Magnetic field orientation module, CFRP planar piece and magnetic field orientation device of CFRP bending piece

Abstract

The utility model provides a kind of magnetic field orientation module, CFRP plane piece and the magnetic field orientation device of CFRP bending piece, it is related to composite processing field, module includes: magnet box, electromagnet shell, solenoid, column foot base and column foot adjusting stud.Multiple module supports are connected by hinge assembly, expand into the magnetic field orientation device of CFRP plane piece or, expand into the magnetic field orientation device of CFRP bending piece by hinge assembly and transition magnet box, the actual situation of the device can be adjusted angle flexibly according to steel structure surface, and angle can be fixed by angle positioning pin and angle positioning ring, to meet different engineering needs.

Description

Technical Field

[0001] This utility model relates to the field of composite material processing, and in particular to a magnetic field orientation device for a magnetic field orientation module, a CFRP planar part, and a CFRP bent part. Background Technology

[0002] Currently, most steel structure reinforcement methods involve directly applying carbon fiber cloth impregnated with resin to the steel structure surface. The adhesive layer between the steel structure and CFRP (carbon fiber reinforced polymer) is a resin-rich zone. During stress loading, the load is transferred to the CFRP through the adhesive layer, thus achieving shared load-bearing. However, when the stress exceeds the interfacial bearing capacity of the adhesive layer or the steel-resin interface, cracks easily form at the interface. These cracks tend to propagate along the steel-resin interface, the adhesive layer, and the resin-fiber interface, leading to CFRP debonding failure. Some researchers have added micron or nano fillers to the adhesive layer to enhance its strength and toughness. However, when micron or nano fillers are randomly distributed in the adhesive layer, their efficiency in improving the interfacial mechanical properties of the steel / CFRP interface is relatively limited. Utility Model Content

[0003] To address the technical problems existing in the prior art, this utility model provides a magnetic field orientation module, a magnetic field orientation device for CFRP planar parts and CFRP bent parts, which can conveniently and quickly generate a controllable magnetic field on the surface of complex and varied steel structures, thereby enabling the orientation of magnetic microneedles to enhance the reinforcement effect of CFRP fabric.

[0004] The technical solution is as follows: A magnetic field orientation module, the magnetic field orientation module comprising: The magnet box is square in shape. Four dovetail-shaped protrusions are provided on the upper surface of the magnet box. The four dovetail protrusions are arranged in a cross shape. The center line of the four dovetail protrusions corresponds to the center line of the corresponding side of the magnet box. One short side of the four rectangular platforms is aligned with the corresponding edge of the magnet box. A square groove is provided on the bottom surface of the magnet box away from the upper surface. A protrusion is provided at one end of each of the four rectangular platforms. Positioning holes are provided on the protrusions. An electromagnet housing and a solenoid coil are provided. The solenoid coil is installed inside the electromagnet housing, which is installed in a square groove. Current flows through the solenoid coil via a wire. The magnet box has four corners with adjustable studs and a base. Each adjustable stud is fitted with a base, and the material to be processed is placed at the bottom of the base. The distance between the helical coil at the bottom of the magnet box and the material to be processed is adjusted by adjusting the adjustable studs.

[0005] Optionally, the dovetail boss has an isosceles trapezoidal cross-section, the upper surface of the dovetail boss is rectangular, and the edge of the upper surface of the dovetail boss coincides with the longest side of the isosceles trapezoidal cross-section of the dovetail boss.

[0006] Optionally, connecting plate assemblies are respectively provided at the four corners of the upper surface of the magnet box; The connecting plate assembly includes a horizontal connecting plate and a vertical connecting plate, which are arranged perpendicularly to each other in space, and are perpendicular to the upper surface of the magnet box.

[0007] A magnetic field alignment device for a CFRP planar component includes the above-mentioned magnetic field alignment module, and further includes: a hinge assembly; When the number of magnetic field orientation modules is greater than 2, any two adjacent magnetic field orientation modules are connected by a hinge assembly, which includes: First mounting block, second mounting block, rotating shaft, sleeve, fixing sleeve, locating pin and spring; The first mounting block and the second mounting block have the same structure. The bottom of the first mounting block is provided with a groove that matches the shape of the dovetail boss. The first mounting block can be slidably mounted on the dovetail boss through the groove. A rotating shaft is set on the first mounting block, and the shaft body is fixedly installed on the reinforcing rib of the first mounting block. A ring of evenly distributed positioning recesses is set around the circumference of the rotating shaft. Two sleeves are provided on the second mounting block. The sleeve body is installed on the reinforcing rib of the second mounting block. The fixing sleeve is installed on the second mounting block. The fixing sleeve is installed with a positioning pin and a spring is installed on the positioning pin. For a set of hinge components: When the first mounting block is installed on the dovetail boss of a magnetic field orientation module, the second mounting block is installed on the dovetail boss of another magnetic field orientation module. The two ends of the rotating shaft of the first mounting block are respectively installed in the two sleeves of the second mounting block. The pin on the second mounting block presses against the positioning recess. The included angle of the first mounting block and the included angle of the second mounting block are 180°.

[0008] Optionally, the positioning recess is provided as an arc-shaped groove.

[0009] The ends of the first mounting block and the second mounting block are respectively provided with mounting holes that are adapted to the positioning holes on the protrusion.

[0010] A magnetic field orientation device for a CFRP bent component includes the above-mentioned magnetic field orientation module, and also includes a hinge assembly and a transition magnetic box. The number of magnetic field orientation modules must be at least two; Any two adjacent magnetic field orientation modules are connected by a transition magnetic box, wherein the transition magnetic box includes a first mounting surface, a second mounting surface and a transition surface; The first mounting surface is connected to the side of the magnetic field orientation module, the second mounting surface is connected to the side of another magnetic field orientation module, and the transition surface forms a 45° angle with the first mounting surface and the second mounting surface respectively, and the transition surface connects the first mounting surface and the second mounting surface. A set of hinge components is set between any two adjacent magnetic field orientation modules.

[0011] Optionally, the hinge assembly includes: First mounting block, second mounting block, rotating shaft, sleeve, fixing sleeve, locating pin and spring; The first mounting block and the second mounting block have the same structure. The bottom of the first mounting block is provided with a groove that matches the shape of the dovetail boss. The first mounting block can be slidably mounted on the dovetail boss through the groove. A rotating shaft is set on the first mounting block, and the shaft body is fixedly installed on the reinforcing rib of the first mounting block. A ring of evenly distributed positioning recesses is set around the circumference of the rotating shaft. Two sleeves are provided on the second mounting block. The sleeve body is installed on the reinforcing rib of the second mounting block. The fixing sleeve is installed on the second mounting block. The fixing sleeve is installed with a positioning pin and a spring is installed on the positioning pin. For a set of hinge components: When the first mounting block is installed on the dovetail boss of a magnetic field orientation module, the second mounting block is installed on the dovetail boss of another magnetic field orientation module. The two ends of the rotating shaft of the first mounting block are respectively installed in the two sleeves of the second mounting block. The pin on the second mounting block presses against the positioning recess. The included angle of the first mounting block and the included angle of the second mounting block are 90°.

[0012] Optionally, the positioning pin includes: a knob, a pin, a spring, and a positioning pin; The knob and ejector pin are integrated, with the ejector pin retaining sleeve threadedly connected, and the knob positioned outside the retaining sleeve. The fixed sleeve has an inner cavity. The top of the positioning pin extends from the end of the fixed sleeve away from the knob. The positioning pin has an annular platform on its body. One end of the spring abuts against the annular platform, and the other end of the spring abuts against the inner wall of the cavity of the fixed sleeve. The spring is sleeved on the positioning pin. When the positioning pin locks the positioning recess, the knob is tightened to make the ejector pin press against the positioning pin. The annular platform of the positioning pin blocks the outlet end of the fixing sleeve, and the positioning pin presses against the positioning recess.

[0013] The beneficial effects of the technical solution provided by this utility model embodiment include at least the following: The hinge assembly consists of two parts, both with grooves on their bottom surfaces and mounting holes at their tails. These mounting holes mate with positioning holes, allowing the corresponding first and second mounting blocks to be installed onto the corresponding dovetail-shaped bosses. A locating pin connects the mounting holes and the positioning holes to secure the hinge assembly.

[0014] For a set of hinge components, angled pins, in conjunction with positioning recesses, allow the magnet boxes of two magnetic field orientation modules to form a specific angle, 180 degrees or 90 degrees, to suit different types of CFRP panels. The angle positioning pin consists of a push pin, a spring, and a positioning pin, all coaxial. The spring compresses the positioning pin, ensuring it remains in contact with the angle positioning ring. The push pin is threaded to the housing; rotating the push pin allows it to move back and forth within the housing, pressing the positioning pin to maintain a fixed angle. The angle positioning ring is a gear-like circular ring with arc-shaped recesses at each required fixed angle position, allowing the positioning pin to extend and retract within them.

[0015] With the aforementioned structure, the device can flexibly adjust the angle according to the actual conditions of the steel structure surface, and can fix the angle through angle positioning pins and angle positioning rings to meet different engineering needs. Meanwhile, the dovetail groove design on the top of the magnet box provides excellent expandability; multiple magnet boxes can be assembled with hinges into arrays of different shapes, further enhancing its adaptability to complex steel structure surfaces.

[0016] With the above structure, the device can adjust the magnetic field strength of the electromagnet in real time, effectively achieving adsorption and detachment on the steel structure surface, and has great convenience in actual construction applications. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall module structure provided in an embodiment of the present utility model; Figure 2 This is a first-person exploded view of the module provided in this embodiment of the utility model; Figure 3 This is a second-view exploded view diagram of the module provided in this embodiment of the utility model; Figure 4 This is an exploded view of the hinge assembly provided in this embodiment of the utility model; Figure 5 This is a cross-sectional schematic diagram of the hinge assembly provided in an embodiment of the present invention; Figure 6 This is a schematic diagram of a magnetic field orientation device for a CFRP planar component with two connected modules provided in this embodiment of the present invention; Figure 7 This is a schematic diagram of a magnetic field orientation device for a CFRP bent component with two connected modules provided in an embodiment of this utility model; Figure 8 This is a schematic diagram of the magnetic field orientation device for the CFRP bent part with three modules connected by the hinge assembly provided in this embodiment of the utility model. Figure 9 This is a schematic diagram illustrating the application of the modules and devices provided in this embodiment of the utility model.

[0019] Icon labels: 100. Magnet box; 101. Dovetail boss; 102. Protrusion; 200. Electromagnet housing; 201. Helical coil; 301. Horizontal connecting plate; 302. Longitudinal connecting plate; 401. First mounting block; 402. Second mounting block; 403. Rotating shaft; 4031. Positioning recess; 404. Sleeve; 405. Fixing sleeve; 4061. Knob; 4062. Ejector pin; 4063. Spring; 4064. Positioning pin; 500. Transition magnetic box; 600. Column base; 700. Column adjusting bolt; a. Small area CFRP flat part; b. Large area CFRP flat part; c. CFRP bent part. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0021] Unless otherwise defined, the technical or scientific terms used in this invention shall have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms "first," "second," and similar terms used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms "an," "a," or "the" do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. The terms "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect.

[0022] It should be noted that the terms "upper", "lower", "left", "right", "front", and "back" used in this utility model are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0023] like Figures 1 to 9 As shown, a magnetic field orientation module includes: a magnet box 100, an electromagnet housing 200, a solenoid coil 201, a column base 600, and column adjustment studs. The magnet box 100 is square in shape, and four dovetail-shaped protrusions 101 are provided on the upper surface of the magnet box 100. The dovetail-shaped protrusions 101 protrude from the upper surface of the magnet box 100 and are arranged in a cross shape. The center lines of the four dovetail-shaped protrusions 101 correspond to the center lines of the corresponding sides of the magnet box 100. One short side of each of the four rectangular protrusions corresponds to the edge of the magnet box 100. The back of the magnet box 100... A square groove is provided on the bottom surface of the upper surface, and four rectangular platforms are respectively provided with protrusions 102 at opposite ends. Positioning holes are provided on the protrusions 102. The solenoid coil 201 is installed inside the electromagnet housing 200, which is installed in the square groove. Current flows through the solenoid coil 201 via a wire. Adjustable studs are provided at the four corners of the magnet box 100, and each stud is provided with a stud base 600. The material to be processed is placed at the bottom of the stud base 600. The distance between the solenoid coil 201 at the bottom of the magnet box 100 and the material to be processed is adjusted by the studs. The stud adjusting bolts 700 and the stud bases 600 are existing technologies. The stud adjusting bolts 700 consist of bolts and nuts, etc., to achieve lifting and lowering adjustment.

[0024] The dovetail-shaped boss 101 has an isosceles trapezoidal cross section, and the upper surface of the dovetail-shaped boss 101 is rectangular. The edge of the upper surface of the dovetail-shaped boss 101 coincides with the longest side of the isosceles trapezoidal cross section of the dovetail-shaped boss 101.

[0025] Connecting plate assemblies are respectively provided at the four corners of the upper surface of the magnet box 100; The connecting plate assembly includes a horizontal connecting plate 301 and a vertical connecting plate 302. The horizontal connecting plate 301 and the vertical connecting plate 302 are arranged perpendicularly to each other in space. The horizontal connecting plate 301 and the vertical connecting plate 302 are respectively perpendicular to the upper surface of the magnet box 100.

[0026] In this embodiment, the top surface of the magnet box 100 is provided with dovetail-shaped bosses 101 with positioning holes in four directions. The cross-section of the dovetail-shaped bosses 101 is trapezoidal, that is, similar to a dovetail-shaped boss. Bolt holes are provided at the four corners of the top and bottom surfaces, and the height-adjustable column feet are connected to the magnet box 100 through these bolt holes. Connecting plates are provided on the four sides of the top surface. Connecting plates are provided on both sides of the transition magnet box.

[0027] This utility model achieves a quick connection between the angle-fixed hinge and the magnet box 100 by using a dovetail groove with a positioning pin. Depending on the different angle requirements of the steel structure surface during use, the angle positioning pin and the angle positioning ring can be used to form different angle working conditions, thereby installing it on the steel structure surface at different angles. When the electromagnet power is turned on, a magnetic field can be formed on the steel structure surface.

[0028] In another implementation approach, multiple magnetic field orientation modules are combined to process CFRP sheets of different areas. For example, this invention provides a magnetic field orientation device for CFRP planar parts, which performs magnetic field processing on large-area CFRP planar sheets with planar settings, specifically including: Including the aforementioned multiple magnetic field orientation modules, it also includes: a hinge assembly; When the number of magnetic field orientation modules is greater than 2, any two adjacent magnetic field orientation modules are connected by a hinge assembly, which includes: First mounting block 401, second mounting block 402, rotating shaft 403, sleeve 404, fixing sleeve 405, positioning pin and spring 4063; The first mounting block 401 and the second mounting block 402 have the same structure. The bottom of the first mounting block 401 is provided with a groove that matches the shape of the dovetail boss 101. The first mounting block 401 can be slidably mounted on the dovetail boss 101 through the groove. A rotating shaft 403 is provided on the first mounting block 401. The shaft body is fixedly installed on the reinforcing rib of the first mounting block 401. A plurality of positioning recesses 4031 are evenly distributed around the shaft body of the rotating shaft 403. Two sleeves 404 are provided on the second mounting block 402. The body of the sleeve 404 is installed on the reinforcing rib of the second mounting block 402. The fixing sleeve 405 is installed on the second mounting block 402. The fixing sleeve 405 is installed inside the fixing sleeve 405. The fixing pin is provided with a spring 4063. For a set of hinge components: When the first mounting block 401 is installed on the dovetail boss 101 of a magnetic field orientation module, the second mounting block 402 is installed on the dovetail boss 101 of another magnetic field orientation module. The two ends of the rotating shaft 403 of the first mounting block 401 are respectively installed in the two sleeves 404 of the second mounting block 402. The pin on the second mounting block 402 presses against the positioning recess 4031. The included angle of the first mounting block 401 and the included angle of the second mounting block 402 are 180°.

[0029] In one specific embodiment, the positioning recess 4031 is an arc-shaped groove.

[0030] The ends of the first mounting block 401 and the second mounting block 402 are respectively provided with mounting holes that are adapted to the positioning holes on the protrusion 102.

[0031] The positioning pin includes: a knob 4061, a pin 4062, a spring 4063, and a positioning pin 4064; The knob 4061 and the ejector pin 4062 are integrated, the ejector pin 4062 is threadedly connected to the fixing sleeve 405, and the knob 4061 is located outside the fixing sleeve 405; The fixed sleeve 405 has an inner cavity. The top end of the positioning pin 4064 extends from the end of the fixed sleeve 405 away from the knob 4061. The positioning pin 4064 has an annular platform on its needle body. One end of the spring 4063 abuts against the annular platform, and the other end of the spring 4063 abuts against the inner wall of the inner cavity of the fixed sleeve 405. The spring 4063 is sleeved on the positioning pin 4064. When the positioning pin 4064 locks the positioning recess 4031, the knob 4061 tightens the ejector pin 4062, causing the ejector pin 4062 to press against the positioning pin 4064. The annular platform of the positioning pin 4064 abuts against the outlet end of the fixing sleeve 405, and the positioning pin 4064 presses against the positioning recess 4031.

[0032] Because the area of ​​CFRP requires multiple magnetic field orientation modules to be coupled into a large magnetic field orientation device, sometimes two are needed to form a rectangular magnetic field orientation device, and sometimes, depending on the area requirements, four, nine, or more magnetic field orientation devices coupled into a square magnetic field orientation device are needed. Any two adjacent magnet boxes 100 need to be connected by a hinge assembly. Since the centrally located magnetic field orientation module can be connected to other magnetic field orientation modules in all directions via hinge assemblies, for a set of hinges: The first mounting block 401 in the hinge assembly is mounted on the dovetail boss 101 of a magnetic field orientation module, and the second mounting block 402 in the hinge assembly is mounted on the dovetail boss 101 of another magnetic field orientation module, and then connected by a positioning pin pressing against the positioning groove.

[0033] The structure of the positioning pin and the fixing sleeve 405 is as follows: A threaded hole is provided at the inlet of the fixing sleeve 405; an inner cavity is provided inside the fixing sleeve 405; the inner cavity is connected to the threaded hole, but the diameter of the inner cavity is larger than the diameter of the threaded hole; the knob 4061 and the ejector pin 4062 are integrally formed; the ejector pin 4062 is connected to the threaded hole of the fixing sleeve 405; however, to allow the ejector pin 4062 to excessively penetrate into the inner cavity, a ring-shaped platform for limiting its position is provided at the connection end between the ejector pin 4062 and the knob 4061; the ring-shaped platform of the knob 4061 is used to abut against the inlet of the fixing sleeve 405 and is located outside the fixing sleeve 405; the positioning pin 4064 is divided into two parts by the ring-shaped platform of the positioning pin 4064, one part... One part extends outward through the outlet end of the fixed sleeve 405 and is used to abut against the positioning recess 4031. Another part is fitted with a spring 4063. One end of the spring 4063 abuts against the inner end face of the inlet end of the cavity of the fixed sleeve 405, and the other end of the spring 4063 abuts against the annular platform on the positioning pin 4064. The ejector pin 4062, the spring 4063 and the positioning pin 4064 are coaxial. The spring 4063 compresses the positioning pin 4064 so that it is always in contact with the positioning recess 4031. The ejector pin 4062 is connected to the fixed sleeve 405 by threads. Rotating the knob 4061 causes the ejector pin 4062 to move back and forth in the fixed sleeve 405 to press the positioning pin 4064 to maintain a fixed angle.

[0034] Since the CFRP sheet may be right angled, a magnetic field orientation device for the CFRP bent part needs to be designed for the bent part, including the above-mentioned magnetic field orientation module, as well as the hinge assembly and transition magnetic box 500. The number of magnetic field orientation modules must be at least two; Any two adjacent magnetic field orientation modules are connected by a transition magnetic box 500, wherein the transition magnetic box 500 includes a first mounting surface, a second mounting surface and a transition surface; The first mounting surface is connected to the side of the magnetic field orientation module, the second mounting surface is connected to the side of another magnetic field orientation module, and the transition surface forms a 45° angle with the first mounting surface and the second mounting surface respectively, and the transition surface connects the first mounting surface and the second mounting surface. A set of hinge components is set between any two adjacent magnetic field orientation modules.

[0035] The hinge assembly includes: First mounting block 401, second mounting block 402, rotating shaft 403, sleeve 404, fixing sleeve 405, positioning pin and spring 4063; The first mounting block 401 and the second mounting block 402 have the same structure. The bottom of the first mounting block 401 is provided with a groove that matches the shape of the dovetail boss 101. The first mounting block 401 can be slidably mounted on the dovetail boss 101 through the groove. A rotating shaft 403 is provided on the first mounting block 401. The shaft body is fixedly installed on the reinforcing rib of the first mounting block 401. A plurality of positioning recesses 4031 are evenly distributed around the circumference of the rotating shaft 403. Two sleeves 404 are provided on the second mounting block 402. The body of the sleeve 404 is installed on the reinforcing rib of the second mounting block 402. The fixing sleeve 405 is installed on the second mounting block 402. The fixing sleeve 405 is installed inside the fixing sleeve 405. The fixing pin is provided with a spring 4063. For a set of hinge components: When the first mounting block 401 is installed on the dovetail boss 101 of a magnetic field orientation module, the second mounting block 402 is installed on the dovetail boss 101 of another magnetic field orientation module. The two ends of the rotating shaft 403 of the first mounting block 401 are respectively installed in the two sleeves 404 of the second mounting block 402. The pin on the second mounting block 402 presses against the positioning recess 4031. The included angle of the first mounting block 401 and the included angle of the second mounting block 402 are 90°.

[0036] The hinge assembly consists of two parts, both with grooves on their bottom surfaces and mounting holes at their tails. These mounting holes mate with positioning holes, allowing the corresponding first mounting block 401 and second mounting block 402 to be mounted onto the corresponding dovetail boss 101 via the mounting holes. A locating pin connects the mounting holes and the positioning holes to secure the hinge assembly.

[0037] The specific structure of the positioning pin in this embodiment is the same as that of the positioning pin in the magnetic field orientation device of the CFRP planar part, and the principle is the same. The angle formed after the positioning pin abuts against the positioning groove is 90 degrees.

[0038] In the first implementation, the solenoid coil 201 is bolted inside the magnet box 100, ensuring the electromagnet housing 200 is securely fixed and the solenoid coil 201 is correctly positioned. Multiple solenoid coils 201 can be used, depending on the area of ​​the magnet box 100. The column base adjustment studs are connected to the magnet box 100 via bolt holes at the four corners of the top and bottom surfaces. The bottom of the column base is connected to the column base adjustment studs via threads. By rotating the column base adjustment studs, the height of the magnet box 100 is adjusted to fit the height of the steel structure surface, ensuring the stability of the device installation. The hinge assembly is connected to the two modules via the positioning holes and mounting holes, and positioned at the required angle using positioning pins. After adjusting the angle and installing all components, the entire device is installed on the steel structure surface, ensuring the device is angularly aligned with the surface to ensure the magnetic field effectively acts on the steel structure surface. The power cord of the solenoid coil 201 is connected to the power supply wire to generate a magnetic field, thereby forming the required magnetic field environment on the steel structure surface. The magnetic microneedles in the CFRP are then allowed to orient themselves in the magnetic field. After the magnetic microneedles are oriented in the CFRP, the power is first disconnected to demagnetize the solenoid coil 201, making it easy to remove from the steel structure surface. Then, the column base 600, column adjusting studs, and other components are removed sequentially.

[0039] In the second implementation method, based on the complex steel structure connection surface, different hinge angles should be adopted for steel structures with different connection angles. For the flange and web of the I-beam, a planar combination should be adopted. One or two rows of connections should be used for different areas. For right-angle welded I-beams, 90-degree hinges should be used to connect them and then adsorb them onto the steel structure surface with CFRP.

[0040] For a set of hinge components, the angle-fixed pin, in conjunction with the positioning recess 4031, allows the magnet boxes 100 of the two magnetic field orientation modules to form a certain angle, 180 degrees or 90 degrees, to accommodate different types of CFRP panels. The angle positioning pin consists of a push pin 4062, a spring 4063, and a positioning pin 4064, all three being coaxial. The spring 4063 compresses the positioning pin 4064 to keep it in constant contact with the angle positioning ring. The push pin 4062 is connected to the housing via threads. Rotating the push pin 4062 allows it to move back and forth within the housing, pressing the positioning pin 4064 to maintain a fixed angle. The angle positioning ring is a gear-like circular ring with an arc-shaped recess 4031 at each required fixed angle position, within which the positioning pin 4064 can extend and retract.

[0041] With the aforementioned structure, the device can flexibly adjust the angle according to the actual conditions of the steel structure surface, and can fix the angle through angle positioning pins and angle positioning rings to meet different engineering needs. Meanwhile, the dovetail groove design on the top of the magnet box 100 provides excellent expandability; multiple magnet boxes 100 can be assembled with hinges into arrays of different shapes, further enhancing adaptability to complex steel structure surfaces.

[0042] The following points need to be explained: (1) The accompanying drawings of this utility model embodiment only involve the structure involved in this utility model embodiment. Other structures can refer to the general design.

[0043] (2) For clarity, the thickness of layers or regions is enlarged or reduced in the drawings used to describe embodiments of the present invention, i.e., these drawings are not drawn to scale. It is understood that when an element such as a layer, film, region or substrate is referred to as being “above” or “below” another element, the element may be “directly” located “above” or “below” the other element or there may be intermediate elements.

[0044] (3) Where there is no conflict, the embodiments of this utility model and the features in the embodiments can be combined with each other to obtain new embodiments.

[0045] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. The protection scope of this utility model shall be determined by the protection scope of the claims.

Claims

1. A magnetic field orientation module, characterized in that, The magnetic field orientation module includes: The magnet box is square in shape. Four dovetail-shaped protrusions are provided on the upper surface of the magnet box. The four dovetail-shaped protrusions are arranged in a cross shape. The center line of the four dovetail-shaped protrusions corresponds to the center line of the corresponding side of the magnet box. One short side of the four dovetail-shaped protrusions corresponds to the edge of the magnet box. A square groove is provided on the bottom surface of the magnet box away from the upper surface. A protrusion is provided at one end of each of the four rectangular platforms. The protrusions are provided with positioning holes. An electromagnet housing and a solenoid coil are provided. The solenoid coil is installed inside the electromagnet housing, which is installed in a square groove. Current flows through the solenoid coil via a wire. The magnet box has four corners with adjustable studs and a base. Each adjustable stud is fitted with a base, and the material to be processed is placed at the bottom of the base. The distance between the helical coil at the bottom of the magnet box and the material to be processed is adjusted by adjusting the adjustable studs.

2. The magnetic field orientation module according to claim 1, characterized in that, The dovetail-shaped boss has an isosceles trapezoidal cross-section, and the upper surface of the dovetail-shaped boss is rectangular. The edge of the upper surface of the dovetail-shaped boss coincides with the longest side of the isosceles trapezoidal cross-section of the dovetail-shaped boss.

3. The magnetic field orientation module according to claim 1, characterized in that, Connecting plate assemblies are respectively installed at the four corners of the upper surface of the magnet box; The connecting plate assembly includes a horizontal connecting plate and a vertical connecting plate, which are arranged perpendicularly to each other in space, and are perpendicular to the upper surface of the magnet box.

4. A magnetic field orientation device for a CFRP planar component, characterized in that, The magnetic field orientation module according to any one of claims 1 to 3 further includes: a hinge assembly; When the number of magnetic field orientation modules is greater than 2, any two adjacent magnetic field orientation modules are connected by a hinge assembly, which includes: First mounting block, second mounting block, rotating shaft, sleeve, fixing sleeve, positioning pin; The first mounting block and the second mounting block have the same structure. The bottom of the first mounting block is provided with a groove that matches the shape of the dovetail boss. The first mounting block can be slidably mounted on the dovetail boss through the groove. A rotating shaft is set on the first mounting block, and the shaft body is fixedly installed on the reinforcing rib of the first mounting block. A ring of evenly distributed positioning recesses is set around the circumference of the rotating shaft. Two sleeves are provided on the second mounting block. The sleeve body is installed on the reinforcing rib of the second mounting block, and the fixing sleeve is installed on the second mounting block. The fixing sleeve is installed with a positioning pin. For a set of hinge components: When the first mounting block is installed on the dovetail boss of a magnetic field orientation module, the second mounting block is installed on the dovetail boss of another magnetic field orientation module. The two ends of the rotating shaft of the first mounting block are respectively installed in the two sleeves of the second mounting block. The positioning pin on the second mounting block presses against the positioning recess. The included angle of the first mounting block and the included angle of the second mounting block are 180°.

5. The magnetic field orientation device for CFRP planar components according to claim 4, characterized in that, The positioning recess is provided in the form of an arc-shaped groove.

6. The magnetic field orientation device for CFRP planar components according to claim 4, characterized in that, The ends of the first mounting block and the second mounting block are respectively provided with mounting holes that are adapted to the positioning holes on the protrusion.

7. The magnetic field orientation device for CFRP planar components according to claim 4, characterized in that, The positioning pin includes: a knob, a pin, a spring, and a positioning pin; The knob and ejector pin are integrated, with the ejector pin retaining sleeve threadedly connected, and the knob positioned outside the retaining sleeve. The fixed sleeve has an inner cavity. The top of the positioning pin extends from the end of the fixed sleeve away from the knob. The positioning pin has an annular platform on its body. One end of the spring abuts against the annular platform, and the other end of the spring abuts against the inner wall of the cavity of the fixed sleeve. The spring is sleeved on the positioning pin. When the positioning pin locks the positioning recess, the knob is tightened to make the ejector pin press against the positioning pin. The annular platform of the positioning pin blocks the outlet end of the fixing sleeve, and the positioning pin presses against the positioning recess.

8. A magnetic field orientation device for a CFRP bent component, characterized in that, The magnetic field orientation module according to any one of claims 1 to 3 further includes a hinge assembly and a transition magnetic box; The number of magnetic field orientation modules must be at least two; Any two adjacent magnetic field orientation modules are connected by a transition magnetic box, wherein the transition magnetic box includes a first mounting surface, a second mounting surface and a transition surface; The first mounting surface is connected to the side of the magnetic field orientation module, the second mounting surface is connected to the side of another magnetic field orientation module, and the transition surface forms a 45° angle with the first mounting surface and the second mounting surface respectively, and the transition surface connects the first mounting surface and the second mounting surface. A set of hinge components is set between any two adjacent magnetic field orientation modules.

9. The magnetic field orientation device for CFRP bent parts according to claim 8, characterized in that, The hinge assembly includes: First mounting block, second mounting block, rotating shaft, sleeve, fixing sleeve, locating pin and spring; The first mounting block and the second mounting block have the same structure. The bottom of the first mounting block is provided with a groove that matches the shape of the dovetail boss. The first mounting block can be slidably mounted on the dovetail boss through the groove. A rotating shaft is set on the first mounting block, and the shaft body is fixedly installed on the reinforcing rib of the first mounting block. A ring of evenly distributed positioning recesses is set around the circumference of the rotating shaft. Two sleeves are provided on the second mounting block. The sleeve body is installed on the reinforcing rib of the second mounting block. The fixing sleeve is installed on the second mounting block. The fixing sleeve is installed with a positioning pin and a spring is installed on the positioning pin. For a set of hinge components: When the first mounting block is installed on the dovetail boss of a magnetic field orientation module, the second mounting block is installed on the dovetail boss of another magnetic field orientation module. The two ends of the rotating shaft of the first mounting block are respectively installed in the two sleeves of the second mounting block. The pin on the second mounting block presses against the positioning recess. The included angle of the first mounting block and the included angle of the second mounting block are 90°.

10. The magnetic field orientation device for CFRP bent parts according to claim 9, characterized in that, The positioning pin includes: a knob, a pin, a spring, and a positioning pin; The knob and ejector pin are integrated, with the ejector pin retaining sleeve threadedly connected, and the knob positioned outside the retaining sleeve. The fixed sleeve has an inner cavity. The top of the positioning pin extends from the end of the fixed sleeve away from the knob. The positioning pin has an annular platform on its body. One end of the spring abuts against the annular platform, and the other end of the spring abuts against the inner wall of the cavity of the fixed sleeve. The spring is sleeved on the positioning pin. When the positioning pin locks the positioning recess, the knob is tightened to make the ejector pin press against the positioning pin. The annular platform of the positioning pin blocks the outlet end of the fixing sleeve, and the positioning pin presses against the positioning recess.

Images