Special unit for assembling rectangular steel box body

Abstract

The utility model discloses a special unit for assembling a square rectangular steel box body, which comprises a rack provided with a base and a door frame; the inner side guide assembly comprises four guide rollers, a first worm gear reverse thread screw, a guide sliding groove beam and a first transmission worm shaft, the inner side guide assembly is arranged at the top of the machine base, and one end of each guide roller is provided with a reverse thread nut; the outer side positioning assembly comprises a side pressing roller, a roller screw rod, a transmission worm gear, a second transmission worm shaft and a first speed reducer; and an inner side positioning assembly. According to the utility model, a mechanical device is used for replacing a manual assembling method of using a tool appliance, and one operator can operate a unit to work, so that on one hand, the number of workers is reduced, the labor intensity is reduced, and the labor cost is reduced; and on the other hand, the assembling speed is increased, so that the operation time is saved, the production efficiency is improved, the unit comprehensive cost is reduced, the assembling quality is stable, the influence of human difference factors is avoided, and the quality reliability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel structure building assembly devices, in particular to a special unit for assembling square and rectangular steel boxes. Background Art

[0002] There is a hollow box component in the steel structure of a house or bridge, which is welded into a rectangular box by four strip steel plates. The traditional production method is to use tooling to assist manual assembly. In today's reality of increasing shortage of physical technicians and rising labor costs, this method has the disadvantages of high labor intensity, low work efficiency and difficulty in ensuring quality consistency; manual assembly requires 2 to 3 skilled technicians, and the forming and positioning of the steel plate is done by manpower using tooling, which is time-consuming and the assembly speed is not fast enough, so the labor cost is high. At the same time, due to the different levels of technicians and the limitations of human factors, the consistency of assembly quality is also difficult to ensure. Utility Model Content

[0003] The utility model provides a special unit for assembling square rectangular steel boxes, which can replace the manual assembling method using tooling tools with a mechanical device. One operator can operate the unit, which, on the one hand, reduces the number of workers and alleviates labor intensity, thereby reducing labor costs; on the other hand, improves the assembling speed, thereby saving operating time, improving production efficiency, reducing unit comprehensive costs, and stabilizing the assembly quality, which is not affected by human differences and improves quality reliability.

[0004] In order to solve the above technical problems, the utility model provides a special unit for assembling a square rectangular steel box, comprising:

[0005] The frame is provided with a base and a door frame;

[0006] An inner guide assembly, comprising a guide roller, a first worm gear reverse thread screw, a guide chute beam and a first transmission worm shaft, wherein the inner guide assembly is arranged on the top of the machine base, four guide rollers are arranged and a reverse thread nut is arranged at one end, and the reverse thread nut matches the first worm gear reverse thread screw;

[0007] An outer positioning assembly, comprising a side pressure roller, a roller screw, a transmission worm wheel, a second transmission worm shaft and a first reducer, wherein the outer positioning assembly is arranged inside the portal frame;

[0008] An inner side positioning assembly, a top pressure positioning mechanism and an end surface positioning assembly, wherein the inner side positioning assembly, the top pressure positioning mechanism and the end surface positioning assembly are used to assemble steel plates into a workpiece with a U-shaped cross section;

[0009] Two tracks are provided and arranged on both sides of the frame. The tracks are provided with track brackets, rollers and a second reducer. The tops of the two tracks are provided with material straightening components and workpiece centering components.

[0010] As a preferred embodiment of the above technical solution, the machine base is set in two and symmetrically arranged, a door frame is provided between the two machine bases, a bottom support roller and an end face positioning assembly are installed between the two machine bases, each of the machine bases is equipped with an inner guide assembly and an outer positioning assembly, and the door frame is equipped with an inner positioning assembly and a top pressure positioning mechanism.

[0011] As a preferred embodiment of the above technical solution, the inner guide assembly also includes a guide support beam and a guide bracket, the guide rollers and the guide brackets are both set to four in number and arranged in two groups, each group of the guide brackets are laterally symmetrical and longitudinally spaced at the top of the machine base, the top end of the guide roller is slidably arranged inside the guide slide beam, the first worm gear reverse screw and the guide slide beam are arranged between the two guide brackets, the first transmission worm shaft and the guide support beam are meshed with the worm wheel of the first worm gear reverse screw, and are assembled between the two guide brackets laterally, and an adjustment handle is provided at one end of the first transmission worm shaft.

[0012] As a preferred embodiment of the above technical solution, the side pressure roller, roller screw and transmission worm wheel are all set to four and set to two groups of positioning parts and the two groups of positioning parts are respectively assembled on the two machine bases, the number of the first reducers is set to two and the output ends are each provided with a second transmission worm shaft, the two first reducers are respectively arranged on the two machine bases, and the second transmission worm shaft is meshed with the transmission worm wheel.

[0013] As a preferred embodiment of the above technical solution, the inner positioning assembly includes a pressure plate slider, an inner pressure roller, a connecting rod assembly, a vertical pressure rod, a guide support and a first hydraulic cylinder. The pressure plate slider and the inner pressure roller are both set in two and the end of the connecting rod assembly is connected to the pressure plate slider, the other ends of the two connecting rod assemblies are symmetrically connected to the vertical pressure rod, the vertical pressure rod is arranged in the guide support, the guide support is arranged at the top of the top pressure positioning mechanism, and the first hydraulic cylinder is arranged at the top of the guide support and the output end is connected to the vertical pressure rod.

[0014] As a preferred embodiment of the above technical solution, the top pressure positioning mechanism includes a pressure wheel plate, a second worm gear reverse screw, a transmission worm, a top pressure carrier, a guide roller, a top pressure rod, a second hydraulic cylinder and a guide slide rail. The number of the pressure wheel plates is set to two and they are respectively arranged on both sides of the second worm gear reverse screw. The second worm gear reverse screw is assembled on the top pressure carrier. The other end of the second worm gear reverse screw is meshed with the transmission worm. An adjustment handle is installed at the other end of the transmission worm. Guide rollers are provided at both ends of the top pressure carrier. A top pressure rod is installed at the top of the center line of the top pressure carrier. The top end of the top pressure rod is connected to the second hydraulic cylinder. The second hydraulic cylinder and the guide slide rail are both arranged on the door frame. The top pressure carrier moves vertically along the guide slide rail through the guide roller.

[0015] As a preferred embodiment of the above technical solution, the end face positioning assembly includes a baffle, a guide plate beam and a cylinder. The guide plate beam is arranged between the two machine bases. The baffle is inserted into the guide groove of the guide plate beam and connected to the output end of the cylinder. The cylinder is arranged on the top of the guide plate beam.

[0016] As a preferred embodiment of the above technical solution, the two tracks are respectively set as input tracks and output tracks, the rollers are set on the track brackets, the number of the rollers is set to be multiple and a sprocket is set at one end through a chain, and the output end of the second reducer is transmission connected to the sprocket.

[0017] As a preferred embodiment of the above technical solution, the material straightening assembly includes a support roller support, a support roller plate, a third worm gear reverse screw, a first guide groove beam, a second transmission worm shaft, a first worm shaft support beam, a first transmission gear and a third reducer. The third worm gear reverse screw, the first guide groove beam and two support roller supports and support roller plates are arranged as a side support device. The two support roller supports and support roller plates are respectively arranged on both sides of the third worm gear reverse screw and are matched and connected with the third worm gear reverse screw. The bottom end of the support roller support is slidably arranged inside the first guide groove beam to realize linear sliding. The third The worm gear reverse screw and the first guide groove beam are assembled on the track bracket of the track, the second transmission worm shaft is meshed with the worm wheel of the third worm gear reverse screw, and is installed on the top of the track bracket through the first worm shaft support beam, and a plurality of side support devices are provided, each of which is connected to the second transmission worm shaft through the third worm gear reverse screw inside it, and the other end of the second transmission worm shaft is connected to the output end of the third reducer through the first transmission gear, and the support roller plate is connected to the support roller support through a pin shaft so as to be able to rotate and tilt outward relative to the support roller support.

[0018] As a preferred embodiment of the above technical solution, the workpiece centering component includes a side support roller support, a side support roller, a fourth worm gear reverse screw, a second guide beam groove, a third transmission worm shaft, a second worm shaft support beam, a second transmission gear and a fourth reducer. One of the side support rollers, the fourth worm gear reverse screw and two of the side support roller supports are configured as a group of limiting devices. A roller is matched and installed on the outer side of the side support roller. The two side support rollers are respectively arranged on both sides of the side support rollers and connected to the side support rollers. The bottom end of the side support roller support is slidingly arranged It is placed inside the second guide beam groove to achieve linear sliding, the fourth worm gear reverse screw and the second guide beam groove are assembled on the track bracket of the track, the third transmission worm shaft is meshed with the worm wheel of the fourth worm gear reverse screw, and is installed on the top of the track bracket through the second worm shaft support beam, and a plurality of limit devices are provided, each of which is connected to the third transmission worm shaft through the fourth worm gear reverse screw inside it, and the other end of the third transmission worm shaft is connected to the output end of the fourth reducer through the second transmission gear.

[0019] The utility model provides a special machine unit for assembling a square rectangular steel box body, which comprises an inner side guide component, an outer side positioning component, an inner side positioning component, a top pressure positioning mechanism and an end face positioning component, a material straightening mechanism and a workpiece centering component. According to the width of the web of the box body to be assembled, the position state of the material straightening mechanism is set at a position where the spacing between symmetrical roller supports is approximately equal to . times the web width, each group of roller supports is symmetrically adjusted outwardly to an inclination and locked, and the inclination degree is slightly increased from the front end to the rear end of the input roller table, a web is first hoisted onto the input track, and then two wing plates are hoisted onto the two sides of the web in sequence, standing and leaning against the column side rollers; the material straightening mechanism is started The positive assembly is used to center the web longitudinally, and the outer positioning assembly is started to make the symmetrical spacing of the outer sides of each group of side pressure rollers equal to the outer contour width of the box body. The adjusting handle of the inner guide assembly is turned to make the outer side spacing of each group of guide rollers slightly equal to the spacing of the inner sides of the two wing plates of the assembled box body. The position of the pressure wheel plate of the top pressure positioning mechanism is set above the outer contour height of the box body, and the adjusting handle is turned to make the spacing of the center planes of the two pressure wheel plates equal to the spacing of the center planes of the thickness of the two wing plates. The input roller is started to transport the three steel plates to the assembly station, and the baffle of the end face positioning assembly is raised to the set height. When the wing plate moves forward, it is constrained to a vertical state by the guide roller and the side pressure roller, and the front end faces of the three steel plates touch the When it reaches the end face positioning baffle, it stops and aligns the front ends of the three steel plates; the second hydraulic cylinder of the top pressure positioning mechanism is started to lower the pressure wheel disc on the top pressure carrier and press the top edge of the wing plate; when the symmetrical two pressure plate sliders and the side pressure rollers on the connecting rod assembly press the wing plate and then stop, the three steel plates form a U-shaped cross-section under the joint constraints of the guide rollers, side pressure rollers, pressure wheel discs and inner pressure rollers; then a steel lining with a length equal to the inner spacing of the two wing plates of the U-shaped part is manually placed at the predetermined position at the front end of the workpiece and welded and fixed, and the joints of the web and the wing plate are spot welded and fixed; after the three steel plates are assembled into a U-shaped cross-section, the front input roller 8 and the material are assembled The straightening component 9 straightens and conveys the three steel plates. After assembly, the output roller 8 and the workpiece centering component 10 receive the assembled U-shaped part. After the fourth steel plate is covered on it, the output roller 8 runs in the reverse direction to return the workpiece, and the cover is sealed in place by the top pressure positioning mechanism 6 to form a box body. The whole process replaces the manual assembly method using tooling with mechanical devices. One operator can operate the unit. On the one hand, the number of workers is reduced, the labor intensity is alleviated, and the labor cost is reduced; on the other hand, the assembly speed is increased, thereby saving working time, improving production efficiency, reducing unit comprehensive cost, and the assembly quality is stable, which is not affected by human differences, and the quality reliability is improved.

[0020] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is an overall longitudinal side view of the utility model;

[0022] Figure 2 It is an overall top view of the utility model;

[0023] Figure 3 It is a side sectional view of the frame of the utility model;

[0024] Figure 4 This is a top sectional view of the frame of the utility model;

[0025] Figure 5 This is a front cross-sectional view of the frame of the utility model;

[0026] Figure 6 This is a schematic diagram of the structure of the top pressure positioning mechanism of the utility model;

[0027] Figure 7 It is a side view of the track and material straightening structure of the utility model;

[0028] Figure 8 This is a schematic diagram of the structure of the material straightening mechanism of the utility model;

[0029] Fig. 9 This is a schematic diagram of the workpiece centering component structure of the utility model;

[0030] Fig.10 This is an exploded view of a rectangular steel box that needs to be assembled according to the utility model;

[0031] Fig.11 This is a schematic diagram of the square rectangular steel box structure that needs to be assembled according to the utility model.

[0032] In the figure: 1 frame, 11 base, 12 door frame, 2 bottom roller, 3 inner guide assembly, 31 guide roller, 32 first worm gear reverse screw, 33 guide slide beam, 34 first transmission worm shaft, 35 guide support beam, 36 guide bracket, 4 outer positioning assembly, 41 side pressure roller, 42 roller screw, 43 transmission worm, 44 second transmission worm shaft, 45 first reducer, 5 inner positioning assembly, 51 pressure plate slider, 52 inner pressure roller, 53 connecting rod assembly, 54 vertical pressure rod, 55 guide support, 56 first hydraulic cylinder, 6 top pressure positioning mechanism, 61 pressure wheel plate, 62 second worm gear reverse screw, 63 transmission worm, 64 top pressure carrier, 65 guide roller, 66 top pressure rod, 67 second hydraulic oil Cylinder, 68 guide slide rail, 7 end face positioning assembly, 71 baffle, 72 guide plate beam, 73 cylinder, 8 track, 81 track bracket, 82 roller, 83 second reducer, 9 material straightening assembly, 91 support roller support, 911 support roller plate, 92 third worm gear reverse screw, 93 first guide groove beam, 94 third transmission worm shaft, 95 first worm shaft support beam, 96 first transmission gear, 97 third reducer, 10 workpiece centering assembly, 101 side support roller support, 102 side support roller, 103 fourth worm gear reverse screw, 104 second guide beam groove, 106 second worm shaft support beam, 107 second transmission gear, 108 fourth reducer, 20 bottom web, 30 upper web, 40 wing plate, 50 steel lining. DETAILED DESCRIPTION

[0033] In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0034] Embodiment 1:

[0035] See also Figure 1-9 The embodiment of the utility model provides a special unit for assembling a square rectangular steel box, including:

[0036] A frame 1 is provided with a base 11 and a door frame 12;

[0037] The inner guide assembly 3 includes a guide roller 31, a first worm gear reverse screw 32, a guide chute beam 33 and a first transmission worm shaft 34. The inner guide assembly 3 is arranged on the top of the machine base 11. Four guide rollers 31 are provided and a reverse nut is provided at one end. The reverse nut matches the first worm gear reverse screw 32.

[0038] The outer positioning assembly 4 includes a side pressure roller 41, a roller screw 42, a transmission worm wheel 43, a second transmission worm shaft 44 and a first reducer 45. The outer positioning assembly 4 is arranged inside the door frame 12;

[0039] The inner side positioning assembly 5, the top pressure positioning mechanism 6 and the end surface positioning assembly 7 are used to assemble the steel plates into a workpiece with a U-shaped cross section;

[0040] There are two rails 8 disposed on both sides of the frame 1 . The rails 8 are provided with a rail bracket 81 , a roller 82 , and a second reducer 83 . The tops of the two rails 8 are provided with a material straightening component 9 and a workpiece centering component 10 .

[0041] The present embodiment provides a special unit for assembling a square rectangular steel box, which comprises an inner guide assembly 3, an outer positioning assembly 4, an inner positioning assembly 5, a top pressure positioning mechanism 6 and an end surface positioning assembly 7, a material straightening mechanism 9 and a workpiece centering assembly 10. According to the web width of the box to be assembled, the position state of the material straightening mechanism 9 is set at a position where the spacing between the symmetrical support roller supports 91 is approximately equal to 1.5 times the web width, and each group of support roller supports 91 is symmetrically adjusted outward by an inclination and locked. The inclination degree increases slightly from the front end to the rear end of the input roller table 8. A web is first hoisted onto the input track 8, and then two wing plates are hoisted onto both sides of the web in sequence, standing upright and leaning against the column side rollers; the material is started. The straightening assembly 9 is used to center the web longitudinally, and the outer positioning assembly 4 is started to make the symmetrical spacing of the outer sides of each group of side pressure rollers 41 equal to the outer contour width of the box body. The adjusting handle of the inner guide assembly 3 is turned to make the outer side spacing of each group of guide rollers 31 slightly equal to the spacing of the inner sides of the two wing plates of the assembled box body. The position of the pressure wheel plate 61 of the top pressure positioning mechanism 6 is set above the outer contour height of the box body, and the adjusting handle is turned to make the spacing of the center planes of the two pressure wheel plates 61 equal to the spacing of the center planes of the thickness of the two wing plates. The input roller 8 is started to transport the three steel plates to the assembly station, and at the same time, the baffle 71 of the end face positioning assembly 7 is raised to the set height; when the wing plate moves forward, it is constrained to a vertical state by the guide roller 31 and the side pressure roller 41, and the three When the front end face of the steel plate hits the end face positioning baffle 71, it stops and the front end faces of the three steel plates are aligned; the second hydraulic cylinder 67 of the top pressure positioning mechanism 6 is started to make the pressure wheel plate 61 on the top pressure carrier descend and press the top edge of the wing plate; when the symmetrical two pressure plate sliders 51 and the side pressure rollers 41 on the connecting rod assembly 53 press the wing plate and then stop, the three steel plates form a U-shaped cross-section under the joint constraints of the guide rollers 31, the side pressure rollers 41, the pressure wheel plate 61 and the inner pressure rollers 52; then a steel lining with a length equal to the inner spacing of the two wing plates of the U-shaped part is manually placed at the predetermined position at the front end of the workpiece and they are welded and fixed, and the joints of the web and the wing plate are spot welded and fixed; after the three steel plates are assembled into a U-shaped cross section After the surface is finished, the input roller 8 and the material straightening component 9 straighten and convey the three steel plates before assembly. After the assembly, the output roller 8 and the workpiece centering component 10 receive the assembled U-shaped parts. After the fourth steel plate is covered on it, the output roller 8 runs in the opposite direction to return the workpiece, and the cover is sealed in place through the top pressure positioning mechanism 6 to form a box. The whole process replaces the manual assembly method of using tooling with mechanical devices. One operator can operate the unit. On the one hand, the number of workers is reduced, the labor intensity is reduced, and the labor cost is reduced; on the other hand, the assembly speed is increased, thereby saving working time, improving production efficiency, reducing unit comprehensive cost, and the assembly quality is stable, which is not affected by human differences, and the quality reliability is improved.

[0042] In a further feasible embodiment of the present invention, two machine bases 11 are provided and are symmetrically arranged, a gantry 12 is provided between the two machine bases 11, a bottom support roller 2 and an end face positioning assembly 7 are installed between the two machine bases 11, an inner guide assembly 3 and an outer positioning assembly 4 are installed on each machine base 11, and an inner positioning assembly 5 and a top pressure positioning mechanism 6 are installed on the gantry 12.

[0043] The two cavity-shaped machine bases 11 in the frame 1 in this embodiment are symmetrically spaced apart, two structural connectors and three sets of bottom supporting rollers 2 with sprockets at one end are installed and connected between them to form a connected base, and the door frame 12 is installed on the two machine bases 11 to form a stable overall supporting structure. The sprockets at one end of the bottom supporting rollers 2 are connected to the second reducer 83 through a chain, and they can rotate synchronously in the same direction as the rollers 82 with sprockets in the input roller table 8.

[0044] In a further feasible embodiment of the present embodiment, the inner guide assembly 3 further includes a guide support beam 35 and a guide bracket 36, the number of guide rollers 31 and guide brackets 36 are both set to four and arranged in two groups, each group of guide brackets 36 is laterally symmetrical and longitudinally spaced at the top of the machine base 11, the top end of the guide roller 31 is slidably arranged inside the guide slide beam 33, the first worm gear reverse screw 32 and the guide slide beam 33 are arranged between the two guide brackets 36, the first transmission worm shaft 34 and the guide support beam 35 are meshed with the worm wheel of the first worm gear reverse screw 32, and are assembled between the two laterally guide brackets 36, and an adjustment handle is provided at one end of the first transmission worm shaft 34.

[0045] The four guide brackets 36, four guide rollers 31, two first worm gear reverse screws 32, and two guide chute beams 33 in the inner guide assembly 3 in this embodiment are divided into two groups. The two guide rollers 31 in each group are symmetrically assembled with a first worm gear reverse screw 32. The tops of the two guide rollers 31 are matched and connected with a guide chute beam 33. They are installed together between the two guide brackets 36, and the two groups of assemblies are installed on the two machine bases 11 with longitudinal intervals; the first transmission worm shaft 34 with two worms is meshed and connected with the corresponding worm wheels on the two first worm gear reverse screws 32, and is installed between the two machine bases 11 through their own guide support beams 35. An adjustment handle is installed at one end of the first transmission worm shaft 34. The handle is rotated clockwise or counterclockwise to rotate the first transmission worm shaft 34 accordingly to rotate the worm gear reverse screw 32, so that the guide rollers 31 on both sides of the vertical center plane of the unit move inward or outward symmetrically laterally to adapt to steel boxes with different cross-sectional specifications.

[0046] In a further feasible embodiment of the present embodiment, the side pressure roller 41, the roller screw 42 and the transmission worm gear 43 are each provided with four and two sets of positioning parts, and the two sets of positioning parts are respectively assembled on two machine bases 11; the number of the first reducers 45 is set to two and the output ends are provided with a second transmission worm shaft 44; the two first reducers 45 are respectively provided on two machine bases 11, and the second transmission worm shaft 44 is meshed with the transmission worm gear 43.

[0047] The four sets of side pressure rollers 41, four roller screws 42 and four transmission worm gears 43 in the outer positioning assembly 4 in this embodiment are divided into two groups, which are symmetrically installed on two machine bases 11 respectively. The transmission worm gear 43 of each group is connected to the first reducer 45 through the second transmission worm shaft 44. At the same time, the first reducer 45 is started to rotate forward and reversely to drive the second transmission worm shaft 44 and the transmission worm gear 43 to rotate accordingly, so that each group of side pressure rollers 41 moves laterally symmetrically inward or outward relative to the vertical center plane of the frame 1 to adapt to steel boxes with different cross-sectional specifications.

[0048] In a further feasible embodiment of the present embodiment, the inner positioning assembly 5 includes a pressure plate slider 51, an inner pressure roller 52, a connecting rod assembly 53, a vertical pressure rod 54, a guide support 55 and a first hydraulic cylinder 56. The pressure plate slider 51 and the inner pressure roller 52 are both provided in two and the end of the connecting rod assembly 53 is connected to the pressure plate slider 51. The other ends of the two connecting rod assemblies 53 are symmetrically connected to the vertical pressure rod 54. The vertical pressure rod 54 is provided in the guide support 55. The guide support 55 is provided at the top of the top pressure positioning mechanism 6. The first hydraulic cylinder 56 is provided at the top of the guide support 55 and the output end is connected to the vertical pressure rod 54.

[0049] The two sets of connecting rod assemblies 53 in the inner positioning assembly 5 in this embodiment are symmetrically installed on both sides of the lower part of the vertical pressure rod 54. The lower end of the vertical rod of each set of connecting rod assemblies 53 is equipped with an inner pressure roller 52 and a pressure plate slider 51. The upper part of the vertical pressure rod 54 located on the vertical center plane of the machine base 11 is provided with an axial convex key, which is matched with the key groove in the guide support member 55 installed on the top pressure carrier 64 of the top pressure positioning mechanism 6, and the top end is connected to the first hydraulic cylinder 56; the first hydraulic cylinder 56 drives the vertical pressure rod 54 to rise and fall vertically, and the pressure plate slider 51 and the inner pressure roller 5 are separated from or pressed against the three steel plates through the up and down vertical movement of the connecting rod assembly 53.

[0050] In a further implementable embodiment of the present embodiment, the top pressure positioning mechanism 6 includes a pressure wheel plate 61, a second worm gear reverse screw 62, a transmission worm 63, a top pressure carrier 64, a guide roller 65, a top pressure rod 66, a second hydraulic cylinder 67 and a guide slide 68. The number of pressure wheel plates 61 is set to two and they are respectively arranged on both sides of the second worm gear reverse screw 62. The second worm gear reverse screw 62 is assembled on the top pressure carrier 64. The other end of the second worm gear reverse screw 62 is meshed with the transmission worm 63. An adjustment handle is installed on the other end of the transmission worm 63. Guide rollers 65 are provided at both ends of the top pressure carrier 64. A top pressure rod 66 is installed at the top of the center line of the top pressure carrier 64. The top end of the top pressure rod 66 is connected to the second hydraulic cylinder 67. The second hydraulic cylinder 67 and the guide slide 68 are both arranged on the door frame 12. The top pressure carrier 64 moves vertically along the guide slide 68 through the guide roller 65.

[0051] On the top pressure carrier 54 in the top pressure positioning mechanism 6 of this embodiment, a second worm gear reverse screw 62 is installed horizontally and centrally, and two pressure wheel plates 61 with reverse nut in the center are symmetrically assembled on both sides of the worm wheel of the second worm gear reverse screw 62; a transmission worm 63 vertically meshing with the worm wheel of the second worm gear reverse screw 62 is assembled on the top pressure carrier 64, and an adjustment handle is installed at one end of the transmission worm 63; two guide rollers 65 are respectively assembled at the lateral ends of the top pressure carrier 64 relative to the vertical center plane of the frame 1, which can be respectively mounted along the two columns of the door frame 12. The guide slide rail 68 on it moves vertically; the lower end of the top pressure rod 66 is connected to the top surface of the top pressure carrier 64, and the upper end is connected to the second hydraulic cylinder 67. The second hydraulic cylinder 67 is centrally installed on the upper crossbeam of the door frame 12. The adjustment handle is rotated clockwise or counterclockwise to drive the transmission worm shaft 63 to rotate and the second worm gear reverse screw 62 to rotate, so that the pressure wheel plates 61 on both sides of the vertical center plane of the unit are symmetrically moved inward or outward axially to adapt to steel boxes with different cross-sectional specifications; the second hydraulic cylinder 67 is lifted and lowered vertically so that the two pressure wheel plates 61 respectively press the two vertical wing plates to position them.

[0052] In a further feasible embodiment of the present embodiment, the end face positioning assembly 7 includes a baffle 71, a guide plate beam 72 and a cylinder 73. The guide plate beam 72 is arranged between two machine bases 11. The baffle 71 is inserted into the guide groove of the guide plate beam 72 and connected to the output end of the cylinder 73. The cylinder 73 is arranged at the top of the guide plate beam 72.

[0053] The end face positioning assembly in this embodiment is installed at the front end of the frame 1, the guide beam 72 is installed between the two machine bases 11, the baffle 71 is inserted into the slot of the guide beam 72 and connected to the cylinder 73 at its midpoint, the cylinder 73 is assembled on the guide beam 72, and the up and down movement of the piston of the cylinder 73 drives the baffle 71 to rise and fall along the slot of the guide beam 72, so that the end face of the baffle 71 is aligned and positioned when the strips are assembled.

[0054] In a further implementable embodiment of this embodiment, the two tracks 8 are respectively set as input tracks and output tracks, the rollers 82 are set on the track bracket 81, the number of rollers 82 is set to be multiple and a sprocket is set at one end through a chain, and the output end of the second reducer 83 is connected to the sprocket transmission.

[0055] The rollers 82 on the roller conveyor 8 in this embodiment are connected to the bottom supporting roller 2 and the motor reducer 83 via chains, so that they can run synchronously in the same direction. The rollers 82 on the output roller conveyor of the roller conveyor 8 are connected to the motor reducer 83 via chains, so that they can run synchronously in the same direction.

[0056] In a further embodiment of the present embodiment, the material straightening assembly 9 includes a roller support 91, a roller plate 911, a third worm gear reverse screw 92, a first guide slot beam 93, a third transmission worm shaft 94, a first worm shaft support beam 95, a first transmission gear 96 and a third reducer 97. A third worm gear reverse screw 92, a first guide slot beam 93 and two roller supports 91 and a roller plate 911 are configured as a side support device. The two roller supports 91 and the roller plate 911 are respectively disposed on both sides of the third worm gear reverse screw 92 and are matched and connected with the third worm gear reverse screw 92. The bottom end of the roller support 91 is slidably disposed on the first guide slot beam 93. To achieve linear sliding inside, the third worm gear reverse screw 92 and the first guide groove beam 93 are assembled on the track bracket 81 of the track 8, the third transmission worm shaft 94 is meshed with the worm wheel of the third worm gear reverse screw 92, and is installed on the top of the track bracket 81 through the first worm shaft support beam 95, and a plurality of side support devices are provided, each of which is connected to the third transmission worm shaft 94 through the third worm gear reverse screw 92 inside it, and the other end of the third transmission worm shaft 94 is connected to the output end of the third reducer 97 through the first transmission gear 96, and the support roller plate 911 is connected to the support roller support 91 through a pin shaft so that it can rotate and tilt outward relative to the support roller support 91.

[0057] The material straightening assembly 9 in this embodiment is installed on the roller table 8. A third worm gear reverse thread screw 93 and a first guide groove beam 93, two roller supports 91 and a roller plate 911 symmetrically assembled relative to the vertical center plane of the frame 1 form a set of side support devices, which are assembled and installed on the track bracket 81; multiple sets of side support devices are arranged and distributed longitudinally along the input roller table 8, and each set of side support devices is connected to each third transmission worm shaft 94 connected as a whole through the worm wheel of its third worm gear reverse thread screw 93, and one end of the third transmission worm shaft 94 is connected through A pair of first transmission gears 96 are connected to the third reducer 97. The forward and reverse rotation of the third reducer 97 drives the third transmission worm shaft 94 and the worm wheel of the third worm wheel counter-thread screw 92 to rotate accordingly, so that the two supporting roller supports 91 and the supporting roller plate 911 in each group of side supporting devices are synchronously and symmetrically moved inward or outward relative to the vertical center plane of the machine frame 1, thereby centering the side support of the strip placed on the input roller table 8, and tilting the supporting roller plate 911 outward at an angle relative to the supporting roller support 91, so that the upright strip can be tilted outward to avoid tipping inward.

[0058] In a further implementable embodiment of the present embodiment, the workpiece centering assembly 10 includes a side support roller support 101, a side support roller 102, a fourth worm gear reverse screw 103, a second guide beam groove 104, a third transmission worm shaft 94, a second worm shaft support beam 106, a second transmission gear 107 and a fourth reducer 108. A side support roller 102, a fourth worm gear reverse screw 103 and two side support roller supports 101 are configured as a group of limiting devices. A roller is matched and installed on the outer side of the side support roller 101. The two side support roller supports 101 are respectively arranged on both sides of the side support roller 102 and are connected to the side support roller 102. The bottom end of the rotary roller support 101 is slidably arranged inside the second guide beam groove 104 to realize linear sliding. The fourth worm gear reverse screw 103 and the second guide beam groove 104 are assembled on the track bracket 81 of the track 8. The third transmission worm shaft 94 is meshed with the worm wheel of the fourth worm gear reverse screw 103, and is installed on the top of the track bracket 81 through the second worm shaft support beam 106. There are multiple limit devices, each of which is connected to the third transmission worm shaft 94 through the fourth worm gear reverse screw 103 inside it, and the other end of the third transmission worm shaft 94 is connected to the output end of the fourth reducer 108 through the second transmission gear 107.

[0059] The workpiece centering mechanism 10 in this embodiment is installed on the output roller 8, a fourth worm gear reverse screw 103 and a second guide beam groove 104, two side support roller supports 101 and side support rollers 102 symmetrically assembled relative to the vertical center plane of the frame 1 form a set of limiting devices, which are assembled and installed on the track bracket 81; multiple sets of limiting devices are arranged and distributed longitudinally along the output roller 8, and each set of limiting devices is connected to each third transmission worm shaft through the worm wheel of its fourth worm gear reverse screw 103 94, one end of the third transmission worm shaft 94 is connected to the fourth reducer 108 through a pair of second transmission gears 107, and the forward and reverse operation of the fourth reducer 108 drives the third transmission worm shaft 94 and the worm wheel of the fourth worm wheel counter-thread screw 103 to rotate accordingly, so that the two side support roller supports 101 and the side support rollers 101 in each group of limiting devices are synchronously and symmetrically moved inward or outward relative to the vertical center plane of the frame 1, so that the U-shaped workpiece transported to the output roller table 8 remains in a centered state.

[0060] Embodiment 2:

[0061] Based on the first embodiment, refer to the attached Fig.10 and Fig.11 ;

[0062] The rectangular steel box to be installed includes a plurality of steel strips, the plurality of strips include a bottom web 20, an upper web 30, a wing plate 40 and a steel lining 50, and the wing plate 40 and the steel lining 50 are arranged between the bottom web 20 and the upper web 30;

[0063] The steel strips placed on the roller 8 are centered and straightened by the material straightening assembly 9 and then transported to the assembly station at the frame 1. The inner guide assembly 3, the outer positioning assembly 4, the inner positioning assembly 5, the top pressure positioning mechanism 6, and the end face positioning assembly 7 work in coordination to make a flat web 20 and two symmetrical upright wing plates 30 be assembled into a workpiece with a U-shaped cross-section. After the joints of the steel strips are manually spot-welded and fixed with three steel linings 50 at intervals at the upper predetermined position to fix the shape, the input roller 8 transports the workpiece to the output roller 8. After the upper web 30 is manually covered to the upper position of the U-shaped part, the output roller 8 reverses and transports the workpiece back to the assembly station. The cover plate is sealed in place and spot-welded in sections by the top pressure positioning mechanism 6, thereby forming a stable box.

[0064] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples, unless they are contradictory.

[0065] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0066] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A special unit for assembling a square rectangular steel box, characterized in that: include: A frame (1) is provided with a base (11) and a door frame (12); An inner guide assembly (3) comprises a guide roller (31), a first worm gear reverse thread screw (32), a guide chute beam (33) and a first transmission worm shaft (34), wherein the inner guide assembly (3) is arranged on the top of the machine base (11), the guide rollers (31) are arranged in four numbers and a reverse thread nut is arranged at one end, and the reverse thread nut matches the first worm gear reverse thread screw (32); An outer positioning assembly (4), comprising a side pressure roller (41), a roller screw (42), a transmission worm wheel (43), a second transmission worm shaft (44) and a first reducer (45), wherein the outer positioning assembly (4) is arranged inside the door frame (12); An inner side positioning assembly (5), a top pressure positioning mechanism (6) and an end surface positioning assembly (7), wherein the inner side positioning assembly (5), the top pressure positioning mechanism (6) and the end surface positioning assembly (7) are used to assemble steel plates into a workpiece with a U-shaped cross section; Two rails (8) are provided and arranged on both sides of the frame (1); the rails (8) are provided with a rail bracket (81), a roller (82) and a second reducer (83); and the tops of the two rails (8) are provided with a material straightening assembly (9) and a workpiece centering assembly (10).

2. A special unit for assembling a rectangular steel box according to claim 1, characterized in that: The machine bases (11) are arranged in two and symmetrically, a door frame (12) is arranged between the two machine bases (11), a bottom support roller (2) and an end surface positioning assembly (7) are arranged between the two machine bases (11), each of the machine bases (11) is equipped with an inner side guide assembly (3) and an outer side positioning assembly (4), and the door frame (12) is equipped with an inner side positioning assembly (5) and a top pressure positioning mechanism (6).

3. A special unit for assembling a rectangular steel box according to claim 1, characterized in that: The inner guide assembly (3) further comprises a guide support beam (35) and a guide bracket (36). The guide rollers (31) and the guide brackets (36) are both arranged in four numbers and in two groups. Each group of the guide brackets (36) is arranged transversely symmetrically and longitudinally spaced at the top of the machine base (11). The top end of the guide roller (31) is slidably arranged inside the guide slide beam (33). The first worm gear reverse screw (32) and the guide slide beam (33) are arranged between the two guide brackets (36). The first transmission worm shaft (34) and the guide support beam (35) are meshed with the worm wheel of the first worm gear reverse screw (32) and are assembled between the two transverse guide brackets (36). An adjustment handle is arranged at one end of the first transmission worm shaft (34).

4. A special unit for assembling a rectangular steel box according to claim 1, characterized in that: The side pressure roller (41), the roller screw (42) and the transmission worm wheel (43) are all arranged in four and arranged in two groups of positioning parts, and the two groups of positioning parts are respectively assembled on the two machine bases (11); the number of the first reducers (45) is arranged in two and the output ends are each provided with a second transmission worm shaft (44); the two first reducers (45) are respectively arranged on the two machine bases (11); and the second transmission worm shaft (44) is meshed with the transmission worm wheel (43).

5. A special unit for assembling a rectangular steel box according to claim 1, characterized in that: The inner positioning assembly (5) comprises a pressure plate slider (51), an inner pressure roller (52), a connecting rod assembly (53), a vertical pressure rod (54), a guide support (55) and a first hydraulic cylinder (56); the pressure plate slider (51) and the inner pressure roller (52) are both provided in two pieces and the end of the connecting rod assembly (53) is connected to the pressure plate slider (51); the other ends of the two connecting rod assemblies (53) are symmetrically connected to the vertical pressure rod (54); the vertical pressure rod (54) is provided in the guide support (55); the guide support (55) is provided at the top of the top pressure positioning mechanism (6); the first hydraulic cylinder (56) is provided at the top of the guide support (55) and the output end is connected to the vertical pressure rod (54).

6. A special unit for assembling rectangular steel boxes according to claim 1, characterized in that: The pressing and positioning mechanism (6) comprises a pressure wheel plate (61), a second worm gear reverse screw (62), a transmission worm (63), a pressing carrier (64), a guide roller (65), a pressing rod (66), a second hydraulic cylinder (67) and a guide rail (68); the pressure wheel plate (61) is provided in two numbers and is respectively provided on both sides of the second worm gear reverse screw (62); the second worm gear reverse screw (62) is mounted on the pressing carrier (64); the other end of the second worm gear reverse screw (62) is connected to the transmission worm (63) is engaged, an adjustment handle is installed at the other end of the transmission worm (63), guide rollers (65) are arranged at both ends of the top pressure carrier (64), a top pressure rod (66) is installed at the top of the center line of the top pressure carrier (64), the top end of the top pressure rod (66) is connected to the second hydraulic cylinder (67), the second hydraulic cylinder (67) and the guide slide rail (68) are both arranged on the door frame (12), and the top pressure carrier (64) moves vertically along the guide slide rail (68) through the guide rollers (65).

7. A special unit for assembling a rectangular steel box according to claim 1, characterized in that: The end surface positioning assembly (7) comprises a baffle (71), a guide plate beam (72) and a cylinder (73); the guide plate beam (72) is arranged between the two machine bases (11); the baffle (71) is inserted into the guide groove of the guide plate beam (72) and connected to the output end of the cylinder (73); and the cylinder (73) is arranged on the top of the guide plate beam (72).

8. A special machine set for assembling rectangular steel boxes according to claim 1, characterized in that: The two tracks (8) are respectively arranged as an input track and an output track, the roller (82) is arranged on the track bracket (81), the number of the rollers (82) is arranged to be multiple and a sprocket is arranged at one end through a chain, and the output end of the second reducer (83) is transmission-connected to the sprocket.

9. A special unit for assembling rectangular steel boxes according to claim 1, characterized in that: The material straightening assembly (9) comprises a supporting roller support (91), a supporting roller plate (911), a third worm gear reverse screw (92), a first guide groove beam (93), a third transmission worm shaft (94), a first worm shaft support beam (95), a first transmission gear (96) and a third reducer (97); one of the third worm gear reverse screw (92), the first guide groove beam (93) and two of the supporting roller supports (91) and the supporting roller plate (911) are arranged as a side supporting device; the two supporting roller supports (91) and the supporting roller plate (911) are respectively arranged on both sides of the third worm gear reverse screw (92) and matched with the third worm gear reverse screw (92); the bottom end of the supporting roller support (91) is slidably arranged inside the first guide groove beam (93) to achieve linear sliding; The three-worm gear reverse-tooth screw (92) and the first guide groove beam (93) are assembled on the track bracket (81) of the track (8); the third transmission worm shaft (94) is meshed with the worm wheel of the third worm gear reverse-tooth screw (92) and is installed on the top of the track bracket (81) through the first worm shaft support beam (95); a plurality of side support devices are provided, each of which is connected to the third transmission worm shaft (94) through the third worm gear reverse-tooth screw (92) inside the side support device; the other end of the third transmission worm shaft (94) is connected to the output end of the third reducer (97) through the first transmission gear (96); the support roller plate (911) is connected to the support roller support (91) through a pin shaft so as to be able to rotate and tilt outward relative to the support roller support (91).

10. A special machine set for assembling rectangular steel boxes according to claim 1, characterized in that: The workpiece centering assembly (10) comprises a side support roller support (101), a side support roller (102), a fourth worm gear reverse screw (103), a second guide beam groove (104), a third transmission worm shaft (94), a second worm shaft support beam (106), a second transmission gear (107) and a fourth reducer (108); one side support roller (102), the fourth worm gear reverse screw (103) and two side support roller supports (101) are arranged as a set of limiting devices; a roller is matched and installed on the outer side of the side support roller support (101); the two side support roller supports (101) are respectively arranged on both sides of the side support roller (102) and connected to the side support roller (102); the bottom of the side support roller support (101) The end slide is arranged inside the second guide beam groove (104) to realize linear sliding, the fourth worm gear reverse screw (103) and the second guide beam groove (104) are assembled on the track bracket (81) of the track (8), the third transmission worm shaft (94) is meshed with the worm wheel of the fourth worm gear reverse screw (103), and is installed on the top of the track bracket (81) through the second worm shaft support beam (106), and a plurality of limit devices are provided, each of which is connected to the third transmission worm shaft (94) through the fourth worm gear reverse screw (103) inside the limit device, and the other end of the third transmission worm shaft (94) is connected to the output end of the fourth reducer (108) through the second transmission gear (107).

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