A seamless steel pipe rod welding machine and working method

Abstract

The present invention provides a seamless steel pipe rod welding machine and a working method, belonging to the technical field of seamless steel pipe rod welding machines. The structure includes a feeding frame group, and a welding device is horizontally arranged at the left end of the feeding frame group, and a fixed end is arranged above the left end of the feeding frame group, and a positioning and feeding assembly is longitudinally arranged at the rear end of the left side of the fixed end, and an infrared sensor is arranged on the left side of the fixed end. The design of the welding device, wherein the first telescope has a two-stage rightward extension stroke function, and the welding part has an automatic switching function of welding and grinding, so that after the steel pipe rod cover plate is welded, it can be directly switched to the weld grinding function, and when the welding part is operating, the rotating assembly assists the welding part to perform a 360° reciprocating rotation function, so as to realize the welding of the entire circumference of the steel pipe rod cover plate and the grinding of the weld.

Description

Technical Field

[0001] The invention relates to a seamless steel pipe rod welding machine and a working method, belonging to the technical field of seamless steel pipe rod welding machines. Background Art

[0002] When processing the electric steel pipe pole, it is necessary to install a steel pipe pole cover to seal the top surface of the electric steel pipe pole to prevent rainwater from entering from the top surface when the electric steel pipe pole is in use, causing corrosion and rust on the electric steel pipe pole. Therefore, a welding machine is needed for electric welding.

[0003] The existing electric welding method generally adopts manual operation. During welding, it is necessary to manually put the steel pipe rod cover into the pipe mouth on the top surface of the steel pipe rod. Because the steel pipe rod cover is manually put on, it is necessary to adopt multiple suction cup clamps for auxiliary clamping and positioning, and then spot welding is used to fix the steel pipe rod cover, and then full welding is performed to seal the opening. Then, the weld needs to be polished, which is cumbersome to operate and time-consuming and labor-intensive. In view of the above shortcomings, the present invention proposes a seamless steel pipe rod welding machine and a working method. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention aims to provide a seamless steel pipe rod welding machine and a working method to solve the existing problems.

[0005] In order to achieve the above object, the present invention is implemented through the following technical scheme: a seamless steel pipe rod welding machine, the structure of which includes a feeder frame group, and a welding device is horizontally arranged at the left end of the feeder frame group, and a fixed end is arranged above the left end of the feeder frame group, a positioning and discharging assembly is longitudinally arranged at the rear end of the left side of the fixed end, and an infrared sensor is arranged on the left side of the fixed end;

[0006] The welding device comprises a main seat, and a main shaft sleeve is embedded in the middle of the main seat, and a main shaft group is movably sleeved in the main shaft sleeve, a first telescoping device is transversely arranged at the tail of the left side of the main shaft group, a rotating assembly is sleeved on the right side of the main shaft group shaft body, a welding part is transversely arranged at the upper end of the right side cavity of the rotating assembly, and a slag collecting cover is sleeved on the right peripheral edge of the rotating assembly;

[0007] The welding part includes a push seat group, and the push seat group is provided with a first telescopic end and a second telescopic end in a transversely movable sleeve at the upper and lower ends, and a rotator is connected to the middle of the left end of the push seat group in a transmission manner, a welder body is transversely arranged at the right end tail of the first telescopic end, and a grinding assembly is transversely arranged at the right end tail of the second telescopic end;

[0008] When the rotator drives the first telescopic end and the second telescopic end to rotate 180° back and forth through the push seat group, the right ends of the first telescopic end and the second telescopic end are respectively movably abutted against the right side of the upper end of the push seat group, allowing the welder body to extend to the right to weld the steel pipe rod or the grinding component to extend to the right to grind the weld of the steel pipe rod.

[0009] A further improvement is that the feeding frame group includes a frame body, and a plurality of driving rollers and a plurality of driven rollers are longitudinally spaced apart on the right side of the top surface of the frame body, and a vacuum cleaner opening is opened through the left end of the top surface of the frame body at a position vertically aligned with the infrared sensor, and a vacuum cleaner body is inserted into the vacuum cleaner opening.

[0010] As a further improvement, the spindle assembly comprises a spindle body, a fixed edge for installing a rotating component is arranged on the right side of the spindle body, and a first electromagnetic chuck is arranged on the tail of the right side surface of the spindle body.

[0011] A further improvement is that the rotating assembly includes a first rotating seat, and a rotating frame is nested on the first rotating seat, and a toothed disc is sleeved on the left side of the rotating frame, and a motor is meshed on the upper end of the toothed disc, and a welding portion sleeve is provided on the right side of the rotating frame, and a driving gear meshed with the toothed disc is provided on the motor;

[0012] A sleeve cavity is provided in the middle of the right side surface of the welding portion sleeve, and the sleeve cavity is circular in shape. A rotating opening for the right end of the main shaft body to pass through is provided in the middle of the left side surface of the sleeve cavity.

[0013] A further improvement is that the push-pull seat group includes a welding bracket, and a second rotating seat and a telescopic end sleeve seat are nested in the middle of the lower end of the welding bracket, and two telescopic slides are provided at the upper and lower ends of the left side surface of the telescopic end sleeve seat, and the two telescopic slides are hexagonal in shape. A fixed block is provided on the right side of the upper end of the welding bracket, and a first double-slope block is provided on the lower end of the right side surface of the fixed block.

[0014] A further improvement is that the first telescopic end includes a telescopic sliding column, and the telescopic sliding column is movably inserted into the telescopic sliding mouth, and a spring is sleeved on the column body at the left end of the telescopic sliding column, a spring locking edge is provided at the tail of the left end of the telescopic sliding column, and a positioning locking edge and a movable abutment block are provided on the column body at the right end of the telescopic sliding column, and a second double-slope abutment surface for movably abutting against the slope of the first double-slope abutment surface is provided on the left side of the movable abutment block.

[0015] A further improvement is that the grinding assembly includes a grinding beam, and the cross-section of the grinding beam is square, and a movable sleeve at the right end of the grinding beam is provided with a transverse slide, a second telescope is laterally arranged at the upper end of the left side surface of the transverse slide, and the second telescope is fixedly connected to the top surface of the grinding beam, a pressure sensor is arranged on the right side surface of the transverse slide, and a grinder body is laterally arranged on the right side surface of the pressure sensor.

[0016] As a further improvement, the right side of the slag collecting hood is provided with an arc-shaped hood edge, and a plurality of slag discharge holes are provided in a circular array at intervals in the middle of the arc-shaped hood edge.

[0017] A further improvement is that the positioning and unloading assembly includes a unloading support, and a third telescope is longitudinally arranged on the unloading support, and a positioning seat is longitudinally arranged on the front side of the third telescope, an arc-shaped positioning groove is opened on the left side of the positioning seat, and a plurality of second electromagnetic suction cups are spaced apart on the right groove wall of the arc-shaped positioning groove, and a plurality of supporting slide rods are longitudinally arranged on the rear side of the positioning seat, and the other end of each supporting slide rod passes through the unloading support.

[0018] A further improvement is that the fixed end, the welding device body, the driving roller, the vacuum cleaner body and the grinder body are all existing technologies, and the structures are not described one by one here.

[0019] In addition, the present invention also provides a working method of the seamless steel pipe rod welding machine, and the working method is as follows:

[0020] S1: First, the steel pipe rod is hoisted to the right side of the top surface of the feeder frame group through an external hoisting machine, and then transported to the left through the driving roller. When the infrared sensor senses the left end of the steel pipe rod, the transportation is stopped, and then the steel pipe rod is lowered and pressed by the fixed end;

[0021] S2: First, the third telescopic device on the positioning and discharging assembly drives the positioning seat to move forward, and then the steel pipe rod cover is placed in the arc-shaped positioning groove, and each second electromagnetic suction cup is used for electromagnetic adsorption and fixation, and then the first telescopic device on the welding device is extended to the right to allow the first electromagnetic suction cup to electromagnetically adsorb the left side of the steel pipe rod cover, and then the third telescopic device drives the positioning seat to return to its position backward, and finally the first telescopic device drives the first electromagnetic suction cup to move to the right again, so that the steel pipe rod cover moves to the right again and is inserted into the left pipe opening of the steel pipe rod;

[0022] S3: The rotator on the welding part is rotated 180° to rotate the first telescopic end upward. Under the counteraction of the movable stop block and the fixed stop block on the first telescopic end, the welder body is extended to the right for welding. When the welder body is welding, the rotating assembly drives the welding part to rotate 360° to assist, so that the welder body can weld the entire circumference of the steel pipe rod cover plate;

[0023] S4: The rotator is rotated 180° to rotate the second telescopic end upward, and the grinder body is extended to the right under the counteraction of the movable stop block and the fixed stop block on the second telescopic end, while the welder body retracts to the left and then extends to the right through the second telescopic device, so that the grinding head at the right end of the grinder body is close to the weld for grinding. During the grinding operation, the rotating assembly still drives the welding part to rotate 360° to assist in grinding the weld in a full circle.

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

[0025] The present invention provides a seamless steel pipe rod welding machine and a working method. A seamless steel pipe rod welding machine is formed through a structural combination design of a feeding frame group, a welding device, a fixed end, a positioning and discharging component, and an infrared sensor. The cooperation between the driving roller on the feeding frame group and the infrared sensor can transport the steel pipe rod to the left on the frame body to a specific position, so that the subsequent welding device can accurately fit when it is transported to the right after electromagnetically adsorbing the steel pipe rod cover plate.

[0026] The design of the positioning and discharge assembly allows the steel pipe rod cover plate to be directly placed in a horizontally aligned position with the left side pipe opening of the steel pipe rod, so that the first telescope on the welding device can directly electromagnetically absorb the steel pipe rod cover plate when extending to the right in the first stage, and then can achieve precise alignment and fit between the steel pipe rod cover plate and the left side pipe opening of the steel pipe rod when extending to the right in the second stage.

[0027] The design of the welding device, in which the first telescopic device has a two-stage rightward extension stroke function, and the welding part has an automatic switching function between welding and grinding, so that after the steel pipe rod cover is welded, it can be directly switched to the weld grinding function, and when the welding part is operating, the rotating assembly assists the welding part to perform a 360° reciprocating rotation function, thereby realizing the welding of the entire circumference of the steel pipe rod cover and the weld grinding operation. The design of the slag collecting hood and the vacuum cleaner body plays an auxiliary function of protecting the welding part from strong light, smoking fog and absorbing welding slag during welding and weld grinding, so that the working environment will not be polluted during welding and grinding operations. Through the above, the present invention does not require manual welding and manual grinding of welds. The staff only needs to perform simple material discharge, and the welding machine of the present invention can complete it automatically, with a high degree of automation, saving time and effort, and high work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a structural schematic diagram of a seamless steel pipe rod welding machine of the present invention;

[0029] Figure 2 It is a structural schematic diagram of the welding device of the present invention;

[0030] Figure 3 It is a schematic diagram of the structure of the main shaft assembly of the present invention;

[0031] Figure 4 It is a schematic diagram of the structure of the rotating assembly of the present invention;

[0032] Figure 5 This is a schematic diagram of the welding part structure of the present invention;

[0033] Figure 6 It is a schematic diagram of the structure of the push seat assembly of the present invention;

[0034] Figure 7 This is a schematic diagram of the structure of the first telescopic end of the present invention;

[0035] Figure 8 This is a schematic diagram of the structure of the grinding assembly of the present invention;

[0036] Fig. 9 This is a schematic diagram of the slag collecting cover structure of the present invention;

[0037] Fig.10 It is the left view of the positioning and unloading assembly of the present invention. DETAILED DESCRIPTION

[0038] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0039] See also Figure 1-Figure 10 The present invention provides a seamless steel pipe rod welding machine and a working method: its structure includes a feeding frame group 1, and a welding device 2 is transversely arranged at the left end of the feeding frame group 1, and a fixed end 3 is arranged above the left end of the feeding frame group 1, and a positioning and discharging component 4 is longitudinally arranged at the rear end of the left side of the fixed end 3, and an infrared sensor 5 is arranged on the left side of the fixed end 3. The welding device 2 includes a main seat 21, and a main shaft sleeve 22 is embedded in the middle of the main seat 21, and a main shaft group 23 is transversely movably sleeved in the main shaft sleeve 22, and a first telescopic device 24 is transversely arranged at the tail of the left side of the main shaft group 23, and a rotating component 25 is sleeved on the right side of the shaft body of the main shaft group 23, and a welding part 26 is transversely arranged on the upper end of the right side cavity of the rotating component 25, and a slag collecting cover 27 is sleeved on the right side of the rotating component 25. The welding part 26 includes a push seat group 261, and the first telescopic end 262 and the second telescopic end 263 are movably sleeved at the upper and lower ends of the push seat group 261, and a rotator 264 is transmission-connected to the middle of the left end of the push seat group 261. A welder body 265 is transversely arranged at the tail of the right end of the first telescopic end 262, and a grinding assembly 266 is transversely arranged at the tail of the right end of the second telescopic end 263. When the rotator 264 drives the first telescopic end 262 and the second telescopic end 263 to perform a 180° reciprocating rotation through the push seat group 261, the right ends of the first telescopic end 262 and the second telescopic end 263 are respectively movably abutted against the right side of the upper end of the push seat group 261, so that the welder body 265 extends to the right to weld the steel pipe rod or the grinding assembly 266 extends to the right to grind the weld of the steel pipe rod.

[0040] The feeding frame assembly 1 includes a frame body 11, and a plurality of driving rollers 12 and a plurality of driven rollers 13 are longitudinally spaced apart on the right side of the top surface of the frame body 11. A vacuum cleaner opening 14 is provided through the left end of the top surface of the frame body 11 at a position vertically aligned with the infrared sensor 5, and a vacuum cleaner body 15 is inserted into the vacuum cleaner opening 14.

[0041] The spindle assembly 23 includes a spindle body 231 , and a fixing edge 232 for installing the rotating assembly 25 is disposed on the right side of the spindle body 231 , and a first electromagnetic chuck 233 is disposed at the rear of the right side surface of the spindle body 231 .

[0042] The rotating assembly 25 includes a first rotating seat 251, and a rotating frame 252 is nested on the first rotating seat 251, and a toothed disc 253 is arranged around the left side of the rotating frame 252, and a motor 254 is meshed on the upper end of the toothed disc 253. A welding portion sleeve 255 is arranged on the right side of the rotating frame 252, and a driving gear meshed with the toothed disc 253 is arranged on the motor 254. A sleeve cavity 2551 is opened in the middle of the right side of the welding portion sleeve 255, and the sleeve cavity 2551 is circular. A rotating opening 2552 is opened in the middle of the left side of the sleeve cavity 2551 for the right end of the main shaft body 231 to pass through.

[0043] The push-pushing seat assembly 261 includes a welding bracket 2611, and a second rotating seat 2612 and a telescopic end sleeve seat 2613 are nested in the middle of the lower end of the welding bracket 2611, and two telescopic slides 2614 are provided at the upper and lower ends of the left side of the telescopic end sleeve seat 2613, and the two telescopic slides 2614 are hexagonal in shape. A fixed stop block 2615 is provided on the right side of the upper end of the welding bracket 2611, and a first double-slope stop surface 2616 is provided at the lower end of the right side of the fixed stop block 2615.

[0044] The first telescopic end 262 includes a telescopic slide column 2621, and the telescopic slide column 2621 is movably inserted into the telescopic slide mouth 2614, and a spring 2622 is sleeved on the left end column of the telescopic slide column 2621, and a spring locking edge 2623 is provided at the left end tail of the telescopic slide column 2621, and a positioning locking edge 2624 and a movable stop block 2625 are provided on the right end column of the telescopic slide column 2621, and a second double-slope stop surface 2626 for movably abutting against the slope of the first double-slope stop surface 2616 is opened on the left side of the movable stop block 2625.

[0045] The grinding assembly 266 includes a grinding beam 2661, and the cross-section of the grinding beam 2661 is square, and a transverse slide 2662 is movably provided on the right end of the grinding beam 2661, and a second telescope 2663 is transversely arranged on the upper end of the left side surface of the transverse slide 2662, and the second telescope 2663 is fixedly connected to the top surface of the grinding beam 2661, and a pressure sensor 2664 is arranged on the right side of the transverse slide 2662, and a grinder body 2665 is transversely arranged on the right side of the pressure sensor 2664.

[0046] The right side of the slag collecting cover 27 is provided with an arc-shaped cover edge 271 , and a plurality of slag discharge holes 272 are arranged in a circular array in the middle of the arc-shaped cover edge 271 .

[0047] The positioning and unloading component 4 includes a unloading support 41, and a third telescoping device 42 is longitudinally arranged on the unloading support 41, and a positioning seat 43 is longitudinally arranged on the front side of the third telescoping device 42, an arc-shaped positioning groove 44 is opened on the left side of the positioning seat 43, and a plurality of second electromagnetic suction cups 45 are arranged at intervals on the right groove wall of the arc-shaped positioning groove 44, and a plurality of supporting slide rods 46 are longitudinally arranged on the rear side of the positioning seat 43, and the other end of each supporting slide rod 46 passes through the unloading support 41.

[0048] Working principle:

[0049] S1: First, the steel pipe rod is hoisted to the right side of the top surface of the feeder frame group 1 by an external hoisting machine, and then transported to the left by the driving roller 12. When the infrared sensor 5 senses the left end of the steel pipe rod, the transportation is stopped, and then the steel pipe rod is lowered and pressed by the fixed end 3;

[0050] It should be noted that the function of the infrared sensor 5 is to enable the left end of the steel pipe rod to move accurately to a specific position when the steel pipe rod shifts to the left, so that the subsequent welding device 2 can horizontally align the left side of the steel pipe rod cover plate with the left side of the steel pipe rod when the electromagnetic adsorption steel pipe rod cover plate moves to the right to fit.

[0051] S2: First, the third telescopic device 42 on the positioning and discharging assembly 4 drives the positioning seat 43 to move forward, and then the steel pipe rod cover is placed in the arc-shaped positioning groove 44, and each second electromagnetic suction cup 45 is used for electromagnetic adsorption and fixation, and then the first telescopic device 24 on the welding device 2 extends to the right to allow the first electromagnetic suction cup 233 to electromagnetically adsorb the left side of the steel pipe rod cover, and then the third telescopic device 42 drives the positioning seat 43 to return to its position backward, and finally the first telescopic device 24 drives the first electromagnetic suction cup 233 to move to the right again, so that the steel pipe rod cover moves to the right again and is inserted into the left pipe opening of the steel pipe rod;

[0052] It should be noted that the function of the positioning and discharging component 4 is to assist the steel pipe rod cover plate to discharge materials accurately, so that after the first electromagnetic suction cup 233 moves to the right to electromagnetically absorb the steel pipe rod cover plate, it can be directly aligned horizontally with the left pipe opening of the steel pipe rod, and the rightward extension stroke of the first telescope 24 is divided into two stages. The first stage stroke is for electromagnetically absorbing the steel pipe rod cover plate, and then pauses and waits for the positioning seat 43 to return to its position and open the right channel, and then the second stage stroke is carried out to fit the steel pipe rod cover plate with the left pipe opening of the steel pipe rod, so that there will be no collision problem between the front end of the positioning and discharging component 4 and the right end of the welding device 2.

[0053] S3: The rotator 264 on the welding part 26 is rotated 180° to rotate the first telescopic end 262 upward, and the movable stop block 2625 on the first telescopic end 262 and the fixed stop block 2615 are counteracted to make the welder body 265 extend rightward for welding. When the welder body 265 is welding, the rotating assembly 25 drives the welding part 26 to perform 360° rotation assistance, so that the welder body 265 can weld the entire circumference of the steel pipe rod cover plate;

[0054] It should be noted that, through the design of the second double-slope abutment surface 2626 of the movable abutment block 2625 and the first double-slope abutment surface 2616 of the fixed abutment block 2615, and under the automatic leftward retraction positioning of the telescopic slide column 2621 by the positioning card edge 2624, the first telescopic end 262 can slide to the left by a fixed distance when it automatically slides to the left under the action of the spring 2622, providing conditions for the subsequent movable abutment block 2625 and the fixed abutment block 2615 to abut against each other, and the problem of failure to push will not occur;

[0055] The rotating assembly 25 is designed to assist the welding portion 26 in performing 360° rotation, and the rotating assembly 25 is designed to perform 360° reciprocating rotation.

[0056] When the welding device body 265 is welding, the slag collecting cover 27 can protect against strong light, and the smoke generated during welding can be extracted by the vacuum cleaner body 15 through each slag discharge hole 272, thus preventing the welding smoke from diffusing and floating around.

[0057] S4: The rotator 264 is rotated 180° to rotate the second telescopic end 263 upward, and the active stop block 2625 on the second telescopic end 263 and the fixed stop block 2615 are used to make the grinder body 2665 extend to the right, while the welder body 265 retracts to the left, and then extends to the right through the second telescopic device 2663, so that the grinding head at the right end of the grinder body 2665 is close to the weld for grinding. During the grinding operation, the rotating assembly 25 still drives the welding part 26 to rotate 360° to assist in grinding the weld in a full circle.

[0058] It should be noted that when the second retractor 2663 pushes the grinder body 2665 to the right to grind the weld, the pressure sensor 2664 will sense in real time, so that the rightward extension stroke of the second retractor 2663 can be adjusted in time. The main purpose is to enable the grinder body 2665 to grind with the same close contact force during grinding, and to prevent the grinding head of the grinder body 2665 from failing to grind after being worn out and unable to close to the weld.

[0059] During grinding, the slag collecting cover 27 can also collect welding slag, and under the extraction action of the vacuum cleaner body 15, the grinding welding slag can be discharged downward through each slag discharge hole 272 and sucked away.

[0060] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the attached claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0061] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A seamless steel pipe rod welding machine, characterized in that: The structure comprises a feeding frame group (1), wherein a welding device (2) is transversely arranged at the left end of the feeding frame group (1), and a fixed end (3) is arranged above the left end of the feeding frame group (1), a positioning and discharging component (4) is longitudinally arranged at the rear end of the left side of the fixed end (3), and an infrared sensor (5) is arranged on the left side of the fixed end (3); The welding device (2) comprises a main seat (21), a main shaft sleeve (22) is embedded in the middle of the main seat (21), a main shaft group (23) is movably sleeved in the main shaft sleeve (22), a first telescopic device (24) is transversely arranged at the tail of the left side of the main shaft group (23), a rotating assembly (25) is sleeved on the right side of the shaft body of the main shaft group (23), a welding portion (26) is transversely arranged at the upper end of the right side cavity of the rotating assembly (25), and a slag collecting cover (27) is sleeved on the right side periphery of the rotating assembly (25); The welding part (26) comprises a push seat group (261), and the push seat group (261) is provided with a first telescopic end (262) and a second telescopic end (263) in a transversely movable sleeve at the upper and lower ends, and a rotator (264) is transmission-connected to the middle of the left end of the push seat group (261), a welding device body (265) is transversely arranged at the right end of the first telescopic end (262), and a grinding assembly (266) is transversely arranged at the right end of the second telescopic end (263); When the rotator (264) drives the first telescopic end (262) and the second telescopic end (263) to reciprocate 180 degrees through the push seat assembly (261), the right ends of the first telescopic end (262) and the second telescopic end (263) are respectively moved against the right side of the upper end of the push seat assembly (261), so that the welding device body (265) extends to the right to weld the steel pipe rod or the grinding assembly (266) extends to the right to grind the weld of the steel pipe rod; The push-pushing seat assembly (261) comprises a welding bracket (2611), and a second rotating seat (2612) and a telescopic end sleeve seat (2613) are nested in the middle of the lower end of the welding bracket (2611), and two telescopic sliding openings (2614) are provided through the upper and lower ends of the left side surface of the telescopic end sleeve seat (2613), and the two telescopic sliding openings (2614) are hexagonal in shape. A fixed push-pushing block (2615) is provided on the right side of the upper end of the welding bracket (2611), and a first double-slope push-pushing surface (2616) is provided on the lower end of the right side surface of the fixed push-pushing block (2615); The first telescopic end (262) comprises a telescopic sliding column (2621), and the telescopic sliding column (2621) is movably inserted into the telescopic sliding opening (2614), and a spring (2622) is sleeved on the left end column of the telescopic sliding column (2621), and a spring locking edge (2623) is arranged at the tail of the left end of the telescopic sliding column (2621), and a positioning locking edge (2624) and a movable stop block (2625) are arranged on the right end column of the telescopic sliding column (2621), and a second double-slope stop surface (2626) for movably stopping against the slope of the first double-slope stop surface (2616) is provided on the left side surface of the movable stop block (2625); The grinding assembly (266) includes a grinding beam (2661), and the cross-section of the grinding beam (2661) is square-shaped, and a transverse slide (2662) is provided on the right end of the grinding beam (2661). A second telescopic device (2663) is transversely arranged at the upper end of the left side surface of the transverse slide (2662), and the second telescopic device (2663) is fixedly connected to the top surface of the grinding beam (2661). A pressure sensor (2664) is provided on the right side surface of the transverse slide (2662), and a grinder body (2665) is transversely arranged on the right side surface of the pressure sensor (2664).

2. A seamless steel pipe rod welding machine according to claim 1, characterized in that: The feeder frame assembly (1) comprises a frame body (11), and a plurality of driving rollers (12) and a plurality of driven rollers (13) are longitudinally spaced apart on the right side of the top surface of the frame body (11); a vacuum cleaner opening (14) is provided through the left end of the top surface of the frame body (11) at a position vertically aligned with the infrared sensor (5), and a vacuum cleaner body (15) is sleeved in the vacuum cleaner opening (14).

3. A seamless steel pipe rod welding machine according to claim 2, characterized in that: The spindle assembly (23) comprises a spindle body (231), a fixed edge (232) for mounting a rotating assembly (25) is arranged on the right side of the spindle body (231), and a first electromagnetic suction cup (233) is arranged at the rear of the right side surface of the spindle body (231).

4. A seamless steel pipe rod welding machine according to claim 3, characterized in that: The rotating assembly (25) comprises a first rotating seat (251), a rotating frame (252) is nested on the first rotating seat (251), a toothed disc (253) is sleeved around the left side of the rotating frame (252), a motor (254) is meshed at the upper end of the toothed disc (253), a welding portion sleeve (255) is provided on the right side of the rotating frame (252), and a driving gear meshed with the toothed disc (253) is provided on the motor (254); A sleeve cavity (2551) is provided in the middle of the right side of the welding portion sleeve (255), and the sleeve cavity (2551) is circular in shape. A rotation opening (2552) is provided in the middle of the left side of the sleeve cavity (2551) for the right end of the main shaft body (231) to pass through.

5. A seamless steel pipe rod welding machine according to claim 4, characterized in that: The right side of the slag collecting cover (27) is provided with an arc-shaped cover edge (271), and the middle part of the arc-shaped cover edge (271) is provided with a plurality of slag discharge holes (272) at intervals in a circular array.

6. A seamless steel pipe rod welding machine according to claim 5, characterized in that: The positioning and unloading assembly (4) comprises an unloading support (41), a third telescopic device (42) is longitudinally arranged on the unloading support (41), and a positioning seat (43) is longitudinally arranged on the front side of the third telescopic device (42), an arc-shaped positioning groove (44) is opened on the left side surface of the positioning seat (43), a plurality of second electromagnetic suction cups (45) are arranged at intervals on the right groove wall of the arc-shaped positioning groove (44), and a plurality of supporting slide bars (46) are longitudinally arranged on the rear side surface of the positioning seat (43), and the other end of each supporting slide bar (46) passes through the unloading support (41).

7. A working method using the seamless steel pipe rod welding machine according to claim 6, characterized in that: The working method is as follows: S1: First, the steel pipe rod is hoisted to the right side of the top surface of the feeding machine frame group (1) through an external hoisting machine, and then transported to the left through the driving roller (12). When the infrared sensor (5) senses the left end of the steel pipe rod, the transportation is stopped, and then the steel pipe rod is lowered and pressed through the fixed end (3); S2: First, the third telescopic device (42) on the positioning and discharging assembly (4) drives the positioning seat (43) to move forward, and then the steel pipe rod cover plate is placed in the arc-shaped positioning groove (44), and is fixed by electromagnetic adsorption using each second electromagnetic suction cup (45), and then the first telescopic device (24) on the welding device (2) is extended to the right to allow the first electromagnetic suction cup (233) to electromagnetically adsorb the left side of the steel pipe rod cover plate, and then the third telescopic device (42) drives the positioning seat (43) to return to its original position, and finally the first telescopic device (24) drives the first electromagnetic suction cup (233) to move to the right again, so that the steel pipe rod cover plate moves to the right again and is inserted into the left pipe opening of the steel pipe rod; S3: The rotator (264) on the welding part (26) is rotated 180° to rotate the first telescopic end (262) upward, and the movable stop block (2625) and the fixed stop block (2615) on the first telescopic end (262) are counteracted to make the welder body (265) extend rightward to perform welding. When the welder body (265) is welded, the rotating assembly (25) drives the welding part (26) to perform 360° rotation assistance, so that the welder body (265) can weld the entire circumference of the steel pipe rod cover plate; S4: The rotator (264) is rotated 180° to rotate the second telescopic end (263) upward, and the movable stop block (2625) on the second telescopic end (263) and the fixed stop block (2615) are used to make the grinder body (2665) extend to the right, while the welder body (265) retracts to the left and then extends to the right through the second telescopic device (2663), so that the grinding head at the right end of the grinder body (2665) is close to the weld for grinding. During the grinding operation, the rotating assembly (25) still drives the welding part (26) to rotate 360° to assist in grinding the weld in a full circle.

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