Liquid cooling pipeline welding device with automatic positioning function

Abstract

The invention discloses a liquid cooling pipeline welding device with an automatic positioning function, and relates to the technical field of liquid cooling pipeline welding. Comprising a rotary clamping assembly, a base table, a positioning clamping assembly, a positioning detection device, a sliding base and a welding machine, the height difference of two sections of pipelines is converted into an electric signal capable of being monitored through a centering detection assembly, and a control system starts the rotary clamping assembly and the positioning clamping assembly according to the electric signal to conduct deviation rectification on the pipelines; therefore, the purpose of automatically positioning and rectifying the deviation of the pipeline is achieved; the oil stain detection box is used for converting the influence of oil stain on the friction force of the positioning detection wheel and the outer surface of the pipeline into electric signals capable of being monitored, and the purpose of detecting the oil stain on the outer surface of the pipeline is achieved by analyzing the interval time and size of the electric signals. The flatness detection assembly is used for converting the concave-convex condition of the section of the pipeline into an electric signal, whether the section is flat or not is judged according to the receiving state of the electric signal, and therefore the purpose of detecting the flatness of the section of the pipeline is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of liquid cooling pipeline welding, in particular to a liquid cooling pipeline welding device with an automatic positioning function. Background Art

[0002] As an indispensable key component in modern science and technology and industrial fields, the core role of liquid cooling tubes is to achieve efficient and stable heat transfer and dissipation through circulating liquid media. In many fields such as industrial manufacturing and energy production, liquid cooling tubes play an irreplaceable role. Whether it is high-precision processing such as laser cutting and welding, or the operation of large equipment such as industrial cooling towers and heat exchangers, they cannot be separated from the support of liquid cooling tubes. With its efficient and reliable heat dissipation performance, it provides strong support for the production and development of various industries.

[0003] When liquid cooling pipes are used, they often need to be welded. When existing welding equipment is used for welding, welding deviations are often caused due to inaccurate positioning, which affects the quality of the weld. In addition, liquid cooling pipes are easily contaminated with oil and dirt during production and transportation. These oil and dirt will cause spatter and sparks during welding, which is not only dangerous but also leads to a decrease in weld quality. During the pipe cutting process, if the pipe cross-section is uneven, the pipe will be unable to be aligned, affecting the integrity after welding. Summary of the invention

[0004] The purpose of the present invention is to provide a liquid cooling pipe welding device with an automatic positioning function to solve the problems raised in the prior art.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a liquid-cooled pipe welding device with automatic positioning function, comprising a base, rotating clamping assemblies are symmetrically installed on both sides of the base, positioning clamping assemblies are symmetrically installed on the base, the positioning clamping assemblies are located between the rotating clamping assemblies, a sliding base is slidably installed on the base, the sliding base is located between the positioning clamping assemblies, a welding machine is installed on the sliding base, and a positioning detection device is installed on the sliding base, the positioning detection device is used to detect the cross-sectional flatness, outer surface condition and centering degree of the pipe to be welded.

[0006] A control system is installed in the base, which is used to control the entire pipeline welding device; the positioning clamping assembly is used to clamp and fix the pipeline to be welded, and correct the position of the pipeline according to the telecommunication feedback from the positioning detection device to align the center of the pipeline; the rotating clamping assembly is used to clamp and rotate the pipeline, and drive the pipeline to expand and contract. By cooperating with the positioning clamping assembly, the pipeline is placed in a horizontal state, and the position of the pipeline is corrected synchronously with the positioning clamping assembly. When the pipeline is inspected or welded, the rotating clamping assembly can drive the pipeline to rotate at a preset speed; a mechanical arm is provided on the welding machine, and the welding machine is adjusted to the welding position by adjusting the mechanical arm to weld the pipeline.

[0007] First, place the two sections of pipes to be welded on the positioning clamping assembly and the rotating clamping assembly. The control system controls the positioning clamping assembly and the rotating clamping assembly to clamp and fix the pipes, and perform the initial alignment of the two sections of pipes. After that, the rotating clamping assembly is used to drive the two sections of pipes closer together so that the pipe cross section contacts the positioning detection device.

[0008] When all the tests are qualified, the control system starts the rotating clamping assembly, which drives the two sections of the pipe to detach from the positioning detection device. After that, the sliding base is started, and the sliding base slides on the base and drives the positioning detection device to move away. At the same time, the welder is put in place, and the control system starts the rotating clamping assembly again to bring the pipes closer until the pipe gap meets the welding requirements. The welder is started, and the welder automatically adjusts its position and welds the two sections of the pipe. While welding, the rotating clamping assembly drives the pipe to rotate at a uniform speed until the welding is completed, thereby achieving the purpose of automatic pipe welding.

[0009] The positioning detection device includes a positioning base, which is installed on a sliding base. A detection outer ring is installed on the positioning base. Detection rings are symmetrically installed on both sides of the detection outer ring. The detection rings are respectively provided with a number of rack grooves, cylinder holes and positioning grooves. The detection ring is slidably installed with a detection component through the positioning groove, and an adjustment disk is rotatably installed on one side of the detection ring.

[0010] The positioning detection device also includes a plurality of detection motors and a plurality of detection cylinders. The detection cylinders are mounted on the detection rings. The output shafts of the detection cylinders pass through the cylinder holes and are equipped with fixing plates. Fixed suction cups are symmetrically mounted on the fixing plates. The detection motors are mounted on the detection rings. The output shafts of the detection motors are equipped with detection gears. The detection gears mesh with the adjusting disks for transmission.

[0011] The control system starts the detection motor according to the pipe diameter, and the detection motor output shaft drives the detection gear to rotate, the detection gear drives the arc rack to rotate, the arc rack drives the adjustment disk to rotate as a whole, the adjustment disk drives the sliding column to rotate through the first arc groove, the sliding column drives the adjustment slider to rotate, and because the adjustment slider is constrained by the positioning slide groove, the rotation is converted into a linear sliding in the positioning slide groove, the adjustment slider slides through the main positioning rod and the main spring, and then drives the entire detection assembly to slide. When the cross-section detection wheel on the detection assembly can contact the pipe cross section, the control system stops the detection motor, and then controls the rotating clamping assembly to make the pipe cross section contact with the pipe cross section. The cross-section detection wheel contacts the pipe, and then the rotating clamping assembly drives the pipe to move forward slightly. The cross-section drives the cross-section detection wheel to move. The cross-section detection wheel drives the detection spring to stretch slightly through the measuring wheel connector and the T-bar. After that, the control system stops rotating the clamping assembly, and the detection spring in the stretched state transmits the elastic force to the cross-section detection wheel through the T-bar and the measuring wheel connector, so that the cross-section detection wheel applies a pre-tightening force to the pipe cross-section to ensure that the cross-section detection wheel fits tightly with the pipe cross-section. When the pipe cross-section is uneven, under the action of the pre-tightening force, the cross-section detection wheel will expand and contract with the fluctuation of the cross-section, so as to achieve the purpose of the flatness detection component always fitting well with the pipe cross-section.

[0012] The adjusting disk includes a disk body, which is rotatably connected to the detection ring. A plurality of arc-shaped racks are installed on the disk body, which pass through the rack slide groove and mesh with the detection gear for transmission. A plurality of first arc-shaped grooves and second arc-shaped grooves are arranged on the disk body, and the output shaft of the detection cylinder passes through the second arc-shaped groove. The adjusting disk is slidably connected to the detection component through the first arc-shaped groove.

[0013] The detection component includes an adjusting slider, a sliding column is installed on one side of the adjusting slider, the adjusting slider is slidably connected to the positioning slide groove, the sliding column is slidably connected to the first arc groove, a main positioning rod is slidably installed on the adjusting slider, a spring connecting piece is slidably installed on the main positioning rod, a main spring is installed between the spring connecting piece and the adjusting slider, a main connecting block is installed at the bottom end of the main positioning rod, a centering detection component is rotatably installed on the main connecting block, an oil detection box is installed on the centering detection component, and a flatness detection component is installed on the main connecting block.

[0014] The centering detection assembly includes a balance rod, which is rotatably mounted on the main connecting block, with positioning detection wheels symmetrically and rotatably mounted on both ends of the balance rod, connecting rings symmetrically mounted on the balance rod, a balance spring mounted between the connecting ring and the spring connecting piece, a balancing contact mounted on the bottom end of the connecting ring, a measuring wheel contact mounted on the positioning detection wheel, an oil detection box mounted on the balance rod, and the positioning detection wheel including a measuring wheel tire, which is made of a material with a high friction coefficient and is provided with anti-slip grooves.

[0015] After the flatness detection component is in place, the control system starts the detection motor again and repeats the previous steps to shrink the detection component as a whole. When the positioning detection wheel contacts the outer surface of the pipe, the control system drives the detection component to further shrink slightly through the detection motor. The positioning detection wheel cannot shrink due to contact with the outer surface of the pipe. Therefore, when the adjustment slider slides, it can only compress the main spring and slide along the main positioning rod. After that, the detection motor is turned off and the detection cylinder is turned on at the same time. The output shaft of the detection cylinder drives the fixed plate to shrink, and the fixed suction cup on the fixed plate contacts the adjustment plate. As the fixed suction cup approaches, the air in the fixed suction cup is compressed and discharged, thereby adjusting the adjustment plate. The section disk is adsorbed and fixed, so that the adjustment disk will not rotate during the detection process, ensuring that the detection accuracy will not be affected by the deflection of the rotating disk. The main spring in the stretched state transmits the elastic force to the balance rod through the spring connecting disk, the balance spring and the connecting ring, so that the positioning detection wheels at both ends of the balance rod apply a pre-tightening force to the outer surface of the pipeline, ensuring that the positioning detection wheels are tightly fitted to the outer surface of the pipeline. When the two sections of the pipeline are not in a center-aligned state, there will be a height difference between the outer surfaces of the two sections of the pipeline. Under the action of the pre-tightening force, the positioning detection wheels will swing with the height difference between the outer surfaces of the two sections of the pipeline, so as to achieve the purpose of the centering detection component always fitting with the outer surface of the pipeline.

[0016] When the centers of the two sections of the pipeline are not aligned and there is a height difference, under the action of the preload, the positioning detection wheel on the side with the lower height will drop and fit the outer surface of the pipeline, and the positioning detection wheel on the side with the higher height will rise and fit the outer surface of the pipeline. The positioning detection wheels on both sides drive the balance bar to overcome the elastic force of the balance spring and deflect. The balance bar drives the connecting ring on the side with the lower height to drop, and the balance contact at the bottom of the connecting ring squeezes the second piezoelectric element. The second piezoelectric element is compressed and generates current, which is transmitted to the control system. The control system determines the difference in height in each direction by analyzing the strength of the current, and determines the position difference according to the position signal. The control system can determine the height of the outer surfaces of the two sections of the pipeline by positioning the detection wheel, and after the detection is completed, the control system starts the rotating clamping component and the positioning clamping component according to the electrical signal to correct the pipeline, thereby achieving the purpose of automatic positioning and correction of the pipeline; at the same time, when there is a lot of dirt on the outer surface of the pipeline, the positioning detection wheel will be lifted at the dirt, thereby generating a sudden electrical signal, while the electrical signal generated by the center misalignment is relatively gentle. The control system determines whether the pipeline surface is adhered to dirt by analyzing the changing trend of the electrical signal, and sends a signal to the staff to conduct another test after the dirt is removed, thereby achieving the purpose of dirt detection.

[0017] The flatness detection assembly includes a detection frame and a first piezoelectric element. A T-bar is slidably installed on the detection frame. A detection spring is installed between the T-bar and the detection frame. The first piezoelectric element is installed on the main connecting block. The second piezoelectric element is installed on the detection frame. A measuring wheel connecting piece is installed at one end of the T-bar. A cross-section detection wheel is rotatably installed on the measuring wheel connecting piece. The surface layer of the cross-section detection wheel is made of a high friction coefficient material.

[0018] The pipeline rotates and contacts the cross-section detection wheel. When the cross-section of the pipeline is uneven, it will generate fluctuations and drive the cross-section detection wheel to slide back and forth. When a bulge appears on the cross-section, it will drive the cross-section detection wheel to contract. The cross-section detection wheel drives the T-bar to contract through the measuring wheel connector. The T-bar contracts and squeezes the first piezoelectric element. The first piezoelectric element is pressurized and generates current. The control system analyzes the received electrical signal to determine whether the cross-section is flat and sends an electrical signal to the staff. The staff cleans or polishes the cross-section and then inspects it again, thereby achieving the purpose of detecting the flatness of the pipeline cross-section.

[0019] The oil stain detection box includes a detection shell, which is installed on a balance bar. A compression contact is slidably installed in the detection shell, a compression spring is installed between the compression contact and the detection shell, and a third piezoelectric element is installed in the detection shell, and the third piezoelectric element is located in the compression spring.

[0020] The control system turns on the rotating clamping assembly, so that the rotating clamping assembly drives the two sections of the pipeline to rotate synchronously. The rotation of the pipeline will drive the positioning detection wheel to rotate, and the positioning detection wheel drives the measuring wheel contact to rotate. When the measuring wheel contact rotates to the position of the oil detection box, it will contact the compression contact. The round convex head at the end of the measuring wheel contact squeezes the compression contact, causing the compression contact to overcome the elastic force of the compression spring and shrink. When the compression contact is completely retracted, one end of the compression contact will squeeze the third piezoelectric element. After the third piezoelectric element is squeezed, it generates current, and the current is transmitted to the control system. The control system determines the rotation speed of the positioning detection wheel by analyzing the interval time of the electrical signal. When the outer surface of the pipeline is clean and tidy, the size of each group of electrical signals is close, and the interval time of the electrical signals is uniform. When oil appears on the outer surface of the pipeline, the friction between the positioning detection wheel and the outer surface of the pipeline will be reduced, and even the positioning detection wheel will slip, thereby causing the electrical signal interval to increase or disconnect. The control system achieves the effect of oil detection on the outer surface of the pipeline by analyzing the electrical signal interval and size of the third piezoelectric element. The control system sends an electrical signal to the staff, and performs another test after the oil is removed.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. The present invention utilizes a centering detection component to convert the height difference between two sections of the pipeline into an electrical signal that can be monitored. The control system determines the difference in height difference in each direction by analyzing the strength of the current, and determines the height of the outer surfaces of the two sections of the pipeline according to the position where the electrical signal is sent. After the detection is completed, the control system starts the rotating clamping component and the positioning clamping component according to the electrical signal to correct the pipeline, thereby achieving the purpose of automatic positioning and correction of the pipeline; when there is large dirt on the outer surface of the pipeline, the positioning detection wheel will be lifted at the dirt, thereby generating a sudden change in the electrical signal. The control system determines whether the pipeline surface is adhered to the dirt by analyzing the change trend of the electrical signal, thereby achieving the purpose of dirt detection.

[0023] 2. Use the oil detection box to convert the effect of oil on the friction between the positioning detection wheel and the outer surface of the pipeline into an electrical signal that can be monitored. By analyzing the interval time and size of the electrical signal, the purpose of oil detection on the outer surface of the pipeline can be achieved.

[0024] 3. Use the detection cylinder to drive the fixed plate to contract, so that the fixed suction cup can adsorb and fix the adjusting disk, so that the adjusting disk will not rotate during the detection process, ensuring that the detection accuracy will not be affected by the deflection of the rotating disk; use the main spring to make the positioning detection wheels at both ends of the balance bar apply pre-tightening force to the outer surface of the pipeline to ensure that the positioning detection wheels are in close contact with the outer surface of the pipeline. Under the action of the pre-tightening force, the positioning detection wheels will swing with the height difference of the outer surfaces of the two sections of the pipeline, so as to achieve the purpose of the centering detection component always fitting with the outer surface of the pipeline.

[0025] 4. Use the flatness detection component to convert the concave and convex conditions of the pipe cross section into electrical signals. The flatness of the cross section can be determined by the receiving state of the electrical signals, thereby achieving the purpose of pipe cross section flatness detection.

[0026] 5. Use the adjustment ring to adjust the spacing of the detection components so that the detection components can detect pipes of different diameters; by stretching the detection spring, the cross-section detection wheel applies a preload force to the pipe cross-section to ensure that the cross-section detection wheel fits tightly with the pipe cross-section. When the pipe cross-section is uneven, under the action of the preload force, the cross-section detection wheel will expand and contract with the cross-section to ensure that the flatness detection component always fits with the pipe cross-section; use the positioning clamping component and the rotating clamping component to realize the positioning, clamping, rotation and expansion of the pipe, and cooperate with the welding machine to realize fully automatic welding of the pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is an overall elevation view of the pipeline welding device of the present invention;

[0028] Figure 2 It is an elevation view of the positioning detection device of the present invention;

[0029] Figure 3 is a cross-sectional elevation view of the positioning detection device of the present invention;

[0030] Figure 4 is an elevation view of the detection assembly of the present invention;

[0031] Figure 5 It is a cross-sectional elevation view of the oil stain detection box of the present invention;

[0032] Figure 6 It is an elevation view of the adjustment disk of the present invention;

[0033] Figure 7 For the present invention Figure 3 A partial enlarged view of the middle A area;

[0034] Figure 8 It is an elevation view of the positioning detection wheel of the present invention;

[0035] Fig. 9 is an elevation view of the detection ring of the present invention;

[0036] In the figure: 1. Rotating clamping assembly; 2. Base; 3. Positioning clamping assembly; 4. Positioning detection device; 5. Sliding base; 6. Welding machine; 41. Positioning base; 42. Adjusting plate; 43. Detection outer ring; 44. Detection ring; 45. Detection motor; 46. Detection gear; 47. Detection cylinder; 48. Fixed plate; 49. Fixed suction cup; 7. Detection assembly; 71. Adjusting slider; 72. Positioning detection wheel; 73. Main positioning rod; 74. Main spring; 75. Spring connecting plate; 76. Balance spring; 77. Main connecting block; 78. Balance rod; 79. Connecting ring; 710. Oil stain detection Box; 711, first piezoelectric element; 712, balance contact; 713, cross-section detection wheel; 714, measuring wheel connector; 715, detection frame; 716, T-bar; 717, detection spring; 718, second piezoelectric element; 719, sliding column; 7101, detection housing; 7102, compression contact; 7103, third piezoelectric element; 7104, compression spring; 421, arc-shaped rack; 422, first arc-shaped groove; 423, second arc-shaped groove; 721, measuring wheel contact; 722, measuring wheel outer tire; 441, rack slide groove; 442, positioning slide groove; 443, cylinder hole. DETAILED DESCRIPTION

[0037] 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.

[0038] like Figure 1-9 As shown, the present invention provides a technical solution for a liquid-cooling pipe welding device with an automatic positioning function: it includes a base 2, rotating clamping assemblies 1 are symmetrically installed on both sides of the base 2, positioning clamping assemblies 3 are symmetrically installed on the base 2, the positioning clamping assemblies 3 are located between the rotating clamping assemblies 1, a sliding base 5 is slidably installed on the base 2, the sliding base 5 is located between the positioning clamping assemblies 3, a welding machine 6 is installed on the sliding base 5, and a positioning detection device 4 is installed on the sliding base 5, and the positioning detection device 4 is used to detect the cross-sectional flatness, outer surface condition and centering degree of the pipe to be welded.

[0039] A control system is installed in the base 2, and the control system is used to control the entire pipeline welding device; the positioning clamping component 3 is used to clamp and fix the pipeline to be welded, and correct the position of the pipeline according to the telecommunication feedback from the positioning detection device 4 to align the center of the pipeline; the rotating clamping component 1 is used to clamp and rotate the pipeline, and drive the pipeline to expand and contract. By cooperating with the positioning clamping component 3, the pipeline is placed in a horizontal state, and the position of the pipeline is corrected synchronously with the positioning clamping component 3. When the pipeline is inspected or welded, the rotating clamping component 1 can drive the pipeline to rotate at a preset speed; a mechanical arm is provided on the welding machine 6, and the welding machine 6 is adjusted to the welding position by adjusting the mechanical arm to weld the pipeline.

[0040] The positioning detection device 4 includes a positioning base 41, which is installed on a sliding base 5. A detection outer ring 43 is installed on the positioning base 41, and detection rings 44 are symmetrically installed on both sides of the detection outer ring 43. The detection ring 44 is respectively provided with a plurality of rack grooves 441, a cylinder hole 443 and a positioning groove 442. The detection ring 44 is slidably installed with a detection component 7 through the positioning groove 442, and an adjustment disk 42 is rotatably installed on one side of the detection ring 44.

[0041] The positioning detection device 4 also includes a plurality of detection motors 45 and a plurality of detection cylinders 47. The detection cylinders 47 are mounted on the detection ring 44. The output shaft of the detection cylinder 47 passes through the cylinder hole 443 and is installed with a fixing plate 48. The fixing plate 48 is symmetrically installed with a fixed suction cup 49. The detection motor 45 is mounted on the detection ring 44. The output shaft of the detection motor 45 is installed with a detection gear 46. The detection gear 46 is meshed with the adjustment disk 42 for transmission.

[0042] The adjusting disk 42 includes a disk body, which is rotatably connected to the detection ring 44. A plurality of arc-shaped racks 421 are mounted on the disk body, which pass through rack slide grooves 441 and mesh with the detection gear 46 for transmission. A plurality of first arc-shaped grooves 422 and second arc-shaped grooves 423 are provided on the disk body, and the output shaft of the detection cylinder 47 passes through the second arc-shaped groove 423. The adjusting disk 42 is slidably connected to the detection assembly 7 through the first arc-shaped groove 422.

[0043] The detection component 7 includes an adjusting slider 71, a sliding column 719 is installed on one side of the adjusting slider 71, the adjusting slider 71 is slidably connected to the positioning slide groove 442, the sliding column 719 is slidably connected to the first arc groove 422, a main positioning rod 73 is slidably installed on the adjusting slider 71, a spring connecting piece 75 is slidably installed on the main positioning rod 73, a main spring 74 is installed between the spring connecting piece 75 and the adjusting slider 71, a main connecting block 77 is installed at the bottom end of the main positioning rod 73, a centering detection component 7 is rotatably installed on the main connecting block 77, an oil detection box 710 is installed on the centering detection component 7, and a flatness detection component 7 is installed on the main connecting block 77.

[0044] The centering detection assembly 7 includes a balance bar 78, which is rotatably mounted on the main connecting block 77. Positioning detection wheels 72 are symmetrically and rotatably mounted at both ends of the balance bar 78. Connecting rings 79 are symmetrically mounted on the balance bar 78. A balance spring 76 is mounted between the connecting ring 79 and the spring connecting piece 75. A balancing contact 712 is mounted on the bottom end of the connecting ring 79. A measuring wheel contact 721 is mounted on the positioning detection wheel 72. An oil detection box 710 is mounted on the balance bar 78. The positioning detection wheel 72 includes a measuring wheel outer tire 722. The measuring wheel outer tire 722 is made of a material with a high friction coefficient and is provided with anti-slip grooves.

[0045] The oil stain detection box 710 includes a detection shell 7101, which is installed on the balance bar 78. A compression contact 7102 is slidably installed in the detection shell 7101, a compression spring 7104 is installed between the compression contact 7102 and the detection shell 7101, and a third piezoelectric element 7103 is installed in the detection shell 7101, and the third piezoelectric element 7103 is located in the compression spring 7104.

[0046] The flatness detection assembly 7 includes a detection frame 715 and a first piezoelectric element 711. A T-bar 716 is slidably installed on the detection frame 715. A detection spring 717 is installed between the T-bar 716 and the detection frame 715. The first piezoelectric element 711 is installed on the main connecting block 77. A second piezoelectric element 718 is installed on the detection frame 715. A measuring wheel connector 714 is installed at one end of the T-bar 716. A cross-section detection wheel 713 is rotatably installed on the measuring wheel connector 714. The surface of the cross-section detection wheel 713 is made of a material with a high friction coefficient.

[0047] The working principle of the present invention is as follows: first, two sections of pipes to be welded are placed on the positioning clamping assembly 3 and the rotating clamping assembly 1, the control system controls the positioning clamping assembly 3 and the rotating clamping assembly 1 to clamp and fix the pipes, and perform the initial alignment of the two sections of pipes, and then, the rotating clamping assembly 1 is used to drive the two sections of pipes to move closer, so that the pipe cross section contacts the positioning detection device 4.

[0048] The control system starts the detection motor 45 according to the pipe diameter, the output shaft of the detection motor 45 drives the detection gear 46 to rotate, the detection gear 46 drives the arc rack 421 to rotate, the arc rack 421 drives the adjustment disk 42 to rotate as a whole, the adjustment disk 42 drives the sliding column 719 to rotate through the first arc groove 422, the sliding column 719 drives the adjustment slider 71 to rotate, because the adjustment slider 71 is constrained by the positioning slide groove 442, the rotation is converted into a linear sliding in the positioning slide groove 442, the adjustment slider 71 slides through the main positioning rod 73 and the main spring 74, and then drives the entire detection assembly 7 to slide, when the cross-section detection wheel 713 on the detection assembly 7 can contact the pipe cross section, the control system stops the detection motor 45, and then controls the rotating clamping assembly 1 to make The pipe cross section contacts the cross section detection wheel 713, and then the rotating clamping assembly 1 drives the pipe to move forward slightly further, and the cross section drives the cross section detection wheel 713 to move. The cross section detection wheel 713 drives the detection spring 717 to stretch slightly through the measuring wheel connector 714 and the T-bar 716. After that, the control system stops rotating the clamping assembly 1, and the detection spring 717 in the stretched state transmits the elastic force to the cross section detection wheel 713 through the T-bar 716 and the measuring wheel connector 714, so that the cross section detection wheel 713 applies a pre-tightening force to the pipe cross section to ensure that the cross section detection wheel 713 fits tightly with the pipe cross section. When the pipe cross section is uneven, under the action of the pre-tightening force, the cross section detection wheel 713 will expand and contract with the fluctuation of the cross section, so as to achieve the purpose of the flatness detection assembly 7 always fitting with the pipe cross section.

[0049] After the flatness detection component 7 is in place, the control system starts the detection motor 45 again and repeats the previous steps to shrink the detection component 7 as a whole. When the positioning detection wheel 72 contacts the outer surface of the pipe, the control system drives the detection component 7 to further shrink slightly through the detection motor 45. The positioning detection wheel 72 cannot shrink due to contact with the outer surface of the pipe. Therefore, when the adjustment slider 71 slides, it can only compress the main spring 74 and slide along the main positioning rod 73. After that, the detection motor 45 is turned off and the detection cylinder 47 is turned on at the same time. The output shaft of the detection cylinder 47 drives the fixed plate 48 to shrink. The fixed suction cup 49 on the fixed plate 48 contacts the adjustment plate 42. As the fixed suction cup 49 approaches, the air in the fixed suction cup 49 is compressed. The adjusting disk 42 is discharged, thereby adsorbing and fixing the adjusting disk 42, so that the adjusting disk 42 will not rotate during the detection process, ensuring that the detection accuracy will not be affected by the deflection of the rotating disk, and the main spring 74 in the stretched state transmits the elastic force to the balance rod 78 through the spring connecting disk, the balance spring 76 and the connecting ring 79, so that the positioning detection wheels 72 at both ends of the balance rod 78 apply a pre-tightening force to the outer surface of the pipeline, ensuring that the positioning detection wheels 72 are tightly fitted to the outer surface of the pipeline. When the two sections of the pipeline are not in a center-aligned state, there will be a height difference between the outer surfaces of the two sections of the pipeline. Under the action of the pre-tightening force, the positioning detection wheel 72 will swing with the height difference between the outer surfaces of the two sections of the pipeline, so as to achieve the purpose of the centering detection component 7 always fitting with the outer surface of the pipeline.

[0050] The control system turns on the rotating clamping assembly 1, so that the rotating clamping assembly 1 drives the two sections of the pipeline to rotate synchronously. The rotation of the pipeline drives the positioning detection wheel 72 to rotate, and the positioning detection wheel 72 drives the measuring wheel contact 721 to rotate. When the measuring wheel contact 721 rotates to the position of the oil detection box 710, it will contact the compression contact 7102. The round convex head at the end of the measuring wheel contact 721 squeezes the compression contact 7102, so that the compression contact 7102 overcomes the elastic force of the compression spring 7104 and shrinks. When the compression contact 7102 is completely shrunk, one end of the compression contact 7102 squeezes the third piezoelectric element 7103, and the third piezoelectric element 7103 generates electricity after being squeezed. The current is transmitted to the control system, and the control system determines the rotation speed of the positioning detection wheel 72 by analyzing the interval time of the electrical signal. When the outer surface of the pipeline is clean and tidy, the size of each group of electrical signals is close, and the interval time of the electrical signals is uniform. When oil appears on the outer surface of the pipeline, the friction between the positioning detection wheel 72 and the outer surface of the pipeline will be reduced, and the positioning detection wheel 72 may even slip, thereby increasing or disconnecting the electrical signal interval. The control system achieves the effect of detecting oil on the outer surface of the pipeline by analyzing the interval and size of the electrical signals of the third piezoelectric element 7103. The control system sends an electrical signal to the staff, and performs another test after the oil is removed.

[0051] When the centers of the two sections of the pipeline are not aligned and a height difference occurs, under the action of the preload, the positioning detection wheel 72 on the side with a lower height will drop and fit the outer surface of the pipeline, and the positioning detection wheel 72 on the side with a higher height will rise and fit the outer surface of the pipeline. The positioning detection wheels 72 on both sides drive the balance rod 78 to overcome the elastic force of the balance spring 76 and deflect. The balance rod 78 drives the connecting ring 79 on the side with a lower height to drop, and the balance contact 712 at the bottom of the connecting ring 79 squeezes the second piezoelectric element 718. The second piezoelectric element 718 is compressed and generates current, which is transmitted to the control system. The control system determines the difference in height in each direction by analyzing the strength of the current. , and according to the position where the electrical signal is sent, the height of the outer surface of the two sections of the pipeline is judged. After the detection is completed, the control system starts the rotating clamping component 1 and the positioning clamping component 3 according to the electrical signal to correct the pipeline, thereby achieving the purpose of automatic positioning and correction of the pipeline; at the same time, when there is a large amount of dirt on the outer surface of the pipeline, the positioning detection wheel 72 will be lifted at the dirt, thereby generating a sudden electrical signal, while the electrical signal generated by the center misalignment is relatively gentle. The control system determines whether the pipeline surface is adhered to dirt by analyzing the changing trend of the electrical signal, and sends a signal to the staff to perform another test after the dirt is removed, thereby achieving the purpose of dirt detection.

[0052] The pipeline rotates and contacts the cross-section detection wheel 713. When the cross-section of the pipeline is uneven, it will generate fluctuations and drive the cross-section detection wheel 713 to slide back and forth. When a bulge appears on the cross-section, it will drive the cross-section detection wheel 713 to contract. The cross-section detection wheel 713 drives the T-bar 716 to contract through the measuring wheel connector 714. The T-bar 716 contracts and squeezes the first piezoelectric element 711. The first piezoelectric element 711 is pressurized and generates current. The control system analyzes the received electrical signal to determine whether the cross-section is flat, and sends an electrical signal to the staff. The staff cleans or polishes the cross-section and then inspects it again, thereby achieving the purpose of detecting the flatness of the pipeline cross-section.

[0053] When all the tests are qualified, the control system starts the rotating clamping assembly 1, and the rotating clamping assembly 1 drives the two sections of the pipeline to separate from the positioning detection device 4. After that, the sliding base 5 is turned on, and the sliding base 5 slides on the base 2 and drives the positioning detection device 4 to move away. At the same time, the welding machine 6 is put in place, and the control system starts the rotating clamping assembly 1 again to bring the pipelines closer until the pipeline gap meets the welding requirements, and starts the welding machine 6. The welding machine 6 automatically adjusts its position and welds the two sections of the pipeline. While welding, the rotating clamping assembly 1 drives the pipeline to rotate at a uniform speed until the welding is completed, thereby achieving the purpose of automatic pipeline welding.

[0054] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A liquid cooling pipe welding device with automatic positioning function, characterized in that: The pipeline welding device comprises a base (2), wherein rotating clamping assemblies (1) are symmetrically mounted on both sides of the base (2), positioning clamping assemblies (3) are symmetrically mounted on the base (2), wherein the positioning clamping assemblies (3) are located between the rotating clamping assemblies (1), wherein a sliding base (5) is slidably mounted on the base (2), wherein the sliding base (5) is located between the positioning clamping assemblies (3), wherein a welding machine (6) is mounted on the sliding base (5), and wherein a positioning detection device (4) is mounted on the sliding base (5), wherein the positioning detection device (4) is used to detect the cross-sectional flatness, outer surface condition and centering degree of the pipeline to be welded.

2. The liquid cooling pipe welding device with automatic positioning function according to claim 1 is characterized in that: The positioning detection device (4) comprises a positioning base (41), the positioning base (41) is mounted on a sliding base (5), a detection outer ring (43) is mounted on the positioning base (41), detection rings (44) are symmetrically mounted on both sides of the detection outer ring (43), the detection ring (44) is respectively provided with a plurality of rack grooves (441), a cylinder hole (443) and a positioning groove (442), the detection ring (44) is slidably mounted with a detection assembly (7) through the positioning groove (442), and an adjustment disk (42) is rotatably mounted on one side of the detection ring (44).

3. The liquid cooling pipe welding device with automatic positioning function according to claim 2 is characterized in that: The positioning detection device (4) also includes a plurality of detection motors (45) and a plurality of detection cylinders (47). The detection cylinders (47) are mounted on the detection ring (44). The output shaft of the detection cylinder (47) passes through the cylinder hole (443) and is mounted with a fixing plate (48). A fixing suction cup (49) is symmetrically mounted on the fixing plate (48). The detection motor (45) is mounted on the detection ring (44). A detection gear (46) is mounted on the output shaft of the detection motor (45). The detection gear (46) is meshed with the adjustment disk (42) for transmission.

4. The liquid cooling pipe welding device with automatic positioning function according to claim 3 is characterized in that: The adjusting disk (42) comprises a disk body, which is rotatably connected to a detection ring (44). A plurality of arc-shaped racks (421) are mounted on the disk body, which pass through rack slide grooves (441) and mesh with a detection gear (46) for transmission. A plurality of first arc-shaped grooves (422) and second arc-shaped grooves (423) are arranged on the disk body, an output shaft of the detection cylinder (47) passes through the second arc-shaped groove (423), and the adjusting disk (42) is slidably connected to the detection assembly (7) through the first arc-shaped grooves (422).

5. The liquid cooling pipe welding device with automatic positioning function according to claim 4 is characterized in that: The detection assembly (7) comprises an adjusting slider (71), a sliding column (719) is installed on one side of the adjusting slider (71), the adjusting slider (71) is slidably connected to the positioning slide groove (442), the sliding column (719) is slidably connected to the first arc groove (422), a main positioning rod (73) is slidably installed on the adjusting slider (71), a spring connecting piece (75) is slidably installed on the main positioning rod (73), a main spring (74) is installed between the spring connecting piece (75) and the adjusting slider (71), a main connecting block (77) is installed at the bottom end of the main positioning rod (73), a centering detection assembly (7) is rotatably installed on the main connecting block (77), an oil stain detection box (710) is installed on the centering detection assembly (7), and a flatness detection assembly (7) is installed on the main connecting block (77).

6. The liquid cooling pipe welding device with automatic positioning function according to claim 5, characterized in that: The centering detection assembly (7) comprises a balance bar (78), wherein the balance bar (78) is rotatably mounted on a main connection block (77), and positioning detection wheels (72) are symmetrically and rotatably mounted on both ends of the balance bar (78), and a connecting ring (79) is symmetrically mounted on the balance bar (78), and a balance spring (76) is mounted between the connecting ring (79) and the spring connecting piece (75), and a balancing contact (712) is mounted on the bottom end of the connecting ring (79), and a measuring wheel contact (721) is mounted on the positioning detection wheel (72), and an oil detection box (710) is mounted on the balance bar (78), and the positioning detection wheel (72) comprises a measuring wheel outer tire (722), and the measuring wheel outer tire (722) is made of a material with a high friction coefficient, and the measuring wheel outer tire (722) is provided with anti-skid patterns.

7. The liquid cooling pipe welding device with automatic positioning function according to claim 5, characterized in that: The flatness detection assembly (7) comprises a detection frame (715) and a first piezoelectric element (711); a T-shaped rod (716) is slidably mounted on the detection frame (715); a detection spring (717) is mounted between the T-shaped rod (716) and the detection frame (715); the first piezoelectric element (711) is mounted on a main connection block (77); a second piezoelectric element (718) is mounted on the detection frame (715); a measuring wheel connecting piece (714) is mounted on one end of the T-shaped rod (716); a cross-section detection wheel (713) is rotatably mounted on the measuring wheel connecting piece (714); and a surface layer of the cross-section detection wheel (713) is made of a material with a high friction coefficient.

8. The liquid cooling pipe welding device with automatic positioning function according to claim 6, characterized in that: The oil stain detection box (710) comprises a detection shell (7101), wherein the detection shell (7101) is mounted on a balance bar (78), a compression contact (7102) is slidably mounted in the detection shell (7101), a compression spring (7104) is mounted between the compression contact (7102) and the detection shell (7101), a third piezoelectric element (7103) is mounted in the detection shell (7101), and the third piezoelectric element (7103) is located in the compression spring (7104).

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