A forming device for processing friction plug riveting joints

Abstract

The present application provides a forming device for processing friction plug rivet welding joints, relating to the field of welding technology, including a friction welding structure and a positioning and rejection structure, the friction welding structure including a motor, a coupling, a transmission shaft, and a plug rivet sleeve, one end of the plug rivet sleeve is internally fixedly connected to the plug rivet structure; the positioning and rejection structure includes a cross arm, a positioning seat, two positioning slide bars, a protective sleeve, a rejection sleeve, a chip groove, and a boss, a second cutting edge is formed on the inner wall of the rejection sleeve, and a first cutting edge is formed on the bottom of the boss; the technical key points are: by arranging a rejection sleeve on the outside of the plug rivet structure, the second cutting edge is formed on the rejection sleeve by machining the chip groove, and the first cutting edge is formed by the boss, when the rejection sleeve is mounted on the top of the plate and keeps a relatively active state with the plug rivet structure, the metal extension generated when the welding head and the plate are welded can be rejected, which is beneficial to processing and helps to ensure that the appearance of the welding structure remains in the best state.

Description

Technical Field

[0001] The invention relates to the technical field of welding, in particular to a forming device for processing friction plug riveting welding joints. Background Art

[0002] Friction welding is a welding method that uses the heat generated by friction between the workpiece contact surfaces as a heat source to cause the workpieces to undergo plastic deformation under pressure. Under the action of constant or increasing pressure and torque, the relative movement between the welding contact end faces generates frictional heat and plastic deformation heat on the friction surface and its surrounding area, causing the temperature in the surrounding area to rise to a temperature range close to (but generally below) the melting point. This reduces the material's deformation resistance, improves its plasticity, and breaks up the oxide film on the interface. Under the action of the forging pressure, the material undergoes plastic deformation and flow, and welding can be achieved through molecular diffusion and recrystallization at the interface.

[0003] Friction plug rivet welding EJOWELD is a new connection technology that initially uses the high-speed rotation and certain pressure of the "fastener" to penetrate the upper plate (the friction heat generated acts on the components and the substrate without reaching the melting temperature). After penetrating the upper plate, the fastener stops pressing down and continues to rotate to generate heat and melt the lower plate. Under the action of pressure, the "fastener" and the lower plate are welded to form a stable connection. It is a process that combines FDS and RSW.

[0004] The patent document with publication number CN208895102U discloses a friction plug riveting joint forced forming device that drives the rivet to rotate at high speed through a first driving device, and then drives the rivet and the clamping sleeve into the upper plate to be riveted under the action of an external device. The second driving device drives the rivet downward in a preset direction close to the lower plate, and the depth of the downward penetration is the height of the cone at the end of the rivet, and the end of the clamping sleeve contacts the surface of the lower plate and maintains a fixed pressure. Therefore, during specific use, the friction plug riveting joint forced forming device is pressed down as a whole, and the high-speed rotating rivet continues to penetrate under the pressure provided by the external equipment, so that the rivet and the lower plate generate heat by friction to form a metallurgical bond. The head of the rivet and the clamping sleeve also generate heat by friction to form a metallurgical bond. At the end of the rivet, the metal flash generated by the downward penetration fills the cavity formed by the cone of the clamping sleeve and the end of the rivet before welding, so that the volume of the cone of the end of the rivet is consistent with the volume of the cavity formed by the cone of the clamping sleeve and the end of the rivet, thereby obtaining a forced-formed joint without flash.

[0005] However, in the process of implementing the above technical solution, it was found that the above technical solution had the following technical problems:

[0006] When welding rivets, the existing friction plug riveting joint forced forming device fills the metal flash generated by the piercing into the cavity formed by the cone of the clamping sleeve and the end of the rivet before welding, thereby eliminating the flash. However, in the actual welding process, the friction end of the rivet is continuously softened by friction. When the amount of the filled part is larger than the space accommodated in the cavity, it is easy to affect the subsequent welding work. In addition, the excess filler will increase the distance between the plate and the rivet, which is easy to damage the welding structure between the plate and the rivet welding point. Summary of the Invention

[0007] In order to overcome the problem that the existing friction plug rivet welding joint forced forming device fills the metal flash generated by the piercing into the cavity formed by the cone of the clamping sleeve and the end of the rivet before welding, the friction end of the rivet is continuously rubbed and softened. When the amount of the filling part is greater than the space accommodated in the cavity, it is easy to affect the subsequent welding work, and the excess filler will increase the distance between the plate and the rivet, which is easy to destroy the welding structure between the plate and the rivet welding point. The embodiment of the present application provides a forming device for processing friction plug rivet welding joints, by arranging a rejection sleeve on the outside of the welding head on the plug rivet structure, forming a second cutting edge on the rejection sleeve by machining a chip groove, and forming a first cutting edge by a boss. When the rejection sleeve is mounted to the top of the plate and keeps a relatively active state with the plug rivet structure, the metal extension generated when the welding head and the plate are welded can be removed to ensure that the connection area between the welding head and the plate is flat, which is conducive to processing and convenient for subsequent use.

[0008] The technical solution adopted by the embodiment of the present application to solve the technical problem is:

[0009] A forming device for processing a friction plug riveted joint comprises a friction welding structure, a positioning and removing structure and a plate, wherein the positioning and removing structure is arranged on one side of the friction welding structure;

[0010] The plate is mounted on the bottom of the friction welding structure and the positioning removal structure;

[0011] The friction welding structure includes a motor, one end of the motor shaft is drivingly connected to a coupling, one end of the coupling is assembled to a transmission shaft, one end of the transmission shaft is assembled to a plug rivet sleeve, one end of the plug rivet sleeve is fixedly connected to a plug rivet structure, the plug rivet structure includes a plug rivet screw, one end of the plug rivet screw is integrally formed with a plug rivet head, and one end of the plug rivet head is integrally formed with a welding head;

[0012] The positioning and rejection structure includes a cross arm, a positioning seat is provided at the bottom of the cross arm, two positioning slides are processed at the center of the top of the positioning seat, the bottom of one end of the positioning seat is assembled and connected with a protective sleeve, the inner side of the protective sleeve is provided with a rejection sleeve, the interior of the rejection sleeve is processed with a chip groove, the bottom of the rejection sleeve is integrally formed with a boss, the inner wall of the rejection sleeve at the chip groove is formed with a second cutting edge, and the bottom of the boss is formed with a first cutting edge on one side of the chip groove.

[0013] In one possible implementation, the same transmission support is provided on the outside of both ends of the transmission shaft, one side of the transmission support is assembled and connected to a lifting plate seat, the motor is assembled to one side of the lifting plate seat, and the welding head is controlled to rotate on the top surface of the plate through a coupling, a transmission shaft, and a plug rivet sleeve.

[0014] In one possible implementation, a mounting plate seat is provided at one end of the cross arm, and a positioning groove is processed on the surface of one end of the mounting plate seat. One end of the cross arm is placed inside the positioning groove and assembled and fixed to the mounting plate seat by bolts, and the positioning groove is used to limit the cross arm from moving vertically downward.

[0015] In one possible implementation, a second threaded rod is processed at one end of the positioning slide rod, and a fastening nut is threadedly connected to one end of the second threaded rod. Both of the positioning slide rods are slidably connected to the inside of the cross arm, and the bottom of the fastening nut is supported on the top of the cross arm, so that the positioning seat and the protective cover are suspended.

[0016] In one possible implementation, a bushing is integrally formed on the top of the rejection sleeve, a bearing is interference fit inside the locating seat, the bushing is interference fit to the inside of the bearing, the rejection sleeve and the plug rivet head are relatively movable, and the rejection sleeve and the protective sleeve are relatively movable.

[0017] In one possible implementation, the outer wall of the rejection sleeve can also be processed into a form fixed to the inner wall of the protective sleeve, the bearing is interference fit into the interior of the positioning seat, and the bushing and the cross arm are separated from each other and interference fit into the interior of the bearing.

[0018] In one possible implementation, a dust suction interface is machined on the outer wall of the protective sleeve, and the dust suction interface faces the chip groove. One end of the plug rivet structure extends into the interior of the rejection sleeve through the inner side of the positioning seat, and the second cutting edge on the rejection sleeve and the first cutting edge on the boss remove protrusions during the friction welding process, so that the removed part enters between the protective sleeve and the rejection sleeve through the chip groove.

[0019] In one possible implementation, a tile seat is integrally formed at one end of the cross arm, and multiple rollers are installed on the top and bottom of the tile seat. An annular groove is processed on the outer wall of one end of the plug rivet sleeve, and the tile seat is adapted to be connected to the inside of the annular groove. The multiple tile seats roll to the top and bottom inner walls of the annular groove respectively.

[0020] In one possible implementation, a groove is machined at one end of the positioning seat, and a counterweight block is slidably connected inside the groove. The counterweight block and the positioning seat are respectively located at the two ends of the two positioning slide rods, so that the positioning slide rod is coaxially arranged with the hole inside the cross arm.

[0021] In one possible implementation, the counterweight block includes a T-shaped block, a U-shaped block is provided on the top of the T-shaped block, a first threaded rod is movably connected to the inside of the U-shaped block, one end of the first threaded rod is assembled and connected to a control rod, the T-shaped block is inserted into the inside of the groove from the bottom to the top, the U-shaped block is buckled on the top of one end of the positioning seat, and the other end of the first threaded rod is threadedly connected to the inside of the T-shaped block.

[0022] The beneficial effects of this application are:

[0023] First, in this solution, a reject sleeve is provided on the outside of the welding head on the plug rivet structure. The second cutting edge is formed on the reject sleeve by machining a chip groove, and the first cutting edge is formed by a boss. When the reject sleeve is mounted on the top of the plate and kept in a relatively movable state with the plug rivet structure, the metal extension generated when the welding head and the plate are welded can be rejected, thereby ensuring that the connection area between the welding head and the plate is flat, which is conducive to processing and convenient for subsequent use.

[0024] Secondly, in this solution, the positioning seat is installed by using the installation plate seat, the cross arm, the positioning slide rod, the second threaded rod, and the fastening nut. The installation height of the positioning seat can be controlled by adjusting the threaded connection between the fastening nut and the second threaded rod, so that the boss at the bottom of the removal sleeve can be placed on the top of the plate.

[0025] Third, in this solution, a counterweight block consisting of a T-block, a U-block, a first threaded rod and a control rod is set at one end of the positioning seat. After the position of the counterweight block is adjusted outside the positioning seat, the distance between the T-block and the U-block can be controlled by rotating the first threaded rod to fix the counterweight block to the positioning seat, which is convenient for balancing the two ends of the positioning seat on both sides of the two positioning slides, so that the positioning slides can move smoothly up and down inside the cross arm. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the overall structure of a forming device for processing a friction plug riveted joint in the present invention in use;

[0027] Figure 2This is a structural schematic diagram of a positioning and rejecting structure of a forming device for processing a friction plug riveted joint according to the present invention;

[0028] Figure 3 This is a structural schematic diagram of a forming device for processing friction plug riveted joints according to the present invention, in which a cross arm and a positioning seat are disconnected;

[0029] Figure 4 This is an exploded view of a positioning and rejection structure of a forming device for processing a friction plug riveted joint according to the present invention;

[0030] Figure 5 This is a structural schematic diagram of a rejection sleeve of a forming device for processing a friction plug riveted joint according to the present invention;

[0031] Figure 6 This is a schematic diagram of the connection structure of a forming device for processing a friction plug riveted joint and a welding head;

[0032] Figure 7 A cross-sectional view of a rejection sleeve of a forming device for processing a friction plug riveted joint according to the present invention;

[0033] Figure 8 The present invention is a structural schematic diagram of a counterweight block of a forming device for processing friction plug riveted joints.

[0034] Reference numerals:

[0035] 1. Friction welding structure; 101. Lifting plate base; 102. Motor; 103. Coupling; 104. Transmission support; 105. Transmission shaft; 106. Plug riveting sleeve;

[0036] 2. Positioning and rejection structure; 201. Mounting plate base; 202. Cross arm; 203. First threaded rod; 204. Positioning base; 205. Protective cover; 206. Dust collection interface; 207. Tile base; 208. Bushing; 209. Bearing; 210. Roller; 211. Fastening nut; 212. Rejection sleeve; 213. Positioning slide; 214. Second threaded rod; 215. U-shaped block; 216. T-shaped block; 217. Control lever;

[0037] 3. Plate; 4. Ring groove; 5. Positioning notch;

[0038] 6. Plug rivet structure; 601. Plug rivet screw; 602. Plug rivet head; 603. Welding head;

[0039] 7. Strip groove; 8. Chip groove; 9. Boss; 10. First cutting edge; 11. Second cutting edge. DETAILED DESCRIPTION

[0040] The technical solution in the embodiments of the present application is to solve the problems of the above-mentioned background technology, and the overall idea is as follows:

[0041] Example 1:

[0042] This embodiment introduces a specific structure of a forming device for processing friction plug riveting joints. Figures 1-8 As shown, it includes a friction welding structure 1, a positioning and removing structure 2 arranged on one side of the friction welding structure 1, and a plate 3 mounted on the bottom of the friction welding structure 1 and the positioning and removing structure 2. The friction welding structure 1 includes a motor 102, one end of the motor 102 rotating shaft is drivingly connected to a coupling 103, one end of the coupling 103 is assembled to a transmission shaft 105, one end of the transmission shaft 105 is assembled to a plug rivet jacket 106, one end of the plug rivet jacket 106 is fixedly connected to a plug rivet structure 6, the plug rivet structure 6 includes a plug rivet screw 601, one end of the plug rivet screw 601 is integrally formed with a plug rivet head 602, and one end of the plug rivet head 602 is integrally formed with a welding head 603;

[0043] Among them, Figure 1 As shown, the same transmission support 104 is provided on the outside of both ends of the transmission shaft 105, and a lifting plate seat 101 is assembled and connected to one side of the transmission support 104. By assembling the motor 102 to one side of the lifting plate seat 101, and then controlling the friction welding structure 1 to move toward the bottom as a whole with the help of the lifting control structure (based on the existing technology) connected to the lifting plate seat 101, the motor 102 controls the rotation of the transmission shaft 105 through the coupling 103, and the plug rivet structure 6 fixed to one end of the plug rivet jacket 106 can be controlled to rotate with the help of the transmission shaft 105. In this state, the welding head 603 on the plug rivet structure 6 contacts the top surface of the plate 3, and the friction force between the rotating welding head 603 and the plate 3 can generate heat to soften the contact area between the welding head 603 and the plate 3, so that the friction welding work can be achieved after cooling.

[0044] The positioning and rejection structure 2 includes a cross arm 202, a positioning seat 204 is provided at the bottom of the cross arm 202, two positioning slides 213 are processed at the center of the top of the positioning seat 204, a protective sleeve 205 is assembled and connected to the bottom of one end of the positioning seat 204, a rejection sleeve 212 is provided on the inner side of the protective sleeve 205, a chip removal groove 8 is processed inside the rejection sleeve 212, and a boss 9 is integrally formed at the bottom of the rejection sleeve 212;

[0045] Among them, Figure 1 and Figure 2As shown, a mounting plate seat 201 is provided at one end of the cross arm 202, and a positioning notch 5 is machined on the surface of one end of the mounting plate seat 201. By placing one end of the cross arm 202 inside the positioning notch 5 and assembling and fixing it to the mounting plate seat 201 with bolts, the inner wall of the positioning notch 5 restricts the bolts from rotating in the vertical plane when connected to the cross arm 202, thereby pointing vertically downward, which is conducive to controlling the coaxial state of one end of the positioning seat 204 and the plug rivet structure 6;

[0046] Secondly, in order to facilitate the installation of the positioning seat 204 to the bottom of the plug rivet jacket 106, the plug rivet structure 6 is passed through the inside of the rejection sleeve 212 and the bushing 208, and kept in a relatively movable state, as shown in FIG. Figure 2 and Figure 3 As shown, one end of a positioning slide 213 is processed with a second threaded rod 214, and one end of the second threaded rod 214 is threadedly connected to a fastening nut 211. By making both positioning slides 213 slidably connected to the inside of the cross arm 202, and by supporting the bottom of the fastening nut 211 on the top of the cross arm 202, the positioning seat 204 and the protective cover 205 can be suspended.

[0047] Furthermore, in order to facilitate the installation of the rejection sleeve 212 on the inner side of the protective sleeve 205, the softened protrusions generated by the welding head 603 on the plug rivet structure 6 during the friction welding process with the plate 3 can be removed by the rejection sleeve 212. Figure 4 and Figure 5 As shown, the top of the rejection sleeve 212 is integrally formed with a bushing 208, the interior of the positioning seat 204 is interference-fitted with a bearing 209, and the bushing 208 is interference-fitted into the interior of the bearing 209. By making the rejection sleeve 212 and the plug rivet head 602 relatively movable, and the rejection sleeve 212 and the protective sleeve 205 relatively movable, the plug rivet structure 6 can be driven to rotate by the plug rivet sleeve 106, and the protrusions can be removed by utilizing the rotational differential between the plug rivet structure 6 and the rejection sleeve 212;

[0048] At the same time, as the friction welding process continues, the plug rivet structure 6 continues to move toward the bottom along with the plug rivet jacket 106. Since the boss 9 at the bottom of the rejection sleeve 212 rests on the top of the plate 3, the plug rivet structure 6 can move from the top to the bottom inside the bushing 208 without affecting the normal function of the rejection sleeve 212. In addition, the rejection sleeve 212 will not exert pressure on the plate 3, causing the plug rivet structure 6 and the plate 3 to move away from each other.

[0049] In some examples, the outer wall of the ejector sleeve 212 can also be processed into a form fixed to the inner wall of the protective sleeve 205. By making the bearing 209 interference fit inside the positioning seat 204, and the bushing 208 and the cross arm 202 separated from each other and interference fit inside the bearing 209, when the plug rivet head 602 on the plug rivet structure 6 slides inside the bushing 208, it can directly contact the positioning seat 204, while the ejector sleeve 212 remains fixed with the protective sleeve 205. This can improve the efficiency of the ejector sleeve 212 in removing protrusions generated by the welding of the welding head 603 and the plate 3.

[0050] Furthermore, in order to improve the concentricity of the rotation of the plug rivet jacket 106 and avoid excessive swinging of the end of the plug rivet jacket 106 away from the transmission shaft 105, as shown in FIG. Figure 1 and Figure 2 As shown, a tile seat 207 is integrally formed at one end of the cross arm 202, and a plurality of rollers 210 are installed on the top and bottom of the tile seat 207. An annular groove 4 is processed on the outer wall of one end of the plug rivet sleeve 106. By making the tile seat 207 adaptable and connected to the inside of the annular groove 4, when the plurality of tile seats 207 respectively roll to the top and bottom inner walls of the annular groove 4, the plug rivet sleeve 106 can be supported to rotate and the plug rivet sleeve 106 can be prevented from being in an eccentric state when rotating.

[0051] Example 2:

[0052] Based on Example 1, this example introduces the specific structure of the protective sleeve 205 and the rejection sleeve 212. The rejection sleeve 212 is formed with a second cutting edge 11 on the inner wall located at the chip groove 8, and the bottom of the boss 9 is formed with a first cutting edge 10 on one side of the chip groove 8 (the second cutting edge 11 and the first cutting edge 10 are processed at a right angle);

[0053] Among them, Figure 7 As shown, when the rotating welding head 603 is friction-welded with the plate 3, the connecting portion thereof slowly deforms. The protective sleeve 205 and the positioning seat 204 are both subjected to their own weight, causing the boss 9 on the rejection sleeve 212 to rest on the top of the plate 3. When the deformed portion extends outward beyond the area covered by the cross-sectional circle of the plug rivet head 602, it is removed by the second cutting edge 11 on the rejection sleeve 212, while the protrusions above the surface of the plate 3 are removed by the first cutting edge 10 on the boss 9.

[0054] Secondly, in order to facilitate the collection of discarded materials, such as Figure 1 、 Figure 3 and Figure 4As shown, the outer wall of the protective sleeve 205 is processed with a dust suction interface 206, and one end of the plug rivet structure 6 extends into the interior of the removal sleeve 212 through the inner side of the positioning seat 204. By making the dust suction interface 206 face the chip discharge groove 8, after connecting one end of the dust suction interface 206 to the vacuum cleaner interface, the protrusions in the friction welding process are removed by the second cutting edge 11 on the removal sleeve 212 and the first cutting edge 10 on the boss 9. The removed objects are caused by the suction force of the vacuum cleaner to enter between the protective sleeve 205 and the removal sleeve 212 through the chip discharge groove 8, and quickly enter the interior of the dust suction interface 206 to complete the collection work.

[0055] Example 3:

[0056] Based on Examples 1 and 2, this embodiment introduces the specific structure of the positioning seat 204. A groove 7 is machined at one end of the positioning seat 204. A counterweight block is slidably connected to the interior of the groove 7. The counterweight block includes a T-shaped block 216. A U-shaped block 215 is provided on the top of the T-shaped block 216. The first threaded rod 203 is movably connected to the interior of the U-shaped block 215. One end of the first threaded rod 203 is assembled and connected to a control rod 217.

[0057] Among them, by locating the counterweight block and the positioning seat 204 at the two ends of the two positioning slide bars 213 respectively, when the counterweight block serves as a counterweight for the positioning seat 204 and the positioning slide bar 213 is made coaxial with the hole inside the cross arm 202, it is possible to avoid that when the positioning seat 204 and the protective sleeve 205 slide up and down outside the plug rivet structure 6, the positioning slide bar 213 is restricted by the angle of inclination of the contact area with the cross arm 202, thereby increasing the movement resistance;

[0058] Secondly, in order to facilitate the actual situation, adjust the counterweight block to the counterweight state at one end of the positioning seat 204, such as Figure 3 and Figure 8 As shown, the T-shaped block 216 is inserted into the interior of the strip groove 7 from the bottom to the top, and the U-shaped block 215 is buckled on the top of one end of the positioning seat 204. By threading the other end of the first threaded rod 203 to the interior of the T-shaped block 216, when the U-shaped block 215 and the T-shaped block 216 are controlled to approach each other, the U-shaped block 215 and the T-shaped block 216 can apply pressure to the positioning seat 204, thereby fixing it to the outside of the positioning seat 204, making it easy to adjust the position.

[0059] Specifically, when the forming device for processing a friction plug riveting joint is used to perform friction welding of the plug riveting structure 6 and the plate 3:

[0060] First, the plug rivet screw 601 on the plug rivet structure 6 is fixed to the inside of the plug rivet jacket 106 (based on a fixing means known in the art), and the friction welding structure 1 is controlled to move toward the bottom as a whole by means of a lifting control structure connected to the lifting plate base 101 (based on existing technical means in the art). The motor 102 controls the transmission shaft 105 to rotate through the coupling 103, and the transmission shaft 105 controls the plug rivet structure 6 fixed to one end of the plug rivet jacket 106 to rotate. In this state, the welding head 603 on the plug rivet structure 6 contacts the top surface of the plate 3.

[0061] At the same time, the friction welding structure 1 moving from the top to the bottom drives the mounting plate seat 201 to move toward the bottom through the transmission support 104, so that the cross arm 202 assembled to one end of the mounting plate seat 201 moves toward the bottom (because the two positioning slides 213 pass through the interior of the cross arm 202, and the second threaded rod 214 processed to one end of the cross arm 202 is threadedly connected to the fastening nut 211, and is supported on the top of the cross arm 202 by means of the fastening nut 211, so that the positioning seat 204 and the protective sleeve 205 are in a suspended state), thereby driving the positioning seat 204, the protective sleeve 205, and the rejection sleeve 212 to move toward the bottom, so that the boss 9 at the bottom of the rejection sleeve 212 is supported on the surface of the plate 3;

[0062] Next, when the rotating plug rivet structure 6 causes the welding head 603 to generate heat by friction with the surface of the plate 3, the contact area between the welding head 603 and the plate 3 softens, thereby fusing the metal structures together (friction welding can be achieved after cooling);

[0063] At the same time, the contact area between the welding head 603 and the plate 3 extends in all directions when softened. When the extended portion exceeds the area covered by the cross-sectional circle of the plug rivet head 602, the second cutting edge 11 on the ejection sleeve 212 can remove the protrusions above the surface of the plate 3 because the ejection sleeve 212 is in a differential rotation state with the plug rivet structure 6 or is fixed to the protective sleeve 205. The first cutting edge 10 on the boss 9 can also remove the protrusions.

[0064] Subsequently, as the friction welding work between the welding head 603 and the plate 3 continues, the plug rivet structure 6 moves to the bottom as a whole, and the rejection sleeve 212 is placed on the top of the plate 3 through the boss 9, always in a fixed height state, and the protrusions that continue to extend to the surroundings during the welding process will be removed by the first cutting edge 10 and the second cutting edge 11. The removed protrusions are sucked up by the vacuum cleaner connected to the dust suction interface 206, and enter between the protective sleeve 205 and the rejection sleeve 212 through the chip groove 8, and quickly enter the interior of the dust suction interface 206 to complete the collection work.

[0065] Finally, it should be noted that the above embodiments are merely examples for the purpose of illustrating the present invention and are not intended to limit the embodiments. Those skilled in the art will readily appreciate that other variations or modifications based on the above description are possible. It is not necessary and impossible to provide an exhaustive list of all embodiments. However, obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A forming device for processing friction plug riveting joints, characterized in that: include: Friction welding structure (1); A positioning and rejecting structure (2) is provided on one side of the friction welding structure (1); A plate (3) is mounted on the bottom of the friction welding structure (1) and the positioning and removing structure (2); The friction welding structure (1) comprises a motor (102), one end of the motor (102) shaft is connected in a driving manner to a coupling (103), one end of the coupling (103) is connected in an assembled manner to a transmission shaft (105), one end of the transmission shaft (105) is connected in an assembled manner to a plug rivet sleeve (106), and one end of the plug rivet sleeve (106) is fixedly connected to a plug rivet structure (6) inside. The positioning and rejecting structure (2) includes a cross arm (202), a positioning seat (204) is provided at the bottom of the cross arm (202), two positioning slide bars (213) are processed at the center of the top of the positioning seat (204), a protective sleeve (205) is assembled and connected at the bottom of one end of the positioning seat (204), a rejecting sleeve (212) is provided on the inner side of the protective sleeve (205), a chip groove (8) is processed inside the rejecting sleeve (212), a boss (9) is integrally formed at the bottom of the rejecting sleeve (212), a second cutting edge (11) is formed on the inner wall of the rejecting sleeve (212) at the chip groove (8), and a first cutting edge (10) is formed on the bottom of the boss (9) at one side of the chip groove (8); The plug rivet structure (6) comprises a plug rivet screw (601), one end of the plug rivet screw (601) is integrally formed with a plug rivet head (602), and one end of the plug rivet head (602) is integrally formed with a welding head (603).

2. A forming device for processing friction plug riveting joints according to claim 1, characterized in that: The same transmission support (104) is provided outside both ends of the transmission shaft (105), and a lifting plate seat (101) is assembled and connected to one side of the transmission support (104); The motor (102) is assembled to one side of the lifting plate seat (101), and controls the welding head (603) to rotate on the top surface of the plate (3) through the coupling (103), the transmission shaft (105), and the plug riveting sleeve (106).

3. A forming device for processing friction plug riveting joints according to claim 1, characterized in that: One end of the cross arm (202) is provided with a mounting plate seat (201), and a positioning notch (5) is processed on the surface of one end of the mounting plate seat (201). One end of the cross arm (202) is placed inside the positioning notch (5) and is assembled and fixed with the mounting plate seat (201) by bolts, and the positioning notch (5) is used to limit the cross arm (202) from moving vertically downward.

4. A forming device for processing friction plug riveting joints according to claim 1, characterized in that: One end of the positioning slide rod (213) is processed with a second threaded rod (214), and one end of the second threaded rod (214) is threadedly connected with a fastening nut (211); The two positioning slide bars (213) are both slidably connected to the interior of the cross arm (202), and the bottom of the fastening nut (211) is supported on the top of the cross arm (202), so that the positioning seat (204) and the protective cover (205) are suspended.

5. The forming device for processing friction plug riveting joints according to claim 1, characterized in that: The top of the rejection sleeve (212) is integrally formed with a bushing (208), the interior of the positioning seat (204) is interference-fitted with a bearing (209), the bushing (208) is interference-fitted to the interior of the bearing (209), the rejection sleeve (212) and the plug rivet head (602) are relatively movable, and the rejection sleeve (212) and the protective sleeve (205) are relatively movable.

6. A forming device for processing friction plug riveting joints according to claim 5, characterized in that: The outer wall of the rejection sleeve (212) can also be processed into a form fixed to the inner wall of the protective sleeve (205), and the bearing (209) is interference-fitted into the interior of the positioning seat (204), while the bushing (208) and the cross arm (202) are separated from each other and interference-fitted into the interior of the bearing (209).

7. The forming device for processing friction plug riveting joints according to claim 1, characterized in that: The outer wall of the protective sleeve (205) is processed with a dust suction interface (206), and the dust suction interface (206) faces the chip removal groove (8); One end of the plug rivet structure (6) extends into the interior of the rejection sleeve (212) through the inner side of the positioning seat (204), and the second cutting edge (11) on the rejection sleeve (212) and the first cutting edge (10) on the boss (9) remove protrusions during the friction welding process, so that the removed part enters between the protective sleeve (205) and the rejection sleeve (212) through the chip removal groove (8).

8. The forming device for processing friction plug riveting joints according to claim 1, characterized in that: One end of the cross arm (202) is integrally formed with a tile seat (207), the top and bottom of the tile seat (207) are both mounted with a plurality of rollers (210), and an outer wall of one end of the plug rivet jacket (106) is machined with an annular groove (4); The tile seats (207) are adapted to be connected to the inside of the annular groove (4), and a plurality of the tile seats (207) are respectively rolled to the top and bottom inner walls of the annular groove (4).

9. The forming device for processing friction plug riveting joints according to claim 1, characterized in that: One end of the positioning seat (204) is processed with a groove (7), and a counterweight block is slidably connected inside the groove (7). The counterweight block and the positioning seat (204) are respectively located at the two ends of two positioning slide bars (213), so that the positioning slide bars (213) are coaxially arranged with the hole inside the cross arm (202).

10. A forming device for processing friction plug riveting joints according to claim 9, characterized in that: The counterweight block comprises a T-shaped block (216), a U-shaped block (215) is provided on the top of the T-shaped block (216), a first threaded rod (203) is movably connected inside the U-shaped block (215), and a control rod (217) is assembled and connected to one end of the first threaded rod (203); The T-shaped block (216) is inserted into the interior of the strip groove (7) from the bottom to the top, the U-shaped block (215) is buckled on the top of one end of the positioning seat (204), and the other end of the first threaded rod (203) is threadedly connected to the interior of the T-shaped block (216).

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