Square tube assembly device

Abstract

The present invention discloses a square tube assembling device, which is used for "L"-shaped splicing of two square tubes, comprising: a support seat, on which a conveying roller is arranged, and a plurality of conveying rollers are arranged at intervals along the length direction of the support seat to form a production conveying line; a feeding mechanism, comprising square tube feeding platforms located on both sides of the support seat, and the square tube feeding platforms on both sides convey the square tubes to the middle support seat; a pre-assembly mechanism, comprising guide components located on both sides of the support seat, the guide components comprising guide wheels located at the conveying ends of the square tube feeding platforms, and the conveying rollers comprising two conical wheels with conical surfaces inclined toward both sides, when the bottom surfaces of the square tubes on both sides are supported by the corresponding guide wheels and the inner sides are in contact with the conical surfaces of the corresponding conical wheels, the square tubes on both sides reach an assembled state; a limiting mechanism, located at the rear of the pre-assembly mechanism, and used for calibrating and maintaining the assembled state of the two square tubes; a welding mechanism, located at the rear of the limiting mechanism, and comprising a welding gun arranged at the joint of the two square tubes in the assembled state.

Description

Technical Field

[0001] The invention relates to the technical field of section steel assembly, in particular to a square tube assembly device. Background Art

[0002] Steel structure is a very important type of structure in modern buildings. It has many advantages such as high strength, light weight, good rigidity, strong toughness, etc. It is widely used. In the face of various construction needs, there are situations where two or even more square tubes need to be spliced, especially when splicing at an angle, such as Figure 8 As shown, the two square tubes are placed diagonally together, and the joint is an intersection line rather than a surface. The instability of the assembly directly increases the difficulty of subsequent welding and affects the quality of the splicing.

[0003] At present, there is no equipment on the market that can realize the assembly of square tubes in the above-mentioned manner. As automated production forms are becoming more and more common, it is hoped that mechanical equipment can automatically complete the entire process from square tube feeding to welding and forming in order to improve production efficiency. However, a series of actions such as square tube feeding, pre-splicing, conveying, and welding require a high degree of mechanical automation. The accuracy of the flow action, the degree of maintenance of the pre-assembly state, the positioning accuracy, etc. will affect the quality of the finished product, increasing the difficulty of research and development. Summary of the invention

[0004] The purpose of the present invention is to provide a square tube assembly device to realize the automated flow of square tube self-loading, pre-splicing, conveying and welding processes, obtain the target splicing shape, improve the assembly efficiency, ensure the splicing quality and meet the needs of automated production.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] A square tube assembly device, used for L-shaped splicing of two square tubes, comprising:

[0007] A support seat, on which a conveying roller is arranged, and a plurality of conveying rollers are arranged at intervals along the length direction of the support seat to form a production conveying line;

[0008] The feeding mechanism comprises square tube feeding platforms located on both sides of the support seat, and the square tube feeding platforms on both sides convey the square tubes to the middle support seat;

[0009] The pre-assembly mechanism includes guide components located on both sides of the support seat, the guide components include guide wheels located at the conveying end of the square tube loading platform, and the conveying roller includes two conical wheels with conical surfaces inclined to both sides. When the bottom surfaces of the square tubes on both sides are supported by the corresponding guide wheels and the inner side surfaces are in contact with the conical surfaces of the corresponding conical wheels, the square tubes on both sides reach an assembly state;

[0010] The limiting mechanism is located behind the pre-assembly mechanism and is used to calibrate and maintain the assembly state of the two square tubes;

[0011] The welding mechanism is located behind the limiting mechanism and comprises a welding gun arranged at the joint of the two square tubes in the assembled state.

[0012] Furthermore, the conveying roller also includes a driving shaft, a driving wheel and a mounting frame. The driving wheel and two conical wheels are respectively assembled on the driving shaft through keys. Both ends of the driving shaft are mounted on the mounting frame through bearings. The mounting frame is fixed on the support seat. Each driving wheel is synchronously driven by a transmission chain.

[0013] Furthermore, a conveying chain that is inclined toward the support seat and conveys the square tubes is provided on the square tube loading platform. Several square tubes are stacked on the conveying chain and driven by the conveying chain to move toward the support seat. Conveying sprockets are provided at both ends of the conveying chain. Multiple conveying chains are arranged side by side on the square tube loading platform, and the conveying sprockets of each conveying chain are driven synchronously.

[0014] Furthermore, a plurality of auxiliary wheels are arranged between the two conveying sprocket wheels, and the conveying chain passes through the auxiliary wheels to form a plurality of transition slopes on the conveying surface, so that the square tubes can be dumped one by one.

[0015] Furthermore, the guide assembly also includes a guide rail and a slide seat. The guide rail is arranged along the inclination of the square tube assembly, and the guide wheel is installed on the slide seat, so that it is driven by the slide seat to move up and down along the guide rail.

[0016] Furthermore, multiple sets of guide wheels, slides and guide rails are provided, a bevel gear is provided on the driving screw of each slide, a transmission connecting rod is provided on both sides of the support seat, and a transmission wheel meshing with each bevel gear is provided on the transmission connecting rod.

[0017] Furthermore, the guide wheel is rotatably connected to the slide seat via a core shaft, a root protrusion of the guide wheel has a limiting edge, and the abutting surface of the limiting edge and the side surface of the square tube and the conical surface of the conical wheel are located in the same plane.

[0018] Furthermore, the limiting mechanism includes a first gantry frame arranged on the support seat, the first gantry frame is provided with a first drive cylinder, the piston rod of the first drive cylinder is connected to a mounting plate, and two clamping rollers arranged in an inverted "V" shape are provided on the mounting plate, and the two clamping rollers are abutted against the outer side surfaces of the corresponding square tubes.

[0019] Furthermore, a second driving cylinder is arranged on the first gantry, and a piston rod of the second driving cylinder is connected to a head-aligning plate, which is located behind the mounting plate. The head-aligning plate is lifted and lowered to align the ends of the two square tubes.

[0020] Furthermore, a second gantry is provided on the support seat and in front of and behind the welding gun, and an inverted "V"-shaped guide roller abutting against the outer side surface of the corresponding square tube is provided on the second gantry.

[0021] In summary, the beneficial effect of the present invention is that, compared with the prior art, the square tube assembly device realizes the integrated fully automatic production of square tubes from loading to welding, subverts the original segmented and discontinuous semi-automatic production mode, avoids many intermediate links, saves a lot of manpower, material resources, energy and site, and greatly reduces the unsafe factors between processes. The square tube conveying, assembly and circulation actions are accurate, which reduces the operating difficulty of the welding process, greatly improves production efficiency and product quality, and meets the needs of automated production. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a top view of a square tube assembly device provided by an embodiment of the present invention;

[0023] Figure 2 is a front view of a square tube assembly device provided by an embodiment of the present invention;

[0024] Figure 3 is a schematic diagram of pre-assembly in a square tube assembly device provided in an embodiment of the present invention;

[0025] Figure 4 yes Figure 3 Enlarged view of point A in the middle;

[0026] Figure 5 yes Figure 2 Schematic diagram of the middle B direction;

[0027] Figure 6 yes Figure 2 Schematic diagram of the middle C direction;

[0028] Figure 7 yes Figure 2 Schematic diagram of the middle D direction;

[0029] Figure 8 It is a schematic diagram of the assembly state of two square tubes. DETAILED DESCRIPTION

[0030] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings.

[0031] See also Figures 1 to 7 As shown, this embodiment provides a square tube assembly device for "L"-shaped splicing of two square tubes. Of course, it can also be an oblique assembly at other angles, and it only needs to adaptively adjust the arrangement angles of each component.

[0032] The device comprises a support seat 1, a feeding mechanism, a pre-assembly mechanism, a limiting mechanism and a welding mechanism.

[0033] The support seat 1 is provided with a conveying roller, and a plurality of conveying rollers are arranged at intervals along the length direction of the support seat 1 to form a production conveying line. The conveying roller includes two conical wheels 2 with conical surfaces inclined to both sides, a driving shaft 3, a driving wheel 4 and a mounting frame 5. The driving wheel 4 and the two conical wheels 2 are respectively assembled on the driving shaft 3 through keys, and both ends of the driving shaft 3 are mounted on the mounting frame 5 through bearings. The mounting frame 5 is fixed on the support seat 1, and each driving wheel 4 is synchronously driven by a transmission chain.

[0034] The feeding mechanism includes a square tube feeding platform 6 located on both sides of the support seat 1, and the square tube feeding platforms 6 on both sides convey the square tube 23 to the middle support seat 1. The square tube feeding platforms 6 are all provided with a conveying chain 7 that tilts toward the support seat 1 and conveys the square tube 23. A plurality of square tubes 23 are stacked on the conveying chain 7 and driven by the conveying chain 7 to move toward the support seat 1. Conveying sprockets 8 are provided at both ends of the conveying chain 7. A plurality of conveying chains 7 are arranged side by side on the square tube feeding platform 6, and the conveying sprockets 8 of each conveying chain 7 are driven synchronously. A plurality of auxiliary wheels 9 are provided between the two conveying sprockets 8. The conveying chain 7 passes through the auxiliary wheels 9 to form a plurality of transition slopes 10 on the conveying surface, so that the square tubes 23 can be tilted one by one to avoid interference between adjacent square tubes 23.

[0035] The pre-assembly mechanism includes a guide assembly 11 located on both sides of the support seat 1, and the guide assembly 11 includes a guide wheel 12 located at the conveying end of the square tube loading platform 6. When the bottom of the square tubes 23 on both sides are supported by the corresponding guide wheel 12 and the inner side is in contact with the conical surface of the corresponding conical wheel 2, the square tubes 23 on both sides reach the assembly state. The guide assembly 11 also includes a guide rail and a slide seat. The guide rail is set along the inclination of the square tube 23 assembly. The guide wheel 12 is installed on the slide seat, so that it is driven by the slide seat to move up and down along the guide rail. Preferably, the guide assembly 11 is driven by a screw nut pair, and multiple sets of guide wheels 12, slide seats, and guide rails are provided. A bevel gear is provided on the driving screw of each slide seat. Transmission connecting rods 13 are respectively provided on both sides of the support seat 1, and a transmission wheel meshing with each bevel gear is provided on the transmission connecting rod 13. The guide wheel 12 is rotatably connected to the slide seat via a core shaft. The root of the guide wheel 12 is protruded with a limiting edge, and the contact surface of the limiting edge and the side surface of the square tube 23 and the conical surface of the conical wheel 2 are located in the same plane.

[0036] The limiting mechanism is located behind the pre-assembly mechanism and is used to calibrate and maintain the assembly state of the two square tubes 23. The limiting mechanism includes a first gantry 14 arranged on the support seat 1, and a first drive cylinder 15 is arranged on the first gantry 14. The piston rod of the first drive cylinder 15 is connected to a mounting plate 16. The mounting plate 16 is provided with two pressing rollers 17 arranged in an inverted "V" shape. The two pressing rollers 17 are in contact with the outer side surfaces of the corresponding square tubes 23. A second drive cylinder 18 is arranged on the first gantry 14, and the piston rod of the second drive cylinder 18 is connected to a head plate 19. The head plate 19 is located behind the mounting plate 16. The head plate 19 is lifted and moved to align the ends of the two square tubes 23 to ensure that the splicing state of the two square tubes 23 is accurate and stable when reaching the subsequent welding position, thereby ensuring the welding quality. In addition, a second gantry 20 is provided on the support seat 1 and in front and behind the welding gun 21. The second gantry 20 is provided with an inverted "V"-shaped guide roller 22 that abuts against the outer side surface of the corresponding square tube 23 to ensure the welding effect.

[0037] The welding mechanism is located behind the limiting mechanism, and includes a welding gun 21 arranged at the joint of two square tubes 23 in the assembled state. The welding gun 21 can be fixed and only needs to be aligned with the joint to complete the welding when the square tubes 23 are transported.

[0038] In summary, the square tube assembly device realizes the integrated fully automatic production of square tubes from loading to welding, subverts the original segmented and discontinuous semi-automatic production mode, avoids many intermediate links, saves a lot of manpower, material resources, energy and space, and greatly reduces the unsafe factors between processes. The square tube transportation, assembly and circulation actions are accurate, which reduces the operation difficulty of the welding process, greatly improves production efficiency and product quality, and meets the needs of automated production.

[0039] The above embodiments are only to illustrate the basic principles and characteristics of the present invention. The present invention is not limited by the above examples. Without departing from the spirit and scope of the present invention, the present invention may be subject to various changes and modifications, which are within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A square tube assembly device, used for "L"-shaped splicing of two square tubes, characterized in that: include A support seat, wherein a conveying roller is arranged on the support seat, and a plurality of the conveying rollers are arranged at intervals along the length direction of the support seat to form a production conveying line; The feeding mechanism comprises square tube feeding platforms located on both sides of the support seat, and the square tube feeding platforms on both sides convey the square tubes to the middle support seat; The pre-assembly mechanism includes guide components located on both sides of the support seat, the guide components include guide wheels located at the conveying end of the square tube loading platform, and the conveying roller includes two conical wheels with conical surfaces inclined to both sides. When the bottom surfaces of the square tubes on both sides are supported by the corresponding guide wheels and the inner side surfaces are in contact with the conical surfaces of the corresponding conical wheels, the square tubes on both sides reach an assembly state; A limiting mechanism, located behind the pre-assembly mechanism, for calibrating and maintaining the assembly state of the two square tubes; and The welding mechanism is located behind the limiting mechanism and comprises a welding gun arranged at the joint of the two square tubes in the assembled state.

2. The square tube assembly device according to claim 1, characterized in that: The conveying roller also includes a driving shaft, a driving wheel and a mounting frame. The driving wheel and two conical wheels are respectively assembled on the driving shaft through keys. Both ends of the driving shaft are mounted on the mounting frame through bearings. The mounting frame is fixed on the support seat. Each driving wheel is synchronously driven by a transmission chain.

3. The square tube assembly device according to claim 1, characterized in that: The square tube loading platform is provided with a conveying chain that is inclined toward the support seat and conveys the square tubes. Several square tubes are stacked on the conveying chain and are driven by the conveying chain to move toward the support seat. Conveying sprockets are provided at both ends of the conveying chain. Multiple conveying chains are arranged side by side on the square tube loading platform, and the conveying sprockets of each conveying chain are driven synchronously.

4. The square tube assembly device according to claim 3, characterized in that: A plurality of auxiliary wheels are arranged between the two conveying sprocket wheels, and the conveying chain passes through the auxiliary wheels to form a plurality of transition slopes on the conveying surface, so that the square tubes can be dumped one by one.

5. The square tube assembly device according to claim 1, characterized in that: The guide assembly also includes a guide rail and a slide seat. The guide rail is arranged along the slope of the square tube assembly. The guide wheel is installed on the slide seat, so that it is driven by the slide seat to move up and down along the guide rail.

6. The square tube assembly device according to claim 5, characterized in that: The guide wheels, slide seats and guide rails are provided in multiple sets, the driving screw of each slide seat is provided with a bevel gear, and transmission connecting rods are respectively provided on both sides of the support seat, and the transmission connecting rods are provided with transmission wheels meshing with each bevel gear.

7. The square tube assembly device according to claim 5, characterized in that: The guide wheel is rotatably connected to the slide seat via a core shaft, a root protrusion of the guide wheel has a limiting edge, and the contact surface between the limiting edge and the side surface of the square tube and the conical surface of the conical wheel are located in the same plane.

8. The square tube assembly device according to claim 1, characterized in that: The limiting mechanism includes a first gantry frame arranged on the support seat, a first driving cylinder is arranged on the first gantry frame, a piston rod of the first driving cylinder is connected to a mounting plate, and two clamping rollers arranged in an inverted "V" shape are arranged on the mounting plate, and the two clamping rollers are in contact with the outer side surfaces of the corresponding square tubes.

9. The square tube assembly device according to claim 8, characterized in that: A second driving cylinder is arranged on the first gantry, and a piston rod of the second driving cylinder is connected to a head-aligning plate, and the head-aligning plate is located behind the mounting plate. The head-aligning plate is lifted and lowered to align the ends of two square tubes.

10. The square tube assembly device according to claim 8, characterized in that: A second gantry is provided on the support seat and in front of and behind the welding gun, and an inverted "V"-shaped guide roller is provided on the second gantry to abut against the outer side surface of the corresponding square tube.

Images