A pipe bending spot welding machine

Abstract

The present invention relates to the field of welding technology, and in particular to a bent pipe spot welding machine, comprising a first support assembly, a second support assembly and a third support assembly, wherein the first support assembly and the second support assembly are located on both sides of a cylinder and the first support assembly and the second support assembly are arranged in linkage, the first support assembly has a support beam, a support portion is hinged on the support beam, the support beam also has a drive assembly, the drive assembly is used to drive the support portion to rotate around a hinge point, the second support assembly has a first track, a first slide and a second slide, the first track is laid along the length direction of the cylinder, the third support assembly is adapted to be equipped with a third track to support both ends of the cylinder, the first support assembly and the second support assembly can simultaneously move along the axial direction of the cylinder to ensure that when the bent pipe is coiled on the cylinder, the first support assembly can provide sufficient supporting force for the cylinder, thereby improving the stability of the bent pipe during the coiling process.

Description

Technical Field

[0001] The invention relates to the technical field of welding, and in particular to a pipe bending spot welding machine. Background Art

[0002] In order to cool or heat the medium in the pressure vessel, a bent pipe is usually wound and welded on the outer shell of the container. For this, the existing welding process is: cutting the plate into strips, then making the strips into semicircular tubes, and then bending the straight semicircular tubes into disc semicircular tubes with the same diameter as the cylinder, and finally assembling them on the cylinder, and fixing the semicircular tubes on the cylinder in advance through the spot welding process, welding the annular butt joint between the tube and the cylinder, and then welding the fillet weld between the bent pipe and the cylinder after grinding.

[0003] This traditional processing method has a complicated manufacturing process and it is difficult to effectively support the cylinder in rotation. In the process of the elbow fitting the outer wall of the cylinder, the cylinder is subjected to pulling force, which can easily cause deviation and unstable support. In addition, since there are a large number of elbows coiled on the cylinder, the welding difficulty is increased, which invisibly increases the leakage of the weld and greatly affects the overall aesthetic appearance of the elbow. Summary of the invention

[0004] The purpose of the present invention is to provide a pipe bending spot welding machine, which solves the problem of unstable support of the cylinder during the coiling process.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a pipe bending spot welding machine, comprising a first support assembly, a second support assembly and a third support assembly, the first support assembly and the second support assembly are located on both sides of a cylinder and the first support assembly and the second support assembly are linked and arranged, the first support assembly has a support beam, a support portion is hinged on the support beam, the support beam also has a driving assembly, the driving assembly is used to drive the support portion to rotate around a hinge point, the second support assembly has a first track, a first slide and a second slide, the first track is laid along the length direction of the cylinder, the first slide is coupled with the first track along the length direction of the cylinder, the first slide is coupled with the second slide along a direction perpendicular to the length direction of the cylinder, one end of the support beam is fixedly connected to the second slide, the second slide is used to install a pipe bending machine and a material rack, the other end of the support beam is adapted with a second track, and the third support assembly is adapted with a third track to support both ends of the cylinder.

[0006] By adopting the above technical solution: a first support assembly, a second support assembly and a third support assembly are set, the first support assembly and the second support assembly are respectively located on both sides of the cylinder, and the third support assembly is used to support both ends of the cylinder, the first support assembly and the second support assembly can move along the axial direction of the cylinder at the same time, to ensure that when the bent pipe is coiled on the cylinder, the first support assembly can provide sufficient supporting force for the cylinder, and by adjusting the supporting positions of the first support assembly and the second support assembly as the cylinder deviates, the stability of the bent pipe during the coiling process can be effectively improved.

[0007] The unloading rack and the pipe bending machine are both arranged on the second slide, and the outlet end of the pipe bending machine is provided with an encoder; a slide screw is installed in the first slide, and a first nut block adapted to the slide screw is fixedly connected to the bottom of the second slide, and a first motor is installed on the outer side of the first slide through a slide bracket, and the output shaft of the first motor is connected to one end of the slide screw through a torque limiter, a slide rail is provided at the top of the first slide, and a slide slider is provided on the slide rail, and the bottom of the second slide is fixedly connected to the top of the slide slider.

[0008] By adopting the above technical solution: a first motor and a slide screw are provided on the first slide, and the slide screw can be driven to rotate by the first motor, thereby driving the second slide to slide along the upper end surface of the first slide; since a torque limiter is provided at one end of the first motor and the slide screw, in the process of winding the material belt around the cylinder, the tensioning degree of the material belt is detected by the encoder; when it is detected that the material belt is too loose, it is necessary to pull the second slide away from the cylinder through the cooperation of the slide screw and the first nut block so as to tighten the material belt; when it is detected that the material belt is too tight, it is necessary to push the second slide toward the cylinder to release the tensioning force of the material belt; in this process, the torque limiter can adaptively adjust the tightness of the material belt to avoid pulling the material belt or pulling the material belt, thereby achieving adaptive fitting of the material belt and the cylinder and ensuring processing quality.

[0009] Two guide rails are provided on the track, and a guide rack is provided on the inner side of one of the guide rails. A guide assembly adapted to the guide rails is provided at the bottom of the first slide. A second motor is also installed in the first slide, and a driving gear connected to the guide rack is provided at the bottom of the second motor.

[0010] By adopting the above technical solution: a guide rack is installed on the guide rail, a guide assembly is connected to the first slide to slide with the guide rail, and a second motor is also arranged on the first slide, and the driving gear is connected through the second motor to realize the back and forth movement of the base on the guide rail.

[0011] The guide assembly includes a first roller, a second roller and a third roller. The guide rail adopts an I-shaped guide rail. The first roller is installed on the inner side of the first slide through a guide seat and the first roller is against the top surface of the guide rail. The side of the guide seat is provided with a support seat for installing the second roller. The second roller extends into the I-shaped groove of the guide rail and forms a top contact with the first roller. The outer bottom end of the first slide is also provided with a fixed seat for installing the third roller. The third roller is used to vertically resist the two side edges of the top of the guide rail.

[0012] By adopting the above technical solution: the guide assembly is provided with a first roller, a second roller and a third roller. Since the cross-section of the guide rail is I-shaped, the first roller is arranged to abut against the top surface of the guide rail, the second roller is arranged to extend into the I-shaped groove of the guide rail and form a top contact with the first roller, and the third roller is arranged to abut against the two side edges of the guide rail, thereby ensuring the stability of the first slide and the second slide during the sliding process.

[0013] A support plate is provided in the first slide, one end of the slide screw is provided on the support plate through a bearing seat, a first hinge seat is provided on the side of the support plate, the support plate is hinged with an adaptive seat through the first hinge seat, the adaptive seat rotates in the radial plane of the driving gear through the first hinge seat, a guide plate is also provided at the end of the adaptive seat away from the first hinge seat, an open groove is provided on the guide plate, a fixing rod is fixedly connected to the side of the support plate, an anti-top spring is provided on the fixing rod, the fixing rod is inserted into the open groove from one side of the guide plate and one end of the anti-top spring is against the guide plate.

[0014] By adopting the above technical solution: one end of the adaptive seat is hinged to the support plate through the first hinge seat, and a guide plate is further arranged at the other end of the adaptive seat, and the anti-top spring on the guide rod is used to press against the guide plate, so that the driving gear is pressed against the guide rack, ensuring that the driving gear and the guide rack are fully engaged, and when the driving gear or the guide rack is worn, the anti-top spring is used to press against the guide plate to eliminate the gap caused by the wear of the driving gear and the guide rack, thereby improving the service life.

[0015] A rotating base, a second hinge seat and a third hinge seat are provided at one end of the second slide, one end of the rotating base is hinged to the second slide via the second hinge seat, a live screw is hinged on the third hinge seat, one end of the rotating base away from the second hinge seat is connected to a limiting plate, a socket for the live screw to pass through is provided on the limiting plate, and the live screws are located on both sides of the limiting plate and are connected with limiting bolts.

[0016] By adopting the above technical solution: the pipe bender is installed through a rotating base, one end of the rotating base is hinged to the upper end surface of the second slide through a second hinge seat, and the other end is connected with a movable screw and a third hinge seat. The angle of the rotating base can be adjusted by the movable screw, thereby adjusting the inclination angle of the pipe bender, and then the outlet end of the pipe bender can freely adjust the distance and height relationship with the cylinder to ensure the processing effect of the bent pipe.

[0017] The support part has a lifting module and a rolling body, the rolling body is installed on the lifting module, and the rolling body is in sliding contact with the cylinder body. The support part includes a support arm, and the lifting module includes a lifting arm fixedly connected to the support arm. The lifting arm is provided with a first screw rod, and the top of the lifting arm is provided with a third motor for driving the first screw rod. Linear slide rails are provided on both sides of the first screw rod, and linear sliders are adapted on the linear slide rails. The linear slider is fixedly connected to a slider plate, and the slider plate is connected to a support frame, and a second nut block adapted to the first screw rod is connected to the support frame. The rolling body is a first support wheel, and the support frame is connected to a first support for mounting the first support wheel. A first guide rod is provided on the support frame in a direction perpendicular to the linear slide rail, and one end of the first guide rod is fixedly connected to the first support. A first cylinder is also installed on the support frame, and an output end of the first cylinder is fixedly connected to the first support.

[0018] By adopting the above technical solution: the first support assembly has a support part and a lifting module, the support part can adjust the angle so that the rolling body on the lifting module is against the side of the cylinder, ensuring the support effect on the cylinder, because the lifting arm is connected to the support arm, the lifting arm adopts a linear slide rail and a linear slider to be adapted to connect the first support wheel, the first support wheel is used to roll in contact with the side of the cylinder, when the cylinder is coiled around the bent pipe, the first support wheel can provide support for the side of the cylinder away from the pipe bender, ensuring the stability of the bent pipe when coiling.

[0019] A fourth support assembly is provided on the support beam, and the fourth support assembly includes a mounting frame, a second support is provided on the top of the mounting frame, and the second support is connected to the second support wheel. A second guide rod is vertically provided on the mounting frame, and the top of the second guide rod is fixedly connected to the first support. A second cylinder is installed on the mounting frame, and the output end of the second cylinder is fixedly connected to the second support facing upward.

[0020] By adopting the above technical solution: a fourth support assembly is added to support the middle part of the bottom end of the cylinder, a second support wheel is installed on the second support, and the position of the second support wheel can be adjusted by the second cylinder, thereby providing a better support effect for the cylinder.

[0021] The driving assembly includes a fourth hinge seat, a fifth hinge seat and a worm gear lift. The fourth hinge seat is arranged on the support beam and is located between the first support assembly and the fourth support assembly. The fifth hinge seat is arranged on the support arm. The body of the worm gear lift is hinged to the support beam through the fourth hinge seat, and the screw end of the worm gear lift is hinged to the support arm through the fifth hinge seat.

[0022] By adopting the above technical solution: the driving component has a worm gear screw lift. After starting the worm gear screw lift, the screw of the worm gear screw lift can pull or push the support arm to make a circular motion, thereby completing the support of the first support wheel on the side of the cylinder.

[0023] The third support assembly includes a third track arranged along the length direction of the cylinder, at least two walking brackets are provided on the third track, two walking slides are symmetrically provided on the walking bracket, a driving wheel module is installed on the top of the walking slide, and a track wheel that travels along the third track is provided at the bottom of the walking bracket, a bidirectional screw rod is symmetrically installed in the walking bracket, and a servo motor that is transmission-connected to one end of the bidirectional screw rod is installed on the outer side of the walking bracket; the bottom of the walking slide is slidably installed on the walking bracket, and the bottom end of the walking slide is connected to a third nut block adapted to the bidirectional screw rod. The driving wheel module includes a third support, a third support wheel is installed on the third support, a third motor is installed on the outer side of the third support, and the output end of the third motor is connected to the third support wheel.

[0024] By adopting the above technical solution: at least two groups of the third support components are provided, which are generally distributed at both ends of the cylinder. The third track is provided to enable the walking bracket to find the best position to support the cylinder. The walking bracket has two walking slides that can form a V-shaped or U-shaped support for the cylinder. Furthermore, the walking bracket is provided with a bidirectional screw rod that can adjust the distance between the walking slides. The bidirectional screw rod is driven by a servo motor, so it can adapt to cylinders of different sizes and has a wider applicability.

[0025] Technical effects and advantages of the present invention:

[0026] In this solution, a first support assembly, a second support assembly and a third support assembly are provided. The first support assembly and the second support assembly are respectively located on both sides of the cylinder, and the third support assembly is used to support both ends of the cylinder. The first support assembly and the second support assembly can move along the axial direction of the cylinder at the same time to ensure that when the bent pipe is coiled on the cylinder, the first support assembly can provide sufficient supporting force for the cylinder, thereby improving the stability of the bent pipe during the coiling process.

[0027] In this solution, a first motor and a slide screw are provided on the first slide, and the slide screw can be driven to rotate by the first motor, thereby driving the second slide to slide along the upper end surface of the first slide. Since the first motor and one end of the slide screw are provided with a torque limiter, in the process of winding the material belt around the cylinder, the tension of the material belt is detected by the encoder. When it is detected that the material belt is too loose, it is necessary to pull the second slide away from the cylinder through the cooperation of the slide screw and the first nut block to tighten the material belt. When it is detected that the material belt is too tight, it is necessary to push the second slide toward the cylinder to release the tension of the material belt. In this process, the torque limiter can adaptively adjust the tightness of the material belt to avoid pulling the material belt or pulling the material belt, thereby achieving adaptive fitting of the material belt and the cylinder and ensuring processing quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 A three-dimensional diagram of the pipe bending spot welding machine provided by the present invention;

[0029] Figure 2 A three-dimensional diagram of a second supporting assembly in the pipe bending spot welding machine provided by the present invention;

[0030] Figure 3 A schematic diagram of the assembly structure of the first slide and the second slide in the pipe bending spot welding machine provided by the present invention;

[0031] Figure 4 for Figure 3 A schematic diagram of the structure from another perspective;

[0032] Figure 5 A schematic structural diagram of a first supporting assembly in a pipe bending spot welding machine provided by the present invention;

[0033] Figure 6 for Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0034] Figure 7 for Figure 4 A schematic diagram of the enlarged structure at B in the middle;

[0035] Figure 8 for Figure 5 Schematic diagram of the enlarged structure at C in the middle;

[0036] Fig. 9 for Figure 1 Schematic diagram of the enlarged structure at D in the middle.

[0037] Figure numerals: 1, first track; 2, guide rack; 3, first slide; 4, second slide; 5, fixed frame; 6, unloading frame; 7, pipe bending machine; 8, encoder; 9, support beam; 10, support arm; 11, lifting arm; 12, second track; 13, third track; 14, slide bracket; 15, first motor; 16, torque limiter; 17, slide rail; 18, slide block; 19, slide screw; 20, first nut block; 21, second motor; 22, driving gear; 23, adaptive seat; 24, first hinge seat; 25, support plate; 26, guide plate; 27, anti-top spring; 28, fixed rod; 29, guide seat; 30, first roller; 31, second roller; 32, fixed seat; 33, third roller ; 34. Second hinge seat; 35. Articulated screw; 36. Rotating base; 37. Limiting plate; 38. Screw end; 39. Machine body; 40. Linear guide rail; 41. Linear slider; 42. First screw; 43. Third motor; 44. Slider plate; 45. Support frame; 46. First cylinder; 47. First guide rod; 48. First support; 49. First support wheel; 50. Mounting frame; 51. Second support; 52. Second support wheel; 53. Second cylinder; 54. Second guide rod; 55. Second hinge seat; 56. Fifth hinge seat; 57. Track wheel; 58. Traveling bracket; 59. Traveling slide; 60. Bidirectional screw; 61. Third support; 62. Third support wheel; 63. Third motor; 64. Servo motor. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the 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.

[0039] This embodiment provides Figure 1The pipe bending spot welding machine shown in the figure includes a first support assembly, a second support assembly and a third support assembly. The first support assembly and the second support assembly are located on both sides of the cylinder and the first support assembly and the second support assembly are arranged in a linked manner. The first support assembly has a support beam 9, and a support portion is hinged on the support beam 9. The support beam 9 also has a driving assembly, and the driving assembly is used to drive the support portion to rotate around the hinge point. The second support assembly has a first track 1, a first slide 3 and a second slide 4. The first track 1 is laid along the length direction of the cylinder, the first slide 3 is coupled with the first track 1 along the length direction of the cylinder, and the first slide 3 is coupled with the second slide 4 in a direction perpendicular to the length direction of the cylinder. One end of the support beam 9 is fixedly connected to the second slide 4, and the second slide 4 is used to install a pipe bending machine 7 and a material rack 6 The other end of the support beam 9 is adapted with a second track 12, and the third support assembly is adapted with a third track 13 to support both ends of the cylinder. A first support assembly, a second support assembly and a third support assembly are provided. The first support assembly and the second support assembly are respectively located on both sides of the cylinder, and the third support assembly is used to support both ends of the cylinder. The first support assembly and the second support assembly can move along the axial direction of the cylinder at the same time to ensure that when the bent pipe is coiled on the cylinder, the first support assembly can provide sufficient supporting force for the cylinder, thereby improving the stability of the bent pipe during the coiling process. When the cylinder rotates, the surface of the cylinder begins to coil the bent pipe. At this time, the bent pipe can be fixed on the cylinder through a spot welding process. After the cylinder finishes coiling the bent pipe, the weld between the bent pipe and the cylinder can be welded through a full welding process.

[0040] like Figure 2 As shown, in this embodiment, the unloading rack 6 and the pipe bending machine 7 are both arranged on the second slide 4. Specifically, the second slide 4 is provided with a fixing rack 5, the unloading rack 6 is mounted on the fixing rack 5 by bolts, and the outlet end of the pipe bending machine 7 is provided with an encoder 8; a slide screw 19 is installed in the first slide 3, and a first nut block 20 adapted to the slide screw 19 is fixedly connected to the bottom of the second slide 4. A first motor 15 is installed on the outer side of the first slide 3 through a slide bracket 14, and the output shaft of the first motor 15 is connected to the slide screw One end of 19 is connected through a torque limiter 16, a slide rail 17 is provided at the top of the first slide 3, a slide block 18 is provided on the slide rail 17, the bottom of the second slide 4 is fixedly connected to the top of the slide block 18, a first motor 15 and a slide screw 19 are provided on the first slide 3, the slide screw 19 can be driven to rotate by the first motor 15, thereby driving the second slide 4 to slide along the upper end surface of the first slide 3, because the first motor 15 and one end of the slide screw 19 are provided with a torque limiter 16.

[0041] Normally, when the material belt is wound on the cylinder, it may be too loose or too tight. In addition, when the material belt is spirally wound, the cross-sectional size of the cylinder will change, and the material belt may be too loose or too tight. When the material belt is too loose or too tight, it is necessary to use the first motor 15 to drive the slide screw 19 to rotate, and drive the second slide 4 to move forward and backward along the slide rail 17, so as to adjust the tightness of the material belt. When the material belt is too tight, the second slide 4 needs to move forward a distance. When it is detected that the material belt is too loose, the second slide 4 needs to move backward. Under the action of the torque limiter, when the second slide 4 reaches the appropriate position under the traction of the slide screw 19, the tension generated by the tightening of the material belt is greater than the transmission torque set by the torque limiter. At this time, the torque limiter If slipping occurs, the slide screw 19 has a positioning function, which can keep the second slide 4 in a suitable position; secondly, when the material belt is too loose, the slide screw 19 directly pulls the second slide 4 backward for a distance until the torque limiter slips; according to the characteristics of the above-mentioned torque limiter, when the material belt is too loose or too tight again, the torque limiter can still be caused to slip by adjusting the displacement of the second slide 4, thereby completing the adaptive adjustment of the tightness of the material belt, achieving adaptive fitting between the material belt and the cylinder, and ensuring the processing quality.

[0042] Furthermore, in the process of winding the material belt on the cylinder, the tensioning degree of the material belt is detected by the encoder 8, and two guide rails are provided on the track, and a guide rack 2 is provided on the inner side of one of the guide rails, and a guide assembly adapted to the guide rail is provided at the bottom of the first slide 3. A second motor 21 is also installed in the first slide 3, and a driving gear 22 connected to the guide rack 2 is provided at the bottom of the second motor 21.

[0043] Furthermore, a guide rack 2 is installed on the guide rail, a guide assembly is connected to the first slide 3 to slide with the guide rail, and a second motor 21 is also arranged on the first slide 3, and a driving gear 22 is connected through the second motor 21 to realize the back and forth movement of the base on the guide rail.

[0044] like Figure 3 and 4 As shown, the guide assembly includes a first roller 30, a second roller 31 and a third roller 33. The guide rail adopts an I-shaped guide rail. The first roller 30 is installed on the inner side of the first slide 3 through the guide seat 29 and the first roller 30 is against the top surface of the guide rail. The side of the guide seat 29 is provided with a support seat for installing the second roller 31. The second roller 31 extends into the I-shaped groove of the guide rail and forms a top with the first roller 30. The outer bottom end of the first slide 3 is also provided with a fixed seat 32 for installing the third roller 33. The third roller 33 is used to vertically resist the two side edges of the top of the guide rail.

[0045] Since the guide assembly includes a first roller 30, a second roller 31 and a third roller 33, and the cross-section of the guide rail is I-shaped, the first roller 30 is arranged to abut against the top surface of the guide rail, the second roller 31 is arranged to extend into the I-shaped groove of the guide rail and form a top contact with the first roller 30, and the third roller 33 is arranged to abut against the two side edges of the guide rail, thereby ensuring the stability of the first slide 3 and the second slide 4 during the sliding process.

[0046] The difference between this embodiment and embodiment 1 is that a support plate 25 is provided inside the first slide 3. Figure 7 As shown, one end of the slide screw 19 is arranged on the support plate 25 through a bearing seat, and a first hinge seat 24 is provided on the side of the support plate 25. The support plate 25 is hinged with an adaptive seat 23 through the first hinge seat 24. The adaptive seat 23 rotates in the radial plane of the driving gear 22 through the first hinge seat 24. A guide plate 26 is also provided at one end of the adaptive seat 23 away from the first hinge seat 24, and an open groove is provided on the guide plate 26. A fixing rod 28 is fixedly connected to the side of the support plate 25, and an anti-top spring 27 is provided on the fixing rod 28. The fixing rod 28 is inserted into the open groove from one side of the guide plate 26 and one end of the anti-top spring 27 is against the guide plate 26.

[0047] It can be further known that one end of the adaptive seat 23 is hinged to the support plate 25 through the first hinge seat 24, and a guide plate 26 is further provided at the other end of the adaptive seat 23. The anti-top spring 27 on the guide rod is used to press against the guide plate 26, so that the driving gear 22 is pressed against the guide rack 2 to ensure that the driving gear 22 and the guide rack 2 are fully engaged. When the driving gear 22 or the guide rack 2 is worn, the anti-top spring 27 is used to press against the guide plate 26 to eliminate the gap caused by the wear of the driving gear 22 and the guide rack 2, thereby improving the service life.

[0048] like Figure 6 As shown, in Example 2, a rotating base 36, a second hinge seat 55 and a third hinge seat are provided at one end of the second slide 4. One end of the rotating base 36 is hinged to the second slide 4 through the second hinge seat 55. A movable screw 35 is hinged on the third hinge seat. One end of the rotating base 36 away from the second hinge seat 55 is connected to a limit plate 37. A jack for the movable screw 35 to pass through is provided on the limit plate 37. The movable screw 35 is located on both sides of the limit plate 37 and is connected to limit bolts. The pipe bender 7 is installed through the rotating base 36. One end of the rotating base 36 is hinged to the upper end surface of the slider plate 44 through the second hinge seat 55. The other end is connected to the movable screw 35 and the third hinge seat. The angle of the rotating base 36 can be adjusted through the movable screw 35, thereby adjusting the inclination angle of the pipe bender 7. Then, the outlet end of the pipe bender 7 can freely adjust the distance and height relationship with the cylinder to ensure the processing effect of the pipe bending.

[0049] In the above-mentioned embodiments 1 and 2, the support part has a lifting module and a rolling body, such as Figure 8 As shown, the rolling body is installed on the lifting module, and the rolling body is in sliding contact with the cylinder. The support part includes a support arm 10, and the lifting module includes a lifting arm 11 fixedly connected to the support arm 10. The lifting arm 11 is provided with a first screw rod 42, and the top of the lifting arm 11 is provided with a third motor 63 for driving the first screw rod 42. Linear guide rails 40 are provided on both sides of the first screw rod 42, and linear sliders 41 are adapted on the linear guide rails 40. The linear slider 41 is fixedly connected with a slider plate 44, and a support frame 45 is connected to the slider plate 44. The support frame 45 is connected with a second nut block adapted to the first screw rod 42. The rolling body is a first support wheel 49, and a first support 48 for mounting the first support wheel 49 is connected to the support frame 45. A first guide rod 47 is provided on the support frame 45 in a direction perpendicular to the linear guide rail 40, and one end of the first guide rod 47 is fixedly connected to the first support 48. A first cylinder 46 is also installed on the support frame 45, and the output end of the first cylinder 46 is fixedly connected to the first support 48. The first support assembly includes a support portion and a lifting module. The support portion can adjust the angle so that the rolling body on the lifting module is against the side of the cylinder, thereby ensuring the support effect on the cylinder. Since the support arm 10 is connected to the lifting arm 11, the lifting arm 11 adopts a linear slide rail 40 and a linear slider 41 to be adapted to connect to the first support wheel 49. The first support wheel 49 is used for rolling contact with the side of the cylinder. When the cylinder is coiled around the bent pipe, the first support wheel 49 can provide support for the side of the cylinder away from the pipe bender 7, thereby ensuring the stability of the bent pipe when it is coiled.

[0050] In addition, if Figure 5 As shown, a fourth support assembly is provided on the support beam 9, and the fourth support assembly includes a mounting frame 50, a second support 51 is provided at the top of the mounting frame 50, and the second support 51 is connected to a second support wheel 52, a second guide rod 54 is vertically provided on the mounting frame 50, and the top of the second guide rod 54 is fixedly connected to the first support 48, and a second cylinder 53 is installed on the mounting frame 50, and the output end of the second cylinder 53 is upwardly fixedly connected to the second support 51. The fourth support assembly is added to support the middle part of the bottom end of the cylinder, and the second support wheel 52 is installed on the second support 51. The position of the second support wheel 52 can be adjusted by the second cylinder 53, thereby providing a better support effect for the cylinder.

[0051] Further, the driving assembly of the present solution includes a fourth hinge seat, a fifth hinge seat 56 and a worm gear screw lift, the fourth hinge seat is arranged on the support beam 9 and between the first support assembly and the fourth support assembly, the fifth hinge seat 56 is arranged on the support arm 10, the body 39 of the worm gear screw lift is hinged on the support beam 9 through the fourth hinge seat, and the screw end 38 of the worm gear screw lift is hinged on the support arm 10 through the fifth hinge seat 56. The driving assembly has a worm gear screw lift, and after the worm gear screw lift is started, the screw of the worm gear screw lift can pull or push the support arm 10 to make a circular motion, so as to complete the support of the first support wheel 30 to the side of the cylinder.

[0052] Specifically, Fig. 9 As shown, the third support assembly includes a third track 13 arranged along the length direction of the cylinder, at least two walking brackets 58 are provided on the third track 13, two walking slides 59 are symmetrically provided on the walking bracket 58, a driving wheel module is installed at the top of the walking slide 59, and a track wheel 57 that travels along the third track 13 is provided at the bottom of the walking bracket 58, a bidirectional screw rod 60 is symmetrically installed in the walking bracket 58, and a servo motor 64 that is transmission-connected to one end of the bidirectional screw rod 60 is installed on the outer side of the walking bracket 58; the bottom of the walking slide 59 is slidably installed on the walking bracket 58, and the bottom end of the walking slide 59 is connected to a third nut block adapted to the bidirectional screw rod 60, the driving wheel module includes a third support 61, a third support wheel 62 is installed on the third support 61, a third motor 63 is installed on the outer side of the third support 61, and the output end of the third motor 63 is connected to the third support wheel 62. The third support assembly is provided with at least two groups, which are generally distributed at both ends of the cylinder. The third track 13 is provided to enable the walking bracket 58 to find the best position to support the cylinder. The walking bracket 58 has two walking slides 59 to form a V-shaped or U-shaped support for the cylinder. Furthermore, the walking bracket 58 is provided with a bidirectional screw rod 60 that can adjust the distance between the walking slides 59. The bidirectional screw rod 60 is driven by a servo motor 64, so that it can adapt to cylinders of different sizes and has a wider applicability.

[0053] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A pipe bending spot welding machine, characterized in that: The invention comprises a first support assembly, a second support assembly and a third support assembly, wherein the first support assembly and the second support assembly are located on both sides of the cylinder and are arranged in a linked manner, the first support assembly comprises a support beam (9), a support portion is hingedly connected to the support beam (9), the support beam (9) further comprises a drive assembly, the drive assembly is used to drive the support portion to rotate around a hinge point, the second support assembly comprises a first track (1), a first slide (3) and a second slide (4), the first track (1) is laid along the length direction of the cylinder, the first slide (3) is coupled with the first track (1) along the length direction of the cylinder, the first slide (3) is coupled with the second slide (4) along a direction perpendicular to the length direction of the cylinder, one end of the support beam (9) is fixedly connected to the second slide (4), the second slide (4) is used to install a pipe bending machine (7) and a material placing rack (6), the other end of the support beam (9) is adapted to be equipped with a second track (12), and the third support assembly is adapted to be equipped with a third track (13) so as to support both ends of the cylinder; The support portion is provided with a lifting module and a rolling body, the rolling body being mounted on the lifting module, the rolling body being in sliding contact with the cylinder, the support portion comprising a support arm (10), the lifting module comprising a lifting arm (11) fixedly connected to the support arm (10), the lifting arm (11) being provided with a first screw rod (42), the top end of the lifting arm (11) being provided with a third motor (63) for driving the first screw rod (42), linear guide rails (40) being provided on both sides of the first screw rod (42), the linear guide rails (40) being adapted to be provided with a linear slider (41), the linear slider (41) being fixedly connected to a slider plate (44), the slider plate (44) ) is connected to a support frame (45), a second nut block matched with the first screw rod (42) is connected to the support frame (45), the rolling body is a first support wheel (49), a first support seat (48) for mounting the first support wheel (49) is connected to the support frame (45), a first guide rod (47) is provided on the support frame (45) in a direction perpendicular to the linear guide rail (40), one end of the first guide rod (47) is fixedly connected to the first support seat (48), and a first cylinder (46) is also installed on the support frame (45), and an output end of the first cylinder (46) is fixedly connected to the first support seat (48).

2. A pipe bending spot welding machine as claimed in claim 1, characterized in that: The unloading rack (6) and the pipe bending machine (7) are both arranged on the second slide (4), and an encoder (8) is arranged at the outlet end of the pipe bending machine (7); a slide screw (19) is installed in the first slide (3), and a first nut block (20) adapted to the slide screw (19) is fixedly connected to the bottom of the second slide (4); a first motor (15) is installed on the outer side of the first slide (3) through a slide bracket (14), and an output shaft of the first motor (15) is connected to one end of the slide screw (19) through a torque limiter (16); a slide rail (17) is arranged at the top of the first slide (3), and a slide block (18) is arranged on the slide rail (17); and the bottom of the second slide (4) is fixedly connected to the top of the slide block (18).

3. A pipe bending spot welding machine as claimed in claim 1, characterized in that: Two guide rails are provided on the track, a guide rack (2) is provided on the inner side of one of the guide rails, a guide assembly adapted to the guide rail is provided at the bottom of the first slide (3), a second motor (21) is also installed in the first slide (3), and a driving gear (22) connected to the guide rack (2) is provided at the bottom end of the second motor (21).

4. A pipe bending spot welding machine as claimed in claim 3, characterized in that: The guide assembly comprises a first roller (30), a second roller (31) and a third roller (33); the guide rail is an I-shaped guide rail; the first roller (30) is mounted on the inner side of the first slide (3) through a guide seat (29) and the first roller (30) abuts against the top surface of the guide rail; a support seat for mounting the second roller (31) is provided on the side of the guide seat (29); the second roller (31) extends into the I-shaped groove of the guide rail and forms a top contact with the first roller (30); a fixing seat (32) for mounting the third roller (33) is also provided at the outer bottom end of the first slide (3); the third roller (33) is used to vertically abut against two side edges of the top of the guide rail.

5. A pipe bending spot welding machine as claimed in claim 3 or 4, characterized in that: A support plate (25) is provided inside the first slide (3), one end of the slide screw (19) is arranged on the support plate (25) through a bearing seat, a first hinge seat (24) is provided on the side of the support plate (25), the support plate (25) is hinged with an adaptive seat (23) through the first hinge seat (24), the adaptive seat (23) rotates in the radial plane of the driving gear (22) through the first hinge seat (24), a guide plate (26) is further provided at one end of the adaptive seat (23) away from the first hinge seat (24), an open groove is provided on the guide plate (26), a fixing rod (28) is fixedly connected to the side of the support plate (25), a counter-top spring (27) is provided on the fixing rod (28), the fixing rod (28) is inserted into the open groove from one side of the guide plate (26), and one end of the counter-top spring (27) is against the guide plate (26).

6. A pipe bending spot welding machine as claimed in claim 1, characterized in that: A rotating base (36), a second hinge base (55) and a third hinge base are provided at one end of the second slide (4); one end of the rotating base (36) is hinged to the second slide (4) via the second hinge base (55); a movable screw (35) is hinged on the third hinge base; an end of the rotating base (36) away from the second hinge base (55) is connected to a limiting plate (37); a socket for the movable screw (35) to pass through is provided on the limiting plate (37); and limiting bolts are connected to both sides of the movable screw (35) located on the limiting plate (37).

7. A pipe bending spot welding machine as claimed in claim 3, characterized in that: A fourth support assembly is provided on the support beam (9), the fourth support assembly comprising a mounting frame (50), a second support (51) being provided at the top end of the mounting frame (50), the second support (51) being connected to a second support wheel (52), a second guide rod (54) being vertically provided on the mounting frame (50), the top end of the second guide rod (54) being fixedly connected to the first support (48), a second cylinder (53) being installed on the mounting frame (50), the output end of the second cylinder (53) being fixedly connected to the second support (51) facing upward.

8. A pipe bending spot welding machine as claimed in claim 4, characterized in that: The driving assembly comprises a fourth hinge seat, a fifth hinge seat (56) and a worm gear screw lift, the fourth hinge seat being arranged on the support beam (9) and located between the first support assembly and the fourth support assembly, the fifth hinge seat (56) being arranged on the support arm (10), the body (39) of the worm gear screw lift being hinged on the support beam (9) via the fourth hinge seat, and the screw end (38) of the worm gear screw lift being hinged on the support arm (10) via the fifth hinge seat (56).

9. A pipe bending spot welding machine as claimed in claim 6, characterized in that: The third support assembly comprises a third track (13) arranged along the length direction of the cylinder, at least two walking brackets (58) are arranged on the third track (13), two walking slides (59) are symmetrically arranged on the walking bracket (58), a driving wheel module is installed on the top of the walking slide (59), a track wheel (57) that travels along the third track (13) is provided at the bottom of the walking bracket (58), a bidirectional screw rod (60) is symmetrically installed in the walking bracket (58), and a wheel (60) that is symmetrically installed on the outside of the walking bracket (58) is installed. A servo motor (64) is transmission-connected to one end of the bidirectional lead screw (60); the bottom of the walking slide (59) is slidably mounted on the walking bracket (58); the bottom end of the walking slide (59) is connected to a third nut block adapted to the bidirectional lead screw (60); the driving wheel module comprises a third support (61); a third support wheel (62) is mounted on the third support (61); a third motor (63) is mounted on the outer side of the third support (61); and an output end of the third motor (63) is connected to the third support wheel (62).

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