阅读说明：本技术 围栏自动折弯与焊接装置 (Automatic bending and welding device for fence ) 是由 孙晓东 杨超 刘斌 徐晓峰 郭敏 赵飞 王新宇 钱美 吕英杰 于 2021-08-26 设计创作，主要内容包括：本发明公开了一种围栏自动折弯与焊接装置,涉及围栏折弯与焊接装置领域。本装置包括底座机构、定形机构、纵向机构、横向机构、旋转机构和卸料机构,底座机构固定安装在地面上作为基座,且具备剪切围栏、焊接围栏的功能,定形机构固定安装在底座机构上,实现调节围栏大小的功能,纵向机构固定安装在底座机构上,实现纵向移动的功能,横向机构滑动安装在纵向机构上,实现水平移动的功能,旋转机构旋转安装在横向机构上,实现旋转与折弯的功能,卸料机构将工件存放在一起。具有可调节围栏尺寸,自动下料,自动折弯,自动焊接,自动取件等多种优点。节省人力,降低生产人工成本,提升工作效率。(The invention discloses an automatic fence bending and welding device, and relates to the field of fence bending and welding devices. The device comprises a base mechanism, a setting mechanism, a longitudinal mechanism, a transverse mechanism, a rotating mechanism and a discharging mechanism, wherein the base mechanism is fixedly arranged on the ground and serves as a base and has the functions of shearing a fence and welding the fence, the setting mechanism is fixedly arranged on the base mechanism to realize the function of adjusting the size of the fence, the longitudinal mechanism is fixedly arranged on the base mechanism to realize the function of longitudinal movement, the transverse mechanism is slidably arranged on the longitudinal mechanism to realize the function of horizontal movement, the rotating mechanism is rotatably arranged on the transverse mechanism to realize the functions of rotation and bending, and workpieces are stored together by the discharging mechanism. The adjustable fence has the advantages of adjustable fence size, automatic blanking, automatic bending, automatic welding, automatic piece taking and the like. The manpower is saved, the production labor cost is reduced, and the working efficiency is improved.)

1. An automatic bending and welding device for a fence comprises a base mechanism, a shaping mechanism, a longitudinal mechanism, a transverse mechanism, a rotating mechanism and a discharging mechanism; it is characterized in that the preparation method is characterized in that,

the base mechanism is fixed on the ground, and a feeding structure and a cutting welding gun are arranged on the base mechanism;

the shaping mechanism is fixed on the base mechanism, and a gear and rack transmission structure and a roller are arranged in the shaping mechanism and used for adjusting the size of the fence;

the longitudinal mechanism is connected with a rack arranged on the base mechanism through a sliding block and is used for longitudinally moving;

the transverse mechanism is arranged on the longitudinal mechanism in a sliding mode and used for moving horizontally;

the rotating mechanism is rotationally connected with the transverse mechanism, and the rotating mechanism is matched with the shaping mechanism to bend the pipe fitting;

the upper part of the discharging mechanism is connected with the longitudinal mechanism through a telescopic cylinder, and the lower part of the discharging mechanism clamps a fence.

2. The automatic fence bending and welding device according to claim 1, wherein the base mechanism comprises a support, a bottom plate, a storage rack, a feeding motor, a feeding rotating shaft, a cutting welding gun, a feeding friction wheel, a spot welding gun and an anti-rotation cylinder, the support is fixed on the ground, the upper end of the support is fixedly connected with the bottom plate, side racks are respectively fixed at two ends of the bottom plate, and the side racks are connected with the longitudinal mechanism;

a feeding motor is fixed on the bottom plate, and a feeding motor gear is arranged on an output shaft of the feeding motor;

a feeding rotating shaft arranged side by side is fixed on a bottom plate on the right side of the feeding motor, a rotating shaft gear is sleeved in the middle of the feeding rotating shaft, and the rotating shaft gear on the left side is meshed with the motor gear and the rotating shaft gear on the right side simultaneously;

a feeding friction wheel is fixed at the upper end of the rotating shaft gear, and a feeding pipe fitting is clamped between the feeding friction wheels;

a cutting welding gun is fixed on the bottom plate and is abutted against the side wall of the feeding pipe fitting; the bottom plate is also provided with a spot welding gun and an anti-rotation cylinder, and an anti-rotation pin is fixed at the piston rod end of the anti-rotation cylinder.

3. The automatic fence bending and welding device according to claim 2, wherein the shaping mechanism comprises a shaping motor bracket, a shaping motor, a fixed block, a shaping motor rack, a motor rack block, a shaping cylinder, a longitudinal sliding block and a transverse sliding block, the lower end of the shaping motor bracket is fixed on a front bottom plate of the cutting welding gun, the shaping motor is fixed on the shaping motor bracket, a shaping motor gear is arranged on the shaping motor and is meshed with the motor rack, the motor rack penetrates through the fixed block and is fixedly connected with the motor rack block, the side wall of the motor rack block is connected with one end of the shaping cylinder, the other end of the shaping cylinder is connected with the side wall of the longitudinal sliding block, the end part of the longitudinal sliding block is slidably arranged in the transverse sliding block, and the transverse sliding block is slidably connected with the fixed block through a rotating shaft;

the upper parts of one ends of the fixed block, the motor rack block, the transverse sliding block and the longitudinal sliding block are respectively fixed with shaping wheels, and the four shaping wheels are respectively positioned at four top corners of the rectangle;

the lower parts of the motor rack block, the transverse sliding block and the longitudinal sliding block are respectively provided with a roller.

4. An automatic enclosure bending and welding apparatus as claimed in claim 3, wherein the motor rack block is disposed between the spot welding gun and the anti-rotation pin.

5. The automatic fence bending and welding device according to claim 2, wherein the longitudinal mechanism comprises a transverse plate, a transmission plate, a longitudinal motor, a connecting shaft, a transmission shaft and a driven gear, the transverse plate is provided with a strip hole for the transverse mechanism to slide, and the side wall of the transverse plate is provided with a linear rack;

one end of the transverse plate is fixedly connected with one end of a transmission plate through a vertical plate, the transmission plate is of a C-shaped plate structure, the transmission plate is sleeved on the bottom plate, and the side rack is arranged on the transmission plate in a penetrating manner;

a transmission shaft is arranged on one side of the transmission plate, a driven bevel gear is fixed at each of two ends of the transmission shaft and meshed with the driving bevel gear, and an auxiliary gear is fixed above the driving bevel gear;

the vertical motor is fixed to the riser lower extreme, is provided with vertical motor gear on the vertical motor, and vertical motor gear is left side rack of bottom plate, the left pinion engagement of transmission shaft respectively, and transmission shaft right side pinion and driven gear meshing, driven gear and the side rack meshing on bottom plate right side.

6. The automatic fence bending and welding device according to claim 5, wherein the end surfaces of the transmission plates above the bottom plate are respectively connected with longitudinal pulleys through rotating shafts, and the longitudinal pulleys are in rolling fit with the bottom plate.

7. The automatic fence bending and welding device according to claim 5, wherein the transverse mechanism comprises a rotating shaft, a main gear, a transverse slider, a transverse roller and a transverse motor, the transverse slider is clamped in the elongated hole of the transverse plate, the transverse roller is arranged on the side wall of the transverse slider, and the transverse roller is in rolling fit with the surface of the transverse plate;

a transverse motor is fixed at the upper end of the transverse sliding block, a transverse motor gear is arranged on the transverse motor, and the transverse motor gear is meshed with the linear rack on the transverse plate;

the lower end of the transverse sliding block is fixedly connected with the upper end of a rotating shaft, a main gear is fixed in the rotating shaft, and the lower part of the rotating shaft is rotatably connected with a rotating mechanism.

8. The automatic fence bending and welding device according to claim 7, wherein the rotating mechanism comprises a pinion motor, a pinion motor bracket and a shaping roller, the pinion motor bracket is connected with the rotating shaft, the pinion motor is fixed at the upper end of the pinion motor bracket, a rotating shaft pinion is arranged on the pinion motor, and the rotating shaft pinion is meshed with a main gear in the middle of the rotating shaft; the lower end of the pinion motor bracket is provided with a shaping roller.

9. The automatic fence bending and welding device according to claim 5, wherein the discharging mechanism comprises a discharging bottom plate, a discharging frame, a discharging cylinder, a discharging guide rod, a discharging cover plate and a clamping cylinder, a cylinder body of the discharging cylinder is fixedly connected with the transverse plate, and a piston rod end of the discharging cylinder is connected with the upper end of the discharging frame; the discharging bottom plate is fixed on one side of the discharging frame, the side wall of the discharging bottom plate is connected with the cylinder body of the clamping cylinder, the end of a piston rod of the clamping cylinder is connected with the side wall of the discharging cover plate, the two ends of the discharging cover plate are respectively fixed with a discharging guide rod, and the discharging guide rods penetrate through the discharging frame and abut against the discharging bottom plate.

Technical Field

The invention relates to the technical field of rail bending and welding, in particular to an automatic rail bending and welding device.

Background

At present, the blanking, bending and welding processes of the fence are mostly in manual operation mode, the working efficiency is low, the size is easy to cause the product specification to be non-uniform, and the normal use is influenced. Adopt the machining mode, the unloading, bend, weld and handle for different equipment, the centre needs transport the work piece, has prolonged operating time greatly, reduces work efficiency, has also increased equipment cost simultaneously, leads to manufacturing cost to increase.

Disclosure of Invention

In order to solve the technical problems, the invention provides an automatic bending and welding device for a fence, which has the functions of automatic blanking, automatic bending, automatic welding and automatic workpiece taking, saves labor, reduces cost and improves working efficiency.

In order to realize the technical purpose, the invention adopts the following scheme: the automatic fence bending and welding device comprises a base mechanism, a shaping mechanism, a longitudinal mechanism, a transverse mechanism, a rotating mechanism and a discharging mechanism; the base mechanism is fixed on the ground, and a feeding structure and a cutting welding gun are arranged on the base mechanism; the shaping mechanism is fixed on the base mechanism, and a gear and rack transmission structure and a roller are arranged in the shaping mechanism and used for adjusting the size of the fence; the longitudinal mechanism is connected with a rack arranged on the base mechanism through a sliding block and is used for longitudinally moving; the transverse mechanism is arranged on the longitudinal mechanism in a sliding mode and used for moving horizontally; the rotating mechanism is rotationally connected with the transverse mechanism, and the rotating mechanism is matched with the shaping mechanism to bend the pipe fitting; the upper part of the discharging mechanism is connected with the longitudinal mechanism through a telescopic cylinder, and the lower part of the discharging mechanism clamps a fence.

Compared with the prior art, the invention has the beneficial effects that: the device can automatically perform blanking, automatic bending, automatic welding and automatic workpiece taking, and a plurality of processes are sequentially completed, so that the same size of fence is ensured, the labor is saved, the production cost is reduced, the working effect is improved, and the product quality is improved; meanwhile, the adjustable fence has the function of adjusting the size of the fence, and is suitable for manufacturing fences with multiple sizes.

The preferred scheme of the invention is as follows:

the base mechanism comprises a support, a bottom plate, a storage rack, a feeding motor, a feeding rotating shaft, a cutting welding gun, a feeding friction wheel, a spot welding gun and an anti-rotation air cylinder, wherein the support is fixed on the ground, the upper end of the support is fixedly connected with the bottom plate, two ends of the bottom plate are respectively fixed with a side rack, and the side racks are connected with the longitudinal mechanism; a feeding motor is fixed on the bottom plate, and a feeding motor gear is arranged on an output shaft of the feeding motor; a feeding rotating shaft arranged side by side is fixed on a bottom plate on the right side of the feeding motor, a rotating shaft gear is sleeved in the middle of the feeding rotating shaft, and the rotating shaft gear on the left side is meshed with the motor gear and the rotating shaft gear on the right side simultaneously; a feeding friction wheel is fixed at the upper end of the rotating shaft gear, and a feeding pipe fitting is clamped between the feeding friction wheels; a cutting welding gun is fixed on the bottom plate and is abutted against the side wall of the feeding pipe fitting; the bottom plate is also provided with a spot welding gun and an anti-rotation cylinder, and an anti-rotation pin is fixed at the piston rod end of the anti-rotation cylinder. The fence feeding, shearing and welding functions are realized through the base mechanism.

The shaping mechanism comprises a shaping motor support, a shaping motor, a fixing block, a shaping motor rack, a motor rack block, a shaping cylinder, a longitudinal sliding block and a transverse sliding block, the lower end of the shaping motor support is fixed on a front bottom plate of a cutting welding gun, the shaping motor is fixed on the shaping motor support, a shaping motor gear is arranged on the shaping motor, the shaping motor gear is meshed with the motor rack, the motor rack penetrates through the fixing block and is fixedly connected with the motor rack block, the side wall of the motor rack block is connected with one end of the shaping cylinder, the other end of the shaping cylinder is connected with the side wall of the longitudinal sliding block, the end part of the longitudinal sliding block is slidably arranged in the transverse sliding block in a penetrating manner, and the transverse sliding block is slidably connected with the fixing block through a rotating shaft; the upper parts of one ends of the fixed block, the motor rack block, the transverse sliding block and the longitudinal sliding block are respectively fixed with shaping wheels, and the four shaping wheels are respectively positioned at four top corners of the rectangle; the lower parts of the motor rack block, the transverse sliding block and the longitudinal sliding block are respectively provided with a roller. The function of adjusting the size of the fence is realized through the shaping mechanism.

The motor rack block is arranged between the spot welding gun and the anti-rotation pin.

The longitudinal mechanism comprises a transverse plate, a transmission plate, a longitudinal motor, a connecting shaft, a transmission shaft and a driven gear, the transverse plate is provided with a strip hole for the transverse mechanism to slide, and the side wall of the transverse plate is provided with a linear rack; one end of the transverse plate is fixedly connected with one end of a transmission plate through a vertical plate, the transmission plate is of a C-shaped plate structure, the transmission plate is sleeved on the bottom plate, and the side rack is arranged on the transmission plate in a penetrating manner; a transmission shaft is arranged on one side of the transmission plate, a driven bevel gear is fixed at each of two ends of the transmission shaft and meshed with the driving bevel gear, and an auxiliary gear is fixed above the driving bevel gear; the vertical motor is fixed to the riser lower extreme, is provided with vertical motor gear on the vertical motor, and vertical motor gear is left side rack of bottom plate, the left pinion engagement of transmission shaft respectively, and transmission shaft right side pinion and driven gear meshing, driven gear and the side rack meshing on bottom plate right side. The longitudinal movement of the transverse mechanism and the rotating mechanism is realized through the longitudinal mechanism.

The end faces of the transmission plates above the bottom plate are respectively connected with the longitudinal pulleys through rotating shafts, and the longitudinal pulleys are in rolling fit with the bottom plate.

The transverse mechanism comprises a rotating shaft, a main gear, a transverse sliding block, a transverse roller and a transverse motor, the transverse sliding block is clamped in the long hole of the transverse plate, the transverse roller is arranged on the side wall of the transverse sliding block, and the transverse roller is in rolling fit with the surface of the transverse plate; a transverse motor is fixed at the upper end of the transverse sliding block, a transverse motor gear is arranged on the transverse motor, and the transverse motor gear is meshed with the linear rack on the transverse plate; the lower end of the transverse sliding block is fixedly connected with the upper end of a rotating shaft, a main gear is fixed in the rotating shaft, and the lower part of the rotating shaft is rotatably connected with a rotating mechanism. The transverse movement of the rotating mechanism is realized through a transverse mechanism.

The rotating mechanism comprises a pinion motor, a pinion motor bracket and a shaping roller, the pinion motor bracket is connected with the rotating shaft, the pinion motor is fixed at the upper end of the pinion motor bracket, a rotating shaft pinion is arranged on the pinion motor, and the rotating shaft pinion is meshed with a main gear in the middle of the rotating shaft; the lower end of the pinion motor bracket is provided with a shaping roller. The bending function of the feeding pipe fitting is realized through the rotating mechanism.

The discharging mechanism comprises a discharging bottom plate, a discharging frame, a discharging cylinder, a discharging guide rod, a discharging cover plate and a clamping cylinder, wherein a cylinder body of the discharging cylinder is fixedly connected with the transverse plate, and a piston rod end of the discharging cylinder is connected with the upper end of the discharging frame; the discharging bottom plate is fixed on one side of the discharging frame, the side wall of the discharging bottom plate is connected with the cylinder body of the clamping cylinder, the end of a piston rod of the clamping cylinder is connected with the side wall of the discharging cover plate, the two ends of the discharging cover plate are respectively fixed with a discharging guide rod, and the discharging guide rods penetrate through the discharging frame and abut against the discharging bottom plate. The pens are removed from the apparatus by unloading and stored in unison.

Drawings

Fig. 1 is a schematic perspective view of an automatic fence bending and welding device according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a base mechanism according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a setting mechanism provided in an embodiment of the present invention;

FIG. 4 is a diagram illustrating a use state of a setting mechanism according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a traverse mechanism provided in an embodiment of the present invention;

FIG. 6 is an enlarged view of a portion of FIG. 5 at A1;

FIG. 7 is an enlarged view of a portion of FIG. 5 at A2;

FIG. 8 is a schematic structural diagram of a traverse mechanism provided in an embodiment of the present invention;

fig. 9 is a schematic structural diagram of a rotating mechanism according to an embodiment of the present invention;

fig. 10 is an assembly schematic view of a longitudinal mechanism, a transverse mechanism and a rotating mechanism provided in an embodiment of the present invention;

fig. 11 is a schematic structural diagram of a discharging mechanism provided in an embodiment of the present invention;

fig. 12 is a diagram illustrating a use state of the automatic bending and welding device for a fence according to the embodiment of the present invention;

labeled as: 1. a base mechanism; 11. a support; 12. a base plate; 13. a side rack; 14. a storage rack; 15. a feeding motor; 16. a feeding motor gear; 17. cutting the welding gun; 18. a spindle gear; 19. a feeding rotating shaft; 110. a feeding friction wheel; 111. feeding pipe fittings; 112. a spot welding gun; 113. an anti-rotation cylinder; 114. an anti-rotation pin; 2. a shaping mechanism; 21. shaping a motor bracket; 22. shaping the motor; 23. shaping a motor gear; 24. shaping a motor rack; 25. a fixed block; 26. a motor rack block; 27. a limiting rod; 28. shaping a cylinder; 29. a shaping wheel; 210. a roller; 211. a longitudinal slide block; 212. a tip; 213. a transverse sliding block; 214. shaping the rotating shaft; 215. a first elongated hole; 216. a second elongated hole; 3. a longitudinal mechanism; 31. a transverse plate; 32. a longitudinal motor; 33. a longitudinal motor gear; 34. a pinion gear; 35. a pinion shaft; 36. a drive bevel gear; 37. a driven bevel gear; 38. a drive shaft; 39. a stopper; 310. a drive plate; 311. a driven gear; 312. a driven gear shaft; 313. a notch; 314. a longitudinal pulley; 4. a transverse mechanism; 41. a rotating shaft; 42. a rotating shaft main gear; 43. a transverse slide block; 44. a transverse slider shaft; 45. a transverse roller; 46. a transverse motor bracket; 47. a transverse motor; 48. a transverse motor gear; 5. a rotation mechanism; 51. a rotary shaft pinion; 52. a rotating electric machine; 53. a rotating motor support; 54. shaping the roller; 6. a discharge mechanism; 61. a discharge bottom plate; 62. a discharge pillar; 63. a discharge cylinder; 64. guiding for discharging; 65. a discharge cover plate; 66. a clamping cylinder; 67. a discharge frame; 68. a guide plate.

Detailed Description

The present invention will be described in detail with reference to the following embodiments in order to fully understand the objects, features and effects of the invention, but the present invention is not limited thereto.

Referring to fig. 1, the automatic bending and welding device for a fence provided by the present invention comprises a base mechanism 1, a shaping mechanism 2, a longitudinal mechanism 3, a transverse mechanism 4, a rotating mechanism 5 and a discharging mechanism 6. The base mechanism 1 is fixed on the ground as a base and has the functions of shearing a pipe fitting and welding a fence; the shaping mechanism 2 is fixedly arranged on the base mechanism 1 to realize the function of adjusting the size of the fence; the longitudinal mechanism 3 is fixed on the base mechanism 1 to realize the function of longitudinal movement; the transverse mechanism 4 is arranged on the longitudinal mechanism 3 in a sliding manner to realize the function of horizontal movement; the rotating mechanism 5 is rotatably arranged on the transverse mechanism 4 to realize the functions of rotation and bending, and the discharging mechanism 6 takes down and stores the fence together.

Referring to fig. 2, the base mechanism 1 includes a bracket 11, a bottom plate 12, a side rack 13, a storage rack 14, a feeding motor 15, a feeding friction wheel 110, a spot welding gun 112, an anti-rotation cylinder 113, and an anti-rotation pin 114. The support 11 is fixed subaerial, and support 11 upper end and bottom plate 12 fixed connection, a root side rack 13 is fixed respectively to the left and right sides of bottom plate 12 upper surface, and the tooth of two root side racks 13 all sets up towards the device outside. A feeding motor 15 is fixed on one side edge of the bottom plate 12, an output shaft of the feeding motor 15 is arranged upwards, and a feeding motor gear 16 is arranged on the output shaft. Two feeding rotating shafts 19 are fixed on the right side of the feeding motor 15 side by side, and the feeding motor 15 and the two feeding rotating shafts 19 are located on the same horizontal line. A rotating shaft gear 18 is sleeved in the middle of each feeding rotating shaft 19, a feeding friction wheel 110 is fixed on each rotating shaft gear 18, and the feeding friction wheel 110 is rotatably connected with the feeding rotating shaft 19. The feeding friction wheels 110 are in a concave wheel structure similar to train wheels, and a feeding pipe 111 is clamped between the two feeding friction wheels 110. The left rotating shaft gear 18 is meshed with the feeding motor gear 16 and the right rotating shaft gear 18 simultaneously, the feeding motor 15 is started to drive the feeding motor gear 16 to rotate, the two rotating shaft gears 18 and the feeding friction wheel 110 are further driven to rotate, and the feeding pipe fitting 111 clamped between the feeding friction wheels 110 moves downwards into the device when the feeding friction wheel 110 rotates.

A cutting welding gun 17 is fixed on the front bottom plate 12 of the feeding motor 15, and the head of the cutting welding gun 17 is in contact with the side wall of the feeding pipe 111. The welding spot gun 112 and the anti-rotation cylinder 113 are further fixed on the bottom plate 12, a piston rod of the anti-rotation cylinder 113 is arranged upwards, and an anti-rotation pin 114 is fixed on the piston rod. The anti-rotation cylinder 113 is located on the right side of the spot welding gun 112. A storage rack 14 is fixed on the front bottom surface of the bottom plate 12 and used for storing the processed fence.

Referring to fig. 3 and 4, the shaping mechanism 2 is composed of a shaping motor bracket 21, a shaping motor 22, a shaping motor gear 23, a shaping motor rack 24, a fixed block 25, a motor rack block 26, a limit rod 27, a shaping cylinder 28, a shaping wheel 29, a roller 210, a longitudinal sliding block 211, a head 212 and a transverse sliding block 213. The shaping motor support 21 is fixed on the bottom plate 12 in front of the cutting welding gun 17, the shaping motor 22 is fixed on the shaping motor support 21, an output shaft of the shaping motor 22 is arranged downwards, a shaping motor gear 23 is arranged on the output shaft of the shaping motor 22, the shaping motor gear 23 is meshed with a shaping motor rack 24, and the shaping motor rack 24 penetrates through a fixing block 25 to be fixedly connected with one end of a motor rack block 26. The motor rack block 26 is in a long strip plate structure, the other end of the motor rack block 26 is provided with a rotating shaft, the upper end of the rotating shaft is provided with a self-rotating setting wheel 29, and the lower end of the rotating shaft is provided with a roller 210.

The lower end of the fixed block 25 is fixedly welded on the bottom plate 12, and the upper end of the fixed block 25 is provided with a shaping wheel 29 through a rotating shaft. A cross arm extends from the side of the fixed block 25, and the cross arm is perpendicular to the motor rack block 26. The cross arm is provided with a first through long hole 215, the shaping rotating shaft 214 is inserted into the first long hole 215, and the upper end and the lower end of the shaping rotating shaft 214 are respectively connected with one end of a transverse sliding block 213, so that the shaping rotating shaft 214 slides along the first long hole 215 under the driving of the transverse sliding block 213. A rotatable shaping wheel 29 is also mounted above the shaping rotation shaft 214, and a roller 210 is mounted below the shaping rotation shaft 214. The transverse sliding block 213 is a U-shaped plate structure placed horizontally, the opening end of the U-shaped plate is penetrated with a shaped rotating shaft, and the cross arm is clamped in the opening to form a second long hole structure 216. The plugging end of the U-shaped plate is provided with a horizontal through hole, one end of the longitudinal sliding block 211 passes through the horizontal through hole and is slidably installed in the second long hole 216 of the transverse sliding block 213, and the end part of the longitudinal sliding block 211 is fixed with a head 212 to prevent the longitudinal sliding block 211 from separating from the transverse sliding block 213. The other end of the longitudinal sliding block 211 is provided with a rotating shaft, the upper end of the rotating shaft is provided with a shaping wheel 29, and the lower end of the rotating shaft is provided with a roller 210. Four shaping wheels 29 are located at the four corners of the enclosure rectangle. Preferably, the roller 210 is a universal wheel.

The cylinder body of the shaping cylinder 28 is fixedly connected with the side wall of the motor rack block 26, the piston rod end is fixedly connected with the side wall of the longitudinal sliding block 211, a limiting rod 27 is further fixed on the side wall of the longitudinal sliding block 211, and the other end of the limiting rod 27 penetrates through the motor rack block 26 and is in sliding connection with the motor rack block to play a role in displacement guiding of the longitudinal sliding block 211. The shaping cylinder 28 extends and retracts to drive the longitudinal sliding block 211 to move, so that the transverse sliding block 213 is driven to move along the first elongated hole 215, and the front-back dimension of the fence is adjusted. The shaping motor 22 rotates to drive the shaping motor rack 24 to move, and is driven by the limitation of the shaping cylinder 28 and the limiting rod 27, and the longitudinal sliding block 211 moves along with the motor rack block 26 to adjust the left and right dimensions of the fence.

The spot welding gun 112 is fixed on the right side of the fixed block 25 and in front of the shaping motor rack 24, and the anti-rotation cylinder 113 is fixed on the right side of the spot welding gun 112 and behind the shaping motor rack 24. The initial end of the feeding pipe 111 is bent to the position of the spot welding gun 112, the cutting welding gun 17 cuts the feeding pipe 111, the anti-rotation cylinder 113 extends out, the anti-rotation pin 114 is used for blocking the feeding pipe 111, and then the tail end of the feeding pipe 111 is bent to enable the tail end to be in butt joint with the initial end at the position of the spot welding gun 112.

Referring to fig. 5 to 7, the longitudinal mechanism 3 includes a horizontal plate 31, a vertical plate, a longitudinal motor 32, a longitudinal motor gear 33, a pinion 34, a pinion shaft 35, a driving bevel gear 36, a driven bevel gear 37, a transmission shaft 38, and a transmission plate 310. One end of the transverse plate 31 is fixedly connected with the upper end of the vertical plate, the lower end of the vertical plate is fixedly connected with one end of the transmission plate 310, and the transverse plate 31 is provided with a third strip hole which slides through the transverse mechanism 4 and a guide hole which is used for sliding connection of the discharging mechanism 6. A linear rack is fixed on the front side wall of the transverse plate 31 and is meshed with the gear of the transverse mechanism 4. The transmission plate 310 is a C-shaped plate structure, and the C-shaped plate is clamped on the bottom plate 12 and is connected with the bottom plate 12 in a sliding manner. The side plates on the left and right ends of the C-shaped plate are respectively provided with a notch 313, and a side rack 13 on the bottom plate 12 is arranged in the notch 313 in a penetrating way. The side wall of the upper side plate of the end part is provided with a longitudinal pulley 314 through a rotating shaft, and the longitudinal pulley 314 rolls on the bottom plate 12 to assist the longitudinal mechanism 3 to move on the bottom plate 12.

The front side edge of the transmission plate 310 is provided with a shaft penetrating block, a through hole is formed in the shaft penetrating block, a stop block 39 is fixed to the outer side of the through hole, and the stop block 39 is sleeved on the transmission shaft 38. Two driven bevel gears 37 are respectively fixed at two ends of the transmission shaft 38, the driven bevel gears 37 are meshed with the driving bevel gear 36, the driving bevel gear 36 is fixed at the lower end of the pinion shaft 35, the upper end of the pinion shaft 35 is fixedly connected with the pinion 34, and the two pinion 34 are respectively connected with the side plate on the end part of the transmission plate 310 through rotating shafts.

A longitudinal motor 32 is fixed on the middle lower part of the vertical plate, the output shaft of the longitudinal motor 32 is arranged downwards, and a longitudinal motor gear 33 is arranged on the output shaft. The longitudinal motor gear 33 is simultaneously meshed with the side rack 13 on the left side of the bottom plate 12 and the left side pinion gear 34, the right side pinion gear 34 is meshed with a driven gear 311, and the driven gear 311 is arranged on the upper side plate on the right end of the transmission plate 310 through a driven gear shaft 312. The driven gear 311 is engaged with the side rack 13 on the right side of the bottom plate 12. The longitudinal motor 32 is started to drive the auxiliary gear 34 to rotate, the driven gear 311 is driven to rotate through the left bevel gear, the transmission shaft 38 and the right bevel gear, and the longitudinal mechanism 3 moves on the bottom plate 12 through the side rack 13.

Referring to fig. 8 and 10, the transverse mechanism 4 comprises a transverse slider 43, a transverse slider shaft 44, a transverse roller 45, a rotating shaft 41, a rotating shaft main gear 42, a transverse motor bracket 46, a transverse motor 47 and a transverse motor gear 48, wherein C-shaped grooves are respectively formed on two side surfaces of the transverse slider 43, and a transverse plate 31 of the longitudinal mechanism 3 is clamped in the C-shaped grooves, so that the transverse slider 43 slides in a third long hole of the transverse plate 31. The upper outer side wall and the lower outer side wall of the C-shaped groove are respectively connected with a transverse roller 45 through a transverse slider shaft 44, the wheel surface of the transverse roller 45 is in contact with the upper surface or the lower surface of the transverse plate 31, and the transverse mechanism 4 is assisted to move on the transverse plate 31. The upper end of the transverse sliding block 43 is fixedly connected with a transverse motor bracket 46, the transverse motor bracket 46 is fixedly connected with a transverse motor 47, an output shaft of the transverse motor 47 is arranged downwards, a transverse motor gear 48 is arranged on the output shaft, and the transverse motor gear 48 is meshed with a linear rack on the front side wall of the transverse plate 31 to provide power for moving the transverse mechanism 4. The lower end of the transverse sliding block 43 is fixedly connected with the upper end of the rotating shaft 41, the rotating shaft main gear 42 is fixed in the middle of the rotating shaft 41, the lower end of the rotating shaft 41 is inserted into the rotating mechanism 5, and the limiting plate is fixed on the lower end surface of the rotating shaft 41.

Referring to fig. 9 and 10, the rotating mechanism 5 is composed of a rotating shaft pinion 51, a rotating motor 52, a rotating motor bracket 53, and a shaping roller 54. The rotating motor bracket 53 is provided with a through hole for the rotating shaft 41 to pass through, the rotating motor 52 is fixed on the upper surface of the rotating motor bracket 53, the output shaft of the rotating motor 52 is arranged upwards, a rotating shaft pinion 51 is arranged on the output shaft, and the rotating shaft pinion 51 is meshed with the rotating shaft main gear 42 to enable the rotating mechanism 5 to rotate around the rotating shaft 41. The lower end of the rotating motor bracket 53 is provided with a shaping roller 54 through a rotating shaft, the shaping roller 54 is a concave wheel similar to a train wheel, and a feeding pipe fitting 111 is clamped between the shaping roller 54 and the shaping wheel 29. After the rotating motor 52 is started, the shaping roller 54 is driven to rotate, and the feeding pipe 111 is bent.

Referring to fig. 11, the discharging mechanism 6 is composed of a discharging bottom plate 61, a discharging frame 67, a discharging pillar 62, a discharging cylinder 63, a discharging guide rod 64, a discharging cover plate 65 and a clamping cylinder 66. The cylinder body of the discharging cylinder 63 is fixedly connected with the middle part of the lower surface of the transverse plate 31, the piston rod end of the discharging cylinder 63 is fixedly connected with the middle part of the discharging frame 67, the discharging support posts 62 are further fixed on the discharging frames 67 on the two sides of the discharging cylinder 63, and the upper ends of the discharging support posts 62 are arranged in the guide holes of the transverse plate 31 in a penetrating mode to limit the moving direction of the discharging frame 67. A guide plate 68 for the discharge guide rod 64 to slide back and forth is provided on the lower side of the discharge frame 67, and the guide plate 68 is provided with a through hole.

The front side wall of the discharging frame 67 is fixedly connected with the inner side wall of the discharging bottom plate 61, the inner side wall of the middle part of the discharging bottom plate 61 is fixedly connected with the cylinder body of the clamping cylinder 66, the clamping cylinder 66 is horizontally placed on the discharging frame 67, and the piston rod end of the clamping cylinder 66 is fixedly connected with the inner side wall of the middle part of the discharging cover plate 65. The inner side walls at two ends of the discharging cover plate 65 are respectively fixed with a discharging guide rod 64, and the discharging guide rods 64 penetrate through holes in the guide plates 68 and are abutted against the side walls of the discharging bottom plate 61. During discharging, the fence is positioned above the discharging guide rod 64, and the fence is supported by the discharging guide rod 64.

The working process is as follows: in the initial state, the initial end of the feeding pipe 111 is clamped between the two feeding friction wheels 110, the longitudinal mechanism 3 is positioned at the rear, the transverse mechanism 4 is positioned at the left side, and the rotating mechanism 5 is positioned at the left side of the transverse mechanism 4.

Feeding: the feeding motor 15 is started, and the feeding friction wheel 110 is driven to rotate by the feeding motor gear 16 and the rotating shaft gear 18, so that the feeding pipe 111 moves forwards. When the distance from the position of the cutting welding gun 17 to the initial end of the feeding pipe 111 is the circumference of one fence, the feeding motor 15 stops operating, and feeding is stopped.

Bending: the longitudinal motor 32 is started to drive the longitudinal mechanism 3, the transverse mechanism 4 and the rotating mechanism 5 to move forwards, meanwhile, the transverse motor 47 is started to drive the rotating mechanism 5 to move rightwards, and when the shaping roller 54 is horizontally aligned with the shaping wheel 29 on the fixing block 25 and the shaping roller and the shaping wheel clamp the feeding pipe fitting 111 together, the transverse motor 47 is closed. Only the longitudinal motor 32 is switched on and the shaping roller 54 moves vertically forward along the loading tube 111. When the shaping roller 54 is flush with the left side of the shaping wheel 29 on the shaping rotating shaft 214, the longitudinal motor 32 is turned off, the rotating motor 52 is turned on, and the rotating mechanism 5 rotates clockwise 90 degrees around the rotating shaft 41, so that the feeding pipe 111 is bent for the first time. Then the rotating motor 52 is turned off, the transverse motor 47 is started, and the transverse motor 47 drives the shaping roller 54 to move horizontally and rightwards along the feeding pipe piece 111. When the shaping roller 54 reaches the position of the shaping wheel 29 on the longitudinal slider block 211, the transverse motor 47 is switched off and the rotary motor 52 is activated for the second bend. Then the longitudinal motor 32 is started, the shaping roller 54 moves vertically backwards along the feeding pipe piece 111, and when the shaping roller reaches the position of the shaping wheel 29 on the motor rack block 26, the longitudinal motor 32 is closed, and the rotating motor 52 is started to perform third bending. Then, the transverse motor 47 is started, the shaping roller 54 moves leftwards, when the shaping roller 54 reaches the right position of the anti-rotation cylinder 113, the anti-rotation cylinder 113 drives the anti-rotation pin 114 to extend out, and the end of the pipe fitting is clamped through the anti-rotation pin 114. The cutting torch 17 cuts the feeding pipe 111, and the rotating mechanism 5, the transverse mechanism 4, and the longitudinal mechanism 3 return to the original path of the bending path. When the rotating mechanism 5 reaches the position of the shaping wheel 29 on the fixed block 25, the rotating motor 52 is started to rotate the rotating mechanism 5 anticlockwise for 90 degrees to bend for the fourth time, and at the moment, the two end parts of the feeding pipe fitting 111 are connected and welded by the spot welding gun 112.

Unloading: after the fence is welded, the transverse mechanism 4 and the rotating mechanism 5 move leftwards and are not in contact with the fence any more, the discharging cylinder 63 extends to lower the discharging mechanism 6, the clamping cylinder 66 extends, the discharging cover plate 65 is far away from the discharging bottom plate 61, when the fence enters a space between the guide plate 68 and the discharging bottom plate 61, the clamping cylinder 66 contracts, the discharging guide rod 64 is inserted from the lower part of the fence to abut against the discharging bottom plate 61, and the fence is clamped in the discharging bottom plate, as shown in fig. 12. The shaping cylinder 28 is started to adjust the distance in the front-back direction, and the shaping motor 22 is started to adjust the distance in the left-right direction, so that the whole shaping mechanism 2 is reduced, and the fence is separated from the whole shaping mechanism 2. The discharge cylinder 63 is retracted, the pen is lifted, the longitudinal motor 32 is activated, the longitudinal mechanism 3 carries the pen forward, when the pen is positioned above the storage rack 14, the longitudinal motor 32 is deactivated, and the gripper cylinder 66 is extended to place the pen on the storage rack 14.

Finally, it is noted that: the above-mentioned list is only the preferred embodiment of the present invention, and naturally those skilled in the art can make modifications and variations to the present invention, which should be considered as the protection scope of the present invention provided they are within the scope of the claims of the present invention and their equivalents.