A measuring device for welding and manufacturing steel structure pipe trusses

Abstract

This invention discloses a measuring device for welding and manufacturing steel structure pipe trusses, relating to the field of pipe truss measurement technology. It includes a measuring mounting component with a row of measuring parts symmetrically mounted on it. One row of measuring parts is used to measure the accuracy of the pipe truss. Displacement measuring elements are respectively mounted on each of the measuring parts. The displacement measuring elements are used to eliminate prestress in the pipe truss. A counter-driving component is mounted on the measuring mounting component. Two pipe end limiting components are mounted on the counter-driving component. This invention addresses the problems of current measuring devices for welding and manufacturing steel structure pipe trusses, which are inconvenient for maintaining the symmetry of measurement points in real time, easily leading to misreading due to measurement point deviations, and making it difficult to control measurement points to avoid weld seams. By using pipe end limiting components in conjunction with the counter-driving component, it is easier for operators to ensure that the measured data is real-time and symmetrical during data measurement.

Description

Technical Field

[0001] This invention relates to the field of tubular truss measurement technology, specifically a measuring device for welding and manufacturing steel structure tubular trusses. Background Technology

[0002] In actual welding work, tubular trusses are usually constructed by welding branch pipes between two curved main steel pipes. Before welding, the main pipe needs to be measured for accuracy, especially for curved tubular truss pipes, where the symmetry of the measurement points must be ensured. Currently, the measuring devices used for manufacturing steel structure tubular trusses mainly use ground-fixed tubular truss molds for calibration and measurement deviation. This is mainly done by manually identifying the fit between the steel pipe and the mold support at various positions, which has limited efficiency and accuracy. This is because when measuring the steel pipe points, correction work is usually required at the same time, and the steel pipe is prone to displacement, making it difficult to maintain the symmetry of the measurement points in real time. This can easily lead to misreading after the measurement point deviation. When measuring and correcting the steel pipe, it is not easy to ensure the safety of the splicing weld, which can easily cause breakage and safety accidents. At the same time, it is not easy to control the measurement points to avoid the weld, and the surface of the weld is prone to protrusions, which affect the measurement accuracy.

[0003] To address this, we propose a measuring device for the welding and manufacturing of steel structure pipe trusses. Summary of the Invention

[0004] The purpose of this invention is to provide a measuring device for welding and manufacturing steel structure pipe trusses, in order to solve the problems mentioned in the background art, such as the inconvenience of maintaining the symmetry of the measuring points in real time, the easy occurrence of misreading after the deviation of the measuring points, and the inconvenience of controlling the measuring points to avoid the weld.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a measuring device for welding and manufacturing steel structure pipe trusses, comprising a measuring mounting component, wherein a row of measuring parts is symmetrically mounted on the measuring mounting component, one row of measuring parts being used to measure the accuracy of the pipe truss; displacement measuring elements are respectively mounted on the row of measuring parts; the displacement measuring elements are used to eliminate prestress in the pipe truss; opposing driving elements are mounted on the measuring mounting component; two pipe end limiting elements are mounted on the opposing driving elements; the pipe end limiting elements are used to prevent data misreading; gas shielding elements are mounted on the measuring mounting component; the gas shielding elements are used to prevent weld cracking; the measuring mounting component includes: a measuring I-beam and a rotary mounting base, the rotary mounting base being fixedly mounted on the measuring I-beam; annular covers are respectively provided on both sides of the rotary mounting base; and through grooves are provided on the measuring I-beam.

[0006] Preferably, the measuring mounting component further includes a spring, wherein the spring is fixedly installed inside the annular cover on both sides of the rotary mounting base.

[0007] Preferably, the measuring unit includes: a segmented measuring cylinder, positioning bolts, a drive screw, and scale lines. The end of the segmented measuring cylinder is inserted into a measuring I-beam. Two positioning bolts are threaded onto the segmented measuring cylinder, and the two positioning bolts pass through through slots provided on the measuring I-beam. The two positioning bolts press against the measuring I-beam. A drive screw is rotatably mounted on the segmented measuring cylinder. The tail of the drive screw has a ring of insertion holes for inserting a pry bar. The segmented measuring cylinder has scale lines. The tail of the segmented measuring cylinder has two through holes for bolts to pass through and anchor to the ground.

[0008] Preferably, the displacement measuring component includes: a measuring point slider, a warning light, a pressure measuring slider, a pressure sensor, and a limiting rod. The measuring point slider is slidably mounted on the segmented measuring cylinder; the measuring point slider is threadedly connected to a drive screw; a warning light is embedded in the measuring point slider; a pressure measuring slider is slidably mounted on the measuring point slider; a pressure sensor is fixedly mounted on the pressure measuring slider, and the pressure sensor is located inside the measuring point slider; a spring is provided between the measuring point slider and the pressure measuring slider; a limiting rod is fixedly mounted on the measuring point slider; the pressure sensor is used to detect local stress in the pipe truss; and the warning light has two LEDs of different colors.

[0009] Preferably, the displacement measuring component further includes an indicator needle, which is fixedly mounted on the measuring point slider and aligned with the scale line.

[0010] Preferably, the opposing drive component includes: opposing threaded rods and opposing sliders, the opposing threaded rods being rotatably mounted on a rotary mounting base; opposing threaded rods are fixedly mounted on the inner ends of the two mainsprings; the mainsprings are used to drive the opposing threaded rods to rotate; two opposing sliders are slidably mounted on the measuring I-beam, and the two opposing sliders are respectively threadedly connected to the two ends of the opposing threaded rods.

[0011] Preferably, the pipe end limiting component includes: a limiting frame, an adjusting stud, a stop cover, and a push switch. The limiting frame is fixedly mounted on the opposing slider. The adjusting stud is threadedly connected to the limiting frame, and the adjusting stud is fastened to the limiting frame by two nuts. The stop cover is slidably inserted into the adjusting stud. The stop cover is used to fit against the end of the pipe truss. The push switch is fixedly mounted on the adjusting stud, and the stop cover presses against the push switch. A spring connects the stop cover and the adjusting stud. The push switch is electrically connected to the LED on the warning light.

[0012] Preferably, the gas-proof protective component includes: an air intake pipe, branch pipes, and sleeves. The air intake pipe is fixedly installed on a rotary mounting base. A row of branch pipes is fixedly installed on the air intake pipe. A valve is provided on each branch pipe. Sleeves are fixedly installed on each row of branch pipes, and the sleeves are made of steel. The diameter of the sleeve is larger than the distance between the pressure measuring slider and the limiting rod. The sleeves are located between a row of segmented measuring cylinders. An air intake pump is connected to the air intake pipe.

[0013] Preferably, the gas-insulating protective component further includes: an expansion rubber pad, a pressure supply pipe, and a pressure gauge. An expansion rubber pad is fixedly installed at both ends inside the sleeve, and the two expansion rubber pads are connected by a pipe fitting. A pressure supply pipe is fixedly installed on the expansion rubber pad. A valve is provided on the pressure supply pipe. A pressure gauge is fixedly installed on the side of the sleeve, and the pressure gauge is used for leak detection. The pressure supply pipe is used to connect to an air pump.

[0014] Preferably, the gas-proof protective component further includes: a mounting switch, which is fixedly installed on the inner side of the sleeve; the mounting switch is used to fit against the outer wall of the pipe truss; the mounting switch is electrically connected to another LED on the warning light.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] This invention employs a displacement measuring component that, in conjunction with a measuring unit, allows workers to quickly measure the positional data of various points on the steel pipes of a tubular truss. The measurement is rapid, and the use of a pressure sensor prevents excessive pressure on the steel pipes during alignment, thus avoiding damage. Simultaneously, it allows workers to easily understand the positioning of the steel pipes without visual inspection, ensuring accurate and efficient measurements. It guarantees that the data at each detection point is the data at which the pressure-measuring slider just contacts and adheres to the steel pipe, preventing excessive local pressure. This invention is better suited for simultaneous alignment and measurement, facilitating timely adjustment of the measuring slider's position.

[0017] By using pipe end limiters in conjunction with opposing drive components, it is possible for staff to ensure that the measured data is real-time and symmetrical, ensuring that it conforms to the actual symmetrical structure required by the pipe truss. This avoids the problem that changes in the curvature of the steel pipe after correction, which are difficult for humans to detect. It can ensure the accuracy of the data when taking readings. The spring can automatically control the two limiters to move inward and converge simultaneously, ensuring that both ends of the steel pipe are symmetrically positioned before the staff needs to measure the steel pipe.

[0018] Using gas-operated protective components allows for real-time contact with the outside of the steel pipe weld during measurement and correction. This is particularly suitable for long-distance splicing of steel pipes, improving safety during measurement and correction. Gas pressure testing can provide timely alerts in case of weld breakage or cracking. Furthermore, the sleeve's protective design on the outside of the weld ensures external protection even if the steel pipe breaks. Another advantage of gas-operated protective components is their ability to correspond to each weld on the steel pipe. During subsequent point measurements, because welds typically have protrusions, this design prevents the weld from contacting the pressure-measuring slider, which would affect measurement accuracy and increase the risk of weld breakage under pressure. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of a measuring device for welding and manufacturing steel structure pipe trusses according to the present invention;

[0020] Figure 2 This is a schematic diagram of the rear structure of a measuring device for welding and manufacturing steel pipe trusses according to the present invention.

[0021] Figure 3 This is a cross-sectional view of the internal structure of a measuring device for welding and manufacturing steel structure pipe trusses according to the present invention.

[0022] Figure 4 For the present invention Figure 2 Enlarged view of the structure of region B in the middle;

[0023] Figure 5 This is a schematic diagram of the measuring section structure of the present invention;

[0024] Figure 6 For the present invention Figure 3 Enlarged view of the structure of region C in the middle;

[0025] Figure 7 For the present invention Figure 5 Enlarged view of the structure of region D in the middle;

[0026] Figure 8 This is a schematic diagram of the opposing drive component structure of the present invention;

[0027] Figure 9 This is a schematic diagram of the pipe end limiting component structure of the present invention;

[0028] Figure 10 This is a schematic diagram of the gas-insulating protective component structure of the present invention;

[0029] Figure 11 This is a schematic diagram showing the installation position of the switch in this invention.

[0030] In the diagram: 1. Measuring mounting component; 101. Measuring I-beam; 102. Rotary mounting base; 103. Spring; 2. Measuring section; 201. Segmented measuring cylinder; 202. Positioning bolt; 203. Drive screw; 204. Scale line; 3. Displacement measuring component; 301. Measuring point slider; 302. Warning light; 303. Pressure measuring slider; 304. Pressure sensor; 305. Limiting rod; 306. Indicating needle; 4. Opposing drive component; 401. Opposing threaded rod; 402. Opposing slider; 5. Pipe end limiting component; 501. Limiting frame; 502. Adjusting stud; 503. Abutment cover; 504. Press switch; 6. Gas protection component; 601. Suction pipe; 602. Branch pipe; 603. Sleeve; 604. Expansion rubber pad; 605. Pressure supply pipe; 606. Pressure gauge; 607. Mounting switch. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Example 1: Please refer to Figures 1 to 11 As shown:

[0033] This invention provides a technical solution: a measuring device for welding and manufacturing steel structure pipe trusses, comprising a measuring mounting component 1, on which a row of measuring parts 2 are symmetrically mounted, the row of measuring parts 2 being used to measure the accuracy of the pipe truss; displacement measuring parts 3 are respectively mounted on the row of measuring parts 2; the displacement measuring parts 3 are used to eliminate the prestress of the pipe truss; opposing driving parts 4 are mounted on the measuring mounting component 1; two pipe end limiting parts 5 are mounted on the opposing driving parts 4; the pipe end limiting parts 5 are used to prevent data misreading; gas shielding parts 6 are mounted on the measuring mounting component 1; the gas shielding parts 6 are used to prevent weld cracking; the measuring mounting component 1 includes: a measuring I-beam 101 and a rotary mounting base 102, the rotary mounting base 102 being fixedly mounted on the measuring I-beam 101; annular covers are respectively provided on both sides of the rotary mounting base 102; and a through groove is provided on the measuring I-beam 101.

[0034] The measuring mounting component 1 further includes: a spring 103, which is fixedly installed inside the annular covers on both sides of the rotating mounting base 102; the measuring part 2 includes: a segmented measuring cylinder 201, positioning bolts 202, a drive screw 203, and scale lines 204. The end of the segmented measuring cylinder 201 is inserted into the measuring I-beam 101; two positioning bolts 202 are threaded onto the segmented measuring cylinder 201, and the two positioning bolts 202 pass through through slots provided on the measuring I-beam 101; the two positioning bolts 202 press against the measuring I-beam 101; the drive screw 203 is rotatably mounted on the segmented measuring cylinder 201; the drive screw... The tail of the 203 has a ring of insertion holes for inserting a pry bar; the segmented measuring cylinder 201 has scale lines 204; the tail of the segmented measuring cylinder 201 has two through holes for passing through bolts and anchoring it to the ground; the measuring part 2 allows for flexible adjustment of the quantity by the operator, making it more suitable for the number of measurement points required. It is easy to operate by inserting the end of the segmented measuring cylinder 201 into the measuring I-beam 101, and then threading the positioning bolts 202 through the through slots on the measuring I-beam 101 and tightening them with a wrench.

[0035] The displacement measuring component 3 includes: a measuring point slider 301, a warning light 302, a pressure measuring slider 303, a pressure sensor 304, and a limit rod 305. The pressure sensor 304 can be of type HZC-H1, and a matching display is used. The measuring point slider 301 is slidably mounted on the segmented measuring cylinder 201; the measuring point slider 301 is threadedly connected to the drive screw 203; the warning light 302 is embedded in the measuring point slider 301; the pressure measuring slider 303 is slidably mounted on the measuring point slider 301; the pressure sensor 304 is fixedly mounted on the pressure measuring slider 303, and the pressure sensor 304 is located on the measuring point slider 301. Inside; a spring is provided between the measuring point slider 301 and the pressure measuring slider 303; a limit rod 305 is fixedly installed on the measuring point slider 301; a pressure sensor 304 is used to detect local stress in the tube truss; the warning light 302 is equipped with two LEDs of different colors; the displacement measuring component 3 also includes: an indicator needle 306, which is fixedly installed on the measuring point slider 301 and aligned with the scale line 204. The displacement measuring component 3, in conjunction with the measuring unit 2, allows workers to quickly measure the position data of various points on the steel pipes of the tube truss. The measurement is fast, and this structure is better suited for various applications. For measuring long steel pipes, this structure utilizes pressure sensor 304 to facilitate workers' understanding of pressure values, especially at both ends of the steel pipe. This ensures accurate measurement while preventing excessive pressure during pipe alignment, which could cause damage. It also allows workers to easily monitor the pipe's position without visual inspection, ensuring accurate and efficient measurements. The data at each detection point is the data taken just as the pressure-measuring slider 303 comes into contact with the steel pipe, preventing excessive local pressure. This design is better suited for simultaneous alignment and measurement, facilitating timely adjustment of the measuring position of the measuring slider 301. The drive screw 203 drives the measuring point slider 301 to move, causing the pressure measuring slider 303 to press against the steel pipe until the pressure measuring slider 303 compresses the internal spring, causing the pressure sensor 304 to be squeezed. When there is a reading and the reading is close to 0, it indicates that the measuring point is in contact with the steel pipe and will not cause excessive compression. At this time, the position of the indicator needle 306 corresponding to the scale line 204 can be observed. If the steel pipe size is not up to standard, the pressure measuring slider 303 will not contact the steel pipe at all or will be excessively squeezed by the steel pipe. The data deviation corresponding to the pressure sensor 304 will be large. At this time, it is necessary to adjust and then observe the measurement data again.

[0036] The opposing drive component 4 includes: opposing threaded rod 401 and opposing slider 402. The opposing threaded rod 401 is rotatably mounted on the rotary mounting base 102. The opposing threaded rod 401 is fixedly mounted on the inner ends of two springs 103. The springs 103 are used to drive the opposing threaded rod 401 to rotate. Two opposing sliders 402 are slidably mounted on the measuring I-beam 101, and the two opposing sliders 402 are respectively threaded to both ends of the opposing threaded rod 401. The pipe end limiting component 5 includes: The components include a limit bracket 501, an adjusting stud 502, a stop cover 503, and a push switch 504. The limit bracket 501 is fixedly mounted on the opposing slider 402. The adjusting stud 502 is threadedly connected to the limit bracket 501, and the adjusting stud 502 is fastened to the limit bracket 501 by two nuts. The stop cover 503 is slidably inserted into the adjusting stud 502. The stop cover 503 is used to fit against the end of the tubular truss. The push switch 504 is fixedly mounted on the adjusting stud 502 and... The cover 503 presses against the push switch 504; a spring connects the cover 503 and the adjusting stud 502; the push switch 504 is electrically connected to the LED on the warning light 302. The use of a pipe end limiter 5 in conjunction with a counteracting drive 4 ensures that the measured data is real-time and symmetrical, preventing issues such as changes in the steel pipe's curvature and position after correction that are difficult for humans to detect. This ensures accurate readings. Simultaneously, this structure, in conjunction with the spring 103, automatically controls the two limiters 501 to move inwards simultaneously, ensuring that before measuring the steel pipe, the counteracting threaded rod 401 must be rotated to expand the cover 503 outwards. Otherwise, if the distance between the two covers 503 is less than the length of the steel pipe, the steel pipe cannot be properly installed for measurement. Both push switches 504 must be pressed; otherwise, the warning light 302 remains constantly lit.

[0037] In Example 2, based on Example 1, the gas-insulating protective component 6 includes: an intake pipe 601, branch pipes 602, and sleeves 603. The intake pipe 601 is fixedly installed on the rotary mounting base 102; a row of branch pipes 602 is fixedly installed on the intake pipe 601; valves are provided on the branch pipes 602; sleeves 603 are fixedly installed on each of the row of branch pipes 602, and the sleeves 603 are made of steel; the diameter of the sleeves 603 is larger than the distance between the pressure measuring slider 303 and the limiting rod 305; the sleeves 603 are located between a row of segmented measuring cylinders 201; the number of branch pipes 602 is adjusted according to the number of welds on the truss steel pipes, hereinafter referred to as steel truss steel pipes. The sleeve 603 includes an air intake pipe 601 connected to an external air intake pump; the gas protection component 6 also includes: an expansion rubber pad 604, a pressure supply pipe 605, and a pressure gauge 606. Expansion rubber pads 604 are fixedly installed at both ends inside the sleeve 603, and the two expansion rubber pads 604 are connected by a pipe fitting; a pressure supply pipe 605 is fixedly installed on the expansion rubber pad 604; a valve is provided on the pressure supply pipe 605; a pressure gauge 606 is fixedly installed on the side of the sleeve 603, and the pressure gauge 606 is used for leak detection; the pressure supply pipe 605 is used to connect to the air pump; the gas protection component 6 also includes: a mounting switch 607, which is fixedly installed inside the sleeve 603; the mounting switch... 607 is used to adhere to the outer wall of the tubular truss; the switch 607 is electrically connected to another LED on the warning light 302. The use of gas-operated protective component 6 allows for real-time adhesion to the outside of the steel pipe weld during measurement and correction, making it more suitable for long-distance splicing of steel pipes. This improves safety during measurement and correction. It can provide timely warnings of weld breakage or cracks through air pressure testing. Simultaneously, the sleeve 603, which protects the outside of the weld, provides external protection even if the steel pipe breaks, enhancing the structure's safety. Another function of the gas-operated protective component 6 is to correspondingly fit the steel... Each weld on the pipe can be protected during subsequent point measurements. Because the weld usually has a protrusion, it is important to prevent the weld from sticking to the pressure measuring slider 303, which would affect the measurement accuracy and make the weld more susceptible to breakage under pressure. The diameter of the sleeve 603 is larger than the distance between the pressure measuring slider 303 and the limit rod 305, so the sleeve 603 cannot be placed between the pressure measuring slider 303 and the limit rod 305. The installation switch 607 ensures that the sleeve 603 is properly fitted onto the steel pipe, preventing workers from forgetting to use the sleeve 603. This is because when the sleeve 603 is fitted onto the steel pipe, the outside of the steel pipe will press against the installation switch 607.

[0038] The working principle of this embodiment is as follows: First, during measurement, the structure is placed on the ground, and the steel pipe can be placed between the pressure measuring slider 303 and the limiting rod 305. At this time, the drive screw 203 can be rotated to drive the measuring point slider 301 to move, causing the pressure measuring slider 303 to press against the steel pipe until the pressure measuring slider 303 compresses the internal spring, causing the pressure sensor 304 to be squeezed and a reading is obtained. When the reading is close to 0, it indicates that the measuring point is in contact with the steel pipe and will not cause excessive compression. At this time, the position of the indicator needle 306 corresponding to the scale line 204 can be observed. Once the steel pipe size is not up to standard, the pressure measuring slider 303 will not contact the steel pipe at all or will be excessively squeezed by the steel pipe, and the data deviation corresponding to the pressure sensor 304 will be... The pressure may be too high, requiring adjustment before observing the measurement data. When fine-tuning the steel pipe is needed, the drive screw 203 can be rotated to move the measuring point slider 301, allowing the steel pipe to bend and straighten. Monitoring the straightening pressure can prevent excessive local pressure. If the measuring point slider 301 is pushed inwards, the steel pipe will be pushed forward and straightened via the limit rod 305. At this time, the pressure sensors 304 on the pressure measuring sliders 303 on both sides of the limit rod 305 can detect this in real time. Conversely, if the steel pipe is pushed outwards via the pressure measuring slider 303, the corresponding pressure sensor 304 can directly measure the pressure value. A pry bar can be inserted into the drive screw 203 to assist in labor-saving driving. Before measuring the steel pipe, the opposite direction needs to be rotated first. The threaded rod 401 controls the expansion of the abutment cover 503; otherwise, if the distance between the two abutment covers 503 is less than the length of the steel pipe, the steel pipe cannot be properly installed for measurement. During actual measurement, it is necessary to ensure that both ends of the steel pipe are pressed tightly against the abutment cover 503. With the opposing threaded rod 401 driven by the spring 103, the opposing slider 402 moves inward, causing the limit bracket 501 to move as well. This causes the adjusting stud 502 to press the push switch 504, at which point the LED on the warning light 302 will turn off. Both push switches 504 must be pressed, as the opposing sliders 402 move in opposite directions to maintain symmetry with the row of segmented measuring cylinders 201. Otherwise, the warning light 302 will remain constantly lit. The data at that time cannot be recorded and needs to be adjusted. At the same time, the staff can rotate the opposing threaded rod 401 in real time to drive the abutment cover 503 to move and detect the symmetry of the two ends of the steel pipe. After the sleeve 603 is put on the weld seam of the steel pipe for protection, the external air pump can be connected to the pressure pipe 605 to inflate the expansion rubber pad 604 so that it expands and adheres to the outer wall of the steel pipe. At this time, the installation switch 607 will also squeeze and adhere to the steel pipe, so that the other lamp on the warning light 302 can be turned off, thus providing a warning. At the same time, the external air pump can be connected to the air suction pipe 601 to suck air. At this time, open the valves on each branch pipe 602 and pay attention to the pressure gauge 606. If the pressure gauge 606 changes significantly afterward, it indicates that there is a leak and repair welding is required.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0040] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A measuring device for welding and manufacturing steel structure pipe trusses, comprising a measuring mounting component (1), wherein a row of measuring parts (2) are symmetrically mounted on the measuring mounting component (1), characterized in that: The row of measuring parts (2) is used to measure the accuracy of the tubular truss; each of the row of measuring parts (2) is equipped with a displacement measuring element (3); the displacement measuring element (3) is used to eliminate the prestress of the tubular truss; The measuring mounting component (1) is equipped with a counter-driving component (4); the counter-driving component (4) is equipped with two pipe end limiting components (5); the pipe end limiting components (5) are used to prevent data misreading; A gas shield (6) is installed on the measuring mounting component (1); the gas shield (6) is used to prevent weld cracking. The measuring mounting component (1) includes: a measuring I-beam (101) and a rotary mounting base (102), wherein the rotary mounting base (102) is fixedly mounted on the measuring I-beam (101); annular covers are provided on both sides of the rotary mounting base (102); and a through groove is provided on the measuring I-beam (101). The measuring unit (2) includes: a segmented measuring cylinder (201), positioning bolts (202), a drive screw (203), and a scale line (204). The end of the segmented measuring cylinder (201) is inserted into the measuring I-beam (101). Two positioning bolts (202) are threaded onto the segmented measuring cylinder (201), and the two positioning bolts (202) pass through through slots provided on the measuring I-beam (101). The two positioning bolts (202) are respectively squeezed into the through slots provided on the measuring I-beam (101). Press-fit measuring I-beam (101); a drive screw (203) is rotatably mounted on the segmented measuring cylinder (201); the tail of the drive screw (203) is provided with a ring of insertion holes, which are used to insert a pry bar; the segmented measuring cylinder (201) is provided with scale lines (204); the tail of the segmented measuring cylinder (201) is provided with two through holes, which are used to pass bolts through and anchor it to the ground; The displacement measuring component (3) includes: a measuring point slider (301), a warning light (302), a pressure measuring slider (303), a pressure sensor (304), and a limiting rod (305). The measuring point slider (301) is slidably mounted on the segmented measuring cylinder (201). The measuring point slider (301) is threadedly connected to the drive screw (203). The measuring point slider (301) is embedded with a warning light (302). The measuring point slider (301) is slidably mounted with a pressure measuring slider (303). The pressure measuring slider (304) is fixedly mounted on the pressure measuring slider (303), and the pressure sensor (304) is located inside the measuring point slider (301). A spring is provided between the measuring point slider (301) and the pressure measuring slider (303). The measuring point slider (301) is fixedly mounted with a limiting rod (305). The pressure sensor (304) is used to detect the local stress of the pipe truss. The warning light (302) is provided with two LED beads of different colors.

2. The measuring device for welding and manufacturing steel structure pipe trusses according to claim 1, characterized in that: The measuring mounting component (1) further includes a spring (103), and the spring (103) is fixedly installed in the annular cover on both sides of the rotary mounting base (102).

3. The measuring device for welding and manufacturing steel structure pipe trusses according to claim 1, characterized in that: The displacement measuring component (3) further includes an indicator needle (306), which is fixedly installed on the measuring point slider (301) and the indicator needle (306) is aligned with the scale line (204).

4. The measuring device for welding and manufacturing steel structure pipe trusses according to claim 2, characterized in that: The opposing drive component (4) includes: opposing threaded rod (401) and opposing slider (402). The opposing threaded rod (401) is rotatably mounted on the rotary mounting base (102). The opposing threaded rod (401) is fixedly mounted on the inner ends of the two springs (103). The springs (103) are used to drive the opposing threaded rod (401) to rotate. Two opposing sliders (402) are slidably mounted on the measuring I-beam (101), and the two opposing sliders (402) are respectively threaded to both ends of the opposing threaded rod (401).

5. A measuring device for welding and manufacturing steel structure pipe trusses according to claim 4, characterized in that: The pipe end limiting component (5) includes: a limiting frame (501), an adjusting stud (502), a stop cover (503), and a push switch (504). The limiting frame (501) is fixedly installed on the opposing slider (402). The adjusting stud (502) is threadedly connected to the limiting frame (501), and the adjusting stud (502) is fastened to the limiting frame (501) by two nuts. The stop cover (503) is slidably inserted into the adjusting stud (502). The stop cover (503) is used to fit the end of the pipe truss. The push switch (504) is fixedly installed on the adjusting stud (502), and the stop cover (503) presses against the push switch (504). A spring is connected between the stop cover (503) and the adjusting stud (502). The push switch (504) is electrically connected to the LED on the warning light (302).

6. A measuring device for welding and manufacturing steel structure pipe trusses according to claim 1, characterized in that: The gas protection component (6) includes: an air intake pipe (601), branch pipes (602) and sleeves (603). The air intake pipe (601) is fixedly installed on the rotary mounting base (102). A row of branch pipes (602) is fixedly installed on the air intake pipe (601). A valve is provided on the branch pipe (602). Sleeves (603) are fixedly installed on each of the row of branch pipes (602), and the sleeves (603) are made of steel. The diameter of the sleeves (603) is larger than the distance between the pressure measuring slider (303) and the limiting rod (305). The sleeves (603) are located between a row of segmented measuring cylinders (201). An air intake pump is connected to the air intake pipe (601).

7. A measuring device for welding and manufacturing steel structure pipe trusses according to claim 6, characterized in that: The gas-proof protective component (6) further includes: an expansion rubber pad (604), a pressure pipe (605), and a pressure gauge (606). The expansion rubber pads (604) are fixedly installed at both ends inside the sleeve (603), and the two expansion rubber pads (604) are connected by a pipe fitting. The pressure pipe (605) is fixedly installed on the expansion rubber pad (604). The pressure pipe (605) is equipped with a valve. The pressure gauge (606) is fixedly installed on the side of the sleeve (603), and the pressure gauge (606) is used for leak detection. The pressure pipe (605) is used to connect to the air pump.

8. A measuring device for welding and manufacturing steel structure pipe trusses according to claim 7, characterized in that: The gas protection component (6) further includes: a mounting switch (607), which is fixedly mounted on the inside of the sleeve (603); the mounting switch (607) is used to fit against the outer wall of the pipe truss; the mounting switch (607) is electrically connected to another lamp bead on the warning light (302).

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