component for locking the target component. Specifically, when the target component includes the detection component 13, the locking component includes a first locking component for locking the detection component 13; when the target component includes the welding component 12, the locking component includes a second locking component for locking the welding component 12; when the target component includes the clamping component 14, the locking component includes a third locking component for locking the clamping component 14.

[0050] The corresponding relationship between the target component and the adjustment of L1 and L2 is as follows:

[0051] (1) When the target component only includes the detection component 13, L1 and L2 can be adjusted;

[0052] (2) When the target assembly only includes the welding assembly 12, L1 can be adjusted;

[0053] (3) When the target component only includes the pressing component 14, L2 can be adjusted;

[0054] (4) When the target component includes two components among the detection component 13, the welding component 12 and the pressing component 14, or when the target component includes the detection component 13, the welding component 12 and the pressing component 14 at the same time, L1 and L2 can be adjusted.

[0055] The aforementioned distance L1 is determined by the distance between two adjacent tapered welding holes on the proximal welding plate 30. L1 can be adjusted based on the distance between the two adjacent tapered welding holes on the proximal welding plate 30, so that L1 is equal to the distance between the two adjacent tapered welding holes. Friction pads 20 are available in multiple models. When performing tensile strength tests on different models of friction pads 20, the target tensile force F that the testing assembly 13 needs to apply to the friction pad 20 will also vary. Therefore, L2 can be adjusted so that the target tensile force F applied to each model of friction pad 20 is always greater than its normal operating tensile force F1 and less than its ultimate breaking force F2, thereby enabling tensile strength testing of different models of friction pads 20.

[0056] In one embodiment, a guide groove is provided on the base 11, and the target component slides in the guide groove. Specifically, only one guide groove is provided on the base 11, and all the target components slide in the guide groove; or, when the target component includes the welding component 12, the guide groove may include a first guide groove, and the welding component 12 slides in the first guide groove, such as Figure 4 As shown, when the target component includes a detection component 13, the guide groove may include a second guide groove 131, and the detection component 13 slides in the second guide groove 131; when the target component includes a clamping component 14, the guide groove may include a third guide groove 141, and the clamping component 14 slides in the third guide groove 141.

[0057] In this embodiment, guide grooves are provided to guide corresponding components, thereby improving the movement accuracy of the corresponding components.

[0058] In one embodiment, if Figure 4 and Figure 6As shown, the clamping component 121 includes a first clamping component 1211 and multiple second clamping components 1212. One end of the first clamping component 1211 is connected to the rotating component 123, and the other end is detachably connected to any second clamping component 1212. Each second clamping component 1212 is used to clamp the corresponding model of friction pad 20. Specifically, the second clamping member 1212 includes a ball head connecting section 12121, an intermediate section 12122 and a matching section 12123; one end of the first clamping member 1211 is connected to the rotating component 123, and the other end of the first clamping member 1211 is a clamping claw structure. When a certain model of friction welding disk 20 needs to be welded to the welding plate, the clamping claw can be used to clamp the intermediate section 12122 of the second clamping member 1212 corresponding to the model of friction welding disk 20. After clamping, the matching section 12123 can clamp the corresponding model of friction welding disk 20. At the same time, the ball head connecting section 12121 is coaxially connected to the pressure component 122; when the type of friction welding disk 20 needs to be replaced, the second clamping member 1212 is removed from the clamping claw, and the second clamping member 1212 matching the new friction welding disk 20 model is installed on the clamping claw, so as to achieve clamping of friction welding disks 20 of different models.

[0059] In one embodiment, if Figure 6 、 Figure 7 and Figure 8 As shown, the clamping section 21 is a regular prism structure. The second clamping member 1212 is provided with a clamping hole of the regular prism structure. When the clamping member 121 is lowered along the Z direction perpendicular to the welding plate until the clamping hole and the regular prism structure of the clamping section 21 are matched, the clamping section 21 is clamped.

[0060] In one embodiment, if Figure 1 、 Figure 2 、 Figure 5 、 Figure 6 、 Figure 7 and Figure 8 As shown, the clamping section 21 is connected to the welding section 22 via a pressure shoulder ring 23. The clamping section 21, pressure shoulder ring 23, and welding section 22 are arranged along the axial direction of the friction pad 20. The diameter of the pressure shoulder ring 23 is larger than the maximum diameter of the welding section 22. When welding is completed, the surface of the pressure shoulder ring 23 connected to the welding section 22 is pressed tightly against the proximal welding plate 30, or even embedded in the proximal welding plate 30, forming a mechanical embedding force, which increases the friction pad 20's ability to resist external forces after welding.

[0061] In one embodiment, if Figure 1 、 Figure 5 、 Figure 8 and Figure 9As shown, the friction pad 20 is provided with a slag discharge channel 24 extending axially through the friction pad 20. The slag discharge channel 24 has a fixed diameter, or its diameter gradually decreases from the clamping section 21 to the welding section 22. This slag discharge channel 24 not only serves as a channel for the friction weld melt to be discharged during welding, but more importantly, forms an annular structure within the welding section 22 of the friction pad 20. When partially embedded in the distal welding plate 40, this annular structure facilitates a cross-interlocking, mechanically bonded, shear-resistant structure with the distal welding plate 40, enhancing shear resistance.

[0062] In one embodiment, if Figure 1 and Figure 5 As shown, the end surface of the welding section 22 is a concave surface, and the end surface of the welding section 22 is located at the end of the welding section 22 away from the clamping section 21. Specifically, the end surface of the welding section 22 can be a concave cone surface, and the diameter of the concave cone surface gradually decreases as it approaches the clamping section 21.

[0063] If the end surface of the welding section 22 were a completely flat circular surface, during rotation, friction would occur in all regions simultaneously. Due to the higher linear velocity and energy input at the outer edge, the distal welding plate 40 would melt faster, while the lower energy input at the center would cause the distal welding plate 40 to melt slower. Therefore, a completely circular end surface would not allow the welding section 22 to deeply embed into the distal welding plate 40, creating a mechanical engagement effect. In this embodiment, the end surface of the welding section 22 of the friction pad 20 is designed as an inwardly concave surface, making the edge of the end surface of the welding section 22 the first area to contact the distal welding plate 40. Under high temperatures, the metal in this area melts first, resulting in a matching linear velocity, energy input, and melting rate between the outer and center edges. This deepens the embedding depth of the outer weld interface into the distal welding plate 40, increasing joint strength and enhancing shear resistance.

[0064] In one embodiment, if Figure 9 As shown, the end surface of the welding section 22 is an outward convex surface. Specifically, it can be an outward convex conical surface.

[0065] In one embodiment, the friction pad 20 is a metal structure, and its strength is greater than that of the welding plate, thereby reducing the wear of the friction pad 20 during the welding process.

[0066] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A friction welding machine with detection function, characterized in that: The friction welding machine with detection function includes: A base body that can move along the X direction; A detection component disposed on the base body and capable of lifting and lowering along the Z direction perpendicular to the welded plate. A tensile component matching the tensile structure on the Nth friction welding pad is provided on the detection component. The tensile component is used to apply a target tensile force F to the Nth friction welding pad, where F1 < F < F2. F1 is the normal operating tensile force of the Nth friction welding pad, and F2 is the ultimate failure tensile force of the Nth friction welding pad; A welding component disposed on the base body and on one side of the detection component. The welding component includes a clamping component, a rotating component, and a pressing component. The clamping component is used to clamp the (N + 1)th friction welding pad, and the clamping component can lift and lower along the Z direction perpendicular to the welded plate. The rotating component is connected to the clamping component and is used to drive the clamping component to rotate. The pressing component is connected to the clamping component and is used to apply a pressure to the clamping component; A pressing component disposed on the base body and on the other side of the detection component, for pressing the welded plate.

2. The friction welding machine with detection function according to claim 1, characterized in that: The distance between the detection component and the welding component is L1, and the distance between the detection component and the pressing component is L2. The target component can be slidably disposed on the base body to change L1 and / or L2. Among them, the target component is at least one of the detection component, the welding component, and the pressing component; The friction welding machine with detection function further includes a locking component for locking the target component.

3. The friction welding machine with detection function according to claim 2, characterized in that: A guide groove is provided on the base body, and the target component slides in the guide groove.

4. The friction welding machine with detection function according to claim 1, characterized in that: The clamping component includes a first clamping member and a plurality of second clamping members. One end of the first clamping member is connected to the rotating component, and the other end is detachably connected to any one of the second clamping members. Each second clamping member is used to clamp the corresponding type of friction welding pad.

5. The friction welding machine with detection function according to claim 1, characterized in that: The pressing component can lift and lower along the Z direction perpendicular to the welded plate, or the pressing component is a roller structure.

6. A friction pad, characterized in that: The friction welding pad has a welding section and a clamping section connected to the welding section. The diameter of the welding section gradually decreases along the direction away from the clamping section. An anti-tensile structure is provided inside or outside the clamping section. The anti-tensile structure is used to match the tensile component in the friction welding machine with detection function according to any one of claims 1 - 4; 7. The friction pad according to claim 6, characterized in that: The anti-tensile structure is an internal thread or external thread structure; or, the anti-tensile structure is a flanging structure; or, the anti-tensile structure is a groove structure.

8. The friction pad according to claim 6, characterized in that: The clamping section is connected to the welding section through a shoulder ring, and the diameter of the shoulder ring is larger than the maximum diameter of the welding section.

9. The friction pad according to claim 6, characterized in that: A slag discharge channel axially penetrating the friction welding pad is provided inside the friction welding pad; The slag discharge channel has a fixed diameter, or the diameter of the slag discharge channel gradually decreases from the clamping section to the welding section direction; 10. The friction pad according to claim 6, characterized in that The end face of the welding section is a concave surface, or the end face of the welding section is a convex surface.

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