Automatic pipe feeding equipment for automobile machining

Abstract

The invention provides automatic pipe feeding equipment for automobile machining, and belongs to the technical field of equipment for automobile machining. The automatic pipe feeding equipment comprises a feeding arm, and a pipe grabbing module is arranged at the upper end of the feeding arm; the feeding arm comprises a shell, one side of one end of the first rotating arm is connected with a rotating part of a second motor, one side of one end of the second rotating arm is connected with a rotating part of a third motor, and one side of one end of the third rotating arm is connected with a rotating part of a fourth motor; the pipe grabbing module comprises a connecting support fixedly connected with the third rotating arm and a pair of grabbing pieces installed on the connecting support in a mirror image mode, and arch-shaped pieces are installed on the opposite sides of the grabbing pieces. A traction unit is arranged between the arch-shaped piece and the grabbing piece. The arch-shaped piece and the grabbing piece are connected through a connecting unit. The problems that when existing automatic pipe feeding equipment for automobile machining is used for feeding, safe transferring of pipes cannot be guaranteed, and meanwhile machining equipment cannot be prevented from being damaged are solved.

Description

Technical Field

[0001] The invention belongs to the technical field of automobile processing equipment, and in particular relates to an automatic pipe feeding equipment used for automobile processing. Background Art

[0002] With the development of economy and the progress of society, cars are an indispensable means of transportation in people's daily life. Cars need to go through forging, casting, welding, cutting and other processes during processing. When processing pipes, feeding equipment is needed to grab the pipes to the corresponding processing position for processing.

[0003] The existing automatic pipe feeding equipment used for automobile processing grabs the pipe and moves it to the processing position during feeding. The grabbing process easily causes scratches or damage to the pipe or the processing equipment, which cannot ensure the safe transfer of the pipe and cannot avoid damage to the processing equipment. Summary of the invention

[0004] The present invention provides an automatic tube feeding device for automobile processing, which aims to solve the problem that the existing automatic tube feeding device for automobile processing grabs the tube and moves it to the processing position during feeding, and then easily causes scratches or damage to the tube or the processing equipment during the grabbing process, and cannot ensure the safe transfer of the tube, and cannot avoid damage to the processing equipment.

[0005] The embodiment of the present invention provides an automatic tube feeding device for automobile processing, comprising a feeding arm, and a tube grabbing module is installed at the upper end of the feeding arm;

[0006] The loading arm includes a shell, wherein a motor 1 is installed inside the shell, a rotating portion of the motor 1 extends out of the shell and is fixedly connected to a rotating support, the rotating support is screwed onto a rotating arm 1, a side wall of the rotating support is fixedly connected to a motor 2, one side of one end of the rotating arm 1 is connected to the rotating portion of the motor 2, the other end of the rotating arm 1 is screwed onto a rotating arm 2, a side wall of the other end of the rotating arm 1 is fixedly connected to a motor 3, one side of one end of the rotating arm 2 is connected to the rotating portion of the motor 3, the other end of the rotating arm 2 is screwed onto a rotating arm 3, a side wall of the other end of the rotating arm 2 is fixedly connected to a motor 4, and one side of one end of the rotating arm 3 is connected to the rotating portion of the motor 4;

[0007] The pipe grabbing module comprises a connection support fixedly connected to the rotating arm and a pair of grabbing pieces mirror-mounted on the connection support, and an arched piece is mounted on one side of the pair of grabbing pieces facing each other, and the arched piece is used to grab the pipe;

[0008] A traction unit is arranged between the arched piece and the grabbing piece, and the traction unit is used to pull a pair of arched pieces to firmly grab the pipe;

[0009] The arched piece and the grabbing piece are connected via a connection unit, a pair of grabbing pieces are unfolded, and the arched pieces are pulled by the connection unit to move downward along the grabbing piece, thereby moving the pipe downward.

[0010] Further, the connection unit comprises a pair of first connection rods which are rotatably connected to one side of the arch-shaped piece via a swivel bearing, a variable platform is arranged on one side of the grabbing piece, one side of the variable platform is rotatably connected to a pair of identical first connection rods via a swivel bearing, and a connection strip is correspondingly fixedly connected between the pair of first connection rods and the pair of first connection rods on the arch-shaped piece, the pair of connection strips are arranged opposite to each other, and the angle between the connection strip and the grabbing piece is less than ninety degrees;

[0011] The traction unit includes a guide rod fixedly connected to the grabbing piece, a hoop tube is clamped on the outer circumference of the guide rod, one side of the hoop tube is fixedly connected to a changing rod, and one end of the arched piece is fixedly connected to an outer tube, and the outer surface of one end of the changing rod is clamped on the outer tube. Compared with the changing arched piece of the changing platform, the traction hoop tube changes.

[0012] Furthermore, a first spiral beryllium copper wire is clamped on the outer circumference of the guide rod, and both ends of the first spiral beryllium copper wire are respectively in close contact with the clamp tube and the grabbing piece, and the clamp tube is moved, and the first spiral beryllium copper wire is pressed at this time, so that the clamp tube can provide a self-returning function;

[0013] The grabbing piece is fixedly connected with a guide rod, and the guide rod can move through the changing platform to constrain and guide the change of the changing platform;

[0014] A transmission unit is arranged between the pair of moving tables. When the pair of grabbing pieces are pulled to grab the pipe, one of the arched pieces touches the pipe first, and then the transmission unit pulls the other arched piece to move toward the grabbing piece and approach the pipe, until the pair of arched pieces touch the pipe together.

[0015] Furthermore, the transmission unit includes a filling pipe fixedly connected to the grabbing piece, a pair of the filling pipes are connected via a channel, hydraulic transmission oil is installed in the channel and the pair of filling pipes, a rubber table is movably installed in the filling pipe, a compression bar is fixedly connected between the rubber table and the variable table, a second spiral beryllium copper wire is installed between the variable table and the grabbing piece, two ends of the second spiral beryllium copper wire are respectively tightly attached to the variable table and the grabbing piece, the grabbing piece compresses the variable table, and then the hydraulic transmission oil is added to the other filling pipe to compress the other variable table to change, and the second spiral beryllium copper wire is compressed and shortened to provide it with self-recovery function.

[0016] Furthermore, a movable piece is movably mounted on the grabbing piece, and a movable unit is mounted between the movable piece and the arched piece, and the movable piece is moved to pull the arched piece to be moved back;

[0017] A track is arranged on the connecting support. After the pipe is placed, the moving piece is pulled to move along the track and then tightened while the grabbing piece is opened.

[0018] Furthermore, the variable unit comprises a restraint rod fixedly connected to the hoop tube, the restraint rod is fixedly connected to the variable plate, the variable plate is fixedly connected to a second variable rod, and the second variable rod is movably connected to a grabbing plate to guide and restrain the movement of the variable plate.

[0019] Furthermore, the track includes an assembly block mounted on the connecting support, a first groove passing through the assembly block is reserved on the assembly block, a second groove connected to one end of the first groove is reserved on the assembly block, the second groove is tilted, a slope is installed at one end of the second groove, a variable seat is movably installed on the second variable rod, a round table is installed on one side of the variable seat, an adjustment column is fixedly connected between the round table and the variable seat, a third spiral beryllium copper wire is connected to the adjustment column at both ends and tightly attached to the round table and the variable seat, the grabbing piece is untied, the round table is pulled to the first groove, and then the round table is pressed to change through the slope, and the third spiral beryllium copper wire is shortened, and then the round table is constrained, and then the round table is pressed to change upward through the slope on the second groove to change the variable piece;

[0020] The assembly block is provided with a third groove parallel to the first groove. The third groove passes through the assembly block. The third groove is connected to the other end of the second groove. The truncated table is moved along the second groove. When the truncated table moves into the third groove, it returns to its original position through the third spiral beryllium copper wire, and the constraint on the truncated table is cancelled. Then the truncated table is stuck in the third groove, and then the grabbing piece is pulled to grab the pipe, and the truncated table moves along the third groove.

[0021] One end of the third channel is an open frame, a separation unit is mounted on the variable seat, the truncated table moves away from the third channel and moves away from the assembly block through the separation unit.

[0022] Furthermore, the separation unit includes a fourth spiral beryllium copper wire installed on one side of the variable seat, and the two ends of the fourth spiral beryllium copper wire are respectively fixedly connected to the variable seat and the variable plate. The fourth spiral beryllium copper wire is shortened along the second groove variable truncated table, providing a self-recovery effect thereon.

[0023] Furthermore, the connecting support is rotatably connected to the second connecting rod via a slewing bearing, and the second connecting rod is fixedly connected to a pair of lead screws in a mirror-image manner. The rotation directions of the threads on the pair of lead screws are opposite to each other, and the pair of lead screws respectively pass through a pair of assembly blocks and are threadedly connected thereto. The connecting support is fixedly connected to a motor five, and the rotating part of the motor five is fixedly connected to one end of the second connecting rod. The connecting support is fixedly connected to a third connecting rod, and the third connecting rod can be movably connected to a pair of assembly blocks to guide and constrain the changes of the assembly blocks.

[0024] The beneficial effects of the present invention are:

[0025] The present invention pulls a pair of arched pieces to move downward along the grabbing piece through the connecting unit, moves the pipe downward, moves the pipe grabbing module to the top of the pipe, and then unfolds a pair of grabbing pieces. The arched piece is always firmly on the pipe through the return of the first spiral beryllium copper wire. The arched piece pulls the pipe downward through the connecting strip and is gradually placed on the processing device, thereby preventing the pipe from colliding with the processing device and preventing the pipe and the processing device from being damaged by collision.

[0026] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0028] Figure 1 It is a schematic diagram of the main structure of an embodiment of the present invention;

[0029] Figure 2 This is a schematic diagram of the structure of a pipe grabbing module according to an embodiment of the present invention;

[0030] Figure 3 This is a schematic diagram of the grabbing piece position structure of an embodiment of the present invention;

[0031] Figure 4 For the embodiment of the present invention Figure 3 Another perspective structural diagram of;

[0032] Figure 5 For the embodiment of the present invention Figure 4 A schematic diagram of the structure at M of FIG.

[0033] Figure 6 For the embodiment of the present invention Figure 4 A schematic diagram of a partial cross-sectional structure;

[0034] Figure 7 For the embodiment of the present invention Figure 6 A schematic diagram of a partial cross-sectional structure;

[0035] Figure 8 For the embodiment of the present invention Figure 7 A schematic diagram of the structure of the N-point method;

[0036] Fig. 9 This is a schematic diagram of the screw assembly structure of an embodiment of the present invention;

[0037] Fig.10 For the embodiment of the present invention Fig. 9 A schematic diagram of the structure at Q of FIG.

[0038] Figure numerals: 1, feeding arm; 2, pipe grabbing module; 11, shell; 12, rotating support; 13, rotating arm one; 14, motor two; 15, rotating arm two; 16, motor three; 17, rotating arm three; 18, motor four; 21, connecting support; 211, grabbing piece; 22, arched piece; 23, traction unit; 24, connecting unit; 241, first connecting rod; 242, variable platform; 243, connecting strip; 244, guide rod; 245, hoop; 246, variable rod one; 247, outer tube; 248, first spiral beryllium copper wire; 249, guide rod; 251, transmission unit; 252, Filling pipe; 253, rubber platform; 254, compression strip; 255, second spiral beryllium copper wire; 256, variable plate; 257, variable unit; 258, track; 259, restraint rod; 261, variable rod two; 262, assembly block; 263, first groove; 264, second groove; 265, slope; 266, variable seat; 267, truncated table; 268, adjustment column; 269, third spiral beryllium copper wire; 271, third groove; 272, separation unit; 273, fourth spiral beryllium copper wire; 274, second connecting rod; 275, lead screw; 276, motor five; 277, third connecting rod. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solution and advantages of the technical solution of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described in conjunction with the drawings of specific embodiments of the present invention. The same figure marks in the drawings represent the same parts. It should be noted that the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] Reference Figure 1-Figure 10 The embodiment of the present invention provides an automatic tube feeding device for automobile processing, comprising a feeding arm 1, and a tube grabbing module 2 is installed at the upper end of the feeding arm 1.

[0041] Reference Figure 1The loading arm 1 includes a shell 11, and a motor 1 is installed inside the shell 11. The rotating part of the motor 1 extends out of the shell 11 and is fixedly connected to a rotating support 12. A rotating arm 13 is screwed onto the rotating support 12. A motor 2 14 is fixedly connected to the side wall of the rotating support 12. One side of one end of the rotating arm 13 is connected to the rotating part of the motor 2 14. The other end of the rotating arm 13 is screwed onto a rotating arm 2 15. A motor 3 16 is fixedly connected to the side wall of the other end of the rotating arm 13. One side of one end of the rotating arm 2 15 is connected to the rotating part of the motor 3 16. The other end of the rotating arm 2 15 is screwed onto a rotating arm 3 17. A motor 4 18 is fixedly connected to the side wall of the other end of the rotating arm 2 15. One side of one end of the rotating arm 3 17 is connected to the rotating part of the motor 4 18.

[0042] Motor 1, motor 2 14, motor 3 16 and motor 4 18 are all controlled by an external control system.

[0043] When grabbing the pipe to perform loading, the external control system controls the actions of motor 1, motor 2 14, motor 3 16 and motor 4 18 to adjust the angle and height of the pipe grabbing module 2, and then the pipe is grabbed by the pipe grabbing module 2 to realize the loading of the pipe.

[0044] Reference Figure 2-Figure 8 The pipe grabbing module 2 includes a connecting support 21 fixedly connected to the rotating arm 3 17 and a pair of grabbing pieces 211 mirror-mounted on the connecting support 21, and an arched piece 22 is mounted on one side opposite to the pair of grabbing pieces 211, and the arched piece 22 is used to grab the pipe;

[0045] A traction unit 23 is arranged between the arched piece 22 and the grabbing piece 211, and the traction unit 23 is used to pull a pair of arched pieces 22 to firmly grab the pipe;

[0046] The arched piece 22 and the grabbing piece 211 are connected via the connecting unit 24. A pair of grabbing pieces 211 are unfolded, and the pair of arched pieces 22 are pulled downward along the grabbing piece 211 via the connecting unit 24 to move the pipe downward, and the pipe grabbing module 2 is moved above the pipe. Then, a pair of grabbing pieces 211 are unfolded, and the arched piece 22 is returned to its original position via the first spiral beryllium copper wire 248 to keep the arched piece 22 firmly on the pipe. The arched piece 22 pulls the pipe downward via the connecting strip 243 and is gradually placed on the processing device, thereby preventing the pipe from colliding with the processing device and preventing the pipe and the processing device from being damaged by collision.

[0047] The connecting unit 24 includes a pair of first connecting rods 241 connected to one side of the arched sheet 22 via a swivel bearing. A variable platform 242 is installed on one side of the grabbing sheet 211. A pair of identical first connecting rods 241 are connected to one side of the variable platform 242 via a swivel bearing. A connecting strip 243 is fixedly connected between the pair of first connecting rods 241 and the pair of first connecting rods 241 on the arched sheet 22. The pair of connecting strips 243 are arranged opposite to each other, and the angle between the connecting strip 243 and the grabbing sheet 211 is less than 90 degrees. When the grabbing sheet 211 is released, the pipe will still be closely attached to the arched sheet 22 through the blocking effect and move downward together.

[0048] One side of the arched piece 22 is fixedly connected to the wedge-shaped platform, and the offset connecting strip 243 is stopped by the wedge-shaped platform.

[0049] The traction unit 23 includes a guide rod 244 fixedly connected to the grabbing sheet 211, a hoop tube 245 is clamped on the outer circumference of the guide rod 244, one side of the hoop tube 245 is fixedly connected to a variable rod 1 246, and one end of the arched sheet 22 is fixedly connected to an outer tube 247, and the outer surface of one end of the variable rod 1 246 is clamped on the outer tube 247. Compared with the change of the arched sheet 22 by the change platform 242, the traction hoop tube 245 changes;

[0050] A first spiral beryllium copper wire 248 is clamped on the outer circumference of the guide rod 244. Both ends of the first spiral beryllium copper wire 248 are tightly attached to the clamp tube 245 and the grabbing piece 211 respectively. The clamp tube 245 is moved, and the first spiral beryllium copper wire 248 is pressed at this time to allow the clamp tube 245 to provide a self-returning function.

[0051] The grabbing piece 211 is fixedly connected with a guide rod 249, and the guide rod 249 can move through the changing platform 242 to constrain and guide the change of the changing platform 242;

[0052] A transmission unit 251 is installed between the pair of moving tables 242. When the pair of grabbing pieces 211 are pulled to grab the pipe, one of the arched pieces 22 first touches the pipe, and then the transmission unit 251 pulls the other arched piece 22 toward the grabbing piece 211 to move closer to the pipe until the pair of arched pieces 22 touch the pipe together. When the grabbing piece 211 grabs the pipe, there are two situations:

[0053] Scenario 1: The middle of the pipe overlaps the middle of the pair of grabbing pieces 211. At this moment, when the pair of grabbing pieces 211 are pulled to move together, the pair of arched pieces 22 touch the pipe together and tighten it. During this period, the pipe and the processing device will not be worn, thereby preventing the pipe and the processing device from being damaged.

[0054] Scenario 2: Due to the accuracy of the feeding device, the middle of the pipe deviates from the center between the pair of grabbing pieces 211. At this moment, when the pair of grabbing pieces 211 are pulled to move together, one of the arched pieces 22 touches one end of the pipe first. At this moment, the grabbing piece 211 is pulled to move, so that the arched piece 22 that touches the pipe first moves toward the corresponding grabbing piece 211, and then the hydraulic transmission oil presses the arched piece 22 on the other side to move toward the pipe again, thereby preventing wear between the pipe and the processing device.

[0055] The transmission unit 251 includes a filling pipe 252 fixedly connected to the grabbing piece 211. The pair of filling pipes 252 are connected via a channel. Hydraulic transmission oil is installed in the channel and the pair of filling pipes 252. A rubber platform 253 is movably installed in the filling pipe 252. A pressing bar 254 is fixedly connected between the rubber platform 253 and the variable platform 242. A second spiral beryllium copper wire 255 is installed between the variable platform 242 and the grabbing piece 211. The second spiral beryllium copper wire The two ends of 255 are respectively in close contact with the variable platform 242 and the grabbing piece 211. The grabbing piece 211 presses the variable platform 242, and then the hydraulic transmission oil is added to another filling pipe 252 to press the other variable platform 242 to change, and the second spiral beryllium copper wire 255 is compressed and shortened to provide a self-recovery function, and then during the grabbing and feeding of the pipe, the second spiral beryllium copper wire 255 can return to its original position to move the pipe to the middle.

[0056] A movable piece 256 is movably mounted on the grabbing piece 211, and a movable unit 257 is mounted between the movable piece 256 and the arched piece 22. The movable piece 256 is moved to pull the arched piece 22 to be moved back.

[0057] A track 258 is installed on the connecting support 21. After the pipe is placed, while the grabbing piece 211 is opened, the moving piece 256 is pulled to move along the track 258 and then tightened. After the grabbing piece 211 releases the pipe, the grabbing piece 211 is opened, which can pull a pair of arched pieces 22 to move back to their original positions and allow them to be tightened. Then, when the grabbing piece 211 is pulled to grab the pipe, there is no need to press the arched piece 22 back to its original position through the pipe, so as to prevent it from wearing out with the pipe and causing damage to each other.

[0058] The variable unit 257 includes a restraining rod 259 fixedly connected to the hoop tube 245, the restraining rod 259 is fixedly connected to the variable plate 256, the variable plate 256 is fixedly connected to a second variable rod 261, and the second variable rod 261 is movably connected to the grabbing plate 211 to guide and restrain the movement of the variable plate 256.

[0059] The track 258 includes an assembly block 262 mounted on the connecting support 21, a first groove 263 passing through the assembly block 262 is reserved on the assembly block 262, a second groove 264 connected to one end of the first groove 263 is reserved on the assembly block 262, the second groove 264 is tilted, and a slope 265 is installed at one end of the second groove 264, a variable seat 266 is movably installed on the variable rod 261, a round table 267 is installed on one side of the variable seat 266, and an adjusting column is fixedly connected between the round table 267 and the variable seat 266 268, the third spiral beryllium copper wire 269 with two ends tightly attached to the round table 267 and the variable seat 266 is hooped on the adjusting column 268, the grabbing piece 211 is untied, the round table 267 is pulled to be stuck in the first groove 263, and then the round table 267 is pressed to change through the slope 265, and the third spiral beryllium copper wire 269 is shortened, and then the round table 267 is constrained, and then the slope 265 on the second groove 264 is used to press the round table 267 to move upward, so that the variable piece 256 is moved, and the arch piece 22 is pulled to move back;

[0060] The assembly block 262 is provided with a third groove 271 which is parallel to the first groove 263. The third groove 271 passes through the assembly block 262, and the third groove 271 is connected to the other end of the second groove 264. The round table 267 moves along the second groove 264. When the round table 267 moves into the third groove 271, it returns to its original position through the third spiral beryllium copper wire 269, and the constraint on the round table 267 is cancelled. Then, the round table 267 is stuck in the third groove 271, and then the grabbing piece 211 is pulled to grab the pipe, and the round table 267 moves along the third groove 271 until the arched piece 22 touches the pipe, and the round table 267 moves away from the third groove 271.

[0061] One end of the third channel 271 is an open structure. A separation unit 272 is installed on the variable seat 266. The round table 267 moves away from the third channel 271 and moves away from the assembly block 262 through the separation unit 272.

[0062] The separation unit 272 includes a fourth spiral beryllium copper wire 273 installed on one side of the variable seat 266. The two ends of the fourth spiral beryllium copper wire 273 are respectively fixedly connected to the variable seat 266 and the variable plate 256. The fourth spiral beryllium copper wire 273 shortens the table 267 along the second groove 264 to provide a self-restoring effect. After the table 267 moves away from the third groove 271, the fourth spiral beryllium copper wire 273 returns to pull the table 267 away from the third groove 271 on the assembly block 262, thereby allowing the arched plate 22 to move automatically and work normally.

[0063] Reference Figure 2-Figure 10The second connecting rod 274 is rotatably connected to the connecting support 21 via a slewing bearing, and a pair of lead screws 275 are fixedly connected to the second connecting rod 274 in a mirror-image manner. The rotation directions of the threads on the pair of lead screws 275 are opposite to each other. The pair of lead screws 275 respectively pass through a pair of assembly blocks 262 and are threadedly connected thereto. A motor 5 276 is fixedly connected to the connecting support 21, and the motor 5 276 is controlled by an external control system. The rotating part of the motor 5 276 is fixedly connected to one end of the second connecting rod 274. A third connecting rod 277 is fixedly connected to the connecting support 21, and the third connecting rod 277 can be moved to pass through a pair of assembly blocks 262 to guide and constrain the movement of the assembly blocks 262. When the motor 5 276 runs, it pulls the second connecting rod 274 to rotate, and then pulls the lead screw 275 to rotate, and then pulls the pair of assembly blocks 262 to change, so as to change the span between the pair of assembly blocks 262, and then can grasp pipes with different spans, thereby reducing the limitations of the device.

[0064] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An automatic tube feeding device for automobile processing, characterized in that: It comprises a loading arm (1), and a pipe grabbing module (2) is installed at the upper end of the loading arm (1); The loading arm (1) comprises a shell (11), a motor 1 is arranged inside the shell (11), a rotating portion of the motor 1 extends out of the shell (11) and is fixedly connected to a rotating support (12), a rotating arm 1 (13) is screwed onto the rotating support (12), a motor 2 (14) is fixedly connected to a side wall of the rotating support (12), one side of one end of the rotating arm 1 (13) is connected to the rotating portion of the motor 2 (14), and the other side of the rotating arm 1 (13) is connected to the rotating portion of the motor 2 (14). One end is screwed to a second rotating arm (15), the side wall of the other end of the first rotating arm (13) is fixedly connected to a third motor (16), one side of one end of the second rotating arm (15) is connected to a rotating portion of the third motor (16), the other end of the second rotating arm (15) is screwed to a third rotating arm (17), the side wall of the other end of the second rotating arm (15) is fixedly connected to a fourth motor (18), and one side of one end of the third rotating arm (17) is connected to a rotating portion of the fourth motor (18); The pipe grabbing module (2) comprises a connecting support (21) fixedly connected to the rotating arm three (17) and a pair of grabbing pieces (211) mirror-mounted on the connecting support (21), and an arched piece (22) is mounted on the opposite side of the pair of grabbing pieces (211), and the arched piece (22) is used to grab the pipe; A traction unit (23) is arranged between the arched piece (22) and the grabbing piece (211), and the traction unit (23) is used to pull a pair of arched pieces (22) to firmly grab the pipe; The arched piece (22) and the grabbing piece (211) are connected via a connection unit (24). A pair of grabbing pieces (211) are unfolded, and the arched pieces (22) are pulled downward along the grabbing pieces (211) via the connection unit (24), thereby moving the pipe downward.

2. The automatic tube feeding equipment for automobile processing according to claim 1 is characterized in that: The connecting unit (24) comprises a pair of first connecting rods (241) which are rotatably connected to one side of the arched sheet (22) via a swivel bearing, a variable platform (242) is arranged on one side of the grabbing sheet (211), a pair of identical first connecting rods (241) are rotatably connected to one side of the variable platform (242) via a swivel bearing, and connecting bars (243) are correspondingly fixedly connected between the pair of first connecting rods (241) and the pair of first connecting rods (241) on the arched sheet (22), the pair of connecting bars (243) are arranged opposite to each other, and the angle between the connecting bars (243) and the grabbing sheet (211) is less than ninety degrees; The traction unit (23) comprises a guide rod (244) fixedly connected to the grabbing sheet (211); a hoop tube (245) is hooped on the outer peripheral surface of the guide rod (244); one side of the hoop tube (245) is fixedly connected to a variable rod (246); and one end of the arched sheet (22) is fixedly connected to an outer tube (247); the outer surface of one end of the variable rod (246) is hooped on the outer tube (247); compared with the variable platform (242), the arched sheet (22) is changed, and the traction hoop tube (245) changes.

3. The automatic tube feeding equipment for automobile processing according to claim 2 is characterized in that: A first spiral beryllium copper wire (248) is clamped on the outer circumference of the guide rod (244), and both ends of the first spiral beryllium copper wire (248) are tightly attached to the clamp tube (245) and the grabbing piece (211). The clamp tube (245) is moved, and the first spiral beryllium copper wire (248) is pressed at this time, so that the clamp tube (245) can provide a self-returning function; The grabbing piece (211) is fixedly connected to a guide rod (249), and the guide rod (249) can move through the variable platform (242) to constrain and guide the change of the variable platform (242); A transmission unit (251) is arranged between the pair of movable platforms (242). When the pair of grabbing pieces (211) are pulled to grab the pipe, one of the arched pieces (22) first touches the pipe, and then the other arched piece (22) is pulled by the transmission unit (251) to move toward the grabbing piece (211) and approach the pipe until the pair of arched pieces (22) touch the pipe together.

4. The automatic tube feeding equipment for automobile processing according to claim 3 is characterized in that: The transmission unit (251) comprises a filling pipe (252) fixedly connected to the grabbing piece (211), a pair of the filling pipes (252) are connected via a channel, hydraulic transmission oil is installed in the channel and the pair of filling pipes (252), a rubber platform (253) is movably installed in the filling pipe (252), a compression bar (254) is fixedly connected between the rubber platform (253) and the variable platform (242), and the variable platform (242) and the grabbing piece (211) are connected to each other. 11), the two ends of the second spiral beryllium copper wire (255) are respectively in close contact with the variable platform (242) and the grabbing piece (211), the grabbing piece (211) presses the variable platform (242), and then the hydraulic transmission oil is added to another filling pipe (252) to press the other variable platform (242) to change, and the second spiral beryllium copper wire (255) is compressed and shortened to provide a self-recovery function.

5. The automatic tube feeding equipment for automobile processing according to claim 4 is characterized in that: A movable piece (256) is movably mounted on the grabbing piece (211), and a movable unit (257) is mounted between the movable piece (256) and the arched piece (22). The movable piece (256) is moved to pull the arched piece (22) to be moved back. A track (258) is arranged on the connecting support (21). After placing the pipe, the moving plate (256) is pulled to move along the track (258) and then tightened while the grabbing plate (211) is opened.

6. The automatic tube feeding equipment for automobile processing according to claim 5 is characterized in that: The variable unit (257) includes a restraining rod (259) fixedly connected to the hoop tube (245), the restraining rod (259) and the variable plate (256) are fixedly connected to a variable rod 2 (261), and the variable rod 2 (261) and the grabbing plate (211) are movably connected to guide and restrain the movement of the variable plate (256).

7. The automatic tube feeding equipment for automobile processing according to claim 6 is characterized in that: The track (258) comprises an assembly block (262) mounted on the connecting support (21), a first groove (263) passing through the assembly block (262) is reserved on the assembly block (262), a second groove (264) connected to one end of the first groove (263) is reserved on the assembly block (262), the second groove (264) is tilted, a slope (265) is mounted on one end of the second groove (264), a variable seat (266) is movably mounted on the variable rod (261), a round platform (267) is mounted on one side of the variable seat (266), and the round platform (267) An adjusting column (268) is fixedly connected to the variable seat (266), and a third spiral beryllium copper wire (269) is hooped on the adjusting column (268) and connected to the two ends of the circular table (267) and the variable seat (266) to tightly adhere to the circular table (267). The grabbing piece (211) is untied, and the circular table (267) is pulled to be stuck in the first groove (263). Then, the circular table (267) is pressed to change through the slope (265), and the third spiral beryllium copper wire (269) is shortened. Then, the circular table (267) is constrained, and the circular table (267) is pressed to change upward through the slope (265) on the second groove (264), so as to change the variable piece (256); The assembly block (262) is provided with a third groove (271) parallel to the first groove (263). The third groove (271) passes through the assembly block (262). The third groove (271) is connected to the other end of the second groove (264). The truncated table (267) moves along the second groove (264). When the truncated table (267) moves into the third groove (271), it returns to its original position through the third spiral beryllium copper wire (269), cancels the constraint on the truncated table (267), and then allows the truncated table (267) to be stuck in the third groove (271). Then, the grabbing piece (211) is pulled to grab the pipe, and the truncated table (267) moves along the third groove (271). One end of the third channel (271) is an open structure, and a separation unit (272) is installed on the variable seat (266). The truncated table (267) moves away from the third channel (271) and moves away from the assembly block (262) through the separation unit (272).

8. The automatic tube feeding equipment for automobile processing according to claim 7 is characterized in that: The separation unit (272) includes a fourth spiral beryllium copper wire (273) installed on one side of the variable seat (266). The two ends of the fourth spiral beryllium copper wire (273) are respectively fixedly connected to the variable seat (266) and the variable plate (256). The fourth spiral beryllium copper wire (273) is shortened along the variable table (267) of the second groove (264), providing a self-recovery effect thereon.

9. The automatic tube feeding equipment for automobile processing according to claim 8, characterized in that: The connecting support (21) is rotatably connected to a second connecting rod (274) via a slewing bearing, and the second connecting rod (274) is fixedly connected to a pair of lead screws (275) in a mirror-image manner. The rotation directions of the threads on the pair of lead screws (275) are opposite to each other. The pair of lead screws (275) respectively pass through a pair of assembly blocks (262) and are threadedly connected thereto. The connecting support (21) is fixedly connected to a motor five (276), and the rotating part of the motor five (276) is fixedly connected to one end of the second connecting rod (274). The connecting support (21) is fixedly connected to a third connecting rod (277), and the third connecting rod (277) can be moved to pass through a pair of assembly blocks (262) to guide and constrain the movement of the assembly blocks (262).

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