A friction welding machine

Abstract

The present invention relates to the technical field of friction welding machines, specifically a friction welding machine, including a load-bearing mechanism, a transmission mechanism installed on the load-bearing mechanism, and a friction welding mechanism installed on the transmission mechanism, wherein the load-bearing mechanism includes a base. A clamping plate and an elastic telescopic member capable of tightening and clamping the surface of a workpiece are movably installed on the pad, and a compression spring capable of pushing a plurality of pull rods is movably installed in an annular groove outside the beam. When the main hydraulic member drives the traction member to extend, the two outer frames connected by the traction member can drive the two constrained beams and the two clamped workpieces to be close and pressed, and the fasteners installed in the middle of the two protective pads can cooperate with the insertion rod to control the extension of the scraper. At this time, the blade head of the scraper can cut off the metal waste overflowing from the gap between the two workpieces after pressing, thereby avoiding the formation of irregular holes in the weld due to the cooling of the overflowing metal layer by layer at the weld of the workpiece.

Description

Technical Field

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

[0002] The friction welding machine uses the heat generated by the friction between the end faces of the workpiece to make it reach a plastic state, and then completes the welding by upsetting. Because the chips are often firmly adhered to the cutter head when turning the workpiece, and local welding will also occur when the lubrication between the shaft and the bearing is poor, friction welding was invented based on these phenomena. Friction welding can be divided into two types: continuous drive friction welding and inertia friction welding.

[0003] At present, when the friction welding machine presses and rubs the cross-sections of two workpieces, as the two cross-sections of the workpieces continue to heat up, the two end faces after pressing will overflow metal waste due to the extrusion force during the welding process. Once the overflowing metal waste cools and solidifies, it is necessary to manually polish and grind the metal waste on the workpiece after welding. However, the metal waste overflowing during the pressure friction welding of the workpiece will cause the gap between the two workpieces to become hollow, and after cooling, polishing and grinding, the weld of the workpiece will have pits and concave holes.

[0004] Regarding the use of friction welding machines, how to prevent the gap between two tightly pressed workpieces from causing pits in the weld due to the obstruction of overflowing metal waste, while improving the operator's intuitive observation of the welding status of the end faces of the two workpieces, is the technical difficulty that the present invention needs to solve. Summary of the invention

[0005] The present invention aims to solve one of the technical problems existing in the prior art or related technology.

[0006] To this end, the technical solution adopted in the present invention is:

[0007] A friction welding machine comprises a load-bearing mechanism, a transmission mechanism installed on the load-bearing mechanism and a friction welding mechanism installed on the transmission mechanism, the load-bearing mechanism comprises a base, two auxiliary columns installed on one side of the top of the base, a main column installed on the other side of the top of the base, a main hydraulic component connected to the main column, two protective pads respectively installed on the tops of the two auxiliary columns by bolts, a traction member movably connected to the main hydraulic component and penetrating the inner sides of the two protective pads, a fastener installed in the middle of the two protective pads and a scraper fixed in the fastener by an insertion rod, the transmission mechanism comprises two outer frames penetrating the two protective pads and connected to the traction member, a vertical plate installed on one outer frame, a driving assembly installed on the other outer frame and a plurality of external frames connected to the two external frames. Two restraining springs connected to the two outer frames, two auxiliary hydraulic rods movably installed on the two outer frames, a first shaft rod movably installed in the driving assembly, a second shaft rod movably installed in the vertical plate, an auxiliary sleeve movably installed on the adjacent ends of the first shaft rod and the second shaft rod, and two extended crawlers transmitted to the first shaft rod and the second shaft rod. The friction welding mechanism includes two beams movably installed in the two outer frames, a compression spring connected to the other end of the beam, a plurality of pads installed on the inner ends of the beams by bolts, a splint movably installed on the pads, a positioning ring buckle movably installed on the beam, a plurality of pull rods installed in the positioning ring buckle by bolts, a clip movably installed at one end of the beam, and an elastic telescopic member connected between the pad and the splint.

[0008] In a preferred example, the present invention can be further configured as follows: a horizontal hole is opened in the horizontal plate at the top of the main column, and two bolts fixed to the main hydraulic component are installed on the top of the horizontal plate, and a U-shaped clamp is installed on the outer end of the hydraulic sub-rod in the main hydraulic component.

[0009] By adopting the above technical solution, the main hydraulic component is installed in the horizontal plate on the top of the main column by bolts. At this time, the fixed main hydraulic component can stably pull the combined traction component, and the two ends of the traction component can simultaneously extend and contract along the inner cavities of the two protective pads.

[0010] In a preferred example, the present invention can be further configured as follows: a flat slot is provided inside the protective pad to guide the outer frame to extend freely.

[0011] By adopting the above technical solution, the two end rods in the two outer frames are respectively inserted into the flat slots inside the two protective pads. At this time, the two end rods movably connected at both ends of the traction part can cooperate with the freely extending main hydraulic parts to reciprocate and extend, and the two beams constrained in the two outer frames can simultaneously drive the two clamped workpieces to fit and press in the same direction.

[0012] In a preferred example, the present invention can be further configured as follows: a rectangular end tube is installed at the outer end of the fastener, a rectangular slider at the inner end of the scraper is adapted to penetrate into the rectangular end tube, and a plurality of vertical holes distributed at equal intervals are opened on the top of the scraper.

[0013] By adopting the above technical solution, the length of the scraper extending along the rectangular end tube is controlled by the insertion rod. When the diameters of two adjacent workpieces are different, the operator can adjust the insertion rod to control the blade head at the outer end of the scraper to clamp and cut the gap between the two compressed workpieces.

[0014] In a preferred example, the present invention can be further configured as follows: the outer frame is composed of end rods, cross tubes and partitions, and a clamp is installed at the outer end of the end rod.

[0015] By adopting the above technical solution, the beam rod is positioned and constrained in the transverse tube inside the outer frame by using the restraining spring. As the two outer frames approach each other and move away from each other, the beam rod compressed by the restraining spring can drive the workpiece to move laterally while performing normal high-speed rotation.

[0016] In a preferred example, the present invention can be further configured as follows: the driving assembly is composed of a vertical plate, a chassis, a motor and a short crawler, and the other end of the short crawler is driven by the first shaft.

[0017] By adopting the above technical solution, the motor is installed in the chassis, and the motor shaft and the first shaft are jointly driven in conjunction with the short crawler. When the motor is started and running, the first shaft driven by the short crawler will cooperate with the spliced ​​auxiliary sleeve and the second shaft to drive the two extended crawlers to rotate, and the two driven beams can drive the two clamped workpieces to fit and press tightly on both sides of the external fixed plate.

[0018] In a preferred example, the present invention can be further configured as follows: a transverse groove is provided on one side of the cushion block, a plurality of rubber pads are installed on the inner side of the splint, and a clamp is installed on the other side of the splint, the elastic telescopic part is composed of a telescopic mother tube, a telescopic sub-rod and a spring, and the spring is connected to the inner cavity of the telescopic mother tube, and the end column at the bottom of the telescopic sub-rod passes through the telescopic mother tube.

[0019] By adopting the above technical scheme, the telescopic main tube and the telescopic sub-rod in the elastic telescopic part are flexibly connected to the pad and the clamp respectively, and the spring elastically supports the telescopic sub-rod. At this time, the multiple pads and the clamp fixed on the inner end of the beam by multiple bolts can be adaptively clamped and fixed to the outer surface of the workpiece to ensure that the device can clamp workpieces of different diameters. With the flexible connection of the telescopic main tube to the pad, and the flexible connection of the telescopic sub-rod to the clamp, when the clamp is compressed to clamp the workpiece, the elastic telescopic part can provide it with elastic potential energy for reset. When the external force of the clamp is removed, the elastic telescopic part can prompt the clamp to quickly restore its initial state, so as to facilitate the subsequent clamping operation of the workpiece.

[0020] By adopting the above technical solution, the beneficial effects achieved by the present invention are:

[0021] 1. The present invention uses multiple bolts to install circumferentially distributed pads on the end of the beam away from the buckle, and movably installs a clamping plate and an elastic telescopic member that can tighten and clamp the surface of the workpiece on the pad, and movably installs a compression spring that can push multiple pull rods in the annular groove outside the beam. When the main hydraulic component drives the traction component to extend, the two external frames connected by the traction component can drive the two constrained beams and the two clamped workpieces to be close and compressed, and the fasteners installed in the middle of the two protective pads can cooperate with the insertion rod to control the extension of the scraper. At this time, the scraper head can cut off the metal waste overflowing from the gap between the two workpieces after compression, thereby avoiding the formation of irregular holes in the weld due to the cooling of the overflowing metal layer by layer at the weld of the workpiece.

[0022] 2. The present invention installs a vertical plate and a driving assembly at the bottom of two outer frames, installs a motor and a short crawler in the driving assembly, and movably installs a horizontally and symmetrical first shaft rod and a second shaft rod at the bottom of the vertical plate and the driving assembly respectively. At this time, the first shaft rod and the second shaft rod movably clamped by the auxiliary sleeve can be freely opened and closed in coordination with the extension of the other two outer frames, and the two extended crawlers driven by the first shaft rod and the second shaft rod can simultaneously drive the two clamped workpieces to perform friction welding processing at the same speed along the plate in a fixed state. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the present invention when used;

[0024] Figure 2 It is a bottom view schematic diagram of the present invention;

[0025] Figure 3 It is a schematic diagram of the load-bearing mechanism of the present invention;

[0026] Figure 4 It is a schematic diagram of the transmission mechanism of the present invention;

[0027] Figure 5 For the present invention Figure 4 Schematic diagram of the internal dispersion of

[0028] Figure 6 It is a schematic diagram of the friction welding mechanism of the present invention;

[0029] Figure 7 It is a dispersed schematic diagram of the friction welding mechanism of the present invention;

[0030] Figure 8 It is a schematic diagram of the dispersion of the positioning ring buckle and the pull rod of the present invention;

[0031] Fig. 9 It is a schematic diagram of the dispersion of the cushion blocks of the present invention.

[0032] Reference numerals:

[0033] 100, load-bearing mechanism; 110, base; 120, main column; 130, auxiliary column; 140, main hydraulic component; 150, protective pad; 160, traction component; 170, fastener; 180, scraper;

[0034] 200, transmission mechanism; 210, outer frame; 220, vertical plate; 230, driving assembly; 240, auxiliary hydraulic rod; 250, restraining spring; 260, first shaft rod; 270, second shaft rod; 280, auxiliary sleeve; 290, extended crawler track;

[0035] 300, friction welding mechanism; 310, beam; 320, compression spring; 330, positioning ring; 340, pull rod; 350, cushion block; 360, splint; 370, elastic telescopic member; 380, buckle. DETAILED DESCRIPTION

[0036] To make the purpose, technical solution and advantages of the present invention more clear, the present invention is further described in detail below in combination with specific implementations and with reference to the accompanying drawings. It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

[0037] It is to be understood that these descriptions are exemplary only and are not intended to limit the scope of the invention.

[0038] A friction welding machine provided by some embodiments of the present invention will be described below in conjunction with the accompanying drawings. Embodiment 1:

[0039] Combination Figure 1-Figure 9 As shown, a friction welding machine provided by the present invention includes a load-bearing mechanism 100 , a transmission mechanism 200 installed on the load-bearing mechanism 100 , and a friction welding mechanism 300 installed on the transmission mechanism 200 .

[0040] The load-bearing mechanism 100 includes a base 110, a main column 120, a secondary column 130, a main hydraulic component 140, a protective pad 150, a traction component 160, a fastener 170 and a scraper 180. The transmission mechanism 200 includes an outer frame 210, a vertical plate 220, a drive assembly 230, an auxiliary hydraulic rod 240, a restraining spring 250, a first shaft rod 260, a second shaft rod 270, an auxiliary sleeve 280 and an extended track 290. The friction welding mechanism 300 includes a beam rod 310, a compression spring 320, a positioning ring buckle 330, a pull rod 340, a cushion block 350, a splint 360, an elastic telescopic component 370 and a buckle 380.

[0041] Specifically, the two auxiliary columns 130 are installed on one side of the top of the base 110, the main column 120 is installed on the other side of the top of the base 110, the main hydraulic component 140 is connected to the main column 120, the two protective pads 150 are respectively installed on the top of the two auxiliary columns 130 by bolts, the traction component 160 is movably connected to the main hydraulic component 140 and penetrates to the inner side of the two protective pads 150, the fastener 170 is installed in the middle of the two protective pads 150, the scraper 180 is fixed in the fastener 170 by a plug rod, the two outer frames 210 penetrate into the two protective pads 150 and are connected to the traction component 160, the vertical plate 220 is installed on one outer frame 210, the drive assembly 230 is installed on the other outer frame 210, the two restraining springs 250 are respectively connected to the two outer frames 210, and the two auxiliary hydraulic rods 240 are movably installed on the two On an outer frame 210, the first shaft rod 260 is movably installed in the driving assembly 230, the second shaft rod 270 is movably installed in the vertical plate 220, the auxiliary sleeve 280 is movably installed on the adjacent ends of the first shaft rod 260 and the second shaft rod 270, the two extended crawlers 290 are transmitted to the first shaft rod 260 and the second shaft rod 270, the two beams 310 are movably installed in the two outer frames 210, the compression spring 320 is connected to the other end of the beam 310, a plurality of pads 350 are installed on the end of the inner end of the beam 310 by bolts, the splint 360 is movably installed on the pad 350, the positioning ring buckle 330 is movably installed on the beam 310, a plurality of pull rods 340 are installed in the positioning ring buckle 330 by bolts, the buckle 380 is movably installed at one end of the beam 310, and the elastic telescopic member 370 is connected between the pad 350 and the splint 360.

[0042] By installing a vertical plate 220 and a driving assembly 230 at the bottom of the two outer frames 210, installing a motor and a short crawler in the driving assembly 230, and movably installing a horizontal and symmetrical first shaft rod 260 and a second shaft rod 270 at the bottom of the vertical plate 220 and the driving assembly 230, respectively, the first shaft rod 260 and the second shaft rod 270 movably clamped by the auxiliary sleeve 280 can be freely opened and closed in coordination with the extension of the other two outer frames 210, and a compression spring 330 that can push a plurality of pull rods 340 is movably installed in the annular groove outside the beam 310 20. When the main hydraulic component 140 drives the traction component 160 to extend, the two outer frames 210 connected to the traction component 160 can drive the two constrained beams 310 and the two clamped workpieces to be close and pressed, and the fasteners 170 installed in the middle of the two protective pads 150 can cooperate with the insertion rod to control the extension of the scraper 180. At this time, the blade head of the scraper 180 can cut off the metal waste overflowing from the gap between the two workpieces after pressing, thereby avoiding the formation of irregular holes in the weld of the workpiece due to the cooling of the overflowing metal layer by layer. Embodiment 2:

[0043] Combination Figure 3 and Figure 4 As shown, on the basis of embodiment one, a horizontal hole is opened in the horizontal plate at the top of the main column 120, and two bolts fixed to the main hydraulic component 140 are installed on the top of the horizontal plate, a U-shaped clamp is installed on the outer end of the hydraulic sub-rod in the main hydraulic component 140, and a flat slot hole is opened inside the protective pad 150 to guide the outer frame 210 to stretch freely.

[0044] The main hydraulic component 140 is installed in the horizontal plate at the top of the main column 120 by bolts. The fixed main hydraulic component 140 can stably pull the assembled traction component 160, and the two ends of the traction component 160 can respectively extend and contract simultaneously along the inner cavity of the two protective pads 150. At the same time, the two end rods in the two outer frames 210 are respectively inserted into the flat slots inside the two protective pads 150. The two end rods movably connected at both ends of the traction component 160 can cooperate with the freely extended main hydraulic component 140 to reciprocate and extend. The two beams 310 constrained in the two outer frames 210 can simultaneously drive the two clamped workpieces to fit and press in the same direction. Embodiment three:

[0045] Combination Figure 3-Figure 5As shown, on the basis of Example 1, a rectangular end tube is installed on the side of the fastener 170 away from a protective pad 150, and a rectangular slider is installed on the side of the scraper 180 close to the fastener 170, and the rectangular slider at the inner end of the scraper 180 is adapted to pass through the rectangular end tube, and the insertion rod located directly above the fastener 170 will pass through the interior of the rectangular end tube and be inserted into the rectangular slider, and a plurality of vertical holes distributed at equal intervals are opened on the top of the scraper 180, and the driving assembly 230 is composed of a vertical plate, a chassis, a motor and a short crawler, and the other end of the short crawler is driven by the first shaft 260.

[0046] The motor shaft and the first shaft 260 are jointly driven in conjunction with the short track. When the motor starts and runs, the first shaft 260 driven by the short track will cooperate with the spliced ​​auxiliary sleeve 280 and the second shaft 270 to drive the two extended tracks 290 to rotate. The two driven beams 310 can drive the two clamped workpieces to fit and press them tightly on both sides of the external fixed plate. Combined with the insertion rod to control the length of the scraper 180 extending along the rectangular end tube, when the diameters of two adjacent workpieces are different, the operator can adjust the insertion rod to control the blade head at the outer end of the scraper 180 to clamp and cut the gap between the two pressed workpieces. Embodiment 4:

[0047] Combination Figure 6-Figure 9 As shown, on the basis of embodiment one, the outer frame 210 is composed of end rods, cross tubes and partitions, and a chuck is installed on the outer end of the end rod, a cross groove is opened on one side of the cushion block 350, a plurality of rubber pads are installed on the inner side of the splint 360, and a clamp is installed on the other side of the splint 360, the elastic telescopic member 370 is composed of a telescopic mother tube, a telescopic sub-rod and a spring, and the spring is connected in the inner cavity of the telescopic mother tube, and the end column at the bottom of the telescopic sub-rod passes through the telescopic mother tube.

[0048] The beam rod 310 is positioned and restrained in the transverse tube in the outer frame 210 by the restraining spring 250. As the two outer frames 210 approach each other and move away from each other, the beam rod 310 compressed by the restraining spring 250 will drive the workpiece to move horizontally. At the same time, the telescopic mother tube and the telescopic sub-rod in the elastic telescopic member 370 are movably connected to the cushion block 350 and the clamping plate 360 ​​respectively. With the elastic support of the telescopic sub-rod by the spring, the multiple cushion blocks 350 and the clamping plate 360 ​​fixed on the inner end of the beam rod 310 by multiple bolts can be adaptively clamped and fixed to the outer surface of the workpiece, so as to ensure that the device can clamp workpieces of different diameters.

[0049] In conjunction with the movable connection of the telescopic main tube to the pad 350, and combined with the movable connection of the telescopic sub-rod to the splint 360, when the splint 360 is compressed to clamp the workpiece, the elastic telescopic part 370 can provide it with elastic potential energy for restoration. When the external force of the splint 360 is removed, the elastic telescopic part 370 can prompt the splint 360 to quickly restore its initial state, so as to facilitate the subsequent clamping operation of the workpiece.

[0050] The working principle and use process of the present invention are as follows: the inner end of the splint 360 is pre-movably installed in the horizontal groove on one side of the cushion block 350, and then the cushion block 350 is connected to the splint 360 by using the combined elastic telescopic member 370, and then the clamp outside the splint 360 is connected to the positioning ring buckle 330 by using multiple tie rods 340. At this time, the positioning ring buckle 330 and the cushion block 350 can be installed on the beam 310 through multiple sets of bolts. At this time, one end of the tie rod 340 is movably installed in the clamp outside the splint 360, and the other end of the tie rod 340 is movably installed in the groove outside the positioning ring buckle 330. When the positioning ring buckle 330 is forced to extend outward along the beam 310, the multiple splints 360 distributed in a circle can be connected by multiple tie rods 340 applies a thrust, at which time the multiple clamps 360 will clamp the workpiece. When the positioning ring buckle 330 returns to its initial state, the multiple clamps 360 will lose the external force. At this time, the elastic potential energy generated in the elastic telescopic member 370 will prompt the clamps 360 to return to their initial state, and the buckle 380 is movably installed on the end of the beam 310 away from the cushion block 350. Then the beam 310 is movably installed in the cross tube on one side of the outer frame 210. At this time, the restraining spring 250 connected to the outside of the outer frame 210 can pressurize and clamp the gasket at one end of the beam 310 close to the buckle 380. Then the vertical plate 220 and the driving assembly 230 are respectively installed on the two outer frames 210, and the outsides of the two outer frames 210 are respectively connected to two buckles that can be connected to the two buckles The auxiliary hydraulic rod 240 on the outer frame 210 is movably installed in the auxiliary hydraulic rod 240, and the hydraulic mother rod in the auxiliary hydraulic rod 240 is movably installed in the outer frame 210, and the hydraulic sub-rod is movably installed in the buckle 380. When the auxiliary hydraulic rod 240 runs and drives the buckle 380 to perform local fine-tuning, the horizontal buckle 380 can adjust the calibration of the beam rod 310 and the two sides of the external plate, and the bottom ends of the vertical plate 220 and the driving assembly 230 are respectively movably installed with the second shaft rod 270 and the first shaft rod 260 which are symmetrically distributed, and the adjacent two ends of the second shaft rod 270 and the first shaft rod 260 are movably assembled by the auxiliary sleeve 280. At this time, the short crawler belt connected to the motor shaft rod in the driving assembly 230 is transmitted to the first shaft rod 260, and the two extended crawler belts 290 will respectively move the second shaft rod 270 and the first shaft rod 260 to the first shaft rod 260. The outer ends of the first shaft 260 and the second shaft 270 are connected to the outer ends of the two beams 310 by transmission, and then the end rods at the other ends of the two outer frames 210 are respectively inserted into the inner cavities of the two protective pads 150, and the two protective pads 150 are fixed to the end plates on the tops of the two auxiliary columns 130 by multiple bolts, and the main column 120 installed on the top of the base 110 will assemble the main hydraulic component 140, and the outer end of the hydraulic sub-rod in the main hydraulic component 140 will be movably installed on the end head in the middle of the combined traction component 160, and the scraper 180 movably installed in the rectangular sleeve outside the fastener 170 will cooperate with the fixation of the plug rod, and then pressurize and fit the gap between the two clamped workpieces. When the motor in the drive assembly 230 is started and operated,At this time, the rotation of the short crawler driven by the shaft at the outer end of the motor can drive the first shaft 260, the auxiliary sleeve 280 and the second shaft 270 to rotate. At this time, the two extended crawlers 290 driven by the first shaft 260 and the second shaft 270 can drive the two adjacent beams 310 to rotate. With the operation of the main hydraulic component 140, the hydraulic sub-rod in the main hydraulic component 140 will drive the traction component 160 to extend outward, and the two outer frames 210 connected to the traction component 160 will drive the two adjacent beams 31 0 drives the two clamped workpieces to approach and fit together. As the two workpieces rotate along the two sides of the plate, and the two beams 310 are symmetrically distributed on the two sides of the clamped columnar plate, as the two beams 310 rotate synchronously and fit closely to the clamped columnar plate, the two sets of clamping plates 360 respectively installed on the two beams 310 can drive the workpieces to perform friction welding along the two sides of the columnar plate, and the blade of the scraper 180 pressed against the gap between the two workpieces can perform ring cutting of the hot melt overflowing metal waste.

[0051] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A friction welding machine, characterized in that: It comprises a load-bearing mechanism (100), a transmission mechanism (200) installed on the load-bearing mechanism (100), and a friction welding mechanism (300) installed on the transmission mechanism (200); The load-bearing mechanism (100) comprises a main hydraulic component (140), a traction component (160) movably connected to the main hydraulic component (140) and extending through the inner sides of two protective pads (150), a fastener (170) installed in the middle of the two protective pads (150), and a scraper (180) fixed in the fastener (170) by means of an insertion rod; A rectangular end tube is installed at the outer end of the fastener (170), a rectangular sliding block at the inner end of the scraper (180) is adapted to penetrate into the rectangular end tube, and a plurality of vertical holes distributed at equal intervals are opened on the top of the scraper (180); The transmission mechanism (200) comprises two outer frames (210) penetrating into the two protective pads (150) and connected to the traction member (160), a vertical plate (220) mounted on one of the outer frames (210), a driving assembly (230) mounted on the other outer frame (210), two restraining springs (250) respectively connected to the two outer frames (210), a first shaft (260) movably mounted in the driving assembly (230), a second shaft (270) movably mounted in the vertical plate (220), and an auxiliary sleeve (280) movably mounted on adjacent ends of the first shaft (260) and the second shaft (270); The outer frame (210) is composed of an end rod, a transverse tube and a partition, and a clamp is installed at the outer end of the end rod; The driving assembly (230) is composed of a vertical plate, a chassis, a motor, and a short crawler belt, and the other end of the short crawler belt is driven by the first shaft rod (260); The friction welding mechanism (300) comprises two beams (310) movably mounted in two outer frames (210), a compression spring (320) connected to the other end of the beam (310), a plurality of pads (350) mounted on the inner ends of the beams (310) by means of bolts, a clamping plate (360) movably mounted on the pads (350), a positioning ring buckle (330) movably mounted on the beam (310), and a plurality of pull rods (340) mounted in the positioning ring buckle (330) by means of bolts; When the motor in the driving assembly (230) is started and operated, the rotation of the short crawler track driven by the shaft at the outer end of the motor can drive the first shaft (260), the auxiliary sleeve (280) and the second shaft (270) to rotate. At this time, the two extended crawlers (290) driven by the first shaft (260) and the second shaft (270) can drive the two adjacent beams (310) to rotate. As the main hydraulic component (140) operates, the hydraulic sub-rod in the main hydraulic component (140) drives the traction component (160) to extend outward, and the two outer frames (210) connected to the traction component (160) drive the two adjacent beams (310) to drive the two clamped beams (310) to rotate. The workpieces are brought close to each other and fitted together. As the two workpieces rotate along the two sides of the plate, and the two beams (310) are symmetrically distributed on the two sides of the clamped columnar plate, as the two beams (310) rotate synchronously and fit closely to the clamped columnar plate, two sets of clamping plates (360) respectively mounted on the two beams (310) can drive the workpieces to be friction welded along the two sides of the columnar plate. When the diameters of two adjacent workpieces are different, the blade head at the outer end of the scraper (180) is adjusted to clamp and cut the gap between the two pressed workpieces, and the blade edge of the scraper (180) pressed and fitted outside the gap between the two workpieces can cut the metal waste overflowed by the hot melt.

2. A friction welding machine according to claim 1, characterized in that: The load-bearing mechanism (100) comprises a base (110), two auxiliary columns (130) installed on one side of the top of the base (110), and a main column (120) installed on the other side of the top of the base (110), and two protective pads (150) are respectively installed on the top of the two auxiliary columns (130) by means of bolts.

3. A friction welding machine according to claim 1, characterized in that: The transmission mechanism (200) comprises two auxiliary hydraulic rods (240) movably mounted on two outer frames (210) and two extended crawlers (290) driven on a first shaft rod (260) and a second shaft rod (270).

4. A friction welding machine according to claim 1, characterized in that: The friction welding mechanism (300) comprises a buckle (380) movably mounted on one end of the beam (310) and an elastic telescopic member (370) connected between the cushion block (350) and the clamping plate (360).

5. A friction welding machine according to claim 2, characterized in that: A transverse hole is provided in the transverse plate at the top of the main column (120), and two bolts fixed to the main hydraulic component (140) are installed on the top of the transverse plate. A U-shaped chuck is installed at the outer end of the hydraulic sub-rod in the main hydraulic component (140).

6. A friction welding machine according to claim 1, characterized in that: A flat slot hole for guiding the outer frame (210) to freely extend is provided inside the protective pad (150).

7. A friction welding machine according to claim 1, characterized in that: A transverse groove is provided on one side of the cushion block (350), a plurality of rubber pads are installed on the inner side of the clamping plate (360), and a clamp is installed on the other side of the clamping plate (360).

8. A friction welding machine according to claim 4, characterized in that: The elastic telescopic member (370) is composed of a telescopic mother tube, a telescopic sub-rod and a spring, wherein the spring is connected to the inner cavity of the telescopic mother tube, and the end column at the bottom of the telescopic sub-rod penetrates into the telescopic mother tube.

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