Large-size section steel one-step forming production system and method

Abstract

The application discloses a large-size section steel one-time forming production system and method, and relates to the technical field of section steel welding processing. The large-size section steel one-time forming production system comprises a group welding machine used for welding T-shaped steel, a turnover connection conveying line is arranged on the output side of the group welding machine, a second conveying line is arranged side by side on the turnover connection conveying line, and a turnover machine is arranged between the turnover connection conveying line and the second conveying line. The turnover connection conveying line comprises a supporting conveyor and at least two lifting conveyors which are sequentially arranged along the conveying direction. After the T-shaped steel is welded, the supporting conveyor and the lifting conveyors can have multi-point supporting action, and the risk of T-shaped steel falling and impacting is greatly reduced. After welding is completed, the lifting floating frames in the lifting conveyors are lowered to the original height, the T-shaped steel can reach the height corresponding to the clamping mechanism in the turnover machine, the turnover machine can directly clamp, and the production connection between welding and turnover is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of profile steel welding processing, and particularly relates to a large-size profile steel one-time forming production system and method. BACKGROUND

[0002] The profile steel welding processing procedure includes assembling of the first wing plate and the web, assembling and welding of the first wing plate and the web into a T-shaped steel, assembling of the T-shaped steel and the second wing plate, assembling and welding of the T-shaped steel and the second wing plate, etc., and the current welding processing has realized fully automatic operation. Among them, the first wing plate and the web are assembled and welded and corrected in real time in the assembling and welding correcting all-in-one machine, the T-shaped steel welded and output is turned over to another conveying line by the turnover machine, and is assembled with the second wing plate. The turnover machine, such as the profile steel turnover assembling and butt joint system with the announcement number of CN113523704B, adopts a swing arm type turnover mechanism, more specifically, a first turnover arm is installed on a transfer seat, a second turnover arm is installed on the first turnover arm, and a clamping mechanism is installed on the second turnover arm; the clamping mechanism adopts a structure that a fixed clamping arm and a movable clamping arm are used in cooperation, and a space for locking the T-shaped steel is formed between the two clamping arms and the second turnover arm when clamping, and the movable clamping arm has a certain clamping effect on the T-shaped steel; during turnover, based on the clamping effect and the locking of the wing plate by the clamping arm, the reliability of the T-shaped steel in the turnover process can be ensured.

[0003] In actual production, the T-shaped steel welded and output by the assembling and welding correcting all-in-one machine will have bending deformation due to post-welding stress, and the bending deformation is manifested as the lifting of the front end of the post-welding T-shaped steel. In this regard, the applicant uses the post-welding anti-falling device with the announcement number of CN113387109B to support the lifted front end to adapt to the bending deformation. However, in actual use, the post-welding anti-falling device mainly plays a supporting role for the position of the T-shaped steel close to the assembling and welding correcting all-in-one machine, and after the length of the post-welding output T-shaped steel is relatively long, the part of the T-shaped steel beyond the post-welding anti-falling device still has obvious potential energy, especially when the cross-sectional size of the T-shaped steel is large or the length is long, the phenomenon will be more prominent, and thus after the T-shaped steel is completely welded, the T-shaped steel will still fall and collide due to the fact that the rear end no longer has the correcting and pressing effect. In addition to this accident problem, the deformation and lifting of the front end of the T-shaped steel are also not conducive to the process connection of the turnover machine, that is, whether it is the process of inserting the T-shaped steel into the locking space in the clamping mechanism after the turnover mechanism has been positioned, or the process of inserting the locking space into the T-shaped steel when the clamping mechanism is returned after the T-shaped steel has arrived, the fixed clamping arm and the like on the clamping mechanism are easy to interfere with the T-shaped steel, and in severe cases, production accidents may be caused. Figure 11 Figure 12

[0004] In summary, on the basis of the post-welding deformation of the T-shaped steel, it is necessary to consider providing a safer and smoother solution for the production connection with the turnover machine. SUMMARY ​​

[0005] The technical problem solved by the present application is to provide a large-size section steel one-time forming production system and method which can reduce the risk of T-shaped steel falling impact and improve the connection with the post-welding and overturning production.

[0006] To solve the above technical problems, the technical scheme of the present application is: a large-size section steel one-time forming production system, comprising a group welding machine for welding T-shaped steel, an overturning connection conveying line is arranged on the output side of the group welding machine, a second conveying line is arranged side by side on the overturning connection conveying line, and an overturning machine is arranged between the overturning connection conveying line and the second conveying line; the overturning connection conveying line comprises a supporting conveyor and at least two lifting conveyors arranged in sequence along the conveying direction.

[0007] The supporting conveyor comprises a supporting base frame, a supporting swing frame is swing-mounted on the supporting base frame, a supporting roller is mounted at the free end of the supporting swing frame, and a supporting detection mechanism is arranged on the supporting swing frame at the supporting roller; the supporting swing frame is connected with a supporting position driver.

[0008] The lifting conveyor comprises a lifting conveying base frame, a lifting floating frame is mounted on the lifting conveying base frame, a lifting conveying mechanism is mounted on the lifting floating frame, a lifting guide mechanism and a lifting driver are arranged between the lifting floating frame and the lifting conveying base frame, and a lifting height detection mechanism is arranged on the lifting floating frame at the material inlet end of the lifting conveying mechanism.

[0009] As a preferred technical scheme, the supporting detection mechanism comprises a supporting touch roller vertically movably mounted on the supporting swing frame, the supporting touch roller protrudes from the conveying surface of the supporting roller, a first protruding retaining structure is arranged between the supporting touch roller and the supporting swing frame, a supporting state detector is mounted on the supporting swing frame, and the supporting state detector is used to detect the position of the supporting touch roller after being pressed down by the T-shaped steel.

[0010] As a preferred technical scheme, the lifting height detection mechanism comprises a lifting height touch roller vertically movably mounted on the lifting floating frame, the lifting height touch roller protrudes from the conveying surface of the lifting conveying mechanism, a second protruding retaining structure is arranged between the lifting height touch roller and the lifting floating frame, and a lifting state detector is mounted on the lifting floating frame, and the lifting state detector is used to detect the position of the lifting height touch roller after being pressed down by the T-shaped steel.

[0011] As a preferred technical scheme, the lifting guide mechanism comprises two lower transmission frames which are installed on the lifting conveying base frame and swing in pitching, and the two lower transmission frames are oppositely arranged; the lifting floating frame is swingingly installed with upper transmission frames which are respectively located above the corresponding lower transmission frames; the free end of the lower transmission frame is transversely movably connected with the lifting floating frame, the free end of the upper transmission frame is transversely movably connected with the lifting conveying base frame, and the middle part of the lower transmission frame is hingedly connected with the middle part of the corresponding upper transmission frame.

[0012] As a preferred technical scheme, the lifting driver comprises a lifting driving cylinder which is hingedly connected between the free ends of the two upper transmission frames.

[0013] As a preferred technical scheme, the turnover machine comprises a base, a transfer device which is installed on the base and moves back and forth between the turnover connection conveying line and the second conveying line, a turnover assembly which is installed on the transfer device, and a clamping mechanism which is arranged at a material taking end of the turnover assembly; the clamping mechanism comprises a clamping seat, a fixed clamping arm which is fixedly arranged on the clamping seat and forms a locking interval with the clamping seat, and the locking interval is used for inserting the wing plate of the T-shaped steel; an active clamping arm which is swingingly installed on the clamping seat at the opposite side of the fixed clamping arm is arranged on the clamping seat, and a clamping driver is arranged between the active clamping arm and the clamping seat.

[0014] The large-size type steel one-time forming production method uses the large-size type steel one-time forming production system and comprises the following steps:

[0015] The supporting detection mechanism detects the T-shaped steel which arrives at the supporting roller, and records the initial arrival time; according to the welding output speed of the group welding machine and the distance between the lifting height detection mechanism and the supporting detection mechanism, the time t of the T-shaped steel arriving at the lifting height detection mechanism is obtained;

[0016] When the T-shaped steel bends away from the supporting roller, the supporting detection mechanism triggers a supporting signal, the supporting swing frame is driven to swing up by the supporting position driver until the T-shaped steel is detected again by the supporting detection mechanism; at the lifting conveyor, if the time interval between the time of the supporting detection mechanism triggering the supporting signal and the initial arrival time is within the time t, the lifting floating frame is lifted after the time t; if the time interval between the time of the supporting detection mechanism triggering the supporting signal and the initial arrival time is outside the time t, the lifting floating frame is immediately lifted; the lifting floating frame is lifted to the position where the T-shaped steel is detected by the lifting height detection mechanism.

[0017] After the T-shaped steel is welded and arrives at the designated position, the lifting floating frame is lowered to the initial state, and the supporting swing frame is reset; the T-shaped steel is clamped by the turnover machine.

[0018] As a preferred technical solution, the lifting conveyor at the last position in the conveying direction of the T-shaped steel is provided with a position detection mechanism.

[0019] Due to the above technical solution, after the T-shaped steel is welded, the conveying mode of the supporting conveyor and the lifting conveyor is adopted to connect with the turnover machine. During the welding output process of the T-shaped steel, if the T-shaped steel is bent and raised, the supporting conveyor can adaptively support the T-shaped steel to avoid the excessive moment of the raised part and affect the normal welding. The part of the T-shaped steel that passes through the supporting conveyor is supported by the lifting floating frame of the lifting conveyor according to the trigger signal of the supporting detection mechanism at the supporting conveyor, and then the T-shaped steel is supported by the lifting floating frame. Therefore, the T-shaped steel can be supported at multiple points, and after the welding is completed, the risk of falling and impacting is greatly reduced. After the welding is completed, the lifting floating frame of each lifting conveyor is lowered to the original height, and the T-shaped steel can reach the height corresponding to the clamping mechanism of the turnover machine, and the turnover machine can directly clamp. Therefore, the present application improves the production connection between the welding and the turnover while ensuring the safe conveying of the T-shaped steel. BRIEF DESCRIPTION OF DRAWINGS

[0020] The following drawings are only intended to illustrate and explain the present application and do not limit the scope of the present application. Among them:

[0021] Figure 1 is a perspective structural schematic diagram of an embodiment of the present application;

[0022] Figure 2 is a sectional structural schematic diagram of a turnover connection conveying line of an embodiment of the present application;

[0023] Figure 3 is Figure 2 is an enlarged view of the structure of the supporting conveyor in the T-shaped steel;

[0024] Figure 4 is Figure 3 is a state diagram when the T-shaped steel arrives;

[0025] Figure 5 is Figure 4 is a state diagram when the T-shaped steel is bent and raised;

[0026] Figure 6 is Figure 5 is a state diagram after the supporting roller is raised to support;

[0027] Figure 7 is a structural schematic diagram of the supporting and conveying of the bent and raised T-shaped steel by the turnover connection conveying line of an embodiment of the present application;

[0028] Figure 8 is Figure 7 is an enlarged view of the structure of one of the lifting conveyors;

[0029] Figure 9 is Figure 7 The state diagram of T-shaped steel fully supported by the lifting conveyor;

[0030] Figure 10 is Figure 9 The state diagram of T-shaped steel supported by the lifting conveyor after returning;

[0031] Figure 11 The structure diagram of the existing T-shaped steel front end after being lifted and interfering with the clamping mechanism of the turnover machine;

[0032] Figure 12 The structure diagram of the existing clamping mechanism of the turnover machine clamping T-shaped steel.

[0033] In the figure: 11-plate feeding machine; 12-first group of vertical machine; 13-group welding machine; 14-turnover connection conveying line; 15-turnover machine; 16-second conveying line;

[0034] 2-supporting conveyor; 21-supporting base; 22-supporting swing frame; 23-supporting roller; 24-supporting position driver; 25-supporting detection mechanism; 251-supporting touch roller; 252-supporting detection movable rod; 253-supporting detection mounting frame; 254-first protruding retaining structure; 255-supporting state detector;

[0035] 3-lifting conveyor; 31-lifting conveying base; 32-lifting floating frame; 33-lifting conveying mechanism; 34-lifting guide mechanism; 341-lower transmission frame; 342-upper transmission frame; 35-lifting driver; 36-lifting height detection mechanism; 361-lifting height touch roller; 362-second protruding retaining structure; 363-lifting state detector; 37-in-place detection mechanism;

[0036] 4-clamping mechanism; 41-clamping seat; 42-fixed clamping arm; 43-movable clamping arm; 44-locking interval;

[0037] 9-T-shaped steel. DETAILED DESCRIPTION

[0038] The present application will be further described below in conjunction with the drawings and examples. In the following detailed description, certain exemplary embodiments of the present application are described by way of illustration only. It goes without saying that those skilled in the art can recognize that the described embodiments can be modified in various ways without departing from the spirit and scope of the present application. Therefore, the drawings and description are essentially illustrative, and are not intended to limit the scope of protection of the claims.

[0039] As Figure 1As shown, the large-size section steel one-time forming production system comprises a group welding machine 13 for welding T-shaped steel 9, the output side of the group welding machine 13 is provided with a turnover connecting conveying line 14, the side of the turnover connecting conveying line 14 is provided with a second conveying line 16 in parallel, and the turnover connecting conveying line 14 and the second conveying line 16 are provided with a turnover machine 15. Of course, the upstream of the group welding machine 13 also has a plate feeding machine 11, a first group standing machine 12 and the like, the second conveying line 16 is provided with a second group standing machine, and the downstream of the second conveying line 16 is provided with a group welding machine 13 for group welding of T-shaped steel 9 and a second wing plate. The plate feeding machine 11 inputs the plate to the first group standing machine 12, the first group standing machine 12 groups the web plate and the first wing plate, and then inputs to the group welding machine 13 to complete welding, and the T-shaped steel 9 formed after welding is moved to the turnover connecting conveying line 14; the turnover machine 15 clamps the T-shaped steel 9, turns it over by 180°, and then moves it to the second conveying line 16 to group with the second wing plate, and then enters the subsequent group welding machine 13 to complete welding. Of course, the two group welding machines 13 preferably adopt a group welding and straightening integrated machine.

[0040] The turnover machine 15 is a device for clamping, turning over and moving the T-shaped steel 9 to the second conveying line 16 for grouping. Conventionally, the turnover machine 15 comprises a base, a moving device moving back and forth between the turnover connecting conveying line 14 and the second conveying line 16 is installed on the base, a turnover assembly is installed on the moving device, and a clamping mechanism 4 is arranged at the material taking end of the turnover assembly. Figure 2 And Figure 12 The clamping mechanism 4 comprises a clamping seat 41, a fixed clamping arm 42 is fixedly arranged on the clamping seat 41, a locking interval 44 is formed between the fixed clamping arm 42 and the clamping seat 41, and the locking interval 44 is used for inserting the wing plate of the T-shaped steel 9; a movable clamping arm 43 is swingingly installed on the opposite side of the fixed clamping arm 42 on the clamping seat 41, and a clamping driver is arranged between the movable clamping arm 43 and the clamping seat 41. When the movable clamping arm 43 is driven to the clamping state by the clamping driver, the movable clamping arm 43 and the fixed clamping arm 42 can lock the T-shaped steel 9 and have a certain clamping force on it, so that the T-shaped steel 9 can be kept stable during the subsequent turnover process.

[0041] The system composition, production process and structural principle of the turnover machine 15 are all known prior art, and will not be described here.

[0042] As shown in Figure 1 And Figure 2 The turnover connecting conveying line 14 comprises a supporting conveyor 2 and at least two lifting conveyors 3 arranged in sequence in the conveying direction. The number of the lifting conveyors 3 is set according to the length of the T-shaped steel 9 and the like, and the embodiment does not limit it, and only two are shown.

[0043] As shown in Figure 2 and Figure 3 The supporting conveyor 2 comprises a supporting base 21, a supporting swing frame 22 is swingly installed on the supporting base 21, a supporting roller 23 is installed at the free end of the supporting swing frame 22, a supporting detection mechanism 25 is arranged at the supporting roller 23 on the supporting swing frame 22, and a supporting position driver 24 is connected to the supporting swing frame 22. The supporting detection mechanism 25 has two functions: one is to detect whether the supporting roller 23 has supporting effect on the T-shaped steel 9, and to trigger the driving signal of the supporting position driver 24 when there is no supporting effect, so that the supporting roller 23 supports the T-shaped steel 9; the other is to provide the initial trigger signal after the T-shaped steel 9 is welded, and to provide a reference for the starting time of the subsequent each lifting conveyor 3 to lift the supporting T-shaped steel 9. The functions are described in the production method, and will not be described here.

[0044] As shown in Figure 3 The supporting detection mechanism 25 comprises a supporting touch roller 251 which is vertically movably installed on the supporting swing frame 22. The vertical movement here is not strictly vertical, and is not necessarily linear movement, as long as it is approximately vertical movement. This embodiment only provides one implementation, which is that a supporting detection movable rod 252 is vertically slidably installed on the supporting swing frame 22, a supporting detection mounting frame 253 is fixedly arranged on the supporting detection movable rod 252, and the supporting touch roller 251 is installed on the supporting detection mounting frame 253.

[0045] The supporting touch roller 251 protrudes from the conveying surface of the supporting roller 23, and a first protruding retaining structure 254 is arranged between the supporting touch roller 251 and the supporting swing frame 22. The first protruding retaining structure 254 keeps the supporting touch roller 251 protruding from the conveying surface of the supporting roller 23 without external force, and can be shrunk downward under the pressure of the T-shaped steel 9 when the T-shaped steel 9 arrives. Based on the vertical movement of the supporting touch roller 251 realized by the supporting detection movable rod 252, the first protruding retaining structure 254 can be realized by a protruding retaining spring sleeved on the supporting detection movable rod 252. The protruding retaining spring has a certain pre-compression amount when installed and abuts against the supporting detection mounting frame 253 to provide a protruding spring force.

[0046] A supporting state detector 255 is installed on the supporting swing frame 22, and is used to detect the position of the supporting touch roller 251 after being pressed by the T-shaped steel 9. The supporting state detector 255 can be realized by a proximity switch or a laser sensor, which is not limited here.

[0047] Based on the above structure, as shown in Figure 3 , the bearing touch roller 251 keeps the state of protruding the bearing roller 23 conveying surface in the normal state. After the T-shaped steel 9 comes, as shown in Figure 4 , the T-shaped steel 9 presses down the bearing touch roller 251, the bearing state detector 255 triggers a signal, which is used as a reference signal for the subsequent lifting conveyor 3 to start bearing, and can be used as a reference for the bearing roller 23 to keep bearing the T-shaped steel 9. More specifically, after the T-shaped steel 9 presses down the bearing touch roller 251, the bearing touch roller 251 is on the same conveying surface as the bearing roller 23, and when the T-shaped steel 9 is bent and deformed due to post-welding bending, as shown in Figure 5 , the T-shaped steel 9 will leave the conveying surface of the bearing roller 23, and the bearing touch roller 251 will protrude under the action of the first protruding retaining structure 254, which makes the bearing state detector 255 unable to detect the pressing state of the bearing touch roller 251, and further makes it possible to judge that the T-shaped steel 9 is bent and raised; the related controller controls the bearing position driver 24 to drive the bearing swing frame 22 to swing up, as shown in Figure 6 , the bearing roller 23 goes up accordingly, and the bearing touch roller 251 forms a reverse pressing relative to the bearing roller 23; after the bearing roller 23 re-bears the T-shaped steel 9, the bearing touch roller 251 returns to the pressing position that can be detected by the bearing state detector 255, and triggers a signal again, which is only used to stop the driving of the bearing position driver 24, and thus the bearing roller 23 forms a state of continuously bearing the T-shaped steel 9.

[0048] As shown in Figure 2 and Figure 8 , the lifting conveyor 3 of the embodiment comprises a lifting conveying base frame 31, a lifting floating frame 32 is installed on the lifting conveying base frame 31, a lifting conveying mechanism 33 is installed on the lifting floating frame 32, and the lifting conveying mechanism 33 is usually a roller type conveying mechanism; a lifting guide mechanism 34 and a lifting driver 35 are arranged between the lifting floating frame 32 and the lifting conveying base frame 31; a lifting height detection mechanism 36 is arranged on the lifting floating frame 32 at the feeding end of the lifting conveying mechanism 33.

[0049] The lifting driver 35 drives the lifting floating frame 32 to rise until the lifting conveying mechanism 33 reaches a height at which the T-shaped steel 9 can be borne, at which time the lifting height detection mechanism 36 detects the T-shaped steel 9, the lifting driver 35 stops driving, and the lifting conveying mechanism 33 is kept at a height at which the T-shaped steel 9 can be borne.

[0050] As shown in Figure 8As shown, the lifting height detection mechanism 36 of the embodiment includes a lifting height touch roller 361 vertically movably mounted on the lifting floating frame 32, the lifting height touch roller 361 is arranged protruding from the conveying surface of the lifting conveying mechanism 33, and a second protruding retaining structure 362 is arranged between the lifting height touch roller 361 and the lifting floating frame 32; the lifting floating frame 32 is provided with a lifting state detector 363, which is used to detect the position of the lifting height touch roller 361 after being pressed down by the T-shaped steel 9. The structural composition of the lifting height detection mechanism 36 of the embodiment is similar to that of the supporting detection mechanism 25, and there is only one difference in working principle between the lifting height detection mechanism 36 and the supporting detection mechanism 25, which is that the lifting height detection mechanism 36 does not generate a trigger signal for the initial action of the lifting driver 35. In addition, the other working principles of the lifting height detection mechanism 36 are the same as those of the supporting detection mechanism 25, for example, when the subsequent T-shaped steel 9 may be lifted due to greater bending and deviates from the lifting conveying mechanism 33, the lifting height touch roller 361 protrudes upward to make the lifting state detector 363 generate a signal for the lifting driver 35 to continue driving to lift, and after the lifting conveying mechanism 33 supports the T-shaped steel 9 again, the lifting driver 35 stops driving because the lifting state detector 363 detects the down position of the lifting height touch roller 361 again.

[0051] As shown in Figure 2 and Figure 8 As shown, the lifting height detection mechanism 36 of the embodiment includes a lifting height touch roller 361 vertically movably mounted on the lifting floating frame 32, the lifting height touch roller 361 is arranged protruding from the conveying surface of the lifting conveying mechanism 33, and a second protruding retaining structure 362 is arranged between the lifting height touch roller 361 and the lifting floating frame 32; the lifting floating frame 32 is provided with a lifting state detector 363, which is used to detect the position of the lifting height touch roller 361 after being pressed down by the T-shaped steel 9. The structural composition of the lifting height detection mechanism 36 of the embodiment is similar to that of the supporting detection mechanism 25, and there is only one difference in working principle between the lifting height detection mechanism 36 and the supporting detection mechanism 25, which is that the lifting height detection mechanism 36 does not generate a trigger signal for the initial action of the lifting driver 35. In addition, the other working principles of the lifting height detection mechanism 36 are the same as those of the supporting detection mechanism 25, for example, when the subsequent T-shaped steel 9 may be lifted due to greater bending and deviates from the lifting conveying mechanism 33, the lifting height touch roller 361 protrudes upward to make the lifting state detector 363 generate a signal for the lifting driver 35 to continue driving to lift, and after the lifting conveying mechanism 33 supports the T-shaped steel 9 again, the lifting driver 35 stops driving because the lifting state detector 363 detects the down position of the lifting height touch roller 361 again.

[0052] Based on the above structure, preferably, the lifting driver 35 comprises a lifting driving cylinder connected between the free ends of the two upper driving frames 342. The above guiding and driving structure is composed, and the T-shaped steel 9 deflection pressure and gravity after full load are mainly borne by the X-shaped frame, the lifting driving cylinder is subjected to small force, so that a single lifting driving cylinder can be used as the driving power to realize the lifting driving of the long lifting conveying mechanism 33, and the length of the single lifting conveying machine 3 is long, so that the equipment arrangement can be reduced, and the cost can be reduced.

[0053] The large-size profile steel one-time forming production method uses the large-size profile steel one-time forming production system and comprises the following steps.

[0054] As shown in Figure 4 , the supporting detection mechanism 25 detects the T-shaped steel 9 arriving at the supporting roller 23 and records the initial arrival time. The triggering of the detection is realized by the position detection of the supporting touch roller 251 after the T-shaped steel 9 is pressed, which has been described above and will not be repeated here. According to the welding output speed of the group welding machine 13 and the distance between the lifting height detection mechanism 36 and the supporting detection mechanism 25, the time t of the T-shaped steel 9 arriving at the lifting height detection mechanism 36 is obtained, that is, after the T-shaped steel 9 arrives at the lifting height detection mechanism 36 after the time t after the supporting detection mechanism 25 detects the arrival of the T-shaped steel 9. Of course, for the plurality of lifting conveying machines 3 in the embodiment, because the distances between the lifting height detection mechanisms 36 and the supporting detection mechanisms 25 are different, the times t of the T-shaped steel 9 arriving at the positions are also different, and in actual control, the corresponding times t can be recorded as t1, t2, etc.

[0055] As shown in Figure 5 and Figure 6 , when the T-shaped steel 9 is bent away from the supporting roller 23, the supporting detection mechanism 25 triggers the supporting signal, and the supporting position driver 24 drives the supporting swing frame 22 to swing until the supporting detection mechanism 25 detects the T-shaped steel 9 again. The control principle has been described above and will not be repeated here.

[0056] At the lifting conveying machine 3, if the time interval between the time when the supporting detection mechanism 25 triggers the supporting signal and the initial arrival time is within the time t, the lifting floating frame 32 is lifted after the time t, if the time interval between the time when the supporting detection mechanism 25 triggers the supporting signal and the initial arrival time is outside the time t, the lifting floating frame 32 is immediately lifted; the lifting floating frame 32 is lifted to the position where the lifting height detection mechanism 36 detects the T-shaped steel 9. Finally, the T-shaped steel 9 continuously welded reaches the state of multi-point supporting conveying, as shown in Figure 7 .

[0057] As Figure 9 And Figure 10 As shown in sequence, after the T-shaped steel 9 is welded and reaches the designated position, the lifting floating frame 32 is lowered to the initial state, and the supporting swing frame 22 is reset. Preferably, the lifting conveyor 3 at the end of the T-shaped steel 9 conveying direction is provided with a position detection mechanism 37 to detect the arrival of the welded T-shaped steel 9 at the designated position. The position detection mechanism 37 can also be implemented by using a common laser sensor. Accordingly, after the position detection mechanism 37 detects that the T-shaped steel 9 reaches the designated position, the T-shaped steel 9 is mostly or entirely on the lifting conveyor 3, and the position detection mechanism 37 triggers a reset signal at the same time. The lifting driver 35 and the supporting position driver 24 are both driven to reset the corresponding components according to the reset signal. Thus, the work of the turnover connection conveying line 14 adapting to the conveying of the T-shaped steel 9 in the welding process is completed.

[0058] After that, the turnover machine 15 clamps the T-shaped steel 9. For the clamping mechanism 4 on the turnover machine 15 of the embodiment, the clamping mechanism 4 is moved to the laid flat T-shaped steel 9 by the moving device in the turnover machine 15, so that the corresponding side of the upper plate of the T-shaped steel 9 is passively inserted into the locking interval 44. When the clamping driver drives the movable clamping arm 43 to the clamping state, the clamping mechanism 4 clamps the T-shaped steel 9. Then the turnover machine 15 can be turned over and moved to make the T-shaped steel 9 reach the second conveying line 16 to be assembled with the second wing plate. Accordingly, during the output of the welded T-shaped steel 9 to the turnover connection conveying line 14, the stop position of the moving device should be such that the clamping mechanism 4 is on the side of the conveying path of the T-shaped steel 9, and after the welded T-shaped steel 9 reaches the designated position, the above-mentioned moving and clamping actions are performed.

[0059] After the T-shaped steel 9 is welded, the embodiment uses the conveying mode of the supporting conveyor 2 and the lifting conveyor 3 to connect with the turnover machine 15. During the output of the welding of the T-shaped steel 9, if the T-shaped steel 9 is bent and raised, the supporting conveyor 2 can adaptively support it to avoid the excessive moment of the raised part affecting the normal welding. According to the trigger signal of the supporting detection mechanism 25 at the supporting conveyor 2, the lifting floating frame 32 is lifted by the lifting conveyor 3 to support the subsequent conveying. Thus, the T-shaped steel 9 can be supported at multiple points, and the risk of falling impact is greatly reduced after the welding is completed. After the welding is completed, the lifting floating frame 32 in each lifting conveyor 3 is lowered to the original height, and the T-shaped steel 9 can reach the height corresponding to the clamping mechanism 4 in the turnover machine 15 as a whole. The turnover machine 15 can directly clamp the T-shaped steel 9. Thus, the embodiment improves the production connection between the welding and the turnover while ensuring the safe conveying of the T-shaped steel 9.

[0060] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A large-size section steel one-step forming production system, comprising a group welding machine for welding T-shaped steel, characterized in that: The output side of the group welding machine is provided with a turnover connecting conveying line, the side of the turnover connecting conveying line is provided with a second conveying line in parallel, and a turnover machine is arranged between the turnover connecting conveying line and the second conveying line; the turnover connecting conveying line comprises a supporting conveying machine and at least two lifting conveying machines arranged in sequence along the conveying direction. The supporting conveying machine comprises a supporting base frame, a supporting swing frame is swingingly mounted on the supporting base frame, a supporting roller is mounted at the free end of the supporting swing frame, and a supporting detection mechanism is arranged at the supporting roller on the supporting swing frame; the supporting swing frame is connected with a supporting position driver. The supporting detection mechanism has two functions: one is to detect whether the supporting roller has a supporting effect on the T-shaped steel, and to trigger the driving signal of the supporting position driver when the supporting effect does not exist, so that the supporting roller supports the T-shaped steel; the other is to provide an initial trigger signal after T-shaped steel welding, and to provide a reference for the starting time of each lifting conveying machine lifting the supporting T-shaped steel. The lifting conveying machine comprises a lifting conveying base frame, a lifting floating frame is mounted on the lifting conveying base frame, a lifting conveying mechanism is mounted on the lifting floating frame, a lifting guide mechanism and a lifting driver are arranged between the lifting floating frame and the lifting conveying base frame, and a lifting height detection mechanism is arranged at the feeding end of the lifting conveying mechanism on the lifting floating frame. The lifting height detection mechanism comprises a lifting height touch roller which is vertically movably mounted on the lifting floating frame, and a lifting state detector is mounted on the lifting floating frame, the lifting state detector is used for detecting the position of the lifting height touch roller after being pressed down by the T-shaped steel, and the lifting height detection mechanism does not generate a trigger signal for the initial action of the lifting driver.

2. The one-step production system for large size steel shapes as recited in claim 1, wherein: The supporting detection mechanism comprises a supporting touch roller which is vertically movably mounted on the supporting swing frame, the supporting touch roller protrudes from the conveying surface of the supporting roller, and a first protruding retaining structure is arranged between the supporting touch roller and the supporting swing frame; a supporting state detector is mounted on the supporting swing frame, and the supporting state detector is used for detecting the position of the supporting touch roller after being pressed down by the T-shaped steel.

3. The one-step production system for large size steel shapes as recited in claim 1, wherein: The lifting height touch roller protrudes from the conveying surface of the lifting conveying mechanism, and a second protruding retaining structure is arranged between the lifting height touch roller and the lifting floating frame.

4. The one-step production system for large-scale steel sections of claim 1, wherein: The lifting guide mechanism comprises two lower transmission frames which are swingingly mounted on the lifting conveying base frame in a pitching manner, and the two lower transmission frames are arranged in opposition; an upper transmission frame is swingingly mounted on the lifting floating frame above the corresponding lower transmission frame on each side, the free end of the lower transmission frame is movably connected with the lifting floating frame in a transverse direction, the free end of the upper transmission frame is movably connected with the lifting conveying base frame in a transverse direction, and the middle part of the lower transmission frame is hingedly connected with the middle part of the corresponding upper transmission frame.

5. The one-step production system for large size steel sections as claimed in claim 4 wherein: The lifting driver comprises a lifting driving cylinder which is hingedly connected between the free ends of the two upper transmission frames.

6. The one-step production system for large-scale steel sections, as claimed in claim 1 wherein: The turnover machine comprises a base, a transfer device installed on the base and moving back and forth between the turnover connection conveying line and the second conveying line, a turnover assembly installed on the transfer device, and a clamping mechanism arranged at a material taking end of the turnover assembly; the clamping mechanism comprises a clamping seat, a fixed clamping arm fixedly arranged on the clamping seat, and a locking interval formed between the fixed clamping arm and the clamping seat, which is used for inserting a wing plate of the T-shaped steel; an active clamping arm is swingingly installed on the clamping seat at an opposite side of the fixed clamping arm, and a clamping driver is arranged between the active clamping arm and the clamping seat.

7. A method for one-step forming of large-size sections, characterized in that, The large-size profile steel one-time forming production system comprises the following steps: The supporting detection mechanism detects the T-shaped steel arriving at the supporting roller, and records the initial arrival time; according to the welding output speed of the group welding machine and the distance between the lifting height detection mechanism and the supporting detection mechanism, the time t of the T-shaped steel arriving at the lifting height detection mechanism is obtained; When the T-shaped steel bends away from the supporting roller, the supporting detection mechanism triggers a supporting signal, and the supporting swing frame is driven to swing up until the supporting detection mechanism detects the T-shaped steel again; at the lifting conveyor, if the time interval between the time of the supporting detection mechanism triggering the supporting signal and the initial arrival time is within the time t, the lifting floating frame is lifted after the time t; if the time interval between the time of the supporting detection mechanism triggering the supporting signal and the initial arrival time is outside the time t, the lifting floating frame is immediately lifted; the lifting floating frame is lifted to the position where the lifting height detection mechanism detects the T-shaped steel. After the T-shaped steel is welded and arrives at the specified position, the lifting floating frame is lowered to the initial state, and the supporting swing frame is reset; the turnover machine clamps the T-shaped steel.

8. The one-step forming method for large-sized steel sections according to claim 7, characterized in that: The in-place detection mechanism is arranged at the lifting conveyor at the last position in the conveying direction of the T-shaped steel.

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