A steering device for a forklift truck frame conveyor

Abstract

The present application relates to the technical field of conveying machinery, and specifically discloses a steering device for conveying a forklift frame, comprising a bearing unit, a support, a visual control module and a conveying translation mechanism. The bearing unit is raised and lowered by a pneumatic cylinder and rotates by self-locking through a motor-driven worm and gear pair. The conveying translation mechanism is provided with a synchronous movable displacement structure and multiple sets of conveying rollers, and the front end thereof is provided with a material guiding structure and a limiting assembly. The material guiding structure drives the carrier to extend and retract through a pneumatic cylinder and provides frictional traction force by using a motor and a transmission belt; the limiting assembly drives a screw mechanism by a motor to control the lifting and lowering of a clamping plate. In operation, the material guiding structure is extended, the limiting assembly clamping plate is lifted to form a hooking point, and the frame is actively pulled onto the conveying rollers. After the frame is in place, the clamping plate remains in the lifted state to constrain the frame, and the bearing unit drives the whole to raise and turn. The present application solves the problems of automatic receiving and accurate steering of the frame and has the advantages of strong adaptability and stable operation.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of conveying machinery, in particular to a turning device for conveying a forklift frame. BACKGROUND

[0002] In the production and assembly process of a forklift frame, the frame needs to be transferred between multiple workstations such as welding, machining, spraying, and final assembly. Due to the layout restrictions and process requirements of the workshop, the frame frequently needs to be angle-switched (e.g., 90° or 180° turning) on the conveying line to link different direction conveying sections or align with subsequent workstations.

[0003] At present, Chinese Patent Application No. CN202321677167.2 discloses a turning device for conveying a forklift frame, which includes a conveying drum line, the conveying drum line includes a fixedly installed support frame, the support frame is installed with two groups of conveying mechanisms for conveying the forklift frame to move along the X direction, the pneumatic lifting mechanism is arranged below the conveying drum line, the pneumatic lifting mechanism is installed with a turning conveying mechanism for conveying the forklift frame to move along the Y direction, when the pneumatic lifting mechanism is lifted, the turning conveying mechanism is higher than the conveying mechanism, and the turning conveying mechanism works. By setting the bidirectional switchable conveying mechanism, the frame of the forklift can be transported on the conveying mechanism while being transported in different directions by switching the direction, realizing the function of multiple direction transportation of one machine.

[0004] However, the device of the prior art generally adopts a passive receiving mode, lacks active guidance and positioning ability for the frame, leading to deviation in the handover; secondly, for driving and turning of heavy frames, only relying on surface friction is easy to cause slipping or shifting, which has instability and safety hazards; in addition, the structure and function of the device are fixed, and it is difficult to flexibly adapt to frames of different specifications, and the degree of flexibility is insufficient, which restricts the adaptability and efficiency of the production line. SUMMARY

[0005] The present application aims to provide a turning device for conveying a forklift frame to solve the problems raised in the background art.

[0006] In order to achieve the above object, the present application adopts the following technical scheme: a forklift frame conveying steering device, comprising a bearing unit, a support, a visual control module and a conveying translation mechanism, the top of the bearing unit is fixedly connected with the support, the front side of the support is provided with the visual control module, and the bottom of the visual control module is fastened with the bearing unit, which is used for identifying the position of the frame and controlling the displacement action of the whole device; the top side of the support is fixedly connected with the conveying translation mechanism, so as to realize the accurate receiving, positioning and sending of the frame on the device; the conveying translation mechanism comprises two columns fixed on the top of the support on the left and right sides, the top of the column on the left side is fastened with a first displacement structure, and the top of the column on the right side is fastened with a second displacement structure, the bottom rear side of the first displacement structure and the second displacement structure is fastened with the support, and not less than six groups of conveying rollers are rotatably connected between the first displacement structure and the second displacement structure, the upper front side of the first displacement structure is fastened with a first material guide structure, and the upper front side of the second displacement structure is fastened with a second material guide structure.

[0007] Preferably, the structure and size of the first displacement structure and the second displacement structure are the same, and they are arranged in a left-right symmetrical manner in the middle of the support, and the structure and size of the first material guide structure and the second material guide structure are the same, which ensures the synchronous and balanced action of the two sides of the frame.

[0008] Preferably, the bearing unit comprises a base, the inside of the base is connected with a first air cylinder on the middle side, and the top output shaft of the first air cylinder is connected with the support, which is used for driving the support 13 and all components on it to lift as a whole; the bottom of the support is provided with a guide rod on the left and right sides, and the two guide rods are inserted and slide on the top side of the base, so as to ensure the stability during lifting; the top right side of the support is locked and fixed with a first motor, the front output end of the first motor is connected with a worm, and the end of the worm away from the first motor is rotatably connected with the support, the left side of the worm is engaged and driven by a worm gear, the bottom of the worm gear is rotatably connected with the top center of the support, and the top middle side of the worm gear is fixedly connected with a turntable, the top of the turntable is fixed with the support, and the worm and the worm gear can be driven by the first motor to realize the accurate rotation of the turntable and all mechanisms above it in the horizontal plane.

[0009] Preferably, the first displacement structure comprises a strip-shaped frame fixed with the stand in the middle of the bottom, a backing plate is arranged on the rear side of the middle of the bottom of the strip-shaped frame, a second motor is locked and fixed on the front side of the backing plate, a rotating wheel is connected with the left side output end of the second motor, a pull rope is wound on the outer surface of the rotating wheel, a first guide wheel and a second guide wheel are rotatably connected with the left rear part and the front part of the strip-shaped frame respectively, a positioning wheel is arranged below the first guide wheel and rotatably connected with the right middle part of the backing plate, a displacement frame is slidably connected with the top of the strip-shaped frame, the pull rope on the outer surface of the rotating wheel has two end extension parts: the extension part at the rear end passes through the bottom rear side of the positioning wheel and the top rear side of the first guide wheel in sequence, and the end part position of the extension part is connected with the left front side of the displacement frame; the extension part at the front end passes through the front side of the second guide wheel, and the end part position of the extension part is connected with the left rear side of the displacement frame; the rotating wheel is driven to wind or unwind the pull rope by the forward and reverse rotation of the second motor, so as to control the displacement frame to slide back and forth along the strip-shaped frame, thereby driving the conveying roller and the material guiding structure mounted thereon to move synchronously, so as to contact the position close to the vehicle frame, and facilitate the transfer and conveying of the vehicle frame.

[0010] Preferably, the inside of the displacement frame is hollow to reduce the weight, and positioning pins are arranged on the left front and rear sides of the left part of the displacement frame, and the two positioning pins are connected with the two ends of the pull rope respectively to ensure the reliability of the transmission of the pulling force.

[0011] Preferably, the first material guiding structure comprises a bin seat fastened to the front side of the first displacement structure, a third motor is locked and fixed on the left front side of the bin seat, a first rotating roller is connected with the right side output end of the third motor, the first rotating roller is connected to the front middle side inside the bin seat, a second air cylinder is locked and fixed on the bottom rear side of the bin seat, a carrier is connected with the front output shaft of the second air cylinder and slidably connected inside the bin seat, a second rotating roller is rotatably connected with the rear middle side of the carrier, and a third rotating roller is rotatably connected with the top front side of the carrier, a limiting assembly is locked and fixed on the front part of the carrier, a fourth rotating roller is rotatably connected with the rear upper side inside the bin seat, and a fifth rotating roller is rotatably connected with the rear middle side inside the bin seat, the outer surfaces of the first rotating roller, the fifth rotating roller, the fourth rotating roller, the third rotating roller and the second rotating roller are sequentially transmission-connected with a transmission belt, and the transmission belt is in a closed shape; the first rotating roller is driven by the third motor, so that the transmission belt drives the entire transmission circuit to operate, and the carrier is driven to move back and forth by the extension and retraction of the second air cylinder, thereby changing the path of the transmission belt to form an extendable and retractable movable arm for actively contacting and providing power when the vehicle frame is input or output, or retracting to avoid obstacles.

[0012] Preferably, longitudinal slots are arranged on the left and right sides of the inner wall of the bin seat, and the left and right sides of the carrier are respectively inserted and slid inside the two slots to ensure the straightness and stability of the movement of the carrier; the first rotating roller and the fifth rotating roller are located at the same horizontal height position, and the third rotating roller and the fourth rotating roller are located at the same horizontal height position, so that the path of the transmission belt changes smoothly when the carrier moves.

[0013] Preferably, the limiting assembly comprises a positioning frame fixedly connected with the carrier on the left and right rear parts, the inner thread slide blocks are slidably connected to the left and right front parts of the positioning frame, the screw rods are threadedly connected to the inner thread slide blocks, the bottom frame is fixedly connected to the lower middle part of the front part of the positioning frame, the belt pulley bodies are connected to the front ends of the screw rods, the fourth motor is fixedly connected to the bottom of the bottom frame, the clamping plates are rotatably connected to the top parts of the inner thread slide blocks, the supporting frames are rotatably connected to the middle parts of the left and right sides of the clamping plates, and the bottom sides of the front ends of the supporting frames are rotatably connected to the bottom frame.

[0014] Preferably, the positioning frame is provided with two through grooves in the top part, and the two inner thread slide blocks are slidably arranged in the through grooves, respectively.

[0015] Compared with the prior art, the present application has the following advantages:

[0016] The present application integrates a visual control module, an actively extendable material guiding structure and a limiting assembly to form an intelligent receiving system, the visual control module can pre-identify the posture and position of the vehicle frame to provide accurate guidance for subsequent actions, the material guiding structure can be extended and provide traction friction force by using a transmission belt, and the limiting assembly can actively lift the clamping plate to form an effective mechanical hooking point, the three components work together to actively and stably pull the vehicle frame from the previous work station to the conveying roller of the present device, solve the problems of inaccurate positioning, poor connection and low automation degree in the traditional passive pushing or lifting mode, significantly reduce manual intervention, and improve the stability and continuity of the production rhythm.

[0017] The present application realizes the wide adaptation of the frame size and process requirements through the multi-stage adjustable mechanism, the material guiding structure can adjust the extension length through the second cylinder, the limiting assembly can control the lifting angle and timing of the clamping plate through the fourth motor, the bearing unit can realize lifting and multi-angle rotation at the same time, and the action parameters can be programmed and set according to different frame models, incoming material directions and next process positions, therefore, a single device can flexibly complete the receiving of frames of various specifications, turning at different angles and transferring to different positions downstream, without the need of modifying hardware or adding special machines for each change, thereby significantly improving the overall flexibility of the production system and reducing the cost of production line adjustment and equipment investment.

[0018] When the frame is pulled, the lifted clamping plate provides upward lifting and forward hooking force, and the friction force of the transmission belt in the forward direction forms a composite traction, effectively overcoming the risk of slipping due to a small contact surface, ensuring smooth transfer of heavy frames; during turning, the clamping plate in the raised state continuously restricts the frame from below, combined with the support of the conveying roller, forming a stable anti-slip mechanism; in addition, the turning drive of the bearing unit adopts a worm and gear pair with mechanical self-locking characteristics, not only stable transmission and accurate angle control, but also ensuring that the turning posture of the frame is reliably locked in any shutdown state, fundamentally eliminating the safety risks and quality defects caused by slipping or turning. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a structural schematic view of the present application;

[0020] Figure 2 is a structural schematic view of the present application;

[0021] Figure 3 is a front view of the bearing unit of the present application;

[0022] Figure 4 is a structural schematic view of the present application;

[0023] Figure 5 is a structural schematic view of the first material guiding structure of the present application;

[0024] Figure 6 is a structural schematic view of the present application Figure 5 is a front view after the removal of the warehouse seat and the third motor;

[0025] Figure 7 is a structural schematic view of the limiting assembly of the present application.

[0026] In the figure: bearing unit-1, support-2, visual control module-3, conveying translation mechanism-4, base-11, first cylinder-12, support-13, first motor-14, worm-15, worm gear-16, turntable-17, stand-41, first displacement structure-42, second displacement structure-43, conveying roller-44, first material guide structure-45, second material guide structure-46, gasket-420, strip frame-421, second motor-422, rotating wheel-423, pull rope-424, first guide wheel-425, second guide wheel-426, displacement frame-427, warehouse seat-451, third motor-452, first rotating roller-453, second cylinder-454, carrier-455, second rotating roller-456, third rotating roller-457, limiting assembly-458, fourth rotating roller-459, fifth rotating roller-4510, transmission belt-4511, positioning frame-4581, internal thread sliding block-4582, screw rod-4583, base frame-4584, pulley body-4585, fourth motor-4586, clamping plate-4587, support frame-4588. DETAILED DESCRIPTION

[0027] In order to further explain the technical scheme of the present application, the following will be described in detail through specific embodiments.

[0028] Please refer to Figure 1 , the present application provides a forklift frame conveying steering device, including bearing unit 1, support 2, visual control module 3 and conveying translation mechanism 4, bearing unit 1 top fixedly connected with support 2 as rigid overpass platform, support 2 front side is provided with visual control module 3, and visual control module 3 bottom is fastened with bearing unit 1, visual control module 3 includes industrial camera and fill light, for shooting to identify the profile, key hole or identification of forklift frame about to enter the device or on the device, the image information is fed back to the general control system, to calculate the accurate position and angle deviation of the frame, so as to generate control instruction;Support 2 top side fixedly connected with conveying translation mechanism 4, to realize the accurate receiving, positioning and flexible steering conveying of frame on the device.

[0029] Please refer to Figure 1 , Figure 2 and Figure 3The application provides a forklift frame conveying steering device, and the bearing unit 1 comprises a base 11, a first air cylinder 12 is connected to the inside of the middle side of the base 11, and the top output shaft of the first air cylinder 12 is connected with a support platform 13, which is used for driving the support platform 13 and all components on the support platform 13 to lift integrally; guide rods are arranged on the bottom of the support platform 13 and on the left and right sides, and the two guide rods are inserted and slide on the top side of the base 11, so as to ensure the stability during lifting; a first motor 14 is fixedly locked on the top right side of the support platform 13, a worm 15 is connected with the front output end of the first motor 14, one end of the worm 15 away from the first motor 14 is rotationally connected with the support platform 13, a worm wheel 16 is meshed and driven on the left side of the worm 15, the bottom of the worm wheel 16 is rotationally connected with the top center of the support platform 13, a rotating disc 17 is fixedly connected to the top middle side of the worm wheel 16, and the top of the rotating disc 17 is fixed with a support 2; the first motor 14 drives the worm 15 and the worm wheel 16, a transmission pair with self-locking function is formed, the rotation of the first motor 14 is finally converted into the accurate rotation of the support 2 and all mechanisms above the support 2 in the horizontal plane, and the steering in any angle in the range of 0-360 degrees is realized, and the self-locking characteristic of the worm and worm wheel pair ensures that the steering angle can be reliably maintained in the power-off state.

[0030] Please refer to Figure 1 、 Figures 4-7 The application provides a forklift frame conveying steering device, and the conveying translation mechanism 4 comprises two vertical columns 41 fixed on the top left and right sides of the support 2, the top of the vertical column 41 on the left side is fastened with a first displacement structure 42, the top of the vertical column 41 on the right side is fastened with a second displacement structure 43, the first displacement structure 42 and the second displacement structure 43 are the same in structure and size, and are arranged in a left-right symmetrical manner in the middle part of the support 2, the bottom rear side of the first displacement structure 42 and the second displacement structure 43 is fastened with the support 2, and not less than six groups of conveying rollers 44 are rotationally connected between the first displacement structure 42 and the second displacement structure 43; when the frame is placed on the conveying rollers 44, the movement of the frame can be realized by driving several rollers by external power (such as a motor).

[0031] The first displacement structure 42 is fastened with a first material guiding structure 45 on the front upper side, the second displacement structure 43 is fastened with a second material guiding structure 46 on the front upper side, the first material guiding structure 45 and the second material guiding structure 46 are the same in structure and size, and the first material guiding structure 45 and the second material guiding structure 46 are used as auxiliary power arms which can be actively extended and retracted.

[0032] The first displacement structure 42 comprises a strip-shaped frame 421 fixed to the column 41 at the middle of the bottom, a pad 420 is arranged at the middle of the back of the bottom of the strip-shaped frame 421, a second motor 422 is locked and fixed to the front side of the pad 420, a rotating wheel 423 is connected to the left side output end of the second motor 422, a pull rope 424 is wound around the outer surface of the rotating wheel 423, a first guide wheel 425 and a second guide wheel 426 are rotatably connected to the left rear and front of the strip-shaped frame 421 respectively, a positioning wheel is arranged below the first guide wheel 425, and the right middle part of the positioning wheel is rotatably connected to the pad 420, and a hollow displacement frame 427 is slidably connected to the top of the strip-shaped frame 421, so as to reduce the weight;

[0033] The pull rope 424 on the outer surface of the rotating wheel 423 has two end extension parts, after being led out at both ends: the extension part at the rear end passes through the bottom rear side of the positioning wheel and the top rear side of the first guide wheel 425 in sequence, and the end position of the extension part is connected to the positioning bolt on the left front side of the displacement frame 427; the extension part at the front end passes through the front side of the second guide wheel 426, and the end position of the extension part is connected to the positioning bolt on the left rear side of the displacement frame 427; when the second motor 422 drives the rotating wheel 423 to rotate in one direction to wind one end of the pull rope 424, while the other end is released, the displacement frame 427 slides back and forth along the strip-shaped frame 421 under the traction of the pull rope 424, since the second displacement structure 43 adopts the same driving mode and is synchronously controlled with the first displacement structure 42, the front and rear positions of the support points on the left and right sides can be adjusted synchronously, so as to change the positions of all the conveying rollers 44 to the input turning position close to the vehicle frame, thereby facilitating the loading and transferring of the forklift frame.

[0034] The first material guiding structure 45 comprises a bin seat 451 fastened to the front side of the first displacement structure 42, the left front side of the bin seat 451 is locked and fixed with a third motor 452, the right side output end of the third motor 452 is connected with a first rotating roller 453, the first rotating roller 453 is connected to the front middle side inside the bin seat 451, the bottom rear side of the bin seat 451 is locked and fixed with a second air cylinder 454, the front output shaft of the second air cylinder 454 is connected with a carrier 455, the carrier 455 is slidably connected inside the bin seat 451, the rear middle side of the carrier 455 is rotatably connected with a second rotating roller 456, the top front side of the carrier 455 is rotatably connected with a third rotating roller 457, the rear upper side inside the bin seat 451 is rotatably connected with a fourth rotating roller 459, the rear middle side inside the bin seat 451 is rotatably connected with a fifth rotating roller 4510, the outer surfaces of the first rotating roller 453, the fifth rotating roller 4510, the fourth rotating roller 459, the third rotating roller 457 and the second rotating roller 456 are sequentially connected with a transmission belt 4511, and the transmission belt 4511 is in a closed shape; the first rotating roller 453 is driven by the third motor 452, so that the transmission belt 4511 sequentially drives the fifth rotating roller 4510, the fourth rotating roller 459, the third rotating roller 457 and the second rotating roller 456 to rotate;

[0035] When the second cylinder 454 extends, the carrier 455 moves forward, driving the third roller 457 and the second roller 456 to move forward, so that the transmission belt 4511 forms a forward protruding loop between the fourth roller 459 and the third roller 457. The protruding loop (i.e. the upper working surface of the transmission belt 4511) can be in contact with the bottom surface of the frame entering the device, and the frame is actively pulled onto the conveying roller 44 by friction; conversely, when the frame needs to be sent out, the material guiding structure can also be extended forward to push the frame out to the downstream conveying line; after the handover is completed, the second cylinder 454 is retracted, the material guiding structure is retracted as a whole, and the space is cleared to avoid interfering with the rotating action of the bearing unit 1. The limiting assembly 458 is installed at the front end of the carrier 455 and is used for lateral positioning of the frame during turning.

[0036] Wherein, the inner wall of the warehouse seat 451 is provided with longitudinal slots on the left and right sides, and the left and right sides of the carrier 455 are respectively inserted and slide in the two slots to ensure the straightness and stability of the carrier movement; the first roller 453 and the fifth roller 4510 are located at the same horizontal height position, and the third roller 457 and the fourth roller 459 are located at the same horizontal height position, so that the path of the transmission belt 4511 changes smoothly when the carrier 455 moves.

[0037] Wherein, the limiting assembly 458 includes a positioning frame 4581 fixedly connected to the left and right sides of the carrier 455, two through slots are formed in the top of the positioning frame 4581, and two internal threaded slides 4582 are respectively penetrated and slid in the two through slots, so that the internal threaded slides 4582 can be stably displaced longitudinally to prevent deflection; the internal threaded slides 4582 are threadedly connected with screw rods 4583, the bottom frame 4584 is fixedly connected to the front middle and lower sides of the positioning frame 4581, the screw rods 4583 are connected with belt pulley bodies 4585 at the front ends, and the other ends of the belt pulley bodies 4585 are connected with the rear output shafts of the fourth motor 4586, and the fourth motor 4586 is fixedly connected with the bottom frame 4584, so that the fourth motor 4586 can drive the two screw rods 4583 to rotate synchronously;

[0038] The top of the internal threaded slide 4582 is rotatably connected with a clamping plate 4587, the clamping plate 4587 is rotatably connected with a L-shaped support frame 4588 at the middle of the left and right sides, the bottom sides of the front ends of the two support frames 4588 are rotatably connected with the bottom frame 4584, so as to provide necessary lever stroke and structural strength, and since the middle of the clamping plate 4587 is hinged with the top end of the support frame 4588 and the bottom end of the support frame 4588 is hinged with the bottom frame 4584, the clamping plate 4587 will be forced to rotate around the hinge point of the clamping plate 4587 and the support frame 4588;

[0039] When the fourth motor 4586 drives the two screw rods 4583 to rotate synchronously, the two internally threaded sliders 4582 are displaced synchronously in the same direction, the lifting or lowering of the clamping plate 4587 is realized, the clamping plate 4587 is lifted after entering the input of the frame to be clamped on the frame, the frame is pulled out of the previous station, the problem that the contact surface between the conveying part and the frame is small and the frame is not easy to be moved out is prevented.

[0040] The fork truck frame conveying steering device provided by the application is characterized in that, during work, first, a visual control module 3 is used to identify and position the incoming frame, and a conveying translation mechanism 4 is used to complete flexible receiving and accurate positioning; then, a bearing unit 1 is used to perform lifting and accurate steering; finally, the conveying translation mechanism 4 is used to stably send out the frame, and the whole process is automatically cycled.

[0041] First, the second cylinder 454 in the first guide structure 45 and the second guide structure 46 is in a retracted state, the carrier 455 and the transmission belt 4511 are retracted into the warehouse seat 451, and the clamping plate 4587 of the limiting assembly 458 is in a lowered state, so as to give way to the passage for the frame to enter; when the upstream conveying line conveys the fork truck frame to the front of the device, the visual control module 3 is started, an industrial camera of the visual control module 3 photographs the frame image, identifies the contour and key features, and feeds back the position and angle data to the general control system, and the general control system calculates accurate alignment instructions according to the visual positioning results.

[0042] Second, the general control system first controls the first motor 14 of the bearing unit 1 to drive the worm 15 and the worm gear 16 to drive the support 2 and the conveying translation mechanism 4 above to rotate slightly to align with the direction of the frame; then, the piston rod of the second cylinder 454 of the first guide structure 45 and the second guide structure 46 is extended to push the carrier 455 to move forward, so that the transmission belt 4511 forms a front convex driving ring segment; at the same time, the fourth motor 4586 of the limiting assembly 458 on both sides is started to drive the two screw rods 4583 to rotate synchronously through the belt pulley body 4585, the two internally threaded sliders 4582 are displaced synchronously upward in the through groove of the positioning frame 4581, and the straight-line motion is converted into the action of the front end of the clamping plate 4587 being tilted upward through the linkage mechanism composed of the support frame 4588, the tilted front end of the clamping plate 4587 is inserted into or abuts against the bottom of the frame, and a reliable mechanical hooking or bearing point is formed; then, the piston rod of the second cylinder 454 is kept in an extended state, and the fourth motor 4586 drives the clamping plate 4587 to keep tilting, so that the clamping plate 4587 hooks the frame; then, the piston rod of the second cylinder 454 is slowly retracted to make the clamping plate 4587 pull the frame to move in the direction close to the conveying roller 44, so that the frame is pulled out of the previous station; then, the third motor 452 is controlled to be started to drive the transmission belt 4511 to rotate, so as to assist in guiding the frame to the conveying roller 44 of the device.

[0043] Third, when the frame is completely pulled to the predetermined position on the conveying roller 44, the clamping plate 4587 remains in the raised state, continuously restraining the frame from below, then the first motor 14 drives the self-locking worm and gear pair according to the instruction, driving the entire upper structure (including the restrained frame) to rotate smoothly and accurately to the required target angle, completing the turning process.

[0044] Fourth, after the turning is completed, the device overall height is adjusted by the first cylinder 12 to place the frame at the height of the downstream conveying line or target work station; first, the fourth motor 4586 of the limiting assembly 458 reverses, driving the inner threaded sliding block 4582 to move downward synchronously, through the connecting rod mechanism to make the raised clamping plate 4587 put down, releasing the restraint on the frame; then, the third motor 452 of the first and second material guiding structures 45 and 46 operates, driving the transmission belt 4511 to push the frame smoothly to the downstream conveying line; finally, all the executing components are reset: the second cylinder 454 retracts, driving the material guiding structure and the limiting assembly to retreat to the initial position as a whole; the carrying unit 1 rotates to the initial angle, waiting for receiving the next frame.

[0045] The above only describes the preferred examples of the present application, and is not used to limit the present application, although the present application is described in detail with reference to the foregoing examples, for those skilled in the art, the technical solutions recorded in the foregoing examples can still be modified, or some technical features can be replaced equivalently. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A forklift truck frame conveying turning device characterized by comprising: Including the bearing unit (1), the bearing unit (1) top fixedly connected with support (2), the support (2) front side is provided with visual control module (3), and visual control module (3) bottom is fastened with bearing unit (1), the support (2) top side fixedly connected with conveying translation mechanism (4), the conveying translation mechanism (4) includes two upright columns (41) fixed on the left and right sides of the top of support (2), the upright column (41) top in the left side is fastened with first displacement structure (42), the upright column (41) top in the right side is fastened with second displacement structure (43), the bottom rear side of first displacement structure (42) and second displacement structure (43) is fastened with support (2), and first displacement structure (42) and second displacement structure (43) are rotatably connected with not less than six groups of conveying roller (44) between them, the first displacement structure (42) front side upper part fastening has first material guide structure (45), and the second displacement structure (43) front side upper part fastening has second material guide structure (46); The first displacement structure (42) includes the strip frame (421) fixed with the upright column (41) in the middle bottom, the strip frame (421) bottom middle rear side is provided with the backing plate (420), the backing plate (420) front side is locked and fixed with the second motor (422), the second motor (422) left side output end is connected with the rotating wheel (423), the rotating wheel (423) outer surface is wound with the pull rope (424), the strip frame (421) left side rear part and front part are rotatably connected with first guide pulley (425) and second guide pulley (426) respectively, the first guide pulley (425) below is provided with the positioning wheel, and the positioning wheel right side middle part is rotatably connected with the backing plate (420), the strip frame (421) top is slidably connected with displacement frame (427), the rotating wheel (423) outer surface pull rope (424) has two end extensions, the extension in the rear end is sequentially through the bottom rear side of positioning wheel and the top rear side of first guide pulley (425), and the end position of the extension is connected with the left front side of displacement frame (427);The extension in the front end is through the front side of second guide pulley (426), and the end position of the extension is connected with the left rear side of displacement frame (427). The first material guiding structure (45) comprises a bin seat (451) fastened to the front side of the first displacement structure (42), the left front side of the bin seat (451) is locked and fixed with a third motor (452), the right side output end of the third motor (452) is connected with a first rotating roller (453), the first rotating roller (453) is connected to the inside front middle side of the bin seat (451), the bottom rear side of the bin seat (451) is locked and fixed with a second air cylinder (454), the front output shaft of the second air cylinder (454) is connected with a carrier (455), the carrier (455) is slidingly connected to the inside of the bin seat (451), the rear middle side of the carrier (455) is rotatably connected with a second rotating roller (456), and the top front side of the carrier (455) is rotatably connected with a third rotating roller (457), the front side of the carrier (455) is locked and fixed with a limiting assembly (458), the inside rear upper side of the bin seat (451) is rotatably connected with a fourth rotating roller (459), and the inside rear middle side of the bin seat (451) is rotatably connected with a fifth rotating roller (4510), the outer surfaces of the first rotating roller (453), the fifth rotating roller (4510), the fourth rotating roller (459), the third rotating roller (457) and the second rotating roller (456) are sequentially transmissionally connected with a transmission belt (4511), and the transmission belt (4511) is in a closed shape; The limiting assembly (458) comprises a positioning frame (4581) locked and fixed with the carrier (455) on the left and right rear sides, the inside of the left and right front sides of the positioning frame (4581) is slidingly connected with an internal thread sliding block (4582), the inside of the two internal thread sliding blocks (4582) is threadedly connected with a screw rod (4583), the front middle lower side of the positioning frame (4581) is locked and fixed with a base frame (4584), the front end of the two screw rods (4583) is connected with a belt pulley body (4585), the inside of the other end of the two belt pulley bodies (4585) is connected with the rear side output shaft of a fourth motor (4586), the bottom of the fourth motor (4586) is locked and fixed with the base frame (4584), the top of the two internal thread sliding blocks (4582) is rotatably connected with a clamping plate (4587), the middle parts of the left and right sides of the clamping plate (4587) are rotatably connected with a support frame (4588), and the front end bottom sides of the two support frames (4588) are rotatably connected with the base frame (4584).

2. The steering device for a forklift truck frame transport according to claim 1, characterized by: The first displacement structure (42) and the second displacement structure (43) are the same in structure and size, and are symmetrically arranged in the middle of the support (2), the first material guiding structure (45) and the second material guiding structure (46) are the same in structure and size.

3. The steering device for a forklift truck frame transport according to claim 1, wherein: The bearing unit (1) includes a base (11), a first air cylinder (12) is connected in the inside of the base (11), and the output shaft at the top of the first air cylinder (12) is connected with a support table (13), guide rods are arranged on the bottom of the support table (13) and on the left and right sides thereof, the two guide rods are inserted and slide on the top side of the base (11), a first motor (14) is locked and fixed on the top right side of the support table (13), a worm (15) is connected with the front output end of the first motor (14), and the end, away from the first motor (14), of the worm (15) is rotationally connected with the support table (13), a worm gear (16) is in meshing transmission on the left side of the worm (15), the bottom of the worm gear (16) is rotationally connected with the top center of the support table (13), a rotating disc (17) is fixedly connected with the top center of the worm gear (16), and the top of the rotating disc (17) is fixed with a support (2).

4. The steering apparatus for a forklift truck frame transport according to claim 1, wherein: The inside of the shifting frame (427) is hollow, and positioning pegs are arranged on the left front and back sides of the shifting frame (427), and the two ends of the positioning pegs are connected with the two ends of the pull rope (424) respectively.

5. The steering apparatus for a fork truck frame conveyor according to claim 1 wherein: The inner walls of the cartridge seats (451) are provided with slots on the left and right sides, and the left and right sides of the carrier (455) are respectively inserted and slide in the two slots.

6. The steering apparatus for a fork truck carriage as set forth in claim 1, wherein: The first rotating roller (453) and the fifth rotating roller (4510) are located at the same horizontal height position, and the third rotating roller (457) and the fourth rotating roller (459) are located at the same horizontal height position.

7. The steering apparatus for a fork truck carriage as set forth in claim 1, wherein: Two through grooves are formed in the top of the positioning frame (4581), two internal thread sliding blocks (4582) are respectively inserted and slide in the two through grooves, and the two supporting frames (4588) are both L-shaped.

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