A quality inspection device and method for steel structure welding structure

Abstract

The present invention relates to the field of steel welded structures, and specifically to a quality inspection device and method for steel welded structures, comprising a buffer mechanism, which is used to perform buffering treatment on an impact device during a resetting process; an impact mechanism, which is used to perform impact inspection treatment on a welding part of a steel structure; the impact mechanism is connected to the buffer mechanism, a frame is fixedly installed on the outer side of the buffer mechanism, a stretching door is fixedly installed on one end of the frame away from the buffer mechanism, and a welding part is plugged into the inner side of the frame. The quality inspection device and method for steel welded structures move toward an impact hammer through a buffer pad until it moves to the rear of the impact hammer, so as to reduce the reverse impact of the impact hammer due to inertia and reaction force during the resetting process, and also prevent a safety hazard caused by an operator manually touching the pendulum to stop the pendulum from swinging.

Description

Technical Field

[0001] The invention relates to the technical field of steel welded structures, and in particular to a quality detection device and method for steel welded structures. Background Art

[0002] The welding manufacturing of steel structures starts with the preparation work for welding production, which includes the process review of the structure, design of process plan and process procedure, process evaluation, preparation of process documents and quality assurance documents, ordering of raw materials and auxiliary materials, purchase and self-designed and manufactured assembly-welding equipment and equipment; then the welding structure manufacturing process really starts from the warehousing of materials, including material re-inspection and warehousing, material preparation and processing, assembly-welding, post-weld heat treatment, quality inspection, and finished product acceptance; it also includes rework, finishing and painting; and finally the whole process of qualified products being put into storage.

[0003] There are several problems with the existing steel welded structure quality inspection devices: 1. After the impact hammer collides with the steel structure, it will still move in the opposite direction to do pendulum motion due to its own potential energy. If it is not reduced or changed in time, there will be safety hazards; 2. The existing impact quality inspection is limited to a single impact treatment on the welding part of the steel-steel welded structure, which will lead to detection limitations and affect the measurement accuracy. Summary of the invention

[0004] The present invention provides a quality inspection device and method for steel structure welding structure to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: a quality inspection device for a steel structure welding structure, comprising a buffer mechanism, the buffer mechanism being used to buffer the impact device during the resetting process;

[0006] An impact mechanism, which is used to perform impact detection on the welding parts of the steel structure;

[0007] The impact mechanism is connected to the buffer mechanism, a frame is fixedly installed on the outside of the buffer mechanism, a stretching door is fixedly installed on one end of the frame away from the buffer mechanism, a welding piece is inserted on the inside of the frame, a disc is fastened to the outer end of the welding piece, a No. 1 hydraulic rod is fixedly connected to the side of the disc close to the welding piece, and the end of the No. 1 hydraulic rod away from the disc is fixedly connected to the outside of the frame;

[0008] The end of the welding part away from the disc is plugged with a support frame, a connecting rod is arranged below the welding part, one end of the connecting rod is fixedly connected to the support frame, and the end of the connecting rod away from the support frame is fixedly connected to the inner side of the surrounding frame.

[0009] Preferably, the buffer mechanism includes an inner hollow plate, a servo motor is fixedly mounted on the outer side of the inner hollow plate, a plug-in sleeve is fixedly connected to the end face of the output end of the servo motor, a T-shaped shaft is extruded inside the plug-in sleeve, the outer side of the T-shaped shaft is fixedly connected to the impact mechanism, and an impact hammer is fixedly mounted on the bottom of the T-shaped shaft.

[0010] Preferably, a No. 1 gear is fixedly connected to the outer side of the output end of the servo motor, a No. 2 gear is meshed and transmitted at the bottom of the No. 1 gear, a No. 1 threaded rod is threadedly connected to the center of the No. 2 gear, the No. 1 threaded rod is fixedly installed inside the inner hollow plate, an adapter plate is fixedly connected to the inner side of the No. 2 gear, a double-headed rod is fixedly connected to the side of the adapter plate away from the No. 2 gear, an embedded folding plate is fixedly connected to one end of the double-headed rod away from the adapter plate, the embedded folding plate is inserted through the inner side of the inner hollow plate and extends to the outside thereof, and a buffer pad is fixedly connected to the inner side of the embedded folding plate.

[0011] Preferably, the impact mechanism includes a No. 1 clamp sleeve and a No. 2 clamp sleeve, and the top of the No. 1 clamp sleeve and the No. 2 clamp sleeve are both provided with an impact assembly, and the No. 1 clamp sleeve and the No. 2 clamp sleeve are respectively extruded and adapted on both sides of the T-shaped shaft, and the ends of the No. 1 clamp sleeve and the No. 2 clamp sleeve away from the plug-in sleeve are fixedly connected with an embedded block, wherein the embedded block is inserted into the interior of the T-shaped shaft.

[0012] Preferably, one end of the No. 1 clamp sleeve close to the No. 2 clamp sleeve is fixedly connected to a No. 1 compensation plate, a side of the No. 1 compensation plate away from the No. 1 clamp sleeve is extruded and adapted with a No. 2 compensation plate, a side of the No. 2 compensation plate away from the No. 1 compensation plate is fixedly connected to the No. 2 clamp sleeve, and one end of the No. 2 clamp sleeve away from the No. 2 compensation plate is fixedly connected to a No. 1 magnet.

[0013] Preferably, the internal thread of the No. 1 clamp sleeve is connected to a No. 2 threaded rod, the interior of the No. 2 threaded rod is extruded and adapted to be fitted with a No. 1 bearing, the inner side of the No. 1 bearing is fixedly connected to a limit strip, the top of the limit strip is fixedly connected to a No. 2 magnet, wherein the No. 2 magnet maintains an attractive relationship with the No. 1 magnet, and the limit strip is tough.

[0014] Preferably, the impact assembly includes a top fixed frame, the interior of the top fixed frame is fixedly connected to a vertical rod, the top of the inner cavity of the vertical rod is fixedly connected to a No. 2 hydraulic rod, the top of the No. 2 hydraulic rod is fixedly connected to a sliding rod, the sliding rod is slidably adapted inside the vertical rod, and the top of the sliding rod is fixedly connected to an impact head.

[0015] Preferably, both ends of the impact head are symmetrically connected to limit rods, the inner cavity at the top of the impact head is fixedly connected to an inner support, the inner part of the inner support is rotatably connected to an impact blade, the bottom of the impact blade is fixedly connected to a hinge head, the bottom end of the hinge head is fixedly connected to a No. 3 threaded rod, and the No. 3 threaded rod is threadedly connected to the bottom of the impact head.

[0016] Preferably, the bottom end of the No. 3 threaded rod is fixedly connected with a bottom block, the outer side of the bottom block is extruded and adapted with a No. 2 bearing, the outer side of the No. 2 bearing is fixedly connected with an electric push rod, the end of the electric push rod away from the No. 2 bearing is fixedly connected with a top cone plate, the top of the top cone plate is inserted through the bottom of the impact head and extends into the interior thereof, the top of the top cone plate is extruded and adapted with a curved block, the outer side of the curved block is fixedly connected with an expansion plate, the inner side of the expansion plate is fixedly connected with an inner slide rod, and the inner slide rod is inserted into the interior of the impact head.

[0017] A quality inspection method for a steel structure welded structure comprises the following steps:

[0018] Step 1: Lower half impact detection, by starting the servo motor, the plug sleeve connected to its output end will lead the T-axis to deflect clockwise, and then the impact hammer fixedly connected to the bottom of the T-axis will impact the lower half of the weldment;

[0019] Step 2: Buffering force, the double-headed rod extends outward from the inside of the inner hollow plate, and then the embedded folding plate fixedly connected to the other end of the double-headed rod will move the buffer pad towards the impact hammer until it moves to the rear of the impact hammer. At this time, the buffer pad will reduce the force of the impact hammer's reverse impact due to inertia and reaction force during the resetting process;

[0020] Step 3: Adjustment. The inner walls of the two clamp sleeves are not completely close to the outside of the T-shaped shaft, so at this time, pull out the embedded block and rotate the two clamp sleeves, and finally reinsert the embedded block into the inside of the T-shaped shaft;

[0021] Step 4: Upper impact test: by starting the servo motor, the impact head will deflect, and the top of the weldment will be impacted by the impact head.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. Move the buffer pad toward the impact hammer until it moves to the rear of the impact hammer, so as to reduce the reverse impact of the impact hammer due to inertia and reaction force during the resetting process, and also prevent the operator from manually touching the pendulum to stop the pendulum from swinging, which may cause safety hazards.

[0024] 2. Through the attraction between the No. 2 magnet and the No. 1 magnet, the limit strip will bend and squeeze the No. 2 clamp sleeve, thereby pre-tightening the No. 1 clamp sleeve and the No. 2 clamp sleeve.

[0025] 3. By pulling out the embedded card block, rotating the two clamp sleeves, and finally reinserting the embedded card block into the interior of the T-shaft, the clamp sleeves can be corrected to the predetermined position.

[0026] 4. By rotating the No. 3 threaded rod forward when the servo motor is not started, the hinged head fixed on the top of the rod will deflect the impact blade upward through the inner support. At this time, the impact blade deflected upward will play a role in detecting the small contact surface impact on the weldment.

[0027] 5. By starting the electric push rod, the top cone plate fixedly connected to its bottom end moves upward and squeezes the curved block outward. The other end of the curved block is connected to the expansion plate, so the expansion plate will drive the inner slide rod to extend outward from both ends of the impact head, thereby playing a role in detecting the large contact surface impact on the weldment. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 The figure is a schematic diagram of the external structure of a quality inspection device for a steel structure welding structure according to the present invention.

[0029] Figure 2 It is a schematic diagram of the rear view structure of the present invention as a whole.

[0030] Figure 3 It is a structural schematic diagram of the buffer mechanism of the present invention.

[0031] Figure 4 It is a schematic diagram of the longitudinal section structure of the buffer mechanism of the present invention.

[0032] Figure 5 It is a schematic diagram of the vertical section structure of the buffer mechanism of the present invention.

[0033] Figure 6 It is a structural schematic diagram of some internal components of the buffer mechanism of the present invention.

[0034] Figure 7 It is a structural schematic diagram of the impact mechanism of the present invention.

[0035] Figure 8 It is a schematic cross-sectional view of some components of the impact mechanism of the present invention.

[0036] Fig. 9 It is a schematic diagram of the full cross-section structure of some components of the impact mechanism of the present invention.

[0037] Fig.10 For the present invention Fig. 9 Schematic diagram of the enlarged structure at point A in the middle.

[0038] Fig.11 It is a partial cross-sectional structural schematic diagram of the impact assembly of the present invention.

[0039] Fig.12 It is a schematic diagram of the longitudinal section structure of the impact assembly of the present invention.

[0040] Fig.13 It is a schematic diagram of the vertical cross-section structure of the impact assembly of the present invention.

[0041] Fig.14 It is a schematic cross-sectional structure diagram of the impact assembly of the present invention.

[0042] In the figure: 1, enclosure; 2, stretching door; 3, support frame; 4, connecting rod; 5, disc; 6, hydraulic rod No. 1; 7, buffer mechanism; 8, impact mechanism; 9, welding parts; 71, inner hollow plate; 72, servo motor; 73, plug-in sleeve; 74, buffer pad; 75, T-axis; 76, impact hammer; 77, gear No. 1; 78, gear No. 2; 79, threaded rod No. 1; 70, adapter plate; 701, double-headed rod; 702, embedded folding plate; 81, clamp sleeve No. 1; 82, clamp sleeve No. 2; 83, embedded block; 84, impact assembly; 85, compensation plate No. 1; 86, No. 2 compensation plate; 87, No. 1 magnet; 88, No. 2 threaded rod; 89, No. 1 bearing; 80, limit clip; 801, No. 2 magnet; 841, top fixing frame; 842, vertical rod; 843, No. 2 hydraulic rod; 844, sliding rod; 845, impact head; 846, limit rod; 847, inner support; 848, impact blade; 849, hinged head; 840, No. 3 threaded rod; 8401, bottom block; 8402, No. 2 bearing; 8403, electric push rod; 8404, top cone plate; 8405, curved surface block; 8406, expansion plate; 8407, inner sliding rod. DETAILED DESCRIPTION

[0043] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment. It should be noted that 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 making creative work are within the scope of protection of the present invention.

[0044] See also Figures 1 to 14 The present invention provides a technical solution: Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, it includes a buffer mechanism 7, which is used to buffer the impact device during the resetting process;

[0045] An impact mechanism 8, which is used to perform impact detection on the welding part of the steel structure;

[0046] The impact mechanism 8 is connected to the buffer mechanism 7, and a frame 1 is fixedly installed on the outer side of the buffer mechanism 7, and a stretching door 2 is fixedly installed on the end of the frame 1 away from the buffer mechanism 7, and a welding part 9 is inserted on the inner side of the frame 1, and a disc 5 is fastened to the outer end of the welding part 9, and a hydraulic rod No. 1 is fixedly connected to the side of the disc 5 close to the welding part 9, and the end of the hydraulic rod No. 1 6 away from the disc 5 is fixedly connected to the outer side of the frame 1, and a support frame 3 is inserted on the end of the welding part 9 away from the disc 5, and a connecting rod 4 is arranged below the welding part 9, one end of the connecting rod 4 is fixedly connected to the support frame 3, and the end of the connecting rod 4 away from the support frame 3 is fixedly connected to the inner side of the frame 1. By starting the No. 1 hydraulic rod 6, the disc 5 connected to its telescopic end will move outward, and there will be a certain distance and space between the disc 5 and the enclosure 1. Then the weldment 9 will be moved horizontally into the space and pass through the outside of the enclosure 1 until it extends to the other side. Then, the outer end of the weldment 9 will be connected to the disc 5 using fasteners. Then, the No. 1 hydraulic rod 6 will be retracted, and the inner end of the weldment 9 will pass through the support frame 3. Finally, the weldment 9 will be moved to the predetermined detection position to prepare for the subsequent impact detection. The position of the weldment 9 can be changed, so as to play the role of impact detection processing at any part of its surface, not limited to the welding part.

[0047] The buffer mechanism 7 includes an inner hollow plate 71, a servo motor 72 is fixedly installed on the outer side of the inner hollow plate 71, a plug sleeve 73 is fixedly connected to the end face of the output end of the servo motor 72, a T-shaped shaft 75 is extruded and adapted inside the plug sleeve 73, the outer side of the T-shaped shaft 75 is fixedly connected to the impact mechanism 8, and an impact hammer 76 is fixedly installed at the bottom of the T-shaped shaft 75. Then, the servo motor 72 is started, so that the plug sleeve 73 connected to the output end thereof will deflect clockwise with the T-shaped shaft 75, and the impact hammer 76 fixedly connected to the bottom of the T-shaped shaft 75 will impact the lower half of the weldment 9.

[0048] A No. 1 gear 77 is fixedly connected to the outer side of the output end of the servo motor 72, and a No. 2 gear 78 is meshed and transmitted at the bottom of the No. 1 gear 77, and a No. 1 threaded rod 79 is threadedly connected to the center of the No. 2 gear 78, and the No. 1 threaded rod 79 is fixedly installed inside the inner hollow plate 71, and an adapter plate 70 is fixedly connected to the inner side of the No. 2 gear 78, and a double-headed rod 701 is fixedly connected to the side of the adapter plate 70 away from the No. 2 gear 78, and an embedded folding plate 702 is fixedly connected to the end of the double-headed rod 701 away from the adapter plate 70, and the embedded folding plate 702 is inserted into the inner side of the inner hollow plate 71 and extends to the outside thereof, and a buffer pad 74 is fixedly connected to the inner side of the embedded folding plate 702. At the same time, as the output end of the servo motor 72 rotates clockwise, the No. 1 gear 77 fixedly connected to the outer side thereof will deflect clockwise, and the bottom of the No. 1 gear 77 is meshed with the No. 2 gear 78 for transmission, so the No. 2 gear 78 will rotate counterclockwise, wherein the center of the No. 2 gear 78 is threadedly connected to the No. 1 threaded rod 79, so as the No. 2 gear 78 rotates counterclockwise, it will move along the No. 1 threaded rod 79 toward the direction of the impact hammer 76, because the outer side of the No. 2 gear 78 is The double-headed rod 701 is connected to the adapter plate 70, so the double-headed rod 701 will extend outward from the inside of the inner hollow plate 71, and then the embedded folding plate 702 fixedly connected to the other end of the double-headed rod 701 will move toward the direction of the impact hammer 76 with the buffer pad 74 until it moves to the rear of the impact hammer 76, thereby reducing the reverse impact of the impact hammer 76 due to inertia and reaction force during the resetting process, and at the same time preventing the operator from manually touching the pendulum to stop the pendulum from swinging, which may cause safety hazards.

[0049] like Figure 7 , Figure 8 , Fig. 9 and Fig.10 As shown, the impact mechanism 8 includes a No. 1 clamp sleeve 81 and a No. 2 clamp sleeve 82, and the tops of the No. 1 clamp sleeve 81 and the No. 2 clamp sleeve 82 are both provided with an impact assembly 84. The No. 1 clamp sleeve 81 and the No. 2 clamp sleeve 82 are respectively squeezed and adapted on both sides of the T-shaped shaft 75, and the ends of the No. 1 clamp sleeve 81 and the No. 2 clamp sleeve 82 away from the plug sleeve 73 are fixedly connected with an embedded block 83, wherein the embedded block 83 is inserted into the interior of the T-shaped shaft 75. By respectively clamping the No. 1 clamp sleeve 81 and the No. 2 clamp sleeve 82 on both sides of the T-shaped shaft 75, and then inserting the embedded blocks 83 fixedly connected to the outer end surfaces of the No. 1 clamp sleeve 81 and the No. 2 clamp sleeve 82 into the T-shaped shaft 75, the No. 1 clamp sleeve 81 and the No. 2 clamp sleeve 82 are respectively fastened to the T-shaped shaft 75.

[0050] One end of the No. 1 clamp sleeve 81 close to the No. 2 clamp sleeve 82 is fixedly connected to the No. 1 compensation plate 85, and the No. 2 compensation plate 86 is squeezed and adapted on the side of the No. 1 compensation plate 85 away from the No. 1 clamp sleeve 81. The side of the No. 2 compensation plate 86 away from the No. 1 compensation plate 85 is fixedly connected to the No. 2 clamp sleeve 82, and the end of the No. 2 clamp sleeve 82 away from the No. 2 compensation plate 86 is fixedly connected to the No. 1 magnet 87. The internal thread of the No. 1 clamp sleeve 81 is connected to the No. 2 threaded rod 88, and finally the No. 2 threaded rod 88 is rotated forward so that the No. 2 threaded rod 88 moves along the The inner wall of the No. 1 clamp sleeve 81 spirally moves inward, and finally the No. 2 threaded rod 88 will extend from the other end of the No. 2 clamp sleeve 82, thereby playing a role in fastening the two clamp sleeves and the two to the T-shaped shaft 75. The internal extrusion of the No. 2 threaded rod 88 is adapted with a No. 1 bearing 89, and the inner side of the No. 1 bearing 89 is fixedly connected to a limit clip 80, and the top of the limit clip 80 is fixedly connected to a No. 2 magnet 801, wherein the No. 2 magnet 801 maintains an attractive relationship with the No. 1 magnet 87, and the limit clip 80 is tough. Then, the No. 2 threaded rod 88 is inserted and moved inward along the outer end of the No. 1 clamp sleeve 81. When the No. 2 threaded rod 88 extends from the other end of the No. 2 clamp sleeve 82, the No. 1 bearing 89 extruded and adapted inside the No. 2 threaded rod 88 will extend outward from the inside of the No. 2 clamp sleeve 82 with the limiting clip 80. Then, the No. 2 magnet 801 fixedly connected to the top of the limiting clip 80 will generate an attraction with the No. 1 magnet 87 fixedly connected to the outer end surface of the No. 2 clamp sleeve 82. At this time, the limiting clip 80 will bend and squeeze the No. 2 clamp sleeve 82, thereby playing the role of pre-tightening between the No. 1 clamp sleeve 81 and the No. 2 clamp sleeve 82. At this moment, the inner walls of the two clamp sleeves are not completely in close contact with the outer side of the T-shaped shaft 75, so the embedded block 83 is pulled outward, and the two clamp sleeves are rotated, and finally the embedded block 83 is reinserted into the interior of the T-shaped shaft 75, thereby correcting the clamp sleeves to the predetermined position.

[0051] like Fig.11 , Fig.12 , Fig.13 and Fig.14As shown, the impact assembly 84 includes a top fixed frame 841, the interior of the top fixed frame 841 is fixedly connected to a vertical rod 842, the top of the inner cavity of the vertical rod 842 is fixedly connected to a No. 2 hydraulic rod 843, the top of the No. 2 hydraulic rod 843 is fixedly connected to a sliding rod 844, the sliding rod 844 is slidably adapted inside the vertical rod 842, and the top of the sliding rod 844 is fixedly connected to an impact head 845. The top fixing frame 841 can be installed on the top of the No. 1 clamp sleeve 81 and the No. 2 clamp sleeve 82 respectively by fasteners, wherein the interior of the top fixing frame 841 is connected to the vertical rod 842. At this time, the No. 2 hydraulic rod 843 inside the vertical rod 842 is started, so that the sliding rod 844 fixedly connected to the top of the No. 2 hydraulic rod 843 will move up and down along the inner wall of the vertical rod 842, so as to realize the lifting and lowering of the impact head 845 fixedly connected to the top of the sliding rod 844, and at the same time, it also plays a role in adjusting the position of the impact head 845 to perform impact detection on the top of the weldment 9.

[0052] Therefore, by starting the servo motor 72, the impact head 845 will be deflected to perform impact detection on the top of the weldment 9, wherein the impact head 845 and the impact hammer 76 perform impact detection on the weldment 9 by swinging back and forth.

[0053] The two ends of the impact head 845 are symmetrically connected to the limit rod 846, the inner cavity at the top of the impact head 845 is fixedly connected to the inner support 847, the inner rotation of the inner support 847 is connected to the impact blade 848, the bottom of the impact blade 848 is fixedly connected to the hinge head 849, the bottom end of the hinge head 849 is fixedly connected to the third threaded rod 840, the third threaded rod 840 is threadedly connected to the bottom of the impact head 845, the bottom end of the third threaded rod 840 is fixedly connected to the bottom block 8401, the outer side of the bottom block 8401 is extruded with a second bearing 8402, and the outer side of the second bearing 8402 is fixedly connected to the electric push rod 8 403, one end of the electric push rod 8403 away from the No. 2 bearing 8402 is fixedly connected with a top cone plate 8404, the top of the top cone plate 8404 is inserted into the bottom of the impact head 845 and extends to the inside thereof, and the top of the top cone plate 8404 is extruded and adapted with a curved block 8405. In addition, when the servo motor 72 is not started, the No. 3 threaded rod 840 is rotated forward, so that the hinge head 849 fixedly connected to the top thereof will carry the impact blade 848 through the inner support 847 to deflect upward, and at this time, the impact blade 848 deflected upward will play a role in detecting the small contact surface impact on the weldment 9. The third threaded rod 840 spirally enters the interior of the impact head 845, and the top cone plate 8404 will not squeeze the curved surface block 8405, unless the electric push rod 8403 is started. The outer side of the curved surface block 8405 is fixedly connected with an expansion plate 8406, and the inner side of the expansion plate 8406 is fixedly connected with an inner slide bar 8407, and the inner slide bar 8407 is inserted into the interior of the impact head 845. At the same time, the electric push rod 8403 can also be started to move the top cone plate 8404 fixedly connected to its bottom end upward and squeeze the curved surface block 8405 outward, and the other end of the curved surface block 8405 is connected to the expansion plate 8406, so the expansion plate 8406 will drive the inner slide bar 8407 to extend outward from both ends of the impact head 845, thereby playing a role in detecting the large contact surface impact on the weldment 9.

[0054] When the present invention is used: first, start the No. 1 hydraulic rod 6, so that the disc 5 connected to its telescopic end will move outward, then pass the welding piece 9 from the outside of the enclosure 1 and extend to the other side, and then use fasteners to connect its outer end with the disc 5, and then shrink the No. 1 hydraulic rod 6, then the inner end of the welding piece 9 will pass through the support frame 3, until the welding piece 9 is moved to the predetermined detection position, ready for subsequent impact detection. Then start the servo motor 72, so that the plug-in sleeve 73 connected to its output end will deflect clockwise with the T-shaped shaft 75, and then the impact hammer 76 fixedly connected to the bottom of the T-shaped shaft 75 will impact the surface of the welding piece 9. At the same time, as the output end of the servo motor 72 rotates clockwise, the No. 1 gear 77 fixedly connected to its outer side will deflect clockwise accordingly, and the bottom of the No. 1 gear 77 is meshed with the No. 2 gear 78 for transmission, so the No. 2 gear 78 will rotate counterclockwise, wherein the center part of the No. 2 gear 78 is threadedly connected to the No. 1 threaded rod 79, so as the No. 2 gear 78 rotates counterclockwise, it will move along the No. 1 threaded rod 79 toward the direction of the impact hammer 76, because the outer side of the No. 2 gear 78 is connected to the double-headed rod 701 through the adapter plate 70, the double-headed rod 701 will extend outward from the inside of the inner hollow plate 71, and then the embedded folding plate 702 fixedly connected to the other end of the double-headed rod 701 will move towards the direction of the impact hammer 76 with the buffer pad 74 until it moves to the rear of the impact hammer 76, so as to reduce the impact force of the impact hammer 76 during the resetting process.

[0055] The first clamp sleeve 81 and the second clamp sleeve 82 are clamped on both sides of the T-shaped shaft 75 respectively, and then the embedded clamp blocks 83 fixedly connected to the outer end surfaces of the first clamp sleeve 81 and the second clamp sleeve 82 are inserted into the T-shaped shaft 75 to achieve the first clamp sleeve 81 and the second clamp sleeve 82 are respectively fastened to the T-shaped shaft 75 together, and then the second threaded rod 88 is inserted inward along the inside of the first clamp sleeve 81. When the second threaded rod 88 is inserted from the other side of the second clamp sleeve 82, the second threaded rod 88 is inserted into the second clamp sleeve 82. When one end is extended, the No. 1 bearing 89 squeezed and fitted inside the No. 2 threaded rod 88 will extend outward from the inside of the No. 2 clamp sleeve 82 with the limiting clamp strip 80, and then the No. 2 magnet 801 fixedly connected to the top of the limiting clamp strip 80 will generate attraction with the No. 1 magnet 87 fixedly connected to the outer end surface of the No. 2 clamp sleeve 82, and then the limiting clamp strip 80 will bend and squeeze the No. 2 clamp sleeve 82 to achieve the pre-tightening process between the No. 1 clamp sleeve 81 and the No. 2 clamp sleeve 82. Finally, the No. 2 threaded rod 88 is rotated forward again, so that the No. 2 threaded rod 88 moves inward along the inner wall of the No. 1 clamp sleeve 81 in a spiral, and finally the No. 2 threaded rod 88 will extend from the other end of the No. 2 clamp sleeve 82 to achieve the tightening process between the two clamp sleeves.

[0056] The top fixing frame 841 can be respectively installed on the top of the No. 1 clamp sleeve 81 and the No. 2 clamp sleeve 82 by fasteners, wherein the interior of the top fixing frame 841 is connected to the vertical rod 842, and then the No. 2 hydraulic rod 843 inside the vertical rod 842 is started, so that the sliding rod 844 fixedly connected to the top of the No. 2 hydraulic rod 843 will move up and down along the inner wall of the vertical rod 842, so as to realize the lifting and lowering of the impact head 845 fixedly connected to the top of the sliding rod 844. Therefore, by starting the servo motor 72, the impact head 845 will deflect accordingly, so as to perform impact detection processing on the top of the weldment 9. In addition, when the servo motor 72 is not started, the No. 3 threaded rod 840 is rotated in the forward direction, so that the hinged head 849 fixedly connected to its top end will carry the impact blade 848 to deflect upward through the inner support 847, and the electric push rod 8403 can also be started at the same time, so that the top cone plate 8404 fixedly connected to its bottom end moves upward and squeezes the curved block 8405 outward, and the other end of the curved block 8405 is connected to the expansion plate 8406, so the expansion plate 8406 will drive the inner slide rod 8407 to extend outward from both ends of the impact head 845.

[0057] The above-mentioned embodiments are only preferred embodiments of the present invention, and cannot be used to limit the scope of protection of the present invention. Various changes made by ordinary technicians in this field based on the above-mentioned concepts without creative work all fall within the scope of protection of the present invention.

Claims

1. A quality inspection device for steel structure welding structure, characterized in that: include: A buffer mechanism (7), the buffer mechanism (7) being used to perform buffering processing on the impact device during a resetting process; An impact mechanism (8), the impact mechanism (8) being used to perform impact detection processing on a welding part of a steel structure; The impact mechanism (8) is connected to the buffer mechanism (7); a frame (1) is fixedly mounted on the outside of the buffer mechanism (7); a stretching door (2) is fixedly mounted on one end of the frame (1) away from the buffer mechanism (7); a welding piece (9) is inserted into the inside of the frame (1); a disc (5) is fastened to the outer end of the welding piece (9); a first hydraulic rod (6) is fixedly connected to the side of the disc (5) close to the welding piece (9); and an end of the first hydraulic rod (6) away from the disc (5) is fixedly connected to the outside of the frame (1); The end of the welding part (9) away from the disc (5) is plugged into the support frame (3), a connecting rod (4) is provided below the welding part (9), one end of the connecting rod (4) is fixedly connected to the support frame (3), and the end of the connecting rod (4) away from the support frame (3) is fixedly connected to the inner side of the surrounding frame (1); The buffer mechanism (7) comprises an inner hollow plate (71), a servo motor (72) is fixedly mounted on the outer side of the inner hollow plate (71), a plug sleeve (73) is fixedly connected to the end face of the output end of the servo motor (72), a T-shaped shaft (75) is extruded and adapted inside the plug sleeve (73), the outer side of the T-shaped shaft (75) is fixedly connected to the impact mechanism (8), and an impact hammer (76) is fixedly mounted on the bottom of the T-shaped shaft (75); The outer side of the output end of the servo motor (72) is fixedly connected to a first gear (77), the bottom of the first gear (77) is meshed with a second gear (78), the center of the second gear (78) is threadedly connected to a first threaded rod (79), the first threaded rod (79) is fixedly installed inside the inner hollow plate (71), the inner side of the second gear (78) is fixedly connected to an adapter plate (70), the side of the adapter plate (70) away from the second gear (78) is fixedly connected to a double-headed rod (701), the end of the double-headed rod (701) away from the adapter plate (70) is fixedly connected to an embedded folding plate (702), the embedded folding plate (702) is inserted into the inner side of the inner hollow plate (71) and extends to the outside thereof, and the inner side of the embedded folding plate (702) is fixedly connected to a buffer pad (74).

2. A quality inspection device for steel structure welding structure according to claim 1, characterized in that: The impact mechanism (8) comprises a No. 1 clamp sleeve (81) and a No. 2 clamp sleeve (82), and the tops of the No. 1 clamp sleeve (81) and the No. 2 clamp sleeve (82) are both provided with an impact assembly (84), and the No. 1 clamp sleeve (81) and the No. 2 clamp sleeve (82) are respectively extruded and adapted on both sides of the T-shaped shaft (75), and one end of the No. 1 clamp sleeve (81) and the No. 2 clamp sleeve (82) away from the plug-in sleeve (73) is fixedly connected with an embedded block (83), wherein the embedded block (83) is inserted into the interior of the T-shaped shaft (75).

3. A quality inspection device for steel structure welding structure according to claim 2, characterized in that: One end of the No. 1 clamp sleeve (81) close to the No. 2 clamp sleeve (82) is fixedly connected to the No. 1 compensation plate (85), a side of the No. 1 compensation plate (85) away from the No. 1 clamp sleeve (81) is extruded and adapted with a No. 2 compensation plate (86), a side of the No. 2 compensation plate (86) away from the No. 1 compensation plate (85) is fixedly connected to the No. 2 clamp sleeve (82), and one end of the No. 2 clamp sleeve (82) away from the No. 2 compensation plate (86) is fixedly connected to the No. 1 magnet (87).

4. A quality inspection device for steel structure welding structure according to claim 3, characterized in that: The No. 1 clamp sleeve (81) is internally threadedly connected to a No. 2 threaded rod (88), the No. 1 bearing (89) is extruded and adapted inside the No. 1 bearing (89), the inner side of the No. 1 bearing (89) is fixedly connected to a limit clip (80), the top of the limit clip (80) is fixedly connected to a No. 2 magnet (801), wherein the No. 2 magnet (801) maintains an attractive relationship with the No. 1 magnet (87), and the limit clip (80) is tough.

5. The quality inspection device for steel structure welding structure according to claim 2 is characterized in that: The impact assembly (84) comprises a top fixing frame (841), the interior of the top fixing frame (841) is fixedly connected to a vertical rod (842), the top of the inner cavity of the vertical rod (842) is fixedly connected to a second hydraulic rod (843), the top of the second hydraulic rod (843) is fixedly connected to a sliding rod (844), the sliding rod (844) is slidably adapted inside the vertical rod (842), and the top of the sliding rod (844) is fixedly connected to an impact head (845).

6. A quality inspection device for steel structure welding structure according to claim 5, characterized in that: Both ends of the impact head (845) are symmetrically connected to limit rods (846); an inner support (847) is fixedly connected to the inner cavity at the top of the impact head (845); an impact blade (848) is rotatably connected inside the inner support (847); a hinged head (849) is fixedly connected to the bottom of the impact blade (848); a No. 3 threaded rod (840) is fixedly connected to the bottom end of the hinged head (849); and the No. 3 threaded rod (840) is threadedly connected to the bottom of the impact head (845).

7. A quality inspection device for steel structure welding structure according to claim 6, characterized in that: The bottom end of the No. 3 threaded rod (840) is fixedly connected to a bottom block (8401), the outer side of the bottom block (8401) is extruded and adapted with a No. 2 bearing (8402), the outer side of the No. 2 bearing (8402) is fixedly connected to an electric push rod (8403), the end of the electric push rod (8403) away from the No. 2 bearing (8402) is fixedly connected to a top cone plate (8404), the top of the top cone plate (8404) is inserted into the bottom of the impact head (845) and extends into the interior thereof, the top of the top cone plate (8404) is extruded and adapted with a curved block (8405), the outer side of the curved block (8405) is fixedly connected to an expansion plate (8406), the inner side of the expansion plate (8406) is fixedly connected to an inner slide rod (8407), and the inner slide rod (8407) is inserted into the interior of the impact head (845).

8. A quality inspection method for a steel structure welded structure, using the quality inspection device for a steel structure welded structure according to any one of claims 5 to 7, characterized in that: The following steps are involved: Step 1: Lower half impact detection, by starting the servo motor (72), the plug sleeve (73) connected to the output end thereof will deflect the T-shaped shaft (75) clockwise, and then the impact hammer (76) fixedly connected to the bottom of the T-shaped shaft (75) will impact the lower half of the weldment (9); Step 2: Buffering force, the double-headed rod (701) extends outward from the inside of the inner hollow plate (71), and then the embedded folding plate (702) fixedly connected to the other end of the double-headed rod (701) will move the buffer pad (74) towards the impact hammer (76) until it moves to the rear of the impact hammer (76). At this time, the buffer pad (74) will reduce the force of the impact hammer (76) in the reverse impact due to inertia and reaction force during the resetting process; Step 3: Adjustment: The inner walls of the two clamp sleeves are not completely in close contact with the outer side of the T-shaped shaft (75), so the embedded block (83) is pulled outwards, and the two clamp sleeves are rotated, and finally the embedded block (83) is reinserted into the interior of the T-shaped shaft (75); Step 4: Upper impact detection: by starting the servo motor (72), the impact head (845) will be deflected, and the top of the weldment (9) will be impacted by the impact head (845).

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