Bending device and bending method for building metal fittings

Abstract

The invention relates to the technical field of wire fitting bending machining, in particular to a bending device and method for building metal fittings, the bending device comprises a machine body, and the machine body is provided with a feeding mechanism arranged at the right end of the machine body and used for horizontally conveying the wire fittings from right to left; the preheating mechanism is arranged at the middle end position of the machine body and is used for heating the to-be-bent part of the wire rod accessory to 85 DEG C; and the reversing pressure applying mechanism is arranged at the middle end of the machine body. A feeding moving seat is movably arranged at the right end of the machine body through a guide long hole, an elastic wedge head clamp capable of horizontally stretching out and drawing back is arranged in the feeding moving seat, loosening and tightening operation is carried out according to the conveying requirement of wire rod accessories, a reciprocating rotating pipe is driven to deflect, and a rotatable steering rotating ring is arranged through a reciprocating moving block; therefore, the ultrasonic generator and the ultrasonic receiver can be driven to rotate and adjust around the bending part of the wire accessory, so that the bending part of the wire can be subjected to ultrasonic detection from multiple angles.

Description

Technical Field

[0001] The invention relates to the technical field of wire fitting bending processing, and in particular to a bending device and a bending method for building metal fittings. Background Art

[0002] The development of the times has made construction efficiency higher and higher, mainly due to the innovation and development of building materials and processes. Among them, the widely used metal wire accessories are often pre-processed to better adapt to the needs of construction, among which bending processing is the most common. Under the current conditions, the metal wire accessories are mostly placed on the bending mold on the workbench. By operating the control device, the bending mold moves downward, and pressure is applied to the metal wire accessories, causing them to bend and deform under the action of the mold. During the bending process, the stress distribution inside the metal wire accessories will change. When the stress exceeds the yield limit of the material, the metal will produce plastic deformation, thereby achieving the desired bending shape.

[0003] Existing bending processing technologies, such as a bending device for building metal accessories disclosed in announcement number CN220560303U, believe that some existing building metal accessories have different shapes, and therefore require various different bending devices. It is inconvenient to carry multiple bending devices, so it is specifically proposed that according to the combination of a limit support frame, a first hydraulic cylinder, a telescopic member and a support base, the position of the steel bar can be fixed, and the other end of the steel bar can be fixed by a second hydraulic cylinder and a bending push piece. Then, the bending rod drives the second hydraulic cylinder and the bending push piece to push the steel bar, and the steel bar can be bent by a circular block. According to the setting of the shapes of triangular blocks, diamond blocks and circular blocks, the diversity of bending can be effectively improved. However, wires are different from hard and rigid accessories. It is difficult to effectively fix flexible metal wire accessories using simple limit support frames, making them very easy to slip during transportation. It is impossible to deliver the wire accessories to the bending position and it is difficult to ensure the accuracy of the bending position. More importantly, the structure of untreated metal wires is thin and brittle. If pressure shaping is directly adopted, especially when multi-directional and multi-node bending of metal wires is required, the external forces it is subjected to are very complex. The structure of the metal wire itself is very easy to break when subjected to large extrusion. When this breakage only exists inside the metal wire, it cannot be directly observed by the naked eye. The existing bending equipment fails to perform bending detection on it, so it is difficult to ensure the structural integrity of the metal wire after being violently bent. There will be great safety hazards in construction, which seriously affect the quality of the building. Summary of the invention

[0004] The purpose of the present invention is to solve the problem in the prior art that it is difficult to perform non-destructive bending processing on wire accessories, and to propose a bending device and a bending method for building metal accessories.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A bending device for building metal accessories, comprising a body, on which is provided:

[0007] A feeding mechanism, which is arranged at the right end of the machine body and is used to horizontally convey wire accessories from right to left;

[0008] A preheating mechanism, which is arranged at the middle end of the machine body and is used to heat the part of the wire fitting to be bent to 85°C;

[0009] A reversing pressure mechanism, which is arranged at the middle end of the machine body and is used to resist and squeeze the part of the wire accessory to be bent;

[0010] The detection mechanism is arranged at the left end of the machine body, and is used to detect whether there are cracks at the bending part of the wire accessories.

[0011] Preferably, the body comprises:

[0012] A platform, wherein the platform is arranged horizontally;

[0013] A lateral bracket, wherein the lateral bracket is integrally connected to the right end of the platform, and the right end of the platform is provided with a guide long hole distributed along the lateral bracket, and the feeding mechanism is arranged through the lateral bracket and the guide long hole;

[0014] A hollow pillar, wherein the hollow pillar is integrally connected to the middle end of the platform, and the top end of the hollow pillar is open, and the preheating mechanism is arranged through the hollow pillar;

[0015] An extension slot is provided at the left end of the platform, and the detection mechanism is arranged through the extension slot.

[0016] Preferably, the feeding mechanism comprises:

[0017] A traction turntable, which is rotatably mounted on the lateral bracket and is integrally connected to an eccentrically arranged first traction bolt;

[0018] A reciprocating swing arm, wherein the reciprocating swing arm pin is mounted on the lateral bracket, and a first traction long hole for slidingly fitting a first traction bolt is provided at the middle end of the reciprocating swing arm, and a second traction long hole is provided at the upper end of the reciprocating swing arm;

[0019] A reciprocating frame, wherein the reciprocating frame is slidably mounted on the lateral bracket, and a second traction bolt slidably sleeved in the second traction long hole is fixedly connected to the reciprocating frame;

[0020] A wedge head lifting push rod, wherein the wedge head lifting push rod is slidably sleeved in the reciprocating moving frame;

[0021] A wedge head abutment block, wherein the wedge head abutment block is integrally connected to the lateral bracket, and the wedge head abutment block movably abuts against the wedge head lifting push rod;

[0022] The feeding movable seat is slidably arranged on the platform, and the feeding movable seat is in active conflict with the wedge head lifting push rod.

[0023] Preferably, the feeding movable seat comprises:

[0024] A hollow protrusion, wherein the hollow protrusion is slidably installed in the guide long hole;

[0025] A limiting groove, which is provided at the upper end of the hollow protrusion and is a column groove structure corresponding to the wire fitting;

[0026] A cavity, wherein the cavity is opened at the lower end of the hollow protrusion;

[0027] An automatic telescopic rod, wherein the automatic telescopic rod is fixedly disposed in the cavity;

[0028] A traction lever, wherein the traction lever is rotatably mounted in the cavity, and a traction rod is pin-connected between one end of the traction lever and the output end of the automatic telescopic rod, and a third traction long hole is opened in the other end of the traction lever;

[0029] A wedge head telescopic rod, wherein the wedge head telescopic rod is slidably installed in the cavity, and the lower end of the wedge head telescopic rod is integrally connected with a third traction bolt slidably sleeved in the third traction long hole;

[0030] An elastic wedge head clamp is slidably mounted in the cavity and movably extends into the limiting groove, and the elastic wedge head clamp movably contacts the wedge head telescopic rod.

[0031] Preferably, the preheating mechanism comprises:

[0032] a central pillar, the central pillar being integrally mounted within the hollow pillar;

[0033] A load-bearing bracket, wherein the load-bearing bracket is welded inside the central pillar;

[0034] A heater, wherein the heater is fixedly mounted on the load-bearing bracket;

[0035] The limiting round rods are four in number, and the four limiting round rods are equidistantly distributed on the load-bearing bracket in the circumferential direction and fixedly extend to the outside of the top of the central pillar;

[0036] A receiving notch, wherein the receiving notch is formed in the limiting round rod;

[0037] An automatic lifting plate, the automatic lifting plate being movably mounted on a load-bearing bracket;

[0038] A telescopic push rod, wherein the telescopic push rod is slidably sleeved in the limiting round rod, the upper end of the telescopic push rod movably extending into the storage cutout is integrally connected with a fourth traction bolt, and the lower end of the telescopic push rod movably contacts with the automatic lifting plate;

[0039] An opening and closing support rod, wherein the pin of the opening and closing support rod is installed in the receiving cutout, and a fourth traction long hole for slidingly fitting a fourth traction bolt is opened in the opening and closing support rod;

[0040] A heat-conducting clamping plate, wherein the pin of the heat-conducting clamping plate is connected to the opening and closing support rod;

[0041] A limiting opening, wherein the limiting opening is provided in the limiting round rod and is connected to the receiving incision;

[0042] A position-limiting through-hole slider, wherein the position-limiting through-hole slider is slidably sleeved in the position-limiting opening;

[0043] The limiting plug rod is fixedly connected to the heat-conducting clamping plate, and the limiting plug rod slides through the limiting through-hole slider.

[0044] Preferably, the reversing pressure applying mechanism comprises:

[0045] A guide arc groove, wherein the guide arc groove is provided on the inner wall of the hollow pillar;

[0046] A guide slider, wherein the guide slider is slidably installed in the guide arc groove;

[0047] An automatic lifting frame, wherein the automatic lifting frame is movably mounted on a guide slider;

[0048] A reciprocating coil, the reciprocating coil is fixedly connected to the automatic lifting frame, and the reciprocating coil is movably sleeved on the central pillar;

[0049] A driving gear, wherein the driving gear is disposed outside the hollow support column;

[0050] A driven gear column, wherein the driven gear column is fixedly sleeved on the reciprocating rotary tube and meshedly connected with the driving gear;

[0051] The reversing pressure mechanism also includes:

[0052] An annular cavity, wherein the annular cavity is opened in the reciprocating coil;

[0053] The receiving countersunk holes are two in number, and the two receiving countersunk holes are symmetrically arranged at the top end of the reciprocating coil, and the receiving countersunk holes are connected to the annular cavity;

[0054] A double-ended swing rod, which is rotatably mounted in the annular cavity, and has fifth traction long holes at both ends of the double-ended swing rod;

[0055] A driven lifting rod, the driven lifting rod is slidably installed in the annular cavity and movably extends to the receiving countersunk hole, and a fifth traction bolt slidably mounted on the driven lifting rod is integrally connected to the fifth traction long hole;

[0056] A booster assembly is fixedly mounted on the driven lifting rod and is located at the upper end of the driven lifting rod.

[0057] Preferably, the booster assembly comprises:

[0058] A square boosting block, wherein the square boosting block is fixedly mounted on the driven lifting rod;

[0059] A hexagonal booster block, wherein the hexagonal booster block is fixedly mounted on the square booster block;

[0060] A columnar boosting block is fixedly mounted on the hexagonal boosting block.

[0061] Preferably, the detection mechanism comprises:

[0062] a reciprocating block, the reciprocating block being slidably mounted in the extension slot;

[0063] A steering swivel, the steering swivel being rotatably mounted in the reciprocating block;

[0064] A driving ratchet wheel rotatably mounted in the reciprocating block;

[0065] A driven gear ring, wherein the driven gear ring is fixedly mounted on the steering swivel and meshedly connected with the driving ratchet;

[0066] An ultrasonic transmitter, wherein the ultrasonic transmitter is fixedly mounted on the steering swivel;

[0067] An ultrasonic receiver is fixedly mounted on the steering swivel.

[0068] Preferably, the ultrasonic transmitter and the ultrasonic receiver are symmetrically arranged about the center of the steering ring.

[0069] Regarding the above-mentioned bending method of the bending device for building metal accessories, the bending method comprises the following steps:

[0070] Step S1, placing the wire accessories on the feeding movable seat, controlling the automatic telescopic rod to open, so that the traction lever is deflected, the traction lever supports the wedge head telescopic rod to squeeze the elastic wedge head clamp, clamping and fixing the wire accessories in the limiting groove, controlling the rotation of the traction turntable to deflect the reciprocating swing rod, driving the reciprocating moving frame to move linearly, and when driving the wedge head lifting push rod to move and contact the wedge head stop block, the wedge head lifting push rod moves up to contact the hollow convex block, and the wire accessories are conveyed to the left through the feeding movable seat;

[0071] Step S2, control the automatic lifting plate to move upward, so that the telescopic push rod supports the opening and closing support rod to deflect, and the heat-conducting clamps on the four limiting round rods are moved closer to each other until they touch the part to be bent of the wire accessories through the limit through-hole slider and the limit plug rod. The heater is controlled to turn on, so that the limit round rod and the heat-conducting clamps are quickly heated up until the part to be bent of the wire accessories is heated to 85°C;

[0072] Step S3, controlling the deflection of the double-headed swing arm, using the driven lifting rod to support the booster assembly to move vertically upward to the desired position, controlling the driving gear to rotate, driving the reciprocating rotary tube to deflect through the driven gear column, and driving the booster assembly to apply pressure to the part of the wire accessory to be bent;

[0073] Step S4, using the feeding mechanism to continue pushing the wire accessories until the bending part of the wire accessories moves to the position of the detection mechanism;

[0074] Step S5, controlling the reciprocating block to move along the extension slot, driving the steering swivel to rotate by driving the ratchet and the driven gear ring, during which the ultrasonic transmitter is used to transmit ultrasonic waves to the bending part of the wire accessory, and then the ultrasonic receiver is used to receive the ultrasonic waves passing through the bending part of the wire to determine whether there are cracks in the bending part of the wire accessory.

[0075] Compared with the prior art, the present invention has the following advantages:

[0076] 1. The present invention uses a long guide hole to movably set a feeding movable seat at the right end of the machine body, and a horizontally retractable elastic wedge clamp is set in the feeding movable seat to perform loosening and tightening operations according to the needs of conveying wire accessories. At the same time, a reciprocating swing arm movably pulled by a traction turntable at the right end of the machine body drives the reciprocating movable frame and the wedge lifting push rod to move, thereby pushing the feeding movable seat fixed with the set wire accessories.

[0077] 2. The present invention sets a hollow pillar with a hollow structure at the middle end of the body, sets a central pillar with a hollow structure inside the hollow pillar, uses the central pillar to set a heater and a limiting round rod, and sets an adjustable heat-conducting clamp on the four limiting round rods so that the heat-conducting clamp can be used to evenly conduct heat to the wire accessories passing through the middle end of the body, so that the wire accessories to be bent can be bent under high temperature conditions, avoiding cracks due to the hard and brittle structure.

[0078] 3. The present invention arranges a reciprocating rotor located on a central pillar in a hollow pillar, and arranges two groups of vertically telescopically adjustable booster assemblies in the reciprocating rotor, so that the booster assemblies at corresponding positions can be selected according to the bending needs of the wire accessories. By driving the reciprocating rotor to deflect, the bending part of the wire can be pressurized and shaped.

[0079] 4. The present invention uses a reciprocating block that can move linearly reciprocatingly to be arranged at the left end of the machine body, and uses the reciprocating block to set a rotatable steering swivel, so as to drive the ultrasonic generator and the ultrasonic receiver to rotate and adjust around the bending part of the wire accessories, so as to perform ultrasonic detection of the bending part of the wire from multiple angles. BRIEF DESCRIPTION OF THE DRAWINGS

[0080] Figure 1 This is a schematic structural diagram of a bending device for building metal accessories proposed by the present invention;

[0081] Figure 2 A bottom view of a bending device for building metal accessories proposed by the present invention;

[0082] Figure 3 This is a schematic structural diagram of a feeding mechanism of a bending device for building metal accessories proposed by the present invention;

[0083] Figure 4 This is a schematic diagram of the structure of a feeding movable seat of a bending device for building metal accessories proposed by the present invention;

[0084] Figure 5 A cross-sectional view of a feeding movable seat of a bending device for building metal accessories proposed by the present invention;

[0085] Figure 6 This is an enlarged schematic diagram of the structure of part A of a bending device for building metal accessories proposed by the present invention;

[0086] Figure 7 This is a schematic structural diagram of a preheating mechanism and a reversing pressure mechanism of a bending device for building metal accessories proposed by the present invention;

[0087] Figure 8 A cross-sectional view of a preheating mechanism of a bending device for building metal accessories proposed by the present invention;

[0088] Fig. 9 A cross-sectional view of a preheating mechanism and a reversing pressure mechanism of a bending device for building metal accessories proposed by the present invention;

[0089] Fig.10 This is an enlarged schematic diagram of the structure of part B of a bending device for building metal accessories proposed by the present invention;

[0090] Fig.11 A cross-sectional view of a reversing pressure mechanism of a bending device for building metal accessories proposed by the present invention;

[0091] Fig.12 This is a schematic structural diagram of a driven lifting rod and a booster assembly of a bending device for building metal accessories proposed by the present invention;

[0092] Fig.13 This is a schematic diagram of the structure of a detection mechanism of a bending device for building metal accessories proposed by the present invention;

[0093] Fig.14 This is a schematic diagram of the installation of an ultrasonic transmitter and an ultrasonic receiver for a bending device for building metal accessories proposed by the present invention;

[0094] Fig.15 This is a schematic diagram of the bending forming of wire accessories.

[0095] In the figure:

[0096] 1. Machine body; 11. Platform; 12. Lateral bracket; 13. Hollow pillar; 14. Extension notch;

[0097] 2. Feeding mechanism;

[0098] 21. Traction turntable; 211. First traction bolt;

[0099] 22. reciprocating swing rod; 221. first traction long hole; 222. second traction long hole;

[0100] 23. Reciprocating frame; 231. Second traction bolt;

[0101] 24. Wedge head lifting push rod; 25. Wedge head stop block;

[0102] 26. Feeding movable seat; 261. Hollow convex block; 262. Position limiting groove; 263. Cavity; 264. Automatic telescopic rod;

[0103] 265, traction lever; 2651, third traction slot;

[0104] 266, traction rod;

[0105] 267, wedge head telescopic rod; 2671, third traction bolt;

[0106] 268, elastic wedge clamp;

[0107] 3. Preheating mechanism; 31. Central pillar; 32. Load-bearing bracket; 33. Heater; 34. Limiting round rod; 35. Storage cutout; 36. Automatic lifting plate;

[0108] 37. Telescopic push rod; 371. Fourth traction bolt;

[0109] 38. Opening and closing support rod; 381. Fourth traction long hole;

[0110] 39. heat conducting splint; 310. position limiting opening; 311. position limiting through hole slider; 312. position limiting plug rod;

[0111] 4. Reversing pressure mechanism; 41. Guide arc groove; 42. Guide slide block; 43. Automatic lifting frame; 44. Reciprocating rotary tube; 45. Driving gear; 46. Driven gear column; 47. Ring cavity; 48. Storage countersunk hole;

[0112] 49. Double-ended swing rod; 491. Fifth traction long hole;

[0113] 410, driven lifting rod; 4101, fifth traction bolt;

[0114] 411, booster assembly; 4111, square booster block; 4112, hexagonal booster block; 4113, columnar booster block;

[0115] 5. Detection mechanism; 51. Reciprocating block; 52. Steering swivel; 53. Driving ratchet; 54. Driven gear ring; 55. Ultrasonic transmitter; 56. Ultrasonic receiver. DETAILED DESCRIPTION

[0116] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0117] Reference Figure 1-Figure 15 A bending device for building metal accessories includes a body 1, on which a feeding mechanism 2, a preheating mechanism 3, a reversing pressure mechanism 4, and a detection mechanism 5 are arranged.

[0118] It should be noted that the body 1 includes a platform 11, a lateral support 12, a hollow support 13, and an extension slot 14:

[0119] The platform 11 is arranged horizontally. In order to ensure the stability of the machine body 1, legs with locking wheels can be arranged at the four end corners of the platform 11 to facilitate movement while ensuring stability.

[0120] The lateral bracket 12 is integrally connected to the right end of the platform 11, and the right end of the platform 11 is provided with a guide slot distributed along the lateral bracket 12. The feeding mechanism 2 is arranged through the lateral bracket 12 and the guide slot. Figure 1 With attached Figure 2It is worth noting that the lateral support 12 adopts a right-angle plate structure to facilitate the setting of the feeding mechanism 2.

[0121] The hollow pillar 13 is integrally connected to the middle end of the platform 11 , and the top end of the hollow pillar 13 is open. The preheating mechanism 3 is arranged through the hollow pillar 13 . It is worth noting that a circular opening connected to the hollow pillar 13 is opened in the platform 11 .

[0122] The extended slot 14 is opened at the left end of the platform 11, and the detection mechanism 5 is arranged through the extended slot 14. The slot structure with an opening facing left is arranged to facilitate horizontal conveyance of bent wire accessories.

[0123] The feeding mechanism 2 is arranged at the right end of the machine body 1, and the feeding mechanism 2 is used to horizontally convey the wire accessories from right to left. Figure 3 -Attached Figure 6 The feeding mechanism 2 includes a traction turntable 21, a reciprocating swing rod 22, a reciprocating moving frame 23, a wedge head lifting push rod 24, a wedge head stop block 25, and a feeding moving seat 26:

[0124] The traction turntable 21 is rotatably mounted on the lateral bracket 12, and an eccentrically arranged first traction bolt 211 is integrally connected to the traction turntable 21. A driving motor for driving the traction turntable 21 to rotate is arranged on the lateral bracket 12. At the same time, the rotation progress of the traction turntable 21 is predetermined and regulated by the servo controller, so that the traction turntable 21 rotates back and forth in both directions only when the wire accessories need to be pushed horizontally.

[0125] The pin shaft of the reciprocating rocker arm 22 is installed on the lateral bracket 12, and a first traction long hole 221 is opened at the middle end of the reciprocating rocker arm 22 for slidingly fitting the first traction bolt 211, and a second traction long hole 222 is opened at the upper end of the reciprocating rocker arm 22. The traction action of the traction turntable 21 enables the reciprocating rocker arm 22 to swing left and right with the lateral bracket 12 as the fulcrum.

[0126] The reciprocating frame 23 is slidably mounted on the lateral bracket 12, and a second traction bolt 231 slidably mounted in the second traction long hole 222 is fixedly connected to the reciprocating frame 23. It is worth noting that a long hole structure for slidably mounting the reciprocating frame 23 is horizontally opened in the lateral bracket 12, and the reciprocating rocker arm 22 drives the reciprocating frame 23 to reciprocate along the straight line of the long hole during the swinging process.

[0127] Please refer to the instruction manual for details Figure 3The wedge head lifting push rod 24 is slidably mounted in the reciprocating movable frame 23, and the wedge head stop block 25 is integrally connected to the lateral bracket 12, and the wedge head stop block 25 is movably in contact with the wedge head lifting push rod 24. When the reciprocating movable frame 23 drives the wedge head lifting push rod 24 to move to the right end position, due to the slope structure of the wedge head stop block 25, the wedge head lifting push rod 24 is in a downwardly retracted state under the action of gravity. At this time, the wedge head lifting push rod 24 does not contact the feeding movable seat 26. When the reciprocating movable frame 23 drives the wedge head lifting push rod 24 to move to the left end position, due to the supporting effect of the wedge head stop block 25, the wedge head lifting push rod 24 extends vertically upward. At this time, the wedge head lifting push rod 24 contacts and horizontally pushes the feeding movable seat 26 in the initial position.

[0128] The feeding movable seat 26 is slidably arranged on the platform 11. It should be noted that the left end of the guide long hole is connected to a gap larger than the feeding movable seat 26, so that the feeding movable seat 26 can transport the wire accessories to the designated position and then fall down, which is convenient for subsequent use. The number of the feeding movable seats 26 is at least three, of which two feeding movable seats 26 are located on the platform 11 to support the wire accessories, and the other is spare. When a feeding movable seat 26 on the platform 11 falls through the gap at the left end, a feeding movable seat 26 is added at the right end of the platform 11, and the feeding movable seat 26 is in active conflict with the wedge head lifting push rod 24. The feeding movable seat 26 includes a hollow protrusion 261, a limiting groove 262, a cavity 263, an automatic telescopic rod 264, a traction lever 265, a wedge head telescopic rod 267, and an elastic wedge head clamp 268:

[0129] The hollow protrusion 261 is slidably installed in the guide long hole and can move horizontally along the guide long hole under the pressure of the wedge head lifting push rod 24.

[0130] The limiting groove 262 is formed at the upper end of the hollow protrusion 261 , and the limiting groove 262 is a column groove structure corresponding to the wire fitting, so as to facilitate the preliminary placement of the wire fitting on the hollow protrusion 261 .

[0131] The cavity 263 is opened at the lower end of the hollow protrusion 261, and the automatic telescopic rod 264 is fixedly disposed in the cavity 263.

[0132] The traction lever 265 is rotatably installed in the cavity 263, and a traction rod 266 is pin-connected between one end of the traction lever 265 and the output end of the automatic telescopic rod 264, and a third traction long hole 2651 is opened in the other end of the traction lever 265.

[0133] The wedge head telescopic rod 267 is slidably installed in the cavity 263, and the lower end of the wedge head telescopic rod 267 is integrally connected with a third traction bolt 2671 which is slidably mounted in the third traction long hole 2651.

[0134] The elastic wedge head clamp 268 is slidably mounted in the cavity 263 and movably extends into the limiting groove 262, and the elastic wedge head clamp 268 movably contacts the wedge head telescopic rod 267. For details, please refer to the attached manual. Figure 4 With attached Figure 5 It should be noted that a receiving groove structure located in the limiting groove 262 is symmetrically opened in the hollow protrusion 261 to facilitate the contraction and storage of the elastic wedge head clamp 268. A return spring is arranged on the elastic wedge head clamp 268. Under the tension of the return spring, the elastic wedge head clamp 268 that is not resisted and pressed by the wedge head telescopic rod 267 can reset itself.

[0135] The preheating mechanism 3 is arranged at the middle end of the machine body 1, and the preheating mechanism 3 is used to heat the wire accessories to be bent to 85°C. Figure 7 With attached Figure 8 The preheating mechanism 3 includes a central pillar 31, a load-bearing bracket 32, a heater 33, a limiting round rod 34, a storage cutout 35, an automatic lifting plate 36, a telescopic push rod 37, an opening and closing support rod 38, a heat-conducting splint 39, a limiting beam opening 310, a limiting through-hole slider 311, and a limiting plug rod 312:

[0136] The central support 31 is integrally installed in the hollow support 13, and the two are concentrically arranged.

[0137] The load-bearing bracket 32 ​​is welded inside the central pillar 31 , and the heater 33 is fixedly mounted on the load-bearing bracket 32 ​​. By turning on the heater 33 , rapid heat generation can be achieved, and the high-temperature heat is conducted to the heat-conducting clamping plate 39 through the limiting round rod 34 .

[0138] There are four limiting round rods 34, and the four limiting round rods 34 are evenly distributed on the load-bearing bracket 32 ​​in the circumferential direction and fixedly extend to the top of the central pillar 31. The storage cutout 35 is opened in the limiting round rod 34, so that the position of the heat-conducting splint 39 can be adjusted by utilizing the storage cutout 35, so that the heat-conducting splint 39 can clamp wire accessories of different sizes during the adjustment process, thereby fully transferring high-temperature heat to the bending part of the wire accessories.

[0139] The automatic lifting plate 36 is movably mounted on the load-bearing bracket 32, and the telescopic push rod 37 is slidably sleeved in the limiting round rod 34. The upper end of the telescopic push rod 37 movably extends into the storage cutout 35 and is integrally connected with a fourth traction bolt 371, and the lower end of the telescopic push rod 37 movably contacts the automatic lifting plate 36. When the automatic lifting plate 36 moves upward, the telescopic push rod 37 is supported to move upward to support and fix the opening and closing support rod 38 in the storage cutout 35.

[0140] The pin of the opening and closing support rod 38 is installed in the receiving cutout 35 , and a fourth traction long hole 381 for slidably fitting the fourth traction bolt 371 is defined in the opening and closing support rod 38 .

[0141] The heat-conducting clamping plate 39 is pin-connected to the opening and closing support rod 38.

[0142] The limiting drawstring 310 is opened in the limiting round rod 34, and the limiting drawstring 310 communicates with the receiving notch 35. The limiting through-hole slider 311 is slidably sleeved in the limiting drawstring 310. The limiting insertion rod 312 is fixedly connected to the heat-conducting clamping plate 39, and the limiting insertion rod 312 slidably penetrates through the limiting through-hole slider 311. It should be noted that the heat-conducting clamping plate 39 is driven by the opening and closing support rod 38 to perform arc-shaped lifting and lowering. The limiting insertion rod 312 drives the limiting through-hole slider 311 to vertically lift and lower along the limiting drawstring 310. At the same time, the limiting insertion rod 312 horizontally expands and contracts in the limiting through-hole slider 311 to ensure that the heat-conducting clamping plate 39 always remains in a vertical state.

[0143] The reversing pressure-applying mechanism 4 is arranged at the middle position of the machine body 1, and the reversing pressure-applying mechanism 4 is used to abut against and squeeze the part to be bent of the wire accessory. For details, refer to the attached Fig. 9 - attached Fig.12 , the reversing pressure-applying mechanism 4 includes a guiding arc groove 41, a guiding slider 42, an automatic lifting frame 43, a reciprocating rotating tube 44, a driving gear 45, and a driven gear column 46:

[0144] The guiding arc groove 41 is opened on the inner wall of the hollow support column 13. The guiding slider 42 is slidably installed in the guiding arc groove 41. The automatic lifting frame 43 is movably installed on the guiding slider 42. It should be noted that the guiding arc groove 41 provides a guiding effect for the guiding slider 42 in the horizontal direction, and the guiding slider 42 provides a guiding effect for the automatic lifting frame 43 in the vertical direction, so that the reciprocating rotating tube 44 realizes spiral lifting and adjustment in the hollow support column 13.

[0145] The reciprocating rotating tube 44 is fixedly connected to the automatic lifting frame 43, and the reciprocating rotating tube 44 is movably sleeved on the central support column 31.

[0146] The driving gear 45 is arranged outside the hollow support column 13. The driven gear column 46 is fixedly sleeved on the reciprocating rotating tube 44, and the driven gear column 46 is meshed with the driving gear 45. For details, refer to the attached Figure 7 and attached Fig. 9 , an arc opening corresponding to the driven gear column 46 and the driving gear 45 is opened at the side wall position of the hollow support column 13. A U-shaped bracket for rotatably installing the driving gear 45 is also arranged on the outer wall of the hollow support column 13. The reciprocating rotating tube 44 that moves up and down under the driving action of the driving gear 45 can realize rotational adjustment because of the driven gear column 46, but the reciprocating rotating tube 44 can only perform reciprocating rotation of less than 180° because of the bending effect.

[0147] The reversing pressure-applying mechanism 4 further includes an annular cavity 47, a receiving sink 48, a double-headed swing rod 49, a driven lifting rod 410, and a pressure-increasing assembly 411:

[0148] The annular cavity 47 is defined in the reciprocating coil 44 .

[0149] Please refer to the instruction manual for details Fig.15 Because the bending direction of the wire accessories is not unique, there are two receiving countersunk holes 48. The two receiving countersunk holes 48 are symmetrically opened at the top of the reciprocating coil 44, and the receiving countersunk holes 48 are connected to the annular cavity 47, so that the two booster components 411 are symmetrically arranged.

[0150] The double-headed swing rod 49 is rotatably installed in the annular cavity 47 , and fifth traction elongated holes 491 are provided at both ends of the double-headed swing rod 49 .

[0151] The driven lifting rod 410 is slidably installed in the annular cavity 47 and movably extends to the receiving countersunk hole 48, and the driven lifting rod 410 is integrally connected with a fifth traction bolt 4101 of the sliding sleeve fifth traction long hole 491. In the initial state, the booster component 411 is received in the receiving countersunk hole 48. When it is determined that the wire accessories need to be bent toward the front side, a group of booster components 411 at the rear side position are adjusted to extend out of the receiving countersunk hole 48.

[0152] The boosting assembly 411 is fixedly mounted on the driven lifting rod 410 and is located at the upper end of the driven lifting rod 410 .

[0153] The booster assembly 411 includes a square booster block 4111, a hexagonal booster block 4112, and a columnar booster block 4113:

[0154] The square boost block 4111 is fixedly mounted on the driven lifting rod 410, the hexagonal boost block 4112 is fixedly mounted on the square boost block 4111, and the columnar boost block 4113 is fixedly mounted on the hexagonal boost block 4112. Fig.15 By adjusting the boosting assembly 411, the columnar boosting block 4113 is lifted to a height position corresponding to the horizontal height of the wire accessories, and then by driving the reciprocating coil 44 to rotate, the columnar boosting block 4113 can be used to apply pressure to the wire accessories.

[0155] The detection mechanism 5 is arranged at the left end of the machine body 1, and the detection mechanism 5 is used to detect whether there are cracks in the bending part of the wire accessories. Fig.13 With attached Fig.14 The detection mechanism 5 includes a reciprocating block 51, a steering swivel 52, a driving ratchet 53, a driven gear ring 54, an ultrasonic transmitter 55, and an ultrasonic receiver 56:

[0156] The reciprocating block 51 is slidably installed in the extension slot 14. It should be noted that a driving cylinder is provided on the platform 11 for pulling the reciprocating block 51 to move linearly back and forth, so that the reciprocating block 51 can drive the ultrasonic transmitter 55 and the ultrasonic transmitter 55 to perform detection operations on different parts of the wire accessories.

[0157] The steering swivel 52 is rotatably mounted in the reciprocating block 51 , and an arc groove for rotatably mounting the steering swivel 52 is provided in the reciprocating block 51 .

[0158] The driving ratchet 53 is rotatably mounted in the reciprocating block 51 , and the reciprocating block 51 is provided with a stepping motor for driving the driving ratchet 53 to rotate.

[0159] The driven gear ring 54 is fixedly mounted on the steering swivel 52, and the driven gear ring 54 is meshedly connected to the driving ratchet 53. By driving the driving ratchet 53 to rotate, the driven gear ring 54 can be driven to rotate, so that the ultrasonic transmitter 55 and the ultrasonic transmitter 55 can detect the bending parts of the wire accessories from multiple angles.

[0160] The ultrasonic transmitter 55 is fixedly mounted on the steering swivel 52, and the ultrasonic receiver 56 is fixedly mounted on the steering swivel 52. The ultrasonic transmitter 55 and the ultrasonic receiver 56 are symmetrically arranged about the center of the steering swivel 52, and the ultrasonic imaging is used twice before and after to analyze whether there is a crack at the bending part of the wire, so as to improve the efficiency and quality inspection level of the wire bending process.

[0161] It should be noted that the specific models and specifications of the automatic telescopic rod 264, the automatic lifting plate 36, the automatic lifting frame 43, the ultrasonic transmitter 55 and the ultrasonic receiver 56 need to be selected and determined according to the actual specifications of the device, and the specific selection calculation method adopts the existing technology in this field, so it is not repeated here.

[0162] The present invention can be explained by the following operation mode:

[0163] First, place the wire accessories on the feeding movable seat 26, control the automatic telescopic rod 264 to open, so that the traction lever 265 is deflected, and the traction lever 265 supports the wedge head telescopic rod 267 to squeeze the elastic wedge head clamp 268. The outer end of the elastic wedge head clamp 268 is an arc plate structure, which can be adapted to the wire accessories to ensure the clamping stability, clamp and fix the wire accessories in the limiting groove 262, control the traction turntable 21 to rotate, so that the reciprocating swing rod 22 is deflected, and the reciprocating movable frame 23 moves in a straight line. When the wedge head lifting push rod 24 is driven to move and contact the wedge head block 25, the wedge head lifting push rod 24 moves up and contacts the hollow protrusion 261, and the wire accessories are transported to the left through the feeding movable seat 26, so that the part of the wire accessories to be bent passes through four limiting round rods 34.

[0164] Secondly, the automatic lifting plate 36 is controlled to move upward, so that the telescopic push rod 37 supports the opening and closing support rod 38 to deflect, and the heat-conducting clamps 39 on the four limiting round rods 34 are moved closer to each other until they touch the part to be bent of the wire accessory through the movable limiting of the limiting through-hole slider 311 and the limiting plug rod 312. The heater 33 is controlled to turn on, so that the limiting round rods 34 and the heat-conducting clamps 39 are quickly heated up until the part to be bent of the wire accessory is heated to 85°C. The heating softens the structure of the part to be bent of the wire accessory, making it easier to shape and deform during the stress process, thereby avoiding hard extrusion inside the structure and causing breakage due to excessive stress.

[0165] Next, the double-headed rocker arm 49 is controlled to deflect, and the driven lifting rod 410 is used to support the boost assembly 411 to move vertically upward to the desired position. The driving gear 45 is controlled to rotate, and the reciprocating rotary tube 44 is driven to deflect through the driven gear column 46, thereby driving the boost assembly 411 to apply pressure to the part of the wire accessory to be bent. The height position of the boost assembly 411 is adjusted according to the bending shape requirements, so that one of the square boost block 4111, the hexagonal boost block 4112, and the columnar boost block 4113 can horizontally correspond to the wire bending part.

[0166] Then, the feeding mechanism 2 is used to continue pushing the wire accessories until the bending part of the wire accessories moves to the position of the detection mechanism 5.

[0167] Finally, the reciprocating block 51 is controlled to move along the extension slot 14, and the steering swivel 52 is driven to rotate by driving the ratchet 53 and the driven gear ring 54. In this process, the ultrasonic transmitter 55 is used to emit ultrasonic waves to the bending part of the wire accessory, and then the ultrasonic receiver 56 is used to receive the ultrasonic waves passing through the bending part of the wire to determine whether there are cracks in the bending part of the wire accessory. This helps to perform real-time quality inspection on the bent wire accessories, improve efficiency, and effectively control the bending processing level.

[0168] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A bending device for building metal fittings, comprising a body (1), characterized in that: The machine body (1) is provided with: A feeding mechanism (2), the feeding mechanism (2) being arranged at the right end of the machine body (1), and the feeding mechanism (2) being used for horizontally conveying wire accessories from right to left; A preheating mechanism (3), wherein the preheating mechanism (3) is arranged at the middle end of the machine body (1), and the preheating mechanism (3) is used to heat the portion of the wire accessory to be bent to 85° C.; A reversing pressure mechanism (4), the reversing pressure mechanism (4) being arranged at the middle end of the machine body (1), and being used to contact and press the portion of the wire accessory to be bent; A detection mechanism (5), wherein the detection mechanism (5) is arranged at the left end of the machine body (1), and the detection mechanism (5) is used to detect whether there are cracks at the bending part of the wire material accessory.

2. A bending device for building metal accessories according to claim 1, characterized in that: The body (1) comprises: A platform (11), wherein the platform (11) is arranged horizontally; A lateral bracket (12), the lateral bracket (12) is integrally connected to the right end of the platform (11), and the right end of the platform (11) is provided with a guide long hole distributed along the lateral bracket (12), and the feeding mechanism (2) is arranged through the lateral bracket (12) and the guide long hole; A hollow pillar (13), wherein the hollow pillar (13) is integrally connected to the middle end of the platform (11), and the top end of the hollow pillar (13) is open, and the preheating mechanism (3) is arranged through the hollow pillar (13); An extension slot (14) is provided at the left end of the platform (11), and the detection mechanism (5) is arranged through the extension slot (14).

3. A bending device for building metal accessories according to claim 2, characterized in that: The feeding mechanism (2) comprises: A traction turntable (21), the traction turntable (21) is rotatably mounted on the lateral bracket (12), and an eccentrically arranged first traction bolt (211) is integrally connected to the traction turntable (21); A reciprocating swing rod (22), wherein the pin of the reciprocating swing rod (22) is mounted on the lateral bracket (12), and a first traction long hole (221) for slidingly fitting a first traction bolt (211) is provided at the middle end of the reciprocating swing rod (22), and a second traction long hole (222) is provided at the upper end of the reciprocating swing rod (22); A reciprocating frame (23), wherein the reciprocating frame (23) is slidably mounted on the lateral support (12), and a second traction bolt (231) slidably sleeved in the second traction long hole (222) is fixedly connected to the reciprocating frame (23); A wedge head lifting push rod (24), wherein the wedge head lifting push rod (24) is slidably mounted in the reciprocating moving frame (23); A wedge head abutment block (25), wherein the wedge head abutment block (25) is integrally connected to the lateral bracket (12), and the wedge head abutment block (25) movably abuts against the wedge head lifting push rod (24); The feeding movable seat (26) is slidably arranged on the platform (11), and the feeding movable seat (26) is movably in conflict with the wedge head lifting push rod (24).

4. A bending device for building metal accessories according to claim 3, characterized in that: The feeding movable seat (26) comprises: A hollow protrusion (261), wherein the hollow protrusion (261) is slidably mounted in the guide slot; A limiting groove (262), wherein the limiting groove (262) is provided at the upper end of the hollow protrusion (261), and the limiting groove (262) is a column groove structure corresponding to the wire accessory; A cavity (263), wherein the cavity (263) is opened at the lower end of the hollow protrusion (261); An automatic telescopic rod (264), wherein the automatic telescopic rod (264) is fixedly disposed in the cavity (263); A traction lever (265), wherein the traction lever (265) is rotatably mounted in the cavity (263), and a traction rod (266) is pin-connected between one end of the traction lever (265) and the output end of the automatic telescopic rod (264), and a third traction long hole (2651) is provided in the other end of the traction lever (265); A wedge head telescopic rod (267), wherein the wedge head telescopic rod (267) is slidably installed in the cavity (263), and the lower end of the wedge head telescopic rod (267) is integrally connected with a third traction bolt (2671) slidably sleeved in the third traction long hole (2651); An elastic wedge head clamp (268), wherein the elastic wedge head clamp (268) is slidably mounted in the cavity (263) and movably extends into the limiting groove (262), and the elastic wedge head clamp (268) movably contacts the wedge head telescopic rod (267).

5. A bending device for building metal accessories according to claim 4, characterized in that: The preheating mechanism (3) comprises: A central pillar (31), wherein the central pillar (31) is integrally mounted in the hollow pillar (13); A load-bearing bracket (32), wherein the load-bearing bracket (32) is welded inside the central pillar (31); A heater (33), wherein the heater (33) is fixedly mounted on the load-bearing bracket (32); Limiting round rods (34), the number of the limiting round rods (34) is four, and the four limiting round rods (34) are equidistantly distributed on the load-bearing bracket (32) in the circumferential direction and fixedly extend to the outside of the top end of the central pillar (31); A receiving notch (35), wherein the receiving notch (35) is formed in the limiting round rod (34); An automatic lifting plate (36), wherein the automatic lifting plate (36) is movably mounted on the load-bearing bracket (32); A telescopic push rod (37), wherein the telescopic push rod (37) is slidably mounted in the limiting round rod (34), wherein the upper end of the telescopic push rod (37) movably extends into the storage cutout (35) and is integrally connected with a fourth traction bolt (371), and the lower end of the telescopic push rod (37) movably contacts the automatic lifting plate (36); An opening and closing support rod (38), wherein the pin of the opening and closing support rod (38) is installed in the receiving cutout (35), and a fourth traction long hole (381) for slidingly fitting a fourth traction bolt (371) is provided in the opening and closing support rod (38); A heat-conducting clamping plate (39), wherein the heat-conducting clamping plate (39) is pin-connected to the opening and closing support rod (38); A limiting opening (310), wherein the limiting opening (310) is opened in the limiting round rod (34), and the limiting opening (310) is connected to the receiving incision (35); A position-limiting through-hole slider (311), wherein the position-limiting through-hole slider (311) is slidably mounted in the position-limiting constriction opening (310); A limiting plug rod (312), wherein the limiting plug rod (312) is fixedly connected to the heat-conducting clamping plate (39), and the limiting plug rod (312) slides through the limiting through-hole slider (311).

6. A bending device for building metal accessories according to claim 5, characterized in that: The reversing pressure applying mechanism (4) comprises: A guide arc groove (41), wherein the guide arc groove (41) is formed on the inner wall of the hollow support (13); A guide slider (42), wherein the guide slider (42) is slidably mounted in the guide arc groove (41); An automatic lifting frame (43), wherein the automatic lifting frame (43) is movably mounted on the guide slide block (42); A reciprocating rotary tube (44), wherein the reciprocating rotary tube (44) is fixedly connected to the automatic lifting frame (43), and the reciprocating rotary tube (44) is movably sleeved on the central pillar (31); A driving gear (45), wherein the driving gear (45) is disposed outside the hollow support (13); A driven gear column (46), wherein the driven gear column (46) is fixedly sleeved on the reciprocating rotary tube (44), and the driven gear column (46) is meshedly connected with the driving gear (45); The reversing pressure applying mechanism (4) further comprises: An annular cavity (47), wherein the annular cavity (47) is opened in the reciprocating coil (44); A receiving countersunk hole (48), wherein the number of the receiving countersunk holes (48) is two, and the two receiving countersunk holes (48) are symmetrically opened at the top end of the reciprocating coil (44), and the receiving countersunk holes (48) are connected to the annular cavity (47); A double-headed swing rod (49), the double-headed swing rod (49) is rotatably mounted in the annular cavity (47), and fifth traction elongated holes (491) are provided at both ends of the double-headed swing rod (49); A driven lifting rod (410), the driven lifting rod (410) is slidably mounted in the annular cavity (47) and movably extends into the receiving counterbore (48), and a fifth traction bolt (4101) slidably mounted on the driven lifting rod (410) is integrally connected to the fifth traction long hole (491); A booster assembly (411) is fixedly mounted on the driven lifting rod (410) and is located at the upper end of the driven lifting rod (410).

7. A bending device for building metal accessories according to claim 6, characterized in that: The booster assembly (411) comprises: A square boosting block (4111), wherein the square boosting block (4111) is fixedly mounted on the driven lifting rod (410); A hexagonal prism boosting block (4112), wherein the hexagonal prism boosting block (4112) is fixedly mounted on the square boosting block (4111); A columnar boosting block (4113), wherein the columnar boosting block (4113) is fixedly mounted on the hexagonal boosting block (4112).

8. A bending device for building metal accessories according to claim 7, characterized in that: The detection mechanism (5) comprises: A reciprocating block (51), wherein the reciprocating block (51) is slidably mounted in the extension slot (14); A steering swivel (52), wherein the steering swivel (52) is rotatably mounted in the reciprocating block (51); A driving ratchet (53), wherein the driving ratchet (53) is rotatably mounted in the reciprocating block (51); A driven gear ring (54), wherein the driven gear ring (54) is fixedly mounted on the steering swivel (52), and the driven gear ring (54) is meshedly connected to the driving ratchet (53); An ultrasonic transmitter (55), wherein the ultrasonic transmitter (55) is fixedly mounted on the steering swivel (52); An ultrasonic receiver (56), wherein the ultrasonic receiver (56) is fixedly mounted on the steering swivel (52).

9. A bending device for building metal accessories according to claim 8, characterized in that: The ultrasonic transmitter (55) and the ultrasonic receiver (56) are symmetrically arranged about the center of the steering swivel (52).

10. A bending method for a bending device for building metal accessories according to claim 9, characterized in that: The bending method comprises the following steps: Step S1, placing the wire accessories on the feeding movable seat (26), controlling the automatic telescopic rod (264) to open, so that the traction lever (265) is deflected, the traction lever (265) supports the wedge head telescopic rod (267) to squeeze the elastic wedge head clamp (268), clamps and fixes the wire accessories in the limiting groove (262), controls the traction turntable (21) to rotate, so that the reciprocating swing rod (22) is deflected, drives the reciprocating movable frame (23) to move linearly, and drives the wedge head lifting push rod (24) to move and contact the wedge head stop block (25), so that the wedge head lifting push rod (24) moves up to contact the hollow protrusion (261), and the wire accessories are conveyed to the left through the feeding movable seat (26); Step S2, controlling the automatic lifting plate (36) to move upward, so that the telescopic push rod (37) supports the opening and closing support rod (38) to deflect, and the limiting through-hole slider (311) and the limiting plug rod (312) are movable and limited, so that the heat-conducting clamping plates (39) on the four limiting round rods (34) are moved closer to each other until they contact the part to be bent of the wire material accessory, and controlling the heater (33) to turn on, so that the limiting round rods (34) and the heat-conducting clamping plates (39) are quickly heated until the part to be bent of the wire material accessory is heated to 85° C.; Step S3, controlling the double-headed swing arm (49) to deflect, using the driven lifting rod (410) to support the booster assembly (411) to move vertically upward to a desired position, controlling the driving gear (45) to rotate, driving the reciprocating rotary tube (44) to deflect through the driven gear column (46), and driving the booster assembly (411) to apply pressure to the portion of the wire accessory to be bent; Step S4, using the feeding mechanism (2) to continue pushing the wire accessories until the bending part of the wire accessories moves to the position of the detection mechanism (5); Step S5, controlling the reciprocating block (51) to move along the extension slot (14), driving the ratchet wheel (53) and the driven gear ring (54) to drive the steering swivel (52) to rotate, during which the ultrasonic transmitter (55) is used to transmit ultrasonic waves to the bending part of the wire material accessory, and then the ultrasonic receiver (56) is used to receive the ultrasonic waves passing through the bending part of the wire material accessory to determine whether there are cracks in the bending part of the wire material accessory.

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