High-strength steel structure joint and preparation process

Abstract

The invention discloses a high-strength steel structure joint and a preparation process. The high-strength steel structure joint comprises a bearing frame, a first bolt, a movable frame, a second bolt and a multi-directional joint structure. The high-strength steel structure joint can be suitable for multi-position-angle steel structure installation, and the cross-shaped plate frame is arranged in the movable frame, the first hemisphere base, the double-face hemisphere base and the second hemisphere base, so that the overall structural strength is improved; in the node preparation process, high-quality coating is conducted on the inner wall and the outer wall of the steel structure node in a hot dip aluminum plating and micro-arc oxidation treatment mode, so that the overall corrosion resistance of the node is improved; and in the preparation process, grooving equipment is optimally used, the grooving equipment can extend into the machined part, and four notches with cross-shaped extension lines are formed in the machined part, so that the position perpendicularity of the four notches is guaranteed, the cross plate frame is conveniently positioned and mounted in the machined part, and the working efficiency of machining is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of steel nodes, in particular to a high-strength steel structure node and a preparation process thereof. Background Art

[0002] Most of the existing factory buildings are built with steel structures. During the construction process of steel structures, a large number of nodes will appear, and the nodes need to be connected by node components. Therefore, the quality of the node components directly affects the safety of the entire steel structure.

[0003] At present, China's patent application number: CN202122566173.8 discloses a high-strength steel structure node, which relates to the field of steel structure fixing technology, including a pillar, a slideway is provided on one side of the pillar, and the interior of the slideway is movably connected to a main body, a cavity is provided inside the main body, and a threaded rod is passed through and movably connected to the interior of the cavity, and both ends of the threaded rod pass through the main body and are fixedly connected to a rotating block, a card hole is provided inside the rotating block, and a slider is movably connected to one side of the threaded rod, and a threaded hole is provided inside the slider, and the threaded hole is adapted to the threaded rod, and sliding grooves are provided on both sides of the slider.

[0004] However, the high-strength steel structure nodes in the existing technology are usually of fixed size. When connecting the nodes, it is often necessary to select different types of nodes according to the installation location and size, and the applicability range is poor. In the preparation process of the nodes, most of them are only treated with rust prevention on the outer wall of the nodes, resulting in the risk of internal corrosion. It is also inconvenient to install and position the cross-shaped reinforcement structure in the node pipe, which affects the overall structural strength and processing efficiency. Summary of the Invention

[0005] The object of the present invention is to provide a high-strength steel structure node and a preparation process to solve the problems raised in the above background technology.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a high-strength steel structure node, including a supporting frame, a first bolt, a moving frame, a second bolt, a multi-directional joint structure, a first supporting structure and a second supporting structure, a moving frame is inserted into the upper left side of the supporting frame, and the upper left side of the front of the supporting frame is fastened to the moving frame by the first bolt, a multi-directional joint structure is inserted into the upper right side of the supporting frame, and the upper right side of the front of the supporting frame is fastened to the multi-directional joint structure by the second bolt, a first supporting structure is slidingly provided on the bottom side of the moving frame, and the right side of the bottom of the first supporting structure is connected to the supporting frame, a second supporting structure is slidingly connected to the left side of the bottom of the multi-directional joint structure, and the left side of the bottom of the second supporting structure is connected to the supporting frame, the first supporting structure and The second supporting structure has the same structure and size. The multi-directional joint structure includes a first hemispherical seat inserted into the upper right side of the supporting frame. The right side of the first hemispherical seat is rotatably connected to a double-sided hemispherical seat. The left side of the bottom of the double-sided hemispherical seat is fastened to the first hemispherical seat by a first bolt rod penetrating its interior. The right side of the double-sided hemispherical seat is rotatably connected to the second hemispherical seat. The left side of the bottom of the second hemispherical seat is fastened to the double-sided hemispherical seat by a second bolt rod penetrating its interior. A cross plate frame is welded and fixed to the cylindrical part on the right side of the interior of the second hemispherical seat. The left side of the bottom of the first hemispherical seat is connected to the second supporting structure. The connection between the first hemispherical seat and the double-sided hemispherical seat and the connection between the double-sided hemispherical seat and the second hemispherical seat are both provided with EPDM rubber rings.

[0007] Preferably, flanges are integrally formed on the left side of the moving frame and the right side of the second hemispherical seat, and cross plates are welded and fixed to the inside of the moving frame, the cylindrical part on the left side of the first hemispherical seat, and the cylindrical part in the middle side of the double-sided hemispherical seat.

[0008] Preferably, the second supporting structure includes a first support block welded and fixed to the support frame on the left side, a lower screw rotatably connected to the middle of the first support block, an internally threaded sleeve threadedly connected to the upper side of the outer surface of the lower screw, a turntable integrally formed in the middle side of the outer surface of the internally threaded sleeve, an upper screw threadedly connected to the upper side of the inner part of the internally threaded sleeve, and a second support block rotatably connected to the top end of the upper screw, and the top side of the second support block is slidably connected to the first hemispherical seat.

[0009] Preferably, the internal threaded sleeve is provided with internal thread grooves with opposite spiral directions on the upper and lower sides respectively, and the thread on the upper side of the outer surface of the lower screw is arranged in opposite directions to the thread on the lower side of the outer surface of the upper screw.

[0010] In addition, the present invention also provides a process for preparing a high-strength steel structure node, comprising the following steps: S1. Using a slotting device, perform cross-grooving on the interior of the moving frame, the cylindrical portion on the left side of the first hemispherical seat, the cylindrical portion on the middle side of the double-sided hemispherical seat, and the cylindrical portion on the right side of the second hemispherical seat. After the processing, a cross plate frame is welded to the interior of the slotted portions. S2. Cutting grooves in the middle of the bottom of the moving frame and the middle of the bottom of the first hemispherical seat, and then sequentially hot-dip aluminizing and micro-arc oxidation treating the supporting frame, the moving frame, the first hemispherical seat, the double-sided hemispherical seat, and the second hemispherical seat, wherein the thickness of the aluminum coating is 50-80 μm and the thickness of the micro-arc oxidation ceramic film is 10-15 μm; S3. Assemble the processed first hemispherical seat, the double-sided hemispherical seat, and the second hemispherical seat using the first bolt member and the second bolt member to form a multi-directional joint structure. Then, insert the moving frame into the left side of the supporting frame and tighten it using the first bolt. Insert the multi-directional joint structure into the right side of the supporting frame and tighten it using the second bolt. S4. Take the first support structure and the second support structure and weld them on both sides of the support frame respectively, and insert the top side of the first support structure into the groove on the middle side of the bottom of the moving frame, and insert the top side of the second support structure into the groove on the middle side of the bottom of the first hemispherical seat to obtain a high-strength steel structure node.

[0011] Preferably, the grooving equipment includes a pad, a support tube fixed laterally on the upper middle side of the pad, a sleeve slidably connected to the left side of the outer surface of the support tube, a hollow tube fixedly connected to the left side of the sleeve, a cross scraping groove structure connected to the left side of the hollow tube, a shift plate fastened to the middle side of the top of the sleeve, a threaded column threadedly connected to the middle side of the inside of the shift plate, a servo motor connected to the right end of the threaded column, two guide rods sliding through the front and rear sides of the inside of the shift plate, a slide fixedly connected to the right side of the bottom of the hollow tube and a slide slidably connected to the bottom of the slide, the bottom of the servo motor is fastened to the pad, the right sides of the bottom of the two guide rods are fixed to the pad, and the bottom of the slide is fixed to the pad.

[0012] Preferably, the support tube is provided with convex strips on both the front and rear sides, and the two convex strips are respectively inserted and slid on the front and rear sides of the hollow tube, and the threaded column and the left ends of the two guide rods are provided with limiting plates.

[0013] Preferably, the cross scraper structure includes a silo fastened to the hollow cylinder on the right side, a first partition seat locked and fixed on the left side of the silo, a support tube seat locked and fixed on the left side of the first partition seat, a first motor installed on the middle side of the interior of the silo, an active bevel gear connected to the left output end of the first motor, four drill groove assemblies meshing with the left side of the active bevel gear, a second partition seat locked and fixed on the left side of the support tube seat, a push column slidingly connected to the right side of the interior of the second partition seat, an outer screw threadedly connected to the left side of the push column, and a second motor connected to the left end of the outer screw, the active bevel gear is rotatably connected to the middle side of the interior of the first partition seat, the drill groove assembly rotates through the middle side of the outside of the support tube seat, the right side of the push column is in sliding contact with the four drill groove assemblies, and the second motor is fastened to the middle of the left side of the second partition seat.

[0014] Preferably, a through groove is provided on the right side of the interior of the second partition seat, and limiting grooves are provided on the upper and lower sides of the through groove. A thread is provided on the middle side of the interior of the push column, and the right side of the push column is a conical structure. Protrusions are provided on the upper and lower sides of the push column, and the two protrusions are respectively inserted and slid on the inner sides of the two limiting grooves. Four mounting holes with equal apertures are provided in the middle of the side wall of the support cylinder seat. The central axes of the four mounting holes are perpendicular to the axis of the support cylinder seat, and the central angle between two adjacent mounting holes is 90 degrees. The four drill slot assemblies have the same structure and size, and respectively pass through and rotate inside the four mounting holes.

[0015] Preferably, the drilling groove assembly includes a driven bevel gear that rotates through the middle side of the outer side of the support cylinder seat, the side of the driven bevel gear away from the second spacer is meshed with the active bevel gear, a plug is slid through the middle side of the inner part of the driven bevel gear, and the axis of the plug coincides with the axis of the driven bevel gear, a rotary cutter is provided on the side of the inner middle side of the plug away from the driven bevel gear tooth position, a hemispherical column is provided on the side of the inner middle side of the plug close to the driven bevel gear tooth position, a spring is installed between the hemisphere of the hemispherical column and the driven bevel gear, and the spherical surface of the hemispherical column is slidably connected to the push column.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The high-strength steel structure node of the present invention can change the position angle of the connection with the external steel structure, improve the adaptability of the connection installation, and after the position is changed, the support position of the two supporting structures can be adjusted to provide stable supporting force and ensure the stability of the node connection. Cross plate frames are provided inside the moving frame, the cylindrical part on the left side of the first hemispherical seat, the cylindrical part on the middle side of the double-sided hemispherical seat, and the cylindrical part on the right side of the second hemispherical seat to improve the overall structural strength.

[0017] In the preparation process of high-strength steel structure nodes, the present invention performs high-quality coating on the inner and outer walls of the steel structure nodes by hot-dip aluminum plating and micro-arc oxidation treatment, so that the overall corrosion resistance of the nodes is improved, avoiding the risk of internal rust caused by traditional processes that only protect the outer walls. In addition, the use of grooving equipment is optimized in the preparation process. The grooving equipment can be extended into the interior of the workpiece to form four notches with cross-shaped extension lines inside the workpiece to ensure the verticality of the positions of the four notches, which facilitates the positioning and installation of the cross plate frame inside the workpiece, thereby improving the processing efficiency.

[0018] The second partition seat of the present invention is provided with a through groove on the right side, and limiting grooves are provided on the upper and lower sides of the through groove. A thread is provided on the middle side of the push column, and protrusions are provided on the upper and lower sides. The two protrusions are respectively inserted and slid on the inner sides of the two limiting grooves to play the role of limiting guides, so as to cooperate with the outer screw to realize the lateral position movement of the push column. The right side of the push column is conical in structure, so as to drive the drill groove assembly to move outward after moving to the right, and prevent the push column from rotating. Four mounting holes with equal apertures are provided in the middle of the side wall of the support cylinder seat. The central axes of the four mounting holes are perpendicular to the axis of the support cylinder seat, and the central angle between two adjacent mounting holes is 90 degrees. The four drill groove assemblies have the same structure and size, and are respectively rotated through the four mounting holes, so that after the four drill groove assemblies are actuated, four notches with cross-shaped extension lines are formed on the outside. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic structural diagram of the high-strength steel structure node of the present invention.

[0020] Figure 2 It is a structural schematic diagram of the multi-directional joint structure of the present invention.

[0021] Figure 3 Schematic diagram of the structure of the second supporting structure of the present invention.

[0022] Figure 4 It is a structural schematic diagram of the slotting equipment of the present invention.

[0023] Figure 5 It is a structural schematic diagram of the cross scraper structure of the present invention.

[0024] Figure 6 It is a schematic diagram of the connection structure inside the first partition, the support cylinder seat and the second partition of the present invention.

[0025] Figure 7 It is a structural schematic diagram of the drill slot assembly of the present invention.

[0026] In the figure: support frame 1, first bolt 2, moving frame 3, second bolt 4, multi-directional joint structure 5, first supporting structure 6, second supporting structure 7, first hemispherical seat 51, double-sided hemispherical seat 52, first bolt rod 53, second hemispherical seat 54, second bolt rod 55, cross plate frame 56, first support block 71, lower screw rod 72, internal threaded sleeve 73, turntable 74, upper screw rod 75, second support block 76, pad 81, support tube 82, sliding sleeve 83, hollow tube 84, ten Scraper groove structure-85, shift plate-86, threaded column-87, servo motor-88, guide rod-89, slide-810, slide-811, hopper-851, first partition-852, support cylinder seat-853, first motor-854, active bevel gear-855, drill groove assembly-856, second partition-857, push column-858, external screw-859, second motor-8510, driven bevel gear-8561, plug column-8562, rotary cutter-8563, hemispherical column-8564, spring-8565. DETAILED DESCRIPTION

[0027] In order to further explain the technical solution of the present invention, specific embodiments are described in detail below.

[0028] See also Figure 1 、 Figure 2 and Figure 3 The present invention provides a high-strength steel structure node, including a supporting frame 1, a first bolt 2, a moving frame 3, a second bolt 4, a multi-directional joint structure 5, a first supporting structure 6 and a second supporting structure 7. The moving frame 3 is inserted into the upper left side of the supporting frame 1, and the upper left side of the front of the supporting frame 1 is fastened to the moving frame 3 by the first bolt 2, and the position of the moving frame 3 can be changed laterally to improve the adaptability of connection and installation with the external steel structure. The multi-directional joint structure 5 is inserted into the upper right side of the supporting frame 1, and the upper right side of the front of the supporting frame 1 is fastened to the multi-directional joint structure 5 by the second bolt 4, and the position of the multi-directional joint structure 5 can be changed laterally. It can also change the orientation and position angle of the connection end to achieve multi-directional support connection, improve the convenience and adaptability of connection and installation with external steel structures, a first support structure 6 is slidingly set on the bottom side of the moving frame 3, and the right side of the bottom of the first support structure 6 is connected to the support frame 1, and the left side of the bottom of the multi-directional joint structure 5 is slidingly connected to the second support structure 7, and the left side of the bottom of the second support structure 7 is connected to the support frame 1, the first support structure 6 and the second support structure 7 have the same structure and size, so that the first support structure 6 and the second support structure 7 provide stable support force at the bottom to ensure the stability of the moving frame 3 and the multi-directional joint structure 5.

[0029] Among them, the multi-directional joint structure 5 includes a first hemispherical seat 51 inserted into the upper right side of the support frame 1, and the right side of the first hemispherical seat 51 is rotatably connected to the double-sided hemispherical seat 52, and the left side of the bottom of the double-sided hemispherical seat 52 is fastened to the first hemispherical seat 51 by a first bolt rod 53 penetrating the interior thereof, and the connection surfaces of the double-sided hemispherical seat 52 and the first hemispherical seat 51 are both inclined at 45 degrees, and the position between them can be changed and then fixed, and the right side of the double-sided hemispherical seat 52 is rotatably connected to the second hemispherical seat 54, and the left side of the bottom of the second hemispherical seat 54 is fastened to the double-sided hemispherical seat 52 by a second bolt rod 55 penetrating the interior thereof, and the connection surfaces of the double-sided hemispherical seat 52 and the second hemispherical seat 54 are both inclined at 45 degrees, and the position between them can be changed and then fixed, further improving the adjustment range of the second hemispherical seat 54 towards the position angle to achieve multi-directional joint structure 5 The support connection in the direction, a cross plate frame 56 is welded and fixed to the cylindrical part on the right side of the second hemispherical seat 54, and the overall structural strength is improved by the cross plate frame 56. The left side of the bottom of the first hemispherical seat 51 is connected to the second supporting structure 7, so that the second supporting structure 7 plays a supporting and bearing role at the bottom to ensure the stability of the first hemispherical seat 51. The connection between the first hemispherical seat 51 and the double-sided hemispherical seat 52 and the connection between the double-sided hemispherical seat 52 and the second hemispherical seat 54 are all provided with EPDM rubber rings to improve the sealing of the connection and avoid corrosion after water vapor enters the interior. The left side of the moving frame 3 and the right side of the second hemispherical seat 54 are both integrally formed with flanges. The interior of the moving frame 3, the cylindrical part on the left side of the first hemispherical seat 51 and the cylindrical part on the middle side of the double-sided hemispherical seat 52 are all welded and fixed with a cross plate frame 56 to further improve the overall structural strength.

[0030] The second support structure 7 includes a first support block 71 welded to the support frame 1 on the left side, a lower screw 72 rotatably connected to the middle of the first support block 71, an internally threaded sleeve 73 threadedly connected to the upper side of the outer surface of the lower screw 72, a turntable 74 integrally formed on the middle side of the outer surface of the internally threaded sleeve 73, an upper screw 75 threadedly connected to the upper side of the inner threaded sleeve 73, and a second support block 76 rotatably connected to the top end of the upper screw 75. The top side of the second support block 76 is slidably connected to the first hemispherical seat 51. The internal threaded sleeve 73 is provided with internal thread grooves with opposite spiral directions on the upper and lower sides respectively. The thread on the upper side of the outer surface of the lower screw rod 72 is arranged in an opposite shape to the thread on the lower side of the outer surface of the upper screw rod 75. By rotating the turntable 74, the internal threaded sleeve 73 is rotated on the surface of the upper screw rod 75 and the lower screw rod 72, so that the upper screw rod 75 and the lower screw rod 72 move away from or approach each other, thereby changing the supporting position of the second support block 76 on the first hemispherical seat 51 and improving the stability of the first hemispherical seat 51.

[0031] See also Figure 1 、 Figure 2 、 Figure 4 、 Figure 5 、 Figure 6and Figure 7 The present invention provides a process for preparing a high-strength steel structure node, comprising the following steps: S1. Use a slotting device to perform cross-grooving on the interior of the moving frame 3, the left cylindrical portion of the first hemispherical seat 51, the middle cylindrical portion of the double-sided hemispherical seat 52, and the right cylindrical portion of the second hemispherical seat 54. After the processing, weld the cross plate frame 56 to the inside of the slotted portions. S2. Cut a groove in the middle side of the bottom of the moving frame 3 and the middle side of the bottom of the first hemispherical seat 51, and then perform hot-dip aluminum plating and micro-arc oxidation treatment on the supporting frame 1, the moving frame 3, the first hemispherical seat 51, the double-sided hemispherical seat 52 and the second hemispherical seat 54 in sequence. The hot-dip aluminum plating treatment is to immerse the supporting frame 1, the moving frame 3, the first hemispherical seat 51, the double-sided hemispherical seat 52 and the second hemispherical seat 54 in aluminum liquid at an angle of 30-40 degrees for 2-3 minutes. The thickness of the aluminum plating layer is 50-80 μm, and the thickness of the micro-arc oxidation ceramic film is 10-15 μm. S3. Assemble the processed first hemispherical seat 51, double-sided hemispherical seat 52, and second hemispherical seat 54 using the first bolt rod 53 and the second bolt rod 55 to form a multi-directional joint structure 5. Then, insert the moving frame 3 into the left side of the supporting frame 1 and tighten it with the first bolt 2. Insert the multi-directional joint structure 5 into the right side of the supporting frame 1 and tighten it with the second bolt 4. S4. Take the first support structure 6 and the second support structure 7 and weld them on both sides of the support frame 1 respectively, and insert the top side of the first support structure 6 into the groove on the middle side of the bottom of the moving frame 3, and insert the top side of the second support structure 7 into the groove on the middle side of the bottom of the first hemispherical seat 51 to obtain a high-strength steel structure node.

[0032] The slotting device includes a seat 81, a support tube 82 laterally fixed to the upper middle side of the seat 81, a sleeve 83 slidably connected to the left side of the outer surface of the support tube 82, a hollow tube 84 fixedly connected to the left side of the sleeve 83, so that the support tube 82 plays a supporting and guiding role for the sleeve 83 and the hollow tube 84, a cross scraping groove structure 85 connected to the left side of the hollow tube 84, a shift plate 86 fastened to the middle side of the top of the sleeve 83, a threaded column 87 threadedly connected to the middle side of the inner side of the shift plate 86, and a threaded column 88 connected to the threaded column 89. The servo motor 88 at the right end of the column 87 and the two guide rods 89 that slide through the front and rear sides of the shift plate 86 respectively, play a role in limiting the shift plate 86 through the guide rods 89 to prevent the shift plate 86 from shifting. The slide 810 fixedly connected to the right side of the bottom of the hollow cylinder 84 and the slide 811 slidably connected to the bottom of the slide 810, the bottom of the servo motor 88 is fastened to the pad 81, and the threaded column 87 is rotated under the action of the servo motor 88. Through the threaded column 87 The cooperation between the shift plate 86 and the shift plate 86 drives the shift plate 86 to shift horizontally on the guide rod 89, so that the shift plate 86 drives the sliding sleeve 83 and the hollow cylinder 84 to change their horizontal positions on the support cylinder 82, thereby making the cross scraping groove structure 85 move horizontally. After the cross scraping groove structure 85 is placed inside the cylindrical part, the horizontal scraping groove processing in the cross direction is performed. The right sides of the bottom of the two guide rods 89 are fixed to the pad 81, and the bottom of the slide 811 is fixed to the pad 81. The movement in the seat 811 improves the stability of the hollow cylinder 84, and the slide 810 provides a certain supporting force on the hollow cylinder 84 to ensure the stability of the cross scraper structure 85 during lateral displacement. The support cylinder 82 is provided with convex strips on the front and rear sides, and the two convex strips are respectively inserted and slid on the front and rear sides of the hollow cylinder 84 to further improve the stability of the movement of the hollow cylinder 84 so that it does not rotate. The left ends of the threaded column 87 and the two guide rods 89 are provided with limit plates to prevent the shift plate 86 from falling off.

[0033] Among them, the cross scraper structure 85 includes a silo 851 fastened to the hollow cylinder 84 on the right side, a first partition 852 locked and fixed on the left side of the silo 851, a support cylinder seat 853 locked and fixed on the left side of the first partition 852, a first motor 854 installed on the middle side of the interior of the silo 851, an active bevel gear 855 connected to the left output end of the first motor 854, and four drill groove components 856 meshing and transmitting on the left side of the active bevel gear 855. Under the action of the first motor 854, the active bevel gear 855 drives the four drill groove components 856 to perform a rotation action, a second partition 857 locked and fixed on the left side of the support cylinder seat 853, and a push column 858 horizontally slidably connected to the right side of the second partition 857, so as to push the push column 858 through the second partition 857. The support guide is provided, and the outer screw 859 is threadedly connected to the left side of the push column 858 and the second motor 8510 is connected to the left end of the outer screw 859. The outer right side of the push column 858 is in sliding contact with the four drill slot assemblies 856. The second motor 8510 is fastened to the middle left side of the second partition 857. Under the action of the second motor 8510, the outer screw 859 is rotated inside the push column 858 to drive the push column 858 to move horizontally. After moving to the right, it abuts against the four drill slot assemblies 856. The active bevel gear 855 is rotatably connected to the middle side of the inside of the first partition 852 to ensure the stability of the rotation of the active bevel gear 855. The drill slot assembly 856 rotates through the middle side of the outer side of the support cylinder seat 853 to ensure the stability of the drill slot assembly 856 indexing action.

[0034] Among them, a through groove is provided on the right side of the interior of the second partition seat 857, and limiting grooves are provided on the upper and lower sides of the through groove. A thread is provided on the middle side of the push column 858 to cooperate with the external screw 859 to realize the lateral position movement of the push column 858. The right side of the push column 858 is a conical structure to drive the drill groove assembly 856 to move when moving to the right. Protrusions are provided on the upper and lower sides of the push column 858, and the two protrusions are respectively inserted and slid into the inner sides of the two limiting grooves to play the role of limiting guides to prevent the push column 858 from rotating. Four mounting holes with equal apertures are provided in the middle of the side wall of the support cylinder seat 853. The central axes of the four mounting holes are perpendicular to the axis of the support cylinder seat 853, and the central angle between two adjacent mounting holes is 90 degrees. The four drill groove assemblies 856 have the same structure and size, and are respectively rotated through the four mounting holes, so that after the four drill groove assemblies 856 are moved, four notches with cross-shaped extension lines are formed on the outside.

[0035] Among them, the drilling groove assembly 856 includes a driven bevel gear 8561 that rotates through the middle side of the outer side of the support cylinder seat 853, and the side of the driven bevel gear 8561 away from the second partition seat 857 is meshed with the active bevel gear 855, so as to drive the driven bevel gear 8561 to rotate under the action of the active bevel gear 855, and a plug post 8562 is slid through the middle side of the inner part of the driven bevel gear 8561, and the axis of the plug post 8562 coincides with the axis of the driven bevel gear 8561, and a rotary cutter 8563 is provided on the side of the inner middle side of the plug post 8562 away from the gear position of the driven bevel gear 8561, and the inner middle side of the plug post 8562 is close to the driven bevel gear 8561 A hemispherical column 8564 is provided on one side of the gear tooth position, and a spring 8565 is installed between the hemisphere of the hemispherical column 8564 and the driven bevel gear 8561. The spring 8565 provides a reset force to the hemispherical column 8564, and the spherical surface of the hemispherical column 8564 is slidingly connected with the push column 858. After the push column 858 moves to the right, it contacts the hemispherical column 8564, so that the plug column 8562 drives the rotary cutter 8563 to move outward. After moving out, as the active bevel gear 855 rotates, the driven bevel gear 8561 drives the internal plug column 8562 and the rotary cutter 8563 to rotate, thereby performing scraping processing through the rotation of the rotary cutter 8563.

[0036] The working principle of the slotting equipment is as follows: First, the slotting equipment is installed on the side of the fixture where the cross slotting process is to be performed on the inner portion of the moving frame 3, the cylindrical portion on the left side of the first hemispherical seat 51, the cylindrical portion in the middle of the double-sided hemispherical seat 52, and the cylindrical portion on the right side of the second hemispherical seat 54, using the support seat 81, so that the axis position of the support cylinder seat 853 coincides with the axis position of the workpiece to be processed, so that the slotting equipment can be used; Second, when in use, the second motor 8510 is driven and controlled to rotate the outer screw 859 inside the push post 858, thereby driving the push post 858 to move horizontally. After moving to the right, the cone on the right side of the push post 858 contacts the hemispherical posts 8564 of the four drill slot assemblies 856, pushing it outward, causing the plug post 8562 and the rotary cutter 8563 to move outward, extending the rotary cutter 8563 out of the support cylinder seat 853. Third, the first motor 854 is controlled to start, so that the first motor 854 drives the active bevel gear 855 to rotate. The rotation of the active bevel gear 855 causes the driven bevel gear 8561 to rotate the internal plug post 8562 and the rotary cutter 8563, thereby driving the rotary cutter 8563 to rotate. Fourth, after the rotary cutter rotates, the servo motor 88 is controlled to start, and the threaded column 87 is rotated under the action of the servo motor 88. The threaded column 87 and the shift plate 86 are matched to drive the shift plate 86 to shift laterally on the guide rod 89, so that the shift plate 86 drives the sliding sleeve 83 and the hollow cylinder 84 to change their lateral positions on the support cylinder 82, and then the cross scraping groove structure 85 is positioned laterally, so that the four rotating rotary cutters 8563 extend into the interior of the workpiece to be processed for grooving, forming four notches with cross-shaped extension lines inside the workpiece to be processed.

[0037] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A high-strength steel structure node, comprising a support frame (1), characterized in that: A shift frame (3) is inserted into the upper left side of the support frame (1), and the upper left side of the front portion of the support frame (1) is fastened to the shift frame (3) by a first bolt (2). A multi-directional joint structure (5) is inserted into the upper right side of the support frame (1), and the upper right side of the front portion of the support frame (1) is fastened to the multi-directional joint structure (5) by a second bolt (4). A first supporting structure (6) is slidingly provided on the bottom side of the shift frame (3), and the right side of the bottom of the first supporting structure (6) is connected to the support frame (1). A second supporting structure (7) is slidingly connected to the left side of the bottom side of the multi-directional joint structure (5), and the left side of the bottom of the second supporting structure (7) is connected to the support frame (1). The first supporting structure (6) and the second supporting structure (7) have the same structure and size. The multi-directional joint structure (5) includes a first supporting structure (6) inserted into the upper right side of the support frame (1). A hemispherical seat (51) is rotatably connected to a double-sided hemispherical seat (52) on the right side of the first hemispherical seat (51), and the left side of the bottom of the double-sided hemispherical seat (52) is fastened to the first hemispherical seat (51) by a first bolt rod (53) penetrating the interior thereof. The right side of the double-sided hemispherical seat (52) is rotatably connected to a second hemispherical seat (54), and the left side of the bottom of the second hemispherical seat (54) is fastened to the double-sided hemispherical seat (52) by a second bolt rod (55) penetrating the interior thereof. A cross plate frame (56) is welded and fixed to the cylindrical portion on the right side of the interior of the second hemispherical seat (54). The left side of the bottom of the first hemispherical seat (51) is connected to the second supporting structure (7). EPDM rubber rings are provided at the connection between the first hemispherical seat (51) and the double-sided hemispherical seat (52) and at the connection between the double-sided hemispherical seat (52) and the second hemispherical seat (54).

2. A high-strength steel structure node according to claim 1, characterized in that: The left side of the moving frame (3) and the right side of the second hemispherical seat (54) are integrally formed with flanges, and the inside of the moving frame (3), the cylindrical portion on the left side of the first hemispherical seat (51), and the cylindrical portion on the middle side of the double-sided hemispherical seat (52) are welded and fixed with cross plates (56).

3. The high-strength steel structure node according to claim 1, characterized in that: The second support structure (7) comprises a first support block (71) welded and fixed to the support frame (1) on the left side, a lower screw (72) rotatably connected to the middle of the first support block (71), an internally threaded sleeve (73) threadedly connected to the upper side of the outer surface of the lower screw (72), a turntable (74) integrally formed on the middle side of the outer surface of the internally threaded sleeve (73), an upper screw (75) threadedly connected to the upper side of the inner part of the internally threaded sleeve (73), and a second support block (76) rotatably connected to the top end of the upper screw (75), and the top side of the second support block (76) is slidably connected to the first hemispherical seat (51).

4. The high-strength steel structure node according to claim 1, characterized in that: Internal thread grooves with opposite spiral directions are respectively provided on the upper and lower sides of the internal thread sleeve (73), and the threads on the upper side of the outer surface of the lower screw (72) and the threads on the lower side of the outer surface of the upper screw (75) are arranged in opposite directions.

5. The process for preparing a high-strength steel structure node according to any one of claims 1 to 4, characterized in that: The following steps are involved: S1, using a slotting device to perform cross slotting on the inside of the moving frame (3), the left cylindrical portion inside the first hemispherical seat (51), the middle cylindrical portion inside the double-sided hemispherical seat (52), and the right cylindrical portion inside the second hemispherical seat (54), and after the slotting, weld the cross plate frame (56) inside the slotted portion; S2, cutting a groove in the middle side of the bottom of the moving frame (3) and the middle side of the bottom of the first hemispherical seat (51), and then hot-dip aluminum plating and micro-arc oxidation treatment are performed on the supporting frame (1), the moving frame (3), the first hemispherical seat (51), the double-sided hemispherical seat (52) and the second hemispherical seat (54) in sequence, wherein the thickness of the aluminum plating layer is 50-80 μm and the thickness of the micro-arc oxidation ceramic film is 10-15 μm; S3, assembling the processed first hemispherical seat (51), the double-sided hemispherical seat (52) and the second hemispherical seat (54) through the first bolt rod (53) and the second bolt rod (55) to form a multi-directional joint structure (5), then inserting the moving frame (3) into the left side of the supporting frame (1) and locking it with the first bolt (2), and inserting the multi-directional joint structure (5) into the right side of the supporting frame (1) and locking it with the second bolt (4); S4. Take the first support structure (6) and the second support structure (7) and weld them to both sides of the support frame (1), insert the top side of the first support structure (6) into the groove on the middle side of the bottom of the moving frame (3), and insert the top side of the second support structure (7) into the groove on the middle side of the bottom of the first hemispherical seat (51), so as to obtain a high-strength steel structure node.

6. The process for preparing a high-strength steel structure node according to claim 5, characterized in that: The slotting device comprises a seat (81), a support tube (82) laterally fixed to the upper middle side of the seat (81), a sleeve (83) slidably connected to the left side of the outer surface of the support tube (82), a hollow tube (84) fixedly connected to the left side of the sleeve (83), a cross scraping groove structure (85) connected to the left side of the hollow tube (84), a shift plate (86) fastened to the middle side of the top of the sleeve (83), a threaded column (87) threadedly connected to the middle side of the inner portion of the shift plate (86), and a screw threaded column (87) connected to the screw threaded column (87). ) at the right end thereof, two guide rods (89) respectively passing through and sliding on the front and rear sides of the interior of the shift plate (86), a slide (810) fixedly connected to the right side of the bottom of the hollow cylinder (84), and a slide seat (811) slidably connected to the bottom of the slide (810), the bottom of the servo motor (88) is fastened to the cushion seat (81), the right sides of the bottoms of the two guide rods (89) are fixed to the cushion seat (81), and the bottom of the slide seat (811) is fixed to the cushion seat (81).

7. The process for preparing a high-strength steel structure node according to claim 6, characterized in that: The support tube (82) is provided with convex strips on both the front and rear sides, and the two convex strips are respectively inserted and slid on the front and rear sides of the hollow tube (84). The left ends of the threaded column (87) and the two guide rods (89) are provided with limit plates.

8. The process for preparing a high-strength steel structure node according to claim 6, characterized in that: The cross scraper structure (85) includes a silo (851) fastened to the hollow cylinder (84) on the right side, a first spacer (852) locked and fixed to the left side of the silo (851), a support cylinder seat (853) locked and fixed to the left side of the first spacer (852), a first motor (854) installed on the middle side of the interior of the silo (851), an active bevel gear (855) connected to the left output end of the first motor (854), four drill groove assemblies (856) meshed and driven on the left side of the active bevel gear (855), a second spacer (857) locked and fixed to the left side of the support cylinder seat (853), a transverse A push column (858) is slidably connected to the right side of the interior of the second spacer (857), an external screw (859) is threadedly connected to the left side of the interior of the push column (858), and a second motor (8510) is connected to the left end of the external screw (859); the active bevel gear (855) is rotatably connected to the middle side of the interior of the first spacer (852); the drill groove assembly (856) is rotated through the middle side of the exterior of the support cylinder seat (853); the right side of the push column (858) is in sliding contact with the four drill groove assemblies (856); and the second motor (8510) is fastened to the middle part of the left side of the second spacer (857).

9. The process for preparing a high-strength steel structure node according to claim 8, characterized in that: A through groove is provided on the right side of the interior of the second partition seat (857), and limit grooves are provided on the upper and lower sides of the through groove. A thread is provided on the middle side of the interior of the push column (858), and the right side of the push column (858) is in a conical structure. Protrusions are provided on the upper and lower sides of the push column (858), and the two protrusions are respectively inserted and slid into the inner sides of the two limit grooves. Four mounting holes with equal apertures are provided in the middle of the side wall of the support cylinder seat (853). The central axes of the four mounting holes are perpendicular to the axis of the support cylinder seat (853), and the central angle between two adjacent mounting holes is 90 degrees. The four drill slot assemblies (856) have the same structure and size and are respectively rotated through the four mounting holes.

10. The process for preparing a high-strength steel structure node according to claim 8, characterized in that: The drill slot assembly (856) includes a driven bevel gear (8561) that rotates through the middle side of the outer side of the support cylinder seat (853), and the side of the driven bevel gear (8561) away from the second spacer (857) is meshed with the active bevel gear (855), and a plug post (8562) is slidably passed through the middle side of the inner side of the driven bevel gear (8561), and the axis of the plug post (8562) coincides with the axis of the driven bevel gear (8561). 62) A rotary cutter (8563) is provided on a side of the inner middle side away from the gear tooth position of the driven bevel gear (8561), and a hemispherical column (8564) is provided on a side of the inner middle side of the plug column (8562) close to the gear tooth position of the driven bevel gear (8561), a spring (8565) is installed between the hemisphere of the hemispherical column (8564) and the driven bevel gear (8561), and the spherical surface of the hemispherical column (8564) is slidably connected to the push column (858).

Images