A bending device and bending method for building metal fittings

Abstract

The present invention relates to the technical field of wire accessory bending processing, and particularly to a bending device and a bending method for building metal accessories, including a machine body, on which are provided: a feeding mechanism is arranged at the right end of the machine body, and the feeding mechanism is used for horizontally conveying wire accessories from right to left; a preheating mechanism is arranged at the middle position of the machine body, and the preheating mechanism is used for heating the part to be bent of the wire accessories to 85 °C; a commutation and pressing mechanism is arranged at the middle position of the machine body. In the present invention, a feeding moving seat is movably arranged at the right end of the machine body by using a guiding long hole, and an elastic wedge head clamp capable of horizontal expansion and contraction is arranged in the feeding moving seat, and tightening and loosening operations are carried out according to the conveying needs of wire accessories. By driving the reciprocating rotating tube to deflect, a rotatable steering rotating ring is arranged by using a reciprocating moving block, 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 on the bending part of the wire from multiple angles.

Description

Technical Field

[0001] The present invention relates to the technical field of wire accessory bending processing, and particularly to a bending device and a bending method for building metal accessories. Background Art

[0002] With the development of the times, the building efficiency is getting higher and higher, mainly due to the innovation and development of building materials and processes. Among them, in order to better meet the needs of building construction, the widely used metal wire accessories need to be pretreated, and bending processing is the most common. Under the existing conditions, the metal wire accessories are mostly placed on the bending die of the workbench, and by operating the control device, the bending die moves downward to apply pressure to the metal wire accessories, so that they are bent and deformed under the action of the die. 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 undergo plastic deformation, thus achieving the required bending shape.

[0003] Existing bending processing technologies, such as a bending device for building metal accessories disclosed in the patent with publication number CN220560303U, believe that due to the different shapes of some existing building metal accessories, various different bending devices are required, and it is inconvenient to carry multiple bending devices. Therefore, it is specifically proposed that according to the combined setting of the limit support frame, the first hydraulic cylinder, the telescopic member and the support base, the position of the steel bar can be fixed, and the second hydraulic cylinder and the bending pusher are used to fix the other end of the steel bar. Subsequently, the second hydraulic cylinder and the bending pusher are driven by the bending rod to push the steel bar, and the steel bar can be bent by the circular stopper. According to the settings of the triangular stopper, the diamond-shaped stopper and the circular stopper, the diversity of bending can be effectively improved. However, different from rigid accessories, it is difficult to effectively fix flexible metal wire accessories with a simple limit support frame, making them extremely easy to slip during the conveying process, unable to send the wire accessories to the bending position and difficult to ensure the accuracy of the bending part. More importantly, the structure of the untreated metal wire is thin and brittle. If the pressure shaping method is directly adopted, especially when multi-directional and multi-node bending of the metal wire is required, the external force acting on it is very complex, and the structure of the metal wire itself is extremely easy to break under the action of large extrusion. And when this kind of 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 severely bent, and there will be great potential safety hazards in building construction, seriously affecting the building quality. Summary of the Invention

[0004] The purpose of the present invention is to solve the problem that it is difficult to perform non-destructive bending processing on wire accessories in the prior art, 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] A detection mechanism, which 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] 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, wherein the extension slot is provided at the left end of the platform, and the detection mechanism is arranged through the extension slot;

[0016] The preheating mechanism comprises:

[0017] a central pillar, the central pillar being integrally mounted within the hollow pillar;

[0018] A load-bearing bracket, wherein the load-bearing bracket is welded inside the central pillar;

[0019] A heater, wherein the heater is fixedly mounted on the load-bearing bracket;

[0020] 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;

[0021] A receiving notch, wherein the receiving notch is formed in the limiting round rod;

[0022] An automatic lifting plate, which is movably installed on a load-bearing bracket;

[0023] A telescopic push rod, which is slidably sleeved in a limiting round rod. The telescopic push rod extends movably into the upper end of a receiving notch and is integrally connected with a fourth traction bolt at the upper end, and the lower end of the telescopic push rod is movably in contact with the automatic lifting plate;

[0024] A folding support rod, which is installed on the receiving notch by a pin shaft, and a fourth traction long hole for slidably sleeving the fourth traction bolt is formed in the folding support rod;

[0025] A heat-conducting clamping plate, which is connected to the folding support rod by a pin shaft;

[0026] A limiting mouth, which is formed in the limiting round rod and communicates with the receiving notch;

[0027] A limiting through-hole slider, which is slidably sleeved in the limiting mouth;

[0028] A limiting insertion rod, which is fixedly connected to the heat-conducting clamping plate and slidably penetrates through the limiting through-hole slider.

[0029] Preferably, the feeding mechanism includes:

[0030] A traction turntable, which is rotatably installed on a lateral bracket, and an eccentrically arranged first traction bolt is integrally connected to the traction turntable;

[0031] A reciprocating swing rod, which is installed on the lateral bracket by a pin shaft, and a first traction long hole for slidably sleeving the first traction bolt is formed in the middle of the reciprocating swing rod, and a second traction long hole is formed in the upper end of the reciprocating swing rod;

[0032] A reciprocating moving frame, which is slidably installed on the lateral bracket, and a second traction bolt slidably sleeved in the second traction long hole is fixedly connected to the reciprocating moving frame;

[0033] A wedge head lifting push rod, which is slidably sleeved in the reciprocating moving frame;

[0034] A wedge head abutting block, which is integrally connected to the lateral bracket and is movably in contact with the wedge head lifting push rod;

[0035] A feeding moving seat, which is slidably arranged on the platform and is movably in contact with the wedge head lifting push rod.

[0036] Preferably, the feeding moving seat includes:

[0037] A hollow convex block, which is slidably installed in a guiding long hole;

[0038] A limiting groove is provided at the upper end of the hollow convex block, and the limiting groove is a column groove structure corresponding to the wire fitting;

[0039] A U-shaped cavity is provided at the lower end of the hollow convex block;

[0040] An automatic telescopic rod is fixedly arranged in the U-shaped cavity;

[0041] A traction lever is rotatably installed in the U-shaped cavity, and a traction pull rod is pin-connected between one end of the traction lever and the output end of the automatic telescopic rod. A third traction long hole is provided at the other end of the traction lever;

[0042] A wedge head telescopic rod is slidably installed in the U-shaped cavity, and a third traction bolt sleeved on the third traction long hole is integrally connected to the lower end of the wedge head telescopic rod;

[0043] An elastic wedge head clamp is slidably sleeved in the U-shaped cavity and extends into the limiting groove movably, and the elastic wedge head clamp is in movable contact with the wedge head telescopic rod.

[0044] Preferably, the commutation pressure applying mechanism includes:

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

[0046] A guiding slider is slidably installed in the guiding arc groove;

[0047] An automatic lifting frame is movably installed on the guiding slider;

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

[0049] A driving gear is arranged outside the hollow pillar;

[0050] A driven gear column is fixedly sleeved on the reciprocating rotating pipe, and the driven gear column is meshed and connected with the driving gear;

[0051] The commutation pressure applying mechanism further includes:

[0052] An annular cavity is provided in the reciprocating rotating pipe;

[0053] Two receiving sinkholes are provided. The two receiving sinkholes are symmetrically provided at the top end of the reciprocating rotating pipe, and the receiving sinkholes are communicated with the annular cavity;

[0054] A double-headed swing rod is rotatably installed in the annular cavity, and fifth traction long holes are provided at both ends of the double-headed swing rod;

[0055] The driven lifting rod is slidably installed in the annular cavity and extends into the receiving counterbore, and a fifth traction bolt that slidably sleeved in the fifth traction long hole is integrally connected to the driven lifting rod;

[0056] The pressurizing assembly is fixedly installed at the upper end position of the driven lifting rod.

[0057] Preferably, the pressurizing assembly includes:

[0058] The square pressurizing block is fixedly installed on the driven lifting rod;

[0059] The hexagonal prism pressurizing block is fixedly installed on the square pressurizing block;

[0060] The columnar pressurizing block is fixedly installed on the hexagonal prism pressurizing block.

[0061] Preferably, the detection mechanism includes:

[0062] The reciprocating moving block is slidably installed in the extending slot;

[0063] The steering swivel is rotatably installed in the reciprocating moving block;

[0064] The driving ratchet is rotatably installed in the reciprocating moving block;

[0065] The driven gear ring is fixedly installed on the steering swivel, and the driven gear ring is meshed with the driving ratchet;

[0066] The ultrasonic transmitter is fixedly installed on the steering swivel;

[0067] The ultrasonic receiver is fixedly installed on the steering swivel.

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

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

[0070] Step S1, place the wire fitting on the feeding moving seat, control the automatic telescopic rod to open, so that the traction lever deflects, the traction lever supports the wedge head telescopic rod to squeeze the elastic wedge head clamp, and clamp and fix the wire fitting in the limit groove, control the traction turntable to rotate, so that the reciprocating swing rod deflects, drive the reciprocating moving frame to move linearly, when driving the wedge head lifting push rod to move and contact the wedge head abutting block, so that the wedge head lifting push rod moves upward to contact the hollow convex block, and convey the wire fitting to the left through the feeding moving seat;

[0071] In step S2, control the automatic lifting plate to move upward, so that the telescopic push rod supports the deflection of the opening and closing support rod. Through the movable limit between the limit through-hole slider and the limit insertion rod, the heat-conducting clamping plates on the four limit round rods approach each other until they contact the part of the wire accessory to be bent. Control the heater to turn on, so that the limit round rods and the heat-conducting clamping plates quickly heat up until the part of the wire accessory to be bent is heated to 85 °C.

[0072] In step S3, control the deflection of the double-headed swing rod, use the driven lifting rod to support the pressurization assembly to move vertically upward to the required position, control the driving gear to rotate, drive the reciprocating rotating tube to deflect through the driven gear column, and drive the pressurization assembly to apply pressure to the part of the wire accessory to be bent.

[0073] In step S4, use the feeding mechanism to continue pushing the wire accessory until the bent part of the wire accessory moves to the position of the detection mechanism.

[0074] In step S5, control the reciprocating moving block to move along the extending notch, drive the steering rotating ring to rotate through the driving ratchet and the driven gear ring. During this process, use the ultrasonic transmitter to emit ultrasonic waves to the bent part of the wire accessory, and then use the ultrasonic receiver to receive the ultrasonic waves passing through the bent part of the wire to judge whether there are cracks in the bent part of the wire accessory.

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

[0076] 1. In the present invention, a feeding moving seat is movably arranged at the right end of the machine body by using a guiding long hole, and an elastically expandable wedge head clamp that can be horizontally telescoped is arranged in the feeding moving seat. Tightening and loosening operations are performed according to the conveying needs of the wire accessory. At the same time, a reciprocating swing rod driven by a traction turntable is arranged at the right end position of the machine body, and the reciprocating swing rod drives the reciprocating moving frame and the wedge head lifting push rod to move, so as to push the feeding moving seat fixedly sleeved with the wire accessory.

[0077] 2. In the present invention, a hollow support column with a hollow structure is arranged at the middle position of the machine body, and a central support column with a hollow structure is arranged inside the hollow support column. The heater and the limit round rods are arranged by using the central support column. By arranging heat-conducting clamping plates that can be adjusted for opening and closing on the four limit round rods, it is convenient to uniformly conduct heat to the wire accessory passing through the middle position of the machine body, so that the part of the wire accessory to be bent is bent under high temperature conditions, avoiding cracks due to hard, brittle and thin structure.

[0078] 3. In the present invention, a reciprocating rotating tube located on the central support column is arranged inside the hollow support column, and two groups of pressurization assemblies that can be vertically telescoped and adjusted are arranged inside the reciprocating rotating tube, so as to select the corresponding pressurization assembly according to the bending needs of the wire accessory. By driving the reciprocating rotating tube to deflect, the bent part of the wire can be pressed and shaped.

[0079] 4. The present invention utilizes a reciprocating block that can linearly reciprocate at the left end of the machine body, and a steering swivel that can rotate is arranged by using the reciprocating block, so as to drive the ultrasonic generator and the ultrasonic receiver to rotate and adjust around the bending part of the wire accessory, so as to perform ultrasonic detection on the wire bending part from multiple angles. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

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

[0084] Figure 5 FIG. is a sectional view of a feeding moving seat of a bending device for building metal accessories proposed by the present invention;

[0085] Figure 6 FIG. 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 FIG. is a schematic structural diagram of a preheating mechanism and a commutation pressure application mechanism of a bending device for building metal accessories proposed by the present invention;

[0087] Figure 8 FIG. is a sectional view of a preheating mechanism of a bending device for building metal accessories proposed by the present invention;

[0088] Figure 9 FIG. is a sectional view of a preheating mechanism and a commutation pressure application mechanism of a bending device for building metal accessories proposed by the present invention;

[0089] Figure 10 FIG. 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] Figure 11 FIG. is a sectional view of a commutation pressure application mechanism of a bending device for building metal accessories proposed by the present invention;

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

[0092] Figure 13 Schematic structural diagram of a detection mechanism for a bending device for building metal fittings proposed by the present invention;

[0093] Figure 14 Installation schematic diagram of an ultrasonic transmitter and an ultrasonic receiver for a bending device for building metal fittings proposed by the present invention;

[0094] Figure 15 Schematic diagram of wire fitting bending and forming;

[0095] In the figure:

[0096] 1, machine body; 11, platform; 12, lateral support; 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 moving frame; 231, second traction bolt;

[0101] 24, wedge head lifting push rod; 25, wedge head abutting block;

[0102] 26, feeding moving seat; 261, hollow convex block; 262, limiting groove; 263, C-shaped cavity; 264, automatic telescopic rod;

[0103] 265, traction lever; 2651, third traction long hole;

[0104] 266, traction pull rod;

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

[0106] 268, elastic wedge head clamp;

[0107] 3, preheating mechanism; 31, central pillar; 32, load-bearing support; 33, heater; 34, limiting round rod; 35, storage notch; 36, automatic lifting disk;

[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 clamping plate; 310, limiting binding mouth; 311, limiting through-hole slider; 312, limiting insertion rod;

[0111] 4. Reversing pressure applying mechanism; 41. Guide arc groove; 42. Guide slider; 43. Automatic lifting frame; 44. Reciprocating pipe; 45. Driving gear; 46. Driven gear column; 47. Annular cavity; 48. Receiving counterbore;

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

[0113] 410. Driven lifting rod; 4101. Fifth traction bolt;

[0114] 411. Pressure boosting assembly; 4111. Square pressure boosting block; 4112. Hexagonal prism pressure boosting block; 4113. Cylindrical pressure boosting block;

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

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

[0117] Referring to Figures 1 - 15 , a bending device for building metal fittings includes a machine body 1, and a feeding mechanism 2, a preheating mechanism 3, a reversing pressure applying mechanism 4, and a detection mechanism 5 are arranged on the machine body 1.

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

[0119] The platform 11 is horizontally arranged. To ensure the stability of the machine body 1, legs with locking wheels can be installed at the four corner positions of the platform 11, which is convenient for movement while ensuring stability.

[0120] The lateral support 12 is integrally connected to the right end position of the platform 11, and a guiding long hole distributed along the lateral support 12 is opened at the right end position of the platform 11. The feeding mechanism 2 is arranged through the lateral support 12 and the guiding long hole. Specifically, refer to the attached Figure 1 to the attached Figure 2 . It is worth noting that the lateral support 12 adopts a right-angle plate structure to facilitate the arrangement of the feeding mechanism 2.

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

[0122] The extension notch 14 is opened at the left end of the platform 11, and the detection mechanism 5 is arranged through the extension notch 14. By setting the notch structure with an opening to the left, it is convenient to horizontally transport the 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 transport the wire accessories from right to left. For details, refer to the attached 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 abutting block 25, and a feeding moving seat 26:

[0124] The traction turntable 21 is rotatably installed on the lateral support 12, and a first traction bolt 211 with an eccentric setting is integrally connected to the traction turntable 21. A driving motor for driving the traction turntable 21 to rotate is arranged on the lateral support 12. At the same time, the rotation progress of the traction turntable 21 is pre-regulated through a servo controller, so that the traction turntable 21 only rotates in a reciprocating manner in both directions when it is necessary to horizontally push the wire accessories.

[0125] The reciprocating swing rod 22 is pin-installed on the lateral support 12, and a first traction long hole 221 for slidably sleeving the first traction bolt 211 is opened in the middle of the reciprocating swing rod 22. A second traction long hole 222 is opened at the upper end of the reciprocating swing rod 22. Under the traction of the traction turntable 21, the reciprocating swing rod 22 swings left and right with the lateral support 12 as the fulcrum.

[0126] The reciprocating moving frame 23 is slidably installed on the lateral support 12, and a second traction bolt 231 fixedly connected to the reciprocating moving frame 23 and slidably sleeved in the second traction long hole 222 is provided. It should be noted that a long hole structure for slidably installing the reciprocating moving frame 23 is horizontally opened in the lateral support 12. During the swinging process of the reciprocating swing rod 22, the reciprocating moving frame 23 is driven to linearly reciprocate along the long hole.

[0127] For details, refer to the attached Figure 3 , the wedge head lifting push rod 24 is slidably sleeved in the reciprocating moving frame 23, the wedge head abutting block 25 is integrally connected to the lateral support 12, and the wedge head abutting block 25 is in active contact with the wedge head lifting push rod 24. When the reciprocating moving 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 abutting block 25, under the action of gravity, the wedge head lifting push rod 24 is in a downward contracting state, and at this time, the wedge head lifting push rod 24 does not contact the feeding moving seat 26. When the reciprocating moving 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 abutting block 25, the wedge head lifting push rod 24 extends vertically upward, and at this time, the wedge head lifting push rod 24 contacts and horizontally pushes the feeding moving seat 26 at the initial position.

[0128] The feeding moving seat 26 is slidably arranged on the platform 11. It should be noted that the left end of the guiding long hole communicates with a notch larger than the feeding moving seat 26, so that after the feeding moving seat 26 conveys the wire accessories to the designated position, it can fall, which is convenient for subsequent use. And the number of the feeding moving seats 26 is at least three. Two of the feeding moving seats 26 are located on the platform 11 to support the wire accessories, and the other is for backup. When one of the feeding moving seats 26 on the platform 11 falls through the notch at the left end position, a feeding moving seat 26 is supplemented at the right end of the platform 11. And the feeding moving seat 26 is in movable contact with the wedge head lifting push rod 24. The feeding moving seat 26 includes a hollow convex block 261, a limiting groove 262, a C-shaped 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 convex block 261 is slidably installed in the guiding long hole and can move horizontally along the guiding long hole under the pressure of the wedge head lifting push rod 24.

[0130] The limiting groove 262 is opened at the upper end position of the hollow convex block 261, and the limiting groove 262 is a column groove structure corresponding to the wire accessories, so as to initially place the wire accessories on the hollow convex block 261.

[0131] The C-shaped cavity 263 is opened at the lower end position of the hollow convex block 261, and the automatic telescopic rod 264 is fixedly arranged in the C-shaped cavity 263.

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

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

[0134] The elastic wedge head clamp 268 is slidably sleeved in the C-shaped cavity 263 and extends into the limiting groove 262 movably, and the elastic wedge head clamp 268 is in movable contact with the wedge head telescopic rod 267. Specifically, refer to the attached Figure 4 To the attached Figure 5 , it should be noted that a receiving groove structure is symmetrically opened in the hollow convex block 261 and located in the limiting groove 262, so as to contract and receive the elastic wedge head clamp 268. A return spring is arranged on the elastic wedge head clamp 268, and under the tension of the return spring, the elastic wedge head clamp 268 that is not pressed by the wedge head telescopic rod 267 can reset itself.

[0135] The preheating mechanism 3 is arranged at the middle position of the machine body 1, and the preheating mechanism 3 is used to heat the part of the wire accessory to be bent to 85 °C. For details, refer to the attached Figure 7 to the 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 notch 35, an automatic lifting plate 36, a telescopic push rod 37, a folding support rod 38, a heat-conducting clamping plate 39, a limiting collar 310, a limiting through-hole slider 311, and a limiting insertion rod 312:

[0136] The central pillar 31 is integrally installed in the hollow pillar 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 installed 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] The number of the limiting round rods 34 is four, and the four limiting round rods 34 are circumferentially and equidistantly distributed on the load-bearing bracket 32 and fixedly extend outside the top end of the central pillar 31. The storage notch 35 is opened in the limiting round rod 34 to facilitate adjusting the position of the heat-conducting clamping plate 39 by using the storage notch 35, so that the heat-conducting clamping plate 39 can clamp wire accessories of different sizes during the adjustment process, thereby comprehensively conducting high-temperature heat to the bending part of the wire accessories.

[0139] The automatic lifting plate 36 is movably installed on the load-bearing bracket 32. The telescopic push rod 37 is slidably sleeved in the limiting round rod 34. The upper end of the telescopic push rod 37 extending into the storage notch 35 is integrally connected with a fourth traction bolt 371, and the lower end of the telescopic push rod 37 is movably abutted against the automatic lifting plate 36. When the automatic lifting plate 36 moves upward, it supports the telescopic push rod 37 to move upward to support and fix the folding support rod 38 in the storage notch 35.

[0140] The folding support rod 38 is pin-mounted in the storage notch 35, and a fourth traction long hole 381 for slidably sleeving the fourth traction bolt 371 is opened in the folding support rod 38.

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

[0142] The limiting drawstring opening 310 is formed in the limiting round rod 34, and the limiting drawstring opening 310 communicates with the receiving notch 35. The limiting through-hole slider 311 is slidably sleeved in the limiting drawstring opening 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 pulled 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 opening 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 commutation pressure-applying mechanism 4 is arranged at the middle position of the machine body 1, and the commutation 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 Figure 9 - attached Figure 12 , the commutation pressure-applying mechanism 4 includes a guiding arc groove 41, a guiding slider 42, an automatic lifting frame 43, a reciprocating spiral tube 44, a driving gear 45, and a driven gear column 46:

[0144] The guiding arc groove 41 is formed 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 function for the guiding slider 42 in the horizontal direction, and the guiding slider 42 provides a guiding function for the automatic lifting frame 43 in the vertical direction, so that the reciprocating spiral tube 44 realizes spiral lifting and adjustment in the hollow support column 13.

[0145] The reciprocating spiral tube 44 is fixedly connected to the automatic lifting frame 43, and the reciprocating spiral 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 spiral 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 Figure 9 , an arc opening corresponding to the driven gear column 46 and the driving gear 45 is formed at the side wall position of the hollow support column 13. A U-shaped bracket for rotatably installing the driving gear 45 is further arranged on the outer wall of the hollow support column 13. The reciprocating spiral 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 spiral tube 44 can only perform reciprocating rotation of less than 180° because of the bending action.

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

[0148] The annular cavity 47 is formed in the reciprocating spiral tube 44.

[0149] Specifically refer to the attached instructions Figure 15 Since the bending direction of the wire accessories is not unique, the number of receiving sinkholes 48 is two. The two receiving sinkholes 48 are symmetrically arranged at the top of the reciprocating rotary tube 44, and the receiving sinkholes 48 communicate with the annular cavity 47, so as to symmetrically arrange two pressurizing components 411.

[0150] The double-headed swing rod 49 is rotatably installed in the annular cavity 47, and fifth traction long 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 extends into the receiving sinkhole 48, and a fifth traction bolt 4101 that is integrally connected to the driven lifting rod 410 and slidably sleeved in the fifth traction long hole 491 is provided. In the initial state, the pressurizing component 411 is received in the receiving sinkhole 48. When it is determined that the wire accessory needs to be bent forward, a set of pressurizing components 411 at the rear position is adjusted to extend out of the receiving sinkhole 48.

[0152] The pressurizing component 411 is fixedly installed at the upper end position of the driven lifting rod 410 on the driven lifting rod 410.

[0153] The pressurizing component 411 includes a square pressurizing block 4111, a hexagonal prism pressurizing block 4112, and a columnar pressurizing block 4113:

[0154] The square pressurizing block 4111 is fixedly installed on the driven lifting rod 410, the hexagonal prism pressurizing block 4112 is fixedly installed on the square pressurizing block 4111, and the columnar pressurizing block 4113 is fixedly installed on the hexagonal prism pressurizing block 4112. Specifically refer to the attached instructions Figure 15 By adjusting the columnar pressurizing block 4113 in the pressurizing component 411 to be lifted to the height position corresponding to the wire accessory horizontally, and then driving the reciprocating rotary tube 44 to rotate, the wire accessory can be pressed by the columnar pressurizing block 4113.

[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 accessory. Specifically refer to the attached instructions Figure 13 And the attachment Figure 14 The detection mechanism 5 includes a reciprocating moving block 51, a steering rotating ring 52, a driving ratchet 53, a driven gear ring 54, a ultrasonic transmitter 55, and a ultrasonic receiver 56:

[0156] The reciprocating moving block 51 is slidably installed in the extending notch 14. It should be noted that a driving cylinder for pulling the reciprocating moving block 51 to linearly reciprocate is provided on the platform 11, so that the reciprocating moving block 51 can drive the ultrasonic transmitter 55 to perform detection operations corresponding to different parts of the wire accessory with the ultrasonic transmitter 55.

[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 a stepper motor for driving the driving ratchet 53 to rotate is provided in the reciprocating block 51.

[0159] The driven gear ring 54 is fixedly mounted on the steering swivel 52, and the driven gear ring 54 is meshed with 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 bent part of the wire fitting 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. By using ultrasonic imaging twice before and after, it is determined whether there are cracks in the wire bending part, which is helpful to improve the efficiency and quality inspection level of wire bending processing.

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

[0162] The functional principle of the present invention can be described through the following operation mode:

[0163] First, place the wire fitting on the feeding moving seat 26, control the automatic telescopic rod 264 to start, so that the traction lever 265 deflects. 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 fitting to ensure clamping stability. Clamp and fix the wire fitting in the limit groove 262, control the traction turntable 21 to rotate, so that the reciprocating swing rod 22 deflects, driving the reciprocating moving frame 23 to move linearly. When driving the wedge head lifting push rod 24 to move and contact the wedge head abutting block 25, the wedge head lifting push rod 24 moves upward to contact the hollow convex block 261, and the wire fitting is conveyed to the left through the feeding moving seat 26, so that the part of the wire fitting to be bent passes through the four limit round rods 34.

[0164] Secondly, control the automatic lifting plate 36 to move upward, so that the telescopic push rod 37 supports the deflection of the opening and closing support rod 38. Through the movable limit between the limit through-hole slider 311 and the limit insertion rod 312, the heat-conducting clamping plates 39 on the four limit round rods 34 approach each other until they touch the part of the wire accessory to be bent. Control the heater 33 to turn on, so that the limit round rods 34 and the heat-conducting clamping plates 39 quickly heat up until the part of the wire accessory to be bent reaches 85°C. Through heating, the structure of the part of the wire accessory to be bent is softened, and it is more easily shaped and deformed during the stress process, avoiding cracking caused by hard extrusion inside the structure due to excessive stress.

[0165] Thirdly, control the deflection of the double-headed swing rod 49, use the driven lifting rod 410 to support the pressurizing component 411 to move vertically upward to the required position, control the driving gear 45 to rotate, drive the reciprocating rotating tube 44 to deflect through the driven gear column 46, and drive the pressurizing component 411 to press on the part of the wire accessory to be bent. Adjust the height position of the pressurizing component 411 according to the bending shape requirement, so that one of the square pressurizing block 4111, the hexagonal prism pressurizing block 4112, and the columnar pressurizing block 4113 can horizontally correspond to the wire bending part.

[0166] Then, use the feeding mechanism 2 to continue pushing the wire accessory until the bent part of the wire accessory moves to the position of the detection mechanism 5.

[0167] Finally, control the reciprocating moving block 51 to move along the extension notch 14, drive the steering rotating ring 52 to rotate through the driving ratchet 53 and the driven gear ring 54. During this process, use the ultrasonic transmitter 55 to emit ultrasonic waves to the bent part of the wire accessory, and then use the ultrasonic receiver 56 to receive the ultrasonic waves passing through the wire bending part to judge whether there are cracks in the bent part of the wire accessory, which helps to conduct real-time quality inspection on the wire accessories after bending processing, improve efficiency and effectively control the bending processing level at the same time.

[0168] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and 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 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), the detection mechanism (5) being arranged at the left end of the machine body (1), and the detection mechanism (5) being used to detect whether there are cracks at the bending part of the wire material accessory; 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), wherein the extension slot (14) is opened at the left end of the platform (11), and the detection mechanism (5) is arranged through the extension slot (14); 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).

2. A bending device for building metal accessories according to claim 1, 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).

3. A bending device for building metal accessories according to claim 2, 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).

4. A bending device for building metal accessories according to claim 3, 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).

5. A bending device for building metal accessories according to claim 4, 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).

6. A bending device for building metal accessories according to claim 5, 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).

7. A bending device for building metal accessories according to claim 6, characterized in that: The ultrasonic transmitter (55) and the ultrasonic receiver (56) are symmetrically arranged about the center of the steering swivel (52).

8. A bending method for a bending device for building metal accessories according to claim 7, 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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