High-strength steel structure joint and preparation process thereof

Abstract

The application discloses a high-strength steel structure node and a preparation process, and relates to the technical field of steel structure nodes. The high-strength steel structure node comprises a supporting frame, a first bolt, a moving frame, a second bolt and a multi-directional joint structure. The high-strength steel structure node can be applied to the installation of steel structures at multiple positions and angles, and a cross plate frame is arranged in the moving frame, the first half-sphere seat, the double-sided half-sphere seat and the second half-sphere seat, so that the overall structural strength is improved. In the preparation process of the node, the inner and outer walls of the steel structure node are subjected to high-quality plating through hot-dip aluminum plating and micro-arc oxidation treatment, so that the overall corrosion resistance of the node is improved. In the preparation process, a slotting device is optimally used. The slotting device can extend into the inside of a workpiece, and four slots with cross-shaped extension lines are formed in the inside of the workpiece, so that the perpendicularity of the positions of the four slots is ensured, the cross plate frame can be positioned and installed in the inside of the workpiece, and the working efficiency of the machining is improved.

Description

Technical Field

[0001] This invention relates to the field of steel joint technology, specifically to a high-strength steel structure joint and its manufacturing process. Background Technology

[0002] Most existing factory buildings are constructed using steel structures. During the construction of steel structures, numerous nodes are created, which need to be connected by node components. Therefore, the quality of these node components directly affects the safety of the entire steel structure.

[0003] Currently, Chinese patent application number CN202122566173.8 discloses a high-strength steel structure node, which relates to the field of steel structure fixing technology. It includes a support column, a slide rail on one side of the support column, a main body movably connected inside the slide rail, a cavity inside the main body, a threaded rod penetrating and movably connected inside the cavity, rotating blocks fixedly connected to both ends of the threaded rod penetrating the main body, a locking hole inside the rotating block, a slider movably connected to one side of the threaded rod, a threaded hole inside the slider that matches the threaded rod, and grooves on both sides of the slider.

[0004] However, existing high-strength steel structure nodes are usually of relatively fixed size. When connecting nodes, different types of nodes often need to be selected according to the size of the installation location, resulting in poor applicability. Moreover, in the node manufacturing process, most nodes are only rust-proofed on the outer wall, leading to the risk of internal corrosion. Furthermore, it is inconvenient to install and position cross-shaped reinforcing ribs inside the node fittings, affecting the overall structural strength and processing efficiency. Summary of the Invention

[0005] The purpose of this invention is to provide a high-strength steel structure node and its manufacturing process to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a high-strength steel structure node, comprising a support frame, a first bolt, a sliding frame, a second bolt, a multi-directional joint structure, a first support structure, and a second support structure. The sliding frame is inserted into the upper left side of the support frame, and the upper left front part of the support frame is fastened to the sliding frame by the first bolt. The multi-directional joint structure is inserted into the upper right side of the support frame, and the upper right front part of the support frame is fastened to the multi-directional joint structure by the second bolt. The first support structure is slidably disposed on the bottom side of the sliding frame, and the bottom right side of the first support structure is connected to the support frame. The second support structure is slidably connected to the lower left side of the multi-directional joint structure, and the bottom left side of the second support structure is connected to the support frame. The first support structure and... The second support structure is identical in structure and size. The multi-directional joint structure includes a first hemispherical seat inserted into the upper right side of the support frame. A double-sided hemispherical seat is rotatably connected to the right side of the first hemispherical seat. The bottom left side of the double-sided hemispherical seat is fastened to the first hemispherical seat by a first bolt rod that passes through it. A second hemispherical seat is rotatably connected to the right side of the double-sided hemispherical seat. The bottom left side of the second hemispherical seat is fastened to the double-sided hemispherical seat by a second bolt rod that passes through it. A cross plate frame is welded and fixed to the cylindrical part on the right side inside the second hemispherical seat. The bottom left side of the first hemispherical seat is connected to the second support structure. EPDM rubber rings are provided at the connection between the first hemispherical seat and the double-sided hemispherical seat, as well as at the connection between the double-sided hemispherical seat and the second hemispherical seat.

[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 plate frames are welded and fixed inside the moving frame, the cylindrical part on the left side of the first hemispherical seat, and the cylindrical part on the middle side of the double-sided hemispherical seat.

[0008] Preferably, the second support 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 internal threaded sleeve threaded to the upper side of the outer surface of the lower screw, a turntable integrally formed on the middle side of the outer surface of the internal threaded sleeve, an upper screw threaded to the upper side of the inner surface of the internal threaded sleeve, and a second support block rotatably connected to the top of the upper screw. The top side of the second support block is slidably connected to the first hemispherical seat.

[0009] Preferably, the inner threaded sleeve has internal thread grooves with opposite helical directions on its upper and lower sides, and the thread on the upper side of the outer surface of the lower screw is opposite to the thread on the lower side of the outer surface of the upper screw.

[0010] In addition, the present invention also provides a manufacturing process for high-strength steel structure nodes, comprising the following steps: S1. The cylindrical part inside the moving frame, the cylindrical part on the left side inside the first hemispherical seat, the cylindrical part on the middle side inside the double-sided hemispherical seat, and the cylindrical part on the right side inside the second hemispherical seat are cross-grooved using a grooving device. After processing, the cross plate frame is welded to the inside of the grooved part. S2. Grooves are cut into the middle side of the bottom of the shift frame and the middle side of the bottom of the first hemispherical seat. Then, the support frame, shift frame, first hemispherical seat, double-sided hemispherical seat and second hemispherical seat are subjected to hot-dip aluminizing and micro-arc oxidation treatment in sequence. The thickness of the aluminizing layer is 50-80μm and the thickness of the micro-arc oxidation ceramic film is 10-15μm. S3. Assemble the processed first hemispherical seat, double-sided hemispherical seat and second hemispherical seat into a multi-directional joint structure by using the first bolt and the second bolt. Then insert the shift frame into the left side of the support frame and lock it with the first bolt. Insert the multi-directional joint structure into the right side of the support frame and lock it with the second bolt. S4. Take the first support structure and the second support structure and weld them to both sides of the support frame respectively. Insert the top side of the first support structure into the groove in the middle of the bottom of the frame and insert the top side of the second support structure into the groove in the middle of the bottom of the first hemispherical seat to obtain a high-strength steel structure node.

[0011] Preferably, the grooving device includes a base, a support cylinder horizontally fixed to the upper side of the base, a sliding sleeve slidably connected to the left side of the outer surface of the support cylinder, a hollow cylinder fixedly connected to the left side of the sliding sleeve, a cross-grooving structure connected to the left side of the hollow cylinder, a shifting plate fastened to the middle side of the top of the sliding sleeve, a threaded rod threadedly connected to the middle side of the inner side of the shifting plate, a servo motor connected to the right end of the threaded rod, two guide rods respectively sliding through the front and rear sides of the shifting plate, a sliding plate fixedly connected to the right side of the bottom of the hollow cylinder, and a sliding seat slidably connected to the bottom of the sliding plate. The bottom of the servo motor is fastened to the base, the bottom right sides of the two guide rods are fixed to the base, and the bottom of the sliding seat is fixed to the base.

[0012] Preferably, the support cylinder is provided with protruding strips on both the front and rear sides, and the two protruding strips are respectively inserted and slidable inside the hollow cylinder on the front and rear sides. The threaded rod and the left end of the two guide rods are provided with limit plates.

[0013] Preferably, the cross-grooving structure includes a chamber cylinder fastened to the right side of the hollow cylinder, a first partition fixed to the left side of the chamber cylinder, a support cylinder seat fixed to the left side of the first partition, a first motor installed inside the middle side of the chamber cylinder, a drive bevel gear connected to the left output end of the first motor, four grooving assemblies meshing with the left side of the drive bevel gear, a second partition cylinder fastened to the left side of the support cylinder seat, a push column laterally slidably connected to the right side of the second partition cylinder, 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 drive bevel gear is rotatably connected to the middle side of the first partition cylinder, the grooving assemblies rotate through the middle side of the support cylinder seat, the right outer side of the push column is in sliding contact with the four grooving assemblies, and the second motor is fastened to the middle left side of the second partition cylinder.

[0014] Preferably, the second spacer has a through groove on the right side inside, and limit grooves are provided on both the upper and lower sides of the through groove. The push column has a thread on the middle side inside, and the right side of the push column has a conical structure. The push column has protrusions on both the upper and lower sides, and the two protrusions are respectively inserted into and slid in the two limit grooves. The side wall of the support cylinder has four mounting holes of equal diameter in the middle. The central axis of the four mounting holes is perpendicular to the axis of the support cylinder, and the central angle between two adjacent mounting holes is 90 degrees. The four slotting assemblies have the same structure and size, and are respectively inserted and rotated inside the four mounting holes.

[0015] Preferably, the slotting assembly includes a driven bevel gear that rotates through the outer middle side of the support cylinder seat. The side of the driven bevel gear away from the second spacer meshes with a driving bevel gear. A insert is slidably inserted through the middle side of the driven bevel gear, and the axis of the insert coincides with the axis of the driven bevel gear. A rotary cutter is provided on the side of the insert away from the teeth of the driven bevel gear. A hemispherical column is provided on the side of the insert near the teeth of the driven bevel gear. 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 beneficial effects of the present invention are: The high-strength steel structure node of the present invention can change the position and angle of the connection with the external steel structure, improve the adaptability of the connection and installation, and after changing the position, the support position of the two support structures can be adjusted to provide stable support force and ensure the stability of the node connection. Furthermore, cross plate frames are provided inside the shift frame, the cylindrical part on the left side inside the first hemispherical seat, the cylindrical part on the middle side inside the double-sided hemispherical seat, and the cylindrical part on the right side inside the second hemispherical seat to improve the overall structural strength.

[0017] In the fabrication process of high-strength steel structure nodes, this invention applies high-quality coatings to the inner and outer walls of the steel structure nodes through hot-dip aluminizing and micro-arc oxidation treatments, thereby improving the overall corrosion resistance of the nodes and avoiding the risk of internal corrosion caused by traditional processes that only protect the outer wall. Furthermore, the fabrication process optimizes the use of grooving equipment, which can extend into the interior of the workpiece to form four grooves with an extension line in the shape of a cross, ensuring the perpendicularity of the four grooves and facilitating the positioning and installation of the cross plate frame inside the workpiece, thus improving the processing efficiency.

[0018] The second partition of the present invention has a through groove on the right side inside, and limit grooves are provided on both the upper and lower sides of the through groove. The push column has a thread on the middle side inside, and protrusions are provided on both the upper and lower sides. The two protrusions are respectively inserted into and slid in the two limit grooves, which play a limiting and guiding role, so as to cooperate with the external screw to realize the lateral position movement of the push column. The right side of the push column has a conical structure, so that when it moves to the right, it drives the drilling assembly to move outward and prevents the push column from rotating. The side wall of the support has four mounting holes of equal diameter in the middle. The central axis of the four mounting holes is perpendicular to the axis of the support, and the central angle between two adjacent mounting holes is 90 degrees. The four drilling assemblies have the same structure and size, and respectively pass through and rotate inside the four mounting holes, so that after the four drilling assemblies move, four grooves with cross-shaped extension lines are machined on the outside. Attached Figure Description

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

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

[0021] Figure 3 This is a schematic diagram of the second support structure of the present invention.

[0022] Figure 4 This is a schematic diagram of the grooving equipment of the present invention.

[0023] Figure 5 This is a schematic diagram of the cross-groove structure of the present invention.

[0024] Figure 6 This is a schematic diagram of the internal connection structure of the first spacer, the support cylinder, and the second spacer of the present invention.

[0025] Figure 7 This is a schematic diagram of the structure of the slotting assembly of the present invention.

[0026] In the diagram: Support frame-1, First bolt-2, Moving frame-3, Second bolt-4, Multi-directional joint structure-5, First support structure-6, Second support structure-7, First hemispherical seat-51, Double-sided hemispherical seat-52, First bolt member-53, Second hemispherical seat-54, Second bolt member-55, Cross plate frame-56, First support block-71, Lower screw-72, Internal threaded sleeve-73, Turntable-74, Upper screw-75, Second support block-76, Pad-81, Support cylinder-82, Sliding sleeve-83, Hollow cylinder-84, Ten 85. Grooving structure, 86. Shifting plate, 87. Threaded column rod, 88. Servo motor, 89. Guide rod, 810. Sliding plate, 811. Sliding seat, 851. Cylinder, 852. First partition, 853. Support cylinder, 854. First motor, 855. Drive bevel gear, 856. Grooving assembly, 857. Second partition, 858. Push column, 859. External screw, 8510. Second motor, 8561. Driven bevel gear, 8562. Insert column, 8563. Rotary cutter, 8564. Hemispherical column, 8565. Spring. Detailed Implementation

[0027] To further explain the technical solution of the present invention, a detailed description is provided below through specific embodiments.

[0028] Please see Figure 1 , Figure 2 and Figure 3 This invention provides a high-strength steel structure node, including a support frame 1, a first bolt 2, a sliding frame 3, a second bolt 4, a multi-directional joint structure 5, a first support structure 6, and a second support structure 7. The sliding frame 3 is inserted into the upper left side of the support frame 1, and the upper left front part of the support frame 1 is fastened to the sliding frame 3 by the first bolt 2, allowing the position of the sliding frame 3 to be changed laterally, improving its adaptability to connection and installation with external steel structures. The multi-directional joint structure 5 is inserted into the upper right side of the support frame 1, and the upper right front part of the support frame 1 is fastened to the multi-directional joint structure 5 by the second bolt 4, allowing the position of the multi-directional joint structure 5 to be changed laterally. Furthermore, it can change the orientation and angle of the connecting end to achieve multi-directional support connection, improving the convenience and adaptability of connection and installation with external steel structures. The bottom side of the moving frame 3 is slidably provided with a first support structure 6, and the bottom right side of the first support structure 6 is connected to the support frame 1. The bottom left side of the multi-directional joint structure 5 is slidably connected with a second support structure 7, and the bottom left side 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 as to provide stable support force at the bottom through the first support structure 6 and the second support structure 7, ensuring the stability of the moving frame 3 and the multi-directional joint structure 5.

[0029] The multi-directional joint structure 5 includes a first hemispherical seat 51 inserted into the upper right side of the support frame 1. A double-sided hemispherical seat 52 is rotatably connected to the right side of the first hemispherical seat 51. The bottom left side of the double-sided hemispherical seat 52 is fastened to the first hemispherical seat 51 by a first bolt 53 passing through it. The connection surfaces of the double-sided hemispherical seat 52 and the first hemispherical seat 51 are both at a 45-degree angle, allowing for adjustment of their positions before fixation. A second hemispherical seat 54 is rotatably connected to the right side of the double-sided hemispherical seat 52. The bottom left side of the second hemispherical seat 54 is fastened to the double-sided hemispherical seat 52 by a second bolt 55 passing through it. The connection surfaces of the double-sided hemispherical seat 52 and the second hemispherical seat 54 are both at a 45-degree angle, allowing for adjustment of their positions before fixation. This further increases the adjustment range of the orientation angle of the second hemispherical seat 54, thus achieving multi-directional joints. The support connection is oriented, and a cross plate frame 56 is welded and fixed to the cylindrical part on the right side inside the second hemisphere 54. The cross plate frame 56 improves the overall structural strength. The bottom left side of the first hemisphere 51 is connected to the second support structure 7, so that the second support structure 7 can play a supporting role at the bottom and ensure the stability of the first hemisphere 51. EPDM rubber rings are provided at the connection between the first hemisphere 51 and the double-sided hemisphere 52, and at the connection between the double-sided hemisphere 52 and the second hemisphere 54, to improve the sealing of the connection and prevent water vapor from entering and causing corrosion. Flanges are integrally formed on the left side of the shift frame 3 and the right side of the second hemisphere 54. Cross plate frames 56 are welded and fixed inside the shift frame 3, the cylindrical part on the left side inside the first hemisphere 51, and the cylindrical part on the middle side inside the double-sided hemisphere 52, to further improve the overall structural strength.

[0030] The second support structure 7 includes 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 internal threaded sleeve 73 threaded 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 internal threaded sleeve 73, an upper screw 75 threaded to the upper side of the inside of the internal threaded sleeve 73, and a second support block 76 rotatably connected to the top 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 has internal thread grooves with opposite helical directions on its upper and lower sides. The thread on the upper side of the outer surface of the lower screw 72 is opposite to the thread on the lower side of the outer surface of the upper screw 75. By rotating the turntable 74, the internal threaded sleeve 73 rotates on the surfaces of the upper screw 75 and the lower screw 72, so that the upper screw 75 and the lower screw 72 move away from or closer to each other, thereby changing the support position of the second support block 76 on the first hemispherical seat 51 and improving the stability of the first hemispherical seat 51.

[0031] Please see Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 6and Figure 7 This invention provides a process for manufacturing high-strength steel structure nodes, comprising the following steps: S1. The cylindrical part inside the transfer frame 3, the cylindrical part on the left side inside the first hemispherical seat 51, the cylindrical part on the middle side inside the double-sided hemispherical seat 52, and the cylindrical part on the right side inside the second hemispherical seat 54 are cross-grooved using a grooving device. After processing, the cross plate frame 56 is welded to the inside of the grooved part. S2. Grooves are cut into the bottom middle side of the shift frame 3 and the bottom middle side of the first hemispherical seat 51. Then, the support frame 1, shift frame 3, first hemispherical seat 51, double-sided hemispherical seat 52 and second hemispherical seat 54 are sequentially subjected to hot-dip aluminum plating and micro-arc oxidation treatment. The hot-dip aluminum plating treatment involves immersing the support frame 1, shift frame 3, first hemispherical seat 51, double-sided hemispherical seat 52 and second hemispherical seat 54 at an angle of 30-40 degrees into the aluminum liquid for 2-3 minutes. The thickness of the aluminum plating layer is 50-80μm, and the thickness of the micro-arc oxidation ceramic film is 10-15μm. S3. The processed first hemispherical seat 51, double-sided hemispherical seat 52 and second hemispherical seat 54 are assembled into a multi-directional joint structure 5 by the first bolt member 53 and the second bolt member 55. Then, the shift frame 3 is inserted into the left side of the support frame 1 and locked by the first bolt 2. The multi-directional joint structure 5 is inserted into the right side of the support frame 1 and locked by 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 respectively. Insert the top side of the first support structure 6 into the groove in the middle of the bottom of the transfer frame 3, and insert the top side of the second support structure 7 into the groove in the middle of the bottom of the first hemispherical seat 51 to obtain a high-strength steel structure node.

[0032] The grooving equipment includes a base 81, a support cylinder 82 horizontally fixed to the upper side of the base 81, a sliding sleeve 83 slidably connected to the left side of the outer surface of the support cylinder 82, a hollow cylinder 84 fixedly connected to the left side of the sliding sleeve 83, so that the support cylinder 82 can provide support and guidance for the sliding sleeve 83 and the hollow cylinder 84, a cross-grooving structure 85 connected to the left side of the hollow cylinder 84, a shifting plate 86 fastened to the middle side of the top of the sliding sleeve 83, a threaded rod 87 threadedly connected to the middle side of the interior of the shifting plate 86, and a threaded rod 87 connected to the threaded rod 86. The servo motor 88 at the right end of the column rod 87 and two guide rods 89 that slide through the front and rear sides of the displacement plate 86 respectively serve to limit the position of the displacement plate 86 and prevent it from shifting. A sliding plate 810 is fixedly connected to the bottom right side of the hollow cylinder 84, and a sliding base 811 is slidably connected to the bottom of the sliding plate 810. The bottom of the servo motor 88 is fastened to the base 81. Under the action of the servo motor 88, the threaded column rod 87 rotates. The cooperation between the shift plate 86 and the guide rod 89 causes the shift plate 86 to move laterally on the guide rod 89, thereby causing the shift plate 86 to change the lateral position of the sliding sleeve 83 and the hollow cylinder 84 on the support cylinder 82. This, in turn, causes the cross-grooving structure 85 to move laterally. After the cross-grooving structure 85 is placed inside the cylindrical part, lateral grooving is performed in the cross direction. The bottom right side of both guide rods 89 is fixed to the pad 81, and the bottom of the sliding block 811 is fixed to the pad 81. The sliding plate 810 moves along the sliding block. The movement within the seat 811 improves the stability of the hollow cylinder 84, and the sliding plate 810 provides a certain supporting force to the hollow cylinder 84, ensuring the stability of the cross-groove structure 85 during lateral displacement. The support cylinder 82 is provided with protruding strips on both the front and rear sides, and the two protruding strips are inserted and slid into the front and rear sides of the hollow cylinder 84 respectively to further improve the stability of the movement of the hollow cylinder 84 and prevent it from shifting. The threaded column rod 87 and the left ends of the two guide rods 89 are provided with limit plates to prevent the displacement plate 86 from falling off.

[0033] The cross-grooving structure 85 includes a bin 851 fastened to the right side of the hollow cylinder 84, a first spacer 852 locked and fixed to the left side of the bin 851, a support 853 locked and fixed to the left side of the first spacer 852, a first motor 854 installed inside the middle side of the bin 851, a drive bevel gear 855 connected to the left output end of the first motor 854, and four grooving assemblies 856 meshing and driving the drive bevel gear 855 to the left side. Under the action of the first motor 854, the drive bevel gear 855 drives the four grooving assemblies 856 to rotate. A second spacer 857 locked and fixed to the left side of the support 853, and a pusher 858 laterally slidably connected to the right side inside the second spacer 857, so that the pusher 858 can be pushed through the second spacer 857. The push column 858 is supported and guided by an outer screw 859 threadedly connected to the left side of the push column 858 and a second motor 8510 connected to the left end of the outer screw 859. The outer right side of the push column 858 slides in contact with four slotting assemblies 856. The second motor 8510 is fastened to the middle left side of the second spacer 857. Under the action of the second motor 8510, the outer screw 859 rotates inside the push column 858, thereby driving the push column 858 to move laterally. After moving to the right, it abuts against the four slotting assemblies 856. The drive bevel gear 855 is rotatably connected to the middle side of the first spacer 852 to ensure the stability of the drive bevel gear 855's rotation. The slotting assembly 856 rotates through the middle side of the outer side of the support cylinder seat 853 to ensure the stability of the slotting assembly 856's rotational movement.

[0034] The second spacer 857 has a through groove on its right side, and limit grooves are provided on both the upper and lower sides of the through groove. The push column 858 has a thread on its middle side to cooperate with the external screw 859 to realize the lateral movement of the push column 858. The right side of the push column 858 has a conical structure so that it can drive the drilling assembly 856 to move when it moves to the right. The upper and lower sides of the push column 858 have protrusions, and the two protrusions are inserted into the two limit grooves to slide inside, which play a limiting and guiding role to prevent the push column 858 from rotating. The side wall of the support 853 has four mounting holes of equal diameter in the middle. The central axis of the four mounting holes is perpendicular to the axis of the support 853, and the central angle between two adjacent mounting holes is 90 degrees. The four drilling assemblies 856 have the same structure and size, and they are respectively inserted and rotated inside the four mounting holes so that after the four drilling assemblies 856 move, four grooves with cross-shaped extension lines are machined on the outside.

[0035] The slotting assembly 856 includes a driven bevel gear 8561 that rotates through the outer center of the support cylinder 853. The side of the driven bevel gear 8561 away from the second spacer 857 meshes with the driving bevel gear 855, so that the driven bevel gear 8561 is driven to rotate under the action of the driving bevel gear 855. A insert post 8562 slides through the inner center of the driven bevel gear 8561, and the axis of the insert post 8562 coincides with the axis of the driven bevel gear 8561. A rotating cutter 8563 is provided on the inner center of the insert post 8562 away from the tooth position of the driven bevel gear 8561. The inner center of the insert post 8562 is close to the driven bevel gear 8561. A hemispherical column 8564 is provided on one side of the gear tooth position. 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. The spherical surface of the hemispherical column 8564 is slidably connected to the push column 858. After the push column 858 moves to the right, it contacts the hemispherical column 8564, causing the insert column 8562 to drive the rotary cutter 8563 to move outward. After moving out, the rotation of the driving bevel gear 855 causes the driven bevel gear 8561 to drive the internal insert column 8562 and rotary cutter 8563 to rotate, thereby performing grooving treatment through the rotation of the rotary cutter 8563.

[0036] The working principle of the grooving equipment is as follows: First, the grooving equipment is installed on the side of the fixture position where cross grooving is required inside the transfer frame 3, the cylindrical part on the left side inside the first hemispherical seat 51, the cylindrical part on the middle side inside the double-sided hemispherical seat 52, and the cylindrical part on the right side inside the second hemispherical seat 54, so that the axis position of the support cylinder 853 coincides with the axis position of the workpiece to be processed, so as to use the grooving equipment. Second, during use, the drive control second motor 8510 is used to make the outer screw 859 rotate inside the push column 858 under the action of the second motor 8510, so as to drive the push column 858 to move laterally. After moving to the right, the right conical part of the push column 858 abuts against the hemispherical column 8564 of the four drilling assemblies 856, pushing them to move outward, so that the insert column 8562 and the rotating cutter 8563 move outward, and the rotating cutter 8563 extends outward from the outside of the support cylinder seat 853. Third, control the start of the first motor 854, 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 drive the internal insert 8562 and the rotating cutter 8563 to rotate, thereby driving the rotating cutter 8563 to rotate. Fourth, after the rotary cutter rotates, the servo motor 88 is started. Under the action of the servo motor 88, the threaded rod 87 rotates. Through the cooperation between the threaded rod 87 and the shift plate 86, the shift plate 86 is moved laterally on the guide rod 89. This causes the shift plate 86 to drive the sliding sleeve 83 and the hollow cylinder 84 to change their lateral positions on the support cylinder 82. This causes the cross-grooving structure 85 to move laterally, so that the four rotating rotary cutters 8563 can extend into the workpiece to perform grooving and form four grooves with cross-shaped extensions inside the workpiece.

[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 foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A high-strength steel structure node, comprising a support frame (1), characterized in that: A sliding frame (3) is inserted into the upper left side of the support frame (1), and the upper left side of the front part of the support frame (1) is fastened to the sliding 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 part of the support frame (1) is fastened to the multi-directional joint structure (5) by a second bolt (4). A first support structure (6) is slidably provided on the bottom side of the sliding frame (3), and the bottom right side of the first support structure (6) is connected to the support frame (1). A second support structure (7) is slidably connected on the bottom left side of the multi-directional joint structure (5), and the bottom left side 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. The multi-directional joint structure (5) includes a first bolt 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. The bottom left side of the double-sided hemispherical seat (52) is fastened to the first hemispherical seat (51) by a first bolt rod (53) that passes through it. The right side of the double-sided hemispherical seat (52) is rotatably connected to a second hemispherical seat (54). The bottom left side of the second hemispherical seat (54) is fastened to the double-sided hemispherical seat (52) by a second bolt rod (55) that passes through it. A cross plate frame (56) is welded and fixed to the cylindrical part on the right side inside the second hemispherical seat (54). The bottom left side of the first hemispherical seat (51) is connected to a second support 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. The high-strength steel structure node according to claim 1, characterized in that: Flanges are integrally formed on the left side of the moving frame (3) and the right side of the second hemisphere (54). Cross plate frames (56) are welded and fixed inside the moving frame (3), the cylindrical part on the left side of the first hemisphere (51) and the cylindrical part on the middle side of the double-sided hemisphere (52).

3. The high-strength steel structure node according to claim 1, characterized in that: The second support structure (7) includes 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 internal thread sleeve (73) threaded 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 internal thread sleeve (73), an upper screw (75) threaded to the upper side of the inside of the internal thread 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).

4. The high-strength steel structure node according to claim 3, characterized in that: The inner threaded sleeve (73) has internal threaded grooves with opposite spiral directions on its upper and lower sides. The thread on the upper side of the outer surface of the lower screw (72) is opposite to the thread on the lower side of the outer surface of the upper screw (75).

5. The fabrication process of the high-strength steel structure node according to any one of claims 1-4, characterized in that: Includes the following steps: S1. The inside of the moving frame (3), the cylindrical part on the left side of the first hemispherical seat (51), the cylindrical part on the middle side of the double-sided hemispherical seat (52) and the cylindrical part on the right side of the second hemispherical seat (54) are cross-grooved using a grooving device. After processing, the cross plate frame (56) is welded to the inside of the grooving. S2. Grooves are cut into the bottom middle side of the shift frame (3) and the bottom middle side of the first hemispherical seat (51). Then, the support frame (1), shift frame (3), first hemispherical seat (51), double-sided hemispherical seat (52) and second hemispherical seat (54) are hot-dip aluminum-plated and micro-arc oxidation treatments in sequence. The aluminum-plated layer thickness is 50-80μm and the micro-arc oxidation ceramic film thickness is 10-15μm. S3. The processed first hemispherical seat (51), double-sided hemispherical seat (52) and second hemispherical seat (54) are assembled into a multi-directional joint structure (5) by the first bolt member (53) and the second bolt member (55). Then, the shift frame (3) is inserted into the left side of the support frame (1) and locked by the first bolt (2). The multi-directional joint structure (5) is inserted into the right side of the support frame (1) and locked by the second bolt (4). S4. Take the first support structure (6) and the second support structure (7) and weld them to the two sides of the support frame (1). Insert the top side of the first support structure (6) into the groove on the bottom middle side of the shift frame (3) and insert the top side of the second support structure (7) into the groove on the bottom middle side of the first hemispherical seat (51) to obtain a high-strength steel structure node.

6. The fabrication process of a high-strength steel structure node according to claim 5, characterized in that: The grooving device includes a base (81), a support cylinder (82) horizontally fixed to the upper side of the base (81), a sliding sleeve (83) slidably connected to the left side of the outer surface of the support cylinder (82), a hollow cylinder (84) fixedly connected to the left side of the sliding sleeve (83), a cross-grooving structure (85) connected to the left side of the hollow cylinder (84), a shifting plate (86) fastened to the middle side of the top of the sliding sleeve (83), a threaded rod (87) threadedly connected to the middle side of the interior of the shifting plate (86), and a threaded rod (87) connected to the threaded rod (87). The servo motor (88) at the right end, two guide rods (89) that slide through the front and rear sides of the displacement plate (86) respectively, a slide plate (810) fixedly connected to the bottom right side of the hollow cylinder (84), and a slide base (811) slidably connected to the bottom of the slide plate (810) are provided. The bottom of the servo motor (88) is fastened to the pad (81), the bottom right side of the two guide rods (89) is fixed to the pad (81), and the bottom of the slide base (811) is fixed to the pad (81).

7. The fabrication process of a high-strength steel structure node according to claim 6, characterized in that: The support cylinder (82) is provided with protruding strips on both the front and rear sides, and the two protruding strips are respectively inserted into and slidable inside the hollow cylinder (84) on both the front and rear sides. The threaded rod (87) and the two guide rods (89) are provided with limit plates at their left ends.

8. The fabrication process of a high-strength steel structure node according to claim 6, characterized in that: The cross-grooving structure (85) includes a bin (851) fastened to the hollow cylinder (84) on the right side, a first partition (852) locked and fixed to the left side of the bin (851), a support cylinder seat (853) locked and fixed to the left side of the first partition (852), a first motor (854) installed inside the middle side of the bin (851), a drive bevel gear (855) connected to the output end of the left side of the first motor (854), four grooving assemblies (856) meshing with the left side of the drive bevel gear (855), a second partition (857) locked and fixed to the left side of the support cylinder seat (853), and a transverse... The push column (858) is slidably connected to the right side inside the second partition (857), the external screw (859) is threadedly connected to the left side inside the push column (858), and the 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 inside the first partition (852). The slotting assembly (856) rotates through the middle side outside the support cylinder (853). The right side of the push column (858) is in sliding contact with the four slotting assemblies (856). The second motor (8510) is fastened to the middle left side of the second partition (857).

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

10. The fabrication process of a high-strength steel structure node according to claim 8, characterized in that: The slotting assembly (856) includes a driven bevel gear (8561) that rotates through the outer center of the support (853). The driven bevel gear (8561) meshes with a driving bevel gear (855) on the side away from the second spacer (857). A insert (8562) slides through the inner center of the driven bevel gear (8561), and the axis of the insert (8562) coincides with the axis of the driven bevel gear (8561). 62) A rotary cutter (8563) is provided on the side of the inner middle of the driven bevel gear (8561) away from the tooth position. A hemispherical column (8564) is provided on the side of the inner middle of the insert (8562) close to the 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