CN108746418A - A kind of bending and molding device of metal wire rod - Google Patents

Abstract

The metal wire bending and forming device of the present invention includes a frame, a bending mechanism, an adjustment mechanism and a pneumatic system. Two adjustment mechanisms are arranged on the workbench, and the two adjustment mechanisms can move in the same direction or in the opposite direction relative to the workbench. There are two bending mechanisms, which are respectively arranged at the lower part of the two adjustment mechanisms and can move As the adjustment mechanism moves, the pneumatic system is connected with the bending mechanism, and is used to control the bending part of the bending mechanism to rotate clockwise or counterclockwise. Compared with the prior art, the bending forming device of the present invention is provided with two adjustment structures and a bending mechanism, so that the device can bend two parts of the wire at the same time, and can move the adjustment mechanism and the bending mechanism synchronously, Make the bending mechanism correspond to the part of the wire to be bent, so as to meet the processing requirements of metal wire products of different specifications and shapes.

Description

Bending and forming device for metal wire

technical field

The invention relates to the field of metal wire processing, in particular to a metal wire bending and forming device.

Background technique

At present, most of the same type of wires at home and abroad use general-purpose wire bending forming devices or manual bending to achieve the required product shape and size. Manual bending of wire rods requires a lot of physical strength of the operators, and the production efficiency is low, which cannot meet the mass demand of customers. Using the existing wire bending forming device to process the metal wire can improve the processing efficiency of the metal wire and realize mass production. However, the existing bending and forming devices generally have complex structures and poor versatility. They can only handle a single specification of wire, and it is difficult to adjust the bending position of the wire. They can only bend the wire into specific shapes or radians. Therefore, if various wire products need to be produced in batches, more wire bending and forming devices need to be manufactured or purchased, which is not conducive to cost saving.

It can be seen from the above that the existing wire bending and forming device still needs further structural improvement to meet the requirements for producing metal wire products of various specifications and shapes.

Contents of the invention

The object of the present invention is to provide a metal wire bending and forming device. The metal wire bending and forming device of the present invention has strong versatility, is suitable for mass production of wire products of different specifications, and can effectively reduce the cost of wire products. Cost of production.

In order to realize the above object of the invention, the present invention takes the following technical solutions:

The metal wire bending and forming device includes a frame, a bending mechanism, an adjustment mechanism and a pneumatic system. The upper part of the frame is provided with a workbench, and two adjacent adjustment mechanisms are provided. Set on the workbench, the two adjustment mechanisms can move in the same direction or reversely relative to the workbench. There are two bending mechanisms, which are respectively arranged at the lower part of the two adjustment mechanisms and can move with the The adjusting mechanism moves, and the pneumatic system is connected with the bending mechanism for controlling the bending part of the bending mechanism to rotate clockwise or counterclockwise.

Compared with the prior art, the bending forming device of the present invention is provided with two adjustment structures and a bending mechanism, so that the device can bend two parts of the wire at the same time, and can move the adjustment mechanism and the bending mechanism synchronously, Make the bending mechanism correspond to the part of the wire to be bent, so as to meet the processing requirements of metal wire products of different specifications and shapes. Since the metal wire bending and forming device of the present invention has a simple, compact overall structure and strong versatility, it helps to reduce the production cost of metal wire products.

In order to realize the installation and movement functions of the bending mechanism, the adjustment mechanism includes a fixed seat, a positioning slide plate and a transmission screw rod, the positioning slide plate is arranged on the frame, and the fixed seat is slidable with the fixed seat through the guide column. The positioning slide plate is connected, which is arranged along the length direction of the frame and is threadedly connected with the fixing seat, the positioning sliding plate is arranged on the upper side of the fixing seat, the bending mechanism is arranged on the fixing seat and The lower side of the positioning slide. This structure controls the movement of the bending mechanism through the transmission screw rod. By controlling the forward/reverse rotation of the transmission screw rod, the bending mechanism moves toward the end/middle of the workbench. Through this structure, the operator can use two The distance between adjacent bent parts adjusts the distance between two bent parts.

In order to realize the bending function of the bending part, the bending mechanism also includes a driving cylinder and a transmission assembly, the driving cylinder is arranged at one end of the fixed seat, and the bending part is rotatably arranged on the fixed seat and set opposite to the driving cylinder, the driving cylinder drives the bending part to rotate clockwise or counterclockwise through the transmission assembly.

Further, the transmission assembly includes a transmission rack and a transmission gear, one end of the transmission rack is connected to the shaft end of the driving cylinder, and the other end of the transmission gear is engaged with the side wall of the transmission gear , the transmission gear is arranged on the lower side of the bending part and is fixedly connected with the bending part, the bending part includes a turntable, and a corner head is arranged on the upper edge of the turntable. Drive the transmission rack to move back and forth through the drive cylinder to make the drive gear rotate forward/reversely, and drive the turntable to rotate. When the turntable rotates, the corner head moves along the edge of the turntable, and the corresponding part of the wire rod and the corner head is deformed under pressure.

Still further, the end of the fixed seat away from the driving cylinder is provided with a limit bolt and a limit guide groove, the opening of the limit guide groove corresponds to the transmission rack, and the limit bolt is set on the limit The inner end of the guide groove, the transmission rack can move in the limit guide groove, and the limit bolt is used to limit the displacement of the inner end of the drive rack guide groove. In this structure, the displacement of the transmission rack is limited by the limit bolt, so as to control the bending arc.

In order to realize the connection between the bending part and the positioning slide plate, the positioning slide plate is provided with a guide groove and a connecting hole, and the fixing seat is provided with a bending part mounting seat, and the bending part mounting seat is connected with the driving cylinder Relatively arranged, the two sides of the bending part mounting seat are provided with connecting protrusions; the positioning slide plate is arranged on the bending part mounting seat so that the connecting protrusions pass through the connecting holes, and the bending part through the guide slot.

Further, the frame is provided with a slide guide groove corresponding to the positioning slide plate, and the positioning slide plate cooperates with the slide plate guide groove to be provided with a slide plate adjusting bolt, and the slide plate adjusting bolt passes through the positioning slide plate and the slide plate guide The slots are connected and slidable along the interior of the slideway guide. This structure realizes the installation of the positioning slide plate, and through this structure, the positioning slide plate is slidably connected with the frame, and the positioning slide plate can move synchronously with the movement of the bending mechanism.

Preferably, the pneumatic system includes two air filter duplexes, two solenoid valves and an electric control pedal, the input end of the air filter duplex is connected to an external air supply device, and the air filter duplex The output ends of the body are respectively connected to the air inlets of the two solenoid valves, and an air pressure regulating valve is provided between the output end and the input end of the air filter duplex, and the output end of the solenoid valve is provided with a first An air outlet and a second air outlet, the driving cylinder is correspondingly provided with a first air inlet and a second air inlet, and the solenoid valve is connected to a power supply through an electric control pedal. Through this structure, the operator can control the bending work of the device by stepping on the electric control pedal, and the operation mode is simple and direct, and the air pressure can be adjusted according to the specification of the wire.

Preferably, it also includes a first positioning structure and a second positioning structure, the first positioning structure is arranged on the positioning slide plate and is located between the middle part of the worktable and the guide groove, and the first positioning structure includes a first positioning block and the second positioning block, the second positioning block is fixedly connected with the positioning slide plate, the first positioning block is provided with a fixed chute arranged along the width direction of the installation platform, and the fixed chute is fixed by setting the first The bolt is connected with the positioning slide plate, and the fixing chute can slide along the side wall of the first fixing bolt, so as to adjust the distance between the first positioning block and the second positioning block. between the first positioning block and the second positioning block. This structure realizes the fixing of the wire, and adjusts the position of the first positioning block through the cooperation of the first fixing bolt and the fixing chute, so as to adjust the width between the first positioning block and the second positioning block. The adjustment method is simple and flexible, and can be Effectively improve work efficiency.

Preferably, the second positioning structure is arranged on the upper side of one of the positioning slide plates and between the side of the workbench and the guide groove, which includes a limit block, a second fixing bolt, a scale and several limit holes, the limiting holes are arranged along the length direction of the workbench and are located on the same straight line as the wires, the limiting blocks are detachably connected to the limiting holes through the second fixing bolts, and the scale is set on one side of the limiting hole. This structure moves the limit block according to the distance between the wire rod to be bent and one end of the wire rod, so that the distance from the limit block to the forming guide rail is equal to it.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure of a bending forming device for a metal wire;

Fig. 2 is a schematic diagram of the overall structure of another angle of the bending and forming device for metal wires;

Fig. 3 is a schematic diagram of the overall structure of the third angle of the bending forming device of the metal wire;

Fig. 4 is the structural representation of frame;

Fig. 5 is a schematic structural view of the fixing seat;

Fig. 6 is a structural schematic diagram of another angle of the fixing seat;

Fig. 7 is a structural schematic diagram of another angle of the adjustment mechanism.

Label description:

Metal wire bending and forming device 1, frame 2, workbench 201, installation guide groove 203, storage bracket 204, jacking bolt 205, first screw hole 2051, slide plate guide groove 206, driving cylinder 301, turntable 302, Corner head 3021, fixed seat 303, cylinder mounting groove 3031, transmission rack 304, rotating gear 305, second screw hole 307, third screw hole 308, limit screw hole 3091, bending part mounting seat 3051, gear mounting groove 3052, screw connection groove 3053, limit bolt 3055, limit guide groove 3054, connection protrusion 306, air filter duplex 401, solenoid valve 402, first air outlet 4021, second air outlet 4022, positioning slide plate 501, guide groove 5012, first positioning block 503, second positioning block 504, first fixing bolt 5041, fixing chute 5042, limiting block 505, second fixing bolt 506, limiting hole 5011, connecting hole 5013, The third positioning block 507, the positioning bolt 508, the fourth screw hole 5071, the scale 5014, the slide plate adjustment bolt 5015, the electric control pedal 601, the connection terminal 602, the handle 701, the driving screw 702, the fixing plate 703, the first through hole 7031.

Detailed ways

In order to realize the above object of the invention, the present invention takes the following technical solutions:

In the description of the present invention, it should be understood that the orientations or positional relationships indicated by "up", "down", "left", "right", "horizontal", "inside" and "outside" are based on The orientation or positional relationship shown in the drawings is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as Limitations on the Invention. The fixed connection in the present invention includes traditional fixed connection methods such as screw connection and riveting.

Referring to Figures 1-7, the metal wire bending and forming device 1 of the present invention includes a frame 2, a bending mechanism, an adjustment mechanism and a pneumatic system, and the upper part of the frame 2 is provided with a workbench 201, and the adjustment There are two mechanisms adjacent to each other. The two adjustment mechanisms are arranged on the workbench 201. The two adjustment mechanisms can move in the same direction or in the opposite direction relative to the workbench 201. The bending mechanism is provided with Two, respectively arranged at the lower part of the two adjustment mechanisms and can move with the adjustment mechanism, the frame 2 cooperates with the fixed seat 303 to be provided with an installation guide groove 203 arranged along the length direction of the workbench 201, the pneumatic The system is connected with the bending mechanism and is used to control the bending part of the bending mechanism to rotate clockwise or counterclockwise. In order to facilitate the extraction of wires, the upper side of the frame 2 is provided with a storage bracket 204 for placing wires.

In order to realize the installation and moving functions of the bending mechanism, the adjustment mechanism includes a fixed seat 303, a positioning slide 501 and a transmission screw 702, the positioning slide 501 is arranged on the frame 2, and the fixed seat 303 passes through the guide The column is slidably connected with the positioning slide plate 501, which is arranged along the length direction of the frame 2 and is threadedly connected with the fixing seat 303, the positioning sliding plate 501 is arranged on the upper side of the fixing seat 303, and the folding The bending mechanism is arranged on the fixing seat 303 and is located on the lower side of the positioning slide plate 501 . This structure controls the movement of the bending mechanism through the transmission screw 702. By controlling the forward/reverse rotation of the transmission screw 702, the bending mechanism moves toward the end/middle of the workbench 201. Through this structure, the operator can The distance between two adjacent bent parts of the wire rod adjusts the distance between the two bent parts. Preferably, the side of the frame 2 is provided with a fixed plate 703, the fixed plate 703 is provided with a first through hole 7031 in cooperation with the transmission screw 702, and the left and right sides of the fixed seat 303 are respectively provided with The second screw hole 307, the third screw hole 308, one end of the transmission screw 702 is installed on the fixed plate 703 through the first through hole 7031, and the other end is connected to the fixing seat through the second screw hole 307, the third screw hole 308 303 connection, the transmission screw 702 is also provided with a handle 701 so that the operator can control the rotation of the transmission screw 702 through the handle 701 .

In order to realize the bending function of the bending part, the bending mechanism also includes a driving cylinder 301 and a transmission assembly, the driving cylinder 301 is arranged at one end of the fixing seat 303, and the bending part is rotatably arranged on the On the fixed seat 303 and opposite to the driving cylinder 301, the driving cylinder 301 drives the bending part to rotate clockwise or counterclockwise through the transmission assembly.

According to the further optimization of the above scheme, the transmission assembly includes a transmission rack 304 and a transmission gear, one end of the transmission rack 304 is connected to the shaft end of the driving cylinder 301, and the other end of the transmission gear is connected to the transmission The side walls of the gears are toothed and connected. The transmission gear is arranged on the lower side of the bending part and is fixedly connected with the bending part. The bending part includes a turntable 302, and the upper edge of the turntable 302 is provided with a corner Head 3021. Drive the drive rack 304 to move back and forth through the drive cylinder 301 to make the drive gear rotate forward/reversely, and drive the turntable 302 to rotate. During the rotation of the turntable 302, the corner head 3021 moves along the edge of the turntable 302, and the wire rod corresponds to the corner head 3021. The parts are deformed under pressure. Preferably, the fixed seat 303 is respectively provided with a cylinder installation groove 3031 and a gear installation groove 3052 corresponding to the driving cylinder 301 and the rotating gear 305, and the gear installation groove 3052 is arranged on the lower side of the bending part. One end of the transmission rack 304 close to the gear is disposed in the gear installation groove 3052 . The gear mounting groove 3052 is provided with a screw connecting groove 3053 , and the second screw hole 307 and the third screw hole 308 are set on the side wall of the screw connecting groove 3053 .

According to the further optimization of the above scheme, the end of the fixed seat 303 away from the driving cylinder 301 is provided with a limit bolt 3055 and a limit guide groove 3054, the opening of the limit guide groove 3054 corresponds to the transmission rack 304, The limit bolt 3055 is arranged at the inner end of the limit guide groove 3054, the transmission rack 304 can move in the limit guide groove 3054, and the limit bolt 3055 is used to limit the transmission gear The amount of displacement of the strip 304 at the inner end of the guide slot. In this structure, the displacement of the transmission rack 304 is limited by the limit bolt 3055, so as to control the bending arc. Specifically, the side wall of the limit guide groove 3054 opposite to the opening is provided with a limit screw hole 3091, and the limit bolt 3055 is installed in the limit screw hole 3091, and the limit bolt 3055 is inserted into the limit guide groove 3054 by turning the bolt. Advance or retreat to control the maximum displacement of the transmission rack 304 in the limiting guide groove 3054 .

In order to realize the connection between the bending part and the positioning slide plate 501, the positioning slide plate 501 is provided with a guide groove 5012 and a connection hole 5013, and the fixing seat 303 is provided with a bending part mounting seat 3051, and the bending part is installed The seat 3051 is arranged opposite to the driving cylinder 301, and the two sides of the bending part mounting seat 3051 are provided with connecting protrusions 306; the positioning slide plate 501 is arranged on the bending part mounting seat 3051 so that the connecting protrusions The lifting part 306 passes through the connecting hole 5013 , and the bent part passes through the guiding groove 5012 .

According to the further optimization of the above-mentioned connection scheme between the bending part and the positioning slide plate 501, the frame 2 is provided with a slide plate guide groove 206 corresponding to the positioning slide plate 501, and the positioning slide plate 501 cooperates with the slide plate guide groove 206 to be provided with a slide plate adjusting bolt 5015 , the slider adjusting bolt 5015 passes through the positioning slider 501 to connect with the slider guide groove 206 and can slide along the inside of the slider guide groove 206 . This structure realizes the installation of the positioning slide 501, and the positioning slide 501 is slidably connected with the frame 2 through this structure, and the positioning slide 501 can move synchronously with the movement of the bending mechanism.

In order to realize the air supply control of the bending mechanism, the pneumatic system includes two air filter duplexes 401, two solenoid valves 402 and an electric control pedal 601, the input end of the air filter duplex 401 is connected to the external supply The output end of the air filter duplex 401 is respectively connected to the air inlets of the two solenoid valves 402, and an air pressure is set between the output end and the input end of the air filter duplex 401. regulating valve, the output end of the electromagnetic valve 402 is provided with a first air outlet 4021 and a second air outlet 4022, and the driving cylinder 301 is correspondingly provided with a first air inlet and a second air inlet, and the electromagnetic valve 402 passes through The electric control pedal 601 is connected with a power supply. Through this structure, the operator can control the bending work of the device by stepping on the electric control pedal 601. The operation mode is simple and direct, and the air pressure can be adjusted according to the specification of the wire. Preferably, a connection terminal 602 is also included, and the pneumatic system is connected to a power source through the connection terminal 602 .

Preferably, it also includes a first positioning structure and a second positioning structure. The first positioning structure is arranged on the positioning slide plate 501 and is located between the middle part of the worktable 201 and the guide groove 5012. The first positioning structure includes a second positioning structure. A positioning block 503 and a second positioning block 504, the second positioning block 504 is fixedly connected with the positioning slide plate 501, the first positioning block 503 is provided with a fixed chute 5042 arranged along the width direction of the installation platform, the The fixing chute 5042 is connected with the positioning slide plate 501 by setting the first fixing bolt 5041, and the fixing chute 5042 can slide along the side wall of the first fixing bolt 5041, so as to adjust the first positioning block 503 and the second positioning block 503. The distance between the two positioning blocks 504 , the wire is sandwiched between the first positioning block 503 and the second positioning block 504 . This structure realizes the fixing of the wire, and adjusts the position of the first positioning block 503 through the cooperation of the first fixing bolt 5041 and the fixing chute 5042, so as to adjust the width between the first positioning block 503 and the second positioning block 504. The method is simple and flexible, which can effectively improve work efficiency. Preferably, it also includes a third positioning block 507 and a positioning bolt 508, the third positioning block 507 is arranged opposite to the first positioning block 503, and is close to the side of the first positioning block 503 away from the second positioning block 504, The third positioning block 507 is provided with a fourth screw hole 5071 , one end of the positioning bolt 508 is threadedly connected with the fourth screw hole 5071 , and the other end is against the side wall of the first positioning block 503 .

Preferably, the second positioning structure is arranged on the upper side of one of the positioning slide plates 501 and between the side of the worktable 201 and the guide groove 5012, which includes a limit block 505, a second fixing bolt 506, a scale 5014 and several limit holes 5011, the limit holes 5011 are arranged along the length direction of the workbench 201 and on the same line as the wire, the limit block 505 is connected to the limit by the second fixing bolt 506 The positioning hole 5011 is detachably connected, and the scale 5014 is arranged on one side of the limiting hole 5011. This structure moves the limit block 505 according to the distance between the wire to be bent and one end of the wire, so that the distance from the limit block 505 to the forming guide rail is equal to it.

Preferably, the bottom of the frame 2 is provided with a lifting structure, and the lifting mechanism includes a first screw hole 2051 and a jacking bolt 205, and the first screw hole 2051 is vertically arranged at the bottom of the supporting foot of the frame 2, The jacking bolt 205 is threadedly connected with the first screw hole 2051 , and the operator adjusts the height of the frame 2 by rotating the jacking bolt 205 forward or reverse.

work process:

(1) Adjust the limit block 505 according to the distance value D1 between one end of the wire and the position to be bent near the end, so that the distance between the limit block 505 and the corner head 3021 close to the position to be bent is equal to D1;

(2) Adjust the distance between the two corner heads 3021 according to the distance D2 between two adjacent parts of the wire to be bent, so that the distance between the two corner heads 3021 is equal to D2.

(3) Place the wire on the positioning slide 501 so that the wire is sandwiched between the first positioning block 503 and the second positioning block 504 , and one end of the wire is abutted against the limiting block 505 .

(4) Adjust the limit bolts 3055 of the two bending machines respectively according to the bending radians of the two parts to be bent, start the power supply, and perform the bending work.

Compared with the prior art, the bending forming device of the present invention is provided with two adjustment structures and a bending mechanism, so that the device can bend two parts of the wire at the same time, and can move the adjustment mechanism and the bending mechanism synchronously, Make the bending mechanism correspond to the part of the wire to be bent, so as to meet the processing requirements of metal wire products of different specifications and shapes. Since the metal wire bending and forming device 1 of the present invention has a simple, compact overall structure and strong versatility, it helps to reduce the production cost of metal wire products.

According to the disclosure and teaching of the above-mentioned specification, those skilled in the art to which the present invention belongs can also make changes and modifications to the above-mentioned embodiment. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should also fall within the protection scope of the claims of the present invention. In addition, although some specific terms are used in this specification, these terms are only for convenience of description and do not constitute any limitation to the present invention.

Claims (10)

1. A bending and forming device for metal wires, characterized in that: it comprises a frame, a bending mechanism, an adjustment mechanism and a pneumatic system, the upper part of the frame is provided with a workbench, and the adjustment mechanism is adjacent to two The two adjustment mechanisms are arranged on the workbench, and the two adjustment mechanisms can move in the same direction or in the opposite direction relative to the workbench. There are two bending mechanisms, which are respectively arranged on the two The lower part of the adjustment mechanism can move with the adjustment mechanism, and the pneumatic system is connected with the bending mechanism for controlling the bending part of the bending mechanism to rotate clockwise or counterclockwise. 2. The metal wire bending and forming device according to claim 1, characterized in that: the adjustment mechanism includes a fixed seat, a positioning slide plate and a driving screw, the positioning slide plate is arranged on the frame, and the The fixed seat is slidably connected with the positioning slide plate through the guide column, which is arranged along the length direction of the frame and is threadedly connected with the fixed seat, the positioning slide plate is arranged on the upper side of the fixed seat, and the bent The mechanism is arranged on the fixing seat and is located at the lower side of the positioning slide plate. 3. The metal wire bending and forming device according to claim 2, characterized in that: the bending mechanism further includes a driving cylinder and a transmission assembly, the driving cylinder is arranged at one end of the fixed seat, and the bending The bending part is rotatably arranged on the fixing seat and is arranged opposite to the driving cylinder, and the driving cylinder drives the bending part to rotate clockwise or counterclockwise through the transmission assembly. 4. The metal wire bending and forming device according to claim 3, characterized in that: the transmission assembly includes a transmission rack and a transmission gear, one end of the transmission rack is connected to the shaft end of the driving cylinder, The other end of the transmission gear is meshed with the side wall of the transmission gear. The transmission gear is arranged on the lower side of the bending part and is fixedly connected with the bending part. The bending part includes a turntable. The upper edge of the turntable is provided with a corner head. 5. The metal wire bending and forming device according to claim 4, characterized in that: the end of the fixing seat away from the driving cylinder is provided with a limit bolt and a limit guide groove, the opening of the limit guide groove is in line with the Corresponding to the transmission rack, the limit bolt is arranged at the inner end of the limit guide groove, the transmission rack can move in the limit guide groove, and the limit bolt is used to limit the The displacement of the inner end of the drive rack guide groove. 6. The metal wire bending and forming device according to claim 3, characterized in that: the positioning slide plate is provided with a guide groove and a connecting hole, and the fixing seat is provided with a bending part mounting seat, and the The bending part mounting seat is arranged opposite to the driving cylinder, and the two sides of the bending part mounting seat are provided with connecting protrusions; the positioning slide plate is arranged on the bending part mounting seat so that the connecting protrusions pass through Through the connecting hole, the bent portion passes through the guiding groove. 7. The metal wire bending and forming device according to claim 3, characterized in that: the frame is provided with a slide guide groove corresponding to the positioning slide plate, and the positioning slide plate is provided with a slide plate adjustment in cooperation with the slide plate guide groove The slider adjusting bolt passes through the positioning slider and is connected with the slider guide groove and can slide along the inside of the slider guide groove. 8. The metal wire bending and forming device according to claim 3, characterized in that: the pneumatic system includes two air filter duplexes, two solenoid valves and an electric control pedal, and the air filter duplex The input end of the air filter body is connected to the external air supply equipment, the output end of the air filter duplex is respectively connected to the air inlets of the two solenoid valves, and the output end of the air filter duplex body and the input end are connected to each other. There is an air pressure regulating valve between them. The output end of the solenoid valve is provided with a first air outlet and a second air outlet. The driving cylinder is correspondingly provided with a first air inlet and a second air inlet. Connect the control pedal to the power supply. 9. The metal wire bending and forming device according to claim 5, further comprising a first positioning structure and a second positioning structure, the first positioning structure is arranged on the positioning slide plate and is located in the middle of the workbench Between the guide groove, the first positioning structure includes a first positioning block and a second positioning block, the second positioning block is fixedly connected with the positioning slide plate, and the first positioning block is provided with a A fixed chute arranged in the width direction, the fixed chute is connected with the positioning slide plate by setting the first fixing bolt, and the fixed chute can slide along the side wall of the first fixing bolt to adjust the first positioning The distance between the block and the second positioning block, the wire is sandwiched between the first positioning block and the second positioning block. 10. The metal wire bending and forming device according to claim 9, characterized in that: the second positioning structure is arranged on the upper side of one of the positioning slide plates and between the side of the worktable and the guide groove, It includes a limit block, a second fixing bolt, a scale and several limit holes. The limit holes are arranged along the length direction of the workbench and are on the same line as the wire. The limit block passes through the first Two fixing bolts are detachably connected to the limiting hole, and the scale is arranged on one side of the limiting hole.