A longitudinal beam flipping positioning device

Abstract

A longitudinal beam flipping and positioning device comprises a conveying roller group, a flipping mechanism arranged on one side of the conveying roller group, and a fine-tuning roller group arranged on the other side of the flipping mechanism; a first positioning detection mechanism is arranged on the conveying roller group, and a lifting and moving mechanism is arranged at the bottom of the conveying roller group, and the lifting and moving mechanism is used to move the longitudinal beam after it stops moving on the conveying roller group to the flipping mechanism; a second positioning detection mechanism and a positioning mechanism are arranged on the fine-tuning roller group, and the positioning mechanism and the second positioning detection mechanism are used together to determine the final position of the longitudinal beam. The present invention has a simple structure, saves time and labor, and can flip and position the longitudinal beam after stamping, replacing the original operation mode of manually flipping the longitudinal beam, reducing the operation risk, improving work efficiency, and reducing labor costs.

Description

Technical Field

[0001] The invention relates to the technical field of overturning and positioning equipment, and in particular to a longitudinal beam overturning and positioning device. Background Art

[0002] The frame is the most important load-bearing component in a car, and the frame longitudinal beam is one of the key parts, so the longitudinal beam plays an important load-bearing role in the car. The side beam frame, center beam frame, etc. of the car all contain longitudinal beams. The longitudinal beams are usually stamped from low-alloy steel plates, and the cross-sectional shape is generally groove-shaped.

[0003] After the stamping is completed, the longitudinal beam needs to be transported to the vicinity of the hole-punching device for drilling. At this time, a transport cart is often used for transportation. When the longitudinal beam of the groove structure is placed on the load-bearing surface of the transport cart after stamping, it is often placed in a relative setting to reduce space occupation. Traditionally, it is placed manually, one positive and one negative. Later, some companies used robots to place the longitudinal beams, but when the reverse longitudinal beam needs to be placed, the robot cannot flip it, and it is also necessary to manually flip the longitudinal beam, which is time-consuming and labor-intensive, and highly dangerous and labor-intensive.

[0004] Therefore, there is an urgent need for a longitudinal beam flipping and positioning device that saves time and effort and has a simple structure. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a longitudinal beam flipping and positioning device, which has a simple structure, saves time and effort, and can flip and position the longitudinal beam after stamping, replacing the original manual operation method of flipping the longitudinal beam, reducing the operating risk, improving work efficiency, and reducing labor costs.

[0006] In order to solve the above technical problems, the technical solution of the present invention is:

[0007] A longitudinal beam turning and positioning device, characterized in that it comprises a conveying roller group, a turning mechanism arranged on one side of the conveying roller group, and a fine-tuning roller group arranged on the other side of the turning mechanism;

[0008] The conveying roller group is provided with a first positioning detection mechanism, and the bottom of the conveying roller group is provided with a lifting and moving mechanism, and the lifting and moving mechanism is used to move the longitudinal beam on the conveying roller group after it stops moving to the turning mechanism;

[0009] The fine-tuning roller group is provided with a second positioning detection mechanism and a positioning mechanism, and the positioning mechanism is used together with the second positioning detection mechanism to determine the final position of the longitudinal beam.

[0010] Preferably, the conveying roller group includes a first frame and a plurality of conveying rollers rotatably mounted on the first frame, and the conveying rollers are drivingly connected to the first power device;

[0011] The first frame is equidistantly arranged in a first positioning area, a second positioning area and a third positioning area along the longitudinal beam movement direction, and the first positioning detection mechanism is arranged on the first frame located in the first positioning area, the second positioning area and the third positioning area;

[0012] The first positioning detection mechanism includes a first infrared transmitting end and a first infrared receiving end used in conjunction with the first infrared transmitting end.

[0013] Preferably, there are two lifting and moving mechanisms, and the two lifting and moving mechanisms are respectively arranged between the first positioning area and the second positioning area, and between the second positioning area and the third positioning area.

[0014] Preferably, the lifting and moving mechanism includes a moving base, a roller driven by a servo motor is arranged on the outer side of the bottom of the moving base, a lifting cylinder is fixedly installed on the top of the moving base, and a lifting plate is fixedly installed on the piston rod of the lifting cylinder.

[0015] Preferably, the flipping mechanism includes a flipping frame, and a first flap and a second flap are rotatably installed on the top of the flipping frame, the first flap is located on a side close to the conveying roller group, and the second flap is located on a side close to the fine-tuning roller group, the first flap is hinged to the first cylinder, the first cylinder is hinged to the flipping frame, the second flap is hinged to the second cylinder, and the second cylinder is hinged to the flipping frame.

[0016] Preferably, the first flap comprises a first bearing portion arranged horizontally, one end of the first bearing portion close to the conveying roller group vertically extends upward to form a blocking portion, and the bottom of the first bearing portion is hinged to the first cylinder;

[0017] The second flap includes a guide portion, which is arranged obliquely close to the side of the fine-tuning roller group. The end of the guide portion close to the first flap vertically extends upward to form a second bearing portion, and the two outer sides of the guide portion are respectively fixedly connected with auxiliary bearing portions.

[0018] Preferably, the fine-tuning roller group includes a second frame and a plurality of fine-tuning rollers rotatably mounted on the second frame, and the fine-tuning rollers are drivingly connected to the second power device;

[0019] The second positioning detection mechanism is fixedly mounted on the second frame, and the second positioning detection mechanism includes a second infrared transmitting end and a second infrared receiving end used in conjunction with the second infrared transmitting end;

[0020] A locking mechanism is fixedly installed on the inner side of the second frame.

[0021] Preferably, the positioning mechanism comprises a rotary cylinder coaxially arranged with the fine-tuning roller, and a first positioning plate installed on the inner side of the second frame, and the rotary cylinder and the first positioning plate are both located on the second frame away from the flipping mechanism.

[0022] The first clamping plate is threadedly connected to the second frame via a connecting rod;

[0023] A second positioning plate is fixedly connected to the outer side of the piston rod of the rotary cylinder, and the initial position of the second positioning plate is arranged obliquely close to the side of the fine-tuning roller.

[0024] Preferably, a guide mechanism is fixedly mounted on the second frame, the guide mechanism comprises two guide rods coaxially arranged with the fine-tuning roller, the two guide rods are respectively arranged on both sides of the rotary cylinder, and guide plates are slidably arranged on the two guide rods;

[0025] The guide plate is provided with a through hole for slidingly cooperating with the piston rod of the rotary cylinder. Two annular blocks are fixedly arranged on the piston rod of the rotary cylinder. The two annular blocks are respectively arranged on both sides of the guide plate.

[0026] After adopting the above technical solution, the beneficial effects of the present invention are:

[0027] In the present invention, a conveying roller group is provided, and a first positioning detection mechanism is provided on the conveying roller group. The first positioning detection mechanism can detect the position of the longitudinal beam and cooperate with the conveying roller group to realize the positioning of the longitudinal beam. After positioning, the longitudinal beam that stops moving is located on the roller surface of the conveying roller group. The lifting and moving mechanism lifts and moves the longitudinal beam to realize the movement of the longitudinal beam to the flipping mechanism for subsequent flipping of the longitudinal beam. After the flipping, the longitudinal beam slides to the fine-tuning roller group by gravity, and the positioning mechanism positions the longitudinal beam to determine the lateral position of the longitudinal beam. After the positioning mechanism positions the longitudinal beam, the second positioning detection mechanism cooperates with the fine-tuning roller group to determine the longitudinal position of the longitudinal beam, so that the longitudinal beam matches the grasping position of the manipulator, which is convenient for the manipulator to grasp. The present invention has a simple structure and adopts a flipping mechanism to flip the longitudinal beam, which replaces the original operation method of manually flipping the longitudinal beam and reduces labor intensity. The positioning mechanism cooperates with the second positioning detection mechanism to realize the final position determination of the longitudinal beam, improves the grasping success rate of the manipulator, and also makes the longitudinal beam meet the transportation requirements of the transport trolley. The positioning process is simple and efficient, which improves work efficiency.

[0028] In the present invention, the turning mechanism includes a first flap and a second flap, and the lifting and moving mechanism places the longitudinal beam on the first flap for temporary placement. After the second flap is lifted by the second cylinder, the guide part is in a vertical state, and the second bearing part is in a horizontal state. The first flap is lifted by the first cylinder, the first bearing part moves toward the guide part, the longitudinal beam moves onto the second bearing part, the guide part moves downward, and finally tilts to the fine-tuning roller group. Under the action of gravity, the longitudinal beam slides to the roller surface of the fine-tuning roller group to complete the turning operation. It has a compact structure, is safe and reliable, replaces manual turning of the longitudinal beam, and improves the safety of operation.

[0029] In the present invention, the positioning mechanism includes a rotary cylinder and a first positioning plate, and the second positioning plate is fixedly connected to the outer side of the piston rod of the rotary cylinder. The second positioning plate cooperates with the first positioning plate to determine the lateral position of the longitudinal beam; after the position is determined, the second positioning detection mechanism cooperates with the fine-tuning roller group to determine the longitudinal position of the longitudinal beam, so that it finally matches the gripping position of the robot arm, replacing the original method of manually placing the longitudinal beam on the transport trolley, saving time and effort, reducing labor, improving efficiency, and achieving profit maximization.

[0030] To sum up, the longitudinal beam flipping and positioning device provided by the present invention has a simple structure, saves time and effort, and can flip and position the longitudinal beam after stamping, replacing the original manual operation method of flipping the longitudinal beam, thereby reducing the risk of operation, improving work efficiency, and reducing labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0032] Figure 1 is a schematic structural diagram of an embodiment of the present invention;

[0033] Figure 2 yes Figure 1 A top view of

[0034] Figure 3 yes Figure 2 The structural diagram of the flipping mechanism;

[0035] Figure 4 yes Figure 2 Schematic diagram of the structure of the mid-rotation cylinder and the guide mechanism;

[0036] Figure 5 yes Figure 4 A schematic diagram of the structure of the middle guide plate;

[0037] Figure 6 yes Figure 2 The structural diagram of the lifting and moving mechanism;

[0038] In the figure:

[0039] 1-conveying roller group, 11-first frame, 12-conveying roller, 13-first positioning area, 14-second positioning area, 15-third positioning area, 16-track, 2-turning mechanism, 21-turning frame, 22-first flap, 221-first bearing part, 22-blocking part, 23-second flap, 231-guide part, 232-second bearing part, 233-auxiliary bearing part, 24-first cylinder, 25-second cylinder, 3-fine-tuning roller group, 31-second frame, 32-fine-tuning roller, 4-first positioning detection mechanism , 41-first infrared emitting end, 42-first infrared receiving end, 5-lifting and moving mechanism, 51-moving base, 52-roller, 53-lifting cylinder, 54-lifting plate, 55-auxiliary blocking part, 6-second positioning detection mechanism, 61-second infrared emitting end, 62-second infrared receiving end, 7-locking mechanism, 71-rotating cylinder, 711-second locking plate, 72-first locking plate, 721-connecting rod, 73-annular block, 8-guide mechanism, 81-guide rod, 82-guide plate, 821-through hole. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0041] like Figure 1 As shown, the present invention comprises a conveying roller set 1 , a turning mechanism 2 arranged on one side of the conveying roller set 1 , and a fine-tuning roller set 3 arranged on the other side of the turning mechanism 2 .

[0042] A first positioning detection mechanism 4 is provided on the conveying roller set 1 , and a lifting and moving mechanism 5 is provided at the bottom of the conveying roller set 1 . The lifting and moving mechanism 5 is used to move the longitudinal beam on the conveying roller set 1 after it stops moving to the turning mechanism 2 .

[0043] The fine-tuning roller group 3 is provided with a second positioning detection mechanism 6 and a positioning mechanism 7 . The positioning mechanism 7 is used together with the second positioning detection mechanism 6 to determine the final position of the longitudinal beam.

[0044] like Figure 2 As shown, the conveying roller set 1 includes a first frame 11 and a plurality of conveying rollers 12 rotatably mounted on the first frame 11 , and the conveying rollers 12 are drivingly connected to a first power device.

[0045] The first frame 11 is equidistantly arranged along the longitudinal beam movement direction into a first positioning area 13 , a second positioning area 14 and a third positioning area 15 , and a first positioning detection mechanism 4 is arranged on the first frame 11 located in the first positioning area 13 , the second positioning area 14 and the third positioning area 15 .

[0046] The first positioning detection mechanism 4 comprises a first infrared transmitting end 41 and a first infrared receiving end 42 used in conjunction with the first infrared transmitting end 41 .

[0047] like Figure 2 As shown, there are two lifting and moving mechanisms 5 , and the two lifting and moving mechanisms 5 are respectively arranged between the first positioning area 13 and the second positioning area 14 , and between the second positioning area 14 and the third positioning area 15 .

[0048] like Figure 6 As shown, the lifting and moving mechanism 5 includes a moving base 51, and a roller 52 driven by a servo motor is arranged on the outer side of the bottom of the moving base 51, and a lifting cylinder 53 is fixedly installed on the top of the moving base 51, and a lifting plate 54 is fixedly installed on the piston rod of the lifting cylinder 53. The lifting plate 54 extends upward from the top of one end of the conveying roller group 1 to form an auxiliary blocking part 55. The auxiliary blocking part 55 is used to prevent the longitudinal beam from sliding when lifting the moving longitudinal beam, so as to ensure that the longitudinal beam moves to the flipping mechanism 2.

[0049] like Figure 3 As shown, the flipping mechanism 2 includes a flipping frame 21, and a first flap 22 and a second flap 23 are rotatably installed on the top of the flipping frame 21. The first flap 22 is located on the side close to the conveying roller group 1, and the second flap 23 is located on the side close to the fine-tuning roller group 3. The first flap 22 is hinged to the first cylinder 24, the first cylinder 24 is hinged to the flipping frame 21, the second flap 23 is hinged to the second cylinder 25, and the second cylinder 25 is hinged to the flipping frame 21.

[0050] The first flap 22 includes a horizontally arranged first bearing portion 221 . One end of the first bearing portion 221 close to the conveying roller set 1 vertically extends upward to form a blocking portion 222 . The bottom of the first bearing portion 221 is hinged to the first cylinder 24 .

[0051] The second flap 23 includes a guide portion 231. In a non-working state, the guide portion 231 is arranged obliquely close to one side of the fine-tuning roller group 3. One end of the guide portion 231 close to the first flap 22 extends vertically upward to form a second bearing portion 232. The two outer sides of the guide portion 231 are respectively fixedly connected with auxiliary bearing portions 233.

[0052] In the present invention, the flip mechanism 2 includes a first flap 22 and a second flap 23. The lifting and moving mechanism 5 places the longitudinal beam on the first flap 22 for temporary placement. After the second flap 23 is lifted by the second cylinder 25, the guide portion 231 is in a vertical state, and the second bearing portion 232 is in a horizontal state. The first flap 22 is lifted by the first cylinder 24, and the first bearing portion 221 moves toward the guide portion 231. The longitudinal beam flips and moves to the second bearing portion 232, and the guide portion 231 moves downward, and finally tilts to the fine-tuning roller group 3. Under the action of gravity, the longitudinal beam slides to the roller surface of the fine-tuning roller group 3 to complete the flipping operation. It has a compact structure, is safe and reliable, replaces manual flipping of the longitudinal beam, and improves the safety of operation.

[0053] like Figure 1 and Figure 2 As shown, the fine-tuning roller group 3 includes a second frame 31 and a plurality of fine-tuning rollers 32 rotatably mounted on the second frame 31 , and the fine-tuning rollers 32 are drivingly connected to the second power device.

[0054] A second positioning detection mechanism 6 is fixedly mounted on the second frame 31 . The second positioning detection mechanism 6 includes a second infrared emitting end 61 and a second infrared receiving end 62 used in conjunction with the second infrared emitting end 61 .

[0055] In the present invention, the first positioning detection mechanism 4 and the second positioning detection mechanism 6 both perform positioning detection in the form of infrared emission. The first positioning detection mechanism 4 and the second positioning detection mechanism 6 are respectively connected to the controller signals that control the first power device and the second power device, and are used to convert the detected control information into electrical signals and transmit them to the controller. The controller controls the start and stop of the first power device and the second power device respectively, and further controls the movement distance of the conveying roller 12 and the fine-tuning roller 32, so as to adjust the position of the longitudinal beam.

[0056] like Figure 2 , Figure 4 and Figure 5 As shown, a locking mechanism 7 is fixedly installed on the inner side of the second frame 31, and the locking mechanism 7 includes a rotary cylinder 71 coaxially arranged with the fine-tuning roller 32, and a first locking plate 72 installed on the inner side of the second frame 31, and the rotary cylinder 71 and the first locking plate 72 are both located on the second frame 31 away from the flipping mechanism 2.

[0057] The first positioning plate 72 is threadedly connected to the second frame 31 via a connecting rod 721, so as to adjust the distance between the first positioning plate 72 and the second frame 31 according to longitudinal beams of different sizes, thereby meeting the position requirements of the manipulator for grasping the longitudinal beams.

[0058] A second retaining plate 711 is fixedly connected to the outer side of the piston rod of the rotary cylinder 71. The initial position of the second retaining plate 711 is set obliquely close to the side of the fine-tuning roller 32, ensuring that when the flipping mechanism 2 places the longitudinal beam on the roller surface of the fine-tuning roller group 3, it will not be blocked by the second retaining plate 711, thereby ensuring the normal progress of the process.

[0059] like Figure 4 and Figure 5 As shown, a guide mechanism 8 is fixedly installed on the second frame 31, and the guide mechanism 8 includes two guide rods 81 coaxially arranged with the fine-tuning roller 32, and the two guide rods 81 are respectively arranged on both sides of the rotary cylinder 71, and guide plates 82 are slidably arranged on the two guide rods 81, and the two ends of the two guide rods 81 are respectively fixedly connected to the second frame 31.

[0060] The guide plate 82 is provided with a through hole 821 for slidingly cooperating with the piston rod of the rotary cylinder 71 . Two annular blocks 73 are fixedly provided on the piston rod of the rotary cylinder 71 . The two annular blocks 83 are respectively provided on both sides of the guide plate 82 .

[0061] The piston rod of the rotary cylinder 71 moves coaxially with the fine-tuning roller 32 under the guidance of the guide plate 82, ensuring that the moving direction of the second positioning plate 711 is perpendicular to the moving direction of the fine-tuning roller 32, preventing position deviation during the movement of the longitudinal beam and improving the moving effect of the rotary cylinder 71.

[0062] When fine-tuning the position of the longitudinal beam, the second positioning plate 711 cooperates with the first positioning plate 72 to determine the lateral position of the longitudinal beam; after the position is determined, the second positioning detection mechanism 6 cooperates with the fine-tuning roller group 3 to determine the longitudinal position of the longitudinal beam, so that it finally matches the gripping position of the robot, replacing the original method of manually placing the longitudinal beam on the transport trolley, saving time and effort, reducing labor, improving efficiency, and maximizing profits.

[0063] When the present invention is in use, the longitudinal beam after stamping is moved to the roller surface of the conveying roller group 1 through the front moving roller group, and is initially positioned by the first infrared detection mechanism 4 on the first positioning area 13 to determine that the longitudinal beam begins to enter the roller surface of the conveying roller group 1. At the same time, the travel distance of the longitudinal beam is calculated according to the detection time of the first infrared detection mechanism 4 on the first positioning area 13 and the rotation speed of the conveying roller 12, which is defined as L1; then the longitudinal beam continues to move, and the first infrared detection mechanism 4 on the second positioning area 14 is repositioned, and the travel distance of the longitudinal beam is calculated again, which is defined as L2; ​​then the longitudinal beam continues to move, and the first infrared detection mechanism 4 on the second positioning area 15 is finally positioned. When the first infrared detection mechanism 4 on the second positioning area 15 detects the longitudinal beam, the conveying roller 12 stops moving, and the final position of the longitudinal beam from the conveying roller group 1 is determined according to the measured values ​​of L1 and L2, the detection time of the first infrared detection mechanism 4 on the first positioning area 13 and the first infrared detection mechanism 4 on the second positioning area 14, and the rotation speed of the conveying roller 12.

[0064] After the longitudinal beam stops moving on the conveying roller group 1, the lifting plate 54 moves upward under the action of the lifting cylinder 53 to lift the longitudinal beam, and the roller 52 moves toward the flipping mechanism 2 along the track 16 under the drive of the servo motor. After moving a predetermined distance, the longitudinal beam is located above the first bearing part 221, the lifting plate 54 moves downward, and the longitudinal beam falls on the first bearing part 221. The lifting and moving mechanism 5 returns to the initial position and waits for the next longitudinal beam to move.

[0065] After the longitudinal beam falls on the first bearing part 221, the second cylinder 25 lifts the guide part 231 upward to achieve a vertical state, and the first cylinder 24 lifts the first bearing part 221 upward to achieve the longitudinal beam flipping toward the guide part 231. The longitudinal beam abuts against the guide part 231 and falls on the second bearing part 232 and the auxiliary bearing part 233. Then the second cylinder 25 drives the guide part 231 to move downward, and the guide part 231 returns to the initial position and tilts toward the side of the fine-tuning roller group 3. Under the action of gravity, the longitudinal beam slides onto the roller surface of the fine-tuning roller group 3.

[0066] After the longitudinal beam slides onto the roller surface of the fine-tuning roller group 3, the rotary cylinder 7 drives the second clamping plate 711 from a state inclined to one side of the fine-tuning roller 32 to a vertical state, and moves toward the direction of the first clamping plate 72. During the movement, the longitudinal beam is driven to abut against the surface of the first clamping plate 72; after abutting, the rotary cylinder 71 drives the second clamping plate 711 back to the initial position, and the fine-tuning roller 32 drives the longitudinal beam to move. Under the detection of the second positioning detection structure 6, when the infrared signal between the second infrared emitting end 61 and the second infrared receiving end 62 is blocked, the fine-tuning roller 32 stops moving, determines the final position of the longitudinal beam, and makes the longitudinal beam consistent with the grasping position of the manipulator, which is convenient for the manipulator to grasp. The present invention has a simple structure and adopts a flipping mechanism 2 to flip the longitudinal beam, which replaces the original operation method of manually flipping the longitudinal beam, thereby reducing labor intensity; the positioning mechanism 7 cooperates with the second positioning detection mechanism 6 to realize the final position determination of the longitudinal beam, thereby improving the success rate of the robot's grasping, and also making the longitudinal beam meet the transportation requirements of the transport trolley. The positioning process is simple and efficient, thereby improving work efficiency.

[0067] To sum up, the longitudinal beam flipping and positioning device provided by the present invention has a simple structure, saves time and effort, and can flip and position the longitudinal beam after stamping, replacing the original manual operation method of flipping the longitudinal beam, thereby reducing the risk of operation, improving work efficiency, and reducing labor costs.

[0068] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A longitudinal beam flipping and positioning device, characterized in that: It comprises a conveying roller group, a turning mechanism arranged on one side of the conveying roller group, and a fine-tuning roller group arranged on the other side of the turning mechanism; The conveying roller group is provided with a first positioning detection mechanism, and the bottom of the conveying roller group is provided with a lifting and moving mechanism, and the lifting and moving mechanism is used to move the longitudinal beam on the conveying roller group after it stops moving to the turning mechanism; The turning mechanism comprises a turning frame, a first turning plate and a second turning plate are rotatably mounted on the top of the turning frame, the first turning plate is located on a side close to the conveying roller group, the second turning plate is located on a side close to the fine-tuning roller group, the first turning plate is hinged to a first cylinder, the first cylinder is hinged to the turning frame, the second turning plate is hinged to a second cylinder, and the second cylinder is hinged to the turning frame; The first flap includes a first bearing portion arranged horizontally, one end of the first bearing portion close to the conveying roller group vertically extends upward to form a blocking portion, and the bottom of the first bearing portion is hinged to the first cylinder; The second flap includes a guide portion, the guide portion is arranged obliquely close to the side of the fine-tuning roller group, and one end of the guide portion close to the first flap vertically extends upward to form a second bearing portion, and the two outer sides of the guide portion are respectively fixedly connected with auxiliary bearing portions; The fine-tuning roller group is provided with a second positioning detection mechanism and a positioning mechanism, and the positioning mechanism is used together with the second positioning detection mechanism to determine the final position of the longitudinal beam; The fine-tuning roller group includes a second frame and a plurality of fine-tuning rollers rotatably mounted on the second frame, and the fine-tuning rollers are drivingly connected to the second power device; The second positioning detection mechanism is fixedly mounted on the second frame, and the second positioning detection mechanism includes a second infrared transmitting end and a second infrared receiving end used in conjunction with the second infrared transmitting end; A locking mechanism is fixedly installed on the inner side of the second frame; The positioning mechanism comprises a rotary cylinder coaxially arranged with the fine-tuning roller, and a first positioning plate installed on the inner side of the second frame, wherein the rotary cylinder and the first positioning plate are both located on the second frame away from the flipping mechanism; The first clamping plate is threadedly connected to the second frame via a connecting rod; A second retaining plate is fixedly connected to the outer side of the piston rod of the rotary cylinder, and the initial position of the second retaining plate is set obliquely close to the side of the fine-tuning roller; A guide mechanism is fixedly mounted on the second frame, the guide mechanism comprising two guide rods coaxially arranged with the fine-tuning roller, the two guide rods are respectively arranged on both sides of the rotary cylinder, and guide plates are slidably arranged on the two guide rods; The guide plate is provided with a through hole for slidingly cooperating with the piston rod of the rotary cylinder. Two annular blocks are fixedly arranged on the piston rod of the rotary cylinder. The two annular blocks are respectively arranged on both sides of the guide plate.

2. The longitudinal beam flipping and positioning device according to claim 1, characterized in that: The conveying roller group includes a first frame and a plurality of conveying rollers rotatably mounted on the first frame, and the conveying rollers are drivingly connected to a first power device; The first frame is equidistantly arranged in a first positioning area, a second positioning area and a third positioning area along the longitudinal beam movement direction, and the first positioning detection mechanism is arranged on the first frame located in the first positioning area, the second positioning area and the third positioning area; The first positioning detection mechanism includes a first infrared transmitting end and a first infrared receiving end used in conjunction with the first infrared transmitting end.

3. The longitudinal beam flipping and positioning device according to claim 2, characterized in that: There are two lifting and moving mechanisms, and the two lifting and moving mechanisms are respectively arranged between the first positioning area and the second positioning area, and between the second positioning area and the third positioning area.

4. The longitudinal beam flipping and positioning device according to claim 1, characterized in that: The lifting and moving mechanism comprises a moving base, a roller driven by a servo motor is arranged on the outer side of the bottom of the moving base, a lifting cylinder is fixedly installed on the top of the moving base, and a lifting plate is fixedly installed on the piston rod of the lifting cylinder.

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