Automatic guided vehicle (AGV) discharging mechanism

Abstract

The invention relates to the technical field of article conveying, in particular to an AGV discharging mechanism which comprises an AGV trolley, a conveying part, overturning parts, a driving part and a breaking part, the conveying part is fixedly arranged at the top of the AGV trolley, and the overturning parts are rotationally arranged on the front side and the rear side of the top of the conveying part. The overturning part is driven by the driving part to rotate, the overturning requirement in the article discharging process is met, when the bottom is about to make contact with a bracket, output rods of a set of electric telescopic rods correspondingly clamping the articles are recycled, a right-angle swing arm is driven to rotate upwards along the switching position of the right-angle swing arm and a positioning pin, and the articles are overturned. The right-angle swing arm rotates to drive the rodless air cylinder, the clamping rod, the clamping plates and a clamped object to rotate upwards together, so that the contact speed of the bottom of the object and the top of the bracket is reduced, the object is prevented from being damaged due to collision, the normal efficiency of clamping the object by the next group of clamping plates cannot be interfered, and the clamping efficiency is improved on the premise that the object is lightly placed. And a good clamping speed for the next group of articles is still ensured.

Description

Technical Field

[0001] The invention relates to the technical field of article conveying, and in particular to an AGV unloading mechanism. Background Art

[0002] AGV logistics cart refers to a transport vehicle equipped with electromagnetic or optical automatic navigation devices, which can travel along the specified navigation path and has safety protection and various transfer functions. It is a transport vehicle that does not require a driver in industrial applications and uses rechargeable batteries as its power source. Generally, its travel path and behavior can be controlled by a computer, or its travel path can be established using electromagnetic tracks. The electromagnetic tracks are attached to the floor, and the unmanned transport vehicle relies on the information brought by the electromagnetic tracks to move and act;

[0003] According to a Chinese patent with the authorization announcement number CN112499144B, a material unloading structure for an AGV logistics cart is disclosed. The goods are guided by a guide plate to prevent the goods from quickly colliding with the ground, thereby ensuring the safety of the goods. At the same time, the limit block can effectively prevent the goods from sliding on the support and falling, thereby ensuring the safety of the goods and not hindering the unloading process, making it more convenient to use. In fact, during the production of certain products, due to their appearance and processing conditions, they usually need to be inverted for processing. Therefore, after they are off the line, they usually need to be flipped and straightened. However, the above-mentioned AGV logistics cart unloading structure does not have the technical effect of flipping the unloaded items, and cannot meet the requirements for unloading materials that need to be flipped. For this reason, we propose an AGV unloading mechanism to solve the above-mentioned technical problems. Summary of the invention

[0004] The present invention provides the following technical solution: an AGV unloading mechanism, comprising:

[0005] AGV car;

[0006] The conveying part is fixedly arranged on the top of the AGV vehicle, and is used for conveying and unloading articles;

[0007] A turning part, rotatably arranged on the front and rear sides of the top of the conveying part, and the turning part is used for turning over the articles;

[0008] A driving part, fixedly arranged at the bottom of the conveying part and extending through the conveying part to the periphery of the top thereof, wherein the driving part is used to drive the flipping part;

[0009] The breaking part is arranged on the surface of the breaking part and is used for power control of the flipping part.

[0010] As a preferred solution of the present invention, the conveying unit includes:

[0011] There are four fixing rods, which are fixedly installed on the top of the AGV in a rectangular distribution;

[0012] Two brackets are fixedly mounted on the tops of the two fixing rods on the left and the right, respectively;

[0013] The conveying frame is fixedly mounted on the top of the two brackets in a front-to-back symmetrical manner;

[0014] The conveying rollers are rotatably installed between the front and rear conveying frame plates, and there are multiple conveying rollers, which are distributed at equal distances on the left and right sides.

[0015] As a preferred solution of the present invention, the flipping portion includes:

[0016] A U-shaped metal frame is movably located on the top of the AGV trolley and extends between the front and rear conveying frame plates, and the bottom of the U-shaped metal frame is penetrated by two square grooves distributed front and back;

[0017] The turning shaft is rotatably mounted between the front wall and the rear wall of the U-shaped metal frame;

[0018] A turning frame is fixedly mounted at the front end and the rear end of the turning shaft, and the number of the turning frames is two;

[0019] A positioning pin is fixedly mounted on a side of the front and rear flip frames that are away from each other, and two positioning pins are fixed on the same flip frame;

[0020] The arc groove is formed through the two ends of the opposite surfaces of the front and rear flip frames, and there are two arc grooves at any end of the flip frame, and the two arc grooves are concentric with the center of the positioning pin located on the same side thereof;

[0021] A right-angle swing arm is rotatably mounted on the outer wall of the positioning pin, and two through holes are formed through a side surface of the right-angle swing arm close to the flip frame, and the positions of the two through holes correspond to the positions of the arc grooves;

[0022] A rodless cylinder is fixedly mounted on a side of the right-angle swing arm away from the flip frame, and there are two of them, and the two rodless cylinders are respectively located at the periphery of the openings of the two through holes;

[0023] A clamping rod is slidably mounted inside the rodless cylinder, and the clamping rod movably passes through the through hole and the arc groove;

[0024] The clamping plate is fixedly mounted on the end of the clamping rod.

[0025] As a preferred solution of the present invention, the flipping portion further comprises:

[0026] The positioning groove is provided in the middle of the back of the front and rear flip frames;

[0027] A fixing plate, fixedly installed inside the positioning groove;

[0028] The first hinged column is fixedly mounted on both ends of a side of the fixed plate away from the turning frame;

[0029] An electric telescopic rod is hinged on the outer walls of the two first hinged columns respectively;

[0030] A second hinged column is fixedly mounted at a side end corner of the right-angle swing arm away from the flip frame, and an outer wall of the second hinged column is hinged to an end of an output rod of the electric telescopic rod;

[0031] The cylinder fixing seat is fixedly installed on the top of the AGV car in a front-to-back distribution;

[0032] The servo electric cylinder is fixedly installed inside the cylinder fixing seat, and the top of the output rod of the servo electric cylinder is fixedly connected to the bottom of the U-shaped metal frame.

[0033] As a preferred solution of the present invention, the driving unit includes:

[0034] Double-sided reduction motor, fixedly installed at the bottom of the double-sided reduction motor;

[0035] The synchronous wheel is fixedly mounted on the front and rear output shafts of the double-sided reduction motor;

[0036] The roller is rotatably mounted on the outer wall of the turning shaft and is located directly above the synchronous wheel. The outer wall of the roller is provided with two belt grooves distributed front and back, and the opening positions of the belt grooves correspond to the positions of the synchronous wheels one by one.

[0037] A synchronous belt is sleeved between the synchronous wheel and the belt groove. There are two synchronous belts, and the two synchronous belts are respectively movable through the front and rear square grooves.

[0038] As a preferred solution of the present invention, the dividing portion comprises:

[0039] The first keyway is provided at the front and rear ends of the roller;

[0040] A coupling sleeve, slidably mounted on the front end and the rear end of the outer wall of the tilting shaft;

[0041] A second keyway is provided on a side of the coupling sleeve close to the first keyway, the specification of the second keyway matches that of the first keyway, and the second keyway is engaged with the first keyway;

[0042] Torsion limiting grooves are provided at the front and rear of the outer wall of the tilting shaft;

[0043] The torsion limiting block is slidably mounted inside the torsion limiting groove, and the torsion limiting block is fixedly mounted on the inner wall of the coupling sleeve.

[0044] As a preferred solution of the present invention, the dividing portion further includes:

[0045] A push-pull block is located at the periphery of the coupling sleeve, a bearing hole is provided inside the push-pull block, and the coupling sleeve is rotatably connected to the bearing hole through a bearing;

[0046] Push-pull pins are fixedly mounted on the left and right sides of the push-pull block;

[0047] The positioning plates are fixedly installed on the front and rear walls of the U-shaped metal frame in a left-right distribution;

[0048] The path groove is penetrated and arranged on the opposite surfaces of the left and right positioning plates, and the outer wall of the push-pull pin is slidably connected with the inner wall of the path groove.

[0049] As a preferred solution of the present invention, a guide slope is provided at the mouth of the second keyway.

[0050] As a preferred solution of the present invention, the left and right side surfaces of the push-pull block are slidably connected to the inner side surfaces of the left and right positioning plates respectively.

[0051] As a preferred solution of the present invention, a U-shaped groove is provided on the top of the conveying frame, the U-shaped groove is located at the bottom of the flip axis, and the width of the U-shaped groove is greater than the diameter of the flip axis. A guide groove is provided in the middle of the inner side surface of the conveying frame, and the left and right walls of the guide groove are respectively slidably connected to the left and right outer walls of the U-shaped metal frame.

[0052] Compared with the prior art, the present invention has the following beneficial effects:

[0053] 1. In the present invention, the turning part is driven to rotate by the driving part to realize the turning demand in the process of unloading the objects, and when the bottom is about to touch the bracket, the output rod of a group of electric telescopic rods corresponding to the clamped objects is recovered, and the right-angle swing arm is driven to rotate upward along the transition position with the positioning pin. The rotation of the right-angle swing arm drives the rodless cylinder, the clamping rod, the clamping plate and the clamped objects to rotate upward together, thereby slowing down the contact speed between the bottom of the object and the top of the bracket, avoiding damage to the objects caused by impact, and will not interfere with the normal efficiency of the next group of clamping plates to clamp the objects. On the premise of ensuring that the objects are placed gently, a good clamping speed for the next group of objects is still guaranteed.

[0054] 2. In the present invention, the output rods of the front and rear two servo electric cylinders drive the U-shaped metal frame to move downward, pushing the flip shaft together with the roller downward, and the downward movement of the flip shaft drives the coupling sleeve, the push-pull block and the push-pull pin to move downward together, and the downward movement of the push-pull pin is also guided by the path groove, so that the push-pull pin slides along the inner wall of the path groove during the downward movement, further driving the push-pull block and the coupling sleeve to move together, so that the second key groove is separated from the first key groove, and the roller will not drive the front and rear flip frames to continue rotating after the outer wall of the flip shaft rotates, thereby reducing the load of the double-sided reduction motor, thereby achieving the purpose of saving power consumption.

[0055] 3. In the present invention, after the roller is moved downward until its bottom height is flush with the top height of the bracket, the unloaded items are directly transported to the left along the multiple brackets, and while the items pass through the middle position of the conveying frame, the top of the roller provides a supporting bridge for the items, thereby ensuring smooth transportation and unloading of the items. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] Figure 1 It is a structural schematic diagram of the present invention;

[0057] Figure 2 This is a schematic diagram of the bottom perspective structure of the conveying part of the present invention;

[0058] Figure 3 For the present invention Figure 2 A schematic diagram of the enlarged structure of part A;

[0059] Figure 4 It is a schematic diagram of the structure of the turning part and the driving part in the present invention;

[0060] Figure 5 It is a structural schematic diagram of the U-shaped metal frame in the present invention;

[0061] Figure 6 It is a structural schematic diagram of the roller in the present invention;

[0062] Figure 7 It is a schematic diagram of the structure of the flip axis in the present invention;

[0063] Figure 8 It is a structural schematic diagram of the turning frame in the present invention;

[0064] Fig. 9 It is a structural schematic diagram of the rodless cylinder and the clamping plate in the present invention;

[0065] Fig.10 It is a schematic structural diagram of the right-angle swing arm in the present invention;

[0066] Fig.11 It is a schematic diagram of the local structure of the roller in the present invention;

[0067] Fig.12 For the present invention Fig.11 A schematic diagram of the enlarged structure of part B;

[0068] Fig.13 It is a schematic diagram of the structure of the coupling sleeve in the present invention;

[0069] Fig.14 It is a structural schematic diagram of the conveying frame plate in the present invention;

[0070] Fig.15 For the present invention Fig.14 Schematic diagram of the enlarged structure of part C.

[0071] In the figure: 100, AGV trolley; 200, conveying part; 201, fixing rod; 202, bracket; 203, conveying frame plate; 2003, U-shaped groove; 204, conveying roller; 2004, guide groove; 300, turning part; 301, U-shaped metal frame; 3001, square groove; 302, turning axis; 303, turning frame; 304, positioning pin; 305, arc groove; 306, right-angle swing arm; 307, through hole; 308, rodless cylinder; 309, clamping rod; 3010, clamping plate; 3011, positioning groove; 3012, fixing plate; 3013, first Articulated column; 3014, electric telescopic rod; 3015, second articulated column; 3016, cylinder fixing seat; 3017, servo electric cylinder; 400, driving part; 401, bilateral reduction motor; 402, synchronous wheel; 403, roller; 404, belt groove; 405, synchronous belt; 500, breaking part; 501, first key groove; 502, coupling sleeve; 503, second key groove; 5003, guide inclined surface; 504, torque limiting groove; 505, torque limiting block; 506, push-pull block; 507, bearing hole; 508, push-pull pin; 509, positioning plate; 5010, path groove. DETAILED DESCRIPTION

[0072] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0073] See also Figure 1 to Figure 15 The technical solution provided by the present invention specifically includes the following embodiments:

[0074] An AGV unloading mechanism includes an AGV trolley 100, a conveying part 200, a flipping part 300, a driving part 400 and a breaking part 500. The conveying part 200 is fixedly arranged on the top of the AGV trolley 100, the conveying part 200 is used for conveying and unloading objects, the flipping part 300 is rotatably arranged on the front and rear sides of the top of the conveying part 200, the flipping part 300 is used for flipping objects, the driving part 400 is fixedly arranged on the bottom of the conveying part 200, and extends through the conveying part 200 to the periphery of the top thereof, the driving part 400 is used for driving the flipping part 300, and the breaking part 500 is arranged on the surface of the flipping part 300, and is used for power control of the flipping part 300.

[0075] For further details, please refer to Figure 2 , Figure 3 As shown:

[0076] The conveying part 200 includes a fixed rod 201, a bracket 202, a conveying frame plate 203 and a conveying roller 204. There are four fixed rods 201, which are fixedly installed on the top of the AGV trolley 100 in a rectangular distribution. There are two brackets 202, which are respectively fixedly installed on the top of two fixed rods 201 on the left and the top of two fixed rods 201 on the right. The conveying frame plate 203 is fixedly installed on the top of the two brackets 202 in a front-to-rear symmetrical manner. The conveying roller 204 is rotatably installed between the front and rear conveying frame plates 203, and there are multiple conveying rollers 204, which are evenly distributed on the left and right.

[0077] Specifically, the unloading mechanism is transported to the place where it is needed by the AGV trolley 100, and the right end of the unloading mechanism is connected to the output end of the conveyor line. When unloading, the items unloaded from the line are transported to the top of the conveyor roller 204 through the item conveyor line, and the conveyor roller 204 rotates counterclockwise to transport the items to the left end for unloading (the power of the conveyor roller 204 can adopt the existing conventional power, and the specific structure is not described in detail).

[0078] For further details, please refer to Figure 6 to Figure 10 As shown:

[0079] The flip part 300 includes a U-shaped metal frame 301, a flip shaft 302, a flip frame 303, a positioning pin 304, an arc groove 305, a right-angle swing arm 306, a through hole 307, a rodless cylinder 308, a clamping rod 309, a clamping plate 3010, a positioning groove 3011, a fixing plate 3012, a first hinge column 3013, an electric telescopic rod 3014, a second hinge column 3015, a cylinder fixing seat 3016 and a servo electric cylinder 3017. The U-shaped metal frame 301 is movably located on the top of the AGV trolley 100 and extends between the front and rear conveying frame plates 203. The bottom of the U-shaped metal frame 301 is penetrated by two square grooves 3001 distributed front and back. The flip shaft 30 2 is rotatably mounted between the front wall and the rear wall of the U-shaped metal frame 301, the turning frame 303 is fixedly mounted at the front end and the rear end of the turning shaft 302, there are two turning frames 303, the positioning pin 304 is fixedly mounted on the side away from the front and rear turning frames 303, and there are two positioning pins 304 fixed on the same turning frame 303, the arc groove 305 is opened through the two opposite ends of the front and rear turning frames 303, and there are two arc grooves 305 at any end of the turning frame 303, and the two arc grooves 305 are concentric with the center of the positioning pin 304 on the same side, the right-angle swing arm 306 is rotatably mounted on the outer wall of the positioning pin 304, and the right-angle swing arm 306 is close to the turning frame 30 3 has two through holes 307 formed on one side thereof, and the positions of the two through holes 307 correspond to the positions of the arc grooves 305. A rodless cylinder 308 is fixedly mounted on one side of the right-angle swing arm 306 away from the flip frame 303, and there are two of them. The two rodless cylinders 308 are respectively located at the periphery of the openings of the two through holes 307. A clamping rod 309 is slidably mounted inside the rodless cylinder 308, and the clamping rod 309 movably penetrates the through holes 307 and the arc grooves 305. A clamping plate 3010 is fixedly mounted on the end of the clamping rod 309. A positioning groove 3011 is formed in the middle of the back sides of the front and rear flip frames 303, and a fixing plate 3012 is fixedly mounted inside the positioning groove 3011. The first hinge column 3013 is fixedly mounted on both ends of a side of the fixed plate 3012 away from the flip frame 303, the electric telescopic rod 3014 is hinged on the outer walls of the two first hinge columns 3013 respectively, the second hinge column 3015 is fixedly mounted on the end corner of a side of the right-angle swing arm 306 away from the flip frame 303, the outer wall of the second hinge column 3015 is hinged to the output rod end of the electric telescopic rod 3014, the cylinder fixing seat 3016 is fixedly mounted on the top of the AGV trolley 100 in a front and rear distribution, the servo electric cylinder 3017 is fixedly mounted inside the cylinder fixing seat 3016, and the top of the output rod of the servo electric cylinder 3017 is fixedly connected to the bottom of the U-shaped metal frame 301.

[0080] The turning part 300 is driven to operate by the driving part 400, so that the turning shaft 302 rotates counterclockwise, and the turning shaft 302 rotates counterclockwise to drive the front and rear turning frames 303 to rotate together, and further drives the right-angle swing arm 306, the rodless cylinder 308, the clamping rod 309 and the clamping plate 3010 to rotate together under the connection of the positioning pin 304. When one set of clamping plates 3010 rotates to the right, the clamping rod 309 is driven to move by the rodless cylinder 308 to push the clamping plate 3010 to clamp the front and back of the article. The clamped articles are turned counterclockwise to the left along the axis of the turning shaft 302 to achieve the turning requirement in the process of unloading articles. When the article is turned to the left, the bottom of the article is about to touch the bracket 202, the output rod of the corresponding set of electric telescopic rods 3014 with the article clamped is recovered, driving the right-angle swing arm 306 to rotate upward along the transfer position with the positioning pin 304, and the rotation of the right-angle swing arm 306 drives the rodless cylinder 308, the clamping rod 309 and the clamping plate 3010 to rotate together. The picking rod 309, the clamping plate 3010 and the clamped object rotate upward together, thereby slowing down the contact speed between the bottom of the object and the top of the bracket 202, avoiding damage to the object caused by impact. At the same time, the clamping plate 3010 rotates to the right to clamp the next object, which will not interfere with the normal efficiency of the next group of clamping plates 3010 in clamping objects. Under the premise of ensuring that the objects are placed lightly, the next group of objects can still be clamped at a good speed. When the bottom of the object is completely in contact with the top of the bracket 202, the rodless cylinder 308 drives the clamping rod 309 to move in the opposite direction, driving the clamping plate 3010 to move together to release the clamping force on the object. After flipping, the object continues to be unloaded to the left along the bracket 202. At the same time, the output rod of the electric telescopic rod 3014 is reset immediately, pushing the right-angle swing arm 306 to rotate along the positioning pin 304, so that the positions of the rodless cylinder 308, the clamping rod 309 and the clamping plate 3010 are reset, waiting for the next object to be clamped.

[0081] For further details, please refer to Figure 3 to Figure 5 As shown:

[0082] The driving unit 400 includes a bilateral reduction motor 401, a synchronous wheel 402, a roller 403, a belt groove 404 and a synchronous belt 405. The bilateral reduction motor 401 is fixedly installed at the bottom of the U-shaped metal frame 301. The synchronous wheel 402 is fixedly installed on the front and rear output shafts of the bilateral reduction motor 401. The roller 403 is rotatably installed on the outer wall of the flip shaft 302 and is located directly above the synchronous wheel 402. The outer wall of the roller 403 is provided with two belt grooves 404 distributed front and back. The opening position of the belt groove 404 corresponds to the position of the synchronous wheel 402 one by one. The synchronous belt 405 is sleeved between the synchronous wheel 402 and the belt groove 404. There are two synchronous belts 405. The two synchronous belts 405 are movable through the front and rear square grooves 3001 respectively.

[0083] Specifically, the output shaft of the bilateral reduction motor 401 drives the front and rear synchronous wheels 402 to rotate, and further drives the roller 403 to rotate under the connection of the front and rear synchronous belts 405, and drives the flip shaft 302 to rotate under the transmission action of the breaking part 500, so that the entire flip part 300 is in operation to flip and unload the items.

[0084] For further details, please refer to Figure 5 as well as Figure 11 to Figure 13 As shown:

[0085] The breaking portion 500 includes a first keyway 501, a coupling sleeve 502, a second keyway 503, a torque limiting groove 504, a torque limiting block 505, a push block 506, a bearing hole 507, a push pin 508, a positioning plate 509 and a path groove 5010. The first keyway 501 is provided at the front and rear ends of the roller 403. The coupling sleeve 502 is slidably mounted on the front end and rear end of the outer wall of the flip shaft 302. The second keyway 503 is provided on a side of the coupling sleeve 502 close to the first keyway 501. A guide bevel 5003 is provided at the mouth of the second keyway 503. The specifications of the second keyway 503 are compatible with those of the first keyway 501, and the second keyway 503 is engaged with the first keyway 501. The torque limiting groove 504 is provided at the front and rear ends of the outer wall of the flip shaft 302. At the rear, the torsion limiting block 505 is slidably installed inside the torsion limiting groove 504, the torsion limiting block 505 is fixedly installed on the inner wall of the coupling sleeve 502, the push-pull block 506 is located at the periphery of the coupling sleeve 502, a bearing hole 507 is provided inside the push-pull block 506, the coupling sleeve 502 is rotatably connected to the bearing hole 507 through a bearing, the push-pull pin 508 is fixedly installed on the left and right sides of the push-pull block 506, and the positioning plates 509 are fixedly installed on the front wall and the rear wall of the U-shaped metal frame 301 in a left-right distribution. The left and right sides of the push-pull block 506 are respectively slidably connected to the inner sides of the left and right positioning plates 509, the path groove 5010 runs through and is opened on the opposite surfaces of the left and right positioning plates 509, and the outer wall of the push-pull pin 508 is slidably connected to the inner wall of the path groove 5010.

[0086] Specifically, the output shaft of the bilateral reduction motor 401 drives the front and rear synchronous wheels 402 to rotate, and further drives the roller 403 to rotate under the connection of the front and rear synchronous belts 405. Due to the bite action of the second keyway 503 and the first keyway 501, during the rotation of the roller 403, the transmission action of the coupling sleeve 502 and the torque limiting action of the torque limiting groove 504 and the torque limiting block 505 further drive the flip shaft 302 to rotate counterclockwise, thereby driving the flip part 300 to rotate as a whole to realize the flipping of the items. When the unloaded items do not need to be flipped, the output rods of the front and rear servo electric cylinders 3017 drive the U-shaped metal frame 301 to move downward, pushing the flip shaft 302 together with the roller 403 downward, and the downward movement of the flip shaft 302 drives the coupling sleeve 502, the push-pull block 506 and the push-pull pin 508 to move downward together, and the downward movement of the push-pull pin 508 is also guided by the path groove 5010, so that the push-pull pin 508 is During the downward movement, 08 also slides along the inner wall of the path groove 5010, further driving the push block 506 and the coupling sleeve 502 to move together, so that the second key groove 503 is separated from the first key groove 501. At this time, the output shaft of the bilateral reduction motor 401 continues to drive the front and rear two synchronous wheels 402 to rotate, and then drives the rollers 403 through the front and rear two synchronous belts 405. After the outer wall of the flip shaft 302 rotates, it will not drive the front and rear two flip frames 303 to continue rotating, reducing the load of the bilateral reduction motor 401, thereby achieving the purpose of saving power consumption, until the rollers 403 move downward to the bottom height of the rollers and the top height of the brackets 202, the two servo cylinders 3017 stop working, thereafter, the unloading items are directly transported to the left along the multiple brackets 202, and, while the items pass through the middle position of the conveying frame plate 203, the top of the rollers 403 provide support and bridging for the items, ensuring smooth transportation and unloading of the items.

[0087] For further details, please refer to Fig.14 , Fig.15 As shown:

[0088] A U-shaped groove 2003 is provided at the top of the conveying frame 203, and the U-shaped groove 2003 is located at the bottom of the flip shaft 302. The width of the U-shaped groove 2003 is greater than the diameter of the flip shaft 302. A guide groove 2004 is provided in the middle of the inner side surface of the conveying frame 203, and the left and right walls of the guide groove 2004 are respectively slidably connected to the left and right outer walls of the U-shaped metal frame 301.

[0089] Specifically, a U-shaped groove 2003 is provided on the top of the conveying frame 203 to give way to the flip shaft 302 for downward movement, thereby preventing the flip shaft 302 from interfering with the top of the conveying frame 203 during downward movement, thereby ensuring that the flip shaft 302 can move freely up and down. The inner wall of the guide groove 2004 is slidably connected to the outer side surface of the U-shaped metal frame 301, which can provide a guiding function for the up and down movement of the U-shaped metal frame 301 and ensure the stability of the movement of the U-shaped metal frame 301.

[0090] In the present scheme, when an AGV unloading mechanism is working, the AGV trolley 100 is used to carry the unloading mechanism to the place where it is needed, and the right end of the unloading mechanism is connected to the output end of the conveyor line. When unloading, the items unloaded from the line are conveyed to the top of the conveyor roller 204 through the item conveyor line, and the items are conveyed to the left end through the conveyor roller 204. At the same time, the output shaft of the bilateral reduction motor 401 drives the front and rear two synchronous wheels 402 to rotate, and further drives the roller 403 to rotate under the connection of the front and rear two synchronous belts 405. Due to the bite action of the second key groove 503 and the first key groove 501, during the rotation of the roller 403, Through the transmission effect of the coupling sleeve 502, and the torque limiting effect of the torque limiting groove 504 and the torque limiting block 505, the flip shaft 302 is further driven to rotate counterclockwise, and the flip shaft 302 rotates counterclockwise to drive the front and rear flip frames 303 to rotate together, and further drives the right-angle swing arm 306, the rodless cylinder 308, the clamping rod 309 and the clamping plate 3010 to rotate together under the connection of the positioning pin 304. When one set of clamping plates 3010 rotates to the right, the clamping rod 309 is driven to move by the rodless cylinder 308, and the clamping plate 3010 is pushed to clamp the front and rear objects. The clamped objects are flipped counterclockwise to the left along the axis of the flip shaft 302. To realize the flipping requirement during the unloading process of the items, when the items are flipped to the left and the bottom of the items is about to touch the bracket 202, the output rods of the corresponding group of electric telescopic rods 3014 clamping the items are recovered, driving the right-angle swing arm 306 to rotate upward along the transfer position with the positioning pin 304. The rotation of the right-angle swing arm 306 drives the rodless cylinder 308, the clamping rod 309, the clamping plate 3010 and the clamped items to rotate upward together, thereby slowing down the contact speed between the bottom of the item and the top of the bracket 202, avoiding damage to the items caused by impact. At the same time, the clamping plate 3010 rotates to the right to clamp the next item without interfering with the next group The clamping plate 3010 has a normal efficiency in clamping items. On the premise of ensuring that the items are placed gently, it still ensures a good clamping speed for the next group of items. When the bottom of the item is completely in contact with the top of the bracket 202, the rodless cylinder 308 drives the clamping rod 309 to move in the opposite direction, driving the clamping plate 3010 to move together to release the clamping force on the item. After turning over, the item continues to be unloaded to the left along the bracket 202. At the same time, the output rod of the electric telescopic rod 3014 is reset immediately, pushing the right-angle swing arm 306 to rotate along the positioning pin 304, so that the position of the rodless cylinder 308, the clamping rod 309 and the clamping plate 3010 is reset, waiting for the next item to be clamped;

[0091] When the unloaded items do not need to be turned over, the output rods of the front and rear servo electric cylinders 3017 drive the U-shaped metal frame 301 to move downward, pushing the turning shaft 302 and the roller 403 downward. The turning shaft 302 moves downward, driving the coupling sleeve 502, the push-pull block 506 and the push-pull pin 508 to move downward together. The push-pull pin 508 moves downward and is also guided by the path groove 5010, so that the push-pull pin 508 slides along the inner wall of the path groove 5010 during the downward movement, further driving the push-pull block 506 and the coupling sleeve 502 to move together, so that the second key groove 503 is separated from the first key groove 501. At this time, the double-sided deceleration After the output shaft of the motor 401 continues to drive the front and rear two synchronous wheels 402 to rotate, it drives the rollers 403 through the front and rear synchronous belts 405 to rotate the outer wall of the flip shaft 302 and will not drive the front and rear flip frames 303 to continue rotating, reducing the load of the bilateral reduction motor 401, thereby achieving the purpose of saving power consumption, until the rollers 403 move downward to the height of their bottoms and the top height of the brackets 202, the two servo cylinders 3017 stop working, thereafter, the unloading items are directly transported to the left along the multiple brackets 202, and the top of the rollers 403 provide support and bridging for the items, ensuring smooth transportation and unloading of the items.

[0092] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. An AGV unloading mechanism, characterized in that: include: AGV car (100); A conveying unit (200) is fixedly arranged on the top of the AGV trolley (100), and the conveying unit (200) is used for conveying and unloading articles; A turning part (300) is rotatably arranged on the front and rear sides of the top of the conveying part (200), and the turning part (300) is used for turning over articles; A driving part (400) is fixedly arranged at the bottom of the conveying part (200) and penetrates the conveying part (200) and extends to the periphery of the top thereof, wherein the driving part (400) is used to drive the turning part (300); The breaking part (500) is arranged on the surface of the breaking part (500) and is used for power control of the turning part (300).

2. The AGV unloading mechanism according to claim 1, characterized in that: The conveying unit (200) comprises: There are four fixing rods (201), and the four fixing rods (201) are fixedly installed on the top of the AGV trolley (100) in a rectangular distribution form; Two brackets (202) are fixedly mounted on the top of the two fixing rods (201) on the left and the top of the two fixing rods (201) on the right, respectively; The conveying frame plate (203) is fixedly mounted on the top of the two brackets (202) in a front-back symmetrical manner; The conveying rollers (204) are rotatably mounted between the front and rear conveying frame plates (203), and there are a plurality of conveying rollers (204), which are distributed at equal distances from left to right.

3. The AGV unloading mechanism according to claim 2, characterized in that: The turning part (300) comprises: A U-shaped metal frame (301) is movably located on the top of the AGV trolley (100) and extends between the front and rear conveying frame plates (203), and two square grooves (3001) distributed front and back are formed through the bottom of the U-shaped metal frame (301); The turning shaft (302) is rotatably mounted between the front wall and the rear wall of the U-shaped metal frame (301); A turning frame (303) is fixedly mounted on the front end and the rear end of the turning shaft (302), and the turning frame (303) is two in number; A positioning pin (304) is fixedly mounted on a side of the front and rear flip frames (303) that is away from each other, and two positioning pins (304) are fixed on the same flip frame (303); The arc groove (305) is formed through two opposite ends of the front and rear flip frames (303), and each end of the flip frame (303) has two arc grooves (305), and the two arc grooves (305) are concentric with the center of the positioning pin (304) located on the same side thereof; A right-angle swing arm (306) is rotatably mounted on the outer wall of the positioning pin (304), and two through holes (307) are formed through a side surface of the right-angle swing arm (306) close to the flip frame (303), and the positions of the two through holes (307) correspond to the positions of the arc groove (305); A rodless cylinder (308) is fixedly mounted on a side of the right-angle swing arm (306) away from the flip frame (303), and there are two of them. The two rodless cylinders (308) are respectively located at the periphery of the openings of the two through holes (307); A clamping rod (309) is slidably mounted inside the rodless cylinder (308), and the clamping rod (309) movably penetrates the through hole (307) and the arc groove (305); The clamping plate (3010) is fixedly mounted on the end of the clamping rod (309).

4. The AGV unloading mechanism according to claim 3, characterized in that: The turning part (300) further comprises: A positioning groove (3011) is provided in the middle of the back sides of the front and rear turning frames (303); A fixing plate (3012) fixedly mounted inside the positioning groove (3011); A first hinge column (3013) is fixedly mounted on two ends of a side surface of the fixing plate (3012) away from the turning frame (303); The electric telescopic rod (3014) is respectively hinged on the outer walls of the two first hinged columns (3013); A second hinged column (3015) is fixedly mounted at a side end corner of the right-angle swing arm (306) away from the flip frame (303), and an outer wall of the second hinged column (3015) is hinged to an end of an output rod of the electric telescopic rod (3014); The cylinder fixing seat (3016) is fixedly mounted on the top of the AGV trolley (100) in a front-to-back distribution; The servo electric cylinder (3017) is fixedly mounted inside the cylinder fixing seat (3016), and the top of the output rod of the servo electric cylinder (3017) is fixedly connected to the bottom of the U-shaped metal frame (301).

5. The AGV unloading mechanism according to claim 4, characterized in that: The driving unit (400) comprises: The double-sided reduction motor (401) is fixedly mounted on the bottom of the double-sided reduction motor (401); The synchronous wheel (402) is fixedly mounted on the front and rear output shafts of the double-sided reduction motor (401); The roller (403) is rotatably mounted on the outer wall of the turning shaft (302) and is located directly above the synchronous wheel (402). The outer wall of the roller (403) is provided with two belt grooves (404) distributed front and back. The opening positions of the belt grooves (404) correspond one to one with the positions of the synchronous wheel (402). The synchronous belt (405) is sleeved between the synchronous wheel (402) and the belt groove (404). There are two synchronous belts (405), and the two synchronous belts (405) are movable through the front and rear square grooves (3001) respectively.

6. The AGV unloading mechanism according to claim 5, characterized in that: The breaking portion (500) comprises: A first keyway (501) is provided at the front and rear ends of the roller (403); A coupling sleeve (502) is slidably mounted on the front end and the rear end of the outer wall of the tilting shaft (302); A second key groove (503) is provided on a side surface of the coupling sleeve (502) close to the first key groove (501), the specification of the second key groove (503) is adapted to the specification of the first key groove (501), and the second key groove (503) is engaged with the first key groove (501); Torsion limiting grooves (504) are provided at the front and rear portions of the outer wall of the tilting shaft (302); The torsion limiting block (505) is slidably mounted inside the torsion limiting groove (504), and the torsion limiting block (505) is fixedly mounted on the inner wall of the coupling sleeve (502).

7. The AGV unloading mechanism according to claim 6, characterized in that: The breaking portion (500) further comprises: A push-pull block (506) is located at the periphery of the coupling sleeve (502), a bearing hole (507) is provided inside the push-pull block (506), and the coupling sleeve (502) is rotatably connected to the bearing hole (507) via a bearing; Push pins (508) are fixedly mounted on the left and right sides of the push block (506); The positioning plates (509) are fixedly mounted on the front wall and the rear wall of the U-shaped metal frame (301) in a left-right distributed manner; The path groove (5010) is formed through the opposite surfaces of the left and right positioning plates (509), and the outer wall of the push-pull pin (508) is slidably connected to the inner wall of the path groove (5010).

8. The AGV unloading mechanism according to claim 7, characterized in that: The mouth of the second keyway (503) is provided with a guide slope (5003).

9. The AGV unloading mechanism according to claim 8, characterized in that: The left and right side surfaces of the push-pull block (506) are respectively slidably connected to the inner side surfaces of the left and right positioning plates (509).

10. The AGV unloading mechanism according to claim 9, characterized in that: A U-shaped groove (2003) is provided at the top of the conveying frame plate (203), the U-shaped groove (2003) is located at the bottom of the turning shaft (302), and the width of the U-shaped groove (2003) is greater than the diameter of the turning shaft (302). A guide groove (2004) is provided in the middle of the inner side surface of the conveying frame plate (203), and the left wall and the right wall of the guide groove (2004) are respectively slidably connected to the left and right outer walls of the U-shaped metal frame (301).

Images