CN110465563A - A kind of steel construction part bending auxiliary device and its application method - Google Patents

Abstract

The invention relates to a bending auxiliary device for steel structure parts and its use method. It includes a base and a pressure head mechanism. A roller shaft system is arranged on the base. The roller shaft system includes fixed rollers and moving rollers; a moving slide rail is installed at the bottom of the supporting frame of the moving rollers , the moving slide rail controls the movement of the moving roller through the hydraulic push-pull system to realize the adjustable roller spacing. The pressure head mechanism is set on the base, between the fixed roller and the moving roller, including the pressure head base frame and the bottom of the pressure head base frame. Pressure head; exerts vertical force on steel structural parts supported on fixed and moving rollers. The steel structure part of the present invention cooperates with the roller shaft and the pressure head to complete the bending work of various non-planar steel structure parts in the steel structure manufacturing process; the structure is simple, the size is small, the mobility is large, and the space requirement is low, and it can be applied to narrow construction On-site; the production is simple, it can be self-made with local materials, or it can be customized in batches in the factory; the distance between the rollers can be flexibly adjusted according to the construction needs to meet the diverse needs of steel structure parts.

Description

Bending auxiliary device for steel structure parts and using method thereof

technical field

The invention relates to the technical field of steel knot bending, in particular to a bending auxiliary device for steel structure parts and a use method thereof.

Background technique

In the field of steel structure, bending steel structure parts are widely distributed in various variable-section steel columns, variable-section steel beams and special-shaped components.

The traditional bending methods of steel structure parts include heating bending method and fixed mold cold bending method. The efficiency of heating and bending is low, the energy consumption is large, and it is easy to produce toxic and harmful exhaust gas, which has a great impact on the workshop environment, and has a lot of adverse effects on the performance of the base material after high temperature heating; , it is easy to scratch the base material during the bending process, and the stress generated in the process is relatively large, which is easy to cause the rebound of the material, and there is a certain safety risk.

In addition, the distance between the support rollers of the existing bending equipment is fixed, and the flexibility is poor, and the applicability is not good for some steel structure parts with special size requirements. Therefore, it is necessary to provide a bending device for steel structure parts that is convenient, efficient, safe and widely used.

Contents of the invention

The object of the present invention is to provide a bending auxiliary device for steel structure parts and its use method. Through the cooperation of the roller shaft and the pressure head, the bending work of various non-planar steel structure parts in the steel structure production process is completed, and the existing heating and pressing problems are solved. Low bending efficiency, high energy consumption, toxic and harmful exhaust gas, and more adverse effects on the properties of the base metal, as well as the fixed parts of the device used in the cold bending method of the fixed mold, are easy to scratch the base metal during the bending process, The stress generated in the process is relatively large, which is easy to cause the rebound of the material, and there are safety risks.

In order to realize the above-mentioned technical purpose, the present invention adopts following technical scheme:

A bending auxiliary device for steel structure parts, characterized in that: it includes a base and a pressure head mechanism; the base is set on a support surface, and includes a base and a roller system on the base; the roller system includes Fixed rollers and moving rollers arranged in parallel on the base;

The fixed roller includes a first roller shaft and a first support frame, the first support frame includes two support plates oppositely arranged, the bottom of the support plate is fixed on the base, and the top is provided with a reserved hole. A bearing is provided in the reserved hole, and the two ends of the first roller shaft are rotatably connected to the first support frame through the bearing;

The moving roller includes a second roller shaft, a second support frame, a moving slide rail and a hydraulic push-pull system. There are two moving slide rails, which are arranged in parallel on the base, and their extension direction is in line with the axis of the second roller shaft. Vertical; the second support frame also includes two opposite support plates, the support plates are correspondingly arranged on the mobile slide rail, the bottom of which is provided with a female groove adapted to the mobile slide rail, and the top is provided with a reserved A bearing is provided in the reserved hole, and the two ends of the second roller shaft are connected to the second support frame through bearing rotation; the hydraulic push-pull system is connected to the second support frame to control its movement and fixation;

The indenter mechanism is arranged on the base, between the fixed roller and the moving roller, and includes an indenter base frame and an indenter installed at the bottom of the indenter base frame; the indenter base frame is connected with a press; the indenter base The head is set vertically to exert vertical force on the steel structure parts supported on the fixed roller and the moving roller.

Wherein, the hydraulic push-pull system includes a hydraulic cylinder, a hydraulic cylinder controller and an oil pump; there are two groups of the hydraulic cylinders, corresponding to the side of the two support plates of the second support frame away from the first support frame, and the expansion and contraction of the hydraulic cylinder The rod is fixedly connected with the support plate, and the tail is fixed on the base through the hydraulic cylinder base connector; the hydraulic cylinder controller and the oil pump are arranged outside the base, and the oil pump is respectively connected to the two hydraulic cylinders through oil pipes. The hydraulic cylinder controller is connected with the oil pump through a signal cable.

Further, the support plates of the first support frame, the second support frame and the hydraulic cylinder base connector are all steel triangular plates, the top of the hydraulic cylinder base connector is hinged to the tail of the hydraulic cylinder, and the bottom end is welded and fixed on the pedestal.

Further, the first support frame, the second support frame, the moving slide rail, the hydraulic cylinder and the hydraulic cylinder base connector on the same side of the base are located on the same vertical plane.

Further, the base frame of the indenter is T-shaped, including a horizontal fixing plate at the top and a vertical connecting plate at the bottom, and the bottom of the vertical connecting plate is provided with grooves at intervals; the indenting head is a vertical plate, Protrusions are arranged at intervals on the top, and the protrusions are mated with the tongue and groove and then fixedly connected through the bolts provided through the side.

Further, the indenter is a wide indenter, a medium-wide indenter or a narrow indenter; the wide indenter is formed by widening the bottom of the medium-wide indenter, with a width ranging from 30mm to 60mm, and the narrow indenter is formed by The bottom of the medium and wide indenter is formed by symmetrical cutting, and the width ranges from 10mm to 30mm.

Further, the bottom end of the pressure head is a round head.

Further, the dimensions and specifications of the first roller shaft and the second roller shaft are the same, and the plane where the two axes are located is parallel to the base.

Further, the outer surfaces of the first roller shaft and the second roller shaft are provided with wedge-shaped grooves along the length direction, and wedge-shaped anti-skid rubber strips are arranged in the wedge-shaped grooves. The anti-skid rubber strips can prevent steel structural parts from slipping and surface scratches. .

In addition, the present invention also provides a method for using the above-mentioned bending auxiliary device for steel structure parts, including the following steps:

Step 1. The steel structure parts are in place: place the steel structure parts to be bent on the two rollers and under the pressure head mechanism, which is installed on the pressure rod of the press;

Step 2. Determine the required distance between the two rollers: determine the required distance between the two rollers according to the size and bending requirements of the steel structure parts;

Step 3: Start the hydraulic push-pull system, and drive the moving roller to slide along the moving slide rail through the expansion and contraction of the telescopic rod of the hydraulic cylinder until the distance from the fixed roller reaches the width required by the angle;

Step 3, the pressure head mechanism is in place: move the pressure head mechanism so that it is located in the middle position directly above the moving roller and the fixed roller;

Step 5. Start the press: start the press, and the press drives the pressure head to exert pressure on the steel structure parts, so that it produces plastic bending deformation under the constraint of the roller shaft. During the whole process, the first roller shaft and the second roller shaft There is no relative sliding between steel structure parts;

Step 6. Close the press, put away the pressure rod of the press, and take out the bent steel structure parts;

Step 7. Repeat steps 1 to 6 until all steel structure parts are bent.

Compared with prior art, the technical advantage of the present invention is:

1. The steel structure parts of the present invention cooperate with the roller shaft and the pressure head to complete the bending work of various non-planar steel structure parts in the steel structure manufacturing process, effectively solving the problem of low heating and bending efficiency, high energy consumption, and production Toxic and harmful exhaust gas, many adverse effects on the properties of the base metal, and the fixed parts of the device used in the cold bending method of the fixed mold are fixed, and the base material is easy to be scratched during the bending process, and the stress generated during the process is large, which is easy to cause The rebound of materials and the existence of safety risks;

2. The bending auxiliary device is simple in structure, ingenious in design, small in size, large in mobility, and low in space requirements, and can be applied to narrow construction sites; it is easy to make, can be made by local materials, or can be customized in batches at the factory;

3. Set the fixed roller and the moving roller. The fixed roller is used as the fixed end to provide the reaction force when the steel structure parts are bent. The reaction force can flexibly adjust the distance between the rollers according to the construction needs to meet the diverse needs of steel structure parts;

4. Rubber strips are embedded on the roller shaft, which can effectively increase the friction between the parts and the roller shaft to prevent the parts from slipping; it can also provide a certain buffer to reduce the force between the parts and the roller shaft and avoid scratches on the base material;

5. The hydraulic device is used to control the distance between the rollers, which reduces the labor intensity and improves the operation accuracy.

Description of drawings

The above and/or other aspects and advantages of the present invention will become clearer and easier to understand through the detailed description made in conjunction with the following drawings, which are only schematic and do not limit the present invention, wherein:

Fig. 1 is a schematic diagram of the overall structure of the bending auxiliary device for steel structure parts involved in the present invention.

Fig. 2 is a schematic structural view of the base involved in the present invention;

Fig. 3 is the cooperation schematic diagram of roller shaft and support frame;

Fig. 4 is the assembly schematic diagram of the second support frame and the moving slide rail;

Fig. 5 is a schematic view of the surface structure of the first roll or the second roll;

Fig. 6 is a structural schematic diagram of the pressure head mechanism involved in the present invention;

Fig. 7 is the front view of Fig. 6;

Fig. 8 is a schematic diagram of the three-dimensional structure of the wide indenter involved in the present invention;

Fig. 9 is the front view of Fig. 8;

Fig. 10 is a schematic diagram of the three-dimensional structure of the medium-width indenter involved in the present invention;

Fig. 11 is the front view of Fig. 10;

Fig. 12 is a schematic diagram of the three-dimensional structure of the narrow indenter involved in the present invention;

Fig. 13 is the front view of Fig. 12;

Reference signs: 1-base, 2-fixed roller, 2.1-first roller shaft, 2.2-first supporting frame, 3-moving roller, 3.1-second roller shaft, 3.2-second supporting frame, 3.3-moving Slide rail, 3.4-hydraulic push-pull system, 3.41-hydraulic cylinder, 3.42-hydraulic cylinder controller, 3.43-oil pump, 3.44-hydraulic cylinder base connector, 3.45-oil pipe, 3.46-signal cable, 4-bearing, 5- Indenter base frame, 6-indenter, 6.1-wide indenter, 6.2-medium-wide indenter, 6.3-narrow indenter, 7-bolt, 8-steel structure parts, 9-anti-skid rubber strip.

Detailed ways

Hereinafter, embodiments of the bending assisting device for steel structural parts and the method of use thereof of the present invention will be described with reference to the accompanying drawings.

The examples described here are specific specific implementations of the present invention, and are used to illustrate the concept of the present invention. They are all explanatory and exemplary, and should not be construed as limiting the implementation of the present invention and the scope of the present invention. In addition to the embodiments described here, those skilled in the art can also adopt other obvious technical solutions based on the claims of the application and the contents disclosed in the description, and these technical solutions include adopting any obvious changes made to the embodiments described here. Replacement and modified technical solutions.

The accompanying drawings in this specification are schematic diagrams, which assist in explaining the concept of the present invention, and schematically represent the shapes of various parts and their interrelationships. Please note that in order to clearly show the structures of the components in the embodiments of the present invention, the drawings are not drawn in the same scale. The same reference numerals are used to designate the same parts.

The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention. As shown in Figure 1, a bending auxiliary device for steel structure parts is characterized in that it includes a base and a pressure head mechanism; as in Figure 2, the base is set on the supporting surface, including a base 1 and a roller on the base 1 Shaft system; the roller shaft system includes a fixed roller 2 and a moving roller 3 arranged in parallel on the base 1 .

The fixed roller 2 serves as a fixed end to provide the reaction force of the steel structure part 8 during bending, including the first roller shaft 2.1 and the first support frame 2.2. The first support frame 2.2 includes two opposite support plates, and the bottom of the support plate is fixed On the base 1, a reserved hole is set on the top, and a bearing 4 is arranged in the reserved hole, as shown in Figure 3, the two ends of the first roller shaft 2.1 are connected to the first support frame 2.2 through the bearing 4; the bearing 4 can Reduce the resistance and ensure the free rotation of the roller shaft.

The moving roller 3 includes a second roller shaft 3.1, a second support frame 3.2, a moving slide rail 3.3 and a hydraulic push-pull system 3.4. There are two moving slide rails 3.3, which are arranged on the base 1 in parallel, and its extension direction is the same as that of the second roller. The axis of the shaft 3.1 is vertical; the second support frame 3.2 also includes two support plates oppositely arranged, and the support plates are correspondingly arranged on the moving slide rail 3.3, as shown in Fig. The female groove, the female groove and the moving slide rail can provide the reaction force on the other side when the steel structure parts are bent. There is a reserved hole on the top of the support plate, and the bearing 4 is arranged in the reserved hole, and the two ends of the second roller shaft 3.1 pass through The bearing 4 is rotatably connected to the second support frame 3.2; the hydraulic push-pull system 3.4 is connected to the second support frame 3.2 to control its movement and fixation.

The hydraulic push-pull system 3.4 includes a hydraulic cylinder 3.41, a hydraulic cylinder controller 3.42 and an oil pump 3.43; there are two groups of hydraulic cylinders 3.41, corresponding to the two support plates on the second support frame 3.2 away from the side of the first support frame 2.2, and the hydraulic cylinder 3.41 The telescopic rod is fixedly connected with the support plate, and the tail is fixed on the base 1 through the hydraulic cylinder base connector 3.44; the hydraulic cylinder controller 3.42 and the oil pump 3.43 are arranged outside the base 1, and the oil pump 3.43 is respectively connected to the two hydraulic cylinders 3.41 It is connected through the oil pipe 3.45, and the hydraulic cylinder controller 3.42 is connected with the oil pump 3.43 through the signal cable 3.46. Through the hydraulic cylinder controller, the hydraulic cylinder can be controlled to expand and contract, push and pull the slidable roller support frame to advance or retreat on the guide rail of the roller support frame, so as to change the distance between the two sets of roller support frames, and adapt to the bending angle of different steel structure parts The need for spacing.

As shown in Figure 5, the outer surfaces of the first roller shaft 2.1 and the second roller shaft 3.1 are provided with wedge-shaped grooves along the length direction, and wedge-shaped anti-slip rubber strips 9 are arranged in the wedge-shaped grooves. The dimensions and specifications of the first roller shaft 2.1 and the second roller shaft 3.1 are the same, and the planes where the axes of the two shafts are located are parallel to the base 1 .

As shown in Figure 6, the pressure head mechanism is located on the base, between the fixed roller 2 and the moving roller 3, including the pressure head base frame 5 and the pressure head 6 installed at the bottom of the pressure head base frame 5; machine connection; the pressure head 6 is set vertically, and applies a vertical force to the steel structure parts 8 supported on the fixed roller 2 and the moving roller 3 . The indenter base frame 5 is T-shaped, including a horizontal fixing plate 5.1 at the top and a vertical connecting plate 5.2 at the bottom, and the bottom of the vertical connecting plate 5.2 is provided with grooves 5.3 at intervals; the indenter 6 is a vertical plate, and its top is spaced Set the protrusion 6.4, as shown in Figure 7, after the protrusion 6.4 is mated with the groove 5.3, it is fixedly connected by the bolt 7 provided through the side. The indenter base frame and the pin hole on the side of the indenter are used to connect the indenter to the indenter base frame. The indenter 6 is a wide indenter 6.1, a medium-wide indenter 6.2 or a narrow indenter 6.3; as shown in Figure 8 and Figure 9, the wide indenter 6.1 is formed by widening the bottom of the medium-wide indenter 6.2, and the width ranges from 30mm to 60mm. As shown in Figure 10 and Figure 11, it is a schematic structural diagram of the medium-wide indenter 6.2, as shown in Figure 12 and Figure 13, the narrow indenter 6.3 is formed by symmetrically cutting the bottom of the medium-wide indenter 6.2, and the width ranges from 10mm to 30mm. The bottom end of the pressure head 6 is a round head.

In addition, the first support frame 2.2, the second support frame 3.2, the moving slide rail 3.3, the hydraulic cylinder 3.41 and the hydraulic cylinder base connecting piece 3.44 on the same side of the base 1 are located on the same vertical plane. The support plates of the first support frame 2.2, the second support frame 3.2 and the hydraulic cylinder base connector 3.44 are all steel triangular plates, the top of the hydraulic cylinder base connector 3.44 is hinged with the tail of the hydraulic cylinder 3.41, and the bottom end is welded and fixed on the Seat 1.

When the above-mentioned bending auxiliary device for steel structure parts is used, it includes the following steps:

Step 1, the steel structure part 8 is in place: place the steel structure part 8 to be bent on the two rollers and under the pressure head mechanism, which is installed on the pressure bar of the press;

Step 2. Determine the required distance between the two rollers: determine the required distance between the two rollers according to the size and bending requirements of the steel structure part 8;

Step 3: Start the hydraulic push-pull system 3.4, and the telescopic rod of the hydraulic cylinder 3.41 drives the moving roller 3 to slide along the moving slide rail 3.3 until the distance from the fixed roller 2 reaches the width required by the angle, after which the hydraulic cylinder controller remains open , the output pressure remains constant;

Step 3: Put the pressure head mechanism in place: move the pressure head mechanism so that it is located in the middle position directly above the moving roller 3 and the fixed roller 2;

Step 5. Start the press: start the press, and the press drives the pressure head to exert pressure on the steel structure part 8, so that it produces plastic bending deformation under the constraint of the roller shaft. During the whole process, the first roller shaft 2.1 and the second roller shaft 2.1 There is no relative sliding between the roller shaft 3.1 and the steel structure part 8;

Step 6, close the press, put away the pressure bar of the press, and take out the bent steel structure part 8;

Step 7. Repeat steps 1 to 6 until all steel structure parts 8 are bent.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection of the present invention. within range.

Claims (10)

1. A bending auxiliary device for steel structure parts, characterized in that: it includes a base and a pressure head mechanism; The base is set on the supporting surface, including the base (1) and the roller shaft system set on the base (1); The roller shaft system includes a fixed roller (2) and a moving roller (3) arranged in parallel on the base (1); The fixed roller (2) includes a first roller shaft (2.1) and a first support frame (2.2), and the first support frame (2.2) includes two support plates oppositely arranged, and the bottom of the support plate is fixed on On the base (1), a reserved hole is provided on the top, and a bearing (4) is provided in the reserved hole, and the two ends of the first roller shaft (2.1) are rotatably connected to the first support frame ( 2.2) on; The moving roller (3) includes a second roller shaft (3.1), a second support frame (3.2), a moving slide rail (3.3) and a hydraulic push-pull system (3.4), and the moving slide rail (3.3) has two, It is arranged in parallel on the base (1), and its extension direction is perpendicular to the axis of the second roller shaft (3.1); the second support frame (3.2) also includes two opposite support plates, and the support plates correspond to It is arranged on the moving slide rail (3.3), the bottom of which is provided with a female groove adapted to the moving slide rail (3.3), and the top is provided with a reserved hole, and a bearing (4) is arranged in the reserved hole, and the first Both ends of the two roller shafts (3.1) are rotationally connected to the second support frame (3.2) through bearings (4); the hydraulic push-pull system (3.4) is connected to the second support frame (3.2) to control its movement and fixation; The pressure head mechanism is set on the base, between the fixed roller (2) and the moving roller (3), including the pressure head base frame (5) and the pressure head (6) installed at the bottom of the pressure head base frame (5) ; The indenter base frame (5) is connected to the press; the indenter (6) is vertically arranged to support the steel structure parts (8) on the fixed roller (2) and the moving roller (3) Apply a vertical force. 2. A bending auxiliary device for steel structure parts according to claim 1, characterized in that: the hydraulic push-pull system (3.4) includes a hydraulic cylinder (3.41), a hydraulic cylinder controller (3.42) and an oil pump (3.43) ; There are two groups of hydraulic cylinders (3.41), corresponding to the side of the second support frame (3.2) away from the first support frame (2.2), and the expansion rod of the hydraulic cylinder (3.41) is fixed to the support plate , the tail is fixed on the base (1) through the hydraulic cylinder base connector (3.44); the hydraulic cylinder controller (3.42) and the oil pump (3.43) are located outside the base (1), and the oil pump (3.43 ) are respectively connected to the two hydraulic cylinders (3.41) through oil pipes (3.45), and the hydraulic cylinder controller (3.42) is connected to the oil pump (3.43) through signal cables (3.46). 3. A bending auxiliary device for steel structure parts according to claim 2, characterized in that: the first support frame (2.2), the second support frame (3.2) and the hydraulic cylinder base connector (3.44) The support plates are all steel triangular plates, the top of the hydraulic cylinder base connector (3.44) is hinged with the tail of the hydraulic cylinder (3.41), and the bottom end is welded and fixed on the base (1). 4. A bending auxiliary device for steel structure parts according to claim 2, characterized in that: the first support frame (2.2), the second support frame (3.2) and the mobile Slide rail (3.3), hydraulic cylinder (3.41) and hydraulic cylinder base connector (3.44) are located on the same vertical plane. 5. A bending auxiliary device for steel structure parts according to claim 1, characterized in that: the indenter base (5) is T-shaped, including a horizontal fixing plate (5.1) on the top and a vertical fixing plate (5.1) on the bottom. The connecting plate (5.2), the bottom of the vertical connecting plate (5.2) is provided with tongue and groove (5.3); After the protrusion (6.4) and the tongue and groove (5.3) are mated and plugged together, they are fixedly connected by the bolt (7) provided through the side. 6. A bending auxiliary device for steel structure parts according to claim 1, characterized in that: the indenter (6) is a wide indenter (6.1), a medium-wide indenter (6.2) or a narrow indenter ( 6.3); the wide indenter (6.1) is formed by widening the bottom of the medium-wide indenter (6.2), with a width ranging from 30mm to 60mm, and the narrow indenter (6.3) is formed by the bottom of the medium-wide indenter (6.2) Formed by symmetrical cutting, the width range is 10mm~30mm. 7. The bending auxiliary device for steel structure parts according to claim 1, characterized in that: the bottom end of the indenter (6) is a round head. 8. A bending auxiliary device for steel structure parts according to claim 1, characterized in that: the dimensions and specifications of the first roller shaft (2.1) and the second roller shaft (3.1) are the same, and the axes of the two are located The plane is parallel to the base (1). 9. A bending auxiliary device for steel structure parts according to claim 1, characterized in that: the outer surfaces of the first roller shaft (2.1) and the second roller shaft (3.1) are provided with wedge-shaped grooves along the length direction , a wedge-shaped non-slip rubber strip (9) is set in the wedge-shaped groove. 10. The method for using a bending auxiliary device for steel structure parts according to any one of claims 1-9, characterized in that it comprises the following steps: Step 1. The steel structure part (8) is in place: place the steel structure part (8) to be bent on the two rollers and under the pressure head mechanism, which is installed on the pressure rod of the press; Step 2. Determine the required distance between the two rollers: determine the required distance between the two rollers according to the size and bending requirements of the steel structure part (8); Step 3: Start the hydraulic push-pull system (3.4), drive the moving roller (3) to slide along the moving slide rail (3.3) through the expansion and contraction of the hydraulic cylinder (3.41) until the distance from the fixed roller (2) reaches the required angle At this time, the hydraulic cylinder controller remains open, and the output pressure maintains a fixed value; Step 3: Put the pressure head mechanism in place: move the pressure head mechanism so that it is located in the middle position directly above the moving roller (3) and the fixed roller (2); Step 5. Start the press: start the press, and the press drives the pressure head to exert pressure on the steel structure part (8), causing it to produce plastic bending deformation under the constraint of the roller shaft. During the whole process, the first roller shaft (2.1 ) and there is no relative sliding between the second roller shaft (3.1) and the steel structure part (8); Step 6. Close the press, put away the pressure rod of the press, and take out the bent steel structure parts (8); Step 7. Repeat steps 1 to 6 until all steel structure parts (8) are bent.